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Cheap flights from Buffalo to Seattle from $176

1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Buffalo to Seattle

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
2:00 pm - 9:45 amBUF  Buffalo-SEA Seattle/Tacoma Intl
22h 45m2 stops Atlanta Hartsfield-Jackson Las Vegas Harry Reid Intl
Frontier Logo
12:14 pm - 1:15 pmSEA  Seattle/Tacoma Intl-BUF Buffalo
22h 01m2 stops Las Vegas Harry Reid Intl Atlanta Hartsfield-Jackson
$339Frontier
Wed, Oct 28 - Tue, Nov 3
American Airlines Logo
11:38 am - 6:06 pmBUF  Buffalo-SEA Seattle/Tacoma Intl
9h 28m1 stop Charlotte Douglas
American Airlines Logo
6:00 am - 7:03 pmSEA  Seattle/Tacoma Intl-BUF Buffalo
10h 03m1 stop Charlotte Douglas
$376American Airlines
Thu, Oct 22 - Wed, Oct 28
Delta Logo
5:55 pm - 10:05 pmBUF  Buffalo-SEA Seattle/Tacoma Intl
7h 10m1 stop Detroit Metropolitan Wayne County
Delta Logo
9:55 pm - 10:22 amSEA  Seattle/Tacoma Intl-BUF Buffalo
9h 27m1 stop New York John F Kennedy Intl
$377Delta
Tue, Feb 16 - Mon, Feb 22
Delta Logo
5:20 pm - 11:52 pmBUF  Buffalo-SEA Seattle/Tacoma Intl
9h 32m1 stop Atlanta Hartsfield-Jackson
Delta Logo
7:15 am - 6:56 pmSEA  Seattle/Tacoma Intl-BUF Buffalo
8h 41m1 stop New York John F Kennedy Intl
$377Delta
Tue, Oct 27 - Tue, Nov 3
American Airlines Logo
12:55 pm - 9:42 pmBUF  Buffalo-SEA Seattle/Tacoma Intl
11h 47m1 stop Charlotte Douglas
American Airlines Logo
11:34 pm - 10:48 amSEA  Seattle/Tacoma Intl-BUF Buffalo
8h 14m1 stop Chicago O'Hare Intl
$377American Airlines
Tue, Oct 27 - Tue, Nov 3
United Airlines Logo
8:50 am - 1:54 pmBUF  Buffalo-SEA Seattle/Tacoma Intl
8h 04m1 stop Denver Intl
United Airlines Logo
5:05 am - 5:02 pmSEA  Seattle/Tacoma Intl-BUF Buffalo
8h 57m2 stops Denver Intl Chicago O'Hare Intl
$382United Airlines
Tue, Oct 27 - Tue, Nov 3
United Airlines Logo
8:50 am - 4:27 pmBUF  Buffalo-SEA Seattle/Tacoma Intl
10h 37m2 stops Denver Intl San Francisco
United Airlines Logo
10:56 pm - 9:42 amSEA  Seattle/Tacoma Intl-BUF Buffalo
7h 46m1 stop Chicago O'Hare Intl
$382United Airlines
Wed, Oct 28 - Tue, Nov 3
Southwest Logo
7:35 pm - 12:40 amBUF  Buffalo-SEA Seattle/Tacoma Intl
8h 05m1 stop Chicago Midway
Southwest Logo
12:15 am - 1:25 pmSEA  Seattle/Tacoma Intl-BUF Buffalo
10h 10m2 stops Chicago Midway Baltimore/Washington
$382Southwest
Thu, Oct 29 - Sun, Nov 1
Southwest Logo
2:50 pm - 12:40 amBUF  Buffalo-SEA Seattle/Tacoma Intl
12h 50m2 stops Baltimore/Washington Chicago Midway
Southwest Logo
12:15 am - 1:25 pmSEA  Seattle/Tacoma Intl-BUF Buffalo
10h 10m2 stops Chicago Midway Baltimore/Washington
$387Southwest
Thu, Oct 29 - Sun, Nov 1
Frontier Logo
6:51 pm - 3:12 pmBUF  Buffalo-SEA Seattle/Tacoma Intl
23h 21m2 stops Orlando Denver Intl
Frontier Logo
8:00 pm - 12:59 pmSEA  Seattle/Tacoma Intl-BUF Buffalo
13h 59m2 stops Los Angeles Atlanta Hartsfield-Jackson
$559Frontier
Tue, Oct 20 - Fri, Oct 23

