What is the cheapest airline that flies from Bellingham to Seattle/Tacoma Intl?

Alaska Airlines and Hawaiian Airlines are the most popular carriers operating from Bellingham to Seattle/Tacoma Intl

How many flights depart from Bellingham to Seattle on average per week?

As of December 2025, 98 flights take off from Bellingham and land in Seattle each week. The most common flight departure day for this route is Mon, with 14% of weekly flights taking off on this day.

How many flights depart from Bellingham to Seattle on average per day?

As of December 2025, there are 14 flights per day flying from Bellingham to Seattle. The most common time of day flights depart is 9:00AM, with 36% of flights taking off at noon.

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?

As of December 2025, there is 1 operator available to choose from 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.

$88 Cheap Flights from Bellingham to Seattle in 2025/26

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Find the cheapest flights from Bellingham to Seattle

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Enter your travel dates to find the best prices.

11:53 am - 12:54 pm

BLI

SEA

1h 01mnonstop

10:12 am - 11:13 am

SEA

BLI

1h 01mnonstop

$138Alaska Airlines

jue., feb. 26 - dom., mar. 1

1:03 pm - 2:00 pm

BLI

SEA

0h 57mnonstop

11:10 pm - 12:06 am

SEA

BLI

0h 56mnonstop

$148Alaska Airlines

sáb., ene. 17 - dom., ene. 25

1:03 pm - 2:00 pm

BLI

SEA

0h 57mnonstop

11:10 pm - 12:06 am

SEA

BLI

0h 56mnonstop

$178Alaska Airlines

dom., ene. 18 - mié., ene. 21

6:25 pm - 7:17 pm

BLI

SEA

0h 52mnonstop

4:35 pm - 5:25 pm

SEA

BLI

0h 50mnonstop

$188Alaska Airlines

lun., mar. 23 - lun., mar. 30

4:06 pm - 5:01 pm

BLI

SEA

0h 55mnonstop

11:20 pm - 12:16 am

SEA

BLI

0h 56mnonstop

$258Alaska Airlines

mar., dic. 23 - sáb., dic. 27

5:15 am - 6:20 am

BLI

SEA

1h 05mnonstop

11:10 pm - 12:06 am

SEA

BLI

0h 56mnonstop

$259American Airlines

mié., ene. 7 - jue., ene. 8

4:06 pm - 5:01 pm

BLI

SEA

0h 55mnonstop

9:27 pm - 10:22 pm

SEA

BLI

0h 55mnonstop

$288Alaska Airlines

mar., dic. 23 - lun., dic. 29

1:03 pm - 2:00 pm

BLI

SEA

0h 57mnonstop

11:05 pm - 8:19 pm

SEA

BLI

45h 14m2 stops

$314Multiple Airlines

mié., ene. 7 - mié., ene. 14

1:03 pm - 2:00 pm

BLI

SEA

0h 57mnonstop

11:05 pm - 10:07 pm

SEA

BLI

47h 02m3 stops

$344Multiple Airlines

mié., ene. 7 - mar., ene. 13

1:03 pm - 2:00 pm

BLI

SEA

0h 57mnonstop

11:05 pm - 1:51 pm

SEA

BLI

38h 46m2 stops

$378Multiple Airlines

mié., ene. 7 - mar., ene. 13

Alaska Airlines flights from Bellingham to Seattle

Our best Alaska Airlines deals on Bellingham to Seattle flight tickets

Alaska Airlines

Feb 26

BLI11:53 amBellingham

1h 01m

SEA12:54 pmSeattle/Tacoma Intl

Mar 1

SEA10:12 amSeattle/Tacoma Intl

1h 01m

BLI11:13 amBellingham

