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Cheap flights from Seattle to Buffalo from $135

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 10/6. 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.
Delta Logo
5:30 am - 3:14 pmSEA  Seattle/Tacoma Intl-BUF Buffalo
6h 44m1 stop Detroit Metropolitan Wayne County
Delta Logo
6:20 am - 10:26 amBUF  Buffalo-SEA Seattle/Tacoma Intl
7h 06m1 stop Detroit Metropolitan Wayne County
$367Delta
Sat, Sep 5 - Fri, Sep 11
Southwest Logo
11:05 pm - 11:55 amSEA  Seattle/Tacoma Intl-BUF Buffalo
9h 50m1 stop Chicago Midway
Southwest Logo
7:10 pm - 11:55 pmBUF  Buffalo-SEA Seattle/Tacoma Intl
7h 45m1 stop Chicago Midway
$372Southwest
Sat, Sep 5 - Fri, Sep 11
American Airlines Logo
6:15 am - 5:18 pmSEA  Seattle/Tacoma Intl-BUF Buffalo
8h 03m1 stop Chicago O'Hare Intl
American Airlines Logo
7:59 am - 12:50 pmBUF  Buffalo-SEA Seattle/Tacoma Intl
7h 51m1 stop Chicago O'Hare Intl
$372American Airlines
Wed, Sep 9 - Fri, Sep 11
American Airlines Logo
10:15 am - 11:01 pmSEA  Seattle/Tacoma Intl-BUF Buffalo
9h 46m1 stop Dallas/Fort Worth
American Airlines Logo
3:40 pm - 10:49 pmBUF  Buffalo-SEA Seattle/Tacoma Intl
10h 09m1 stop Charlotte Douglas
$372American Airlines
Tue, Sep 1 - Sun, Sep 6
Delta Logo
5:30 am - 3:14 pmSEA  Seattle/Tacoma Intl-BUF Buffalo
6h 44m1 stop Detroit Metropolitan Wayne County
Delta Logo
3:53 pm - 11:20 pmBUF  Buffalo-SEA Seattle/Tacoma Intl
10h 27m1 stop New York John F Kennedy Intl
$372Delta
Sat, Sep 5 - Wed, Sep 9
Southwest Logo
10:30 pm - 11:10 amSEA  Seattle/Tacoma Intl-BUF Buffalo
9h 40m1 stop Baltimore/Washington
Southwest Logo
3:55 pm - 11:00 pmBUF  Buffalo-SEA Seattle/Tacoma Intl
10h 05m2 stops Baltimore/Washington Denver Intl
$377Southwest
Wed, Sep 9 - Fri, Sep 11
United Airlines Logo
8:10 am - 7:00 pmSEA  Seattle/Tacoma Intl-BUF Buffalo
7h 50m1 stop Washington, D.C. Dulles Intl
United Airlines Logo
6:55 am - 11:32 amBUF  Buffalo-SEA Seattle/Tacoma Intl
7h 37m1 stop Chicago O'Hare Intl
$379United Airlines
Sat, Aug 29 - Sat, Sep 5
United Airlines Logo
10:58 pm - 9:55 amSEA  Seattle/Tacoma Intl-BUF Buffalo
7h 57m1 stop Newark
United Airlines Logo
1:56 pm - 7:15 pmBUF  Buffalo-SEA Seattle/Tacoma Intl
8h 19m1 stop Chicago O'Hare Intl
$384United Airlines
Tue, Sep 1 - Wed, Sep 9
JetBlue Logo
11:42 pm - 1:29 pmSEA  Seattle/Tacoma Intl-BUF Buffalo
10h 47m1 stop Boston Logan Intl
JetBlue Logo
12:19 pm - 8:44 pmBUF  Buffalo-SEA Seattle/Tacoma Intl
11h 25m1 stop New York John F Kennedy Intl
$408JetBlue
Wed, Sep 16 - Sun, Sep 20
JetBlue Logo
11:42 pm - 1:29 pmSEA  Seattle/Tacoma Intl-BUF Buffalo
10h 47m1 stop Boston Logan Intl
JetBlue Logo
12:19 pm - 8:44 pmBUF  Buffalo-SEA Seattle/Tacoma Intl
11h 25m1 stop New York John F Kennedy Intl
$408JetBlue
Sat, Sep 19 - Tue, Sep 29

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JetBlue flights from Seattle to Buffalo

Our best JetBlue deals on Seattle to Buffalo flight tickets
JetBlue
Sep 4
SEA11:40 amSeattle/Tacoma Intl
9h 18m
1 stop
BUF11:58 pmBuffalo
Sep 10
BUF2:23 pmBuffalo
11h 14m
1 stop
SEA10:37 pmSeattle/Tacoma Intl
$419
JetBlue
Sep 25
SEA11:42 pmSeattle/Tacoma Intl
10h 47m
1 stop
BUF1:29 pmBuffalo
Sep 28
BUF2:23 pmBuffalo
11h 14m
1 stop
SEA10:37 pmSeattle/Tacoma Intl
$426
JetBlue
Sep 19
SEA11:42 pmSeattle/Tacoma Intl
10h 47m
1 stop
BUF1:29 pmBuffalo
Sep 26
BUF2:23 pmBuffalo
11h 14m
1 stop
SEA10:37 pmSeattle/Tacoma Intl
$429

