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Cheap flights from Buffalo to Seattle from $164

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 1/7. 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
0 bags

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Cheap round-trip flights

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JetBlue Logo
12:25 pm - 8:53 pmBUF-SEA
11h 28m1 stop
JetBlue Logo
11:30 am - 10:57 pmSEA-BUF
8h 27m1 stop
$300JetBlue
Find Deal
Sat, May 16 - Tue, May 26
Delta Logo
6:03 am - 10:42 amBUF-SEA
7h 39m1 stop
Delta Logo
6:05 am - 4:59 pmSEA-BUF
7h 54m1 stop
$327Delta
Find Deal
Thu, Jan 29 - Mon, Feb 2
JetBlue Logo
12:25 pm - 8:53 pmBUF-SEA
11h 28m1 stop
JetBlue Logo
11:30 am - 10:57 pmSEA-BUF
8h 27m1 stop
$330JetBlue
Find Deal
Thu, Apr 30 - Sun, May 3
JetBlue Logo
12:25 pm - 8:53 pmBUF-SEA
11h 28m1 stop
JetBlue Logo
11:30 am - 10:57 pmSEA-BUF
8h 27m1 stop
$332JetBlue
Find Deal
Sat, May 2 - Sun, May 10
American Airlines Logo
1:43 pm - 9:08 pmBUF-SEA
10h 25m1 stop
American Airlines Logo
11:18 pm - 10:59 amSEA-BUF
8h 41m1 stop
$339American Airlines
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Sun, Feb 15 - Thu, Feb 19
Delta Logo
3:43 pm - 10:25 pmBUF-SEA
9h 42m1 stop
Delta Logo
11:10 pm - 11:22 amSEA-BUF
9h 12m1 stop
$359Delta
Find Deal
Sat, Jan 10 - Sat, Jan 17
American Airlines Logo
12:58 pm - 7:04 pmBUF-SEA
9h 06m1 stop
American Airlines Logo
8:04 am - 9:16 pmSEA-BUF
10h 12m2 stops
$365American Airlines
Find Deal
Sat, Jan 10 - Sat, Jan 17
Southwest Logo
12:20 pm - 10:30 pmBUF-SEA
13h 10m2 stops
Southwest Logo
5:15 am - 9:15 pmSEA-BUF
13h 00m2 stops
$366Southwest
Find Deal
Tue, Jan 13 - Thu, Jan 15
Delta Logo
3:55 pm - 10:23 pmBUF-SEA
9h 28m1 stop
Delta Logo
11:50 am - 10:58 pmSEA-BUF
8h 08m1 stop
$367Delta
Find Deal
Tue, Dec 9 - Sat, Dec 13
Delta Logo
5:44 pm - 9:49 pmBUF-SEA
7h 05m1 stop
Delta Logo
11:10 pm - 5:04 pmSEA-BUF
14h 54m2 stops
$370Delta
Find Deal
Thu, Jan 29 - Mon, Feb 2

American Airlines flights from Buffalo to Seattle

Our best American Airlines deals on Buffalo to Seattle flight tickets
American Airlines
Feb 15
BUF1:43 pmBuffalo
10h 25m
1 stop
SEA9:08 pmSeattle/Tacoma Intl
Feb 19
SEA11:18 pmSeattle/Tacoma Intl
8h 41m
1 stop
BUF10:59 amBuffalo
$339
Find similar
American Airlines
Jan 10
BUF12:58 pmBuffalo
9h 06m
1 stop
SEA7:04 pmSeattle/Tacoma Intl
Jan 17
SEA8:04 amSeattle/Tacoma Intl
10h 12m
2 stops
BUF9:16 pmBuffalo
$365
Find similar
American Airlines
Jan 10
BUF12:35 pmBuffalo
12h 45m
2 stops
SEA10:20 pmSeattle/Tacoma Intl
Jan 17
SEA8:04 amSeattle/Tacoma Intl
10h 12m
2 stops
BUF9:16 pmBuffalo
$371
Find similar

JetBlue flights from Buffalo to Seattle

Our best JetBlue deals on Buffalo to Seattle flight tickets
JetBlue
May 16
BUF12:25 pmBuffalo
11h 28m
1 stop
SEA8:53 pmSeattle/Tacoma Intl
May 26
SEA11:30 amSeattle/Tacoma Intl
8h 27m
1 stop
BUF10:57 pmBuffalo
$300
Find similar
JetBlue
Apr 30
BUF12:25 pmBuffalo
11h 28m
1 stop
SEA8:53 pmSeattle/Tacoma Intl
May 3
SEA11:30 amSeattle/Tacoma Intl
8h 27m
1 stop
BUF10:57 pmBuffalo
$330
Find similar
JetBlue
May 2
BUF12:25 pmBuffalo
11h 28m
1 stop
SEA8:53 pmSeattle/Tacoma Intl
May 10
SEA11:30 amSeattle/Tacoma Intl
8h 27m
1 stop
BUF10:57 pmBuffalo
$332
Find similar

