An Alaska Airlines plane taking off with a snow-capped mountain in the background.

CA $182 Cheap Flights from Bellingham (BLI) to Seattle (SEA)

View CA $182 flight on Sat, Aug 22, 2026Opens in a new window

Popular airlines from Bellingham, WA (BLI-Bellingham Intl.) to Seattle-Tacoma International Airport (SEA)

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Cheap flights from Bellingham (BLI) to Seattle (SEA)

Prices were available within the past 7 days and start at CA $182 for one-way flights and CA $279 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Sat, Aug 22 - Sat, Aug 29
BLI
Bellingham
SEA
Seattle
CA $279 Roundtrip, found 15 hours ago
CA $279
Roundtrip
found 15 hours ago
Select Alaska Airlines flight, departing Sat, Aug 22 from Bellingham to Seattle, returning Sat, Aug 29, priced at CA $279 found 15 hours ago
Alaska Airlines
Tue, Aug 25 - Tue, Sep 8
BLI
Bellingham
SEA
Seattle
CA $281 Roundtrip, found 6 days ago
CA $281
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Tue, Aug 25 from Bellingham to Seattle, returning Tue, Sep 8, priced at CA $281 found 6 days ago
Alaska Airlines
Sat, Aug 22 - Sat, Aug 29
BLI
Bellingham
SEA
Seattle
CA $293 Roundtrip, found 15 hours ago
CA $293
Roundtrip
found 15 hours ago
Select Alaska Airlines flight, departing Sat, Aug 22 from Bellingham to Seattle, returning Sat, Aug 29, priced at CA $293 found 15 hours ago
Alaska Airlines
Mon, Oct 19 - Tue, Nov 3
BLI
Bellingham
SEA
Seattle
CA $295 Roundtrip, found 5 days ago
CA $295
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Mon, Oct 19 from Bellingham to Seattle, returning Tue, Nov 3, priced at CA $295 found 5 days ago
Alaska Airlines
Sat, Aug 22 - Sat, Aug 29
BLI
Bellingham
SEA
Seattle
CA $307 Roundtrip, found 15 hours ago
CA $307
Roundtrip
found 15 hours ago
Select Alaska Airlines flight, departing Sat, Aug 22 from Bellingham to Seattle, returning Sat, Aug 29, priced at CA $307 found 15 hours ago
Alaska Airlines
Fri, Sep 11 - Sun, Sep 27
BLI
Bellingham
SEA
Seattle
CA $309 Roundtrip, found 5 days ago
CA $309
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Fri, Sep 11 from Bellingham to Seattle, returning Sun, Sep 27, priced at CA $309 found 5 days ago
Alaska Airlines
Sat, Aug 22 - Sat, Aug 29
BLI
Bellingham
SEA
Seattle
CA $321 Roundtrip, found 15 hours ago
CA $321
Roundtrip
found 15 hours ago
Select Alaska Airlines flight, departing Sat, Aug 22 from Bellingham to Seattle, returning Sat, Aug 29, priced at CA $321 found 15 hours ago
Alaska Airlines
Wed, Aug 19 - Sat, Aug 22
BLI
Bellingham
SEA
Seattle
CA $322 Roundtrip, found 4 days ago
CA $322
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Wed, Aug 19 from Bellingham to Seattle, returning Sat, Aug 22, priced at CA $322 found 4 days ago
Alaska Airlines
Sat, Aug 22 - Sat, Aug 29
BLI
Bellingham
SEA
Seattle
CA $335 Roundtrip, found 15 hours ago
CA $335
Roundtrip
found 15 hours ago
Select Alaska Airlines flight, departing Sat, Aug 22 from Bellingham to Seattle, returning Sat, Aug 29, priced at CA $335 found 15 hours ago
American Airlines
Fri, Feb 5 - Sat, Feb 6
BLI
Bellingham
SEA
Seattle
CA $437 Roundtrip, found 5 days ago
CA $437
Roundtrip
found 5 days ago
Select American Airlines flight, departing Fri, Feb 5 from Bellingham to Seattle, returning Sat, Feb 6, priced at CA $437 found 5 days ago

Alternative airports near Seattle

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Seattle - Tacoma Intl. SEA. Cheapest option available. Average driving time to city centre is 20 minutes. Flights from CA $463
SEA
Seattle - Tacoma Intl.
Cheapest
Average driving time to city centre20 min
Flights from CA $463

Find the cheapest month to fly from Bellingham (BLI) to Seattle (SEA)

January is typically the cheapest month to fly

From CA $194 - CA $266 per traveller.

