9+ Australia to Vietnam Flight Times & Duration


9+ Australia to Vietnam Flight Times & Duration

The length of a journey by air between Australia and Vietnam varies based mostly on a number of elements. Direct flights usually supply the quickest journey possibility, whereas itineraries involving layovers or connecting flights will naturally lengthen the general journey interval. Departure and arrival cities inside every nation additionally affect the entire time spent in transit, as distances between these places differ considerably. Different contributing parts embody plane sort, air visitors management, and potential weather-related delays.

Understanding the standard vary for such journeys is important for vacationers planning journeys between these two nations. Correct estimations allow efficient itinerary growth, permitting for applicable scheduling of connecting flights, floor transportation, and lodging. This data empowers vacationers to reduce transit time and maximize their time experiencing their chosen locations, whether or not for enterprise or leisure. The appearance of available flight data on-line has considerably streamlined this planning course of, permitting vacationers to check choices and make knowledgeable choices based mostly on their particular wants and priorities.

This dialogue will additional discover particular flight routes, common durations, and elements influencing journey time between main Australian and Vietnamese cities. It should additionally delve into methods for locating probably the most environment friendly and cost-effective flight choices, together with ideas for reserving flights and navigating potential journey disruptions.

1. Direct Flights

Direct flights play an important function in minimizing total journey time between Australia and Vietnam. By eliminating the necessity for layovers and airport transfers, direct routes supply a streamlined journey expertise, notably helpful for time-sensitive vacationers. This part will delve into the important thing facets of direct flights throughout the context of journey between these two nations.

  • Availability and Frequency

    Direct flight availability is dependent upon the particular departure and arrival cities. Main hubs like Sydney and Melbourne usually supply extra frequent direct connections to Hanoi and Ho Chi Minh Metropolis than smaller Australian cities. Airways usually alter flight schedules seasonally, so frequency can fluctuate all year long.

  • Airways Providing Direct Routes

    A number of airways function direct flights between Australia and Vietnam, together with nationwide carriers and funds airways. Understanding the accessible choices permits vacationers to check pricing, baggage allowances, and in-flight providers.

  • Typical Flight Period

    Direct flight durations usually vary between 7 to 9 hours, relying on the particular route and prevailing wind circumstances. This considerably reduces the general journey in comparison with itineraries involving layovers, which may add a number of hours to the entire journey time.

  • Value Concerns

    Whereas direct flights usually command a premium on account of comfort, they will generally supply aggressive pricing in comparison with connecting flights, particularly throughout promotional intervals. Cautious monitoring of airfares and versatile journey dates may also help safe cost-effective direct flight choices.

Selecting a direct flight contributes considerably to a smoother and extra time-efficient journey expertise between Australia and Vietnam. Weighing the advantages of shorter journey time towards potential value variations empowers vacationers to make knowledgeable choices aligned with their particular person wants and preferences. Moreover, understanding the nuances of direct flight availability and frequency aids in efficient journey planning and itinerary growth.

2. Connecting Flights

Connecting flights characterize a big issue influencing total journey time between Australia and Vietnam. Whereas usually presenting an extended journey in comparison with direct routes, connecting flights supply various journey choices with potential value benefits and expanded route entry. Understanding the nuances of connecting flights is essential for knowledgeable decision-making.

  • Layover Areas and Durations

    Connecting flights necessitate layovers, usually in regional hubs comparable to Kuala Lumpur, Singapore, Bangkok, or Hong Kong. Layover durations can vary from a number of hours to a whole day, impacting complete journey time considerably. Shorter layovers decrease transit time however threat missed connections on account of potential flight delays. Conversely, longer layovers supply alternatives to discover the layover metropolis however lengthen the general journey.

  • Airline Partnerships and Interline Agreements

    Many airways function beneath partnerships or interline agreements, enabling smoother baggage transfers and coordinated ticketing for connecting flights. Choosing airways throughout the identical alliance or with established partnerships usually simplifies the connection course of, decreasing potential problems and delays.

  • Value Implications and Funds Concerns

    Connecting flights incessantly current decrease fares in comparison with direct routes, making them a pretty possibility for budget-conscious vacationers. Nonetheless, prolonged journey time, potential layover bills (meals, lodging), and the elevated threat of disruptions ought to be factored into the general value evaluation.

