Cheap Flights From Buffalo Niagara Intl. (BUF) To Seattle - Tacoma Intl. (SEA)

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Cheapest Flights from Buffalo (BUF) to Seattle (SEA)

The cheapest flights to Seattle - Tacoma Intl. found within the past 7 days were CA $447 round trip and CA $200 one way. Prices and availability subject to change. Additional terms may apply.

Fri, Aug. 22 - Wed, Aug. 27
BUF
Buffalo
SEA
Seattle
CA $447 Roundtrip, found 6 days ago
CA $447
Roundtrip
found 6 days ago
Select Delta flight, departing Fri, Aug. 22 from Buffalo to Seattle, returning Wed, Aug. 27, priced at CA $447 found 6 days ago
Fri, Sep. 5 - Mon, Sep. 8
BUF
Buffalo
SEA
Seattle
CA $455 Roundtrip, found 6 days ago
CA $455
Roundtrip
found 6 days ago
Select JetBlue Airways flight, departing Fri, Sep. 5 from Buffalo to Seattle, returning Mon, Sep. 8, priced at CA $455 found 6 days ago
Fri, Aug. 22 - Wed, Aug. 27
BUF
Buffalo
SEA
Seattle
CA $499 Roundtrip, found 6 days ago
CA $499
Roundtrip
found 6 days ago
Select American Airlines flight, departing Fri, Aug. 22 from Buffalo to Seattle, returning Wed, Aug. 27, priced at CA $499 found 6 days ago
Mon, Oct. 20 - Thu, Oct. 23
BUF
Buffalo
SEA
Seattle
CA $507 Roundtrip, found 22 hours ago
CA $507
Roundtrip
found 22 hours ago
Select JetBlue Airways flight, departing Mon, Oct. 20 from Buffalo to Seattle, returning Thu, Oct. 23, priced at CA $507 found 22 hours ago
Fri, Aug. 22 - Wed, Aug. 27
BUF
Buffalo
SEA
Seattle
CA $527 Roundtrip, found 6 days ago
CA $527
Roundtrip
found 6 days ago
Select American Airlines flight, departing Fri, Aug. 22 from Buffalo to Seattle, returning Wed, Aug. 27, priced at CA $527 found 6 days ago
Fri, Aug. 22 - Wed, Aug. 27
BUF
Buffalo
SEA
Seattle
CA $534 Roundtrip, found 6 days ago
CA $534
Roundtrip
found 6 days ago
Select American Airlines flight, departing Fri, Aug. 22 from Buffalo to Seattle, returning Wed, Aug. 27, priced at CA $534 found 6 days ago
Thu, Sep. 11 - Fri, Sep. 19
BUF
Buffalo
SEA
Seattle
CA $540 Roundtrip, found 3 days ago
CA $540
Roundtrip
found 3 days ago
Select JetBlue Airways flight, departing Thu, Sep. 11 from Buffalo to Seattle, returning Fri, Sep. 19, priced at CA $540 found 3 days ago
Sat, Sep. 6 - Sat, Sep. 13
BUF
Buffalo
SEA
Seattle
CA $551 Roundtrip, found 1 day ago
CA $551
Roundtrip
found 1 day ago
Select JetBlue Airways flight, departing Sat, Sep. 6 from Buffalo to Seattle, returning Sat, Sep. 13, priced at CA $551 found 1 day ago
Fri, Aug. 22 - Wed, Aug. 27
BUF
Buffalo
SEA
Seattle
CA $555 Roundtrip, found 6 days ago
CA $555
Roundtrip
found 6 days ago
Select American Airlines flight, departing Fri, Aug. 22 from Buffalo to Seattle, returning Wed, Aug. 27, priced at CA $555 found 6 days ago
Thu, Aug. 28 - Sat, Sep. 6
BUF
Buffalo
SEA
Seattle
CA $574 Roundtrip, found 1 day ago
CA $574
Roundtrip
found 1 day ago
Select American Airlines flight, departing Thu, Aug. 28 from Buffalo to Seattle, returning Sat, Sep. 6, priced at CA $574 found 1 day ago

Frequently asked questions

Are there direct flights from BUF to SEA?
Unfortunately, there are no direct flights from Buffalo Niagara Intl. Airport (BUF) to Seattle - Tacoma Intl. Airport (SEA). But we can point you to airlines which offer flights with only one stopover. Check out American Airlines, Delta and United Airlines.
What airlines fly from Buffalo Niagara Intl. Airport (BUF) to Sea-Tac Airport?
At the moment, no airline offers direct flights to Sea-Tac Airport from Buffalo Niagara Intl. Airport (BUF). Touching down there will involve one stopover at least. Book your airfare in advance to pick up the best connections and price.
What is the best day to buy a plane ticket?
Airfares offered on Friday tend to be the cheapest, according to flight demand on Travelocity.ca in 2021. Purchasing your airfares on a Thursday or Saturday can also provide better value, however our advice if you're looking to save money is to avoid booking on a Wednesday or Sunday. Our data shows that those two days have the highest ticket values on average, so keep this in mind if you're browsing flight deals.
What are the cheapest days to fly?
Frequent travellers may already know this, but earlier in the week is often the cheapest time to fly. Flights departing on a Monday are the cheapest of the week. Since flights towards the middle of the week tend to be more popular, this causes the prices to rise. This is why, on average, airfares booked on Travelocity.ca in 2021 were most expensive for Wednesday departures.
How far in advance can you book a flight?
Here's the deal: It is typically possible to start comparing international airfares on Travelocity.ca up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 2-4 weeks prior to their travel dates.*According to flight demand on Travelocity.ca from January to December 2021. Savings are subject to change and may vary depending on selections made.
*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.