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Cheap flights from Buffalo to Seattle from C$ 194

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 30/9. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — SEA
20 Jul — 27 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Buffalo to Seattle

Enter your travel dates to find the best prices.

Cheapest flights from Buffalo to Seattle
Explore the most affordable flight options available from Buffalo to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 20 June 2026.

Sat 12/92:30 p.m.
BUF
-
SEA
1 stop11h 08m
JetBlue
Sat 3/109:40 p.m.
SEA
-
BUF
1 stop7h 44m
JetBlue
Deal found 18/6C$ 393
Tue 15/92:30 p.m.
BUF
-
SEA
1 stop11h 08m
JetBlue
Wed 30/99:40 p.m.
SEA
-
BUF
1 stop7h 44m
JetBlue
Deal found 18/6C$ 396
Sat 12/92:30 p.m.
BUF
-
SEA
1 stop11h 08m
JetBlue
Wed 30/911:55 p.m.
SEA
-
BUF
1 stop10h 34m
JetBlue
Deal found 18/6C$ 399
Tue 22/912:10 p.m.
BUF
-
SEA
1 stop11h 32m
JetBlue
Sat 26/99:40 p.m.
SEA
-
BUF
1 stop7h 44m
JetBlue
Deal found 16/6C$ 400
Mon 14/912:10 p.m.
BUF
-
SEA
1 stop11h 32m
JetBlue
Wed 30/99:40 p.m.
SEA
-
BUF
1 stop7h 44m
JetBlue
Deal found 18/6C$ 429
Fri 11/912:10 p.m.
BUF
-
SEA
1 stop11h 32m
JetBlue
Sat 3/109:40 p.m.
SEA
-
BUF
1 stop7h 44m
JetBlue
Deal found 18/6C$ 430
Sat 12/92:30 p.m.
BUF
-
SEA
1 stop11h 08m
JetBlue
Thu 1/109:40 p.m.
SEA
-
BUF
1 stop7h 44m
JetBlue
Deal found 18/6C$ 436
Sat 5/96:00 a.m.
BUF
-
SEA
1 stop9h 27m
JetBlue
Wed 23/99:40 p.m.
SEA
-
BUF
1 stop7h 44m
JetBlue
Deal found 18/6C$ 437
Sat 5/96:00 a.m.
BUF
-
SEA
1 stop9h 27m
JetBlue
Tue 22/911:55 p.m.
SEA
-
BUF
1 stop8h 19m
JetBlue
Deal found 18/6C$ 444
Fri 25/92:30 p.m.
BUF
-
SEA
1 stop11h 08m
JetBlue
Sat 3/109:40 p.m.
SEA
-
BUF
1 stop7h 44m
JetBlue
Deal found 19/6C$ 457
Fri 11/912:10 p.m.
BUF
-
SEA
1 stop11h 32m
JetBlue
Thu 1/109:40 p.m.
SEA
-
BUF
1 stop7h 44m
JetBlue
Deal found 18/6C$ 473

Find flight deals from Buffalo to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Buffalo (BUF) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 20 June 2026.

Round-trip from

C$ 393

One-way from

C$ 194

Popular in

April

Cheapest in

September

Average price

C$ 801
JetBlue
  • JetBlue
  • 12/9-3/10
  • 2 total stops
  • 18h 52m total
  • Buffalo to Seattle
Search Deals
JetBlue
  • JetBlue
  • 30/9
  • 1 total stop
  • 11h 32m total
  • Buffalo to Seattle
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (C$ 38 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 22 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights 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, Cheapflights users made 629,999 searches. Data last updated 20 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

Tue 15/9

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

1 stop11h 08m

Seattle/Tacoma Intl

Tue 29/9

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

1 stop7h 44m

C$ 393

BuffaloSeattle

BUF - SEA

BUFSEA

Buffalo

Fri 11/9

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

1 stop11h 32m

Seattle/Tacoma Intl

Fri 2/10

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

1 stop7h 44m

C$ 473

BuffaloSeattle

BUF - SEA

BUFSEA

Buffalo

Fri 11/9

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

1 stop11h 32m

Seattle/Tacoma Intl

Mon 28/9

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

1 stop7h 44m

C$ 473

BuffaloSeattle

BUF - SEA

BUFSEA

Buffalo

Sun 13/9

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$ 538
Quickest round-trip

BuffaloSeattle

BUF - SEA

BUFSEA

Buffalo

Tue 1/9

3:54 p.m.-10:05 p.m.

1 stop9h 11m

Seattle/Tacoma Intl

Sun 20/9

6:00 a.m.-3:13 p.m.

1 stop6h 13m

C$ 597

BuffaloSeattle

BUF - SEA

BUFSEA

Buffalo

Sun 23/8

4:30 p.m.-9:45 p.m.

1 stop8h 15m

Seattle/Tacoma Intl

Mon 31/8

11:05 p.m.-12:30 p.m.

2 stops10h 25m

C$ 630

BuffaloSeattle

BUF - SEA

BUFSEA

Buffalo

Sun 30/8

12:20 p.m.-6:40 p.m.

