$132+ Cheap flights from Bellingham to Seattle (BLI - SEA)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/13. Fares are subject to change and may not be available on all flights or dates of travel.
BLI — SEA
Nov 29 — Dec 61
Round-trip
1 adult, Economy
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1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Bellingham to Seattle
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Cheapest flights from Bellingham to SeattleExplore the most affordable flight options available from Bellingham to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2026.
Explore the most affordable flight options available from Bellingham to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2026.
This Alaska Airlines deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/42:06 pm -
Nonstop0h 59m
Tue 12/810:41 pm -
Nonstop0h 57m
Deal found 10/29![Alaska Airlines logo]()
$222
This deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/252:44 pm -
Nonstop0h 59m
Thu 12/319:22 pm -
Nonstop0h 57m
Deal found 10/26![Alaska Airlines logo]()
$227
This Orbitz deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/77:31 pm -
Nonstop0h 57m
Wed 1/137:56 pm -
1 stop2h 40m
Deal found 10/27![Alaska Airlines logo]()
$282
This Priceline deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/257:24 pm -
Nonstop0h 58m
Wed 12/210:41 pm -
Nonstop0h 57m
Deal found 10/28![Alaska Airlines logo]()
$307
This Alaska Airlines deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/237:24 pm -
Nonstop0h 58m
Mon 11/3010:55 pm -
Nonstop0h 55m
Deal found 10/27![Alaska Airlines logo]()
$317
This Priceline deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/265:09 am -
Nonstop1h 01m
Mon 12/710:41 pm -
Nonstop0h 57m
Deal found 10/27![Alaska Airlines logo]()
$337
This Alaska Airlines deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/248:21 am -
1 stop3h 48m
Tue 12/110:41 pm -
Nonstop0h 57m
Deal found 10/27![Alaska Airlines logo]()
$347
Best flights from Bellingham to SeattleDiscover carefully curated flight deals from Bellingham to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 30, 2026.
Discover carefully curated flight deals from Bellingham to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 30, 2026.
This Alaska Airlines deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/42:06 pm -
Nonstop0h 59m
Tue 12/810:41 pm -
Nonstop0h 57m
Deal found 10/25![Alaska Airlines logo]()
$222
This Priceline deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/257:24 pm -
Nonstop0h 58m
Wed 12/210:41 pm -
Nonstop0h 57m
Deal found 10/28![Alaska Airlines logo]()
$307
This Alaska Airlines deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2612:18 pm -
1 stop20h 12m
Mon 12/710:41 pm -
Nonstop0h 57m
Deal found 10/27![Alaska Airlines logo]()
$340
This Alaska Airlines deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/248:21 am -
1 stop3h 48m
Tue 12/110:41 pm -
Nonstop0h 57m
Deal found 10/27![Alaska Airlines logo]()
$347
Last-minute flights from Bellingham to SeattleDiscover last-minute flight deals from Bellingham to Seattle. Data last updated October 30, 2026 and is based on user searches.
Discover last-minute flight deals from Bellingham to Seattle. Data last updated October 30, 2026 and is based on user searches.
This Priceline deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/137:29 pm -
Nonstop0h 57m
Tue 11/1712:16 pm -
Nonstop1h 02m
Deal found 10/29![Alaska Airlines logo]()
$397
This Alaska Airlines deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/237:24 pm -
Nonstop0h 58m
Mon 11/3010:55 pm -
Nonstop0h 55m
Deal found 10/27![Alaska Airlines logo]()
$317
This Alaska Airlines deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/248:21 am -
1 stop3h 48m
Tue 12/110:41 pm -
Nonstop0h 57m
Deal found 10/27![Alaska Airlines logo]()
$347
This Priceline deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/257:24 pm -
Nonstop0h 58m
Wed 12/210:41 pm -
Nonstop0h 57m
Deal found 10/28![Alaska Airlines logo]()
$307
This Priceline deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/265:09 am -
Nonstop1h 01m
Mon 12/710:41 pm -
Nonstop0h 57m
Deal found 10/27![Alaska Airlines logo]()
$337
One-way flights from Bellingham to SeattleSearch for one-way flight options from Bellingham to Seattle. Find affordable one-way fares based on user searches. Data last updated October 30, 2026.
Search for one-way flight options from Bellingham to Seattle. Find affordable one-way fares based on user searches. Data last updated October 30, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/139:51 am -
2 stops34h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Multiple Airlines logo]()
$132
This Alaska Airlines deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/612:56 pm -
Nonstop0h 57m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/29![Alaska Airlines logo]()
$139
This Alaska Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/147:31 pm -
Nonstop0h 57m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Alaska Airlines logo]()
$144
This Priceline deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/187:29 pm -
Nonstop0h 57m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Alaska Airlines logo]()
$184
This American Airlines deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/157:01 am -
Nonstop1h 08m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![American Airlines logo]()
$189
This Kiwi.com deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/1510:12 am -
1 stop7h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![Multiple Airlines logo]()
$197
This Kiwi.com deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/157:35 pm -
2 stops46h 58m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Multiple Airlines logo]()
$205
Find flight deals from Bellingham to Seattle
Discover tips and strategies to find the most affordable flight options for your journey from Bellingham (BLI) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 30, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $222 (Alaska Airlines) |
One-way from | $132 (Kiwi.com) |
Popular in | December |
Cheapest in | November |
Average price | $357 |
Good round-trip deal | $536 or less |
Good one-way deal | $324 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Bellingham to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated October 30, 2026.
