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Cheap flights from Bellingham to Seattle from C$ 124

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 19/12. Fares are subject to change and may not be available on all flights or dates of travel.
BLI — SEA
27 Nov — 4 Dec1
1 adult
1 adult, Economy, 0 bags

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 28 October 2025.

Round-trip from

C$ 164

One-way from

C$ 124

Popular in

December

Cheapest in

February

Average price

C$ 387

Good round-trip deal

C$ 489 or less

Good one-way deal

C$ 201 or less
Alaska Airlines
  • Alaska Airlines
  • 27/1-31/1
  • Nonstop
  • 2h 03m total
  • Bellingham to Seattle
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Alaska Airlines
  • Alaska Airlines
  • 19/12
  • Nonstop
  • 0h 53m total
  • Bellingham to Seattle
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High demand for flights, 1% potential price rise
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Cheapest flight prices on average. 4% potential price decrease (C$ 20 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

Enter your travel dates to find the best prices.

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 28 October 2025.

Tue 11/1112:51 p.m.BLI - SEA
Nonstop0h 56mAlaska Airlines
Sat 15/118:30 p.m.SEA - BLI
Nonstop0h 50mAlaska Airlines
Deal found 26/10C$ 305
Sun 9/114:04 p.m.BLI - SEA
Nonstop0h 56mAlaska Airlines
Wed 12/1111:10 p.m.SEA - BLI
Nonstop0h 56mAlaska Airlines
Deal found 26/10C$ 361
Wed 26/115:12 p.m.BLI - SEA
Nonstop0h 59mAlaska Airlines
Sun 30/1111:15 p.m.SEA - BLI
Nonstop0h 55mAlaska Airlines
Deal found 28/10C$ 487
Sat 1/119:25 a.m.BLI - SEA
Nonstop0h 58mAlaska Airlines
Fri 7/1111:10 a.m.SEA - BLI
Nonstop1h 01mAlaska Airlines
Deal found 28/10C$ 585

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 629,999 searches. Data last updated 28 October 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

Tue 27/1

5:15 a.m.-6:20 a.m.

Nonstop1h 05m

Seattle/Tacoma Intl

Sat 31/1

11:25 a.m.-12:23 p.m.

Nonstop0h 58m

C$ 164

BellinghamSeattle

BLI - SEA

BLISEA

Bellingham

Mon 26/1

5:15 a.m.-6:20 a.m.

Nonstop1h 05m

Seattle/Tacoma Intl

Sat 31/1

8:22 p.m.-9:20 p.m.

Nonstop0h 58m

C$ 178

BellinghamSeattle

BLI - SEA

BLISEA

Bellingham

Mon 23/2

3:30 p.m.-4:19 p.m.

Nonstop0h 49m

Seattle/Tacoma Intl

Wed 11/3

11:20 a.m.-12:18 p.m.

Nonstop0h 58m

C$ 193

BellinghamSeattle

BLI - SEA

BLISEA

Bellingham

Mon 2/3

12:58 p.m.-1:47 p.m.

Nonstop0h 49m

Seattle/Tacoma Intl

Fri 6/3

11:20 a.m.-12:18 p.m.

Nonstop0h 58m

C$ 248

BellinghamSeattle

BLI - SEA

BLISEA

Bellingham

Wed 12/11

5:15 a.m.-6:20 a.m.

Nonstop1h 05m

Seattle/Tacoma Intl

Sun 16/11

11:10 a.m.-12:11 p.m.

Nonstop1h 01m

C$ 305

BellinghamSeattle

BLI - SEA

BLISEA

Bellingham

Tue 11/11

12:51 p.m.-1:47 p.m.

Nonstop0h 56m

Seattle/Tacoma Intl

Sat 15/11

8:30 p.m.-9:20 p.m.

Nonstop0h 50m

C$ 305

BellinghamSeattle

BLI - SEA

BLISEA

Bellingham

Tue 11/11

4:04 p.m.-5:00 p.m.

Nonstop0h 56m

Seattle/Tacoma Intl

Thu 13/11

11:10 a.m.-12:11 p.m.

Nonstop1h 01m

C$ 361

BellinghamSeattle

BLI - SEA

BLISEA

Bellingham

Fri 19/12

12:56 p.m.-1:49 p.m.

Nonstop0h 53m

C$ 124

BellinghamSeattle

BLI - SEA

BLISEA

Bellingham

Sun 9/11

12:51 p.m.-1:47 p.m.

Nonstop0h 56m

C$ 250

BellinghamSeattle

BLI - SEA

BLISEA

Bellingham

Sun 2/11

4:04 p.m.-5:00 p.m.

Nonstop0h 56m

C$ 306

Flights are sorted by cheapest round-trip flights first.

Deals found on 28/10

Showing 1-10 of 11 results
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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, November is the cheapest month in which you can book a flight from Bellingham to Seattle (average of C$ 183). Flying from Bellingham to Seattle in July is currently the most expensive (average of C$ 439). 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 28 October 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.

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.

  • How popular is this Bellingham to Seattle flight route?

    Within the past month, 430 users have taken a look at flights from Bellingham to Seattle/Tacoma Intl.

  • How long is the flight from Bellingham to Seattle?

    A quick flight from Bellingham to Seattle can take about 1h 05m. Alaska Airlines provides one of the quickest options available for as low as C$ 164. The distance from Bellingham to Seattle is about 150 km. Generally, flights for this route are direct.

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

    Consider Finnair (100%), American Airlines (94%) or Japan Airlines (93%) when booking your flight. These represent the most reliable airlines when flying from Bellingham to Seattle.

  • What are the cheapest flights from Bellingham to Seattle?

    Looking at all options, your cheapest flight can be booked for C$ 108. While the most popular route (Bellingham - Seattle/Tacoma Intl) can be booked for C$ 294 on average, our data indicates C$ 732 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, November is the cheapest month in which you can book a flight from Bellingham to Seattle (average of C$ 183). Flying from Bellingham to Seattle in July is currently the most expensive (average of C$ 439). 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

Travelling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Leavenworth
SeaTac
Tukwila
Tacoma
Mukilteo
Bothell
Cashmere
Renton
Olympia
Marysville
Lynnwood

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Can Cheapflights find flights from Bellingham to Seattle with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Bellingham to Seattle, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Bellingham to Seattle become cheaper?

Yes, Cheapflights offers price alerts on Bellingham to Seattle flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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