  • Potential for Disruptions and Delays

    Introducing a connecting flight will increase the chance of disruptions impacting the general journey. Delays on the preliminary leg can result in missed connections, necessitating rebooking and doubtlessly extending the entire journey time considerably. Vacationers ought to contemplate journey insurance coverage and versatile reserving choices to mitigate the influence of potential disruptions.

The selection between connecting and direct flights is dependent upon particular person priorities and journey constraints. Connecting flights supply value financial savings and broader route entry however introduce complexities relating to layovers and potential disruptions. Cautious consideration of those elements, alongside a complete understanding of particular person wants and preferences, permits vacationers to navigate the accessible choices successfully and make knowledgeable choices relating to their journey between Australia and Vietnam.

3. Departure Metropolis

The departure metropolis inside Australia performs a big function in figuring out the general flight time to Vietnam. Geographical distance and accessible flight routes instantly affect the length of the journey. Understanding the influence of the departure metropolis allows vacationers to make knowledgeable choices relating to flight choice and itinerary planning.

  • Distance from Vietnam

    The geographical distance between the Australian departure metropolis and the meant vacation spot in Vietnam is a main issue influencing flight time. Cities on Australia’s east coast, comparable to Sydney and Brisbane, are usually nearer to Vietnam than these on the west coast, like Perth. This interprets to shorter direct flight instances from japanese Australian cities, whereas flights originating from western Australia usually require longer journey durations or connecting flights.

  • Availability of Direct Flights

    The departure metropolis influences the provision of direct flights to Vietnam. Main Australian cities like Sydney and Melbourne usually supply extra frequent direct flights to Vietnamese hubs like Hanoi and Ho Chi Minh Metropolis. Smaller cities or regional airports could have restricted or no direct connections, necessitating connecting flights by means of main hubs, which provides to the general journey time.

  • Connecting Flight Choices

    For departure cities with out direct flights to Vietnam, the accessible connecting flight choices and layover places influence the general journey length. Connecting flights would possibly contain layovers in regional hubs like Singapore, Kuala Lumpur, or Bangkok, every including to the entire journey time. The selection of connecting flight and layover location can considerably affect each the length and price of the journey.

  • Flight Schedules and Frequency

    Departure metropolis additionally impacts flight schedules and frequencies. Whereas main cities would possibly supply a number of every day flights to Vietnam, smaller cities could have restricted or much less frequent connections. This issue influences journey flexibility and may influence the general journey length, notably when coordinating connecting flights or particular arrival instances.

Cautious consideration of the departure metropolis’s affect on flight routes, availability, and schedules is important for efficient journey planning. Evaluating the trade-offs between direct flights and connecting itineraries, alongside the geographical distance and flight frequency, permits vacationers to optimize their journey between Australia and Vietnam and choose the most suitable choice based mostly on particular person wants and preferences.

4. Arrival Metropolis

The arrival metropolis in Vietnam considerably influences the general flight length from Australia. Completely different Vietnamese airports serve distinct areas, impacting the routing and potential layover necessities for vacationers. Understanding the function of the arrival metropolis is essential for correct flight time estimation and environment friendly itinerary planning.

  • Main Hubs vs. Secondary Airports

    Vietnam’s main worldwide arrival factors are Hanoi (Noi Bai Worldwide Airport – HAN) and Ho Chi Minh Metropolis (Tan Son Nhat Worldwide Airport – SGN). Flights from Australia incessantly service these main hubs. Arriving at a secondary airport, comparable to Da Nang (Da Nang Worldwide Airport – DAD) or Nha Trang (Cam Ranh Worldwide Airport – CXR), would possibly necessitate a connecting flight inside Vietnam, including to the general journey time. Direct flights to secondary airports, whereas generally accessible, are sometimes much less frequent and will originate from fewer Australian cities.

  • Geographical Location inside Vietnam

    The arrival metropolis’s location inside Vietnam influences the flight path and length. Flights arriving in northern Vietnam (Hanoi) from Australia usually observe a barely completely different trajectory than these destined for southern Vietnam (Ho Chi Minh Metropolis). This distinction in flight path, albeit minor, can influence the general flight time. Moreover, if the ultimate vacation spot is considerably faraway from the arrival airport, extra home journey time have to be thought-about.

