$137 Cheap Flights from Seattle (SEA) to Buffalo (BUF)

View $137 flight on Tue, May 19, 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 to Buffalo (SEA-BUF)

Prices were available within the past 7 days and start at $137 for one-way flights and $273 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

JetBlue Airways
Thu, Jun 4 - Tue, Jun 9
SEA
Seattle
BUF
Buffalo
$273 Roundtrip, found 13 hours ago
$273
Roundtrip
found 13 hours ago
Select JetBlue Airways flight, departing Thu, Jun 4 from Seattle to Buffalo, returning Tue, Jun 9, priced at $273 found 13 hours ago
JetBlue Airways
Tue, May 19 - Wed, Jun 3
SEA
Seattle
BUF
Buffalo
$273 Roundtrip, found 2 days ago
$273
Roundtrip
found 2 days ago
Select JetBlue Airways flight, departing Tue, May 19 from Seattle to Buffalo, returning Wed, Jun 3, priced at $273 found 2 days ago
American Airlines
Tue, Apr 21 - Sat, Apr 25
SEA
Seattle
BUF
Buffalo
$280 Roundtrip, found 1 day ago
$280
Roundtrip
found 1 day ago
Select American Airlines flight, departing Tue, Apr 21 from Seattle to Buffalo, returning Sat, Apr 25, priced at $280 found 1 day ago
Delta
Tue, Apr 21 - Sat, Apr 25
SEA
Seattle
BUF
Buffalo
$285 Roundtrip, found 1 day ago
$285
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Apr 21 from Seattle to Buffalo, returning Sat, Apr 25, priced at $285 found 1 day ago
American Airlines
Tue, Apr 21 - Sat, Apr 25
SEA
Seattle
BUF
Buffalo
$301 Roundtrip, found 1 day ago
$301
Roundtrip
found 1 day ago
Select American Airlines flight, departing Tue, Apr 21 from Seattle to Buffalo, returning Sat, Apr 25, priced at $301 found 1 day ago
American Airlines
Tue, Apr 21 - Sat, Apr 25
SEA
Seattle
BUF
Buffalo
$304 Roundtrip, found 1 day ago
$304
Roundtrip
found 1 day ago
Select American Airlines flight, departing Tue, Apr 21 from Seattle to Buffalo, returning Sat, Apr 25, priced at $304 found 1 day ago
JetBlue Airways
Fri, May 15 - Wed, Jun 3
SEA
Seattle
BUF
Buffalo
$305 Roundtrip, found 2 days ago
$305
Roundtrip
found 2 days ago
Select JetBlue Airways flight, departing Fri, May 15 from Seattle to Buffalo, returning Wed, Jun 3, priced at $305 found 2 days ago
Delta
Tue, Apr 14 - Wed, Apr 15
SEA
Seattle
BUF
Buffalo
$305 Roundtrip, found 1 day ago
$305
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Apr 14 from Seattle to Buffalo, returning Wed, Apr 15, priced at $305 found 1 day ago
United
Tue, Apr 28 - Wed, May 6
SEA
Seattle
BUF
Buffalo
$311 Roundtrip, found 13 hours ago
$311
Roundtrip
found 13 hours ago
Select United flight, departing Tue, Apr 28 from Seattle to Buffalo, returning Wed, May 6, priced at $311 found 13 hours ago
Southwest Airlines
Tue, Apr 28 - Wed, May 6
SEA
Seattle
BUF
Buffalo
$311 Roundtrip, found 13 hours ago
$311
Roundtrip
found 13 hours ago
Select Southwest Airlines flight, departing Tue, Apr 28 from Seattle to Buffalo, returning Wed, May 6, priced at $311 found 13 hours ago

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Alternative airports near Buffalo

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Buffalo Niagara Intl. BUF. Cheapest and Closest option available. Average driving time to city center is 16 minutes. Flights from $434
BUF
Buffalo Niagara Intl.
CheapestClosest
Average driving time to city center16 min
Flights from $434

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

September is typically the cheapest month to fly

From $175 - $436 per traveler.

Frequently asked questions

How much does a flight from Seattle - Tacoma Intl. Airport (SEA) to Buffalo Niagara Intl. Airport (BUF) cost?
Snag a cheap one-way flight from $137 or cheap return flight from $273 from Seattle - Tacoma Intl. Airport (SEA) to Buffalo Niagara Intl. Airport (BUF) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Seattle - Tacoma Intl. Airport (SEA) to Buffalo Niagara Intl. Airport (BUF)?
Planning your getaway for June can help you save, as it's the cheapest month for flights between SEA and BUF. You'll often find the lowest prices during the off-season.
What is the cheapest airline that flies from Seattle - Tacoma Intl. Airport (SEA) to Buffalo Niagara Intl. Airport (BUF)?
To find the cheapest airline flying from SEA to BUF, use Expedia's filter tool. Tailor your search based on your travel needs, such as preferred carriers and ideal departure window. You can then sort your results by "Price (lowest to highest)" to see the most affordable options first.
How many flights per day from Seattle - Tacoma Intl. Airport (SEA) to Buffalo Niagara Intl. Airport (BUF)?
There aren't any daily direct flights from Seattle - Tacoma Intl. Airport (SEA) to Buffalo Niagara Intl. Airport (BUF). But you can choose flights with layovers. Filter your search results on Expedia to include one or two stops, and you'll be soaring above the clouds in no time at all.
What day of the week has the most flights from SEA to BUF?
You'll usually find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can vary from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Seattle - Tacoma Intl. Airport (SEA) to Buffalo Niagara Intl. Airport (BUF)?
Select a flight from Seattle - Tacoma Intl. Airport (SEA) to Buffalo Niagara Intl. Airport (BUF) that leaves before 3 PM to reduce the likelihood of delays and cancellations. Departures later than this are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Seattle - Tacoma Intl. Airport (SEA) to Buffalo Niagara Intl. Airport (BUF) last-minute?
Last-minute fares from SEA to BUF are usually more expensive. To lock in the lowest prices, start searching for flights well in advance. That being said, if your travel plans are flexible, you may score a cheap ticket just before your departure.
Is it cheaper to book a SEA to BUF flight and hotel package?
You'll typically save money by securing a SEA to BUF flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one place. After selecting your ideal flights and accommodations, consider adding extras such as car rentals, activities and tours.
Can I cancel or change the date of my flight from Seattle - Tacoma Intl. Airport (SEA) to Buffalo Niagara Intl. Airport (BUF)?
If you reserved your SEA to BUF flight in the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the fare type you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal for more information.

Travel information

Origin airport
Seattle - Tacoma Intl.
Destination airport
Buffalo Niagara Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, JetBlue Airways, Southwest Airlines, Sun Country Airlines, United
Roundtrip price
$272
Distance
2116 mi
Average flight time
7 hours 25 mins

Book with confidence

Seattle to Buffalo Flights

The cheapest times to fly from Seattle to Buffalo

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Seattle to Buffalo are during the month of June. You can find some of the cheapest flights from Seattle to Buffalo with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Seattle to Buffalo

Sunday is one of the best days to book for cheap flights from Seattle to Buffalo: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Seattle to Buffalo

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Seattle to Buffalo in 2026. You can also book with separate airlines for your outbound and return journeys, from $137 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Seattle to Buffalo flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Seattle to Buffalo airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Seattle to Buffalo Flights

*Flight schedules are subject to change.

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