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Cheap flights from Buffalo to Sydney from $1,128

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 21/8. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — SYD
18 Jul — 25 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Buffalo to Sydney

Enter your travel dates to find the best prices.

Cheapest flights from Buffalo to Sydney
Explore the most affordable flight options available from Buffalo to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 June 2026.

Wed 29/710:57
BUF
-
SYD
2 stops30h 03m
United Airlines
Tue 18/810:20
SYD
-
BUF
2 stops26h 17m
United Airlines
Deal found 18/6$1,649
Fri 30/1011:46
BUF
-
SYD
2 stops27h 39m
Multiple Airlines
Tue 17/1119:40
SYD
-
BUF
3 stops29h 57m
Multiple Airlines
Deal found 18/6$1,659
Tue 4/818:04
BUF
-
SYD
2 stops46h 56m
United Airlines
Mon 17/809:30
SYD
-
BUF
2 stops25h 37m
United Airlines
Deal found 18/6$1,671
Mon 31/806:55
BUF
-
SYD
1 stop34h 00m
Air New Zealand
Mon 14/910:20
SYD
-
BUF
2 stops24h 47m
Air New Zealand
Deal found 18/6$1,704
Thu 30/713:54
BUF
-
SYD
2 stops27h 06m
United Airlines
Sun 16/810:20
SYD
-
BUF
2 stops24h 51m
United Airlines
Deal found 18/6$1,720
Tue 4/818:04
BUF
-
SYD
2 stops46h 56m
United Airlines
Sat 15/809:30
SYD
-
BUF
2 stops25h 37m
United Airlines
Deal found 18/6$1,742
Thu 30/713:54
BUF
-
SYD
2 stops27h 06m
United Airlines
Thu 13/809:30
SYD
-
BUF
2 stops25h 37m
United Airlines
Deal found 18/6$1,790
Tue 14/713:57
BUF
-
SYD
2 stops26h 28m
American Airlines
Tue 21/709:10
SYD
-
BUF
2 stops27h 40m
American Airlines
Deal found 17/6$1,856
Mon 14/915:53
BUF
-
SYD
2 stops24h 57m
Delta
Wed 23/909:15
SYD
-
BUF
2 stops28h 57m
Delta
Deal found 18/6$1,861
Mon 31/816:50
BUF
-
SYD
1 stop24h 05m
Qantas Airways
Mon 14/912:00
SYD
-
BUF
1 stop24h 59m
Qantas Airways
Deal found 18/6$1,887

Find flight deals from Buffalo to Sydney

Discover tips and strategies to find the most affordable flight options for your journey from Buffalo (BUF) 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 18 June 2026.

Round-trip from

$1,649

One-way from

$1,128

Popular in

May

Cheapest in

February

Average price

$1,660
United Airlines
  • United Airlines
  • 29/7-19/8
  • 4 total stops
  • 57h 05m total
  • Buffalo to Sydney
Search Deals
United Airlines
  • United Airlines
  • 21/8
  • 2 total stops
  • 30h 25m total
  • Buffalo to Sydney
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($143 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($58 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Buffalo 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 18 June 2026.
Use the filters below to find and compare flights from Buffalo to Sydney that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

Fri 30/10

11:46-06:25

2 stops27h 39m

Sydney Kingsford Smith

Tue 17/11

19:40-09:37

3 stops29h 57m

$1,856
Fastest return journey

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

Wed 15/7

10:57-07:00

2 stops30h 03m

Sydney Kingsford Smith

Wed 22/7

09:30-22:31

2 stops27h 01m

$2,158

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

Fri 31/7

18:04-07:00

2 stops46h 56m

Sydney Kingsford Smith

Sat 15/8

09:30-21:07

2 stops25h 37m

$2,244

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

Thu 9/7

09:00-07:00

2 stops56h 00m

Sydney Kingsford Smith

Mon 31/8

10:20-22:37

2 stops50h 17m

$2,472

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

Wed 2/9

16:38-06:10

2 stops47h 32m

Sydney Kingsford Smith

Sun 6/9

20:45-21:48

2 stops39h 03m

$2,620

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

Wed 2/9

10:30-06:20

2 stops29h 50m

Sydney Kingsford Smith

Sun 6/9

08:55-17:04

2 stops46h 09m

$2,759

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

Wed 2/9

15:52-19:10

3 stops37h 18m

Sydney Kingsford Smith

Sun 6/9

21:05-14:57

3 stops55h 52m

$2,852

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

Sun 12/7

06:00-16:50

2 stops44h 50m

Sydney Kingsford Smith

Sat 18/7

20:50-00:25

2 stops41h 35m

$2,886

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

Mon 3/8

06:40-19:10

3 stops70h 30m

Sydney Kingsford Smith

Sun 16/8

21:05-07:50

3 stops48h 45m

$2,910

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

Sun 2/8

06:40-19:10

3 stops70h 30m

Sydney Kingsford Smith

Sun 16/8

21:05-07:50

3 stops48h 45m

$3,038

Flights are sorted by cheapest return flights first.

Deals found on 15/6

Showing 1-10 of 21 resultsSorted by cheapest first
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Best time to book a flight from Buffalo to Sydney

Have a flexible travel schedule? Discover the best time to fly to Sydney from Buffalo 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 Buffalo to Sydney

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

Currently, February is the cheapest month in which you can book a flight from Buffalo to Sydney (average of $309). Flying from Buffalo to Sydney in May is currently the most expensive (average of $2,336). 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.

Related info for your journey

Find useful and relevant information for your journey from Buffalo to Sydney. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Buffalo to Sydney?

    For as low as $2,158, United Airlines can have you in Sydney from Buffalo in 30h 03m. Airlines will cover a distance of 15611 km.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Buffalo 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 Buffalo to Sydney?

    Currently, February is the cheapest month in which you can book a flight from Buffalo to Sydney (average of $309). Flying from Buffalo to Sydney in May is currently the most expensive (average of $2,336). 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
Penrith
Katoomba
Cronulla
Manly
Terrigal
Lithgow
Randwick
Bondi Beach
Leura
Coogee

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Buffalo to Sydney

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

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Buffalo to Sydney?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Sydney from Buffalo today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Buffalo to Sydney?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Buffalo to Sydney for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Buffalo to Sydney with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Buffalo to Sydney, users can toggle the no change fees filter when performing a flight search.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Sydney from Buffalo today and book when prices fit your budget.

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