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Cheap flights from Seattle to Buffalo from $137

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 7/7. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Seattle to Buffalo

Cheap round-trip flights

Enter your travel dates to find the best prices.
JetBlue Logo
9:40 pm - 8:24 am
SEA
-
BUF
7h 44m
1 stop
JetBlue Logo
12:10 pm - 8:42 pm
BUF
-
SEA
11h 32m
1 stop
$273JetBlue
Sat, Oct 3 - Tue, Oct 6
JetBlue Logo
9:40 pm - 8:24 am
SEA
-
BUF
7h 44m
1 stop
JetBlue Logo
12:10 pm - 8:42 pm
BUF
-
SEA
11h 32m
1 stop
$283JetBlue
Sat, Oct 3 - Tue, Oct 6
JetBlue Logo
9:40 pm - 8:24 am
SEA
-
BUF
7h 44m
1 stop
JetBlue Logo
12:10 pm - 8:42 pm
BUF
-
SEA
11h 32m
1 stop
$298JetBlue
Fri, Sep 25 - Sat, Sep 26
JetBlue Logo
11:55 pm - 11:14 am
SEA
-
BUF
8h 19m
1 stop
JetBlue Logo
2:30 pm - 10:38 pm
BUF
-
SEA
11h 08m
1 stop
$322JetBlue
Fri, Sep 11 - Sat, Sep 12
Delta Logo
11:10 pm - 11:22 am
SEA
-
BUF
9h 12m
1 stop
Delta Logo
12:02 pm - 6:45 pm
BUF
-
SEA
9h 43m
1 stop
$346Delta
Tue, Sep 1 - Sun, Sep 6
JetBlue Logo
9:40 pm - 8:24 am
SEA
-
BUF
7h 44m
1 stop
JetBlue Logo
2:30 pm - 10:38 pm
BUF
-
SEA
11h 08m
1 stop
$349JetBlue
Mon, Sep 14 - Fri, Sep 18
American Airlines Logo
11:56 pm - 9:37 am
SEA
-
BUF
6h 41m
1 stop
American Airlines Logo
5:20 am - 11:40 am
BUF
-
SEA
9h 20m
1 stop
$355American Airlines
Fri, Jul 3 - Tue, Jul 14
JetBlue Logo
9:40 pm - 8:24 am
SEA
-
BUF
7h 44m
1 stop
JetBlue Logo
2:30 pm - 10:38 pm
BUF
-
SEA
11h 08m
1 stop
$359JetBlue
Thu, Sep 24 - Sun, Sep 27
JetBlue Logo
9:40 pm - 8:24 am
SEA
-
BUF
7h 44m
1 stop
JetBlue Logo
2:30 pm - 10:38 pm
BUF
-
SEA
11h 08m
1 stop
$364JetBlue
Fri, Sep 25 - Sun, Sep 27
JetBlue Logo
11:55 pm - 11:14 am
SEA
-
BUF
8h 19m
1 stop
JetBlue Logo
3:10 pm - 10:38 pm
BUF
-
SEA
10h 28m
1 stop
$368JetBlue
Sun, Oct 18 - Fri, Oct 23

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Southwest flights from Seattle to Buffalo

Our best Southwest deals on Seattle to Buffalo flight tickets
Southwest
Aug 12
SEA5:20 amSeattle/Tacoma Intl
9h 25m
2 stops
BUF5:45 pmBuffalo
Aug 19
BUF6:25 pmBuffalo
8h 10m
1 stop
SEA11:35 pmSeattle/Tacoma Intl
$374
Southwest
Aug 12
SEA5:20 amSeattle/Tacoma Intl
9h 25m
2 stops
BUF5:45 pmBuffalo
Aug 19
BUF3:00 pmBuffalo
11h 05m
2 stops
SEA11:05 pmSeattle/Tacoma Intl
$379
Southwest
Aug 12
SEA6:40 amSeattle/Tacoma Intl
10h 55m
2 stops
BUF8:35 pmBuffalo
Aug 17
BUF7:10 pmBuffalo
7h 20m
1 stop
SEA11:30 pmSeattle/Tacoma Intl
$391

American Airlines flights from Seattle to Buffalo

Our best American Airlines deals on Seattle to Buffalo flight tickets
American Airlines
Jul 3
SEA11:56 pmSeattle/Tacoma Intl
6h 41m
1 stop
BUF9:37 amBuffalo
Jul 14
BUF5:20 amBuffalo
9h 20m
1 stop
SEA11:40 amSeattle/Tacoma Intl
$355
American Airlines
Jul 28
SEA11:56 pmSeattle/Tacoma Intl
6h 41m
1 stop
BUF9:37 amBuffalo
Aug 4
BUF2:44 pmBuffalo
11h 12m
1 stop
SEA10:56 pmSeattle/Tacoma Intl
$389
American Airlines
Jul 14
SEA11:56 pmSeattle/Tacoma Intl
6h 41m
1 stop
BUF9:37 amBuffalo
Jul 21
BUF6:32 amBuffalo
9h 47m
1 stop
SEA1:19 pmSeattle/Tacoma Intl
$395

