What is the cheapest airline that flies from Buffalo to Sydney Kingsford Smith?

American Airlines and United Airlines are the most popular carriers operating from Buffalo to Sydney Kingsford Smith

What airlines fly to Sydney?

American Airlines, United Airlines and Delta are the top three most popular airlines that fly to Sydney from Buffalo according to our data. American Airlines is the first choice among our users, with 44% of people opting to fly with this airline when traveling to Sydney. Keep in mind that there are 3 different airlines that fly to Sydney on a routine basis, so you have a few additional options to choose from.

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?

There are 3 operators available for flights from Buffalo Airport to Sydney Kingsford Smith Airport as of November 2025.

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.

$588 Cheap Flights from Buffalo to Sydney in 2025/26

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1:22 pm - 7:05 amBUF-SYD

27h 43m2 stops

9:10 am - 6:04 pmSYD-BUF

22h 54m2 stops

$1,278American Airlines

Find Deal

Sun, May 10 - Sun, May 31

7:00 am - 7:00 amBUF-SYD

34h 00m3 stops

9:30 am - 6:21 pmSYD-BUF

22h 51m2 stops

$1,296United Airlines

Find Deal

Sun, May 10 - Sun, May 31

7:00 am - 10:30 amBUF-SYD

35h 30m2 stops

12:25 pm - 8:51 pmSYD-BUF

47h 26m2 stops

$1,317ANA

Find Deal

Sun, Mar 1 - Tue, Mar 10

6:00 am - 9:00 amBUF-SYD

35h 00m2 stops

5:30 pm - 10:35 pmSYD-BUF

45h 05m2 stops

$1,406American Airlines

Find Deal

Sat, Feb 28 - Wed, Mar 4

11:50 am - 9:00 amBUF-SYD

29h 10m2 stops

11:20 am - 9:06 pmSYD-BUF

25h 46m2 stops

$1,549American Airlines

Find Deal

Mon, Jan 26 - Wed, Feb 4

12:58 pm - 9:00 amBUF-SYD

28h 02m2 stops

2:05 pm - 9:06 pmSYD-BUF

23h 01m1 stop

$1,550American Airlines

Find Deal

Mon, Jan 26 - Wed, Feb 4

1:52 pm - 7:00 amBUF-SYD

25h 08m2 stops

12:10 pm - 11:35 pmSYD-BUF

26h 25m2 stops

$1,566United Airlines

Find Deal

Sun, Mar 1 - Wed, Mar 11

12:09 pm - 6:35 amBUF-SYD

28h 26m2 stops

9:25 am - 11:58 pmSYD-BUF

28h 33m2 stops

$1,588Delta

Find Deal

Wed, Apr 29 - Sun, May 3

7:30 am - 12:00 pmBUF-SYD

36h 30m2 stops

10:20 pm - 11:48 pmSYD-BUF

41h 28m2 stops

$1,618Multiple Airlines

Find Deal

Sun, Jan 11 - Sun, Jan 25

12:25 pm - 8:30 amBUF-SYD

28h 05m2 stops

9:40 am - 11:57 pmSYD-BUF

29h 17m2 stops

$1,657Delta

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Sat, Mar 7 - Tue, Mar 10

Air Canada flights from Buffalo to Sydney

Our best Air Canada deals on Buffalo to Sydney flight tickets

Air Canada

Nov 25

BUF10:50 amBuffalo

30h 45m

2 stops

SYD9:35 amSydney Kingsford Smith

Jan 15

SYD11:20 amSydney Kingsford Smith

25h 09m

2 stops

BUF8:29 pmBuffalo

$2,112

Find similar

Air Canada

Nov 28

BUF7:00 amBuffalo

34h 35m

2 stops

SYD9:35 amSydney Kingsford Smith

Jan 15

SYD4:00 pmSydney Kingsford Smith

44h 29m

2 stops

BUF8:29 pmBuffalo

$2,149

Find similar

Air Canada

Nov 25

BUF7:00 amBuffalo

34h 35m

2 stops

SYD9:35 amSydney Kingsford Smith

Jan 19

SYD11:20 amSydney Kingsford Smith

49h 09m

3 stops

BUF8:29 pmBuffalo

$2,227

Find similar

Delta flights from Buffalo to Sydney

Our best Delta deals on Buffalo to Sydney flight tickets

Delta

Apr 29

BUF12:09 pmBuffalo

28h 26m

2 stops

SYD6:35 amSydney Kingsford Smith

May 3

SYD9:25 amSydney Kingsford Smith

28h 33m

2 stops

BUF11:58 pmBuffalo

$1,588

Find similar

Delta

Mar 7

BUF12:25 pmBuffalo

28h 05m

2 stops

SYD8:30 amSydney Kingsford Smith

Mar 10

SYD9:40 amSydney Kingsford Smith

29h 17m

2 stops

BUF11:57 pmBuffalo

$1,657

Find similar

Delta

Nov 30

BUF12:05 pmBuffalo

28h 25m

2 stops

SYD8:30 amSydney Kingsford Smith

Jan 18

SYD10:40 amSydney Kingsford Smith

29h 36m

2 stops

BUF12:16 amBuffalo

$1,854

Find similar

Fly from

Fly to

Route

Depart

Return

Price

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

Sun 5/10

1:22 pm-7:05 am

2 stops27h 43m

Sydney Kingsford Smith

Sun 5/31

9:10 am-6:04 pm

2 stops22h 54m

$1,278

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

Sun 5/10

7:00 am-7:00 am

3 stops34h 00m

Sydney Kingsford Smith

Sun 5/31

9:30 am-6:21 pm

2 stops22h 51m

$1,296

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

Sun 3/1

7:00 am-10:30 am

2 stops35h 30m

Sydney Kingsford Smith

Tue 3/10

12:25 pm-8:51 pm

2 stops47h 26m

$1,317

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

Sat 2/28

6:00 am-9:00 am

2 stops35h 00m

Sydney Kingsford Smith

Wed 3/4

5:30 pm-10:35 pm

2 stops45h 05m

$1,406

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

Mon 1/26

11:50 am-9:00 am

2 stops29h 10m

Sydney Kingsford Smith

Wed 2/4

11:20 am-9:06 pm

2 stops25h 46m

$1,549

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

Mon 1/26

12:58 pm-9:00 am

2 stops28h 02m

Sydney Kingsford Smith

Wed 2/4

2:05 pm-9:06 pm

1 stop23h 01m

$1,550

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

Sun 3/1

1:52 pm-7:00 am

2 stops25h 08m

Sydney Kingsford Smith

Wed 3/11

12:10 pm-11:35 pm

2 stops26h 25m

$1,566

