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Cheap flights from Buffalo to Seattle from C$ 254

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 16/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

Enter your travel dates to find the best prices.
JetBlue Logo
12:25 p.m. - 8:53 p.m.BUF-SEA
11h 28m1 stop
JetBlue Logo
11:30 a.m. - 10:57 p.m.SEA-BUF
8h 27m1 stop
C$ 423JetBlue
Find Deal
sáb, 16 mai - ter, 26 mai
Delta Logo
6:03 a.m. - 10:42 a.m.BUF-SEA
7h 39m1 stop
Delta Logo
6:05 a.m. - 4:59 p.m.SEA-BUF
7h 54m1 stop
C$ 461Delta
Find Deal
qui, 29 jan - seg, 2 fev
JetBlue Logo
12:25 p.m. - 8:53 p.m.BUF-SEA
11h 28m1 stop
JetBlue Logo
11:30 a.m. - 10:57 p.m.SEA-BUF
8h 27m1 stop
C$ 468JetBlue
Find Deal
sáb, 2 mai - dom, 10 mai
Delta Logo
3:43 p.m. - 10:25 p.m.BUF-SEA
9h 42m1 stop
Delta Logo
11:10 p.m. - 11:22 a.m.SEA-BUF
9h 12m1 stop
C$ 507Delta
Find Deal
sáb, 10 jan - sáb, 17 jan
Southwest Logo
12:20 p.m. - 10:30 p.m.BUF-SEA
13h 10m2 stops
Southwest Logo
5:15 a.m. - 9:15 p.m.SEA-BUF
13h 00m2 stops
C$ 516Southwest
Find Deal
ter, 13 jan - qui, 15 jan
Delta Logo
3:55 p.m. - 10:23 p.m.BUF-SEA
9h 28m1 stop
Delta Logo
11:50 a.m. - 10:58 p.m.SEA-BUF
8h 08m1 stop
C$ 518Delta
Find Deal
ter, 9 dez - sáb, 13 dez
Delta Logo
5:44 p.m. - 9:49 p.m.BUF-SEA
7h 05m1 stop
Delta Logo
11:10 p.m. - 5:04 p.m.SEA-BUF
14h 54m2 stops
C$ 522Delta
Find Deal
qui, 29 jan - seg, 2 fev
JetBlue Logo
12:25 p.m. - 8:53 p.m.BUF-SEA
11h 28m1 stop
JetBlue Logo
11:30 a.m. - 10:57 p.m.SEA-BUF
8h 27m1 stop
C$ 523JetBlue
Find Deal
dom, 3 mai - sáb, 16 mai
Delta Logo
6:00 a.m. - 7:43 p.m.BUF-SEA
16h 43m2 stops
Delta Logo
1:30 p.m. - 10:57 p.m.SEA-BUF
6h 27m1 stop
C$ 525Delta
Find Deal
qui, 29 jan - seg, 2 fev
Delta Logo
3:38 p.m. - 10:25 p.m.BUF-SEA
9h 47m1 stop
Delta Logo
1:30 p.m. - 10:57 p.m.SEA-BUF
6h 27m1 stop
C$ 543Delta
Find Deal
qui, 29 jan - seg, 2 fev

JetBlue flights from Buffalo to Seattle

Our best JetBlue deals on Buffalo to Seattle flight tickets
JetBlue
16 May
BUF12:25 p.m.Buffalo
11h 28m
1 stop
SEA8:53 p.m.Seattle/Tacoma Intl
26 May
SEA11:30 a.m.Seattle/Tacoma Intl
8h 27m
1 stop
BUF10:57 p.m.Buffalo
C$ 423
Find similar
JetBlue
2 May
BUF12:25 p.m.Buffalo
11h 28m
1 stop
SEA8:53 p.m.Seattle/Tacoma Intl
10 May
SEA11:30 a.m.Seattle/Tacoma Intl
8h 27m
1 stop
BUF10:57 p.m.Buffalo
C$ 468
Find similar
JetBlue
3 May
BUF12:25 p.m.Buffalo
11h 28m
1 stop
SEA8:53 p.m.Seattle/Tacoma Intl
16 May
SEA11:30 a.m.Seattle/Tacoma Intl
8h 27m
1 stop
BUF10:57 p.m.Buffalo
C$ 523
Find similar

