Cheap Flights from Seattle (SEAA) to Bellingham (BLI)

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Flight deals from Seattle to Bellingham Airport

Looking for a cheap last-minute deal or the best return flight from Seattle to Bellingham Airport? If you want to travel next month, return fares start from £255. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Seattle to Bellingham

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Seattle to Bellingham flights are currently cheapest in April.

Direct flights from Seattle to Bellingham

Seattle to Bellingham: Flight information

The things to know before you go.
Cheapest flight found£255
Cheapest month to flyApril
Average flight time57 mins
Most popular airlineQatar Airways
Average flights per week84

Finding cheap flights from Seattle to Bellingham: Frequently asked questions

The best price we found for a return flight from Seattle to Bellingham is £255. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
57 minutes is the average flight time from Seattle to Bellingham.
Qatar Airways, SkyWest Airlines and Alaska Airlines fly direct from Seattle to Bellingham.
As of March 2026, there are 84 flights per week flying from Seattle to Bellingham.
The cheapest month to fly from Seattle to Bellingham is usually April.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Seattle to Bellingham Airport on Friday, 3 April 2026.
Yes – the average flight time is 57 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Bellingham but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Bellingham is around 40 days in advance, so don’t leave your flight to the last minute.
The cheapest airline that flies to Bellingham is Alaska Airlines .

Flying from Seattle to Bellingham International Airport (BLI): What you need to know

  • Your route to adventure begins at Seattle's main airport, Seattle-Tacoma International Airport (SEA). Check out the options for reserving a flight from Seattle to Bellingham International Airport (BLI) departing from this terminal.

  • The average duration of a direct Seattle to Bellingham International Airport flight is 55 minutes.

  • Bellingham's timezone is UTC-8, which is the same as Seattle. Bellingham International Airport is located in Bellingham.

  • Seattle-Tacoma International Airport (SEA) to Bellingham International Airport (BLI) is the most popular route. There are 23 direct departures a week to pick from. If you prefer to head out later, take the last flight with Alaska Airlines at 11:08pm. Go for the first SEA to BLI departure with Alaska Airlines at 11:20am if you'd rather not wait around.

  • To ensure you get on your flight from Seattle to BLI, allow plenty of time to navigate the airport and find your gate. Arriving two hours before international departures and one hour before domestic flights is the general rule.

  • With more travellers during busy months like July, be at your terminal even earlier. Two hours for domestic flights and up to four for international journeys will allow for extra wait times. Remember things also get busy during major holidays like Christmas.

Airports in Seattle

Seattle-Tacoma International Airport (SEA)

  • Seattle-Tacoma International Airport (SEA) makes it easy to travel directly to your destination. Nonstop flights from Seattle to Bellingham International Airport (BLI) depart from this terminal.

  • You can lock in a direct flight from Seattle to Bellingham International Airport with Alaska Airlines. This leading airline offers services from SEA.

  • Most passengers prefer to book seats with Alaska Airlines between SEA and BLI.

  • With 79.89% of services arriving as scheduled, Alaska Airlines is the most punctual carrier on this route.

  • Located around 23 kms (14 miles) from central Seattle, SEA can be reached in about 25 minutes by car, depending on traffic. The journey by public transport will take roughly 35 minutes.

  • Want a stress-free start to your journey? Stay near Seattle-Tacoma International Airport. Whether you've booked an early flight from Seattle to Bellingham International Airport or prefer not to feel hurried, these hotels have you covered:

  • Seattle-Tacoma International Airport earns top marks for on-time performance. 80% of flights that depart SEA arrive at their destination without delay.

Seattle Paine Field International Airport (PAE)

  • On public transport, you can travel from central Seattle to PAE in around 1 hour 30 minutes. The airport is roughly 40 kms (25 miles) away, and making the journey by car takes approximately 40 minutes.

  • Got an early start? Think about staying at one of these accommodation options near Seattle Paine Field International Airport the day before your Seattle to BLI flight:

  • The majority of flights that leave Seattle Paine Field International Airport get to their destination within the expected time frame. It achieves a consistent on-time performance rate of 80%.

About Bellingham International Airport (BLI)

Getting from Bellingham International Airport (BLI) to central Bellingham

  • Central Bellingham is around 10 kms (6 miles) from Bellingham International Airport and takes about 15 minutes to reach by car. See what your options are for heading into the city, whether that's with a car hire, taxi or ride-share.

  • When travelling on public transport, expect a journey time of around 30 minutes.

How to find the cheapest flights from Seattle to Bellingham International Airport (BLI)

  • At the moment, £104 is the best price we've found for a one-way ticket from Seattle to Bellingham International Airport. The cheapest price for a return flight is £255. Remember fares may change due to demand at the time of booking.

  • To pick up cheap flights from Seattle to BLI, book in advance. Airlines typically offer their most competitively priced fares when tickets first go on sale.

  • Affordable Seattle to Bellingham International Airport tickets are easier to find when you have flexibility in your schedule. Use the 'Whole month' search function to compare fares across each month and then choose the cheapest day.

  • Finding a cheap plane ticket from Seattle to BLI couldn't be easier with Price Alerts. All you need to do is create one of these automatic alerts and we'll let you know as soon as there's a better deal.

  • Filters make it easier to scoop up a deal on your flight from Seattle to Bellingham International Airport. Choose the departure times, airlines and number of stops that look good to you. Then sort the results by 'Cheapest' to find the lowest price right away.

The best time to fly from Seattle to Bellingham International Airport (BLI)

  • April is the busiest month for flights from Seattle to Bellingham International Airport (BLI). Plan your visit to Bellingham in November if you prefer a quieter experience.

  • Book a Seattle to BLI plane ticket departing in August if you're eager to experience the city during its warmest month. You can expect temperatures in Bellingham to range from 12ºC to 25ºC.

  • Look for cheap tickets from Seattle to Bellingham International Airport in February if you'd rather travel when it's cooler. Temperatures are at their lowest then, ranging between -2ºC and 10ºC.

More about Bellingham

Explore more of the United States

  • Seattle is just one of the many cities in the United States waiting to be discovered after you've seen Bellingham. Around 137 kms (85 miles) away to the south, top sights here include Space Needle, Pike Place Market and Seattle Skyline.

  • Tacoma is another sought-after destination in the United States and is around 177 kms (110 miles) south of Bellingham. No journey is complete without seeing LeMay - America's Car Museum, Chihuly Bridge of Glass and Point Defiance Park.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.