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$88+ Cheap flights from Bellingham to Seattle (BLI - SEA)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/28. Fares are subject to change and may not be available on all flights or dates of travel.
BLI — SEA
Nov 15 — Nov 221
Sat 11/15
Sat 11/22
1 adult, Economy
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Cheap flight deals from Bellingham to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Bellingham (BLI) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 16, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$117
(Alaska Airlines)

One-way from

$88
(Trip.com)

Popular in

December

Cheapest in

February

Average price

$277

Good round-trip deal

$358 or less

Good one-way deal

$241 or less
Provider with most accurate pricing for Bellingham-Seattle/Tacoma Intl flight deals.
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Provider most trusted by Cheapflights users for Bellingham-Seattle/Tacoma Intl flights.
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From Bellingham to Seattle/Tacoma Intl
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One-way flight from Bellingham to Seattle/Tacoma Intl
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Highest demand for flights based on searches. 1% potential increase in price ($3 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($11 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Price to beat on a round-trip flight from Bellingham to Seattle/Tacoma Intl.
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Price to beat on a one-way flight from Bellingham to Seattle/Tacoma Intl.
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Find flight deals from Bellingham to Seattle

Cheapest flights from Bellingham to Seattle
Explore the most affordable flight options available from Bellingham to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 16, 2025.

This Alaska Airlines deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/124:04 pmBLI - SEA
Nonstop0h 56mAlaska Airlines
Wed 11/198:30 pmSEA - BLI
Nonstop0h 50mAlaska Airlines
Deal found 10/14$117
This Alaska Airlines deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/105:20 amBLI - SEA
Nonstop0h 59mAlaska Airlines
Wed 12/1011:10 pmSEA - BLI
Nonstop0h 56mAlaska Airlines
Deal found 10/15$157
This Alaska Airlines deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/119:25 amBLI - SEA
Nonstop0h 58mAlaska Airlines
Thu 11/1311:10 amSEA - BLI
Nonstop1h 01mAlaska Airlines
Deal found 10/16$167
This Trip.com deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/64:04 pmBLI - SEA
Nonstop0h 56mHawaiian Airlines
Fri 11/711:10 pmSEA - BLI
Nonstop0h 56mHawaiian Airlines
Deal found 10/16$174
This Alaska Airlines deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/294:04 pmBLI - SEA
Nonstop0h 56mAlaska Airlines
Sat 11/111:10 amSEA - BLI
Nonstop1h 01mAlaska Airlines
Deal found 10/15$218
This Alaska Airlines deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/274:04 pmBLI - SEA
Nonstop0h 56mAlaska Airlines
Wed 11/511:10 amSEA - BLI
Nonstop1h 01mAlaska Airlines
Deal found 10/14$253
This Kiwi.com deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/308:30 amBLI - SEA
1 stop10h 02mMultiple Airlines
Mon 11/311:43 amSEA - BLI
1 stop11h 35mMultiple Airlines
Deal found 10/15$294
This Alaska Airlines deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/248:05 amBLI - SEA
Nonstop1h 01mAlaska Airlines
Fri 10/3111:10 pmSEA - BLI
Nonstop0h 56mAlaska Airlines
Deal found 10/16$303
This Alaska Airlines deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/244:14 pmBLI - SEA
Nonstop0h 57mAlaska Airlines
Sat 10/258:49 pmSEA - BLI
Nonstop0h 55mAlaska Airlines
Deal found 10/14$308
This Kiwi.com deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/34:21 pmBLI - SEA
Nonstop0h 57mMultiple Airlines
Wed 12/1011:10 pmSEA - BLI
2 stops40h 02mMultiple Airlines
Deal found 10/14$313
This Kiwi.com deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/119:25 amBLI - SEA
Nonstop0h 58mMultiple Airlines
Thu 11/1311:10 pmSEA - BLI
2 stops23h 56mMultiple Airlines
Deal found 10/16$333

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated October 16, 2025.
Use the filters below to find and compare flights from Bellingham to Seattle that are best for you.

