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

Wander Wisely with exceptional service, 24/7 supportOpens in a new window

Feel at ease with free flight cancellations within 24 hours of booking

Change your flight without a fee on select flights

Find The Best Dates To Fly

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

The cheapest flights to Seattle - Tacoma Intl. found within the past 7 days were CA $164 round trip and CA $111 one way. Prices and availability subject to change. Additional terms may apply.

Tue, Jan 13 - Tue, Jan 27
BLI
Bellingham
SEA
Seattle
CA $164 Roundtrip, found 1 day ago
CA $164
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Tue, Jan 13 from Bellingham to Seattle, returning Tue, Jan 27, priced at CA $164 found 1 day ago
Tue, Jan 13 - Tue, Jan 27
BLI
Bellingham
SEA
Seattle
CA $178 Roundtrip, found 1 day ago
CA $178
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Tue, Jan 13 from Bellingham to Seattle, returning Tue, Jan 27, priced at CA $178 found 1 day ago
Wed, Jan 14 - Tue, Mar 17
BLI
Bellingham
SEA
Seattle
CA $179 Roundtrip, found 7 hours ago
CA $179
Roundtrip
found 7 hours ago
Select Alaska Airlines flight, departing Wed, Jan 14 from Bellingham to Seattle, returning Tue, Mar 17, priced at CA $179 found 7 hours ago
Sat, Nov 22 - Sun, Nov 23
BLI
Bellingham
SEA
Seattle
CA $181 Roundtrip, found 11 hours ago
CA $181
Roundtrip
found 11 hours ago
Select Alaska Airlines flight, departing Sat, Nov 22 from Bellingham to Seattle, returning Sun, Nov 23, priced at CA $181 found 11 hours ago
Wed, Jan 14 - Tue, Mar 17
BLI
Bellingham
SEA
Seattle
CA $193 Roundtrip, found 7 hours ago
CA $193
Roundtrip
found 7 hours ago
Select Alaska Airlines flight, departing Wed, Jan 14 from Bellingham to Seattle, returning Tue, Mar 17, priced at CA $193 found 7 hours ago
Sat, Nov 22 - Sun, Nov 23
BLI
Bellingham
SEA
Seattle
CA $195 Roundtrip, found 11 hours ago
CA $195
Roundtrip
found 11 hours ago
Select Alaska Airlines flight, departing Sat, Nov 22 from Bellingham to Seattle, returning Sun, Nov 23, priced at CA $195 found 11 hours ago
Fri, Dec 5 - Mon, Dec 8
BLI
Bellingham
SEA
Seattle
CA $195 Roundtrip, found 2 days ago
CA $195
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Fri, Dec 5 from Bellingham to Seattle, returning Mon, Dec 8, priced at CA $195 found 2 days ago
Sat, Nov 22 - Sun, Nov 23
BLI
Bellingham
SEA
Seattle
CA $210 Roundtrip, found 11 hours ago
CA $210
Roundtrip
found 11 hours ago
Select Alaska Airlines flight, departing Sat, Nov 22 from Bellingham to Seattle, returning Sun, Nov 23, priced at CA $210 found 11 hours ago
Sat, Nov 22 - Sun, Nov 23
BLI
Bellingham
SEA
Seattle
CA $224 Roundtrip, found 11 hours ago
CA $224
Roundtrip
found 11 hours ago
Select Alaska Airlines flight, departing Sat, Nov 22 from Bellingham to Seattle, returning Sun, Nov 23, priced at CA $224 found 11 hours ago
Fri, Nov 14 - Fri, Nov 14
BLI
Bellingham
SEA
Seattle
CA $245 Roundtrip, found 5 days ago
CA $245
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Fri, Nov 14 from Bellingham to Seattle, returning Fri, Nov 14, priced at CA $245 found 5 days 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.