Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Buffalo to Seattle from $152

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 7/29. 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

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Buffalo to Seattle

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
4:46 pm - 10:32 pm
BUF
-
SEA
8h 46m
1 stop
American Airlines Logo
6:00 am - 4:27 pm
SEA
-
BUF
7h 27m
1 stop
$391American Airlines
Tue, Jun 2 - Tue, Jun 9
American Airlines Logo
6:10 pm - 11:50 pm
BUF
-
SEA
8h 40m
1 stop
American Airlines Logo
5:05 am - 3:59 pm
SEA
-
BUF
7h 54m
1 stop
$410American Airlines
Wed, Aug 19 - Wed, Aug 26
American Airlines Logo
7:00 am - 2:57 pm
BUF
-
SEA
10h 57m
1 stop
American Airlines Logo
11:59 pm - 12:21 pm
SEA
-
BUF
9h 22m
1 stop
$411American Airlines
Tue, Sep 1 - Tue, Sep 8
Multiple Airlines Logo
11:41 am - 10:46 pm
BUF
-
SEA
14h 05m
1 stop
Multiple Airlines Logo
7:41 pm - 1:53 pm
SEA
-
BUF
39h 12m
2 stops
$414Multiple Airlines
Thu, Jul 30 - Wed, Aug 5
American Airlines Logo
6:10 pm - 11:50 pm
BUF
-
SEA
8h 40m
1 stop
American Airlines Logo
5:10 am - 6:04 pm
SEA
-
BUF
9h 54m
1 stop
$416American Airlines
Mon, Aug 17 - Tue, Aug 25
American Airlines Logo
6:10 pm - 11:50 pm
BUF
-
SEA
8h 40m
1 stop
American Airlines Logo
5:05 am - 3:59 pm
SEA
-
BUF
7h 54m
1 stop
$417American Airlines
Tue, Aug 11 - Sat, Aug 22
American Airlines Logo
6:10 pm - 11:50 pm
BUF
-
SEA
8h 40m
1 stop
American Airlines Logo
5:05 am - 3:59 pm
SEA
-
BUF
7h 54m
1 stop
$418American Airlines
Tue, Aug 11 - Sat, Aug 22
American Airlines Logo
6:10 pm - 11:50 pm
BUF
-
SEA
8h 40m
1 stop
American Airlines Logo
5:05 am - 3:59 pm
SEA
-
BUF
7h 54m
1 stop
$420American Airlines
Tue, Aug 11 - Sat, Aug 22
Southwest Logo
6:25 pm - 12:35 am
BUF
-
SEA
9h 10m
1 stop
Southwest Logo
7:30 pm - 8:00 am
SEA
-
BUF
9h 30m
2 stops
$421Southwest
Sat, Jun 6 - Tue, Jun 9
Delta Logo
12:16 pm - 8:23 pm
BUF
-
SEA
11h 07m
1 stop
Delta Logo
7:16 am - 6:55 pm
SEA
-
BUF
8h 39m
1 stop
$425Delta
Tue, Aug 18 - Thu, Aug 27

Southwest flights from Buffalo to Seattle

Our best Southwest deals on Buffalo to Seattle flight tickets
Southwest
Jun 6
BUF6:25 pmBuffalo
9h 10m
1 stop
SEA12:35 amSeattle/Tacoma Intl
Jun 9
SEA7:30 pmSeattle/Tacoma Intl
9h 30m
2 stops
BUF8:00 amBuffalo
$421
Southwest
Jun 4
BUF7:55 pmBuffalo
7h 35m
1 stop
SEA12:30 amSeattle/Tacoma Intl
Jun 9
SEA7:30 pmSeattle/Tacoma Intl
9h 30m
2 stops
BUF8:00 amBuffalo
$449
Southwest
Jun 3
BUF6:55 pmBuffalo
8h 15m
1 stop
SEA12:10 amSeattle/Tacoma Intl
Jun 6
SEA7:35 pmSeattle/Tacoma Intl
9h 20m
2 stops
BUF7:55 amBuffalo
$455

