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Cheap flights from Seattle to Buffalo from $131

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Buffalo departing on 5/26. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Seattle to Buffalo

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
11:59 pm - 11:29 am
SEA
-
BUF
8h 30m
1 stop
Multiple Airlines Logo
12:47 pm - 5:22 pm
BUF
-
SEA
7h 35m
1 stop
$328Multiple Airlines
Mon, May 18 - Sun, May 31
Multiple Airlines Logo
11:30 am - 10:57 pm
SEA
-
BUF
8h 27m
1 stop
Multiple Airlines Logo
11:41 am - 5:27 pm
BUF
-
SEA
8h 46m
1 stop
$350Multiple Airlines
Tue, Jun 2 - Thu, Jun 4
Southwest Logo
11:45 pm - 10:20 am
SEA
-
BUF
7h 35m
1 stop
Southwest Logo
6:55 pm - 12:10 am
BUF
-
SEA
8h 15m
1 stop
$359Southwest
Tue, Apr 28 - Tue, May 5
Sun Country Air Logo
6:24 pm - 10:41 am
SEA
-
BUF
13h 17m
1 stop
Sun Country Air Logo
11:41 am - 10:46 pm
BUF
-
SEA
14h 05m
1 stop
$363Sun Country Air
Sat, Jun 6 - Sun, Jun 7
Southwest Logo
6:00 am - 6:15 pm
SEA
-
BUF
9h 15m
2 stops
Southwest Logo
6:55 pm - 12:10 am
BUF
-
SEA
8h 15m
1 stop
$364Southwest
Tue, Apr 28 - Tue, May 5
Southwest Logo
11:45 pm - 12:15 pm
SEA
-
BUF
9h 30m
2 stops
Southwest Logo
3:10 pm - 11:35 pm
BUF
-
SEA
11h 25m
2 stops
$369Southwest
Tue, Apr 28 - Tue, May 5
American Airlines Logo
10:57 pm - 10:58 am
SEA
-
BUF
9h 01m
1 stop
American Airlines Logo
4:25 pm - 9:57 pm
BUF
-
SEA
8h 32m
1 stop
$372American Airlines
Mon, Feb 23 - Wed, Feb 25
American Airlines Logo
10:57 pm - 10:58 am
SEA
-
BUF
9h 01m
1 stop
American Airlines Logo
4:04 pm - 12:24 am
BUF
-
SEA
11h 20m
2 stops
$377American Airlines
Mon, Feb 23 - Wed, Feb 25
American Airlines Logo
12:34 pm - 11:49 pm
SEA
-
BUF
8h 15m
1 stop
American Airlines Logo
3:01 pm - 10:38 pm
BUF
-
SEA
10h 37m
1 stop
$385American Airlines
Wed, May 13 - Sat, May 16
United Airlines Logo
11:59 pm - 2:17 pm
SEA
-
BUF
11h 18m
2 stops
United Airlines Logo
5:50 pm - 11:57 pm
BUF
-
SEA
9h 07m
1 stop
$390United Airlines
Mon, Apr 27 - Mon, May 4

Southwest flights from Seattle to Buffalo

Our best Southwest deals on Seattle to Buffalo flight tickets
Southwest
Apr 28
SEA11:45 pmSeattle/Tacoma Intl
7h 35m
1 stop
BUF10:20 amBuffalo
May 5
BUF6:55 pmBuffalo
8h 15m
1 stop
SEA12:10 amSeattle/Tacoma Intl
$359
Southwest
Apr 28
SEA6:00 amSeattle/Tacoma Intl
9h 15m
2 stops
BUF6:15 pmBuffalo
May 5
BUF6:55 pmBuffalo
8h 15m
1 stop
SEA12:10 amSeattle/Tacoma Intl
$364
Southwest
Apr 28
SEA11:45 pmSeattle/Tacoma Intl
9h 30m
2 stops
BUF12:15 pmBuffalo
May 5
BUF3:10 pmBuffalo
11h 25m
2 stops
SEA11:35 pmSeattle/Tacoma Intl
$369

Sun Country Air flights from Seattle to Buffalo

Our best Sun Country Air deals on Seattle to Buffalo flight tickets
Sun Country Air
Jun 6
SEA6:24 pmSeattle/Tacoma Intl
13h 17m
1 stop
BUF10:41 amBuffalo
Jun 7
BUF11:41 amBuffalo
8h 46m
1 stop
SEA5:27 pmSeattle/Tacoma Intl
$363
Sun Country Air
Jul 2
SEA11:59 pmSeattle/Tacoma Intl
7h 32m
1 stop
BUF10:31 amBuffalo
Jul 6
BUF11:53 amBuffalo
23h 02m
1 stop
SEA7:55 amSeattle/Tacoma Intl
$420

momondo Fare Finder

 
Customize your flight search to find flights from Seattle to Buffalo that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated February 2, 2026.
Use the filters below to find and compare flights from Seattle to Buffalo that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleBuffalo

