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 $172 round trip and CA $125 one way. Prices and availability subject to change. Additional terms may apply.

Fri., Sep. 26 - Sat., Sep. 27
BLI
Bellingham
SEA
Seattle
CA $172 Roundtrip, found 2 days ago
CA $172
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Fri., Sep. 26 from Bellingham to Seattle, returning Sat., Sep. 27, priced at CA $172 found 2 days ago
Fri., Oct. 24 - Sun., Oct. 26
BLI
Bellingham
SEA
Seattle
CA $186 Roundtrip, found 2 days ago
CA $186
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Fri., Oct. 24 from Bellingham to Seattle, returning Sun., Oct. 26, priced at CA $186 found 2 days ago
Sat., Aug. 23 - Tue., Sep. 9
BLI
Bellingham
SEA
Seattle
CA $188 Roundtrip, found 4 days ago
CA $188
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Sat., Aug. 23 from Bellingham to Seattle, returning Tue., Sep. 9, priced at CA $188 found 4 days ago
Fri., Sep. 26 - Sat., Sep. 27
BLI
Bellingham
SEA
Seattle
CA $200 Roundtrip, found 2 days ago
CA $200
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Fri., Sep. 26 from Bellingham to Seattle, returning Sat., Sep. 27, priced at CA $200 found 2 days ago
Thu., Sep. 4 - Mon., Sep. 8
BLI
Bellingham
SEA
Seattle
CA $202 Roundtrip, found 3 days ago
CA $202
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Thu., Sep. 4 from Bellingham to Seattle, returning Mon., Sep. 8, priced at CA $202 found 3 days ago
Fri., Oct. 24 - Sun., Oct. 26
BLI
Bellingham
SEA
Seattle
CA $214 Roundtrip, found 2 days ago
CA $214
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Fri., Oct. 24 from Bellingham to Seattle, returning Sun., Oct. 26, priced at CA $214 found 2 days ago
Fri., Oct. 24 - Sun., Oct. 26
BLI
Bellingham
SEA
Seattle
CA $215 Roundtrip, found 2 days ago
CA $215
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Fri., Oct. 24 from Bellingham to Seattle, returning Sun., Oct. 26, priced at CA $215 found 2 days ago
Sat., Aug. 23 - Tue., Sep. 9
BLI
Bellingham
SEA
Seattle
CA $216 Roundtrip, found 4 days ago
CA $216
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Sat., Aug. 23 from Bellingham to Seattle, returning Tue., Sep. 9, priced at CA $216 found 4 days ago
Fri., Sep. 26 - Sat., Sep. 27
BLI
Bellingham
SEA
Seattle
CA $228 Roundtrip, found 2 days ago
CA $228
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Fri., Sep. 26 from Bellingham to Seattle, returning Sat., Sep. 27, priced at CA $228 found 2 days ago
Fri., Oct. 24 - Sun., Oct. 26
BLI
Bellingham
SEA
Seattle
CA $229 Roundtrip, found 2 days ago
CA $229
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Fri., Oct. 24 from Bellingham to Seattle, returning Sun., Oct. 26, priced at CA $229 found 2 days ago
Thu., Sep. 4 - Mon., Sep. 8
BLI
Bellingham
SEA
Seattle
CA $243 Roundtrip, found 3 days ago
CA $243
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Thu., Sep. 4 from Bellingham to Seattle, returning Mon., Sep. 8, priced at CA $243 found 3 days ago
Thu., Sep. 4 - Mon., Sep. 8
BLI
Bellingham
SEA
Seattle
CA $257 Roundtrip, found 3 days ago
CA $257
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Thu., Sep. 4 from Bellingham to Seattle, returning Mon., Sep. 8, priced at CA $257 found 3 days ago
Thu., Sep. 4 - Mon., Sep. 8
BLI
Bellingham
SEA
Seattle
CA $270 Roundtrip, found 3 days ago
CA $270
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Thu., Sep. 4 from Bellingham to Seattle, returning Mon., Sep. 8, priced at CA $270 found 3 days ago

Seattle - Tacoma Intl. flight + hotel packages - economy flights

Price found within the past 48 hours. Click for updated prices.
Bush House Inn

Bush House Inn

3 out of 5
per person
Jul 25 - Jul 27
found 7 hours ago
Roundtrip non-stop flight included
Bellingham (BLI) to Seattle (SEA)
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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.