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

American Airlines is the most popular carrier 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

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.

11:23 am - 9:00 am

BUF

SYD

30h 37m2 stops

1:05 pm - 11:50 pm

SYD

BUF

25h 45m2 stops

$1,264American Airlines

sáb, mar 14 - dom, mar 22

8:00 am - 5:55 pm

BUF

SYD

42h 55m2 stops

9:45 pm - 6:57 pm

SYD

BUF

36h 12m2 stops

$1,275Etihad Airways

qua, mar 11 - sex, mar 20

9:54 am - 6:35 am

BUF

SYD

53h 41m2 stops

9:45 pm - 8:53 pm

SYD

BUF

62h 08m2 stops

$1,295Etihad Airways

sex, mar 13 - seg, mar 23

1:52 pm - 9:05 am

BUF

SYD

28h 13m2 stops

12:10 pm - 11:56 pm

SYD

BUF

26h 46m2 stops

$1,297United Airlines

qua, mar 11 - qua, mar 25

12:58 pm - 9:00 am

BUF

SYD

28h 02m2 stops

11:20 am - 9:06 pm

SYD

BUF

25h 46m2 stops

$1,300American Airlines

qui, jan 22 - qui, jan 29

11:22 am - 9:00 am

BUF

SYD

29h 38m2 stops

2:05 pm - 9:06 pm

SYD

BUF

23h 01m1 stop

$1,301American Airlines

qui, jan 22 - qui, jan 29

12:38 pm - 9:00 am

BUF

SYD

28h 22m2 stops

11:20 am - 11:41 pm

SYD

BUF

28h 21m2 stops

$1,344American Airlines

qua, jan 21 - qua, jan 28

11:21 am - 9:00 am

BUF

SYD

29h 39m2 stops

11:05 am - 9:06 pm

SYD

BUF

26h 01m2 stops

$1,355American Airlines

qua, jan 21 - qua, jan 28

9:54 am - 5:55 pm

BUF

SYD

41h 01m2 stops

9:45 pm - 8:53 pm

SYD

BUF

62h 08m2 stops

$1,365Etihad Airways

ter, mar 17 - seg, mar 23

9:54 am - 6:35 am

BUF

SYD

53h 41m2 stops

9:45 pm - 6:57 pm

SYD

BUF

36h 12m2 stops

$1,385Etihad Airways

sex, mar 13 - sex, mar 20

Delta flights from Buffalo to Sydney

Our best Delta deals on Buffalo to Sydney flight tickets

Delta

Mar 15

BUF6:15 amBuffalo

34h 10m

2 stops

SYD7:25 amSydney Kingsford Smith

Mar 25

SYD9:40 amSydney Kingsford Smith

22h 27m

2 stops

BUF5:07 pmBuffalo

$1,567

Find similar

Delta

Mar 13

BUF5:50 pmBuffalo

69h 15m

2 stops

SYD6:05 amSydney Kingsford Smith

Mar 25

SYD9:40 amSydney Kingsford Smith

22h 27m

2 stops

BUF5:07 pmBuffalo

$1,587

Find similar

Delta

Mar 16

BUF1:00 pmBuffalo

27h 25m

2 stops

SYD7:25 amSydney Kingsford Smith

Mar 22

SYD9:40 amSydney Kingsford Smith

28h 15m

2 stops

BUF10:55 pmBuffalo

$1,589

Find similar

United Airlines flights from Buffalo to Sydney

Our best United Airlines deals on Buffalo to Sydney flight tickets

United Airlines

Mar 11

BUF1:52 pmBuffalo

28h 13m

2 stops

SYD9:05 amSydney Kingsford Smith

Mar 25

SYD12:10 pmSydney Kingsford Smith

26h 46m

2 stops

BUF11:56 pmBuffalo

$1,297

Find similar

United Airlines

Jan 15

BUF8:30 amBuffalo

32h 35m

2 stops

SYD9:05 amSydney Kingsford Smith

Jan 30

SYD11:50 amSydney Kingsford Smith

24h 39m

2 stops

BUF8:29 pmBuffalo

$1,547

Find similar

United Airlines

Mar 12

BUF2:49 pmBuffalo

27h 16m

2 stops

SYD9:05 amSydney Kingsford Smith

Mar 19

SYD10:20 amSydney Kingsford Smith

23h 22m

2 stops

BUF6:42 pmBuffalo

$1,667

Find similar

Fly from

Fly to

Route

Depart

Return

Price

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

sáb 3/14

11:23 am-9:00 am

2 stops30h 37m

Sydney Kingsford Smith

dom 3/22

1:05 pm-11:50 pm

2 stops25h 45m

$1,264

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

qua 3/11

8:00 am-5:55 pm

