BLI - SEA

$124 Find Cheap Flights from Bellingham to Seattle

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Bellingham to Seattle departing on 6/4. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Seattle

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Bellingham to Seattle, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Bellingham to Seattle, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$167
Typical prices: $385-$283
Alaska Airlines
Sat 5/30Wed 6/3
BLI - SEA • Non-stop
Cheapest one-way
$124
Typical prices: $133-$301
Alaska Airlines
Thu 6/4
BLI - SEA • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
BLI offers short security wait times, even at peak hours.
Use the Link light rail for a cost-effective trip from SEA.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Alaska Airlines
Cheapest • from $167 (round-trip)
Alaska Airlines
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Every day
You can fly direct with Alaska Airlines. Average duration is 0h 55m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
When to travel
February
Cheapest • 100% price drop
October
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Seattle!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Bellingham to Seattle (BLI-SEA)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Bellingham to Seattle that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Bellingham to Seattle

Sat, May 30 - Wed, Jun 3
Alaska Airlines Logo
5:53 pm - 6:50 pm
BLI
-
SEA
0h 57mnonstop
Alaska Airlines Logo
12:18 pm - 1:20 pm
SEA
-
BLI
1h 02mnonstop
$167Alaska Airlines
Sat, Jun 6 - Sat, Jun 13
Alaska Airlines Logo
5:53 pm - 6:50 pm
BLI
-
SEA
0h 57mnonstop
Alaska Airlines Logo
3:50 pm - 4:46 pm
SEA
-
BLI
0h 56mnonstop
$202Alaska Airlines
Sat, May 30 - Wed, Jun 3
Alaska Airlines Logo
5:53 pm - 6:50 pm
BLI
-
SEA
0h 57mnonstop
Alaska Airlines Logo
11:10 pm - 12:07 am
SEA
-
BLI
0h 57mnonstop
$212Alaska Airlines
Tue, Jul 14 - Wed, Jul 22
Alaska Airlines Logo
1:49 pm - 2:46 pm
BLI
-
SEA
0h 57mnonstop
Alaska Airlines Logo
3:50 pm - 4:46 pm
SEA
-
BLI
0h 56mnonstop
$236Alaska Airlines
Mon, Jun 15 - Mon, Jun 22
Alaska Airlines Logo
5:26 pm - 6:25 pm
BLI
-
SEA
0h 59mnonstop
Alaska Airlines Logo
11:01 pm - 11:59 pm
SEA
-
BLI
0h 58mnonstop
$237Alaska Airlines
Mon, Jun 8 - Sun, Jun 14
Alaska Airlines Logo
5:53 pm - 6:50 pm
BLI
-
SEA
0h 57mnonstop
Alaska Airlines Logo
11:01 pm - 11:59 pm
SEA
-
BLI
0h 58mnonstop
$247Alaska Airlines
Sat, May 30 - Wed, Jun 3
Alaska Airlines Logo
7:55 am - 10:42 am
BLI
-
SEA
2h 47m
1 stop
Alaska Airlines Logo
12:18 pm - 1:20 pm
SEA
-
BLI
1h 02mnonstop
$272Alaska Airlines
Sun, Jul 19 - Wed, Jul 22
Multiple Airlines Logo
1:16 pm - 10:39 am
BLI
-
SEA
21h 23m
1 stop
Multiple Airlines Logo
8:12 pm - 11:28 pm
SEA
-
BLI
27h 16m
1 stop
$273Multiple Airlines
Mon, Jul 20 - Wed, Jul 22
Multiple Airlines Logo
3:42 pm - 10:39 am
BLI
-
SEA
18h 57m
1 stop
Multiple Airlines Logo
8:12 pm - 10:39 am
SEA
-
BLI
14h 27m
1 stop
$276Multiple Airlines
Fri, Oct 23 - Tue, Nov 3
Alaska Airlines Logo
8:20 am - 1:19 pm
BLI
-
SEA
4h 59m
1 stop
Alaska Airlines Logo
5:58 pm - 6:57 pm
SEA
-
BLI
0h 59mnonstop
$277Alaska Airlines
Booking Insights

KAYAK's insights & trends for Bellingham to Seattle flights

Get data-powered insights and trends into flights from Bellingham to Seattle to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Bellingham to Seattle?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Bellingham to Seattle departing in May.

What’s the cheapest day of the week to fly from Bellingham to Seattle?

The average price of all round-trip flights from Bellingham to Seattle clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Seattle on a Thursday and more expensive on a Monday. On your return trip to Bellingham, you should consider flying back on a Sunday, and avoid Wednesdays for better deals.

What is the cheapest month to fly from Bellingham to Seattle?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Bellingham to Seattle, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Bellingham to Seattle is February, where tickets cost $0 (return) on average. On the other hand, the most expensive months are December and May, where the average cost of round-trip tickets is $518 and $328 respectively.

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Expert advice

Expert advice for your flight from Bellingham to Seattle

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Harriet Baskas

Harriet Baskas

Expert on SEA

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more
Lucas Aykroyd

Lucas Aykroyd

Expert on BLI

Lucas Aykroyd is an award-winning travel writer based in Vancouver (YVR). His favorite adventures include tracking polar bears in Nunavut and rafting over a waterfall in New Zealand. Lucas has written for the in-flight magazines of Delta, SAS, and Porter Airlines. He is also a National Geographic and Toronto Star contributor.

Read more

Good to know

Low seasonSeptember
Cheapest flight$124
Best time to beat the crowds with an average 50% drop in price.
Most popular time to fly with an average 2% increase in price.
Flight from Bellingham to Seattle

When to book flights from Bellingham to Seattle

Are your dates flexible? Find out the best times to travel from Bellingham to Seattle based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Bellingham to Seattle

  • What is the cheapest flight from Bellingham to Seattle?

