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Cheap flights from Buffalo to Seattle from $130

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Buffalo to Seattle departing on 4/22. 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 Buffalo to Seattle

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
4:59 pm - 12:16 am
BUF
-
SEA
10h 17m
1 stop
Delta Logo
10:35 pm - 11:13 am
SEA
-
BUF
9h 38m
1 stop
$305Delta
Wed, May 6 - Tue, May 19
Southwest Logo
3:10 pm - 10:30 pm
BUF
-
SEA
10h 20m
2 stops
Southwest Logo
11:45 pm - 10:20 am
SEA
-
BUF
7h 35m
1 stop
$310Southwest
Tue, Apr 28 - Tue, May 12
United Airlines Logo
6:02 pm - 10:42 pm
BUF
-
SEA
7h 40m
1 stop
United Airlines Logo
11:59 pm - 10:10 am
SEA
-
BUF
7h 11m
1 stop
$337United Airlines
Wed, Apr 22 - Mon, Apr 27
Southwest Logo
8:00 pm - 12:05 am
BUF
-
SEA
7h 05m
1 stop
Southwest Logo
9:25 pm - 8:00 am
SEA
-
BUF
7h 35m
1 stop
$338Southwest
Mon, Jun 1 - Tue, Jun 9
Southwest Logo
8:00 pm - 12:05 am
BUF
-
SEA
7h 05m
1 stop
Southwest Logo
7:30 pm - 8:00 am
SEA
-
BUF
9h 30m
2 stops
$343Southwest
Mon, Jun 1 - Tue, Jun 9
American Airlines Logo
3:01 pm - 10:38 pm
BUF
-
SEA
10h 37m
1 stop
American Airlines Logo
10:27 am - 9:57 pm
SEA
-
BUF
8h 30m
1 stop
$348American Airlines
Sat, May 16 - Tue, May 26
American Airlines Logo
6:00 pm - 10:38 pm
BUF
-
SEA
7h 38m
1 stop
American Airlines Logo
11:41 am - 11:08 pm
SEA
-
BUF
8h 27m
1 stop
$356American Airlines
Wed, Apr 22 - Sat, Apr 25
American Airlines Logo
6:00 am - 12:56 pm
BUF
-
SEA
9h 56m
1 stop
American Airlines Logo
1:46 pm - 12:14 am
SEA
-
BUF
7h 28m
1 stop
$358American Airlines
Thu, May 28 - Tue, Jun 9
United Airlines Logo
11:02 am - 6:32 pm
BUF
-
SEA
10h 30m
2 stops
United Airlines Logo
11:53 pm - 9:41 am
SEA
-
BUF
6h 48m
1 stop
$360United Airlines
Wed, May 6 - Tue, May 19
American Airlines Logo
3:01 pm - 10:38 pm
BUF
-
SEA
10h 37m
1 stop
American Airlines Logo
7:10 am - 6:41 pm
SEA
-
BUF
8h 31m
1 stop
$362American Airlines
Sat, May 16 - Tue, May 26

American Airlines flights from Buffalo to Seattle

Our best American Airlines deals on Buffalo to Seattle flight tickets
American Airlines
May 16
BUF3:01 pmBuffalo
10h 37m
1 stop
SEA10:38 pmSeattle/Tacoma Intl
May 26
SEA10:27 amSeattle/Tacoma Intl
8h 30m
1 stop
BUF9:57 pmBuffalo
$348
American Airlines
Apr 22
BUF6:00 pmBuffalo
7h 38m
1 stop
SEA10:38 pmSeattle/Tacoma Intl
Apr 25
SEA11:41 amSeattle/Tacoma Intl
8h 27m
1 stop
BUF11:08 pmBuffalo
$356
American Airlines
May 28
BUF6:00 amBuffalo
9h 56m
1 stop
SEA12:56 pmSeattle/Tacoma Intl
Jun 9
SEA1:46 pmSeattle/Tacoma Intl
7h 28m
1 stop
BUF12:14 amBuffalo
$358

Delta flights from Buffalo to Seattle

Our best Delta deals on Buffalo to Seattle flight tickets
Delta
May 6
BUF4:59 pmBuffalo
10h 17m
1 stop
SEA12:16 amSeattle/Tacoma Intl
May 19
SEA10:35 pmSeattle/Tacoma Intl
9h 38m
1 stop
BUF11:13 amBuffalo
$305
Delta
Apr 20
BUF3:53 pmBuffalo
8h 57m
1 stop
SEA9:50 pmSeattle/Tacoma Intl
Apr 27
SEA9:45 pmSeattle/Tacoma Intl
10h 16m
1 stop
BUF11:01 amBuffalo
$392
Delta
Apr 13
BUF4:59 pmBuffalo
9h 54m
1 stop
SEA11:53 pmSeattle/Tacoma Intl
Apr 20
SEA9:45 pmSeattle/Tacoma Intl
10h 16m
1 stop
BUF11:01 amBuffalo
$414

momondo Fare Finder

 
Customize your flight search to find flights from Buffalo to Seattle 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 March 27, 2026.
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 - SEA

