$59 Cheap Alaska Airlines flights Bellingham (BLI) to Seattle (SEA)

Use the “Price (lowest to highest)” filter on Expedia to search for cheap Alaska Airlines round-trip flights from $138 from BLI to SEA. Affordable one-way options from $59 are available as well.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines flights to Seattle tend to be cheaper in the off-peak months of January and February. Whether you’re searching for a one-way or round-trip ticket, you could find a better deal then.

Look for cheap Alaska Airlines flights from Bellingham Intl. Airport (BLI) to Seattle - Tacoma Intl. Airport (SEA) one to three months before your day of departure. Travelers who book domestic flights 34 to 86 days in advance can save 25% compared to those who book just 6 to 12 days ahead. Regardless of fare type and journey, the best day to book a domestic flight is generally Sunday and the most expensive day is typically Monday. Passengers who book on a Sunday can save 6% on average compared to those who book their travel on a Monday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC’s global airline sales database.

Choose from one of Alaska Airlines’s 26 weekly direct flights from Bellingham Intl. Airport (BLI) to Seattle - Tacoma Intl. Airport (SEA). To view available options, enter your origin, destination and dates and hit search. Then select the “Nonstop” and “Airline” filters.

Depart Bellingham Intl. Airport (BLI) for Seattle - Tacoma Intl. Airport (SEA) on a nonstop Alaska Airlines flight, and you’ll be in the air for approximately 50m.

If flexibility is what you’re after, Thursday offers the most choice for Alaska Airlines flights from Bellingham Intl. Airport (BLI) to Seattle - Tacoma Intl. Airport (SEA). You can select from 4 different departures.

Setting off from BLI at 5:19AM UTC-8, the first Alaska Airlines flight to SEA lands at 6:10AM UTC-8. Flying early means you’ll be less likely to encounter cancellations or delays.* After something later? The last Alaska Airlines flight from BLI to SEA departs at 6:10PM UTC-8 and touches down at 7:00PM UTC-8.*Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.

Get on an Alaska Airlines flight from Bellingham Intl. Airport (BLI) to Seattle, and you’re most likely to touch down at Seattle - Tacoma Intl. Airport (SEA). This is the airline’s primary hub in this city.

With top-tier customer service and a rewarding loyalty program, Alaska Airlines is a favorite for many passengers heading from BLI to SEA. What’s more, if you’re a Mileage Plan and One Key™ member booking with Expedia, you could earn OneKeyCash™* on eligible flights on top of your airline miles, which can be put toward future travel.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

You’ll most likely board an Embraer 175 for your Alaska Airlines flight from Bellingham Intl. Airport (BLI) to Seattle - Tacoma Intl. Airport (SEA). However, you could be switched to an alternative aircraft if there’s an operational need.

Typically, you can cancel or change your flight, although there may be additional fees if you made your booking more than 24 hours ago. Need flexible options? Use our “Changes included” or “No cancel fee” filter to find flights that won’t charge extra if you have to adjust your plans. To modify your booking, head to “Trips,” select your flight and click on “Manage Booking” for more details.