Delta flights from Buffalo to Seattle

Our best Delta deals on Buffalo to Seattle flight tickets
Delta
29 Jan
BUF6:03 a.m.Buffalo
7h 39m
1 stop
SEA10:42 a.m.Seattle/Tacoma Intl
2 Feb
SEA6:05 a.m.Seattle/Tacoma Intl
7h 54m
1 stop
BUF4:59 p.m.Buffalo
C$ 461
Find similar
Delta
10 Jan
BUF3:43 p.m.Buffalo
9h 42m
1 stop
SEA10:25 p.m.Seattle/Tacoma Intl
17 Jan
SEA11:10 p.m.Seattle/Tacoma Intl
9h 12m
1 stop
BUF11:22 a.m.Buffalo
C$ 507
Find similar
Delta
9 Dec
BUF3:55 p.m.Buffalo
9h 28m
1 stop
SEA10:23 p.m.Seattle/Tacoma Intl
13 Dec
SEA11:50 a.m.Seattle/Tacoma Intl
8h 08m
1 stop
BUF10:58 p.m.Buffalo
C$ 518
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 96,600 searches. Data last updated 26 novembro 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

sáb 16/5

12:25 p.m.-8:53 p.m.

1 stop11h 28m

Seattle/Tacoma Intl

ter 26/5

11:30 a.m.-10:57 p.m.

1 stop8h 27m

C$ 423

BuffaloSeattle

BUF - SEA

BUFSEA

Buffalo

qui 29/1

6:03 a.m.-10:42 a.m.

1 stop7h 39m

Seattle/Tacoma Intl

seg 2/2

6:05 a.m.-4:59 p.m.

1 stop7h 54m

C$ 461

BuffaloSeattle

BUF - SEA

BUFSEA

Buffalo

sáb 2/5

12:25 p.m.-8:53 p.m.

1 stop11h 28m

Seattle/Tacoma Intl

dom 10/5

11:30 a.m.-10:57 p.m.

1 stop8h 27m

C$ 468

BuffaloSeattle

BUF - SEA

BUFSEA

Buffalo

sáb 10/1

3:43 p.m.-10:25 p.m.

1 stop9h 42m

Seattle/Tacoma Intl

sáb 17/1

11:10 p.m.-11:22 a.m.

1 stop9h 12m

C$ 507

BuffaloSeattle

BUF - SEA

BUFSEA

Buffalo

ter 13/1

12:20 p.m.-10:30 p.m.

2 stops13h 10m

Seattle/Tacoma Intl

qui 15/1

5:15 a.m.-9:15 p.m.

2 stops13h 00m

C$ 516

BuffaloSeattle

BUF - SEA

BUFSEA

Buffalo

ter 9/12

3:55 p.m.-10:23 p.m.

1 stop9h 28m

Seattle/Tacoma Intl

sáb 13/12

11:50 a.m.-10:58 p.m.

1 stop8h 08m

C$ 518

BuffaloSeattle

BUF - SEA

BUFSEA

Buffalo

qui 29/1

5:44 p.m.-9:49 p.m.

1 stop7h 05m

Seattle/Tacoma Intl

seg 2/2

11:10 p.m.-5:04 p.m.

2 stops14h 54m

C$ 522

BuffaloSeattle

BUF - SEA

BUFSEA

Buffalo

dom 3/5

12:25 p.m.-8:53 p.m.

1 stop11h 28m

Seattle/Tacoma Intl

sáb 16/5

11:30 a.m.-10:57 p.m.

1 stop8h 27m

C$ 523

BuffaloSeattle

BUF - SEA

BUFSEA

Buffalo

qui 29/1

6:00 a.m.-7:43 p.m.

2 stops16h 43m

Seattle/Tacoma Intl

seg 2/2

1:30 p.m.-10:57 p.m.

1 stop6h 27m

C$ 525

BuffaloSeattle

BUF - SEA

BUFSEA

Buffalo

qui 29/1

3:38 p.m.-10:25 p.m.

1 stop9h 47m

Seattle/Tacoma Intl

seg 2/2

1:30 p.m.-10:57 p.m.

1 stop6h 27m

C$ 543

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?

If you aren’t able to travel to Seattle during the month of October, then flying in September is also cheap. Prices for this month can be found on momondo for an average of C$ 530.

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

Our data shows that Friday is the least expensive day to fly to Seattle. Tickets to fly out on this day can be as low as C$ 543. If your travel schedule is flexible, try to avoid departing on a Thursday because tickets tend to average around C$ 826. These prices are subject to change though, so be sure to set up a Price Alert for flights to Seattle.

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

Our most recent data shows that the best time of day to fly to Seattle is in the evening. Flights from Buffalo to Seattle during this time can be as low as C$ 468. Flights in the morning are often more expensive with an average ticket price of C$ 783.

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 C$ 649 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$ 538 on momondo.

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

9h 36m

Direct flights

None
The fastest flight from Buffalo to Seattle takes 9h 36m
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?

    Seattle/Tacoma Intl is 3394.7 km away from Buffalo. Flights usually cover this in 7h 05m, 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 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
SouthwestPriceFrom C$ 432Free CancellationRating
8.0
4,254 reviews
Search Southwest flights

Travelling to a place near Seattle?

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

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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