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 June 17, 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

Cheapest round-trip

SeattleBuffalo

SEA - BUF

SEABUF

Seattle/Tacoma Intl

Sat 10/3

9:40 pm-8:24 am

1 stop7h 44m

Buffalo

Tue 10/6

12:10 pm-8:42 pm

1 stop11h 32m

$273

SeattleBuffalo

SEA - BUF

SEABUF

Seattle/Tacoma Intl

Sat 10/3

9:40 pm-8:24 am

1 stop7h 44m

Buffalo

Tue 10/6

12:10 pm-8:42 pm

1 stop11h 32m

$283

SeattleBuffalo

SEA - BUF

SEABUF

Seattle/Tacoma Intl

Fri 9/25

9:40 pm-8:24 am

1 stop7h 44m

Buffalo

Sat 9/26

12:10 pm-8:42 pm

1 stop11h 32m

$298

SeattleBuffalo

SEA - BUF

SEABUF

Seattle/Tacoma Intl

Fri 9/11

11:55 pm-11:14 am

1 stop8h 19m

Buffalo

Sat 9/12

2:30 pm-10:38 pm

1 stop11h 08m

$322

SeattleBuffalo

SEA - BUF

SEABUF

Seattle/Tacoma Intl

Tue 9/1

11:10 pm-11:22 am

1 stop9h 12m

Buffalo

Sun 9/6

12:02 pm-6:45 pm

1 stop9h 43m

$346

SeattleBuffalo

SEA - BUF

SEABUF

Seattle/Tacoma Intl

Mon 9/14

9:40 pm-8:24 am

1 stop7h 44m

Buffalo

Fri 9/18

2:30 pm-10:38 pm

1 stop11h 08m

$349
Quickest round-trip

SeattleBuffalo

SEA - BUF

SEABUF

Seattle/Tacoma Intl

Fri 7/3

11:56 pm-9:37 am

1 stop6h 41m

Buffalo

Tue 7/14

5:20 am-11:40 am

1 stop9h 20m

$355

SeattleBuffalo

SEA - BUF

SEABUF

Seattle/Tacoma Intl

Thu 9/24

9:40 pm-8:24 am

1 stop7h 44m

Buffalo

Sun 9/27

2:30 pm-10:38 pm

1 stop11h 08m

$359

SeattleBuffalo

SEA - BUF

SEABUF

Seattle/Tacoma Intl

Fri 9/25

9:40 pm-8:24 am

1 stop7h 44m

Buffalo

Sun 9/27

2:30 pm-10:38 pm

1 stop11h 08m

$364

SeattleBuffalo

SEA - BUF

SEABUF

Seattle/Tacoma Intl

Sun 10/18

11:55 pm-11:14 am

1 stop8h 19m

Buffalo

Fri 10/23

3:10 pm-10:38 pm

1 stop10h 28m

$368

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 typical price of a round-trip flight between Seattle and Buffalo?

What is the cheapest month to fly to Buffalo?

If you aren’t able to travel during the month of October, then book flights to Buffalo from Seattle during September instead. Flights to Buffalo in September, while not as cheap as those in October, still average around $381.

How far in advance should I book a flight from Seattle 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 $501 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 $402 on momondo.

Can stopping save me money on Seattle to Buffalo flights?

You could potentially save up to 36% on your flight if you consider stops on a Seattle to Buffalo flight.

How have Seattle to Buffalo flight prices changed over time?

As of June 2026, prices for Seattle to Buffalo flights are approximately 61% 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 11m

Direct flights

None
The fastest flight from Seattle to Buffalo takes 6h 11m
There are no direct flights from Seattle to Buffalo. There are no popular flight routes from Seattle to Buffalo.
Search flight deals

Frequently asked questions about flying from Seattle to Buffalo

  • 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 11m 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
7.1
2,983 reviews
Search JetBlue flights
FrontierPriceFrom $139Free CancellationRating
5.6
2,881 reviews
Search Frontier flights
DeltaPriceFrom $228Free CancellationRating
7.8
8,406 reviews
Search Delta flights
United AirlinesPriceFrom $274Free CancellationRating
7.4
9,844 reviews
Search United Airlines flights
American AirlinesPriceFrom $286Free CancellationRating
7.1
11,670 reviews
Search American Airlines flights
SouthwestPriceFrom $335Free CancellationRating
7.9
4,235 reviews
Search Southwest flights
Alaska AirlinesPriceFrom $696Free CancellationRating
7.9
12,530 reviews
Search Alaska Airlines flights

Traveling to a place near Buffalo?

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

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