  • Connecting Flight Necessities

    The arrival metropolis usually dictates the necessity for connecting flights, notably when touring from particular Australian cities or to less-serviced locations inside Vietnam. As an illustration, a flight from Perth to Phu Quoc Island (Phu Quoc Worldwide Airport – PQC) will possible necessitate a connection by means of Ho Chi Minh Metropolis, including a number of hours to the entire journey time. Understanding these potential connection necessities is important for correct journey planning.

  • Influence on General Itinerary

    The chosen arrival metropolis impacts the general journey itinerary, together with onward journey preparations and lodging bookings. Arriving in a significant hub like Hanoi or Ho Chi Minh Metropolis provides extra flexibility relating to connecting flights and floor transportation choices. Nonetheless, arriving at a smaller airport would possibly necessitate extra pre-arranged journey plans and will restrict flexibility, notably if experiencing unexpected delays.

Cautious consideration of the arrival metropolis’s location, accessible flight routes, and potential connection necessities is paramount for correct estimation of complete journey time between Australia and Vietnam. Choosing an arrival metropolis aligned with the broader journey itinerary permits for streamlined journey planning and minimizes potential disruptions. This detailed understanding ensures a smoother, extra predictable journey expertise.

5. Airline Alternative

Airline choice considerably impacts the general journey time between Australia and Vietnam. Completely different airways supply various route constructions, plane sorts, and layover choices, all contributing to the entire length of the journey. Selecting a provider providing direct flights naturally minimizes journey time in comparison with airways requiring connecting flights. For instance, Vietnam Airways usually supplies direct routes from main Australian cities to Hanoi or Ho Chi Minh Metropolis, doubtlessly decreasing journey time in comparison with choices involving a layover with an airline like Scoot or AirAsia.

Past direct routes, the selection of airline influences layover durations and connection effectivity. Some airways function inside alliances, facilitating smoother transfers and shorter layover instances in hub airports. As an illustration, a traveler flying with Qantas (a part of the Oneworld alliance) connecting by means of a Cathay Pacific hub (additionally Oneworld) in Hong Kong would possibly expertise a shorter, extra streamlined layover in comparison with transferring between unrelated airways. This effectivity can shave helpful hours off the general journey. Moreover, plane sort influences flight pace; some airways make the most of newer, sooner plane on long-haul routes, contributing to marginally shorter flight instances.

Cautious consideration of airline choices, together with route constructions, alliance affiliations, and plane sorts, allows vacationers to optimize their itineraries and decrease journey time between Australia and Vietnam. Evaluating these elements alongside value and repair preferences empowers vacationers to make knowledgeable choices aligned with their particular person wants. Understanding the affect of airline alternative on total journey time is important for environment friendly and strategic journey planning.

6. Time of Yr

Differences due to the season considerably affect flight durations and availability between Australia and Vietnam. Understanding these fluctuations allows vacationers to anticipate potential impacts on their itineraries and make knowledgeable choices relating to journey dates and reserving methods.

  • Peak Season and Demand

    Peak journey seasons, usually coinciding with college holidays and main festivals in each nations, expertise heightened demand for flights. This elevated demand can result in longer flight instances on account of air visitors congestion and doubtlessly necessitate reserving flights properly upfront. Peak season journey usually corresponds with greater airfares and diminished availability of most popular flight instances.

  • Climate Patterns and Flight Routes

    Climate patterns, notably the monsoon season in Vietnam and cyclone season in Australia, can influence flight routes and durations. Airways would possibly alter flight paths to keep away from opposed climate circumstances, doubtlessly resulting in barely longer flight instances. Extreme climate also can trigger flight delays or cancellations, impacting journey schedules and doubtlessly extending total journey durations.

  • Airline Schedules and Flight Frequency

    Airways usually alter flight schedules seasonally to accommodate fluctuating demand. Throughout peak season, airways would possibly enhance flight frequency on standard routes, providing extra journey choices. Conversely, throughout off-peak seasons, flight frequency would possibly lower, doubtlessly limiting decisions and influencing connection availability. These schedule changes necessitate cautious consideration of journey dates to make sure alignment with desired itineraries.

  • Influence on Airfares and Reserving Methods

    Time of 12 months considerably influences airfares. Peak season journey usually corresponds with greater costs, whereas off-peak intervals usually current alternatives for extra budget-friendly journey. Versatile journey dates and early reserving methods can mitigate the influence of seasonal worth fluctuations, permitting vacationers to safe extra favorable fares whatever the time of 12 months.

