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$636+ Cheap flights from Buffalo (BUF) to Sydney (SYD)

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 2/28. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — SYD
Feb 26 — Mar 51
Thu 2/26
Thu 3/5
1 adult, Economy
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Cheap flight deals from Buffalo to Sydney

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 January 27, 2026.

This Ovago deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/197:00 am
BUF
-
SYD
2 stops36h 25m
ANA
Mon 4/278:55 pm
SYD
-
BUF
2 stops37h 48m
ANA
Deal found 1/27$1,176
This American Airlines deal was found by Cheapflights users on 1/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/36:53 am
BUF
-
SYD
1 stop32h 02m
American Airlines
Tue 2/172:05 pm
SYD
-
BUF
1 stop24h 36m
American Airlines
Deal found 1/25$1,451
This American Airlines deal was found by Cheapflights users on 1/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/116:34 am
BUF
-
SYD
1 stop33h 21m
American Airlines
Wed 3/181:05 pm
SYD
-
BUF
1 stop24h 36m
American Airlines
Deal found 1/25$1,461
This American Airlines deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/197:00 am
BUF
-
SYD
1 stop33h 55m
American Airlines
Mon 4/2712:00 pm
SYD
-
BUF
1 stop25h 19m
American Airlines
Deal found 1/27$1,462
This United Airlines deal was found by Cheapflights users on 1/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/288:25 am
BUF
-
SYD
2 stops53h 55m
United Airlines
Mon 3/3010:30 am
SYD
-
BUF
2 stops27h 40m
United Airlines
Deal found 1/25$1,470
This Delta deal was found by Cheapflights users on 1/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/112:13 pm
BUF
-
SYD
2 stops28h 17m
Delta
Wed 2/1810:40 am
SYD
-
BUF
2 stops39h 07m
Delta
Deal found 1/24$1,471
This United Airlines deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/197:00 am
BUF
-
SYD
3 stops34h 00m
United Airlines
Mon 4/2710:20 am
SYD
-
BUF
2 stops22h 29m
United Airlines
Deal found 1/27$1,473
This KAYAK deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/17:00 am
BUF
-
SYD
2 stops36h 25m
ANA
Wed 9/168:55 pm
SYD
-
BUF
2 stops37h 36m
ANA
Deal found 1/26$1,479

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 January 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,176
(Ovago)

One-way from

$636
(Trip.com)

Popular in

April

Cheapest in

February

Average price

$1,498
Provider with most accurate pricing for Buffalo-Sydney Kingsford Smith flight deals.
Search Deals
Provider most trusted by Cheapflights users for Buffalo-Sydney Kingsford Smith flights.
Search Deals
From Buffalo to Sydney Kingsford Smith
Search Deals
One-way flight from Buffalo to Sydney Kingsford Smith
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($276 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($47 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated January 27, 2026.
Use the filters below to find and compare flights from Buffalo to Sydney that are best for you.

Fly from

Buffalo

Fly to

Sydney

Route

Depart

Return

Price

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

Sun 4/19

7:00 am-9:25 am

2 stops36h 25m

Sydney Kingsford Smith

Mon 4/27

8:55 pm-8:43 pm

2 stops37h 48m

$1,176

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

Tue 3/3

6:30 am-6:55 am

1 stop32h 25m

Sydney Kingsford Smith

Tue 3/17

1:05 pm-10:41 pm

1 stop24h 36m

$1,451

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

Tue 2/3

12:38 pm-9:00 am

2 stops28h 22m

Sydney Kingsford Smith

Tue 2/17

11:20 am-10:41 pm

2 stops27h 21m

$1,455

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

Sun 4/19

11:36 am-7:05 am

2 stops29h 29m

Sydney Kingsford Smith

Mon 4/27

12:00 pm-11:19 pm

1 stop25h 19m

$1,456

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

Wed 2/25

10:00 am-6:20 am

2 stops28h 20m

Sydney Kingsford Smith

Tue 3/10

10:25 am-6:42 pm

2 stops23h 17m

$1,471

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

Sun 2/1

6:00 am-6:50 am

2 stops32h 50m

Sydney Kingsford Smith

Tue 2/17

10:40 am-10:57 pm

2 stops28h 17m

$1,471

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

Tue 2/24

2:54 pm-9:15 am

2 stops26h 21m

Sydney Kingsford Smith

Mon 3/9

11:50 am-11:42 pm

2 stops26h 52m

$1,471

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

Tue 2/24

8:25 am-7:00 am

2 stops30h 35m

Sydney Kingsford Smith

Sun 3/8

10:20 am-5:42 pm

2 stops23h 22m

$1,471

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

Sat 2/28

10:25 am-10:05 pm

3 stops43h 40m

$636

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

Tue 3/3

1:55 pm-9:00 am

2 stops51h 05m

$743

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/25

Showing 1-10 of 14 results
1
2

Compare providers for flights from Buffalo to Sydney

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Buffalo to Sydney in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars
CheapfaremartPrice Accuracy-Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Buffalo-Sydney flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Buffalo-Sydney flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Buffalo-Sydney flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Buffalo-Sydney flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Buffalo-Sydney flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 round-trip 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 $196). Flying from Buffalo to Sydney in May is currently the most expensive (average of $1,594). 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 to fly round-trip from Buffalo to Sydney?

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 January 27, 2026.
See what other customers who have flown with Delta, United Airlines, and American Airlines from Buffalo to Sydney have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,119 reviews

Overall

7.9

Comfort

7.9

Crew

8.5

Food

7.2

Boarding

8.1

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.
Delta
7.9
Good
8,119 reviews
Delta
7.9
Good
8,119 reviews

Overall

7.9

Comfort

7.9

Crew

8.5

Food

7.2

Boarding

8.1

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.
United Airlines
7.4
Good
9,205 reviews
Delta
7.9
Good
8,119 reviews

Overall

7.9

Comfort

7.9

Crew

8.5

Food

7.2

Boarding

8.1

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.
American Airlines
7.2
Good
11,197 reviews
Delta
7.9
Good
8,119 reviews

Overall

7.9

Comfort

7.9

Crew

8.5

Food

7.2

Boarding

8.1

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.

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?

    There are many flights that can get you from Buffalo to Sydney in 32h 25m. Fly via ANA or American Airlines to get the fastest option. There are 9700 mi between Buffalo and Sydney. This flight may include one or multiple stops.

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

    Flying on Delta is currently your cheapest option to Sydney, with prices starting at $257. Additional round-trip tickets that might be worth considering are offered by American Airlines and United Airlines, with the lowest prices starting at $1,166 and $1,280, respectively. These flights start at 81% lower than the current average price 3 months from now.

  • 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 vacation 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 $196). Flying from Buffalo to Sydney in May is currently the most expensive (average of $1,594). 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

Traveling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Parramatta
Wollongong
Manly

Browse thousands of different options on Cheapflights for your next trip

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Top 3 airlines flying from Buffalo to Sydney

Discover the top 3 airlines that operate flights from Buffalo 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 2,558,603 searches. Data last updated January 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$257Average$1,919FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$1,166Average$1,695FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$1,280Average$1,641FlexibilityNo cancel feeOn-time69%

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