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Cheap flights from Bellingham to Seattle from $109

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Bellingham to Seattle departing on 6/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Alaska Airlines Logo
6:00 am - 6:51 am
BLI
-
SEA
0h 51mnonstop
Alaska Airlines Logo
11:10 pm - 12:07 am
SEA
-
BLI
0h 57mnonstop
$177Alaska Airlines
Sun, May 24 - Thu, Jun 4
Alaska Airlines Logo
1:00 pm - 1:56 pm
BLI
-
SEA
0h 56mnonstop
Alaska Airlines Logo
5:42 pm - 6:39 pm
SEA
-
BLI
0h 57mnonstop
$227Alaska Airlines
Fri, May 1 - Sun, May 10
Alaska Airlines Logo
7:55 am - 10:42 am
BLI
-
SEA
2h 47m
1 stop
Alaska Airlines Logo
11:10 pm - 12:07 am
SEA
-
BLI
0h 57mnonstop
$232Alaska Airlines
Sun, May 24 - Thu, Jun 4
Alaska Airlines Logo
7:19 pm - 8:17 pm
BLI
-
SEA
0h 58mnonstop
Alaska Airlines Logo
7:05 am - 3:21 pm
SEA
-
BLI
8h 16m
1 stop
$255Alaska Airlines
Fri, May 1 - Sun, May 10
Alaska Airlines Logo
7:19 pm - 8:17 pm
BLI
-
SEA
0h 58mnonstop
Alaska Airlines Logo
6:30 pm - 10:42 pm
SEA
-
BLI
4h 12m
1 stop
$257Alaska Airlines
Fri, May 1 - Sun, May 10
Alaska Airlines Logo
1:49 pm - 2:46 pm
BLI
-
SEA
0h 57mnonstop
Alaska Airlines Logo
3:50 pm - 4:46 pm
SEA
-
BLI
0h 56mnonstop
$262Alaska Airlines
Sat, Aug 15 - Sat, Aug 15
Alaska Airlines Logo
5:26 pm - 6:25 pm
BLI
-
SEA
0h 59mnonstop
Alaska Airlines Logo
5:40 pm - 6:39 pm
SEA
-
BLI
0h 59mnonstop
$267Alaska Airlines
Sun, Aug 16 - Wed, Aug 19
Alaska Airlines Logo
4:01 pm - 9:48 am
BLI
-
SEA
17h 47m
1 stop
Alaska Airlines Logo
7:05 am - 3:21 pm
SEA
-
BLI
8h 16m
1 stop
$283Alaska Airlines
Fri, May 1 - Sun, May 10
Alaska Airlines Logo
8:30 am - 1:03 pm
BLI
-
SEA
4h 33m
1 stop
Alaska Airlines Logo
11:08 pm - 12:06 am
SEA
-
BLI
0h 58mnonstop
$287Alaska Airlines
Sat, Jul 11 - Sat, Jul 25
Alaska Airlines Logo
8:30 am - 1:03 pm
BLI
-
SEA
4h 33m
1 stop
Alaska Airlines Logo
3:50 pm - 4:46 pm
SEA
-
BLI
0h 56mnonstop
$291Alaska Airlines
Sat, Aug 15 - Sat, Aug 15

Alaska Airlines flights from Bellingham to Seattle

Our best Alaska Airlines deals on Bellingham to Seattle flight tickets
Alaska Airlines
May 24
BLI6:00 amBellingham
0h 51m
SEA6:51 amSeattle/Tacoma Intl
Jun 4
SEA11:10 pmSeattle/Tacoma Intl
0h 57m
BLI12:07 amBellingham
$177
Alaska Airlines
May 1
BLI1:00 pmBellingham
0h 56m
SEA1:56 pmSeattle/Tacoma Intl
May 10
SEA5:42 pmSeattle/Tacoma Intl
0h 57m
BLI6:39 pmBellingham
$227
Alaska Airlines
May 24
BLI7:55 amBellingham
2h 47m
1 stop
SEA10:42 amSeattle/Tacoma Intl
Jun 4
SEA11:10 pmSeattle/Tacoma Intl
0h 57m
BLI12:07 amBellingham
$232

