Cheap flights from Hanoi to Sydney from $260

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 13/9. Fares are subject to change and may not be available on all flights or dates of travel.
HAN — SYD
2 Sep — 9 Sep1
1 adult

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

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 28 August 2025.

Round-trip from

$558

One-way from

$260

Popular in

January

Cheapest in

May

Average price

$844

Good round-trip deal

$591 or less

Good one-way deal

$376 or less
VietJet Air
  • VietJet Air
  • 19/10-27/10
  • 2 total stops
  • 33h 25m total
  • Hanoi to Sydney
13/9
  • 13/9
  • 1 total stop
  • 13h 20m total
  • Hanoi to Sydney
Highest demand for flights based on searches. 17% potential increase in price ($298 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease ($49 potential savings vs. average return price).
Average for round-trip flights in August 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 28 August 2025.

Sat 6/917:05HAN - SYD
Nonstop10h 05mVietJet Air
Wed 17/910:15SYD - HAN
1 stop14h 55mVietJet Air
Deal found 27/8$548
Fri 24/1014:45HAN - SYD
1 stop13h 35mVietJet Air
Mon 27/1011:15SYD - HAN
1 stop15h 35mVietJet Air
Deal found 25/8$556
Sat 6/917:05HAN - SYD
Nonstop10h 05mVietJet Air
Fri 19/910:15SYD - HAN
1 stop14h 35mVietJet Air
Deal found 27/8$561
Sun 19/1010:15HAN - SYD
1 stop18h 05mVietJet Air
Mon 27/1011:15SYD - HAN
1 stop15h 20mVietJet Air
Deal found 26/8$565
Sat 6/917:05HAN - SYD
Nonstop10h 05mVietJet Air
Mon 15/910:15SYD - HAN
1 stop14h 35mVietJet Air
Deal found 27/8$567
Tue 4/1112:55HAN - SYD
1 stop15h 10mVietJet Air
Tue 11/1111:15SYD - HAN
1 stop18h 10mVietJet Air
Deal found 27/8$568
Mon 20/1014:45HAN - SYD
1 stop13h 35mVietJet Air
Fri 31/1011:15SYD - HAN
1 stop15h 20mVietJet Air
Deal found 26/8$581
Thu 13/1109:00HAN - SYD
1 stop20h 15mMultiple Airlines
Wed 19/1111:15SYD - HAN
1 stop18h 10mMultiple Airlines
Deal found 25/8$599
Thu 4/915:30HAN - SYD
1 stop13h 20mMultiple Airlines
Wed 17/910:15SYD - HAN
1 stop14h 35mMultiple Airlines
Deal found 27/8$601
Thu 4/915:30HAN - SYD
1 stop13h 20mMultiple Airlines
Mon 15/910:15SYD - HAN
1 stop14h 35mMultiple Airlines
Deal found 27/8$607
Mon 8/915:30HAN - SYD
1 stop25h 30mMultiple Airlines
Wed 17/910:15SYD - HAN
1 stop14h 35mMultiple Airlines
Deal found 27/8$610
Thu 23/1010:15HAN - SYD
1 stop18h 05mMultiple Airlines
Thu 30/1020:05SYD - HAN
1 stop16h 40mMultiple Airlines
Deal found 24/8$615

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 28 August 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

Sun 19/10

10:15-08:20

1 stop18h 05m

Sydney Kingsford Smith

Mon 27/10

11:15-22:35

1 stop15h 20m

$558

HanoiSydney

HAN - SYD

HANSYD

Hanoi Noibai

Sat 25/10

23:10-13:05

2 stops33h 55m

Sydney Kingsford Smith

Wed 29/10

11:15-01:25

1 stop18h 10m

$564

HanoiSydney

HAN - SYD

HANSYD

Hanoi Noibai

Tue 4/11

12:55-08:05

1 stop15h 10m

Sydney Kingsford Smith

Tue 11/11

11:15-01:25

1 stop18h 10m

$568

HanoiSydney

HAN - SYD

HANSYD

Hanoi Noibai

Sun 19/10

10:15-08:20

1 stop18h 05m

Sydney Kingsford Smith

Sat 25/10

11:15-22:10

1 stop14h 55m

$579

HanoiSydney

HAN - SYD

HANSYD

Hanoi Noibai

Mon 20/10

14:45-08:20

1 stop13h 35m

Sydney Kingsford Smith

Fri 31/10

11:15-22:35

1 stop15h 20m

$581

HanoiSydney

HAN - SYD

HANSYD

Hanoi Noibai

Mon 8/9

15:30-20:00

1 stop25h 30m

Sydney Kingsford Smith

Wed 17/9

10:15-21:50

1 stop14h 35m

$610

HanoiSydney

HAN - SYD

HANSYD

Hanoi Noibai

Mon 8/9

15:30-20:00

1 stop25h 30m

Sydney Kingsford Smith

Tue 16/9

10:15-22:10

1 stop14h 55m

$610

HanoiSydney

HAN - SYD

HANSYD

Hanoi Noibai

Mon 8/9

15:30-20:00

1 stop25h 30m

Sydney Kingsford Smith

Fri 19/9

10:15-21:50

1 stop14h 35m

$610

HanoiSydney

HAN - SYD

HANSYD

Hanoi Noibai

Mon 8/9

15:30-20:00

1 stop25h 30m

Sydney Kingsford Smith

Mon 15/9

10:15-21:50

1 stop14h 35m

$616

HanoiSydney

HAN - SYD

HANSYD

Hanoi Noibai

Sun 7/9

18:15-10:10

1 stop12h 55m

Sydney Kingsford Smith

Tue 16/9

10:15-22:10

1 stop14h 55m

$633

Flights are sorted by cheapest return flights first.

Deals found on 26/8

Showing 1-10 of 21 results
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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 22 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 28 August 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 39% 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 Thursday 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 28 August 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.

Overall

7.6

Food

6.8

Comfort

7.6

Crew

8.1

Entertainment

6.3

Boarding

7.5

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.

Overall

7.6

Food

6.8

Comfort

7.6

Crew

8.1

Entertainment

6.3

Boarding

7.5

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.

Overall

7.6

Food

6.8

Comfort

7.6

Crew

8.1

Entertainment

6.3

Boarding

7.5

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.
  • 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 18h 05m. Airlines will cover a distance of 7783 km.

  • 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 $505. Another option worth looking into is Vietnam Airlines, starting at $885 round trip. VietJet Air is currently priced 44% below the average price you’ll pay for this route.

  • 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 (44%), Vietnam Airlines (29%) and Cambodia Angkor Air (29%).

  • What are the cheapest flights from Hanoi to Sydney?

    On average you can expect to pay $863 for a flight from Hanoi to Sydney. The cheapest flight overall is $238 while the most popular route, (Hanoi Noibai - Sydney Kingsford Smith) is currently priced at $558.

  • 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
Coogee
Terrigal
Cronulla
Manly
Lithgow
Randwick
Bondi Beach
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 28 August 2025.
AirlineCheapestAverageFlexibilityOn-time
VietJet AirCheapest$505Average$790FlexibilityNo cancel feeOn-timeN/A
Search VietJet Air flights
Vietnam AirlinesCheapest$885Average$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?

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