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Cheap flights from Buffalo to Sydney from $768

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Buffalo to Sydney departing on 4/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Buffalo to Sydney

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
1:45 pm - 7:05 am
BUF
-
SYD
27h 20m
2 stops
American Airlines Logo
12:00 pm - 11:10 pm
SYD
-
BUF
25h 10m
1 stop
$1,420American Airlines
Mon, Jun 1 - Wed, Aug 19
American Airlines Logo
7:00 am - 6:55 am
BUF
-
SYD
33h 55m
1 stop
American Airlines Logo
9:10 am - 9:36 pm
SYD
-
BUF
26h 26m
2 stops
$1,450American Airlines
Mon, May 4 - Mon, May 11
American Airlines Logo
7:00 am - 6:55 am
BUF
-
SYD
33h 55m
1 stop
American Airlines Logo
12:00 pm - 11:19 pm
SYD
-
BUF
25h 19m
1 stop
$1,457American Airlines
Wed, Apr 22 - Mon, May 4
American Airlines Logo
3:01 pm - 7:05 am
BUF
-
SYD
26h 04m
2 stops
American Airlines Logo
12:00 pm - 11:19 pm
SYD
-
BUF
25h 19m
1 stop
$1,469American Airlines
Wed, Apr 22 - Mon, May 4
American Airlines Logo
1:07 pm - 7:05 am
BUF
-
SYD
27h 58m
2 stops
American Airlines Logo
12:00 pm - 12:09 am
SYD
-
BUF
26h 09m
2 stops
$1,470American Airlines
Wed, Aug 5 - Thu, Aug 20
United Airlines Logo
7:00 am - 7:00 am
BUF
-
SYD
34h 00m
3 stops
United Airlines Logo
10:20 am - 9:01 pm
SYD
-
BUF
24h 41m
2 stops
$1,473United Airlines
Wed, Apr 22 - Mon, May 4
United Airlines Logo
7:00 am - 7:00 am
BUF
-
SYD
34h 00m
3 stops
United Airlines Logo
9:30 am - 11:10 pm
SYD
-
BUF
27h 40m
2 stops
$1,474United Airlines
Mon, Apr 13 - Mon, Apr 20
American Airlines Logo
12:28 pm - 7:30 am
BUF
-
SYD
29h 02m
2 stops
American Airlines Logo
9:10 am - 9:36 pm
SYD
-
BUF
26h 26m
2 stops
$1,520American Airlines
Thu, Apr 30 - Thu, May 7
United Airlines Logo
11:02 am - 6:55 am
BUF
-
SYD
29h 53m
3 stops
United Airlines Logo
10:20 am - 11:05 pm
SYD
-
BUF
26h 45m
2 stops
$1,524United Airlines
Thu, Apr 30 - Thu, May 7
American Airlines Logo
1:45 pm - 7:05 am
BUF
-
SYD
27h 20m
2 stops
American Airlines Logo
12:00 pm - 9:24 pm
SYD
-
BUF
23h 24m
2 stops
$1,557American Airlines
Sat, May 2 - Sat, May 9

American Airlines flights from Buffalo to Sydney

Our best American Airlines deals on Buffalo to Sydney flight tickets
American Airlines
May 4
BUF7:00 amBuffalo
33h 55m
1 stop
SYD6:55 amSydney Kingsford Smith
May 11
SYD9:10 amSydney Kingsford Smith
26h 26m
2 stops
BUF9:36 pmBuffalo
$1,450
American Airlines
Apr 22
BUF7:00 amBuffalo
33h 55m
1 stop
SYD6:55 amSydney Kingsford Smith
May 4
SYD12:00 pmSydney Kingsford Smith
25h 19m
1 stop
BUF11:19 pmBuffalo
$1,457
American Airlines
Apr 22
BUF3:01 pmBuffalo
26h 04m
2 stops
SYD7:05 amSydney Kingsford Smith
May 4
SYD12:00 pmSydney Kingsford Smith
25h 19m
1 stop
BUF11:19 pmBuffalo
$1,469

United Airlines flights from Buffalo to Sydney

Our best United Airlines deals on Buffalo to Sydney flight tickets
United Airlines
Apr 22
BUF7:00 amBuffalo
34h 00m
3 stops
SYD7:00 amSydney Kingsford Smith
May 4
SYD10:20 amSydney Kingsford Smith
24h 41m
2 stops
BUF9:01 pmBuffalo
$1,473
United Airlines
Apr 13
BUF7:00 amBuffalo
34h 00m
3 stops
SYD7:00 amSydney Kingsford Smith
Apr 20
SYD9:30 amSydney Kingsford Smith
27h 40m
2 stops
BUF11:10 pmBuffalo
$1,474
United Airlines
May 8
BUF11:02 amBuffalo
29h 53m
3 stops
SYD6:55 amSydney Kingsford Smith
May 12
SYD9:30 amSydney Kingsford Smith
23h 05m
2 stops
BUF6:35 pmBuffalo
$2,262

momondo 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, momondo users made 832,500 searches. Data last updated March 21, 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 round-trip

