Cheap Flights From Bellingham Intl. (BLI) To Seattle - Tacoma Intl. (SEA)

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Cheapest Flights from Bellingham (BLI) to Seattle (SEA)

The cheapest flights to Seattle - Tacoma Intl. found within the past 7 days were CA $229 round trip and CA $141 one way. Prices and availability subject to change. Additional terms may apply.

Thu, Feb 19 - Sun, Feb 22
BLI
Bellingham
SEA
Seattle
CA $229 Roundtrip, found 1 day ago
CA $229
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Thu, Feb 19 from Bellingham to Seattle, returning Sun, Feb 22, priced at CA $229 found 1 day ago
Thu, Jul 16 - Sun, Jul 19
BLI
Bellingham
SEA
Seattle
CA $232 Roundtrip, found 5 days ago
CA $232
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Thu, Jul 16 from Bellingham to Seattle, returning Sun, Jul 19, priced at CA $232 found 5 days ago
Fri, Mar 13 - Tue, Mar 17
BLI
Bellingham
SEA
Seattle
CA $234 Roundtrip, found 5 days ago
CA $234
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Fri, Mar 13 from Bellingham to Seattle, returning Tue, Mar 17, priced at CA $234 found 5 days ago
Fri, Feb 20 - Sun, Feb 22
BLI
Bellingham
SEA
Seattle
CA $234 Roundtrip, found 1 day ago
CA $234
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Fri, Feb 20 from Bellingham to Seattle, returning Sun, Feb 22, priced at CA $234 found 1 day ago
Fri, Mar 13 - Tue, Mar 17
BLI
Bellingham
SEA
Seattle
CA $248 Roundtrip, found 5 days ago
CA $248
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Fri, Mar 13 from Bellingham to Seattle, returning Tue, Mar 17, priced at CA $248 found 5 days ago
Thu, Feb 19 - Sun, Feb 22
BLI
Bellingham
SEA
Seattle
CA $249 Roundtrip, found 2 days ago
CA $249
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Thu, Feb 19 from Bellingham to Seattle, returning Sun, Feb 22, priced at CA $249 found 2 days ago
Fri, Mar 13 - Tue, Mar 17
BLI
Bellingham
SEA
Seattle
CA $275 Roundtrip, found 5 days ago
CA $275
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Fri, Mar 13 from Bellingham to Seattle, returning Tue, Mar 17, priced at CA $275 found 5 days ago
Fri, Mar 20 - Mon, Mar 23
BLI
Bellingham
SEA
Seattle
CA $279 Roundtrip, found 18 hours ago
CA $279
Roundtrip
found 18 hours ago
Select Alaska Airlines flight, departing Fri, Mar 20 from Bellingham to Seattle, returning Mon, Mar 23, priced at CA $279 found 18 hours ago
Fri, Mar 13 - Tue, Mar 17
BLI
Bellingham
SEA
Seattle
CA $289 Roundtrip, found 5 days ago
CA $289
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Fri, Mar 13 from Bellingham to Seattle, returning Tue, Mar 17, priced at CA $289 found 5 days ago
Fri, Mar 20 - Mon, Mar 23
BLI
Bellingham
SEA
Seattle
CA $291 Roundtrip, found 18 hours ago
CA $291
Roundtrip
found 18 hours ago
Select Alaska Airlines flight, departing Fri, Mar 20 from Bellingham to Seattle, returning Mon, Mar 23, priced at CA $291 found 18 hours ago

Frequently asked questions

Are there direct flights from Bellingham Intl. Airport (BLI) to SEA?
For a speedy trip between Bellingham and Seattle, try Alaska Airlines. This airline operates direct flights from Bellingham Intl. Airport (BLI) to Seattle - Tacoma Intl. Airport (SEA).
What airlines fly from Bellingham Intl. Airport (BLI) to SEA?
With Alaska Airlines, you won't have to stress about extended layovers or standing around waiting for your next flight. This popular airline company will take you nonstop from Bellingham to Seattle on one of the 139 flights offered on this route each month.
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.