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 48% 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 March 2026.

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.

$648 Cheap Flights from Buffalo to Sydney in 2026

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Buffalo to Sydney

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

10:44 am - 7:05 am

BUF

SYD

30h 21m

2 stops

9:10 am - 9:36 pm

SYD

BUF

26h 26m

2 stops

$1,255American Airlines

Mon, Apr 20 - Mon, May 4

3:01 pm - 7:05 am

BUF

SYD

26h 04m

2 stops

12:00 pm - 11:19 pm

SYD

BUF

25h 19m

1 stop

$1,263American Airlines

Mon, Apr 20 - Mon, May 4

7:00 am - 7:00 am

BUF

SYD

34h 00m

3 stops

9:30 am - 6:35 pm

SYD

BUF

23h 05m

2 stops

$1,274United Airlines

Mon, Apr 20 - Mon, May 4

4:57 pm - 7:05 am

BUF

SYD

24h 08m

2 stops

9:10 am - 10:36 pm

SYD

BUF

27h 26m

2 stops

$1,296American Airlines

Thu, May 21 - Sun, May 31

2:47 pm - 7:05 am

BUF

SYD

26h 18m

2 stops

12:00 pm - 10:36 pm

SYD

BUF

24h 36m

1 stop

$1,303American Airlines

Thu, May 21 - Sun, May 31

2:47 pm - 7:05 am

BUF

SYD

26h 18m

2 stops

12:00 pm - 10:36 pm

SYD

BUF

24h 36m

1 stop

$1,304American Airlines

Thu, May 21 - Sun, May 31

7:00 am - 7:00 am

BUF

SYD

34h 00m

3 stops

9:30 am - 9:03 pm

SYD

BUF

25h 33m

2 stops

$1,314United Airlines

Thu, May 21 - Sun, May 31

7:00 am - 7:00 am

BUF

SYD

34h 00m

3 stops

10:20 am - 9:03 pm

SYD

BUF

24h 43m

2 stops

$1,315United Airlines

Thu, May 21 - Sun, May 31

7:00 am - 6:55 am

BUF

SYD

33h 55m

1 stop

10:20 am - 6:54 pm

SYD

BUF

22h 34m

2 stops

$1,349Air New Zealand

Wed, Jul 29 - Tue, Aug 11

2:49 pm - 8:05 am

BUF

SYD

26h 16m

2 stops

11:50 am - 8:46 pm

SYD

BUF

23h 56m

2 stops

$1,355United Airlines

Sat, Mar 14 - Sat, Mar 21

ANA flights from Buffalo to Sydney

Our best ANA deals on Buffalo to Sydney flight tickets

ANA

Jul 13

BUF1:54 pmBuffalo

29h 31m

2 stops

SYD9:25 amSydney Kingsford Smith

Aug 3

SYD8:55 pmSydney Kingsford Smith

30h 24m

2 stops

BUF1:19 pmBuffalo

$7,160

ANA

Jul 15

BUF7:00 amBuffalo

46h 15m

2 stops

SYD7:15 pmSydney Kingsford Smith

Aug 3

SYD11:50 amSydney Kingsford Smith

39h 29m

2 stops

BUF1:19 pmBuffalo

$7,161

ANA

Jul 15

BUF1:54 pmBuffalo

39h 21m

2 stops

SYD7:15 pmSydney Kingsford Smith

Aug 6

SYD8:55 pmSydney Kingsford Smith

30h 24m

2 stops

BUF1:19 pmBuffalo

$7,661

American Airlines flights from Buffalo to Sydney

Our best American Airlines deals on Buffalo to Sydney flight tickets

American Airlines

Apr 20

BUF10:44 amBuffalo

30h 21m

2 stops

SYD7:05 amSydney Kingsford Smith

May 4

SYD9:10 amSydney Kingsford Smith

26h 26m

2 stops

BUF9:36 pmBuffalo

$1,255

American Airlines

Apr 20

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

$1,263

American Airlines

Mar 9

BUF6:34 amBuffalo

33h 21m

1 stop

SYD6:55 amSydney Kingsford Smith

Apr 8

SYD12:00 pmSydney Kingsford Smith

25h 19m

1 stop

BUF11:19 pmBuffalo

$1,275

Fly from

Fly to

Route

Depart

Return

Price

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

Mon 4/20

10:44 am-7:05 am

2 stops30h 21m

Sydney Kingsford Smith

Mon 5/4

9:10 am-9:36 pm

2 stops26h 26m

$1,255

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

Mon 4/20

3:01 pm-7:05 am

2 stops26h 04m

Sydney Kingsford Smith

Mon 5/4

12:00 pm-11:19 pm

1 stop25h 19m

$1,263

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

Mon 4/20

7:00 am-7:00 am

3 stops34h 00m

Sydney Kingsford Smith

Mon 5/4

9:30 am-6:35 pm

2 stops23h 05m

$1,274

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

Thu 5/21

4:57 pm-7:05 am

2 stops24h 08m

Sydney Kingsford Smith

Sun 5/31

9:10 am-10:36 pm

2 stops27h 26m

$1,296

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

Thu 5/21

2:47 pm-7:05 am

2 stops26h 18m

Sydney Kingsford Smith

Sun 5/31

12:00 pm-10:36 pm

