$139+ Cheap flights from Seattle to Bellingham (SEA - BLI)
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 11/7. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BLI
Oct 19 — Oct 261
Round-trip
1 adult, Economy
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Find cheap flights from Seattle to Bellingham with Cheapflights
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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
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 Seattle to Bellingham
Cheapest
Best
Last-minute
One-way
Cheapest flights from Seattle to BellinghamExplore the most affordable flight options available from Seattle to Bellingham. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 19, 2026.
Explore the most affordable flight options available from Seattle to Bellingham. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 19, 2026.
This Trip.com deal was found by Cheapflights users on 9/15. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1610:59 pm -
Nonstop0h 54m
Mon 10/197:18 pm -
Nonstop0h 58m
Deal found 9/15![Alaska Airlines logo]()
$222
This MakeMyTrip deal was found by Cheapflights users on 9/15. 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 MakeMyTrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/2310:59 pm -
Nonstop0h 54m
Fri 10/302:17 pm -
Nonstop0h 57m
Deal found 9/15![Alaska Airlines logo]()
$258
This Travelocity deal was found by Cheapflights users on 9/16. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2710:55 pm -
Nonstop0h 55m
Wed 12/22:06 pm -
Nonstop0h 59m
Deal found 9/16![Alaska Airlines logo]()
$262
This Priceline deal was found by Cheapflights users on 9/14. 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.
Mon 10/195:40 pm -
Nonstop0h 58m
Sat 10/247:18 pm -
Nonstop0h 58m
Deal found 9/14![Alaska Airlines logo]()
$282
This Alaska Airlines deal was found by Cheapflights users on 9/14. 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 10/1512:40 pm -
Nonstop0h 57m
Sun 10/187:18 pm -
Nonstop0h 58m
Deal found 9/14![Alaska Airlines logo]()
$287
This Alaska Airlines deal was found by Cheapflights users on 9/19. 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 10/1010:59 pm -
Nonstop0h 54m
Wed 10/147:18 pm -
Nonstop0h 58m
Deal found 9/19![Alaska Airlines logo]()
$297
Best flights from Seattle to BellinghamDiscover carefully curated flight deals from Seattle to Bellingham that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 19, 2026.
Discover carefully curated flight deals from Seattle to Bellingham that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 19, 2026.
This Alaska Airlines deal was found by Cheapflights users on 9/19. 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 10/1010:59 pm -
Nonstop0h 54m
Wed 10/147:18 pm -
Nonstop0h 58m
Deal found 9/19![Alaska Airlines logo]()
$297
This Alaska Airlines deal was found by Cheapflights users on 9/16. 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 10/1612:40 pm -
Nonstop0h 57m
Mon 10/197:18 pm -
Nonstop0h 58m
Deal found 9/16![Alaska Airlines logo]()
$302
This Alaska Airlines deal was found by Cheapflights users on 9/15. 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 11/3010:55 pm -
Nonstop0h 55m
Fri 12/47:31 pm -
Nonstop0h 57m
Deal found 9/15![Alaska Airlines logo]()
$327
This Alaska Airlines deal was found by Cheapflights users on 9/15. 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.
Sun 11/228:59 pm -
1 stop3h 00m
Sat 11/287:24 pm -
Nonstop0h 58m
Deal found 9/15![Alaska Airlines logo]()
$337
This Alaska Airlines deal was found by Cheapflights users on 9/18. 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 11/1212:16 pm -
Nonstop1h 02m
Sun 11/158:33 am -
1 stop24h 35m
Deal found 9/18![Alaska Airlines logo]()
$350
This Priceline deal was found by Cheapflights users on 9/14. 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.
Tue 9/2912:15 pm -
Nonstop1h 11m
Sat 10/32:17 pm -
Nonstop0h 57m
Deal found 9/14![Alaska Airlines logo]()
$397
This Alaska Airlines deal was found by Cheapflights users on 9/17. 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 10/236:58 pm -
1 stop3h 37m
Fri 10/307:18 pm -
Nonstop0h 58m
Deal found 9/17![Alaska Airlines logo]()
$412
Last-minute flights from Seattle to BellinghamDiscover last-minute flight deals from Seattle to Bellingham. Data last updated September 19, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Bellingham. Data last updated September 19, 2026 and is based on user searches.