Southwest flights from Seattle to Buffalo

Our best Southwest deals on Seattle to Buffalo flight tickets
Southwest
Sep 5
SEA11:05 pmSeattle/Tacoma Intl
9h 50m
1 stop
BUF11:55 amBuffalo
Sep 11
BUF3:55 pmBuffalo
10h 05m
2 stops
SEA11:00 pmSeattle/Tacoma Intl
$378
Southwest
Sep 1
SEA11:05 pmSeattle/Tacoma Intl
10h 25m
2 stops
BUF12:30 pmBuffalo
Sep 9
BUF3:00 pmBuffalo
11h 10m
2 stops
SEA11:10 pmSeattle/Tacoma Intl
$394
Southwest
Sep 1
SEA11:05 pmSeattle/Tacoma Intl
10h 25m
2 stops
BUF12:30 pmBuffalo
Sep 8
BUF6:25 pmBuffalo
8h 15m
1 stop
SEA11:40 pmSeattle/Tacoma Intl
$396

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 August 6, 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
Quickest round-trip

SeattleBuffalo

SEA Seattle/Tacoma Intl - BUF Buffalo

SEABUF

Seattle/Tacoma Intl

Sat 9/5

5:30 am-3:14 pm

1 stop6h 44m

Buffalo

Fri 9/11

6:20 am-10:26 am

1 stop7h 06m

$367

SeattleBuffalo

SEA Seattle/Tacoma Intl - BUF Buffalo

SEABUF

Seattle/Tacoma Intl

Sat 9/5

11:05 pm-11:55 am

1 stop9h 50m

Buffalo

Fri 9/11

7:10 pm-11:55 pm

1 stop7h 45m

$372

SeattleBuffalo

SEA Seattle/Tacoma Intl - BUF Buffalo

SEABUF

Seattle/Tacoma Intl

Wed 9/9

6:15 am-5:18 pm

1 stop8h 03m

Buffalo

Fri 9/11

7:59 am-12:50 pm

1 stop7h 51m

$372

SeattleBuffalo

SEA Seattle/Tacoma Intl - BUF Buffalo

SEABUF

Seattle/Tacoma Intl

Tue 9/1

10:15 am-11:01 pm

1 stop9h 46m

Buffalo

Sun 9/6

3:40 pm-10:49 pm

1 stop10h 09m

$372

SeattleBuffalo

SEA Seattle/Tacoma Intl - BUF Buffalo

SEABUF

Seattle/Tacoma Intl

Sat 9/5

5:30 am-3:14 pm

1 stop6h 44m

Buffalo

Wed 9/9

3:53 pm-11:20 pm

1 stop10h 27m

$372

SeattleBuffalo

SEA Seattle/Tacoma Intl - BUF Buffalo

SEABUF

Seattle/Tacoma Intl

Wed 9/9

10:30 pm-11:10 am

1 stop9h 40m

Buffalo

Fri 9/11

3:55 pm-11:00 pm

2 stops10h 05m

$377

SeattleBuffalo

SEA Seattle/Tacoma Intl - BUF Buffalo

SEABUF

Seattle/Tacoma Intl

Sat 8/29

8:10 am-7:00 pm

1 stop7h 50m

Buffalo

Sat 9/5

6:55 am-11:32 am

1 stop7h 37m

$379

SeattleBuffalo

SEA Seattle/Tacoma Intl - BUF Buffalo

SEABUF

Seattle/Tacoma Intl

Tue 9/1

10:58 pm-9:55 am

1 stop7h 57m

Buffalo

Wed 9/9

1:56 pm-7:15 pm

1 stop8h 19m

$384

SeattleBuffalo

SEA Seattle/Tacoma Intl - BUF Buffalo

SEABUF

Seattle/Tacoma Intl

Wed 9/16

11:42 pm-1:29 pm

1 stop10h 47m

Buffalo

Sun 9/20

12:19 pm-8:44 pm

1 stop11h 25m

$408

SeattleBuffalo

SEA Seattle/Tacoma Intl - BUF Buffalo

SEABUF

Seattle/Tacoma Intl

Sat 9/19

11:42 pm-1:29 pm

1 stop10h 47m

Buffalo

Tue 9/29

12:19 pm-8:44 pm

1 stop11h 25m

$408

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?

Prices are currently low for flights on this route.

Typical prices usually range from $421 to $646.
The lowest price recently found on this route was $367.

What is the cheapest month to fly to Buffalo?

If you aren’t able to travel during the month of March, then book flights to Buffalo from Seattle during October instead. Flights to Buffalo in October, while not as cheap as those in March, still average around $389.

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 $513 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 $422 on momondo.

Can stopping save me money on Seattle to Buffalo flights?

You could potentially save up to 25% 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 August 2026, prices for Seattle to Buffalo flights are approximately 59% 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

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 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
FrontierPriceFrom $81Free CancellationRating
5.6
2,723 reviews
Search Frontier flights
JetBluePriceFrom $131Free CancellationRating
7.1
3,024 reviews
Search JetBlue flights
United AirlinesPriceFrom $274Free CancellationRating
7.4
10,073 reviews
Search United Airlines flights
DeltaPriceFrom $286Free CancellationRating
7.8
8,499 reviews
Search Delta flights
American AirlinesPriceFrom $286Free CancellationRating
7.1
11,869 reviews
Search American Airlines flights
SouthwestPriceFrom $402Free CancellationRating
8.0
4,221 reviews
Search Southwest flights
Alaska AirlinesPriceFrom $696Free CancellationRating
7.9
12,774 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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