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

View AU$143 flight on Tue, 19 May 2026Opens in a new window

Flight 1

Popular airlines from Seattle-Tacoma International Airport (SEA) to Bellingham, WA (BLI-Bellingham Intl.)

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 35% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

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

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Thu, 21 May - Thu, 28 May
SEA
Seattle
BLI
Bellingham
AU$330 Return, found 4 days ago
AU$330
Return
found 4 days ago
Select Alaska Airlines flight, departing Thu, 21 May from Seattle to Bellingham, returning Thu, 28 May, priced at AU$330 found 4 days ago
Alaska Airlines
Thu, 21 May - Thu, 28 May
SEA
Seattle
BLI
Bellingham
AU$344 Return, found 4 days ago
AU$344
Return
found 4 days ago
Select Alaska Airlines flight, departing Thu, 21 May from Seattle to Bellingham, returning Thu, 28 May, priced at AU$344 found 4 days ago
Alaska Airlines
Thu, 21 May - Thu, 28 May
SEA
Seattle
BLI
Bellingham
AU$373 Return, found 4 days ago
AU$373
Return
found 4 days ago
Select Alaska Airlines flight, departing Thu, 21 May from Seattle to Bellingham, returning Thu, 28 May, priced at AU$373 found 4 days ago
Alaska Airlines
Thu, 21 May - Thu, 28 May
SEA
Seattle
BLI
Bellingham
AU$388 Return, found 4 days ago
AU$388
Return
found 4 days ago
Select Alaska Airlines flight, departing Thu, 21 May from Seattle to Bellingham, returning Thu, 28 May, priced at AU$388 found 4 days ago
Alaska Airlines
Tue, 19 May - Tue, 26 May
SEA
Seattle
BLI
Bellingham
AU$402 Return, found 6 days ago
AU$402
Return
found 6 days ago
Select Alaska Airlines flight, departing Tue, 19 May from Seattle to Bellingham, returning Tue, 26 May, priced at AU$402 found 6 days ago
Alaska Airlines
Thu, 21 May - Thu, 28 May
SEA
Seattle
BLI
Bellingham
AU$417 Return, found 4 days ago
AU$417
Return
found 4 days ago
Select Alaska Airlines flight, departing Thu, 21 May from Seattle to Bellingham, returning Thu, 28 May, priced at AU$417 found 4 days ago
Alaska Airlines
Fri, 12 June - Tue, 16 June
SEA
Seattle
BLI
Bellingham
AU$417 Return, found 4 days ago
AU$417
Return
found 4 days ago
Select Alaska Airlines flight, departing Fri, 12 June from Seattle to Bellingham, returning Tue, 16 June, priced at AU$417 found 4 days ago
Alaska Airlines
Thu, 21 May - Thu, 28 May
SEA
Seattle
BLI
Bellingham
AU$431 Return, found 4 days ago
AU$431
Return
found 4 days ago
Select Alaska Airlines flight, departing Thu, 21 May from Seattle to Bellingham, returning Thu, 28 May, priced at AU$431 found 4 days ago
Alaska Airlines
Tue, 19 May - Tue, 26 May
SEA
Seattle
BLI
Bellingham
AU$439 Return, found 6 days ago
AU$439
Return
found 6 days ago
Select Alaska Airlines flight, departing Tue, 19 May from Seattle to Bellingham, returning Tue, 26 May, priced at AU$439 found 6 days ago
American Airlines
Tue, 19 May - Tue, 26 May
SEA
Seattle
BLI
Bellingham
AU$599 Return, found 6 days ago
AU$599
Return
found 6 days ago
Select American Airlines flight, departing Tue, 19 May from Seattle to Bellingham, returning Tue, 26 May, priced at AU$599 found 6 days ago

Frequently asked questions

How much is a flight from Seattle - Tacoma Intl. Airport (SEA) to BLI?
If you're travelling from SEA to BLI, round-trip journeys start from AU$330. This figure is based on fares quoted within the last 7 days on Expedia for flights departing within the next year, so don't hang around. Book now and save yourself money and time. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Seattle - Tacoma Intl. Airport (SEA) to Bellingham International Airport?
The majority of flights can be cancelled online, but every air carrier has its own set of terms and conditions. If you do decide to cancel your flight, visit our Customer Service Portal and follow the instructions.
How do I find cheap flights from Sea-Tac Airport to Bellingham Intl. Airport (BLI) that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Seattle - Tacoma Intl. Airport (SEA) to BLI flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Sea-Tac Airport to BLI?
With a flight distance of 150 kilometres, it's only a short hop from Seattle - Tacoma Intl. Airport (SEA) to Bellingham Intl. Airport (BLI). It might be a quick flight, but it's still worth bringing along a book to read.
Which airlines fly direct from Seattle - Tacoma Intl. Airport (SEA) to Bellingham International Airport?
Check out the fares with Alaska Airlines (AS) if you want to travel straight from SEA to Bellingham International Airport. This popular airline operates 139 monthly flights, so you're sure to find one that suits your schedule.
Are Sea-Tac Airport to Bellingham Intl. Airport (BLI) flight tickets cheaper when they're purchased at the last minute?
Flight prices are always on the move, so not always. While last-minute deals between Sea-Tac Airport and Bellingham International Airport are of course possible, it's also a good idea to keep track of prices well before you fly. In fact, some air carriers announce their prices up to a year prior to the departure date. Expedia is continuously updating the biggest bargains around, so check back often and be ready to lock in your seat when prices drop.

Travel information

0
Origin airport
Seattle - Tacoma Intl.
Destination airport
Bellingham Intl.
Return price
AU$330
Distance
150 km

Explore a world of travel with Expedia

*Available to Expedia members.