BLI - SEA

$89 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 12/31. 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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Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$137
Typical prices: $290-$315
Alaska Airlines
Wed 3/11Tue 3/24
BLI - SEA • Non-stop
Cheapest one-way
$89
Typical prices: $98-$189
Alaska Airlines
Wed 12/31
BLI - SEA • Non-stop
Our travelers' advice
AI-generated summary based on content written by travel experts
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
When to travel
February
Cheapest • 38% price drop
October
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
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

Wed, Mar 11 - Tue, Mar 24
Alaska Airlines Logo
11:53 am - 12:54 pmBLI-SEA
1h 01mnonstop
Alaska Airlines Logo
11:10 pm - 12:01 amSEA-BLI
0h 51mnonstop
$137Alaska Airlines
Find Deal
Thu, Mar 12 - Tue, Mar 24
Alaska Airlines Logo
4:19 pm - 5:20 pmBLI-SEA
1h 01mnonstop
Alaska Airlines Logo
9:15 pm - 10:07 pmSEA-BLI
0h 52mnonstop
$138Alaska Airlines
Find Deal
Wed, Mar 11 - Wed, Mar 25
Alaska Airlines Logo
5:15 am - 6:16 amBLI-SEA
1h 01mnonstop
Alaska Airlines Logo
4:35 pm - 5:25 pmSEA-BLI
0h 50mnonstop
$147Alaska Airlines
Find Deal
Fri, Jan 2 - Mon, Jan 5
Alaska Airlines Logo
5:20 am - 6:16 amBLI-SEA
0h 56mnonstop
Alaska Airlines Logo
11:20 pm - 12:16 amSEA-BLI
0h 56mnonstop
$148Alaska Airlines
Find Deal
Wed, Mar 11 - Thu, Mar 26
Alaska Airlines Logo
11:53 am - 12:54 pmBLI-SEA
1h 01mnonstop
Alaska Airlines Logo
11:10 pm - 12:01 amSEA-BLI
0h 51mnonstop
$157Alaska Airlines
Find Deal
Wed, Dec 17 - Wed, Dec 24
Alaska Airlines Logo
1:04 pm - 2:02 pmBLI-SEA
0h 58mnonstop
Alaska Airlines Logo
11:20 am - 12:16 pmSEA-BLI
0h 56mnonstop
$158Alaska Airlines
Find Deal
Mon, Mar 2 - Fri, Mar 6
Alaska Airlines Logo
5:15 am - 6:16 amBLI-SEA
1h 01mnonstop
Alaska Airlines Logo
8:47 pm - 9:42 pmSEA-BLI
0h 55mnonstop
$178Alaska Airlines
Find Deal
Wed, Mar 11 - Sat, Mar 28
Alaska Airlines Logo
9:00 am - 10:01 amBLI-SEA
1h 01mnonstop
Alaska Airlines Logo
11:20 am - 12:14 pmSEA-BLI
0h 54mnonstop
$187Alaska Airlines
Find Deal
Thu, Mar 12 - Sun, Mar 29
Alaska Airlines Logo
5:15 am - 6:16 amBLI-SEA
1h 01mnonstop
Alaska Airlines Logo
11:10 pm - 12:01 amSEA-BLI
0h 51mnonstop
$188Alaska Airlines
Find Deal
Sat, Mar 14 - Wed, Mar 25
Alaska Airlines Logo
5:04 pm - 6:05 pmBLI-SEA
1h 01mnonstop
Alaska Airlines Logo
4:35 pm - 5:25 pmSEA-BLI
0h 50mnonstop
$198Alaska Airlines
Find Deal
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 March.

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 Saturday. On your return trip to Bellingham, you should consider flying back on a Sunday, and avoid Fridays 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 $147 (return) on average. On the other hand, the most expensive months are December and July, where the average cost of round-trip tickets is $338 and $314 respectively.

Expert advice

Expert advice for your flight from Bellingham to Seattle

 
Snippets provided in this section are AI-generated based on a summarization of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airports
BLI

BLI boasts short security wait times, even during peak hours. Staff can assist if you're running late, ensuring a smooth departure.

SEA

For a cost-effective trip from SEA to downtown, use the Link light rail. It takes about 40 minutes and avoids traffic delays.

Our travel experts
Harriet Baskas

Harriet Baskas

Expert on SEA

Harriet Baskas

Harriet Baskas

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

Lucas Aykroyd

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 seasonJanuary
Cheapest flight$89
Best time to beat the crowds with an average 13% drop in price.
Most popular time to fly with an average 15% 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 $89 for a one-way ticket and $137 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, American Airlines, and Delta offer inflight Wi-Fi service on the Bellingham to Seattle flight route.

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

    The Airbus A319 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 $198 or less one-way and $393 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.
8.0
Alaska AirlinesOverall score based on 11329 reviews
7.1Food
7.8Comfort
8.5Crew
8.1Boarding
7.0Entertainment
Airline reviews

I liked the free snacks and drink. I liked the onboard entertainment. I did not like the WiFi cutting out in middle of my movie.

8.0 ExcellentManoj, Nov 2025DCA - SEA
Read more Alaska Airlines reviews

I liked the free snacks and drink. I liked the onboard entertainment. I did not like the WiFi cutting out in middle of my movie.

The small ej plane didn’t have any entertainment aside from the stuff on the Alaska website that has to be accessed from your own device. But everything else was just great.

Last-minute flight delay in originating flight caused me to miss connection in Seattle by 10 minutes....leading to a 7-hour wait. Communication was poor. Boarding: your staff really need to do a better job of making sure that passengers board with their assigned group. I was in group C, and most of us were waiting but people just kept walking into the line, with the result that all the bin space was taken. You should check boarding group with each passenger and if they are trying to cut in early, tell them to wait.

Flight from PSP delayed ~2hs and missed connection. Terrible service providing acommodations & food (no rides - just the hotel van every 30 min, which you have to call). 12 dollars in food for a 9 hour delay. 30+ minutes to get everything sorted out.

Confusing now Hawaiian and Alaskan have merged, hard to check in - they need to uncomplicated things.

The crew in first class did an amazing job keeping me comfortable, well fed and with plenty to drink. They work hard and deserve to be recognized

I would have liked if the flight existed. To be fair the federal government canceled it. But, since it WAS canceled, I would have liked it if Alaska Airlines had moved a finger to assist me rather then abandoning me with my luggage, unable to check it, for 14 hours in Portland. So federal regulations forbid them from storing my bag? Then at least help me find storage or SOMETHING.

Hate this airline. Uncomfortable seats, no screens, no good food.

Have mounted entertainment for long flights instead of making customers use their own equipment

I wish my checked suitcase could have been checked since I arrived an hour before take off .

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

Information on your arrival and departure airports

Compare transportation modes for Bellingham to Seattle

Transportation modeAverage priceAverage duration
Flights$9560h 56m
Buses$422h 15m