Cheap Flights from Seattle (SEA) to Buffalo (BUF)

View AU$445 flight on Sat, 25 Apr 2026Opens in a new window

Popular airlines from Seattle-Tacoma International Airport (SEA) to Buffalo Niagara Intl. Airport (BUF)

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Cheap Flights from Seattle (SEA) to Buffalo (BUF)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Tue, 30 June - Wed, 1 July
SEA
Seattle
BUF
Buffalo
AU$653 Return, found 3 days ago
AU$653
Return
found 3 days ago
Select American Airlines flight, departing Tue, 30 June from Seattle to Buffalo, returning Wed, 1 July, priced at AU$653 found 3 days ago
American Airlines
Tue, 30 June - Wed, 1 July
SEA
Seattle
BUF
Buffalo
AU$664 Return, found 3 days ago
AU$664
Return
found 3 days ago
Select American Airlines flight, departing Tue, 30 June from Seattle to Buffalo, returning Wed, 1 July, priced at AU$664 found 3 days ago
American Airlines
Tue, 30 June - Wed, 1 July
SEA
Seattle
BUF
Buffalo
AU$691 Return, found 3 days ago
AU$691
Return
found 3 days ago
Select American Airlines flight, departing Tue, 30 June from Seattle to Buffalo, returning Wed, 1 July, priced at AU$691 found 3 days ago
American Airlines
Tue, 30 June - Wed, 1 July
SEA
Seattle
BUF
Buffalo
AU$698 Return, found 3 days ago
AU$698
Return
found 3 days ago
Select American Airlines flight, departing Tue, 30 June from Seattle to Buffalo, returning Wed, 1 July, priced at AU$698 found 3 days ago
American Airlines
Tue, 30 June - Wed, 1 July
SEA
Seattle
BUF
Buffalo
AU$701 Return, found 3 days ago
AU$701
Return
found 3 days ago
Select American Airlines flight, departing Tue, 30 June from Seattle to Buffalo, returning Wed, 1 July, priced at AU$701 found 3 days ago
American Airlines
Tue, 30 June - Wed, 1 July
SEA
Seattle
BUF
Buffalo
AU$709 Return, found 3 days ago
AU$709
Return
found 3 days ago
Select American Airlines flight, departing Tue, 30 June from Seattle to Buffalo, returning Wed, 1 July, priced at AU$709 found 3 days ago
American Airlines
Tue, 30 June - Wed, 1 July
SEA
Seattle
BUF
Buffalo
AU$712 Return, found 3 days ago
AU$712
Return
found 3 days ago
Select American Airlines flight, departing Tue, 30 June from Seattle to Buffalo, returning Wed, 1 July, priced at AU$712 found 3 days ago
United
Tue, 30 June - Wed, 1 July
SEA
Seattle
BUF
Buffalo
AU$722 Return, found 3 days ago
AU$722
Return
found 3 days ago
Select United flight, departing Tue, 30 June from Seattle to Buffalo, returning Wed, 1 July, priced at AU$722 found 3 days ago
Delta
Sat, 25 Apr - Wed, 29 Apr
SEA
Seattle
BUF
Buffalo
AU$814 Return, found 3 days ago
AU$814
Return
found 3 days ago
Select Delta flight, departing Sat, 25 Apr from Seattle to Buffalo, returning Wed, 29 Apr, priced at AU$814 found 3 days ago
Alaska Airlines
Tue, 30 June - Wed, 1 July
SEA
Seattle
BUF
Buffalo
AU$839 Return, found 3 days ago
AU$839
Return
found 3 days ago
Select Alaska Airlines flight, departing Tue, 30 June from Seattle to Buffalo, returning Wed, 1 July, priced at AU$839 found 3 days ago

Frequently asked questions

How much is a flight from SEA to BUF?
If you're planning on travelling between Sea-Tac Airport and Buffalo Niagara International Airport, round-trip journeys start from AU$653. This price is based on airfares available within the last 7 days on Expedia for flights departing within the next year, so don't hang around. Book now and save yourself money and time. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from SEA to Buffalo Niagara Intl. Airport (BUF)?
We get that things come up unexpectedly, so we've made it as easy as possible for you to cancel your trip online. Just visit the Customer Service Portal and follow the instructions.
How do I find cheap flights from SEA to Buffalo Niagara International Airport that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Sea-Tac Airport to BUF flights, you'll see a "no change fees" filter for you to select.
How far is the flight from SEA to Buffalo Niagara Intl. Airport (BUF)?
The flying distance between Seattle - Tacoma Intl. Airport (SEA) and Buffalo Niagara International Airport is 3 400 kilometres. Listen to your favourite tunes or finish that novel and the journey will zip by.
Which airlines fly direct from Sea-Tac Airport to Buffalo Niagara International Airport?
Unfortunately, there are no airlines that fly direct between SEA and BUF. You'll need to book a flight with one or more stops.
Are Seattle - Tacoma Intl. Airport (SEA) to Buffalo Niagara Intl. Airport (BUF) flight tickets cheaper when they're purchased at the last minute?
Tickets from SEA to BUF are available up to 12 months before departure on Expedia. And although you may occasionally nab great last-minute deal, it's never a sure thing. Also, booking your flights ahead of time means you'll have more options — and you can avoid landing the dreaded middle seat! We're constantly updating our fares to make sure you get the biggest bargains, so check back often for all the latest specials.

Travel information

Origin airport
Seattle - Tacoma Intl.
Destination airport
Buffalo Niagara Intl.
Return price
AU$652
Distance
3385 km

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