2 stops9h 20m

Seattle/Tacoma Intl

Mon 7/9

11:05 p.m.-12:30 p.m.

2 stops10h 25m

C$ 637

BuffaloSeattle

BUF - SEA

BUFSEA

Buffalo

Sat 25/7

4:50 p.m.-12:15 a.m.

1 stop10h 25m

Seattle/Tacoma Intl

Thu 6/8

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

1 stop9h 40m

C$ 662

BuffaloSeattle

BUF - SEA

BUFSEA

Buffalo

Sun 23/8

4:30 p.m.-9:45 p.m.

1 stop8h 15m

Seattle/Tacoma Intl

Mon 7/9

11:05 p.m.-11:20 a.m.

1 stop9h 15m

C$ 662

BuffaloSeattle

BUF - SEA

BUFSEA

Buffalo

Sun 6/9

11:05 a.m.-5:45 p.m.

2 stops9h 40m

Seattle/Tacoma Intl

Mon 14/9

11:05 p.m.-12:30 p.m.

2 stops10h 25m

C$ 676

Flights are sorted by cheapest round-trip flights first.

Deals found on 19/6

Showing 1-10 of 18 resultsSorted by cheapest first
1
2

Best time to book a flight from Buffalo to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Buffalo with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Buffalo to Seattle

How far ahead should I book a flight from Buffalo to Seattle?

To ensure you get the cheapest price possible for a flight from Buffalo to Seattle, you should look to book at least 15 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Buffalo to Seattle?

Currently, September is the cheapest month in which you can book a flight from Buffalo to Seattle (average of C$ 532). Flying from Buffalo to Seattle in April is currently the most expensive (average of C$ 831). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost to fly round-trip from Buffalo to Seattle?

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated 20 June 2026.
Get a feel of what it's like to fly with Southwest and Delta from Buffalo to Seattle by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
7.9
Good
4,243 reviews
Check prices

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Overall

7.9

Food

7.0

Crew

8.6

Reviews

1 / 20
6.0
Good

Reza,Jun 2026

TPA - MDW

The seats were super cramped and couldn’t move without hitting other passengers
Southwest
7.9
Good
4,243 reviews
Southwest
7.9
Good
4,243 reviews
Check prices

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Overall

7.9

Food

7.0

Crew

8.6

Reviews

1 / 20
6.0
Good

Reza,Jun 2026

TPA - MDW

The seats were super cramped and couldn’t move without hitting other passengers
Delta
7.8
Good
8,423 reviews
Southwest
7.9
Good
4,243 reviews
Check prices

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Overall

7.9

Food

7.0

Crew

8.6

Reviews

1 / 20
6.0
Good

Reza,Jun 2026

TPA - MDW

The seats were super cramped and couldn’t move without hitting other passengers

Related info for your journey

Find useful and relevant information for your journey from Buffalo to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Buffalo to Seattle?

    There are many flights that can get you from Buffalo to Seattle in 9h 11m. Fly via JetBlue or Delta to get the fastest option. Buffalo and Seattle are separated by a distance of 3404 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the cheapest airlines flying from Buffalo to Seattle round-trip?

    According to our current data, Delta (C$ 236), and Southwest (C$ 424) offers the cheapest pricing from Buffalo to Seattle. Delta is priced at 65% lower than the current average price of a flight leaving 3 months from now.

  • Can I find deals for flights from Buffalo to Seattle that include hotel bookings?

    Yes. In addition to deals on Buffalo to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Buffalo to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Buffalo to Seattle.

  • Can I find deals for business class flights from Buffalo to Seattle?

    Yes. Cheapflights offers flight deals from Buffalo to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Buffalo to Seattle?

    Currently, September is the cheapest month in which you can book a flight from Buffalo to Seattle (average of C$ 532). Flying from Buffalo to Seattle in April is currently the most expensive (average of C$ 831). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
SeaTac
Kent
Leavenworth
Mukilteo
Tacoma
Renton
Cashmere
Tukwila
Olympia
Marysville
Kirkland

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Buffalo to Seattle

See prices for flight routes from nearby airports that may be better suited for you.
Newark to Seattle flights
John F Kennedy Intl to Seattle flights
Buffalo to Portland flights

Top 2 airlines flying from Buffalo to Seattle

Discover the top 2 airlines that operate flights from Buffalo to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 20 June 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapestC$ 236AverageC$ 544FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
SouthwestCheapestC$ 424AverageC$ 783FlexibilityNo cancel feeOn-time63%
Search Southwest flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Buffalo to Seattle?

Cheapflights makes it easy to find Buffalo to Seattle flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Buffalo to Seattle?

Cheapflights simply makes it quick and affordable to book flights from Buffalo to Seattle by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Buffalo to Seattle with no change fees?

Yes, we can. To see specific flights from Buffalo to Seattle with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Buffalo to Seattle become cheaper?

Not ready to book yet? You can track prices for flights from Buffalo to Seattle on Cheapflights with our Price Alert feature and get notified when better prices are available.

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