This Priceline deal was found by Cheapflights users on 9/15. 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 10/710:59 pm -
Nonstop0h 54m
Sun 10/117:18 pm -
Nonstop0h 58m
Deal found 9/15![Alaska Airlines logo]()
$317
This Alaska Airlines deal was found by Cheapflights users on 9/19. 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 10/1010:59 pm -
Nonstop0h 54m
Wed 10/147:18 pm -
Nonstop0h 58m
Deal found 9/19![Alaska Airlines logo]()
$297
This Alaska Airlines deal was found by Cheapflights users on 9/14. 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 10/1512:40 pm -
Nonstop0h 57m
Sun 10/187:18 pm -
Nonstop0h 58m
Deal found 9/14![Alaska Airlines logo]()
$287
This Trip.com deal was found by Cheapflights users on 9/15. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1610:59 pm -
Nonstop0h 54m
Mon 10/197:18 pm -
Nonstop0h 58m
Deal found 9/15![Alaska Airlines logo]()
$222
This Priceline deal was found by Cheapflights users on 9/14. 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.
Mon 10/195:40 pm -
Nonstop0h 58m
Sat 10/247:18 pm -
Nonstop0h 58m
Deal found 9/14![Alaska Airlines logo]()
$282
This MakeMyTrip deal was found by Cheapflights users on 9/15. 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 MakeMyTrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/2310:59 pm -
Nonstop0h 54m
Fri 10/302:17 pm -
Nonstop0h 57m
Deal found 9/15![Alaska Airlines logo]()
$258
One-way flights from Seattle to BellinghamSearch for one-way flight options from Seattle to Bellingham. Find affordable one-way fares based on user searches. Data last updated September 19, 2026.
Search for one-way flight options from Seattle to Bellingham. Find affordable one-way fares based on user searches. Data last updated September 19, 2026.
This Priceline deal was found by Cheapflights users on 9/15. 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.
Sat 11/710:50 pm -
Nonstop0h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![Alaska Airlines logo]()
$139
This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
Sat 11/712:14 pm -
1 stop20h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![Multiple Airlines logo]()
$142
This Priceline deal was found by Cheapflights users on 9/18. 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 12/45:50 pm -
Nonstop1h 01m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/18![Alaska Airlines logo]()
$144
This Expedia deal was found by Cheapflights users on 9/15. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/135:40 pm -
Nonstop0h 58m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![Alaska Airlines logo]()
$174
This Priceline deal was found by Cheapflights users on 9/17. 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.
Tue 10/205:40 pm -
Nonstop0h 58m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![Alaska Airlines logo]()
$184
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 12/138:55 pm -
1 stop13h 26m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Multiple Airlines logo]()
$190
This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
Tue 10/138:00 pm -
2 stops41h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![Multiple Airlines logo]()
$201
This Kiwi.com deal was found by Cheapflights users on 9/16. 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 10/189:16 pm -
1 stop26h 18m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Multiple Airlines logo]()
$215
This Expedia deal was found by Cheapflights users on 9/16. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1812:40 pm -
Nonstop0h 57m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Alaska Airlines logo]()
$218
Find flight deals from Seattle to Bellingham
Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Bellingham (BLI). 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 September 19, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $217 (Priceline) |
One-way from | $139 (Priceline) |
Popular in | December |
Cheapest in | January |
Average price | $252 |
Cheapflights Fare Finder
Customize your flight search to find flights from Seattle to Bellingham 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 September 19, 2026.