SEA - BUF

SEABUF

Seattle/Tacoma Intl

Mon 5/18

11:59 pm-11:29 am

1 stop8h 30m

Buffalo

Sun 5/31

12:47 pm-5:22 pm

1 stop7h 35m

$328

SeattleBuffalo

SEA - BUF

SEABUF

Seattle/Tacoma Intl

Tue 6/2

11:30 am-10:57 pm

1 stop8h 27m

Buffalo

Thu 6/4

11:41 am-5:27 pm

1 stop8h 46m

$350

SeattleBuffalo

SEA - BUF

SEABUF

Seattle/Tacoma Intl

Tue 4/28

11:45 pm-10:20 am

1 stop7h 35m

Buffalo

Tue 5/5

6:55 pm-12:10 am

1 stop8h 15m

$359

SeattleBuffalo

SEA - BUF

SEABUF

Seattle/Tacoma Intl

Sat 6/6

6:24 pm-10:41 am

1 stop13h 17m

Buffalo

Sun 6/7

11:41 am-10:46 pm

1 stop14h 05m

$363

SeattleBuffalo

SEA - BUF

SEABUF

Seattle/Tacoma Intl

Tue 4/28

6:00 am-6:15 pm

2 stops9h 15m

Buffalo

Tue 5/5

6:55 pm-12:10 am

1 stop8h 15m

$364

SeattleBuffalo

SEA - BUF

SEABUF

Seattle/Tacoma Intl

Tue 4/28

11:45 pm-12:15 pm

2 stops9h 30m

Buffalo

Tue 5/5

3:10 pm-11:35 pm

2 stops11h 25m

$369

SeattleBuffalo

SEA - BUF

SEABUF

Seattle/Tacoma Intl

Mon 2/23

10:57 pm-10:58 am

1 stop9h 01m

Buffalo

Wed 2/25

4:25 pm-9:57 pm

1 stop8h 32m

$372

SeattleBuffalo

SEA - BUF

SEABUF

Seattle/Tacoma Intl

Mon 2/23

10:57 pm-10:58 am

1 stop9h 01m

Buffalo

Wed 2/25

4:04 pm-12:24 am

2 stops11h 20m

$377

SeattleBuffalo

SEA - BUF

SEABUF

Seattle/Tacoma Intl

Wed 5/13

12:34 pm-11:49 pm

1 stop8h 15m

Buffalo

Sat 5/16

3:01 pm-10:38 pm

1 stop10h 37m

$385

SeattleBuffalo

SEA - BUF

SEABUF

Seattle/Tacoma Intl

Mon 4/27

11:59 pm-2:17 pm

2 stops11h 18m

Buffalo

Mon 5/4

5:50 pm-11:57 pm

1 stop9h 07m

$390

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Buffalo from

How to get the cheapest flight ticket from Seattle to Buffalo

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 Buffalo?

If you aren’t able to travel during the month of September, then book flights to Buffalo from Seattle during October instead. Flights to Buffalo in October, while not as cheap as those in September, still average around $378.

How far in advance should I book a flight to Buffalo?

You are more likely to see cheaper flights to Buffalo from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Buffalo for around $491 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Buffalo from Seattle for as low as $282 on momondo.

How have Seattle to Buffalo flight prices changed over time?

As of February 2026, prices for Seattle to Buffalo flights are approximately 43% more expensive when compared to flights at the same time last year.

When to book flights from Seattle to Buffalo

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Buffalo according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Seattle to Buffalo (SEA to BUF) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Buffalo

Fastest flight time

6h 30m

Direct flights

None
The fastest flight from Seattle to Buffalo takes 6h 30m
There are no direct flights from Seattle to Buffalo. There are no popular flight routes from Seattle to Buffalo.
Search flight deals

  • How far is Seattle/Tacoma Intl to Buffalo by plane?

    Buffalo is 2109.4 mi away from Seattle/Tacoma Intl. Typically, this will take 6h 30m by plane in normal conditions.

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Buffalo Airport?

    Prices for flights from Seattle/Tacoma Intl Airport to Buffalo Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Buffalo Airport?

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Buffalo Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Seattle/Tacoma Intl Airport to Buffalo Airport.

  • What documentation or ID do you need to fly to Buffalo Airport?

    The necessary travel and health documents for your Buffalo Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Seattle to Buffalo?

Best airlines flying from Seattle to Buffalo

Compare and see reviews for airlines that fly from Seattle to Buffalo with momondo
Airline
Rating
Free Cancellation
Price
JetBluePriceFrom $131Free CancellationRating
7.2
2,893 reviews
Search JetBlue flights
FrontierPriceFrom $139Free CancellationRating
5.7
3,052 reviews
Search Frontier flights
DeltaPriceFrom $218Free CancellationRating
7.9
8,135 reviews
Search Delta flights
American AirlinesPriceFrom $286Free CancellationRating
7.2
11,213 reviews
Search American Airlines flights
United AirlinesPriceFrom $296Free CancellationRating
7.4
9,232 reviews
Search United Airlines flights
SouthwestPriceFrom $335Free CancellationRating
8.0
4,273 reviews
Search Southwest flights
Alaska AirlinesPriceFrom $500Free CancellationRating
8.0
11,831 reviews
Search Alaska Airlines flights

  • Southwest Flights From Seattle to Buffalo

    Southwest flight deals from Seattle to Buffalo start from $335 round-trip. Over the 3 Southwest flights for this route in a normal week, average airfare is usually $456 round-trip - but some users have found much cheaper deals with momondo.

Traveling to a place near Buffalo?

Book flights to Buffalo if you plan to visit one of these locations
Batavia
Cheektowaga
Amherst
Grand Island
Tonawanda
Williamsville
Orchard Park
Lockport
West Seneca
Bowmansville
East Aurora
Eden
Angola

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Buffalo?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Seattle to Buffalo. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Seattle to Buffalo with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Buffalo from Seattle with this policy.

How can momondo help me find flights from Seattle to Buffalo?

momondo provides multiple filters to help you find the best flight to Buffalo from Seattle. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Seattle to Buffalo right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Seattle to Buffalo 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 Buffalo 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.
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