Cheap flights from Buffalo to Sydney from $1,090

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 15/4. 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

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Cheap return flights

Enter your travel dates to find the best prices.
American Airlines Logo
13:45 - 07:30
BUF
-
SYD
27h 45m
2 stops
American Airlines Logo
09:10 - 22:34
SYD
-
BUF
27h 24m
2 stops
$2,034American Airlines
Mon, 1 Jun - Wed, 19 Aug
United Airlines Logo
13:54 - 07:00
BUF
-
SYD
27h 06m
2 stops
United Airlines Logo
10:20 - 18:54
SYD
-
BUF
22h 34m
2 stops
$2,039United Airlines
Mon, 1 Jun - Wed, 19 Aug
American Airlines Logo
07:00 - 06:55
BUF
-
SYD
33h 55m
1 stop
American Airlines Logo
12:00 - 23:19
SYD
-
BUF
25h 19m
1 stop
$2,042American Airlines
Mon, 27 Apr - Mon, 4 May
United Airlines Logo
07:00 - 06:55
BUF
-
SYD
33h 55m
2 stops
United Airlines Logo
10:20 - 20:41
SYD
-
BUF
24h 21m
2 stops
$2,240United Airlines
Sun, 12 Jul - Fri, 24 Jul
Delta Logo
11:15 - 06:50
BUF
-
SYD
29h 35m
2 stops
Delta Logo
09:15 - 23:56
SYD
-
BUF
28h 41m
2 stops
$2,241Delta
Mon, 13 Jul - Sat, 25 Jul
Delta Logo
11:15 - 06:50
BUF
-
SYD
29h 35m
2 stops
Delta Logo
09:15 - 18:41
SYD
-
BUF
23h 26m
2 stops
$2,267Delta
Mon, 13 Jul - Wed, 22 Jul
Qantas Airways Logo
07:00 - 06:55
BUF
-
SYD
33h 55m
1 stop
Qantas Airways Logo
12:00 - 22:36
SYD
-
BUF
24h 36m
1 stop
$2,308Qantas Airways
Tue, 5 May - Fri, 29 May
Delta Logo
11:15 - 06:50
BUF
-
SYD
29h 35m
2 stops
Delta Logo
09:15 - 18:41
SYD
-
BUF
23h 26m
2 stops
$2,339Delta
Mon, 13 Jul - Thu, 23 Jul
United Airlines Logo
14:45 - 07:00
BUF
-
SYD
26h 15m
2 stops
United Airlines Logo
09:30 - 21:03
SYD
-
BUF
25h 33m
2 stops
$2,361United Airlines
Tue, 5 May - Fri, 29 May
United Airlines Logo
11:02 - 06:55
BUF
-
SYD
29h 53m
3 stops
United Airlines Logo
10:20 - 19:03
SYD
-
BUF
22h 43m
2 stops
$2,380United Airlines
Tue, 5 May - Fri, 29 May

Delta flights from Buffalo to Sydney

Our best Delta deals on Buffalo to Sydney flight tickets
Delta
13 July
BUF11:15Buffalo
29h 35m
2 stops
SYD06:50Sydney Kingsford Smith
25 July
SYD09:15Sydney Kingsford Smith
28h 41m
2 stops
BUF23:56Buffalo
$2,241
Delta
13 July
BUF11:15Buffalo
29h 35m
2 stops
SYD06:50Sydney Kingsford Smith
22 July
SYD09:15Sydney Kingsford Smith
23h 26m
2 stops
BUF18:41Buffalo
$2,267
Delta
13 July
BUF11:15Buffalo
29h 35m
2 stops
SYD06:50Sydney Kingsford Smith
23 July
SYD09:15Sydney Kingsford Smith
23h 26m
2 stops
BUF18:41Buffalo
$2,339

United Airlines flights from Buffalo to Sydney

Our best United Airlines deals on Buffalo to Sydney flight tickets
United Airlines
1 June
BUF13:54Buffalo
27h 06m
2 stops
SYD07:00Sydney Kingsford Smith
19 Aug
SYD10:20Sydney Kingsford Smith
22h 34m
2 stops
BUF18:54Buffalo
$2,039
United Airlines
12 July
BUF06:00Buffalo
34h 55m
2 stops
SYD06:55Sydney Kingsford Smith
19 July
SYD10:20Sydney Kingsford Smith
27h 39m
2 stops
BUF23:59Buffalo
$2,240
United Airlines
5 May
BUF14:45Buffalo
26h 15m
2 stops
SYD07:00Sydney Kingsford Smith
29 May
SYD09:30Sydney Kingsford Smith
25h 33m
2 stops
BUF21:03Buffalo
$2,361

momondo 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, momondo users made 78,305 searches. Data last updated 14 March 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

Mon 1/6

13:45-07:30

2 stops27h 45m

Sydney Kingsford Smith

Wed 19/8

09:10-22:34

2 stops27h 24m

$2,034
Fastest return journey

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

Mon 1/6

13:54-07:00

2 stops27h 06m

Sydney Kingsford Smith

Wed 19/8

10:20-18:54

2 stops22h 34m

$2,039

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

Mon 27/4

07:00-06:55

1 stop33h 55m

Sydney Kingsford Smith

Mon 4/5

12:00-23:19

1 stop25h 19m

$2,042

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

Sun 12/7

07:00-06:55

2 stops33h 55m

Sydney Kingsford Smith

Fri 24/7

10:20-20:41

2 stops24h 21m

$2,240

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

Mon 13/7

11:15-06:50

2 stops29h 35m

Sydney Kingsford Smith

Sat 25/7

09:15-23:56

2 stops28h 41m

$2,241

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

Mon 13/7

11:15-06:50

2 stops29h 35m

Sydney Kingsford Smith

Wed 22/7

09:15-18:41

2 stops23h 26m

$2,267

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

Tue 5/5

07:00-06:55

1 stop33h 55m

Sydney Kingsford Smith

Fri 29/5

12:00-22:36

1 stop24h 36m

$2,308

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

Mon 13/7

11:15-06:50

2 stops29h 35m

Sydney Kingsford Smith

Thu 23/7

09:15-18:41

2 stops23h 26m

$2,339

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

Tue 5/5

14:45-07:00

2 stops26h 15m

Sydney Kingsford Smith

Fri 29/5

09:30-21:03

2 stops25h 33m

$2,361

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

Tue 5/5

11:02-06:55

3 stops29h 53m

Sydney Kingsford Smith

Fri 29/5

10:20-19:03

2 stops22h 43m

$2,380

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Sydney from

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 typical price of a round-trip flight between Buffalo and Sydney?

What is the cheapest month to fly to Sydney?

The month of February is, on average, the cheapest month to fly to Sydney from Buffalo, with most prices found around $312. If you aren’t able to travel to Sydney during the month of February, then flying in December is also cheap. Prices for this month can be found on momondo for an average of $1,855.

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

    There are 15592.4 km between Buffalo and Sydney Kingsford Smith. Flights usually cover this in 25h 45m, depending on flying conditions and air traffic around both airports.

  • 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 are refreshed on a daily basis.

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Buffalo Airport to Sydney Kingsford Smith Airport.

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

    The necessary travel and health documents for your Sydney Kingsford Smith Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Travelling to a place near Sydney?

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

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Sydney from Buffalo.

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

momondo does allow users to show only those flights to Sydney from Buffalo which offer a flexible booking policy as well as other useful filters and features.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Sydney from Buffalo.

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

If you are simply researching potential flights to Sydney, momondo offers a useful price alert feature which will track prices for flights to Sydney from Buffalo and alert you when they change.

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1 adult
Mon 13/4
Mon 20/4

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