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Delta flights from Buffalo to Seattle

Our best Delta deals on Buffalo to Seattle flight tickets
Delta
Oct 29
BUF5:20 pmBuffalo
9h 32m
1 stop
SEA11:52 pmSeattle/Tacoma Intl
Nov 3
SEA10:59 pmSeattle/Tacoma Intl
8h 39m
1 stop
BUF10:38 amBuffalo
$377
Delta
Nov 13
BUF6:35 amBuffalo
7h 34m
1 stop
SEA11:09 amSeattle/Tacoma Intl
Nov 16
SEA11:40 pmSeattle/Tacoma Intl
8h 26m
1 stop
BUF11:06 amBuffalo
$393
Delta
Oct 23
BUF3:53 pmBuffalo
10h 11m
1 stop
SEA11:04 pmSeattle/Tacoma Intl
Oct 24
SEA11:45 amSeattle/Tacoma Intl
7h 53m
1 stop
BUF10:38 pmBuffalo
$449

United Airlines flights from Buffalo to Seattle

Our best United Airlines deals on Buffalo to Seattle flight tickets
United Airlines
Oct 27
BUF10:51 amBuffalo
11h 12m
2 stops
SEA7:03 pmSeattle/Tacoma Intl
Nov 3
SEA11:15 pmSeattle/Tacoma Intl
7h 53m
1 stop
BUF10:08 amBuffalo
$382
United Airlines
Oct 22
BUF5:45 pmBuffalo
8h 11m
1 stop
SEA10:56 pmSeattle/Tacoma Intl
Nov 1
SEA5:05 amSeattle/Tacoma Intl
8h 57m
2 stops
BUF5:02 pmBuffalo
$437
United Airlines
Nov 23
BUF2:55 pmBuffalo
11h 12m
2 stops
SEA11:07 pmSeattle/Tacoma Intl
Nov 30
SEA10:56 pmSeattle/Tacoma Intl
7h 48m
1 stop
BUF9:44 amBuffalo
$460

momondo Fare Finder

 
Use the filters below to find and compare flights from Buffalo to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BuffaloSeattle