Contemplating the time of 12 months when planning journey between Australia and Vietnam allows vacationers to anticipate potential impacts on flight availability, length, and price. Understanding differences due to the season empowers vacationers to make knowledgeable choices relating to journey dates, reserving methods, and total itinerary growth, making certain a smoother and extra predictable journey expertise.

7. Plane Sort

Plane sort performs a refined but discernible function in influencing flight instances between Australia and Vietnam. Whereas not as impactful as distance or direct routing, the plane’s cruising pace and gasoline effectivity contribute to the general length of the journey. Understanding these nuances permits for a extra complete understanding of the elements affecting journey time.

  • Cruising Pace

    Completely different plane fashions have various cruising speeds. Whereas the distinction might sound marginal on an hourly foundation, it may well accumulate over a long-haul flight just like the one between Australia and Vietnam. As an illustration, a Boeing 787 Dreamliner usually cruises barely sooner than an Airbus A330, doubtlessly leading to a slightly shorter flight time, all different elements being equal.

  • Gas Effectivity and Vary

    Gas effectivity influences flight planning. Extra fuel-efficient plane can fly longer distances with out refueling, doubtlessly enabling extra direct routes. This is usually a issue on routes between Australia and Vietnam, particularly for flights originating from cities additional away like Perth. A extra fuel-efficient plane would possibly have the ability to fly direct, whereas a much less environment friendly mannequin would possibly necessitate a refueling cease, including to the general journey time.

  • Airline Fleet Composition

    Airways working routes between Australia and Vietnam make the most of completely different plane sorts inside their fleets. Funds airways would possibly prioritize fuel-efficient fashions just like the Airbus A321neo for cost-effectiveness, whereas full-service carriers would possibly deploy bigger, extra comfy plane just like the Airbus A350 or Boeing 777 on long-haul routes. These decisions influence flight length based mostly on the plane’s particular efficiency traits.

  • Influence on Flight Time Variability

    Whereas plane sort contributes to total flight length, its influence is much less pronounced than different elements comparable to headwinds, air visitors management, and chosen routing. The marginal variations in cruising speeds between plane sorts translate to comparatively minor variations in total flight time, usually measured in minutes quite than hours. Nonetheless, for time-sensitive vacationers, even these minor variations could be related.

In abstract, plane sort contributes to the general flight length between Australia and Vietnam, primarily by means of variations in cruising pace and gasoline effectivity. Whereas these variations are sometimes much less vital than different elements influencing flight instances, understanding their influence contributes to a extra complete understanding of the complexities concerned in long-haul air journey. Contemplating plane sort alongside different elements like airline alternative and route construction empowers vacationers to make knowledgeable choices, optimizing their journeys for effectivity and luxury.

8. Potential Delays

Potential delays characterize an important consideration when estimating journey time between Australia and Vietnam. Unexpected disruptions can considerably influence total journey length, necessitating versatile itinerary planning and proactive administration of potential setbacks. Understanding the assorted sources of delays and their potential influence empowers vacationers to mitigate disruptions and keep real looking expectations relating to journey time.

  • Climate Disruptions

    Climate circumstances, each in Australia and Vietnam, could cause vital flight delays. Extreme storms, cyclones, typhoons, and heavy fog can disrupt airport operations, resulting in flight cancellations or prolonged ready instances. The monsoon season in Vietnam (usually Might to October) and the cyclone season in Australia (November to April) current greater dangers of weather-related disruptions. These delays can vary from a number of hours to a number of days, impacting connecting flights and subsequent journey preparations.

  • Air Site visitors Congestion

    Air visitors congestion, notably in busy Asian airspaces, can contribute to flight delays. Holding patterns and rerouting on account of congestion can add vital time to a journey. Peak journey seasons usually exacerbate air visitors congestion, additional rising the chance of delays. Vacationers ought to anticipate potential delays on account of air visitors, particularly when flying throughout peak hours or intervals of excessive journey quantity.

  • Technical Points

    Mechanical issues with plane could cause surprising delays. Pre-flight inspections and essential upkeep can postpone departures, impacting connecting flights and total journey time. Whereas airways try to reduce technical disruptions, these points are inherently unpredictable and may come up at any level throughout the journey.

