$89 Cheap Flights from Seattle (SEA) to Bellingham (BLI)

View $89 flight on Sun, Oct 19, 2025Opens in a new window

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

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Cheap Flights from Seattle to Bellingham (SEA-BLI)

Prices were available within the past 7 days and start at $89 for one-way flights and $117 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Hawaiian Airlines
Tue, Feb 10 - Tue, Feb 24
SEA
Seattle
BLI
Bellingham
$117 Roundtrip, found 7 hours ago
$117
Roundtrip
found 7 hours ago
Select Hawaiian Airlines flight, departing Tue, Feb 10 from Seattle to Bellingham, returning Tue, Feb 24, priced at $117 found 7 hours ago
Alaska Airlines
Tue, Mar 3 - Sun, Mar 8
SEA
Seattle
BLI
Bellingham
$128 Roundtrip, just found
$128
Roundtrip
just found
Select Alaska Airlines flight, departing Tue, Mar 3 from Seattle to Bellingham, returning Sun, Mar 8, priced at $128 just found
Hawaiian Airlines
Sat, Oct 25 - Tue, Oct 28
SEA
Seattle
BLI
Bellingham
$137 Roundtrip, found 3 hours ago
$137
Roundtrip
found 3 hours ago
Select Hawaiian Airlines flight, departing Sat, Oct 25 from Seattle to Bellingham, returning Tue, Oct 28, priced at $137 found 3 hours ago
Hawaiian Airlines
Fri, Feb 27 - Mon, Mar 2
SEA
Seattle
BLI
Bellingham
$138 Roundtrip, just found
$138
Roundtrip
just found
Select Hawaiian Airlines flight, departing Fri, Feb 27 from Seattle to Bellingham, returning Mon, Mar 2, priced at $138 just found
Hawaiian Airlines
Thu, Oct 23 - Sat, Oct 25
SEA
Seattle
BLI
Bellingham
$148 Roundtrip, found 3 hours ago
$148
Roundtrip
found 3 hours ago
Select Hawaiian Airlines flight, departing Thu, Oct 23 from Seattle to Bellingham, returning Sat, Oct 25, priced at $148 found 3 hours ago
Alaska Airlines
Tue, Mar 31 - Sat, Apr 18
SEA
Seattle
BLI
Bellingham
$148 Roundtrip, found 7 hours ago
$148
Roundtrip
found 7 hours ago
Select Alaska Airlines flight, departing Tue, Mar 31 from Seattle to Bellingham, returning Sat, Apr 18, priced at $148 found 7 hours ago
Hawaiian Airlines
Tue, Mar 3 - Wed, Mar 4
SEA
Seattle
BLI
Bellingham
$157 Roundtrip, just found
$157
Roundtrip
just found
Select Hawaiian Airlines flight, departing Tue, Mar 3 from Seattle to Bellingham, returning Wed, Mar 4, priced at $157 just found
Hawaiian Airlines
Sun, Feb 15 - Mon, Mar 2
SEA
Seattle
BLI
Bellingham
$158 Roundtrip, found 7 hours ago
$158
Roundtrip
found 7 hours ago
Select Hawaiian Airlines flight, departing Sun, Feb 15 from Seattle to Bellingham, returning Mon, Mar 2, priced at $158 found 7 hours ago
Alaska Airlines
Tue, Oct 7 - Fri, Oct 10
SEA
Seattle
BLI
Bellingham
$167 Roundtrip, found 5 days ago
$167
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Tue, Oct 7 from Seattle to Bellingham, returning Fri, Oct 10, priced at $167 found 5 days ago
American Airlines
Tue, Jan 27 - Sat, Jan 31
SEA
Seattle
BLI
Bellingham
$197 Roundtrip, found 18 hours ago
$197
Roundtrip
found 18 hours ago
Select American Airlines flight, departing Tue, Jan 27 from Seattle to Bellingham, returning Sat, Jan 31, priced at $197 found 18 hours ago

Find the cheapest month to fly from Seattle (SEA) to Bellingham (BLI)

October is typically the cheapest month to fly

From $117 - $318 per traveler.