    In the last 3 days, the lowest price for a flight from Bellingham to Seattle was $124 for a one-way ticket and $167 for a round-trip.

  • Do I need a passport to fly between Bellingham and Seattle?

    No, a passport isn't needed to fly from Bellingham to Seattle. However, local authorities might ask for an official ID.

  • Which airlines offer Wi-Fi service onboard planes from Bellingham to Seattle?

    Alaska Airlines, Delta, and American Airlines offer inflight Wi-Fi service on the Bellingham to Seattle flight route.

  • Which aircraft models fly most regularly from Bellingham to Seattle?

    The Embraer 175 is the aircraft model that flies most regularly on the Bellingham to Seattle flight route.

  • Which airline alliances offer flights from Bellingham to Seattle?

    oneworld is the only airline alliance operating flights between Bellingham and Seattle.

  • On which days can I fly direct from Bellingham to Seattle?

    There are nonstop flights from Bellingham to Seattle on a daily basis.

  • How does KAYAK find such low prices on flights from Bellingham to Seattle?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Bellingham to Seattle.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Bellingham to Seattle?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle from Bellingham is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Bellingham to Seattle?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Seattle with an airline and back to Bellingham with another airline. Booking your flights between Bellingham and SEA can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Bellingham to Seattle?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Seattle from Bellingham up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Bellingham to Seattle

  • Looking for a cheap flight? 25% of our users found flights on this route for $251 or less one-way and $488 or less round-trip.

Prefer to fly direct from Bellingham to Seattle?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Bellingham to Seattle/Tacoma Intl.
Find which airlines fly direct from Bellingham Airport to Seattle/Tacoma Intl Airport, which days they fly and book direct flights.

Direct departures

Bellingham to Seattle/Tacoma Intl

Monday

Alaska Airlines

Alaska Airlines

Tuesday

Alaska Airlines

Alaska Airlines

Wednesday

Alaska Airlines

Alaska Airlines

Thursday

Alaska Airlines

Alaska Airlines

Friday

Alaska Airlines

Alaska Airlines

Saturday

Alaska Airlines

Alaska Airlines

Sunday

Alaska Airlines

Alaska Airlines

See more direct flights

Direct returns

Seattle/Tacoma Intl to Bellingham

Monday

Alaska Airlines

Alaska Airlines

Tuesday

Alaska Airlines

Alaska Airlines

Wednesday

Alaska Airlines

Alaska Airlines

Thursday

Alaska Airlines

Alaska Airlines

Friday

Alaska Airlines

Alaska Airlines

Saturday

Alaska Airlines

Alaska Airlines

Sunday

Alaska Airlines

Alaska Airlines

See more direct flights

Reviews of the top airline flying from Bellingham to Seattle

 
See real verified KAYAK customer reviews for airlines flying from Bellingham to Seattle. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Bellingham to Seattle? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
Alaska AirlinesOverall score based on 12352 reviews
7.0Entertainment
8.5Crew
7.0Food
8.1Boarding
7.8Comfort
Airline reviews

Made our reservations 6 months ago. When we arrived at the airport we were informed they no longer have assigned seating. We were placed in the last row next to the restrooms. Our seats did not recline. I do not like the fact you are assigning seats. I don’t feel it’s fair. People who make last minute reservations sit in the middle seats. It’s did Southwest now have assigned seating and you assign seats. Even Southwest was more fair than Alaska.

2.0 MediocreAnonymous, May 2026
STL - SEA
Read more Alaska Airlines reviews

Made our reservations 6 months ago. When we arrived at the airport we were informed they no longer have assigned seating. We were placed in the last row next to the restrooms. Our seats did not recline. I do not like the fact you are assigning seats. I don’t feel it’s fair. People who make last minute reservations sit in the middle seats. It’s did Southwest now have assigned seating and you assign seats. Even Southwest was more fair than Alaska.

We tried for days to use online Alaska Airline app we needed to know what Gate to depart from . When we got there we were given a paper boarding ticket with the wrong gate on it . We almost missed this flight . It caused great stress and caused a health side effect. The previous flights April 24 started hour late mechanical issues . We were not allowed to depart plane in time to get correct gate and missed our flight .

Check in went smooth, flight was on time and our checked bag was delivered in a timely fashion.

I had to cancel my trip due to medical reasons. I have been unable to cancel online through either Kayak or Alaska Airlines.. I am trying to get my insured trip reimbursed by XCover. They are requiring a notice of cancellation or not using to get my refund. Please help me get that information. I have been unable to get this information from either Kayak or Alaska Airlines.

We got window seats and there was no window to look out at very disappointed in paying for a no window seat

We took off on time and rose into the wild blue yonder safely, and landed at our destination safely eighteen minutes early. In between we enjoyed a smooth flight and wonderful service by a great crew. Flight attendants and pilots made sure the trip was a memorable and happy experience. Can’t beat that!

Affirmed my disability by allowing me to board when most accessible. Very parable, helpful and friendly staff. Smooth flight overall! I always fly Alaska when possible! Thank you!

Our flight from Raleigh to Seattle delayed by hour plus. We missed connection as we couldn’t get to next gate in time Then we waited till 2:30 plane and then sat on tarmac loaded for half hour then our luggage couldn’t be found finally found where it was 2 employees sent us in wrong direction

They were really helpful with every question and my kids had never been on a plane and the staff made them feel comfortable

The merging of Kayak & the airline’s website was not always clear. Both on their own provided adequate Information about the flight. I had some challenges retrieving the boarding pass. I relied on the agent & may have paid the baggage fee twice.

Everything you need to know for your flight from Bellingham to Seattle

Information on your arrival and departure airports

Bellingham (BLI)
Seattle (SEA)