$180+ Cheap flights from Buffalo to Seattle (BUF - SEA)
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 5/5. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — SEA
Feb 19 — Feb 261
1 adult, Economy
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1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Buffalo to Seattle
Cheapest flights from Buffalo to SeattleExplore 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 January 20, 2026.
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 January 20, 2026.
This JetBlue deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2012:25 pm
BUF
- SEA
1 stop11h 28m
JetBlue
Thu 5/2811:30 am
SEA
- BUF
1 stop8h 27m
JetBlue
Deal found 1/20![JetBlue logo]()
$332
This JetBlue deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/1312:25 pm
BUF
- SEA
1 stop11h 28m
JetBlue
Sun 5/1711:59 pm
SEA
- BUF
1 stop8h 30m
JetBlue
Deal found 1/20![JetBlue logo]()
$335
This Expedia deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2712:25 pm
BUF
- SEA
1 stop11h 28m
JetBlue
Thu 6/411:59 pm
SEA
- BUF
1 stop8h 30m
JetBlue
Deal found 1/19![JetBlue logo]()
$337
This Delta deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/67:41 pm
BUF
- SEA
1 stop29h 41m
Delta
Tue 3/1010:58 pm
SEA
- BUF
1 stop17h 18m
Delta
Deal found 1/20![Delta logo]()
$343
This Sun Country Air deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/311:29 am
BUF
- SEA
1 stop14h 17m
Sun Country Air
Thu 7/911:59 pm
SEA
- BUF
1 stop7h 32m
Sun Country Air
Deal found 1/19![Sun Country Air logo]()
$350
This American Airlines deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/176:01 pm
BUF
- SEA
1 stop8h 03m
American Airlines
Tue 2/2412:27 pm
SEA
- BUF
1 stop8h 11m
American Airlines
Deal found 1/20![American Airlines logo]()
$359
This Sun Country Air deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/2811:41 am
BUF
- SEA
1 stop14h 05m
Sun Country Air
Thu 7/911:59 pm
SEA
- BUF
1 stop7h 32m
Sun Country Air
Deal found 1/19![Sun Country Air logo]()
$360
This United Airlines deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/181:52 pm
BUF
- SEA
1 stop8h 11m
United Airlines
Wed 2/258:17 am
SEA
- BUF
1 stop7h 49m
United Airlines
Deal found 1/19![United Airlines logo]()
$367
This Sun Country Air deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/311:29 am
BUF
- SEA
1 stop14h 17m
Sun Country Air
Sun 7/511:59 pm
SEA
- BUF
1 stop7h 57m
Sun Country Air
Deal found 1/19![Sun Country Air logo]()
$370
This Southwest deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/1812:20 pm
BUF
- SEA
2 stops13h 10m
Southwest
Wed 2/258:45 am
SEA
- BUF
1 stop10h 15m
Southwest
Deal found 1/19![Southwest logo]()
$372
This American Airlines deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/186:01 pm
BUF
- SEA
1 stop8h 03m
American Airlines
Mon 2/2310:57 pm
SEA
- BUF
1 stop9h 01m
American Airlines
Deal found 1/19![American Airlines logo]()
$376
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 January 20, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | Expedia 3 stars |
Round-trip from | $332 (JetBlue) |
One-way from | $180 |
Popular in | November |
Cheapest in | October |
Average price | $506 |
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 2,558,603 searches. Data last updated January 20, 2026.
Use the filters below to find and compare flights from Buffalo to Seattle that are best for you.