Fly from

Bellingham

Fly to

Seattle

Route

Depart

Return

Price

BellinghamSeattle

BLI - SEA

BLISEA

Bellingham

Wed 11/12

4:04 pm-5:00 pm

Nonstop0h 56m

Seattle/Tacoma Intl

Wed 11/19

8:30 pm-9:20 pm

Nonstop0h 50m

$117

BellinghamSeattle

BLI - SEA

BLISEA

Bellingham

Wed 12/3

5:20 am-6:19 am

Nonstop0h 59m

Seattle/Tacoma Intl

Wed 12/10

11:27 am-12:24 pm

Nonstop0h 57m

$117

BellinghamSeattle

BLI - SEA

BLISEA

Bellingham

Wed 12/10

5:20 am-6:19 am

Nonstop0h 59m

Seattle/Tacoma Intl

Wed 12/10

11:10 pm-12:06 am

Nonstop0h 56m

$157

BellinghamSeattle

BLI - SEA

BLISEA

Bellingham

Tue 11/11

9:25 am-10:23 am

Nonstop0h 58m

Seattle/Tacoma Intl

Thu 11/13

11:10 am-12:11 pm

Nonstop1h 01m

$167

BellinghamSeattle

BLI - SEA

BLISEA

Bellingham

Thu 11/6

4:04 pm-5:00 pm

Nonstop0h 56m

Seattle/Tacoma Intl

Fri 11/7

11:10 pm-12:06 am

Nonstop0h 56m

$174

BellinghamSeattle

BLI - SEA

BLISEA

Bellingham

Mon 3/2

3:30 pm-4:19 pm

Nonstop0h 49m

Seattle/Tacoma Intl

Fri 3/6

1:45 pm-2:43 pm

Nonstop0h 58m

$177

BellinghamSeattle

BLI - SEA

BLISEA

Bellingham

Wed 11/12

5:15 am-6:20 am

Nonstop1h 05m

Seattle/Tacoma Intl

Wed 11/19

2:29 pm-3:24 pm

Nonstop0h 55m

$218

BellinghamSeattle

BLI - SEA

BLISEA

Bellingham

Thu 10/30

4:04 pm-5:00 pm

Nonstop0h 56m

Seattle/Tacoma Intl

Mon 11/3

11:10 pm-12:06 am

Nonstop0h 56m

$218

BellinghamSeattle

BLI - SEA

BLISEA

Bellingham

Tue 11/4

12:51 pm-1:47 pm

Nonstop0h 56m

Seattle/Tacoma Intl

Thu 11/6

11:10 am-12:11 pm

Nonstop1h 01m

$218

BellinghamSeattle

BLI - SEA

BLISEA

Bellingham

Mon 10/27

4:04 pm-5:00 pm

Nonstop0h 56m

Seattle/Tacoma Intl

Wed 11/5

11:10 am-12:11 pm

Nonstop1h 01m

$253

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/14

Showing 1-10 of 20 results
1
2

Compare providers for flights from Bellingham to Seattle

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Bellingham to Seattle in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Bellingham-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Bellingham-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Bellingham-Seattle flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Bellingham-Seattle flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Bellingham-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Bellingham to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Bellingham with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Bellingham to Seattle

What is the cheapest month to book a flight from Bellingham to Seattle?

Currently, October is the cheapest month in which you can book a flight from Bellingham to Seattle (average of $133). Flying from Bellingham to Seattle in December is currently the most expensive (average of $338). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from BLI to SEA?

Find hourly flight availability from Bellingham to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 16, 2025.

When flying from Bellingham to Seattle, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost to fly round-trip from Bellingham to Seattle?

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated October 16, 2025.
Read reviews from past customers who have flown Alaska Airlines from Bellingham to Seattle. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,100 reviews

Crew

8.5

Entertainment

7.0

Overall

8.0

Comfort

7.8

Food

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Alaska Airlines
8.0
Very good
11,100 reviews
Alaska Airlines
8.0
Very good
11,100 reviews

Crew

8.5

Entertainment

7.0

Overall

8.0

Comfort

7.8

Food

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why

Related info for your journey

Find useful and relevant information for your journey from Bellingham to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from Bellingham to Seattle?

    You will need to book a flight from Bellingham to Seattle/Tacoma Intl if you want to fly from Bellingham to Seattle. At least 1 airline has flights from Bellingham (BLI) to Seattle/Tacoma Intl (SEA) on a regular basis. There are 13 flights to Seattle from the Bellingham airport per day. If you manage to book one that is nonstop, then you can expect the flight time from BLI to SEA to be around 0h 49m.

  • How popular is this Bellingham to Seattle flight route?

    The Bellingham to Seattle/Tacoma Intl flight path was viewed by 22 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Bellingham to Seattle?

    There are many flights that can get you from Bellingham to Seattle in 56m. Fly via Alaska Airlines or Hawaiian Airlines to get the fastest option. The distance between Bellingham and Seattle is about 93 mi. All flights are typically nonstop.

  • What is the cheapest airline to fly from Bellingham to Seattle round-trip?

    Our cheapest airline available from Bellingham to Seattle is Alaska Airlines. Our recent data shows that you can find tickets from as low as $147 on this airline. You may be able to fly from Bellingham to Seattle for 38% less than the average price by searching for this airline.

  • What are the most reliable airlines from Bellingham to Seattle?

    The top 3 most reliable airlines when flying from Bellingham to Seattle are Finnair (100%), American Airlines (94%) and Japan Airlines (93%).

  • What are the cheapest flights from Bellingham to Seattle?

    Looking at all options, your cheapest flight can be booked for $174. While the most popular route (Bellingham - Seattle/Tacoma Intl) can be booked for $117 on average, our data indicates $437 when flying from Bellingham to Seattle.

  • Can I find deals for flights from Bellingham to Seattle that include hotel bookings?

    Yes. In addition to deals on Bellingham to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Bellingham to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Bellingham to Seattle.

  • Can I find deals for business class flights from Bellingham to Seattle?

    Yes. Cheapflights offers flight deals from Bellingham to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Bellingham to Seattle?

    Currently, October is the cheapest month in which you can book a flight from Bellingham to Seattle (average of $133). Flying from Bellingham to Seattle in December is currently the most expensive (average of $338). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
SeaTac
Tukwila
Tacoma
Lakewood
Ocean Shores
Lynnwood
Edmonds
Leavenworth
Renton
Lacey
Olympia
Kent
Federal Way
Cle Elum
Marysville
Puyallup
Chehalis
Kirkland
Issaquah
Aberdeen

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Top airline flying from Bellingham to Seattle

Discover the top airline that operate flights from Bellingham to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated October 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$147Average$258FlexibilityNo cancel feeOn-time75%

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