1 stop24h 36m

$1,303

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

Thu 5/21

2:47 pm-7:05 am

2 stops26h 18m

Sydney Kingsford Smith

Sun 5/31

12:00 pm-10:36 pm

1 stop24h 36m

$1,304

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

Thu 5/21

7:00 am-7:00 am

3 stops34h 00m

Sydney Kingsford Smith

Sun 5/31

9:30 am-9:03 pm

2 stops25h 33m

$1,314

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

Thu 5/21

7:00 am-7:00 am

3 stops34h 00m

Sydney Kingsford Smith

Sun 5/31

10:20 am-9:03 pm

2 stops24h 43m

$1,315

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

Wed 7/29

7:00 am-6:55 am

1 stop33h 55m

Sydney Kingsford Smith

Tue 8/11

10:20 am-6:54 pm

2 stops22h 34m

$1,349

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

Sat 3/14

2:49 pm-8:05 am

2 stops26h 16m

Sydney Kingsford Smith

Sat 3/21

11:50 am-8:46 pm

2 stops23h 56m

$1,355

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 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, 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 $535. 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 20m
Direct flights	None

The fastest flight from Buffalo to Sydney takes 25h 20m

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 20m 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 March 2026.
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 51% of the total bookings. Other popular airlines include Delta with 30% and United Airlines with 19%.

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 $257	Free Cancellation	Rating 7.9 8,242 reviews	Search Delta flights
United Airlines	PriceFrom $853	Free Cancellation	Rating 7.4 9,377 reviews	Search United Airlines flights
American Airlines	PriceFrom $1,166	Free Cancellation	Rating 7.1 11,375 reviews	Search American Airlines flights

Bondi Beach

Katoomba

Parramatta

Wollongong

Penrith

Coogee

Manly

Randwick

Lithgow

Leura

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.

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.

Start using Trips

Find my bookings

Get notified when prices go down

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

1 adult

Thu 4/2

Thu 4/9

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Australia

Nearby airports

Airlines

Cabin classes

Other Australia destinations

Other flights from Buffalo

Complete your trip

Feeling lucky

Cheap flights from Buffalo to Sydney from $648

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 8/24. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Buffalo to Sydney

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

ANA flights from Buffalo to Sydney

Our best ANA deals on Buffalo to Sydney flight tickets

American Airlines flights from Buffalo to Sydney

Our best American Airlines deals on Buffalo to Sydney flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Buffalo to Sydney that are best for you.

See travel insights to Sydney from

How to get the cheapest flight ticket from Buffalo to Sydney

What is the cheapest month to fly to Sydney?

Can stopping save me money on Buffalo to Sydney flights?

What is the cheapest airline that flies 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

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?

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

Fly your favorite airline to Sydney

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Sydney

List of cabin classes available on flights landing in Sydney. Availability may vary depending on flight origin and airline.

Popular cities in Australia

Popular flights according to clicks in the last 7 days on momondo

Fly to other destinations from Buffalo

According to popular flight searches on momondo this year

Complete your trip to Sydney

Explore popular destinations other users love

According to popular flight searches on momondo this year