American Airlines flights from Bellingham to Seattle

Our best American Airlines deals on Bellingham to Seattle flight tickets
American Airlines
Apr 19
BLI5:20 amBellingham
0h 53m
SEA6:13 amSeattle/Tacoma Intl
Apr 20
SEA4:44 pmSeattle/Tacoma Intl
0h 55m
BLI5:39 pmBellingham
$487
American Airlines
Apr 19
BLI5:20 amBellingham
0h 53m
SEA6:13 amSeattle/Tacoma Intl
Apr 23
SEA5:42 pmSeattle/Tacoma Intl
0h 57m
BLI6:39 pmBellingham
$507

momondo Fare Finder

 
Customize your flight search to find flights from Bellingham to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated April 7, 2026.
Use the filters below to find and compare flights from Bellingham to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

BellinghamSeattle

BLI - SEA

BLISEA

Bellingham

Sun 5/24

6:00 am-6:51 am

Nonstop0h 51m

Seattle/Tacoma Intl

Thu 6/4

11:10 pm-12:07 am

Nonstop0h 57m

$177

BellinghamSeattle

BLI - SEA

BLISEA

Bellingham

Fri 5/1

1:00 pm-1:56 pm

Nonstop0h 56m

Seattle/Tacoma Intl

Sun 5/10

5:42 pm-6:39 pm

Nonstop0h 57m

$227

BellinghamSeattle

BLI - SEA

BLISEA

Bellingham

Sun 5/24

7:55 am-10:42 am

1 stop2h 47m

Seattle/Tacoma Intl

Thu 6/4

11:10 pm-12:07 am

Nonstop0h 57m

$232

BellinghamSeattle

BLI - SEA

BLISEA

Bellingham

Fri 5/1

7:19 pm-8:17 pm

Nonstop0h 58m

Seattle/Tacoma Intl

Sun 5/10

7:05 am-3:21 pm

1 stop8h 16m

$255

BellinghamSeattle

BLI - SEA

BLISEA

Bellingham

Fri 5/1

7:19 pm-8:17 pm

Nonstop0h 58m

Seattle/Tacoma Intl

Sun 5/10

6:30 pm-10:42 pm

1 stop4h 12m

$257

BellinghamSeattle

BLI - SEA

BLISEA

Bellingham

Sat 8/15

1:49 pm-2:46 pm

Nonstop0h 57m

Seattle/Tacoma Intl

Sat 8/15

3:50 pm-4:46 pm

Nonstop0h 56m

$262

BellinghamSeattle

BLI - SEA

BLISEA

Bellingham

Sun 8/16

5:26 pm-6:25 pm

Nonstop0h 59m

Seattle/Tacoma Intl

Wed 8/19

5:40 pm-6:39 pm

Nonstop0h 59m

$267

BellinghamSeattle

BLI - SEA

BLISEA

Bellingham

Fri 5/1

4:01 pm-9:48 am

1 stop17h 47m

Seattle/Tacoma Intl

Sun 5/10

7:05 am-3:21 pm

1 stop8h 16m

$283

BellinghamSeattle

BLI - SEA

BLISEA

Bellingham

Sat 7/11

8:30 am-1:03 pm

1 stop4h 33m

Seattle/Tacoma Intl

Sat 7/25

11:08 pm-12:06 am

Nonstop0h 58m

$287

BellinghamSeattle

BLI - SEA

BLISEA

Bellingham

Sat 8/15

8:30 am-1:03 pm

1 stop4h 33m

Seattle/Tacoma Intl

Sat 8/15

3:50 pm-4:46 pm

Nonstop0h 56m

$291

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Seattle from

How to get the cheapest flight ticket from Bellingham to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Bellingham and Seattle?