  • Airport Operational Points

    Points inside airport operations, comparable to baggage dealing with issues, safety delays, or staffing shortages, also can contribute to flight delays. These disruptions, whereas usually much less extreme than climate or technical points, can nonetheless influence departure instances and connecting flight schedules. Vacationers ought to think about potential delays associated to airport operations, particularly throughout peak journey intervals.

In conclusion, numerous unexpected circumstances can contribute to flight delays between Australia and Vietnam. Whereas these delays are sometimes unavoidable, understanding their potential causes and influence permits vacationers to handle expectations, implement contingency plans, and navigate disruptions successfully. Versatile itinerary planning, together with buffer time between connecting flights and contemplating journey insurance coverage, can mitigate the influence of potential delays and guarantee a smoother journey expertise regardless of unexpected setbacks. Sensible expectations relating to potential delays contribute considerably to a much less aggravating and extra manageable journey.

9. Route Effectivity

Route effectivity considerably impacts flight instances between Australia and Vietnam. A extra environment friendly route minimizes the gap traveled, instantly correlating to a shorter flight length and diminished gasoline consumption. A number of elements contribute to route effectivity, together with air visitors management, climate programs, and geopolitical issues. Air visitors management dictates flight paths, generally necessitating deviations from probably the most direct route to take care of secure separation between plane. Climate programs, comparable to jet streams and storm fronts, can affect flight paths; airways usually alter routes to capitalize on favorable tailwinds or keep away from opposed climate circumstances, doubtlessly impacting total flight time. Geopolitical elements, comparable to airspace restrictions over sure nations, also can necessitate deviations from probably the most geographically direct route, including to the general distance and flight length. As an illustration, a flight from Sydney to Hanoi would possibly take a barely longer route to bypass restricted airspace, impacting the entire journey time.

The sensible significance of understanding route effectivity lies in knowledgeable flight choice. Whereas passengers may not have direct management over air visitors management or climate programs, consciousness of those elements permits for extra real looking expectations relating to flight durations. Selecting airways identified for prioritizing environment friendly routing, when accessible, can contribute to a shorter journey time. Moreover, understanding potential route deviations on account of geopolitical elements permits vacationers to anticipate doable variations in flight instances and plan accordingly. For instance, being conscious that flights between Melbourne and Ho Chi Minh Metropolis would possibly expertise differences due to the season in routing on account of monsoon climate patterns permits vacationers to issue potential delays into their itineraries.

In abstract, route effectivity represents a crucial element of total flight time between Australia and Vietnam. Elements influencing route effectivity, comparable to air visitors management, climate programs, and geopolitical issues, can influence flight length. A nuanced understanding of those elements allows knowledgeable decision-making relating to flight choice, administration of expectations relating to journey time, and more practical planning for potential variations in flight durations. This understanding contributes to a smoother and extra predictable journey expertise.

Often Requested Questions

This part addresses widespread inquiries relating to flight durations between Australia and Vietnam, offering concise and informative responses to facilitate knowledgeable journey planning.

Query 1: What’s the common direct flight time between Sydney and Ho Chi Minh Metropolis?

Direct flights from Sydney to Ho Chi Minh Metropolis usually vary from 8 to 9 hours.

Query 2: How does the time of 12 months have an effect on flight durations?

Climate patterns and peak journey seasons can affect flight instances. Monsoon season in Vietnam and peak vacation intervals could result in longer flights on account of rerouting or air visitors congestion.

Query 3: Are connecting flights considerably longer than direct flights?

Connecting flights usually add a number of hours to the entire journey time, relying on the layover length and site. Layovers can vary from a number of hours to a full day.

Query 4: Which airways supply direct flights from Australia to Vietnam?

A number of airways, together with Vietnam Airways, Qantas, and Jetstar, supply direct flights on choose routes. Availability varies relying on the departure and arrival cities.

Query 5: How can vacationers discover probably the most environment friendly flight routes?

Using on-line flight comparability instruments permits vacationers to discover numerous route choices, examine flight durations, and determine probably the most environment friendly itineraries based mostly on their particular wants.

Query 6: How do departure and arrival cities inside every nation affect journey time?

