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Cheap flights from Bellingham to Seattle from C$ 123

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 26/1. Fares are subject to change and may not be available on all flights or dates of travel.
BLI — SEA
11 Jan — 18 Jan1
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 12 December 2025.

Fri 26/125:20 a.m.BLI - SEA
Nonstop0h 56mAlaska Airlines
Tue 30/1211:20 p.m.SEA - BLI
Nonstop0h 56mAlaska Airlines
Deal found 11/12C$ 328
Thu 25/1212:56 p.m.BLI - SEA
Nonstop0h 53mAlaska Airlines
Mon 29/129:27 p.m.SEA - BLI
Nonstop0h 55mAlaska Airlines
Deal found 10/12C$ 397
Fri 19/1212:56 p.m.BLI - SEA
Nonstop0h 53mAlaska Airlines
Fri 26/1211:20 p.m.SEA - BLI
Nonstop0h 56mAlaska Airlines
Deal found 10/12C$ 452
Sat 20/124:06 p.m.BLI - SEA
Nonstop0h 55mAlaska Airlines
Sun 21/1211:20 p.m.SEA - BLI
Nonstop0h 56mAlaska Airlines
Deal found 9/12C$ 466
Sat 13/125:20 a.m.BLI - SEA
Nonstop0h 59mAlaska Airlines
Fri 19/129:27 p.m.SEA - BLI
Nonstop0h 55mAlaska Airlines
Deal found 10/12C$ 576
Thu 11/129:15 a.m.BLI - SEA
Nonstop1h 06mAlaska Airlines
Thu 18/1211:20 p.m.SEA - BLI
Nonstop0h 56mAlaska Airlines
Deal found 10/12C$ 604
Sun 14/129:15 a.m.BLI - SEA
Nonstop1h 06mAlaska Airlines
Mon 15/129:31 p.m.SEA - BLI
Nonstop1h 01mAlaska Airlines
Deal found 10/12C$ 632
Thu 11/124:21 p.m.BLI - SEA
Nonstop0h 57mAlaska Airlines
Sun 14/122:44 p.m.SEA - BLI
Nonstop0h 57mAlaska Airlines
Deal found 10/12C$ 659
Fri 12/124:21 p.m.BLI - SEA
Nonstop0h 57mAlaska Airlines
Tue 16/129:31 p.m.SEA - BLI
Nonstop1h 01mAlaska Airlines
Deal found 11/12C$ 687

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 12 December 2025.

Round-trip from

C$ 190

One-way from

C$ 123

Popular in

July

Cheapest in

December

Average price

C$ 161

Good round-trip deal

C$ 418 or less
Alaska Airlines
  • Alaska Airlines
  • 26/2-1/3
  • Nonstop
  • 2h 02m total
  • Bellingham to Seattle
Search Deals
Alaska Airlines
  • Alaska Airlines
  • 26/1
  • Nonstop
  • 0h 57m total
  • Bellingham to Seattle
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (C$ 27 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (C$ 17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip 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 12 December 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

Thu 26/2

4:19 p.m.-5:20 p.m.

Nonstop1h 01m

Seattle/Tacoma Intl

Sun 1/3

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

Nonstop1h 01m

C$ 190

BellinghamSeattle

BLI - SEA

BLISEA

Bellingham

Fri 8/5

5:20 a.m.-6:09 a.m.

Nonstop0h 49m

Seattle/Tacoma Intl

Mon 11/5

4:35 p.m.-5:25 p.m.

Nonstop0h 50m

C$ 190

BellinghamSeattle

BLI - SEA

BLISEA

Bellingham

Thu 19/2

5:15 a.m.-6:16 a.m.

Nonstop1h 01m

Seattle/Tacoma Intl

Wed 8/4

11:10 p.m.-12:01 a.m.

Nonstop0h 51m

C$ 190

BellinghamSeattle

BLI - SEA

BLISEA

Bellingham

Thu 19/3

6:25 p.m.-7:17 p.m.

Nonstop0h 52m

Seattle/Tacoma Intl

Wed 8/4

11:10 p.m.-12:01 a.m.

Nonstop0h 51m

C$ 190

BellinghamSeattle

BLI - SEA

BLISEA

Bellingham

Sat 17/1

1:03 p.m.-2:00 p.m.

Nonstop0h 57m

Seattle/Tacoma Intl

Sun 25/1

11:10 p.m.-12:06 a.m.

Nonstop0h 56m

C$ 204

BellinghamSeattle

BLI - SEA

BLISEA

Bellingham

Wed 7/1

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

Nonstop1h 05m

Seattle/Tacoma Intl

Wed 14/1

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

Nonstop0h 58m

C$ 204

BellinghamSeattle

BLI - SEA

BLISEA

Bellingham

Thu 25/12

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

Nonstop0h 53m

Seattle/Tacoma Intl

Mon 29/12

9:27 p.m.-10:22 p.m.

Nonstop0h 55m

C$ 397

BellinghamSeattle

BLI - SEA

BLISEA

Bellingham

Fri 26/12

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

Nonstop0h 53m

Seattle/Tacoma Intl

Sun 28/12

11:20 p.m.-12:16 a.m.

Nonstop0h 56m

C$ 397

BellinghamSeattle

BLI - SEA

BLISEA

Bellingham

Sat 3/1

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

Nonstop0h 53m

Seattle/Tacoma Intl

Sat 3/1

9:27 p.m.-10:22 p.m.

Nonstop0h 55m

C$ 452

BellinghamSeattle

BLI - SEA

BLISEA

Bellingham

Mon 26/1

1:03 p.m.-2:00 p.m.

Nonstop0h 57m

C$ 123

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/12

Showing 1-10 of 19 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, December is the cheapest month in which you can book a flight from Bellingham to Seattle (average of C$ 161). Flying from Bellingham to Seattle in July is currently the most expensive (average of C$ 433). 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 12 December 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, 353 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 01m. Alaska Airlines provides one of the quickest options available for as low as C$ 190. 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 Horizon Air (92%), American Airlines (87%) or Japan Airlines (84%) 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$ 365. While the most popular route (Bellingham - Seattle/Tacoma Intl) can be booked for C$ 283 on average, our data indicates C$ 673 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, December is the cheapest month in which you can book a flight from Bellingham to Seattle (average of C$ 161). Flying from Bellingham to Seattle in July is currently the most expensive (average of C$ 433). 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
Mukilteo
Tacoma
Bothell
Cashmere
Olympia
Renton
Marysville
Lynnwood

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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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