What is the cheapest day to depart on your flight to Seattle?

On average, the least expensive day to fly to Seattle from Bellingham is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $478. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Monday is the most expensive day to depart from Bellingham because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $618.

What is the cheapest time of day to depart on your flight to Seattle?

Flying to Seattle from Bellingham at noon is the least expensive time of day to depart. momondo users have found prices as low as $420 when looking at flights departing at noon. Flights to Seattle are more costly in the morning, with an average ticket price of $564. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Bellingham to Seattle/Tacoma Intl flight route?

Fly from Bellingham to Seattle/Tacoma Intl for the best Bellingham - Seattle/Tacoma Intl flight prices

What cabin class options are available on Bellingham to Seattle/Tacoma Intl flights?

There are 4 cabin classes available to choose from on Bellingham to Seattle/Tacoma Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Bellingham to Seattle flight prices changed over time?

As of April 2026, prices for Bellingham to Seattle flights are approximately 24% more expensive when compared to flights at the same time last year.

When to book flights from Bellingham to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from Bellingham to Seattle according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Bellingham to Seattle (BLI to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Bellingham to Seattle

Best Price Found

$183

Fastest flight time

0h 54m

Direct flights

Every day

Airports in Seattle

1 airport
The best one-way flight to Seattle from Bellingham in the past 72 hours is $183. The best round-trip flight deal from Bellingham to Seattle found on momondo in the last 72 hours is $428.
The fastest flight from Bellingham to Seattle takes 0h 54m
Direct flights go from Bellingham to Seattle every day.
There is 1 airport in Seattle. From Bellingham there are direct flights to Seattle/Tacoma Intl (SEA).
Search flight deals

Frequently asked questions about flying from Bellingham to Seattle

  • How far is Bellingham to Seattle/Tacoma Intl by plane?

    There are 79.4 mi between Bellingham and Seattle/Tacoma Intl. By plane, this route typically takes 0h 54m.

  • When did momondo last update prices for flights from Bellingham Airport to Seattle/Tacoma Intl Airport?

    Prices for flights from Bellingham Airport to Seattle/Tacoma Intl Airport refresh daily.

  • How many operators does momondo search for flights from Bellingham Airport to Seattle/Tacoma Intl Airport?

  • How old do you have to be to fly from Bellingham Airport to Seattle/Tacoma Intl Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Bellingham Airport to Seattle/Tacoma Intl Airport.

  • What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

    The necessary travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Bellingham to Seattle?

  • What is the most popular airline from Bellingham to Seattle?

Best airlines flying from Bellingham to Seattle

Compare and see reviews for airlines that fly from Bellingham to Seattle with momondo
Airline
Rating
Free Cancellation
Price
Alaska AirlinesPriceFrom $127Free CancellationRating
7.9
12,179 reviews
Search Alaska Airlines flights

  • Alaska Airlines Flights From Bellingham to Seattle

    Alaska Airlines is one of the most popular airlines flying from Bellingham to Seattle, operating 15 flights/week on average for this route. A good Alaska Airlines flight deal for Bellingham to Seattle starts from $127 round-trip, up to an average price of $238. Our users have rated Alaska Airlines at 7.9/10.

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
Leavenworth
SeaTac
Ocean Shores
Renton
Olympia
Lynnwood
Redmond
Kent
Marysville
Puyallup
Lakewood
Cle Elum
Tukwila
Federal Way
Centralia
Fife
Westport
Tumwater
Shoreline

Why use momondo?

Why should I use momondo to find a flight deal from Bellingham to Seattle?

Finding the right flight to Seattle from Bellingham is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Seattle quick and easy, saving you time and money.

Can I find flights from Bellingham to Seattle with flexible booking policies on momondo?

Flights from Bellingham to Seattle with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Bellingham to Seattle?

Once you have performed a search for Bellingham to Seattle flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Bellingham to Seattle right now. Can momondo alert me if prices change?

Price alerts on flights to Seattle from Bellingham are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Seattle trip

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