Alternative airports near Bellingham

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Abbotsford Intl. YXX. Average driving time to city center is 37 minutes. Flights from $631
YXX
Abbotsford Intl.
Average driving time to city center37 min
Flights from $631
Flights from Seattle (SEA) to Bellingham (BLI)
Origin airport
Seattle - Tacoma Intl.
Destination airport
Bellingham Intl.
Airlines serving
Alaska Airlines, American Airlines, Hawaiian Airlines
Roundtrip price
$117
Distance
94 mi

Seattle to Bellingham Flights

The cheapest times to fly from Seattle to Bellingham

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Seattle to Bellingham are during the month of February. You can find some of the cheapest flights from Seattle to Bellingham with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Seattle to Bellingham

Sunday is one of the best days to book for cheap flights from Seattle to Bellingham: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Seattle to Bellingham

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Seattle to Bellingham in 2025. You can also book with separate airlines for your outbound and return journeys, from $89 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Seattle to Bellingham flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Seattle to Bellingham airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Seattle - Tacoma Intl. Airport (SEA) to Bellingham Intl. Airport (BLI) cost?
Get a cheap one-way flight from $89 or cheap return flight from $117 from Seattle - Tacoma Intl. Airport (SEA) to Bellingham Intl. Airport (BLI) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Seattle - Tacoma Intl. Airport (SEA) to Bellingham Intl. Airport (BLI)?
February is the cheapest month to fly from SEA to BLI. Traveling during an off-peak travel window is often the key to better flight prices.
Which airlines fly direct from Seattle - Tacoma Intl. Airport (SEA) to Bellingham Intl. Airport (BLI)?
You can fly nonstop from Seattle - Tacoma Intl. Airport (SEA) to Bellingham Intl. Airport (BLI) on an Alaska Airlines flight.
What is the cheapest airline that flies from Seattle - Tacoma Intl. Airport (SEA) to Bellingham Intl. Airport (BLI)?
Use the filters on Expedia to compare airlines and find the most affordable carrier that'll fly you from SEA to BLI. Then, sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Seattle - Tacoma Intl. Airport (SEA) to Bellingham Intl. Airport (BLI)?
When jetting out of Seattle - Tacoma Intl. Airport (SEA), you'll have a choice from an average of 3 daily direct flights to Bellingham Intl. Airport (BLI).
What are the most popular departure times for flights from Seattle - Tacoma Intl. Airport (SEA) to Bellingham Intl. Airport (BLI)?
More passengers fly between SEA and BLI at 8 PM than at any other point in the day. Rather skip the crowds? Try choosing a quieter departure window and you're likely to save on your fare as well.
What day of the week has the most flights from SEA to BLI?
If you travel on a Thursday, you'll get the biggest range of choices for flights from Seattle - Tacoma Intl. Airport (SEA) to Bellingham Intl. Airport (BLI).
What is the earliest flight from Seattle - Tacoma Intl. Airport (SEA) to Bellingham Intl. Airport (BLI)?
Catch the earliest flight at around 11:20AM UTC-8, departing from Seattle - Tacoma Intl. Airport (SEA). You'll be flying for about 58m, touching down at Bellingham Intl. Airport (BLI) at approximately 12:18PM UTC-8.
How long does it take to fly from Seattle - Tacoma Intl. Airport (SEA) to Bellingham Intl. Airport (BLI)?
Typically, it takes 50 minutes to cover the 95 mi from SEA to BLI.
What airline has the least delays from SEA to BLI?
American Airlines has the best performance for on-time direct flights from Seattle - Tacoma Intl. Airport (SEA) to Bellingham Intl. Airport (BLI), with an on-time score of 100%. Use the Expedia App to see your flight status before you jet off and get immediate updates about any trip changes.
What is the best time to fly from Seattle - Tacoma Intl. Airport (SEA) to Bellingham Intl. Airport (BLI)?
To touch down at Bellingham Intl. Airport (BLI) on time, book a flight that takes off from Seattle - Tacoma Intl. Airport (SEA) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Bellingham from Seattle - Tacoma Intl. Airport (SEA)?
If you're flying on a direct flight from Seattle - Tacoma Intl. Airport (SEA) to Bellingham, Bellingham Intl. Airport (BLI) is the only airport you can land at.
Is it cheaper to buy a plane ticket from Seattle - Tacoma Intl. Airport (SEA) to Bellingham Intl. Airport (BLI) last-minute?
Last-minute fares from SEA to BLI are generally more expensive. For the best prices, start looking for flights as early as possible. That said, if you can play around with your travel dates, you may score a cheap fare right before you leave.
Is it cheaper to book a SEA to BLI flight and hotel package?
You'll typically save money by securing a SEA to BLI flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one place. Once you've chosen your ideal accommodations and flights, you can add extras like tours, car rentals and activities.
Can I cancel or change the date of my flight from Seattle - Tacoma Intl. Airport (SEA) to Bellingham Intl. Airport (BLI)?
In most cases, you can reschedule or cancel your SEA to BLI flight. However, additional fees may apply, especially if your booking was made over 24 hours ago. Check your itinerary for the airline's fees and guidelines on flight changes, or if you want more details, head to our Customer Service portal.

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*Available to One Key members.