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Cheap flights from Bellingham to Seattle from $102

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 4/28. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Hawaiian Airlines Logo
4:19 pm - 5:20 pm
BLI
-
SEA
1h 01mnonstop
Hawaiian Airlines Logo
10:12 am - 11:13 am
SEA
-
BLI
1h 01mnonstop
$158Hawaiian Airlines
Thu, Mar 12 - Sun, Mar 15
Alaska Airlines Logo
11:53 am - 12:54 pm
BLI
-
SEA
1h 01mnonstop
Alaska Airlines Logo
10:12 am - 11:13 am
SEA
-
BLI
1h 01mnonstop
$167Alaska Airlines
Thu, Mar 12 - Sun, Mar 15
Alaska Airlines Logo
5:53 pm - 6:50 pm
BLI
-
SEA
0h 57mnonstop
Alaska Airlines Logo
11:11 pm - 12:09 am
SEA
-
BLI
0h 58mnonstop
$194Alaska Airlines
Fri, Jun 5 - Wed, Jun 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
$197Alaska Airlines
Fri, May 1 - Mon, May 11
Alaska Airlines Logo
7:19 pm - 8:17 pm
BLI
-
SEA
0h 58mnonstop
Alaska Airlines Logo
11:24 am - 12:20 pm
SEA
-
BLI
0h 56mnonstop
$207Alaska Airlines
Tue, May 5 - Fri, May 8
Alaska Airlines Logo
6:19 pm - 7:14 pm
BLI
-
SEA
0h 55mnonstop
Alaska Airlines Logo
11:20 am - 12:16 pm
SEA
-
BLI
0h 56mnonstop
$217Alaska Airlines
Thu, Mar 19 - Thu, Mar 26
Alaska Airlines Logo
4:01 pm - 9:26 pm
BLI
-
SEA
5h 25m
1 stop
Alaska Airlines Logo
11:36 am - 3:21 pm
SEA
-
BLI
3h 45m
1 stop
$227Alaska Airlines
Fri, May 1 - Mon, May 11
Alaska Airlines Logo
6:19 pm - 7:14 pm
BLI
-
SEA
0h 55mnonstop
Alaska Airlines Logo
11:20 am - 12:16 pm
SEA
-
BLI
0h 56mnonstop
$232Alaska Airlines
Sun, Apr 5 - Wed, Apr 8
Alaska Airlines Logo
4:01 pm - 6:36 pm
BLI
-
SEA
2h 35m
1 stop
Alaska Airlines Logo
11:24 am - 12:20 pm
SEA
-
BLI
0h 56mnonstop
$237Alaska Airlines
Tue, May 5 - Fri, May 8
Multiple Airlines Logo
6:00 am - 8:20 pm
BLI
-
SEA
14h 20m
1 stop
Multiple Airlines Logo
9:35 pm - 11:30 pm
SEA
-
BLI
25h 55m
1 stop
$239Multiple Airlines
Thu, Mar 12 - Sun, Mar 15

Alaska Airlines flights from Bellingham to Seattle

Our best Alaska Airlines deals on Bellingham to Seattle flight tickets
Alaska Airlines
Mar 12
BLI11:53 amBellingham
1h 01m
SEA12:54 pmSeattle/Tacoma Intl
Mar 15
SEA10:12 amSeattle/Tacoma Intl
1h 01m
BLI11:13 amBellingham
$167
Alaska Airlines
Jun 5
BLI5:53 pmBellingham
0h 57m
SEA6:50 pmSeattle/Tacoma Intl
Jun 10
SEA11:11 pmSeattle/Tacoma Intl
0h 58m
BLI12:09 amBellingham
$194
Alaska Airlines
May 1
BLI7:19 pmBellingham
0h 58m
SEA8:17 pmSeattle/Tacoma Intl
May 11
SEA6:30 pmSeattle/Tacoma Intl
4h 12m
1 stop
BLI10:42 pmBellingham
$197

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 February 21, 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

BellinghamSeattle

BLI - SEA

BLISEA

Bellingham

Thu 3/12

4:19 pm-5:20 pm

Nonstop1h 01m

Seattle/Tacoma Intl

Sun 3/15

10:12 am-11:13 am

Nonstop1h 01m

$158

BellinghamSeattle

BLI - SEA

BLISEA

Bellingham

Thu 3/12

11:53 am-12:54 pm

Nonstop1h 01m

Seattle/Tacoma Intl

Sun 3/15

10:12 am-11:13 am

Nonstop1h 01m

$167

BellinghamSeattle

BLI - SEA

BLISEA

Bellingham

Fri 6/5

5:53 pm-6:50 pm

Nonstop0h 57m

Seattle/Tacoma Intl

Wed 6/10

11:11 pm-12:09 am

Nonstop0h 58m

$194

BellinghamSeattle

BLI - SEA

BLISEA

Bellingham

Fri 5/1

7:19 pm-8:17 pm

Nonstop0h 58m

Seattle/Tacoma Intl

Mon 5/11

6:30 pm-10:42 pm

1 stop4h 12m

$197

BellinghamSeattle

BLI - SEA

BLISEA

Bellingham

Tue 5/5

7:19 pm-8:17 pm

Nonstop0h 58m

Seattle/Tacoma Intl

Fri 5/8

11:24 am-12:20 pm

Nonstop0h 56m

$207

BellinghamSeattle

BLI - SEA

BLISEA

Bellingham

Thu 3/19

6:19 pm-7:14 pm

Nonstop0h 55m

Seattle/Tacoma Intl

Thu 3/26

11:20 am-12:16 pm

Nonstop0h 56m

$217

BellinghamSeattle

BLI - SEA

BLISEA

Bellingham

Fri 5/1

4:01 pm-9:26 pm

1 stop5h 25m

Seattle/Tacoma Intl

Mon 5/11

11:36 am-3:21 pm

1 stop3h 45m

$227

BellinghamSeattle

BLI - SEA

BLISEA

Bellingham

Sun 4/5

6:19 pm-7:14 pm

Nonstop0h 55m

Seattle/Tacoma Intl

Wed 4/8

11:20 am-12:16 pm

Nonstop0h 56m

$232

BellinghamSeattle

BLI - SEA

BLISEA

Bellingham

Tue 5/5

4:01 pm-6:36 pm

1 stop2h 35m

Seattle/Tacoma Intl

Fri 5/8

11:24 am-12:20 pm

Nonstop0h 56m

$237

BellinghamSeattle

BLI - SEA

BLISEA

Bellingham

Thu 3/12

6:00 am-8:20 pm

1 stop14h 20m

Seattle/Tacoma Intl

Sun 3/15

9:35 pm-11:30 pm

1 stop25h 55m

$239

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 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 $476. 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 $625.

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 $440 when looking at flights departing at noon. Flights to Seattle are more costly in the morning, with an average ticket price of $579. 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 February 2026, prices for Bellingham to Seattle flights are approximately 23% 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

$252

Fastest flight time

0h 55m

Direct flights

Every day

Airports in Seattle

1 airport
The best one-way flight to Seattle from Bellingham in the past 72 hours is $252. The best round-trip flight deal from Bellingham to Seattle found on momondo in the last 72 hours is $361.
The fastest flight from Bellingham to Seattle takes 0h 55m
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

  • 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 55m.

  • 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
8.0
11,918 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 16 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 8.0/10.

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
Kent
Marysville
Redmond
Puyallup
Cle Elum
Lakewood
Tukwila
Federal Way
Kirkland
Fife
Westport
Centralia
Tumwater

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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