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

Wed 4/29

12:09 pm-6:35 am

2 stops28h 26m

Sydney Kingsford Smith

Sun 5/3

9:25 am-11:58 pm

2 stops28h 33m

$1,588

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

Sun 1/11

7:30 am-12:00 pm

2 stops36h 30m

Sydney Kingsford Smith

Sun 1/25

10:20 pm-11:48 pm

2 stops41h 28m

$1,618

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

Sat 3/7

12:25 pm-8:30 am

2 stops28h 05m

Sydney Kingsford Smith

Tue 3/10

9:40 am-11:57 pm

2 stops29h 17m

$1,657

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first

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

Prices

Airlines

What is the cheapest month to fly to Sydney?

In general, March 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 $1,411. If you are unable to visit Sydney during the month of March, then departing from Buffalo during the month November is also very affordable. Most momondo users find prices during this month for around $1,417.

What is the cheapest day to depart on your flight to Sydney?

The cheapest day to depart from Buffalo to Sydney is on a Sunday when prices can be found for as low as $1,442. The most expensive day to fly to Sydney is Friday, with ticket prices averaging around $1,762.

What is the cheapest time of day to depart on your flight to Sydney?

According to our data, the cheapest time of day to fly to Sydney is in the evening. momondo users have found flights departing from Buffalo to Sydney in the evening for as low as $751. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Sydney are more costly in the morning, with an average ticket price of $1,682. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

Can stopping save me money on Buffalo to Sydney flights?

You could potentially save up to 2% 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

Direct flights	None

There are no direct flights from Buffalo to Sydney. There are no popular flight routes from Buffalo to Sydney.

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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 24h 35m 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?
There are 3 operators available for flights from Buffalo Airport to Sydney Kingsford Smith Airport as of November 2025.
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?
Based on momondo bookings for flights between Buffalo and Sydney, the leading airline is American Airlines, making up 41% of the total bookings. Other popular airlines include United Airlines with 30% and Delta with 28%.

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
Delta	PriceFrom $276	Free Cancellation	Rating 7.9 8,002 reviews	Search Delta flights
American Airlines	PriceFrom $1,166	Free Cancellation	Rating 7.2 11,047 reviews	Search American Airlines flights
United Airlines	PriceFrom $1,193	Free Cancellation	Rating 7.4 9,029 reviews	Search United Airlines flights

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Wollongong

Randwick

Coogee

Cronulla

Manly

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Charlestown

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Swansea

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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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Cheap flights from Buffalo to Sydney from $731

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 3/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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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?

What is the cheapest day to depart on your flight to Sydney?

The cheapest day to depart from Buffalo to Sydney is on a Sunday when prices can be found for as low as $1,442. The most expensive day to fly to Sydney is Friday, with ticket prices averaging around $1,762.

What is the cheapest time of day to depart on your flight to Sydney?

Can stopping save me money on Buffalo to Sydney flights?

You could potentially save up to 2% on your flight if you consider stops on a Buffalo to Sydney flight.

What is the cheapest airline that flies from Buffalo to Sydney Kingsford Smith?

American Airlines and United Airlines are the most popular carriers operating from Buffalo to Sydney Kingsford Smith

What airlines fly to Sydney?

When to book flights from Buffalo to Sydney

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

Direct flights

How far is Buffalo to Sydney Kingsford Smith by plane?

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

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?

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

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

Traveling to a place near Sydney?

Why use momondo?

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

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

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

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

An easier way to manage your Sydney trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Australia

Airports servicing New South Wales