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Cheap flights from Buffalo to Seattle from C$ 192

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 23/9. 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 Buffalo to Seattle

Cheap round-trip flights

Enter your travel dates to find the best prices.
JetBlue Logo
12:10 p.m. - 8:42 p.m.
BUF
-
SEA
11h 32m
1 stop
JetBlue Logo
9:40 p.m. - 8:24 a.m.
SEA
-
BUF
7h 44m
1 stop
C$ 382JetBlue
Sat, 26 Sep - Wed, 30 Sep
JetBlue Logo
2:30 p.m. - 10:38 p.m.
BUF
-
SEA
11h 08m
1 stop
JetBlue Logo
9:40 p.m. - 8:24 a.m.
SEA
-
BUF
7h 44m
1 stop
C$ 389JetBlue
Sat, 26 Sep - Wed, 30 Sep
Delta Logo
1:15 p.m. - 10:12 p.m.
BUF
-
SEA
11h 57m
1 stop
Delta Logo
9:55 p.m. - 10:22 a.m.
SEA
-
BUF
9h 27m
1 stop
C$ 427Delta
Tue, 3 Nov - Tue, 10 Nov
JetBlue Logo
6:00 a.m. - 12:27 p.m.
BUF
-
SEA
9h 27m
1 stop
JetBlue Logo
11:44 p.m. - 12:36 p.m.
SEA
-
BUF
9h 52m
1 stop
C$ 435JetBlue
Sat, 4 Jul - Sat, 4 Jul
JetBlue Logo
2:30 p.m. - 10:38 p.m.
BUF
-
SEA
11h 08m
1 stop
JetBlue Logo
9:40 p.m. - 8:24 a.m.
SEA
-
BUF
7h 44m
1 stop
C$ 452JetBlue
Fri, 25 Sep - Sat, 3 Oct
JetBlue Logo
3:10 p.m. - 10:38 p.m.
BUF
-
SEA
10h 28m
1 stop
JetBlue Logo
11:55 p.m. - 11:14 a.m.
SEA
-
BUF
8h 19m
1 stop
C$ 459JetBlue
Fri, 9 Oct - Tue, 20 Oct
JetBlue Logo
12:10 p.m. - 8:42 p.m.
BUF
-
SEA
11h 32m
1 stop
JetBlue Logo
9:40 p.m. - 8:24 a.m.
SEA
-
BUF
7h 44m
1 stop
C$ 469JetBlue
Fri, 2 Oct - Mon, 5 Oct
Delta Logo
1:15 p.m. - 10:12 p.m.
BUF
-
SEA
11h 57m
1 stop
Delta Logo
6:00 a.m. - 3:11 p.m.
SEA
-
BUF
6h 11m
1 stop
C$ 471Delta
Sat, 31 Oct - Wed, 11 Nov
JetBlue Logo
6:00 a.m. - 12:27 p.m.
BUF
-
SEA
9h 27m
1 stop
JetBlue Logo
11:45 a.m. - 11:43 p.m.
SEA
-
BUF
8h 58m
1 stop
C$ 485JetBlue
Sat, 4 Jul - Fri, 10 Jul
JetBlue Logo
12:10 p.m. - 8:42 p.m.
BUF
-
SEA
11h 32m
1 stop
JetBlue Logo
11:55 p.m. - 11:14 a.m.
SEA
-
BUF
8h 19m
1 stop
C$ 490JetBlue
Wed, 9 Sep - Sun, 20 Sep

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United Airlines flights from Buffalo to Seattle

Our best United Airlines deals on Buffalo to Seattle flight tickets
United Airlines
11 Nov
BUF5:50 p.m.Buffalo
7h 39m
1 stop
SEA10:29 p.m.Seattle/Tacoma Intl
15 Nov
SEA12:46 p.m.Seattle/Tacoma Intl
6h 59m
1 stop
BUF10:45 p.m.Buffalo
C$ 540
United Airlines
10 Nov
BUF10:50 a.m.Buffalo
12h 20m
2 stops
SEA8:10 p.m.Seattle/Tacoma Intl
17 Nov
SEA10:40 p.m.Seattle/Tacoma Intl
8h 09m
1 stop
BUF9:49 a.m.Buffalo
C$ 587
United Airlines
10 Nov
BUF10:50 a.m.Buffalo
12h 20m
2 stops
SEA8:10 p.m.Seattle/Tacoma Intl
17 Nov
SEA8:30 a.m.Seattle/Tacoma Intl
9h 01m
2 stops
BUF8:31 p.m.Buffalo
C$ 594

American Airlines flights from Buffalo to Seattle

Our best American Airlines deals on Buffalo to Seattle flight tickets
American Airlines
8 Dec
BUF7:27 a.m.Buffalo
9h 28m
1 stop
SEA1:55 p.m.Seattle/Tacoma Intl
8 Dec
SEA10:58 p.m.Seattle/Tacoma Intl
9h 16m
1 stop
BUF11:14 a.m.Buffalo
C$ 515
American Airlines
6 Aug
BUF6:09 p.m.Buffalo
8h 26m
1 stop
SEA11:35 p.m.Seattle/Tacoma Intl
17 Aug
SEA5:10 a.m.Seattle/Tacoma Intl
9h 52m
1 stop
BUF6:02 p.m.Buffalo
C$ 562
American Airlines
29 Aug
BUF5:19 p.m.Buffalo
8h 37m
1 stop
SEA10:56 p.m.Seattle/Tacoma Intl
7 Sep
SEA11:56 p.m.Seattle/Tacoma Intl
6h 43m
1 stop
BUF9:39 a.m.Buffalo
C$ 614

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 96,600 searches. Data last updated 14 June 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

Sat 26/9

12:10 p.m.-8:42 p.m.