$138

Find similar

Alaska Airlines

Jan 17

BLI1:03 pmBellingham

0h 57m

SEA2:00 pmSeattle/Tacoma Intl

Jan 25

SEA11:10 pmSeattle/Tacoma Intl

0h 56m

BLI12:06 amBellingham

$148

Find similar

Alaska Airlines

Jan 18

BLI1:03 pmBellingham

0h 57m

SEA2:00 pmSeattle/Tacoma Intl

Jan 21

SEA11:10 pmSeattle/Tacoma Intl

0h 56m

BLI12:06 amBellingham

$178

Find similar

American Airlines flights from Bellingham to Seattle

Our best American Airlines deals on Bellingham to Seattle flight tickets

American Airlines

Jan 7

BLI5:15 amBellingham

1h 05m

SEA6:20 amSeattle/Tacoma Intl

Jan 8

SEA11:10 pmSeattle/Tacoma Intl

0h 56m

BLI12:06 amBellingham

$259

Find similar

American Airlines

Dec 14

BLI5:20 amBellingham

0h 59m

SEA6:19 amSeattle/Tacoma Intl

Dec 16

SEA11:10 pmSeattle/Tacoma Intl

0h 56m

BLI12:06 amBellingham

$539

Find similar

American Airlines

Dec 12

BLI5:20 amBellingham

0h 59m

SEA6:19 amSeattle/Tacoma Intl

Dec 16

SEA2:44 pmSeattle/Tacoma Intl

0h 57m

BLI3:41 pmBellingham

$639

Find similar

Fly from

Fly to

Route

Depart

Return

Price

BellinghamSeattle

BLI - SEA

BLISEA

Bellingham

jue. 2/26

11:53 am-12:54 pm

Nonstop1h 01m

Seattle/Tacoma Intl

dom. 3/1

10:12 am-11:13 am

Nonstop1h 01m

$138

BellinghamSeattle

BLI - SEA

BLISEA

Bellingham

sáb. 1/17

1:03 pm-2:00 pm

Nonstop0h 57m

Seattle/Tacoma Intl

dom. 1/25

11:10 pm-12:06 am

Nonstop0h 56m

$148

BellinghamSeattle

BLI - SEA

BLISEA

Bellingham

dom. 1/18

1:03 pm-2:00 pm

Nonstop0h 57m

Seattle/Tacoma Intl

mié. 1/21

11:10 pm-12:06 am

Nonstop0h 56m

$178

BellinghamSeattle

BLI - SEA

BLISEA

Bellingham

lun. 3/23

6:25 pm-7:17 pm

Nonstop0h 52m

Seattle/Tacoma Intl

lun. 3/30

4:35 pm-5:25 pm

Nonstop0h 50m

$188

BellinghamSeattle

BLI - SEA

BLISEA

Bellingham

mar. 12/23

4:06 pm-5:01 pm

Nonstop0h 55m

Seattle/Tacoma Intl

sáb. 12/27

11:20 pm-12:16 am

Nonstop0h 56m

$258

BellinghamSeattle

BLI - SEA

BLISEA

Bellingham

mié. 1/7

5:15 am-6:20 am

Nonstop1h 05m

Seattle/Tacoma Intl

jue. 1/8

11:10 pm-12:06 am

Nonstop0h 56m

$259

BellinghamSeattle

BLI - SEA

BLISEA

Bellingham

mar. 12/23

4:06 pm-5:01 pm

Nonstop0h 55m

Seattle/Tacoma Intl

lun. 12/29

9:27 pm-10:22 pm

Nonstop0h 55m

$288

BellinghamSeattle

BLI - SEA

BLISEA

Bellingham

mié. 1/7

1:03 pm-2:00 pm

Nonstop0h 57m

Seattle/Tacoma Intl

mié. 1/14

11:05 pm-8:19 pm

2 stops45h 14m

$314

BellinghamSeattle

BLI - SEA

BLISEA

Bellingham

mié. 1/7

1:03 pm-2:00 pm

Nonstop0h 57m

Seattle/Tacoma Intl

mar. 1/13

11:05 pm-10:07 pm

3 stops47h 02m

$344

BellinghamSeattle

BLI - SEA

BLISEA

Bellingham

mié. 1/7

1:03 pm-2:00 pm

Nonstop0h 57m

Seattle/Tacoma Intl

mar. 1/13

11:05 pm-1:51 pm

2 stops38h 46m

$378

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

Other information

What is the cheapest month to fly to Seattle?