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

Mon 6/1

1:45 pm-7:05 am

2 stops27h 20m

Sydney Kingsford Smith

Wed 8/19

12:00 pm-11:10 pm

1 stop25h 10m

$1,420

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

Mon 5/4

7:00 am-6:55 am

1 stop33h 55m

Sydney Kingsford Smith

Mon 5/11

9:10 am-9:36 pm

2 stops26h 26m

$1,450

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

Wed 4/22

7:00 am-6:55 am

1 stop33h 55m

Sydney Kingsford Smith

Mon 5/4

12:00 pm-11:19 pm

1 stop25h 19m

$1,457

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

Wed 4/22

3:01 pm-7:05 am

2 stops26h 04m

Sydney Kingsford Smith

Mon 5/4

12:00 pm-11:19 pm

1 stop25h 19m

$1,469

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

Wed 8/5

1:07 pm-7:05 am

2 stops27h 58m

Sydney Kingsford Smith

Thu 8/20

12:00 pm-12:09 am

2 stops26h 09m

$1,470

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

Wed 4/22

7:00 am-7:00 am

3 stops34h 00m

Sydney Kingsford Smith

Mon 5/4

10:20 am-9:01 pm

2 stops24h 41m

$1,473

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

Mon 4/13

7:00 am-7:00 am

3 stops34h 00m

Sydney Kingsford Smith

Mon 4/20

9:30 am-11:10 pm

2 stops27h 40m

$1,474

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

Thu 4/30

12:28 pm-7:30 am

2 stops29h 02m

Sydney Kingsford Smith

Thu 5/7

9:10 am-9:36 pm

2 stops26h 26m

$1,520

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

Thu 4/30

11:02 am-6:55 am

3 stops29h 53m

Sydney Kingsford Smith

Thu 5/7

10:20 am-11:05 pm

2 stops26h 45m

$1,524
Quickest round-trip

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

Sat 5/2

1:45 pm-7:05 am

2 stops27h 20m

Sydney Kingsford Smith

Sat 5/9

12:00 pm-9:24 pm

2 stops23h 24m

$1,557

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Buffalo to Sydney

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Sydney?

In general, February is the cheapest month to fly from Buffalo to Sydney. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $218. If you are unable to visit Sydney during the month of February, then departing from Buffalo during the month December is also very affordable. Most momondo users find prices during this month for around $1,295.

Can stopping save me money on Buffalo to Sydney flights?

You could potentially save up to 4% on your flight if you consider stops on a Buffalo to Sydney flight.

When to book flights from Buffalo to Sydney

Are you open to changing your travel dates? Check out the ideal times to fly from Buffalo to Sydney according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Buffalo to Sydney (BUF to SYD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Buffalo to Sydney

Fastest flight time

25h 45m

Direct flights

None
The fastest flight from Buffalo to Sydney takes 25h 45m
There are no direct flights from Buffalo to Sydney. There are no popular flight routes from Buffalo to Sydney.
Search flight deals

  • How far is Buffalo to Sydney Kingsford Smith by plane?

    The distance between Buffalo and Sydney Kingsford Smith is about 9688.7 mi. Typically, this will take 25h 45m by plane in normal conditions.

  • When did momondo last update prices for flights from Buffalo Airport to Sydney Kingsford Smith Airport?

    Prices for flights from Buffalo Airport to Sydney Kingsford Smith Airport were last updated today.

  • How many operators does momondo search for flights from Buffalo Airport to Sydney Kingsford Smith Airport?

  • How old do you have to be to fly from Buffalo Airport to Sydney Kingsford Smith Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Buffalo Airport to Sydney Kingsford Smith Airport.

  • What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?

    The travel and health documents required for your trip to Sydney Kingsford Smith Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Sydney Kingsford Smith Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from Buffalo to Sydney?

Best airlines flying from Buffalo to Sydney

Compare and see reviews for airlines that fly from Buffalo to Sydney with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $257Free CancellationRating
7.9
8,312 reviews
Search Delta flights
United AirlinesPriceFrom $853Free CancellationRating
7.4
9,452 reviews
Search United Airlines flights
American AirlinesPriceFrom $1,166Free CancellationRating
7.1
11,488 reviews
Search American Airlines flights

Traveling to a place near Sydney?

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

Why use momondo?

Why should I use momondo to find a flight deal from Buffalo to Sydney?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Buffalo to Sydney. momondo saves you time and could save you money on your trip.

Can I find flights from Buffalo to Sydney with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Buffalo to Sydney flights to just show those with flexible booking policies.

How can momondo help me find flights from Buffalo to Sydney?

momondo provides multiple filters to help you find the best flight to Sydney from Buffalo. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Buffalo to Sydney right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Buffalo to Sydney flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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