Cheap flights from Hanoi to Sydney from $238

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 29/10. Fares are subject to change and may not be available on all flights or dates of travel.
HAN — SYD
12 10月 — 19 10月1
1 adult
1 adult, Economy

Cheapflights Tip: The best prices from Hanoi Noibai to Sydney Kingsford Smith are usually found in March or May, booked 78 days in advance, depart on a Thursday or Friday and return on a Tuesday

Cheap flight deals from Hanoi to Sydney

Discover tips and strategies to find the most affordable flight options for your journey from Hanoi (HAN) to Sydney (SYD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 12 9月 2025.

Round-trip from

$493

One-way from

$238

Popular in

January

Cheapest in

March

Average price

$926

Good round-trip deal

$504 or less

Good one-way deal

$259 or less
VietJet Air
  • VietJet Air
  • 21/10-25/10
  • 2 total stops
  • 33h 25m total
  • Hanoi to Sydney
29/10
  • 29/10
  • 2 total stops
  • 41h 50m total
  • Hanoi to Sydney
Highest demand for flights based on searches. 16% potential increase in price ($270 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease ($46 potential savings vs. average return price).
Average for round-trip flights in September 2025
Price to beat on a round-trip flight from Hanoi Noibai to Sydney Kingsford Smith.
Price to beat on a one-way flight from Hanoi Noibai to Sydney Kingsford Smith.

Find flight deals from Hanoi to Sydney

Cheapest flights from Hanoi to Sydney
Explore the most affordable flight options available from Hanoi to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 9月 2025.

週二 21/1010:15HAN - SYD
1 stop18h 05mVietJet Air
週六 25/1011:15SYD - HAN
1 stop15h 20mVietJet Air
Deal found 10/9$493
週一 27/1008:40HAN - SYD
1 stop19h 25mVietJet Air
週一 3/1111:15SYD - HAN
1 stop15h 10mVietJet Air
Deal found 11/9$498
週二 21/1008:55HAN - SYD
1 stop19h 25mVietJet Air
週二 28/1011:15SYD - HAN
1 stop18h 10mVietJet Air
Deal found 10/9$520
週一 27/1008:40HAN - SYD
2 stops24h 25mMultiple Airlines
週一 3/1114:20SYD - HAN
2 stops32h 55mMultiple Airlines
Deal found 11/9$525
週四 23/1012:55HAN - SYD
1 stop27h 15mMultiple Airlines
週四 30/1020:05SYD - HAN
2 stops31h 50mMultiple Airlines
Deal found 11/9$556
週四 23/1012:55HAN - SYD
1 stop27h 15mScoot
週四 30/1020:05SYD - HAN
1 stop16h 40mScoot
Deal found 11/9$567
週日 19/1006:35HAN - SYD
1 stop21h 45mVietJet Air
週六 25/1011:15SYD - HAN
1 stop15h 55mVietJet Air
Deal found 11/9$568
週六 25/1023:45HAN - SYD
1 stop28h 35mVietJet Air
週六 1/1111:15SYD - HAN
1 stop14h 05mVietJet Air
Deal found 10/9$572

Cheapflights Fare Finder

 
Customise your flight search to find flights from Hanoi to Sydney that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 12 9月 2025.
Use the filters below to find and compare flights from Hanoi to Sydney that are best for you.

Fly from

Hanoi

Fly to

Sydney

Route

Depart

Return

Price

HanoiSydney

HAN - SYD

HANSYD

Hanoi Noibai

週一 27/10

08:40-08:05

1 stop19h 25m

Sydney Kingsford Smith

週一 3/11

11:15-22:25

1 stop15h 10m

$498

HanoiSydney

HAN - SYD

HANSYD

Hanoi Noibai

週四 23/10

12:55-20:10

1 stop27h 15m

Sydney Kingsford Smith

週四 30/10

20:05-08:45

1 stop16h 40m

$567

HanoiSydney

HAN - SYD

HANSYD

Hanoi Noibai

週四 23/10

05:30-20:10

2 stops34h 40m

Sydney Kingsford Smith

週四 30/10

20:05-23:10

2 stops31h 05m

$587

HanoiSydney

HAN - SYD

HANSYD

Hanoi Noibai

週日 26/10

19:15-13:05

3 stops37h 50m

Sydney Kingsford Smith

週日 2/11

20:05-23:55

2 stops31h 50m

$648

HanoiSydney

HAN - SYD

HANSYD

Hanoi Noibai

週一 27/10

06:40-08:05

1 stop21h 25m

Sydney Kingsford Smith

週一 3/11

14:20-14:10

2 stops27h 50m

$706

HanoiSydney

HAN - SYD

HANSYD

Hanoi Noibai

週日 15/2

09:40-18:50

1 stop29h 10m

Sydney Kingsford Smith

週五 20/2

14:20-08:35

1 stop22h 15m

$707

HanoiSydney

HAN - SYD

HANSYD

Hanoi Noibai

週日 19/10

10:40-08:20

2 stops17h 40m

Sydney Kingsford Smith

週六 25/10

22:15-13:25

2 stops19h 10m

$709

HanoiSydney

HAN - SYD

HANSYD

Hanoi Noibai

週二 18/11

06:40-08:05

1 stop21h 25m

Sydney Kingsford Smith

週六 29/11

07:15-17:20

1 stop14h 05m

$731

HanoiSydney

HAN - SYD

HANSYD

Hanoi Noibai

週一 22/9

06:35-07:20

1 stop21h 45m

$243

HanoiSydney

HAN - SYD

HANSYD

Hanoi Noibai

週五 7/11

10:05-08:05

1 stop18h 00m

$255

Flights are sorted by cheapest return flights first.