Geographical distance between departure and arrival cities is a main issue impacting flight length. Flights from Perth, for instance, will usually be longer than these from Brisbane on account of its location on the western coast of Australia. Equally, arriving at a smaller airport in Vietnam could require extra home journey time to achieve the ultimate vacation spot.

Understanding these elements allows efficient planning and real looking expectations relating to journey time between Australia and Vietnam. Cautious consideration of those facets contributes to a smoother, extra predictable journey expertise.

For additional data relating to particular routes, schedules, and airline choices, seek the advice of on-line journey companies and airline web sites.

Suggestions for Optimizing Journey Between Australia and Vietnam

Optimizing journey time between Australia and Vietnam requires cautious planning and consideration of a number of key elements. The following tips supply sensible steerage for streamlining journeys and maximizing time spent on the chosen vacation spot.

Tip 1: Ebook Flights in Advance: Securing flights properly upfront, notably throughout peak season, permits entry to a wider choice of flight instances and doubtlessly extra favorable fares. Early reserving additionally supplies ample alternative to analysis numerous routes and airways, optimizing for each value and length.

Tip 2: Take into account Direct Flights: Direct flights, whereas generally costlier, considerably cut back total journey time by eliminating layovers and related transit time. Direct routes are perfect for time-sensitive vacationers or these prioritizing a streamlined journey.

Tip 3: Consider Connecting Flight Choices Strategically: When direct flights are unavailable or cost-prohibitive, fastidiously consider connecting flight choices. Take into account layover durations, airport switch instances, and the potential for delays. Choosing airways throughout the identical alliance can usually streamline the connection course of.

Tip 4: Make the most of Flight Comparability Web sites: On-line flight comparability instruments present complete overviews of obtainable routes, airways, and costs. These sources allow vacationers to check flight durations, determine probably the most environment friendly itineraries, and filter outcomes based mostly on particular preferences.

Tip 5: Think about Journey Time to/from Airports: Account for journey time to and from airports in each Australia and Vietnam. Take into account visitors circumstances, transportation choices, and potential delays when estimating total journey length. This ensures correct scheduling and avoids missed flights.

Tip 6: Be Conscious of Time Zone Variations: Australia and Vietnam observe completely different time zones. Calculate time zone variations precisely to keep away from scheduling conflicts and guarantee easy transitions upon arrival. That is essential for coordinating native transportation, lodging check-in, and different deliberate actions.

Tip 7: Pack Gentle to Expedite Airport Processes: Touring with minimal baggage streamlines check-in, safety procedures, and baggage declare, saving helpful time at each departure and arrival airports. Minimizing baggage additionally reduces the danger of misplaced or delayed baggage.

Tip 8: Keep Knowledgeable About Journey Advisories and Laws: Keep up to date on journey advisories, visa necessities, and any particular rules associated to journey between Australia and Vietnam. This consciousness prevents potential delays or problems upon arrival and ensures a easy journey expertise.

By implementing these methods, vacationers can optimize their journeys between Australia and Vietnam, minimizing journey time and maximizing time spent exploring their chosen vacation spot. Environment friendly planning and knowledgeable decision-making contribute considerably to a smoother, much less aggravating journey expertise.

The following tips present a basis for optimizing journey time. The next conclusion synthesizes these factors and provides closing suggestions for environment friendly journey planning.

Conclusion

Journey length between Australia and Vietnam hinges on a number of interconnected elements. Direct flights supply the quickest possibility, influenced by departure and arrival metropolis decisions. Connecting flights, whereas doubtlessly extending journey time on account of layovers, can supply value benefits and entry to a wider vary of locations. Airline choice, time of 12 months, plane sort, and potential delays introduce additional variables influencing total journey length. Route effectivity, impacted by air visitors management, climate patterns, and geopolitical issues, performs a refined but essential function. Cautious consideration of those parts permits vacationers to develop real looking expectations and knowledgeable journey methods.

Efficient administration of journey time between Australia and Vietnam empowers vacationers to maximise their expertise. Strategic planning, knowledgeable decision-making, and utilization of obtainable sources, comparable to flight comparability web sites and airline route maps, contribute considerably to environment friendly and gratifying journey. Proactive consideration of potential delays, versatile itinerary growth, and adherence to journey advisories additional improve the chance of a easy and predictable journey. In the end, a complete understanding of the elements impacting flight time between these two nations permits vacationers to navigate complexities successfully and optimize their journey expertise.