Cheap Flights from Bellingham to Seattle

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Find the cheapest month to fly from Bellingham to Seattle

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

Direct flights from Bellingham to Seattle

Alternative Bellingham to Seattle routes

Looking for the cheapest, fastest or easiest route from Bellingham to Seattle? You could fly into the following airports instead.

Bellingham to Seattle: Flight information

The things to know before you go.
Cheapest flight foundR 1,855
Cheapest month to flyMay
Average flight time54 mins
Most popular airlineSkyWest Airlines
Average flights per week138

Finding cheap flights from Bellingham to Seattle: Frequently asked questions

There are 4 airports in Seattle: Seattle Lake Union SPB, Seattle Boeing Fld, Seattle / Tacoma International, and Paine Field.
The best price we found for a return flight from Bellingham to Seattle is R 2,972. 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.
54 minutes is the average flight time from Bellingham to Seattle.
SkyWest Airlines, Alaska Airlines and Hawaiian Airlines fly direct from Bellingham to Seattle.
As of March 2025, there are 138 flights per week flying from Bellingham to Seattle.
The cheapest month to fly from Bellingham to Seattle is usually March 2025.
If you're flying from Bellingham Airport, the cheapest airport near Seattle is Seattle / Tacoma International – which is 19.5 km away from the centre of Seattle. We've found flights into this airport from R 2,972.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Bellingham Airport to Seattle on Wednesday, 16 April 2025.
Yes – the average flight time is 54 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 Seattle 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 Seattle is around 40 days in advance, so don’t leave your flight to the last minute.
In March, the average temperature is usually around 6°C. August is typically the warmest month in Seattle, when it usually averages around 23°C. You can expect the least rain in July. The coldest month is December, with temperatures averaging 0°C. The rainiest month is November.
Currently, Alaska Airlines offers the cheapest flight tickets to Seattle.

Travelling from Bellingham International Airport (BLI) to Seattle: what you need to know

  • Expect to be in the air for 52 minutes. That's the average duration of a direct flight from Bellingham International Airport to Seattle.

  • Seattle's timezone is UTC-7, which is the same as Bellingham (the location of Bellingham International Airport).

  • The most popular route is from Bellingham International Airport (BLI) to Seattle-Tacoma International Airport (SEA). Take your pick of 18 weekly services between these two airports. If you'd like to head off as soon as possible, the earliest flight from BLI to SEA is the 05:00 Alaska Airlines service. If you'd rather fly out later on, the final departure is at 18:56 with Alaska Airlines.

  • For a smooth journey, arrive at the airport two hours ahead of international flights and one hour before domestic departures. This ensures you have enough time to catch your flight from BLI to Seattle.

  • If you're flying during a peak month like July, arrive at the terminal even earlier. It's wise to arrive up to four hours before an international flight and two hours ahead of a domestic departure. Security lines will be longer during holiday periods like Christmas, New Year and spring break.

  • You can reserve a direct flight from Bellingham International Airport to Seattle. Start your trip at BLI and touch down at Seattle-Tacoma International Airport (SEA).

  • Be on the lookout for deals with Alaska Airlines. This airline operates direct flights from Bellingham International Airport to Seattle.

  • You won't need a visa or passport to fly within United States. You will need a valid identity document though, such as a driver's licence or an ID card. Add them to your packing checklist once you've booked your cheap tickets from Bellingham International Airport to Seattle.

  • Travelling from central Bellingham to BLI takes approximately 24 minutes on public transport. If you ride-share, drive or get a cab, you'll cover the 10 kilometres in 13 minutes or so, depending on traffic.

  • After a leisurely start to your trip? Stay near BLI. Whether you're catching an early flight from Bellingham International Airport to Seattle or want to avoid feeling rushed, these hotels are the answer:

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

  • R 1,855 is the lowest price we've found for a one-way ticket from Bellingham International Airport to Seattle. For a return flight on this route, the best price is R 2,972. Depending on how early you book and the availability, these fares could change.

  • To snag cheap tickets from BLI to Seattle, book your journey 10 months ahead of your departure date.

  • Organise your trip for June. That's the cheapest month for tickets from Bellingham International Airport to Seattle. If you're flexible with your dates, use the 'Whole month' tool to see the cheapest price across each month.

  • Create a Price Alert for cheap tickets from BLI to Seattle. You don't need to check every day to see if prices have fallen. We'll update you when there's a change in price.

  • Make the most of the filters to find your ideal trip. To see the 'Fastest,' 'Cheapest' or 'Best' flights from Bellingham International Airport to Seattle, use the 'Sort by' tool. You can also filter results by arrival and departure times, airline, and number of stops.

Airports in Seattle

Seattle-Tacoma International Airport (SEA)

  • Seattle-Tacoma International Airport (SEA) is around 23 kilometres from central Seattle. With a cab or in your own car rental, the drive is around 18 minutes.

  • It takes around 54 minutes if you're using public transport.

  • If you have a late flight from Bellingham International Airport to Seattle, few things beat the convenience of staying close to the terminal. Grab your bags from the carousel and then be showered and relaxing not long after at one of these hotels near SEA:

Lake Union Sea Plane Base Airport (LKE)

Best time to go to Seattle

  • July is the busiest month for flights from Bellingham International Airport to Seattle. To escape the crowds, head to Seattle in May when things are quieter.

  • Book your flight from Bellingham International Airport to Seattle for August to visit the city during its warmest month. Expect temperatures to range from 12ºC to 28ºC.

  • If you like travelling in cooler conditions, search for a cheap flight from BLI to Seattle in February when temperatures average between -1ºC and 11ºC.

More about Seattle

  • Start your Seattle trip right by choosing the ideal place to stay. Once you've booked your flight from Bellingham International Airport to Seattle, explore our selection of accommodation options including:

  • There are so many things to do and see in this city it can be tricky to know where to begin. Gas Works - Lake View Point, Queen Anne Bowl Playfield and LMN Architects are leading attractions which should be on any good Seattle itinerary.

Complete your Seattle trip with a car rental

  • Finding you a cheap flight from Bellingham International Airport to Seattle isn't the only trick up our sleeve. Check out our car rentals in Seattle and travel at your own pace. We find deals from trusted car rental providers and put them all in one place. You can instantly compare rates and then book with no fees.

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