BUFSEA

Buffalo

Wed 5/6

4:59 pm-12:16 am

1 stop10h 17m

Seattle/Tacoma Intl

Tue 5/19

10:35 pm-11:13 am

1 stop9h 38m

$305

BuffaloSeattle

BUF - SEA

BUFSEA

Buffalo

Tue 4/28

3:10 pm-10:30 pm

2 stops10h 20m

Seattle/Tacoma Intl

Tue 5/12

11:45 pm-10:20 am

1 stop7h 35m

$310

BuffaloSeattle

BUF - SEA

BUFSEA

Buffalo

Wed 4/22

6:02 pm-10:42 pm

1 stop7h 40m

Seattle/Tacoma Intl

Mon 4/27

11:59 pm-10:10 am

1 stop7h 11m

$337
Quickest round-trip

BuffaloSeattle

BUF - SEA

BUFSEA

Buffalo

Mon 6/1

8:00 pm-12:05 am

1 stop7h 05m

Seattle/Tacoma Intl

Tue 6/9

9:25 pm-8:00 am

1 stop7h 35m

$338

BuffaloSeattle

BUF - SEA

BUFSEA

Buffalo

Mon 6/1

8:00 pm-12:05 am

1 stop7h 05m

Seattle/Tacoma Intl

Tue 6/9

7:30 pm-8:00 am

2 stops9h 30m

$343

BuffaloSeattle

BUF - SEA

BUFSEA

Buffalo

Sat 5/16

3:01 pm-10:38 pm

1 stop10h 37m

Seattle/Tacoma Intl

Tue 5/26

10:27 am-9:57 pm

1 stop8h 30m

$348

BuffaloSeattle

BUF - SEA

BUFSEA

Buffalo

Wed 4/22

6:00 pm-10:38 pm

1 stop7h 38m

Seattle/Tacoma Intl

Sat 4/25

11:41 am-11:08 pm

1 stop8h 27m

$356

BuffaloSeattle

BUF - SEA

BUFSEA

Buffalo

Thu 5/28

6:00 am-12:56 pm

1 stop9h 56m

Seattle/Tacoma Intl

Tue 6/9

1:46 pm-12:14 am

1 stop7h 28m

$358

BuffaloSeattle

BUF - SEA

BUFSEA

Buffalo

Wed 5/6

11:02 am-6:32 pm

2 stops10h 30m

Seattle/Tacoma Intl

Tue 5/19

11:53 pm-9:41 am

1 stop6h 48m

$360

BuffaloSeattle

BUF - SEA

BUFSEA

Buffalo

Sat 5/16

3:01 pm-10:38 pm

1 stop10h 37m

Seattle/Tacoma Intl

Tue 5/26

7:10 am-6:41 pm

1 stop8h 31m

$362

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?

What is the cheapest month to fly to Seattle?

In general, October 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 $334. If you don’t want to visit Seattle in October, then you should wait until September to fly from Buffalo, when ticket prices are also cheap, with an average price of $376.

How far in advance should I book a flight 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 $443 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 $352 on momondo.

How have Buffalo to Seattle flight prices changed over time?

As of March 2026, prices for Buffalo to Seattle flights are approximately 18% 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

Fastest flight time

7h 14m

Direct flights

None
The fastest flight from Buffalo to Seattle takes 7h 14m
There are no direct flights from Buffalo to Seattle. There are no popular flight routes from Buffalo to Seattle.
Search flight deals

  • 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 14m.

  • 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 $145Free CancellationRating
7.2
2,909 reviews
Search JetBlue flights
FrontierPriceFrom $150Free CancellationRating
5.7
3,013 reviews
Search Frontier flights
DeltaPriceFrom $173Free CancellationRating
7.9
8,343 reviews
Search Delta flights
United AirlinesPriceFrom $268Free CancellationRating
7.4
9,493 reviews
Search United Airlines flights
American AirlinesPriceFrom $324Free CancellationRating
7.1
11,509 reviews
Search American Airlines flights
SouthwestPriceFrom $335Free CancellationRating
8.0
4,332 reviews
Search Southwest 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
Olympia
Lynnwood
Kent
Redmond
Marysville
Puyallup
Lakewood
Cle Elum
Tukwila
Federal Way
Centralia
Fife
Westport
Kirkland
Tumwater

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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