Frequently asked questions

How much does a flight from Bellingham, WA (BLI-Bellingham Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) cost?
You can find cheap one-way flights from CA $182 and cheap return flights from CA $279 BLI to SEA with Expedia. One-way flights typically cost between CA$142 and CA$528. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when BLI to SEA ticket fares go up or down.
What is the cheapest month to fly from Bellingham, WA (BLI-Bellingham Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The cheapest months to fly from BLI to SEA are typically during off-peak season when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you are able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Bellingham, WA (BLI-Bellingham Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
Only one airline offers direct flights from Bellingham, WA (BLI-Bellingham Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.). American Airlines operates 7 direct flights from Bellingham, WA (BLI-Bellingham Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) every week.
How do I find cheap flights from Bellingham, WA (BLI) to Seattle, WA (SEA)?
To find a cheap flight from Bellingham, WA (BLI) to Seattle, WA (SEA), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Bellingham, WA (BLI-Bellingham Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The best airline to fly with from Bellingham, WA (BLI-Bellingham Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) will differ from traveler to traveler. If you like to fly early, Alaska Airlines offers early morning flights. If price is the most important factor, Alaska Airlines typically offers the lowest fares. Alaska Airlines offers the most daily flights from Bellingham, WA (BLI-Bellingham Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.), which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Bellingham, WA (BLI-Bellingham Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Bellingham, WA (BLI-Bellingham Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
There is 1 nonstop flight per day from Bellingham, WA (BLI-Bellingham Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.). For even more choices, look at flights that include layovers, as there is approximately 1 total flight per day. Some common connection points include Portland Intl. (PDX).
What is the earliest flight from Bellingham, WA (BLI-Bellingham Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The earliest flight from Bellingham International Airport (BLI) to Seattle - Tacoma International Airport (SEA) typically departs around 5:15 AM local time, operated by Alaska Airlines. This is a seasonal service active in October. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Bellingham, WA (BLI-Bellingham Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
You'll typically find the most flights from Bellingham Intl. (BLI) to Seattle - Tacoma Intl. (SEA) on a Wednesday, with around 5 flights available. This gives you a good selection of options for your travel plans. Alaska Airlines is a major airline on this route. Flight schedules are consistent throughout the week, so you'll find similar options on other days too.
What are the most popular departure times for flights from Bellingham, WA (BLI-Bellingham Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The most popular departure times for flights from Bellingham, WA (BLI-Bellingham Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) are in the early morning, from 3am to 6am. Alaska Airlines offers flights during this window. Many travellers prefer this time as it allows for an early start to their day in Seattle.
How long does it take to fly from Bellingham, WA (BLI-Bellingham Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
A direct flight from Bellingham, WA (BLI-Bellingham Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) typically takes around 1 hour. This route covers a distance of approximately 151 kilometres. Keep in mind that actual flight times can vary slightly due to factors like wind patterns and air traffic, so it's always a good idea to allow a little extra time when planning your journey.
Can you fly business or first class from Bellingham, WA (BLI-Bellingham Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
You can fly first class between BLI and SEA. First class cabins are available on Alaska Airlines.
How do I earn miles on a Bellingham, WA (BLI-Bellingham Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight with Expedia?
It's easy to earn miles on a Bellingham, WA (BLI-Bellingham Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Seattle, WA (SEA) from Bellingham, WA (BLI)?
If you're planning to travel to Seattle from Bellingham Intl. (BLI), you can fly directly into Seattle - Tacoma Intl. (SEA). Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Bellingham, WA (BLI-Bellingham Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) at the last minute?
Typically, booking a last minute flight from Bellingham, WA (BLI-Bellingham Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Bellingham, WA (BLI-Bellingham Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight and hotel package?
Securing a Bellingham, WA (BLI-Bellingham Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Bellingham, WA (BLI) to Seattle, WA (SEA)?
If you booked your Bellingham, WA (BLI) to Seattle, WA (SEA) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

0
Origin airport
Bellingham Intl.
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Alaska Airlines, American Airlines
Roundtrip price
CA $279
Distance
150 km

Book with confidence

Bellingham to Seattle Flights

The easy way to book your flights from Bellingham to Seattle 

With Expedia, it’s simple to find and book flights to Seattle from Bellingham whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 20 airlines that cover this route. There are nonstop flights to Seattle - Tacoma Intl., too.  

Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Bellingham to Seattle today, tomorrow, or this week.  

 

Save dollars with cheap flights from Bellingham Intl., BLI to Seattle - Tacoma Intl., SEA 

Sort your search results by price to find great deals on your flight from Bellingham to Seattle—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Seattle from Bellingham currently is just CA $279 rising to CA $437.  

Here are more money-saving tips: 

  • Fly in August when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to Seattle  
  • Avoid peak season and weekends when flights can cost more
  • Early morning and late-night flights are sometimes cheaper, so try varying your travel times 
  • One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! 

 

Reasons to choose Expedia for your flight to Seattle from Bellingham 

Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Seattle with Expedia today.

Bellingham to Seattle Flights

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