JetBlue flights from Buffalo to Seattle

Our best JetBlue deals on Buffalo to Seattle flight tickets
JetBlue
Jul 11
BUF4:57 pmBuffalo
10h 20m
1 stop
SEA12:17 amSeattle/Tacoma Intl
Jul 13
SEA11:12 pmSeattle/Tacoma Intl
8h 20m
1 stop
BUF10:32 amBuffalo
$434
JetBlue
Jun 1
BUF8:00 pmBuffalo
27h 56m
1 stop
SEA8:56 pmSeattle/Tacoma Intl
Jun 9
SEA11:52 pmSeattle/Tacoma Intl
29h 08m
1 stop
BUF8:00 amBuffalo
$457
JetBlue
Jun 10
BUF2:41 pmBuffalo
9h 15m
1 stop
SEA8:56 pmSeattle/Tacoma Intl
Jun 16
SEA11:45 amSeattle/Tacoma Intl
9h 03m
1 stop
BUF11:48 pmBuffalo
$463

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 May 9, 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
Quickest round-trip

BuffaloSeattle

BUF - SEA

BUFSEA

Buffalo

Tue 6/2

4:46 pm-10:32 pm

1 stop8h 46m

Seattle/Tacoma Intl

Tue 6/9

6:00 am-4:27 pm

1 stop7h 27m

$391

BuffaloSeattle

BUF - SEA

BUFSEA

Buffalo

Wed 8/19

6:10 pm-11:50 pm

1 stop8h 40m

Seattle/Tacoma Intl

Wed 8/26

5:05 am-3:59 pm

1 stop7h 54m

$410

BuffaloSeattle

BUF - SEA

BUFSEA

Buffalo

Tue 9/1

7:00 am-2:57 pm

1 stop10h 57m

Seattle/Tacoma Intl

Tue 9/8

11:59 pm-12:21 pm

1 stop9h 22m

$411

BuffaloSeattle

BUF - SEA

BUFSEA

Buffalo

Thu 7/30

11:41 am-10:46 pm

1 stop14h 05m

Seattle/Tacoma Intl

Wed 8/5

7:41 pm-1:53 pm

2 stops39h 12m

$414

BuffaloSeattle

BUF - SEA

BUFSEA

Buffalo

Mon 8/17

6:10 pm-11:50 pm

1 stop8h 40m

Seattle/Tacoma Intl

Tue 8/25

5:10 am-6:04 pm

1 stop9h 54m

$416

BuffaloSeattle

BUF - SEA

BUFSEA

Buffalo

Tue 8/11

6:10 pm-11:50 pm

1 stop8h 40m

Seattle/Tacoma Intl

Sat 8/22

5:05 am-3:59 pm

1 stop7h 54m

$417

BuffaloSeattle

BUF - SEA

BUFSEA

Buffalo

Tue 8/11

6:10 pm-11:50 pm

1 stop8h 40m

Seattle/Tacoma Intl

Sat 8/22

5:05 am-3:59 pm

1 stop7h 54m

$418

BuffaloSeattle

BUF - SEA

BUFSEA

Buffalo

Tue 8/11

6:10 pm-11:50 pm

1 stop8h 40m

Seattle/Tacoma Intl

Sat 8/22

5:05 am-3:59 pm

1 stop7h 54m

$420

BuffaloSeattle

BUF - SEA

BUFSEA

Buffalo

Sat 6/6

6:25 pm-12:35 am

1 stop9h 10m

Seattle/Tacoma Intl

Tue 6/9

7:30 pm-8:00 am

2 stops9h 30m

$421

BuffaloSeattle

BUF - SEA

BUFSEA

Buffalo

Tue 8/18

12:16 pm-8:23 pm

1 stop11h 07m

Seattle/Tacoma Intl

Thu 8/27

7:16 am-6:55 pm

1 stop8h 39m

$425

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 $335. 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 $374.

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 $458 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 $314 on momondo.

How have Buffalo to Seattle flight prices changed over time?

As of May 2026, prices for Buffalo to Seattle flights are approximately 92% 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

6h 51m

Direct flights

None
The fastest flight from Buffalo to Seattle takes 6h 51m
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 6h 51m.

  • 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
7.1
2,977 reviews
Search JetBlue flights
FrontierPriceFrom $150Free CancellationRating
5.6
2,957 reviews
Search Frontier flights
DeltaPriceFrom $238Free CancellationRating
7.9
8,455 reviews
Search Delta flights
United AirlinesPriceFrom $268Free CancellationRating
7.4
9,694 reviews
Search United Airlines flights
American AirlinesPriceFrom $324Free CancellationRating
7.1
11,667 reviews
Search American Airlines flights
SouthwestPriceFrom $335Free CancellationRating
8.0
4,306 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
Redmond
Kent
Tukwila
Puyallup
Marysville
Lakewood
Cle Elum
Federal Way
Centralia
Fife
Westport
Shoreline
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.

An easier way to manage your Seattle trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Mon 6/8
Mon 6/15
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States