BUF Buffalo - SEA Seattle/Tacoma Intl

BUFSEA

Buffalo

Wed 10/28

2:00 pm-9:45 am

2 stops22h 45m

Seattle/Tacoma Intl

Tue 11/3

12:14 pm-1:15 pm

2 stops22h 01m

$339

BuffaloSeattle

BUF Buffalo - SEA Seattle/Tacoma Intl

BUFSEA

Buffalo

Thu 10/22

11:38 am-6:06 pm

1 stop9h 28m

Seattle/Tacoma Intl

Wed 10/28

6:00 am-7:03 pm

1 stop10h 03m

$376
Quickest round-trip

BuffaloSeattle

BUF Buffalo - SEA Seattle/Tacoma Intl

BUFSEA

Buffalo

Tue 2/16

5:55 pm-10:05 pm

1 stop7h 10m

Seattle/Tacoma Intl

Mon 2/22

9:55 pm-10:22 am

1 stop9h 27m

$377

BuffaloSeattle

BUF Buffalo - SEA Seattle/Tacoma Intl

BUFSEA

Buffalo

Tue 10/27

5:20 pm-11:52 pm

1 stop9h 32m

Seattle/Tacoma Intl

Tue 11/3

7:15 am-6:56 pm

1 stop8h 41m

$377

BuffaloSeattle

BUF Buffalo - SEA Seattle/Tacoma Intl

BUFSEA

Buffalo

Tue 10/27

12:55 pm-9:42 pm

1 stop11h 47m

Seattle/Tacoma Intl

Tue 11/3

11:34 pm-10:48 am

1 stop8h 14m

$377

BuffaloSeattle

BUF Buffalo - SEA Seattle/Tacoma Intl

BUFSEA

Buffalo

Tue 10/27

8:50 am-1:54 pm

1 stop8h 04m

Seattle/Tacoma Intl

Tue 11/3

5:05 am-5:02 pm

2 stops8h 57m

$382

BuffaloSeattle

BUF Buffalo - SEA Seattle/Tacoma Intl

BUFSEA

Buffalo

Wed 10/28

8:50 am-4:27 pm

2 stops10h 37m

Seattle/Tacoma Intl

Tue 11/3

10:56 pm-9:42 am

1 stop7h 46m

$382

BuffaloSeattle

BUF Buffalo - SEA Seattle/Tacoma Intl

BUFSEA

Buffalo

Thu 10/29

7:35 pm-12:40 am

1 stop8h 05m

Seattle/Tacoma Intl

Sun 11/1

12:15 am-1:25 pm

2 stops10h 10m

$382

BuffaloSeattle

BUF Buffalo - SEA Seattle/Tacoma Intl

BUFSEA

Buffalo

Thu 10/29

2:50 pm-12:40 am

2 stops12h 50m

Seattle/Tacoma Intl

Sun 11/1

12:15 am-1:25 pm

2 stops10h 10m

$387

BuffaloSeattle

BUF Buffalo - SEA Seattle/Tacoma Intl

BUFSEA

Buffalo

Tue 10/20

6:51 pm-3:12 pm

2 stops23h 21m

Seattle/Tacoma Intl

Fri 10/23

8:00 pm-12:59 pm

2 stops13h 59m

$559

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 Seattle from

How to get the cheapest flight ticket from Buffalo to Seattle

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 Buffalo and Seattle?

Prices are currently low for flights on this route.

Typical prices usually range from $420 to $633.
The lowest price recently found on this route was $339.

What is the cheapest month to fly to Seattle?

In general, February is the cheapest month to fly from Buffalo to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $384. If you don’t want to visit Seattle in February, then you should wait until March to fly from Buffalo, when ticket prices are also cheap, with an average price of $436.

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

You are more likely to see cheaper flights to Seattle from Buffalo when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $498 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Buffalo for as low as $389 on momondo.

How have Buffalo to Seattle flight prices changed over time?

As of October 2026, prices for Buffalo to Seattle flights are approximately 33% more expensive when compared to flights at the same time last year.

When to book flights from Buffalo to Seattle

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

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

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

Best Price Found

$176

Fastest flight time

7h 10m

Direct flights

None
The best one-way flight to Seattle from Buffalo in the past 72 hours is $176. The best round-trip flight deal from Buffalo to Seattle found on momondo in the last 72 hours is $339.
The fastest flight from Buffalo to Seattle takes 7h 10m
There are no direct flights from Buffalo to Seattle. There are no popular flight routes from Buffalo to Seattle.
Search flight deals

Frequently asked questions about flying from Buffalo to Seattle

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

    A flight from Buffalo to Seattle/Tacoma Intl will travel around 2109.4 mi. In terms of flight time, this usually takes a little over 7h 10m.

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

    Prices for flights from Buffalo Airport to Seattle/Tacoma Intl Airport are updated daily.

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Buffalo Airport to Seattle/Tacoma Intl Airport.

  • What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

    The required travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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

Best airlines flying from Buffalo to Seattle

Compare and see reviews for airlines that fly from Buffalo to Seattle with momondo
Airline
Rating
Free Cancellation
Price
JetBluePriceFrom $227Free CancellationRating
7.1
3,044 reviews
Search JetBlue flights
DeltaPriceFrom $238Free CancellationRating
7.8
8,630 reviews
Search Delta flights
SouthwestPriceFrom $368Free CancellationRating
7.9
4,215 reviews
Search Southwest flights
United AirlinesPriceFrom $371Free CancellationRating
7.4
10,280 reviews
Search United Airlines flights
American AirlinesPriceFrom $373Free CancellationRating
7.0
12,127 reviews
Search American Airlines flights

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
Leavenworth
SeaTac
Ocean Shores
Renton
Kent
Redmond
Olympia
Lakewood
Federal Way
Puyallup
Fife
Lynnwood
Tukwila
Cle Elum
Marysville
Lacey
Centralia
Kirkland
Shoreline

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Buffalo to Seattle. momondo saves you time and could save you money on your trip.

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

momondo does allow users to show only those flights to Seattle from Buffalo which offer a flexible booking policy as well as other useful filters and features.

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

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

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

Yes momondo offers price alerts on flights to Seattle from Buffalo. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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