Fly from
Buffalo
Fly to
Seattle
Route
Depart
Return
Price
BuffaloSeattle
BUF - SEA
BUFSEA
Buffalo
Wed 5/20
12:25 pm-8:53 pm
1 stop11h 28m
Seattle/Tacoma Intl
Thu 5/28
11:30 am-10:57 pm
1 stop8h 27m
$332
BuffaloSeattle
BUF - SEA
BUFSEA
Buffalo
Sat 5/16
12:25 pm-8:53 pm
1 stop11h 28m
Seattle/Tacoma Intl
Tue 5/26
11:59 pm-11:29 am
1 stop8h 30m
$335
BuffaloSeattle
BUF - SEA
BUFSEA
Buffalo
Wed 5/13
12:25 pm-8:53 pm
1 stop11h 28m
Seattle/Tacoma Intl
Sun 5/17
11:59 pm-11:29 am
1 stop8h 30m
$335
BuffaloSeattle
BUF - SEA
BUFSEA
Buffalo
Fri 7/3
11:29 am-10:46 pm
1 stop14h 17m
Seattle/Tacoma Intl
Thu 7/9
11:59 pm-10:31 am
1 stop7h 32m
$350
BuffaloSeattle
BUF - SEA
BUFSEA
Buffalo
Wed 2/18
12:20 pm-10:30 pm
2 stops13h 10m
Seattle/Tacoma Intl
Wed 2/25
6:45 am-4:15 pm
1 stop6h 30m
$372
BuffaloSeattle
BUF - SEA
BUFSEA
Buffalo
Thu 7/2
11:17 am-10:46 pm
1 stop14h 29m
Seattle/Tacoma Intl
Sat 7/4
11:59 pm-10:41 am
1 stop7h 42m
$380
BuffaloSeattle
BUF - SEA
BUFSEA
Buffalo
Mon 6/29
11:47 am-10:46 pm
1 stop13h 59m
Seattle/Tacoma Intl
Sat 7/4
11:59 pm-10:41 am
1 stop7h 42m
$380
BuffaloSeattle
BUF - SEA
BUFSEA
Buffalo
Thu 2/12
3:39 pm-10:22 pm
1 stop9h 43m
Seattle/Tacoma Intl
Tue 2/17
9:55 pm-7:00 pm
1 stop18h 05m
$391
BuffaloSeattle
BUF - SEA
BUFSEA
Buffalo
Thu 2/12
3:39 pm-10:22 pm
1 stop9h 43m
Seattle/Tacoma Intl
Wed 2/18
9:55 pm-12:14 am
1 stop23h 19m
$391
BuffaloSeattle
BUF - SEA
BUFSEA
Buffalo
Wed 4/22
5:55 pm-10:37 pm
1 stop7h 42m
Seattle/Tacoma Intl
Sun 4/26
11:59 pm-10:12 am
1 stop7h 13m
$398
Showing 1-10 of 21 results
Compare providers for flights from Buffalo to Seattle
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Buffalo to Seattle in January.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*2 stars |
- Most accurate provider: When it comes to deals on Buffalo-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Buffalo-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Buffalo-Seattle flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Buffalo-Seattle flights, Cheapflights users trust Expedia the most. Expedia has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Buffalo-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
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?
Use this chart to determine the optimal time to book a round-trip flight from Buffalo to Seattle. Price data was last updated on January 16, 2026.
The best time to book flights from Buffalo to Seattle is 48 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
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 $155). Flying from Buffalo to Seattle in December is currently the most expensive (average of $326). 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.
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 January 20, 2026.
Peruse reviews from past customers who have flown with Southwest, Delta, and United Airlines from Buffalo to Seattle to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.0
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Crew
8.6
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Food
7.0
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Crew
8.6
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Food
7.0
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Crew
8.6
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Food
7.0
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Crew
8.6
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Food
7.0
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Crew
8.6
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Food
7.0
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Crew
8.6
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
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.
Traveling to a place near Seattle?
Book flights to Seattle if you plan to visit one of these locationsTacoma
SeaTac
Lakewood
Ocean Shores
Olympia
Lynnwood
Lacey
Edmonds
Renton
Puyallup
Kirkland
Kent
Tukwila
Fife
Aberdeen
Shoreline
Marysville
Centralia
Federal Way
Chehalis
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.
Top 6 airlines flying from Buffalo to Seattle
Discover the top 6 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 2,558,603 searches. Data last updated January 20, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$145 | Average$273 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$150 | Average$277 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$173 | Average$474 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$324 | Average$456 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$326 | Average$477 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$335 | Average$446 | FlexibilityNo cancel fee | On-time63% |