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 November 26, 2025.
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

BuffaloSeattle

BUF - SEA

BUFSEA

Buffalo

Sat 5/16

12:25 pm-8:53 pm

1 stop11h 28m

Seattle/Tacoma Intl

Tue 5/26

11:30 am-10:57 pm

1 stop8h 27m

$300

BuffaloSeattle

BUF - SEA

BUFSEA

Buffalo

Thu 1/29

6:03 am-10:42 am

1 stop7h 39m

Seattle/Tacoma Intl

Mon 2/2

6:05 am-4:59 pm

1 stop7h 54m

$327

BuffaloSeattle

BUF - SEA

BUFSEA

Buffalo

Thu 4/30

12:25 pm-8:53 pm

1 stop11h 28m

Seattle/Tacoma Intl

Sun 5/3

11:30 am-10:57 pm

1 stop8h 27m

$330

BuffaloSeattle

BUF - SEA

BUFSEA

Buffalo

Sat 5/2

12:25 pm-8:53 pm

1 stop11h 28m

Seattle/Tacoma Intl

Sun 5/10

11:30 am-10:57 pm

1 stop8h 27m

$332

BuffaloSeattle

BUF - SEA

BUFSEA

Buffalo

Sun 2/15

1:43 pm-9:08 pm

1 stop10h 25m

Seattle/Tacoma Intl

Thu 2/19

11:18 pm-10:59 am

1 stop8h 41m

$339

BuffaloSeattle

BUF - SEA

BUFSEA

Buffalo

Sat 1/10

3:43 pm-10:25 pm

1 stop9h 42m

Seattle/Tacoma Intl

Sat 1/17

11:10 pm-11:22 am

1 stop9h 12m

$359

BuffaloSeattle

BUF - SEA

BUFSEA

Buffalo

Sat 1/10

12:58 pm-7:04 pm

1 stop9h 06m

Seattle/Tacoma Intl

Sat 1/17

8:04 am-9:16 pm

2 stops10h 12m

$365

BuffaloSeattle

BUF - SEA

BUFSEA

Buffalo

Tue 1/13

12:20 pm-10:30 pm

2 stops13h 10m

Seattle/Tacoma Intl

Thu 1/15

5:15 am-9:15 pm

2 stops13h 00m

$366

BuffaloSeattle

BUF - SEA

BUFSEA

Buffalo

Tue 12/9

3:55 pm-10:23 pm

1 stop9h 28m

Seattle/Tacoma Intl

Sat 12/13

11:50 am-10:58 pm

1 stop8h 08m

$367

BuffaloSeattle

BUF - SEA

BUFSEA

Buffalo

Thu 1/29

5:44 pm-9:49 pm

1 stop7h 05m

Seattle/Tacoma Intl

Mon 2/2

11:10 pm-5:04 pm

2 stops14h 54m

$370

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 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.

What is the cheapest day to depart on your flight to Seattle?

On average, the least expensive day to fly to Seattle from Buffalo is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $473. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from Buffalo because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $600.

What is the cheapest time of day to depart on your flight to Seattle?

Flying to Seattle from Buffalo in the evening is the least expensive time of day to depart. momondo users have found prices as low as $400 when looking at flights departing in the evening. Flights to Seattle are more costly in the afternoon, with an average ticket price of $495. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Buffalo to Seattle/Tacoma Intl flight route?

Fly from Buffalo to Seattle/Tacoma Intl for the best Buffalo - Seattle/Tacoma Intl flight prices

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 $460 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 $381 on momondo.

What cabin class options are available on Buffalo to Seattle/Tacoma Intl flights?

There is only 1 cabin class available to choose from on Buffalo to Seattle/Tacoma Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Buffalo to Seattle flight prices changed over time?

As of November 2025, prices for Buffalo to Seattle flights are approximately 37% 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 06m

Direct flights

None
The fastest flight from Buffalo to Seattle takes 7h 06m
There are no direct flights from Buffalo to Seattle. There are no popular flight routes from Buffalo to Seattle.
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  • 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 05m.

  • 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 plane model from Buffalo to Seattle?

  • 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 $125Free CancellationRating
7.2
2,905 reviews
Search JetBlue flights
FrontierPriceFrom $155Free CancellationRating
5.8
3,101 reviews
Search Frontier flights
DeltaPriceFrom $324Free CancellationRating
7.9
8,001 reviews
Search Delta flights
American AirlinesPriceFrom $328Free CancellationRating
7.2
11,038 reviews
Search American Airlines flights
United AirlinesPriceFrom $344Free CancellationRating
7.4
9,047 reviews
Search United Airlines flights
SouthwestPriceFrom $345Free CancellationRating
8.0
4,253 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
Marysville
Puyallup
Redmond
Tukwila
Cle Elum
Lakewood
Federal Way
Fife
Centralia
Kirkland
Westport
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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