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Cheap flights from Bellingham to Seattle from C$ 139

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 29/3. Fares are subject to change and may not be available on all flights or dates of travel.
BLI — SEA
27 Feb — 6 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap 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 January 2026.

Sun 31/56:00 a.m.
BLI
-
SEA
Nonstop0h 51m
Alaska Airlines
Sat 20/612:10 p.m.
SEA
-
BLI
Nonstop1h 04m
Alaska Airlines
Deal found 26/1C$ 228
Sat 30/58:00 a.m.
BLI
-
SEA
1 stop3h 53m
Alaska Airlines
Tue 16/611:11 p.m.
SEA
-
BLI
Nonstop0h 58m
Alaska Airlines
Deal found 27/1C$ 269
Mon 9/311:53 a.m.
BLI
-
SEA
Nonstop1h 01m
Alaska Airlines
Fri 13/310:12 a.m.
SEA
-
BLI
Nonstop1h 01m
Alaska Airlines
Deal found 25/1C$ 283
Wed 11/33:55 p.m.
BLI
-
SEA
Nonstop1h 01m
Alaska Airlines
Mon 6/411:30 a.m.
SEA
-
BLI
1 stop11h 20m
Alaska Airlines
Deal found 28/1C$ 294
Mon 16/211:53 a.m.
BLI
-
SEA
Nonstop1h 01m
Alaska Airlines
Mon 23/210:12 a.m.
SEA
-
BLI
Nonstop1h 01m
Alaska Airlines
Deal found 26/1C$ 331
Tue 10/29:15 a.m.
BLI
-
SEA
Nonstop1h 16m
Alaska Airlines
Sat 14/23:28 p.m.
SEA
-
BLI
Nonstop0h 56m
Alaska Airlines
Deal found 25/1C$ 365
Sun 8/25:15 a.m.
BLI
-
SEA
Nonstop1h 05m
Alaska Airlines
Thu 12/210:12 a.m.
SEA
-
BLI
Nonstop1h 01m
Alaska Airlines
Deal found 25/1C$ 420
Thu 12/211:53 a.m.
BLI
-
SEA
Nonstop1h 01m
Alaska Airlines
Mon 16/210:12 a.m.
SEA
-
BLI
Nonstop1h 01m
Alaska Airlines
Deal found 28/1C$ 545

Find 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 January 2026.

Round-trip from

C$ 228

One-way from

C$ 139

Popular in

December

Cheapest in

February

Average price

C$ 265

Good round-trip deal

C$ 424 or less

Good one-way deal

C$ 237 or less
Alaska Airlines
  • Alaska Airlines
  • 31/5-20/6
  • Nonstop
  • 1h 55m total
  • Bellingham to Seattle
Search Deals
Alaska Airlines
  • Alaska Airlines
  • 29/3
  • Nonstop
  • 0h 54m total
  • Bellingham to Seattle
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (C$ 62 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 10% potential price decrease (C$ 46 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals
Price to beat on a round-trip flight from Bellingham to Seattle/Tacoma Intl.
Search Deals
Price to beat on a one-way flight from Bellingham to Seattle/Tacoma Intl.
Search Deals

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 January 2026.
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

Sun 31/5

6:00 a.m.-6:51 a.m.

Nonstop0h 51m

Seattle/Tacoma Intl

Sat 20/6

12:10 p.m.-1:14 p.m.

Nonstop1h 04m

C$ 228

BellinghamSeattle

BLI - SEA

BLISEA

Bellingham

Sat 30/5

8:00 a.m.-11:53 a.m.

1 stop3h 53m

Seattle/Tacoma Intl

Tue 16/6

11:11 p.m.-12:09 a.m.

Nonstop0h 58m

C$ 269

BellinghamSeattle

BLI - SEA

BLISEA

Bellingham

Mon 9/3

11:53 a.m.-12:54 p.m.

Nonstop1h 01m

Seattle/Tacoma Intl

Fri 13/3

10:12 a.m.-11:13 a.m.

Nonstop1h 01m

C$ 283

BellinghamSeattle

BLI - SEA

BLISEA

Bellingham

Wed 11/3

3:55 p.m.-4:56 p.m.

Nonstop1h 01m

Seattle/Tacoma Intl

Mon 6/4

11:30 a.m.-10:50 p.m.

1 stop11h 20m

C$ 294

BellinghamSeattle

BLI - SEA

BLISEA

Bellingham

Mon 16/2

11:53 a.m.-12:54 p.m.

Nonstop1h 01m

Seattle/Tacoma Intl

Mon 23/2

10:12 a.m.-11:13 a.m.

Nonstop1h 01m

C$ 331

BellinghamSeattle

BLI - SEA

BLISEA

Bellingham

Tue 10/2

9:15 a.m.-10:31 a.m.

Nonstop1h 16m

Seattle/Tacoma Intl

Sat 14/2

3:28 p.m.-4:24 p.m.

Nonstop0h 56m

C$ 365

BellinghamSeattle

BLI - SEA

BLISEA

Bellingham

Sun 29/3

12:56 p.m.-1:50 p.m.

Nonstop0h 54m

C$ 139

BellinghamSeattle

BLI - SEA

BLISEA

Bellingham

Sat 7/3

11:53 a.m.-12:54 p.m.

Nonstop1h 01m

C$ 139

BellinghamSeattle

BLI - SEA

BLISEA

Bellingham

Sun 8/3

11:53 a.m.-12:54 p.m.

Nonstop1h 01m

C$ 142

BellinghamSeattle

BLI - SEA

BLISEA

Bellingham

Fri 6/3

11:53 a.m.-12:54 p.m.

Nonstop1h 01m

C$ 142

Flights are sorted by cheapest round-trip flights first.

Deals found on 27/1

Showing 1-10 of 14 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$ 178). Flying from Bellingham to Seattle in July is currently the most expensive (average of C$ 429). 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 January 2026.

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, 219 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 51m. Alaska Airlines provides one of the quickest options available for as low as C$ 228. 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 American Airlines (82%), Japan Airlines (80%) or Qatar Airways (78%) 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$ 171. While the most popular route (Bellingham - Seattle/Tacoma Intl) can be booked for C$ 256 on average, our data indicates C$ 664 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$ 178). Flying from Bellingham to Seattle in July is currently the most expensive (average of C$ 429). 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
Mukilteo
Tacoma
Kent
Tukwila
Bothell
Cashmere
Olympia
Renton
Lynnwood
Marysville
Kirkland

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How does Cheapflights help users find flights from Bellingham to Seattle?

When you search for this flight from Bellingham to Seattle, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Bellingham to Seattle?

Millions of users choose and trust Cheapflights to book the best flight deals from Bellingham to Seattle for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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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