In general, December is the cheapest month to fly from Bellingham to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $117. If you don’t want to visit Seattle in December, then you should wait until February to fly from Bellingham, when ticket prices are also cheap, with an average price of $147.

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 $483. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Saturday 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 $599.

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

Flying to Seattle from Bellingham in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $452 when looking at flights departing in the afternoon. Flights to Seattle are more costly in the morning, with an average ticket price of $574. 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 December 2025, prices for Bellingham to Seattle flights are approximately 22% cheaper 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	$292
Fastest flight time	0h 49m
Direct flights	Mon, Thu, Fri, Sat and Sun
Airports in Seattle	1 airport

The best one-way flight to Seattle from Bellingham in the past 72 hours is $292. The best round-trip flight deal from Bellingham to Seattle found on momondo in the last 72 hours is $372.

The fastest flight from Bellingham to Seattle takes 0h 49m

Direct flights go from Bellingham to Seattle on Monday, Thursday, Friday, Saturday and Sunday. The only airline offering direct flights is Alaska Airlines.

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 49m.
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?
As of December 2025, there is 1 operator available to choose from 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?
Based on momondo bookings for flights between Bellingham and Seattle, the leading plane model is Airbus A319, making up 16.36% of the total bookings. Other popular models include Boeing 737 MAX 8 with 12.73%, Embraer 175 with 9.09%, and Airbus A320-100/200 with 7.27%.
What is the most popular airline from Bellingham to Seattle?
momondo data reveals that the most frequently booked airline on the route from Bellingham to Seattle is Alaska Airlines, representing 100% of all bookings.

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 Airlines	PriceFrom $127	Free Cancellation	Rating 8.0 11,432 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 28 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.

Tacoma

Leavenworth

SeaTac

Ocean Shores

Renton

Olympia

Lynnwood

Kent

Puyallup

Marysville

Redmond

Tukwila

Cle Elum

Federal Way

Lakewood

Fife

Westport

Kirkland

Centralia

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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sáb. 1/17

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Cheap flights from Bellingham to Seattle from $88

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 1/7. 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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Alaska Airlines flights from Bellingham to Seattle

Our best Alaska Airlines deals on Bellingham to Seattle flight tickets

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Our best American Airlines deals on Bellingham to Seattle flight tickets

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How to get the cheapest flight ticket from Bellingham to Seattle

What is the cheapest month to fly to Seattle?

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

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

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 December 2025, prices for Bellingham to Seattle flights are approximately 22% cheaper when compared to flights at the same time last year.

What is the cheapest airline that flies from Bellingham to Seattle/Tacoma Intl?

Alaska Airlines and Hawaiian Airlines are the most popular carriers operating from Bellingham to Seattle/Tacoma Intl

How many flights depart from Bellingham to Seattle on average per day?

As of December 2025, there are 14 flights per day flying from Bellingham to Seattle. The most common time of day flights depart is 9:00AM, with 36% of flights taking off at noon.

How many flights depart from Bellingham to Seattle on average per week?

As of December 2025, 98 flights take off from Bellingham and land in Seattle each week. The most common flight departure day for this route is Mon, with 14% of weekly flights taking off on this day.

When to book flights from Bellingham to Seattle

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

Fastest flight time

Direct flights

Airports in Seattle

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

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

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?

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

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

Alaska Airlines Flights From Bellingham to Seattle

Traveling to a place near Seattle?

Why use momondo?

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

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

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

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

An easier way to manage your Seattle trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing Washington