BLI - SEA

$149 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 6/26. 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
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Everything you should know

Cheapest round-trip
$187
Typical prices: $327-$188
Alaska Airlines
Wed 10/7Wed 10/14
BLI - SEA • Non-stop
Cheapest one-way
$149
Typical prices: $154-$270
Alaska Airlines
Fri 6/26
BLI - SEA • Non-stop
Top airlines
Cheapest • from $187 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
You can fly direct with Alaska Airlines. Average duration is 0h 56m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
When to travel
Cheapest • 100% price drop
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, Oct 7 - Wed, Oct 14
Alaska Airlines Logo
7:18 pm - 8:16 pm
BLI
-
SEA
0h 58mnonstop
Alaska Airlines Logo
12:32 pm - 1:29 pm
SEA
-
BLI
0h 57mnonstop
$187Alaska Airlines
Fri, Sep 25 - Mon, Sep 28
Alaska Airlines Logo
7:26 pm - 8:25 pm
BLI
-
SEA
0h 59mnonstop
Alaska Airlines Logo
10:50 pm - 11:44 pm
SEA
-
BLI
0h 54mnonstop
$207Alaska Airlines
Tue, Sep 1 - Mon, Sep 7
Alaska Airlines Logo
7:19 pm - 8:18 pm
BLI
-
SEA
0h 59mnonstop
Alaska Airlines Logo
11:00 pm - 11:59 pm
SEA
-
BLI
0h 59mnonstop
$212Alaska Airlines
Fri, Sep 4 - Mon, Sep 7
Alaska Airlines Logo
1:52 pm - 2:51 pm
BLI
-
SEA
0h 59mnonstop
Alaska Airlines Logo
11:00 pm - 11:59 pm
SEA
-
BLI
0h 59mnonstop
$222Alaska Airlines
Wed, Jul 1 - Wed, Jul 8
Alaska Airlines Logo
5:26 pm - 6:25 pm
BLI
-
SEA
0h 59mnonstop
Alaska Airlines Logo
3:50 pm - 4:46 pm
SEA
-
BLI
0h 56mnonstop
$237Alaska Airlines
Wed, Jul 1 - Tue, Jul 7
Alaska Airlines Logo
1:49 pm - 2:46 pm
BLI
-
SEA
0h 57mnonstop
Alaska Airlines Logo
11:01 pm - 11:59 pm
SEA
-
BLI
0h 58mnonstop
$247Alaska Airlines
Fri, Sep 25 - Mon, Sep 28
Alaska Airlines Logo
7:00 am - 12:50 pm
BLI
-
SEA
5h 50m
1 stop
Alaska Airlines Logo
10:50 pm - 11:44 pm
SEA
-
BLI
0h 54mnonstop
$262Alaska Airlines
Mon, Aug 24 - Fri, Aug 28
Alaska Airlines Logo
7:19 pm - 8:18 pm
BLI
-
SEA
0h 59mnonstop
Alaska Airlines Logo
11:00 pm - 11:59 pm
SEA
-
BLI
0h 59mnonstop
$267Alaska Airlines
Wed, Oct 7 - Wed, Oct 14
Alaska Airlines Logo
7:18 pm - 8:16 pm
BLI
-
SEA
0h 58mnonstop
Alaska Airlines Logo
10:35 am - 10:35 pm
SEA
-
BLI
12h 00m
1 stop
$270Alaska Airlines
Sun, Sep 20 - Thu, Sep 24
Multiple Airlines Logo
7:30 am - 10:00 am
BLI
-
SEA
26h 30m
1 stop
Multiple Airlines Logo
7:00 pm - 1:11 pm
SEA
-
BLI
18h 11m
1 stop
$274Multiple 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 October.

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 Wednesday and more expensive on a Monday. On your return trip to Bellingham, you should consider flying back on a Tuesday, 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.

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.

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.

Good to know

Low seasonSeptember
Cheapest flight$149
Best time to beat the crowds with an average 49% drop in price.
Most popular time to fly with an average 3% 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 5 days, the lowest price for a flight from Bellingham to Seattle was $149 for a one-way ticket and $187 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 $249 or less one-way and $572 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 12459 reviews
8.1Boarding
7.0Entertainment
7.1Food
7.8Comfort
8.5Crew
Airline reviews

The flight was delayed out of BIL so many times that I was not able to make my connection. I was rebooked for the next day, losing a full day of my trip. I still have not been compensated as promised.

2.0 MediocreAnonymous, Jun 2026
BIL - SEA
Read more Alaska Airlines reviews

The flight was delayed out of BIL so many times that I was not able to make my connection. I was rebooked for the next day, losing a full day of my trip. I still have not been compensated as promised.

Flight was delayed, but not be a lot. Crew at the departure gate was friendly. Flight was filled with turbulence, enough to concern my husband. Snacks were delivered to rows in front of us but attendant stopped handing out snacks when she got to our row. Team was efficient but lackadaisical. Usually on board crews are more animated and friendly. No onboard entertainment and no seatback video screens for a six hour flight. Landing was a bit rough. We were told the wrong turnstile for luggage.

2 hour delay. Then some luggage was unloaded at 1baggage claim #7 then without notice the baggage claim was changed to #12. No one informed the passengers they were changing baggage claim turnstile. Several of us waited for 90 minutes after the 1st turnstile stopped and changed to other flights luggage.

Many gate changes in Seattle and mechanical problems on plane which resulted in a new gate change. Both flights, from Seattle to Detroit and Seattle to Eugene resulted in a lot of walking and tram taking.

No negatives. Crew was great, flight was on time and there were no crazy passengers. 🤩

I had ordered breakfast several days prior to the flight. 1) we did not rreceive our breakfast and crew knew nothing about it! We left TPA at 8 a.m. but drink cart did not appear until 10:30 a.m. and did not appear a second time either. Was unaware that Alaskan Air offers no music, flight aware, or movies.

I flew standby with my two children and completely forgot it was Memorial Day weekend. We tried to fly from PDX to YVR. Unfortunately, after four attempts, we gave up and tried SEA instead after the holiday. The ground crew was very helpful, checking us in and accommodating us when we were finally able to get on a flight. The sad part was that they accidentally loaded one of my suitcases on the Vancouver flight without us during one of our attempts to get on a flight, even though it had a standby tag on it. I filed a report with baggage services, and thankfully, it was returned to PDX the following day. AS was in touch with us and updated us on the process of returning the luggage to the USA.

It was efficient and great. DIA took a while to let us leave but other than that it was great.

90 minute delay boarding the plane, 45 minute delay on the terminal, 2 hours late arriving, currently waiting 45 minutes on the tarmac for a gate so we can BEGIN deboarding. Absolute mess. Definitely will be my last flight with Alaska.

Extremely professional crew there are very friendly and first class. Everything worked well on the plane. Food was to be expected. Drinks were very good. Shout out to Charlie in first class who was an excellent flight attendant.

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$9080h 54m
Buses$422h 15m