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

View AU$244 flight on Sat, 27 Sep. 2025Opens 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
Sat, 27 Sep. - Sat, 4 Oct.
SEA
Seattle
BUF
Buffalo
AU$487 Return, found 14 hours ago
AU$487
Return
found 14 hours ago
Select American Airlines flight, departing Sat, 27 Sep. from Seattle to Buffalo, returning Sat, 4 Oct., priced at AU$487 found 14 hours ago
American Airlines
Sat, 27 Sep. - Sat, 4 Oct.
SEA
Seattle
BUF
Buffalo
AU$516 Return, found 14 hours ago
AU$516
Return
found 14 hours ago
Select American Airlines flight, departing Sat, 27 Sep. from Seattle to Buffalo, returning Sat, 4 Oct., priced at AU$516 found 14 hours ago
American Airlines
Sat, 27 Sep. - Sat, 4 Oct.
SEA
Seattle
BUF
Buffalo
AU$548 Return, found 14 hours ago
AU$548
Return
found 14 hours ago
Select American Airlines flight, departing Sat, 27 Sep. from Seattle to Buffalo, returning Sat, 4 Oct., priced at AU$548 found 14 hours ago
American Airlines
Sat, 27 Sep. - Sat, 4 Oct.
SEA
Seattle
BUF
Buffalo
AU$577 Return, found 14 hours ago
AU$577
Return
found 14 hours ago
Select American Airlines flight, departing Sat, 27 Sep. from Seattle to Buffalo, returning Sat, 4 Oct., priced at AU$577 found 14 hours ago
American Airlines
Sat, 27 Sep. - Sat, 4 Oct.
SEA
Seattle
BUF
Buffalo
AU$595 Return, found 14 hours ago
AU$595
Return
found 14 hours ago
Select American Airlines flight, departing Sat, 27 Sep. from Seattle to Buffalo, returning Sat, 4 Oct., priced at AU$595 found 14 hours ago
Delta
Sat, 27 Sep. - Sat, 4 Oct.
SEA
Seattle
BUF
Buffalo
AU$609 Return, found 14 hours ago
AU$609
Return
found 14 hours ago
Select Delta flight, departing Sat, 27 Sep. from Seattle to Buffalo, returning Sat, 4 Oct., priced at AU$609 found 14 hours ago
American Airlines
Sat, 27 Sep. - Sat, 4 Oct.
SEA
Seattle
BUF
Buffalo
AU$624 Return, found 14 hours ago
AU$624
Return
found 14 hours ago
Select American Airlines flight, departing Sat, 27 Sep. from Seattle to Buffalo, returning Sat, 4 Oct., priced at AU$624 found 14 hours ago
United
Sat, 27 Sep. - Sat, 4 Oct.
SEA
Seattle
BUF
Buffalo
AU$627 Return, found 14 hours ago
AU$627
Return
found 14 hours ago
Select United flight, departing Sat, 27 Sep. from Seattle to Buffalo, returning Sat, 4 Oct., priced at AU$627 found 14 hours ago
American Airlines
Sat, 27 Sep. - Sat, 4 Oct.
SEA
Seattle
BUF
Buffalo
AU$632 Return, found 14 hours ago
AU$632
Return
found 14 hours ago
Select American Airlines flight, departing Sat, 27 Sep. from Seattle to Buffalo, returning Sat, 4 Oct., priced at AU$632 found 14 hours ago
Alaska Airlines
Sat, 27 Sep. - Sat, 4 Oct.
SEA
Seattle
BUF
Buffalo
AU$793 Return, found 14 hours ago
AU$793
Return
found 14 hours ago
Select Alaska Airlines flight, departing Sat, 27 Sep. from Seattle to Buffalo, returning Sat, 4 Oct., priced at AU$793 found 14 hours ago

Find the cheapest month to fly from Seattle (SEA) to Buffalo (BUF)

September is typically the cheapest month to fly

From AU$351 - AU$730 per traveller.

Graph displaying average flight prices per month

Flight from Seattle to Buffalo route information
Origin airport
Seattle - Tacoma Intl.
Destination airport
Buffalo Niagara Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, United
Return price
AU$486
Distance
3385 km

Your quick guide to flights from Seattle to Buffalo

Pick up great flights from Seattle to Buffalo

With Expedia, you have your pick of flights a day with 20 airlines covering flights from Seattle to Buffalo. Whether you’re on a business trip, a family holiday or a luxury break, just enter your travel dates, hit search then check out your choice of flights. Select from return, one way or multi-city flights, and use the advance search tool if you want a direct or refundable flight. You can narrow your search to show you just your preferred cabin class and airline, too. It’s all easy. You can book direct flights from Seattle to Buffalo that take around hours.

Find cheap flights from Seattle to Buffalo

From the great flight deals with prices currently ranging from AU$487 to AU$793, you can choose to see the cheapest flights first. Generally, you can book the cheapest flights from Seattle to Buffalo around 4 to 6 weeks in advance. If your travel dates are flexible, try to avoid weekends and peak seasons – when you are more likely to grab the lowest prices. Even last minute, there are some impressive deals. The cheapest time to fly to Buffalo is normally in September.

Reasons to book your flight from Seattle to Buffalo with Expedia

Expedia makes it easy to find, book, and travel, with everything you need all in one place. When you enter your travel details, find fantastic deals just for you on flight tickets from Seattle to Buffalo across all the main airline carriers, so you can save time, dollars, and hassle finding the perfect flight. If you think your plans could change, choose refundable flights so any changes won’t cost you more. Book your flight to Buffalo right now and, if you join Expedia Rewards, you earn points this time and every time you travel with Expedia.

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$487. 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.

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