Use the filters below to find and compare flights from Seattle to Bellingham that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
SeattleBellingham
SEA Seattle/Tacoma Intl - BLI Bellingham
SEABLI
Seattle/Tacoma Intl
Tue 10/20
5:40 pm-6:38 pm
Nonstop0h 58m
Bellingham
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$184
SeattleBellingham
SEA Seattle/Tacoma Intl - BLI Bellingham
SEABLI
Seattle/Tacoma Intl
Sun 10/18
9:16 pm-11:34 pm
1 stop26h 18m
Bellingham
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$215
SeattleBellingham
SEA Seattle/Tacoma Intl - BLI Bellingham
SEABLI
Seattle/Tacoma Intl
Tue 10/20
8:00 pm-1:40 pm
2 stops41h 40m
Bellingham
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$229
Quickest round-trip
SeattleBellingham
SEA Seattle/Tacoma Intl - BLI Bellingham
SEABLI
Seattle/Tacoma Intl
Thu 9/24
10:50 pm-11:44 pm
Nonstop0h 54m
Bellingham
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$269
SeattleBellingham
SEA Seattle/Tacoma Intl - BLI Bellingham
SEABLI
Seattle/Tacoma Intl
Sat 10/10
10:59 pm-11:53 pm
Nonstop0h 54m
Bellingham
Wed 10/14
7:18 pm-8:16 pm
Nonstop0h 58m
$297
SeattleBellingham
SEA Seattle/Tacoma Intl - BLI Bellingham
SEABLI
Seattle/Tacoma Intl
Fri 10/16
12:40 pm-1:37 pm
Nonstop0h 57m
Bellingham
Mon 10/19
7:18 pm-8:16 pm
Nonstop0h 58m
$302
SeattleBellingham
SEA Seattle/Tacoma Intl - BLI Bellingham
SEABLI
Seattle/Tacoma Intl
Tue 10/13
6:58 pm-10:35 pm
1 stop3h 37m
Bellingham
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$319
SeattleBellingham
SEA Seattle/Tacoma Intl - BLI Bellingham
SEABLI
Seattle/Tacoma Intl
Wed 10/7
5:58 pm-10:35 pm
1 stop4h 37m
Bellingham
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$319
SeattleBellingham
SEA Seattle/Tacoma Intl - BLI Bellingham
SEABLI
Seattle/Tacoma Intl
Mon 11/30
10:55 pm-11:50 pm
Nonstop0h 55m
Bellingham
Fri 12/4
7:31 pm-8:28 pm
Nonstop0h 57m
$327
SeattleBellingham
SEA Seattle/Tacoma Intl - BLI Bellingham
SEABLI
Seattle/Tacoma Intl
Sun 11/22
8:59 pm-11:59 pm
1 stop3h 00m
Bellingham
Sat 11/28
7:24 pm-8:22 pm
Nonstop0h 58m
$337
Showing 1-10 of 18 resultsSorted by cheapest first
Compare providers for flights from Seattle to Bellingham
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 Seattle to Bellingham in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Seattle-Bellingham flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Bellingham flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Bellingham flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Seattle-Bellingham 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 Seattle-Bellingham 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 Seattle to Bellingham
Have a flexible travel schedule? Discover the best time to fly to Bellingham from Seattle with our price prediction graph.
SEA-BLI
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 Seattle to Bellingham
Prices
Airlines
What is the cheapest time of day to fly from SEA to BLI?
Find hourly flight availability from Seattle to Bellingham. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 19, 2026.
It’s optimal to fly from Seattle to Bellingham in the morning. By choosing this option you can save up to 8% on the cost of your flight, compared to a flight at noon.
How much does it cost to fly round-trip from Seattle to Bellingham?
Airfare is typical for this route at the moment.
Seattle to Bellingham flights typically cost between $201 and $276 in February.The cheapest round-trip price found within the last 5 days was $217 on Alaska Airlines (Feb 24-Feb 27).
Reviews of airlines servicing Bellingham
Get insights into the airlines that provide service to Bellingham. 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 Bellingham. Reviews last updated September 19, 2026.
Read reviews from past customers who have flown Alaska Airlines from Seattle to Bellingham. 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
Entertainment
7.0
Comfort
7.8
Food
7.0
Boarding
8.1
Crew
8.5
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Overall
7.9
Entertainment
7.0
Comfort
7.8
Food
7.0
Boarding
8.1
Crew
8.5
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Related info for your journey
Find useful and relevant information for your journey from Seattle to Bellingham. 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 Bellingham?
Book flights to Bellingham if you plan to visit one of these locationsMount Vernon
Ferndale
Blaine
Browse thousands of different options on Cheapflights for your next trip
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Other flights to Bellingham
Explore flights to Bellingham departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 19, 2026.
Complete your trip
Complete your trip to Bellingham by adding a car rental and/or hotel reservation to your travel itinerary.
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Find flights from Seattle to Bellingham, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Seattle and Bellingham flights
Browse other Seattle and Bellingham flight options. Last updated on September 19, 2026.
Other flights from Seattle
Browse through other flights departing from Seattle. Flights are based on user searches made on Cheapflights and were last updated on September 19, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top airline flying from Seattle to Bellingham
Discover the top airline that operate flights from Seattle to Bellingham. 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 September 19, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$137 | Average$237 | FlexibilityNo cancel fee | On-time75% |