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Cheap flights from Buffalo to Sydney from $1,133

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 28/7. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — SYD
24 May — 31 May1
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 24 April 2026.

Sun 7/615:00
BUF
-
SYD
2 stops26h 00m
United Airlines
Sun 14/609:30
SYD
-
BUF
2 stops25h 33m
United Airlines
Deal found 23/4$1,881
Mon 27/406:05
BUF
-
SYD
2 stops34h 45m
Delta
Sun 10/509:15
SYD
-
BUF
2 stops28h 44m
Delta
Deal found 23/4$1,882
Sat 23/507:00
BUF
-
SYD
3 stops34h 00m
United Airlines
Sat 30/509:30
SYD
-
BUF
2 stops25h 33m
United Airlines
Deal found 23/4$2,032
Thu 4/606:25
BUF
-
SYD
2 stops34h 25m
Delta
Thu 11/609:15
SYD
-
BUF
2 stops28h 44m
Delta
Deal found 20/4$2,033
Sat 31/1012:50
BUF
-
SYD
2 stops27h 40m
Delta
Sun 15/1110:40
SYD
-
BUF
2 stops37h 49m
Delta
Deal found 19/4$2,061
Sun 7/616:46
BUF
-
SYD
1 stop24h 09m
American Airlines
Sun 14/609:10
SYD
-
BUF
2 stops27h 26m
American Airlines
Deal found 23/4$2,197
Tue 2/610:50
BUF
-
SYD
2 stops40h 00m
Etihad Airways
Sat 27/621:30
SYD
-
BUF
2 stops40h 18m
Etihad Airways
Deal found 21/4$2,295
Sat 6/616:46
BUF
-
SYD
1 stop24h 09m
American Airlines
Sat 13/612:00
SYD
-
BUF
1 stop24h 36m
American Airlines
Deal found 22/4$2,333
Sat 23/513:45
BUF
-
SYD
2 stops27h 20m
American Airlines
Sat 30/512:00
SYD
-
BUF
1 stop24h 36m
American Airlines
Deal found 23/4$2,337
Sat 31/1016:50
BUF
-
SYD
1 stop23h 05m
American Airlines
Sun 15/1114:05
SYD
-
BUF
1 stop24h 36m
American Airlines
Deal found 19/4$2,389

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 24 April 2026.

Round-trip from

$1,881

One-way from

$1,133

Popular in

April

Cheapest in

February

Average price

$2,685
United Airlines
  • United Airlines
  • 7/6-14/6
  • 4 total stops
  • 51h 33m total
  • Buffalo to Sydney
Search Deals
United Airlines
  • United Airlines
  • 28/7
  • 3 total stops
  • 34h 00m total
  • Buffalo to Sydney
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($489 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($101 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 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 24 April 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

Sun 7/6

15:00-07:00

2 stops26h 00m

Sydney Kingsford Smith

Sun 14/6

09:30-21:03

2 stops25h 33m

$1,881

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

Sat 6/6

13:54-07:00

2 stops27h 06m

Sydney Kingsford Smith

Sat 13/6

09:30-09:51

2 stops38h 21m

$2,032

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

Sat 23/5

07:00-07:00

3 stops34h 00m

Sydney Kingsford Smith

Sat 30/5

09:30-21:03

2 stops25h 33m

$2,032

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

Thu 4/6

06:25-06:50

2 stops34h 25m

Sydney Kingsford Smith

Thu 11/6

09:15-23:59

2 stops28h 44m

$2,033

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

Thu 21/5

13:54-06:55

2 stops27h 01m

Sydney Kingsford Smith

Thu 28/5

10:20-19:03

2 stops22h 43m

$2,033

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

Sun 7/6

16:46-06:55

1 stop24h 09m

Sydney Kingsford Smith

Sun 14/6

09:10-22:36

2 stops27h 26m

$2,197

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

Tue 2/6

10:50-16:50

2 stops40h 00m

Sydney Kingsford Smith

Sat 27/6

21:30-23:48

2 stops40h 18m

$2,295

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

Tue 2/6

07:00-07:00

3 stops34h 00m

Sydney Kingsford Smith

Sat 27/6

10:20-22:58

2 stops50h 38m

$2,491

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

Sun 10/5

11:02-06:55

3 stops29h 53m

Sydney Kingsford Smith

Sat 16/5

10:20-21:01

2 stops24h 41m

$3,311
Fastest return journey

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

Thu 4/6

16:46-06:55

1 stop24h 09m

Sydney Kingsford Smith

Thu 11/6

12:00-22:36

1 stop24h 36m

$3,812

Flights are sorted by cheapest return flights first.

Deals found on 23/4

Showing 1-10 of 14 resultsSorted by cheapest first
1
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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 $305). Flying from Buffalo to Sydney in April is currently the most expensive (average of $2,685). 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.

How much does it cost for a return flight from Buffalo to Sydney?

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 $1,881, United Airlines can have you in Sydney from Buffalo in 26h. Airlines will cover a distance of 15611 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • 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 $305). Flying from Buffalo to Sydney in April is currently the most expensive (average of $2,685). 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
Terrigal
Lithgow
Cronulla
Manly
Bondi Beach
Leura
Randwick
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

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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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