2 stops42h 55m

Sydney Kingsford Smith

sex 3/20

9:45 pm-6:57 pm

2 stops36h 12m

$1,275

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

sex 3/13

9:54 am-6:35 am

2 stops53h 41m

Sydney Kingsford Smith

seg 3/23

9:45 pm-8:53 pm

2 stops62h 08m

$1,295

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

qua 3/11

1:52 pm-9:05 am

2 stops28h 13m

Sydney Kingsford Smith

qua 3/25

12:10 pm-11:56 pm

2 stops26h 46m

$1,297

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

qui 1/22

12:58 pm-9:00 am

2 stops28h 02m

Sydney Kingsford Smith

qui 1/29

11:20 am-9:06 pm

2 stops25h 46m

$1,300

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

qui 1/22

11:22 am-9:00 am

2 stops29h 38m

Sydney Kingsford Smith

qui 1/29

2:05 pm-9:06 pm

1 stop23h 01m

$1,301

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

qua 1/21

12:38 pm-9:00 am

2 stops28h 22m

Sydney Kingsford Smith

qua 1/28

11:20 am-11:41 pm

2 stops28h 21m

$1,344

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

qua 1/21

11:21 am-9:00 am

2 stops29h 39m

Sydney Kingsford Smith

qua 1/28

11:05 am-9:06 pm

2 stops26h 01m

$1,355

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

ter 3/17

9:54 am-5:55 pm

2 stops41h 01m

Sydney Kingsford Smith

seg 3/23

9:45 pm-8:53 pm

2 stops62h 08m

$1,365

BuffaloSydney

BUF - SYD

BUFSYD

Buffalo

sex 3/13

9:54 am-6:35 am

2 stops53h 41m

Sydney Kingsford Smith

sex 3/20

9:45 pm-6:57 pm

2 stops36h 12m

$1,385

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 17 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	32h 40m
Direct flights	None

The fastest flight from Buffalo to Sydney takes 32h 40m

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 05m 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 8,011 reviews	Search Delta flights
American Airlines	PriceFrom $1,166	Free Cancellation	Rating 7.2 11,045 reviews	Search American Airlines flights
United Airlines	PriceFrom $1,295	Free Cancellation	Rating 7.4 9,089 reviews	Search United Airlines flights

Parramatta

Bondi Beach

Katoomba

Wollongong

Randwick

Coogee

Manly

Penrith

Cronulla

Lithgow

Leura

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

qui 1/8

qui 1/15

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

Airports servicing New South Wales

Popular cities in Australia

Flights to Melbournefrom $672

Flights to Brisbanefrom $697

Flights to Perthfrom $917

Flights to Adelaidefrom $892

Flights to Cairnsfrom $1,054

Flights to Coolangattafrom $1,020

Flights to Hobartfrom $1,017

Flights to Canberrafrom $1,000

Flights to Darwinfrom $1,340

Flights to Maroochydorefrom $994

Flights to Launcestonfrom $1,048

Flights to Proserpinefrom $1,733

Cheap flights from Buffalo to Sydney from $754

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.

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

Delta flights from Buffalo to Sydney

Our best Delta deals on Buffalo to Sydney flight tickets

United Airlines flights from Buffalo to Sydney

Our best United 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

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 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?

American Airlines is the most popular carrier 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