Use the filters below to find and compare flights from Bellingham to Seattle that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BellinghamSeattle
BLI Bellingham - SEA Seattle/Tacoma Intl
BLISEA
Bellingham
Wed 3/10
6:25 pm-7:22 pm
Nonstop0h 57m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$139
BellinghamSeattle
BLI Bellingham - SEA Seattle/Tacoma Intl
BLISEA
Bellingham
Mon 12/14
7:31 pm-8:28 pm
Nonstop0h 57m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$144
BellinghamSeattle
BLI Bellingham - SEA Seattle/Tacoma Intl
BLISEA
Bellingham
Fri 12/11
7:31 pm-8:28 pm
Nonstop0h 57m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$144
BellinghamSeattle
BLI Bellingham - SEA Seattle/Tacoma Intl
BLISEA
Bellingham
Thu 3/4
6:25 pm-7:22 pm
Nonstop0h 57m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$144
BellinghamSeattle
BLI Bellingham - SEA Seattle/Tacoma Intl
BLISEA
Bellingham
Fri 12/4
2:06 pm-3:05 pm
Nonstop0h 59m
Seattle/Tacoma Intl
Tue 12/8
10:41 pm-11:38 pm
Nonstop0h 57m
$222
BellinghamSeattle
BLI Bellingham - SEA Seattle/Tacoma Intl
BLISEA
Bellingham
Fri 1/15
10:12 am-3:14 pm
2 stops29h 02m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$224
BellinghamSeattle
BLI Bellingham - SEA Seattle/Tacoma Intl
BLISEA
Bellingham
Wed 11/18
8:33 am-11:47 am
1 stop3h 14m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$244
BellinghamSeattle
BLI Bellingham - SEA Seattle/Tacoma Intl
BLISEA
Bellingham
Fri 12/11
11:11 am-3:43 pm
2 stops28h 32m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$262
Quickest round-trip
BellinghamSeattle
BLI Bellingham - SEA Seattle/Tacoma Intl
BLISEA
Bellingham
Sun 11/15
5:14 am-6:10 am
Nonstop0h 56m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$299
BellinghamSeattle
BLI Bellingham - SEA Seattle/Tacoma Intl
BLISEA
Bellingham
Wed 11/25
7:24 pm-8:22 pm
Nonstop0h 58m
Seattle/Tacoma Intl
Wed 12/2
10:41 pm-11:38 pm
Nonstop0h 57m
$307
Showing 1-10 of 12 resultsSorted by cheapest first
Compare providers for flights from Bellingham to Seattle
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Bellingham to Seattle in October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Bellingham-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Bellingham-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Bellingham-Seattle flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Bellingham-Seattle flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Bellingham-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Bellingham to Seattle
Have a flexible travel schedule? Discover the best time to fly to Seattle from Bellingham with our price prediction graph.
BLI-SEA
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Bellingham to Seattle
What is the cheapest time of day to fly from BLI to SEA?
Find hourly flight availability from Bellingham to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 30, 2026.
When flying from Bellingham to Seattle, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 4% versus a flight in the morning.
What is the cheapest day to fly from Bellingham to Seattle?
Use this chart to determine the cheapest time to fly round-trip from Bellingham to Seattle. Price data was last updated on October 24, 2026.
Travelers seeking maximum savings on their Bellingham to Seattle flight should consider departing on Friday afternoons when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
Reviews of airlines servicing Seattle
Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated October 30, 2026.
Read reviews from past customers who have flown Alaska Airlines from Bellingham to Seattle. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
7.9
Boarding
8.1
Crew
8.5
Comfort
7.8
Entertainment
7.0
Food
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Overall
7.9
Boarding
8.1
Crew
8.5
Comfort
7.8
Entertainment
7.0
Food
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Related info for your journey
Find useful and relevant information for your journey from Bellingham to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Seattle?
Book flights to Seattle if you plan to visit one of these locationsSeaTac
Renton
Tacoma
Lacey
Leavenworth
Tukwila
Snoqualmie
Puyallup
Lynnwood
Olympia
Centralia
Kent
Tumwater
Ocean Shores
Ellensburg
Issaquah
Lakewood
Poulsbo
Marysville
Shoreline
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Bellingham and Seattle flights
Browse other Bellingham and Seattle flight options. Last updated on October 30, 2026.
Other flights from Bellingham
Browse through other flights departing from Bellingham. Flights are based on user searches made on Cheapflights and were last updated on October 30, 2026.
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Other flights to Seattle
Explore flights to Seattle departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 30, 2026.
Top airline flying from Bellingham to Seattle
Discover the top airline that operate flights from Bellingham to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated October 30, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$117 | Average$282 | FlexibilityNo cancel fee | On-time75% |