1 stop11h 32m

Seattle/Tacoma Intl

Wed 30/9

9:40 p.m.-8:24 a.m.

1 stop7h 44m

C$ 382

BuffaloSeattle

BUF - SEA

BUFSEA

Buffalo

Sat 26/9

2:30 p.m.-10:38 p.m.

1 stop11h 08m

Seattle/Tacoma Intl

Wed 30/9

9:40 p.m.-8:24 a.m.

1 stop7h 44m

C$ 389

BuffaloSeattle

BUF - SEA

BUFSEA

Buffalo

Tue 3/11

1:15 p.m.-10:12 p.m.

1 stop11h 57m

Seattle/Tacoma Intl

Tue 10/11

9:55 p.m.-10:22 a.m.

1 stop9h 27m

C$ 427

BuffaloSeattle

BUF - SEA

BUFSEA

Buffalo

Sat 4/7

6:00 a.m.-12:27 p.m.

1 stop9h 27m

Seattle/Tacoma Intl

Sat 4/7

11:44 p.m.-12:36 p.m.

1 stop9h 52m

C$ 435

BuffaloSeattle

BUF - SEA

BUFSEA

Buffalo

Fri 25/9

2:30 p.m.-10:38 p.m.

1 stop11h 08m

Seattle/Tacoma Intl

Sat 3/10

9:40 p.m.-8:24 a.m.

1 stop7h 44m

C$ 452

BuffaloSeattle

BUF - SEA

BUFSEA

Buffalo

Fri 9/10

3:10 p.m.-10:38 p.m.

1 stop10h 28m

Seattle/Tacoma Intl

Tue 20/10

11:55 p.m.-11:14 a.m.

1 stop8h 19m

C$ 459

BuffaloSeattle

BUF - SEA

BUFSEA

Buffalo

Fri 2/10

12:10 p.m.-8:42 p.m.

1 stop11h 32m

Seattle/Tacoma Intl

Mon 5/10

9:40 p.m.-8:24 a.m.

1 stop7h 44m

C$ 469
Quickest round-trip

BuffaloSeattle

BUF - SEA

BUFSEA

Buffalo

Sat 31/10

1:15 p.m.-10:12 p.m.

1 stop11h 57m

Seattle/Tacoma Intl

Wed 11/11

6:00 a.m.-3:11 p.m.

1 stop6h 11m

C$ 471

BuffaloSeattle

BUF - SEA

BUFSEA

Buffalo

Sat 4/7

6:00 a.m.-12:27 p.m.

1 stop9h 27m

Seattle/Tacoma Intl

Fri 10/7

11:45 a.m.-11:43 p.m.

1 stop8h 58m

C$ 485

BuffaloSeattle

BUF - SEA

BUFSEA

Buffalo

Wed 9/9

12:10 p.m.-8:42 p.m.

1 stop11h 32m

Seattle/Tacoma Intl

Sun 20/9

11:55 p.m.-11:14 a.m.

1 stop8h 19m

C$ 490

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?

If you aren’t able to travel to Seattle during the month of September, then flying in February is also cheap. Prices for this month can be found on momondo for an average of C$ 537.

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 C$ 660 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 C$ 474 on momondo.

How have Buffalo to Seattle flight prices changed over time?

As of June 2026, prices for Buffalo to Seattle flights are approximately 60% 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 29m

Direct flights

None
The fastest flight from Buffalo to Seattle takes 7h 29m
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?

    Seattle/Tacoma Intl is 3394.7 km away from Buffalo. Flights usually cover this in 7h 29m, depending on flying conditions and air traffic around both airports.

  • 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 were last updated today.

  • 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?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, 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 travel and health documents you'll need for your trip to Seattle/Tacoma Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. It is always advisable to seek advice from your airline or a trusted 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
DeltaPriceFrom C$ 234Free CancellationRating
7.9
8,403 reviews
Search Delta flights
SouthwestPriceFrom C$ 420Free CancellationRating
7.9
4,236 reviews
Search Southwest flights

Travelling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Lynnwood
Leavenworth
Redmond
Kirkland
SeaTac
Marysville
Woodinville
Tacoma
Puyallup
Tukwila
Olympia
Ocean Shores
Ellensburg
Federal Way
Bainbridge Island
Gig Harbor
Renton
Kent
Edmonds
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?

Yes. momondo allows you to filter the results for Buffalo to Seattle flights to just show those with flexible booking policies.

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

Once all potential Buffalo to Seattle flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

If you are simply researching potential flights to Seattle, momondo offers a useful price alert feature which will track prices for flights to Seattle from Buffalo and alert you when they change.

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