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Cheap flights from Seattle to Bellingham

SEA — BLI
11 Oct — 18 Oct1
1 adult
1 adult, Economy

Cheap flight deals from Seattle to Bellingham

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Bellingham (BLI). 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 11 September 2025.

Popular in

May

Cheapest in

January

Average price

C$ 240

Good one-way deal

C$ 165 or less
Highest demand for flights based on searches. 16% potential increase in price (C$ 83 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease (C$ 22 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a one-way flight from Seattle/Tacoma Intl to Bellingham.
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Best time to book a flight from Seattle to Bellingham

Have a flexible travel schedule? Discover the best time to fly to Bellingham from Seattle 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 Seattle to Bellingham

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

Find hourly flight availability from Seattle to Bellingham. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 11 September 2025.

When flying from Seattle to Bellingham, 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 Seattle to Bellingham. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    Before booking your flight to Bellingham from Seattle, check out the most reliable airlines to get you to your destination on time: Finnair (94%), Japan Airlines (89%), Qatar Airways( 87%).

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

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

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

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

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

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

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Alternative routes for Seattle to Bellingham

See prices for flight routes from nearby airports that may be better suited for you.
Bellingham to Seattle flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

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

Deals for Seattle to Bellingham flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Seattle to Bellingham.

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

Certainly. Search results for flights to Bellingham from Seattle shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Bellingham from Seattle today and book when prices fit your budget.

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