Deals found on 12/9

Showing 1-10 of 20 results
1
2

Best time to book a flight from Hanoi to Sydney

Have a flexible travel schedule? Discover the best time to fly to Sydney from Hanoi with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Hanoi to Sydney

How far ahead should I book a flight from Hanoi to Sydney?

Use this chart to determine the optimal time to book a return flight from Hanoi to Sydney. Price data was last updated on 29 August 2025.

Booking 77 days in advance of your planned departure date is, on average, the best time to get cheap flights from Hanoi to Sydney. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Hanoi to Sydney?

Currently, May is the cheapest month in which you can book a flight from Hanoi to Sydney (average of $129). Flying from Hanoi to Sydney in October is currently the most expensive (average of $171). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from HAN to SYD?

Find hourly flight availability from Hanoi to Sydney. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 12 9月 2025.

When flying from Hanoi to Sydney, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 40% versus a flight in the morning.

What is the cheapest day to fly from Hanoi to Sydney?

Use this chart to determine the cheapest time to fly return from Hanoi to Sydney. Price data was last updated on 16 December 2024.

Travellers seeking maximum savings on their Hanoi to Sydney flight should consider departing on Sunday afternoons when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Sydney

Get insights into the airlines that provide service to Sydney. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Sydney. Reviews last updated 12 9月 2025.
Get a feel of what it's like to fly with Vietnam Airlines and VietJet Air from Hanoi to Sydney by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Boarding

7.5

Crew

8.1

Entertainment

6.3

Overall

7.6

Comfort

7.6

Food

6.8

Reviews

1 / 14
10.0
Excellent

Allen,Aug 2025

SGN - PER

We were surprised. Vietnam airlines was a wonderful and comfortable experience. Our flights were on time, the staff were very attentive, and the aircraft was spacious. We flew on a 787.

Boarding

7.5

Crew

8.1

Entertainment

6.3

Overall

7.6

Comfort

7.6

Food

6.8

Reviews

1 / 14
10.0
Excellent

Allen,Aug 2025

SGN - PER

We were surprised. Vietnam airlines was a wonderful and comfortable experience. Our flights were on time, the staff were very attentive, and the aircraft was spacious. We flew on a 787.

Boarding

7.5

Crew

8.1

Entertainment

6.3

Overall

7.6

Comfort

7.6

Food

6.8

Reviews

1 / 14
10.0
Excellent

Allen,Aug 2025

SGN - PER

We were surprised. Vietnam airlines was a wonderful and comfortable experience. Our flights were on time, the staff were very attentive, and the aircraft was spacious. We flew on a 787.

Related info for your journey

Find useful and relevant information for your journey from Hanoi to Sydney. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airports do I use to fly from Hanoi to Sydney?

    To fly from Hanoi to Sydney, you need to book a flight from Noibai (HAN) to Kingsford Smith (SYD). Nonstop flights to Sydney Kingsford Smith from Hanoi Noibai take 9h 25m on average. When it comes time to book airfare, you have a few options: there is 1 outbound flight from Noibai to Kingsford Smith offered by 2 different airlines.

  • How popular is this Hanoi to Sydney flight route?

  • How long is the flight from Hanoi to Sydney?

    Departing from Hanoi to Sydney will take you 19h 25m. Airlines will cover a distance of 7783 km. Both multi-stop and direct flights can be found to your destination and back.

  • What are the cheapest airlines flying from Hanoi to Sydney round-trip?

    Flying on VietJet Air is currently your cheapest option to Sydney, with prices starting at $478. Another option worth looking into is Vietnam Airlines, starting at $867 round trip. VietJet Air is currently priced 47% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Hanoi to Sydney one-way?

    The cheapest airline one-way is VietJet Air, with whom users have recently found tickets for as low as $243. However, be on the lookout for offers from Scoot and China Southern, as they are both options that can get you from Hanoi to Sydney for a low price.

  • What are the most reliable airlines from Hanoi to Sydney?

    The top 3 most reliable airlines when flying from Hanoi to Sydney are VietJet Air (50%), Vietnam Airlines (26%) and Cambodia Angkor Air (26%).

  • What are the cheapest flights from Hanoi to Sydney?

    On average you can expect to pay $1,111 for a flight from Hanoi to Sydney. The cheapest flight overall is $230 while the most popular route, (Hanoi Noibai - Sydney Kingsford Smith) is currently priced at $498.

  • Can I find deals for flights from Hanoi to Sydney that include hotel bookings?

    Yes. In addition to deals on Hanoi to Sydney flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Hanoi to Sydney?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Hanoi to Sydney.

  • Can I find deals for business class flights from Hanoi to Sydney?

    Yes. Cheapflights offers flight deals from Hanoi to Sydney by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Hanoi to Sydney?

    Currently, May is the cheapest month in which you can book a flight from Hanoi to Sydney (average of $129). Flying from Hanoi to Sydney in October is currently the most expensive (average of $171). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Parramatta
Wollongong
Katoomba
Penrith
Terrigal
Manly
Lithgow
Randwick
Bondi Beach
Coogee
Cronulla
Leura

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Hanoi to Sydney

See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from Hanoi to Sydney

Discover the top 2 airlines that operate flights from Hanoi to Sydney. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 12 9月 2025.
AirlineCheapestAverageFlexibilityOn-time
VietJet AirCheapest$478Average$731FlexibilityNo cancel feeOn-timeN/A
Search VietJet Air flights
Vietnam AirlinesCheapest$867Average$1,001FlexibilityNo cancel feeOn-time81%
Search Vietnam Airlines flights

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Can Cheapflights notify me if prices for flights from Hanoi to Sydney become cheaper?

Yes! Start tracking prices for Hanoi to Sydney flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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