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

Delta and American 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 49% 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 December 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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6:53 am - 6:55 am

BUF

SYD

32h 02m1 stop

2:05 pm - 10:34 pm

SYD

BUF

24h 29m1 stop

$1,197American Airlines

Mon, Feb 9 - Sun, Feb 22

12:58 pm - 9:00 am

BUF

SYD

28h 02m2 stops

2:05 pm - 10:34 pm

SYD

BUF

24h 29m1 stop

$1,201American Airlines

Mon, Feb 9 - Sun, Feb 22

8:30 am - 9:05 am

BUF

SYD

32h 35m2 stops

2:00 pm - 2:14 pm

SYD

BUF

40h 14m2 stops

$1,397United Airlines

Thu, Jan 15 - Fri, Jan 30

10:33 am - 8:30 am

BUF

SYD

29h 57m2 stops

10:40 am - 10:57 pm

SYD

BUF

28h 17m2 stops

$1,590Delta

Sun, Jan 25 - Sun, Feb 1

1:59 pm - 7:00 am

BUF

SYD

25h 01m2 stops

11:20 am - 8:29 pm

SYD

BUF

25h 09m2 stops

$1,713United Airlines

Sun, Jan 25 - Sun, Feb 1

8:30 am - 9:35 am

BUF

SYD

57h 05m3 stops

11:20 am - 8:29 pm

SYD

BUF

25h 09m2 stops

$1,773Air Canada

Sat, Feb 7 - Wed, Feb 11

8:30 am - 9:35 am

BUF

SYD

57h 05m3 stops

11:20 am - 8:29 pm

SYD

BUF

25h 09m2 stops

$1,844Air Canada

Sat, Feb 7 - Wed, Feb 11

7:30 am - 12:00 pm

BUF

SYD

36h 30m2 stops

10:20 pm - 11:48 pm

SYD

BUF

41h 28m2 stops

$1,848Multiple Airlines

Sun, Jan 11 - Sun, Jan 25

11:50 am - 9:00 am

BUF

SYD

29h 10m2 stops

2:05 pm - 9:06 pm

SYD

BUF

23h 01m1 stop

$1,851American Airlines

Sun, Jan 25 - Sun, Feb 1

8:30 am - 9:35 am

BUF

SYD

33h 05m2 stops

11:20 am - 8:29 pm

SYD

BUF

25h 09m2 stops

$1,856Air Canada

Sat, Feb 7 - Wed, Feb 11

American Airlines flights from Buffalo to Sydney

Our best American Airlines deals on Buffalo to Sydney flight tickets

American Airlines

Feb 9

BUF6:53 amBuffalo

32h 02m

1 stop

SYD6:55 amSydney Kingsford Smith

Feb 22

SYD2:05 pmSydney Kingsford Smith

24h 29m

1 stop

BUF10:34 pmBuffalo

$1,197

Find similar

American Airlines

Feb 9

BUF12:58 pmBuffalo

28h 02m

2 stops

SYD9:00 amSydney Kingsford Smith

Feb 22

SYD2:05 pmSydney Kingsford Smith

24h 29m

1 stop

BUF10:34 pmBuffalo

$1,201

Find similar

American Airlines

Jan 25

BUF11:50 amBuffalo

29h 10m

2 stops

SYD9:00 amSydney Kingsford Smith

Feb 1

SYD2:05 pmSydney Kingsford Smith

23h 01m

1 stop

BUF9:06 pmBuffalo

$1,851

Find similar

United Airlines flights from Buffalo to Sydney

Our best United Airlines deals on Buffalo to Sydney flight tickets

United Airlines

Jan 15

BUF8:30 amBuffalo

32h 35m

2 stops

SYD9:05 amSydney Kingsford Smith

Jan 30

SYD2:00 pmSydney Kingsford Smith

40h 14m

2 stops

BUF2:14 pmBuffalo

$1,397

Find similar

United Airlines

Jan 25

BUF1:59 pmBuffalo

25h 01m

2 stops

SYD7:00 amSydney Kingsford Smith

Feb 1

SYD11:20 amSydney Kingsford Smith

25h 09m

2 stops

BUF8:29 pmBuffalo

$1,713

Find similar

United Airlines

Dec 28

BUF1:59 pmBuffalo

25h 01m

2 stops

SYD7:00 amSydney Kingsford Smith

Jan 11

SYD12:10 pmSydney Kingsford Smith

42h 04m

2 stops

BUF2:14 pmBuffalo

$2,043

Find similar

Fly from

Fly to

Route

Depart

Return

Price

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

Mon 2/9

6:53 am-6:55 am

1 stop32h 02m

Sydney Kingsford Smith

Sun 2/22

2:05 pm-10:34 pm

1 stop24h 29m

$1,197

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

Mon 2/9

12:58 pm-9:00 am

2 stops28h 02m

Sydney Kingsford Smith

Sun 2/22

2:05 pm-10:34 pm

1 stop24h 29m

$1,201

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

Thu 1/15

8:30 am-9:05 am

2 stops32h 35m

Sydney Kingsford Smith

Fri 1/30

2:00 pm-2:14 pm

2 stops40h 14m

$1,397

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

Sun 1/25

10:33 am-8:30 am

2 stops29h 57m

Sydney Kingsford Smith

Sun 2/1

10:40 am-10:57 pm

2 stops28h 17m

$1,590

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

Sun 1/25

1:59 pm-7:00 am

2 stops25h 01m

Sydney Kingsford Smith

Sun 2/1

11:20 am-8:29 pm

2 stops25h 09m

$1,713

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

Sat 2/7

8:30 am-9:35 am

3 stops57h 05m

Sydney Kingsford Smith

Wed 2/11

11:20 am-8:29 pm

2 stops25h 09m

$1,773

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

Sat 2/7

8:30 am-9:35 am

3 stops57h 05m

Sydney Kingsford Smith

Wed 2/11

11:20 am-8:29 pm

2 stops25h 09m

$1,844

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

$1,848

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

Sun 1/25

11:50 am-9:00 am

2 stops29h 10m

Sydney Kingsford Smith

Sun 2/1

2:05 pm-9:06 pm

1 stop23h 01m

$1,851

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

Sat 2/7

8:30 am-9:35 am

2 stops33h 05m

Sydney Kingsford Smith

Wed 2/11

11:20 am-8:29 pm

2 stops25h 09m

$1,856

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 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, December 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 $1,295. If you are unable to visit Sydney during the month of December, then departing from Buffalo during the month June is also very affordable. Most momondo users find prices during this month for around $1,396.

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 19% 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	26h 49m
Direct flights	None

The fastest flight from Buffalo to Sydney takes 26h 49m

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 26h 49m 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 December 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 49% of the total bookings. Other popular airlines include Delta with 29% and United Airlines with 22%.

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 8,007 reviews	Search Delta flights
American Airlines	PriceFrom $1,166	Free Cancellation	Rating 7.2 11,050 reviews	Search American Airlines flights
United Airlines	PriceFrom $1,295	Free Cancellation	Rating 7.4 9,095 reviews	Search United Airlines flights

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Manly

Penrith

Cronulla

Lithgow

Leura

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Terrigal

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 $763

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 1/25. 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

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 19% 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?

Delta and American 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

Fastest flight time

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