$122+ Cheap flights from Seattle to Bellingham (SEA - BLI)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/7. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BLI
Sep 11 — Sep 181
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
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Best
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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 August 12, 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 August 12, 2026.
This Trip.com deal was found by Cheapflights users on 8/10. 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.
Wed 9/910:50 pm -
Nonstop0h 54m
Wed 9/167:26 pm -
Nonstop0h 59m
Deal found 8/10![Alaska Airlines logo]()
$215
This Alaska Airlines deal was found by Cheapflights users on 8/10. 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 10/3110:59 pm -
Nonstop0h 54m
Sun 11/15:14 am -
Nonstop0h 56m
Deal found 8/10![Alaska Airlines logo]()
$222
This Trip.com deal was found by Cheapflights users on 8/11. 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.
Thu 9/1010:50 pm -
Nonstop0h 54m
Sun 9/137:26 pm -
Nonstop0h 59m
Deal found 8/11![Alaska Airlines logo]()
$223
This Priceline deal was found by Cheapflights users on 8/11. 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 9/1010:50 pm -
Nonstop0h 54m
Sun 9/207:26 pm -
Nonstop0h 59m
Deal found 8/11![Alaska Airlines logo]()
$227
This Alaska Airlines deal was found by Cheapflights users on 8/7. 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 9/1910:50 pm -
Nonstop0h 54m
Fri 9/257:26 pm -
Nonstop0h 59m
Deal found 8/7![Alaska Airlines logo]()
$257
This Alaska Airlines deal was found by Cheapflights users on 8/10. 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 9/311:00 pm -
Nonstop0h 59m
Mon 9/77:19 pm -
Nonstop0h 59m
Deal found 8/10![Alaska Airlines logo]()
$267
This Kiwi.com deal was found by Cheapflights users on 8/11. 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.
Thu 9/1010:53 am -
2 stops26h 18m
Sun 9/204:59 pm -
1 stop16h 43m
Deal found 8/11![Multiple Airlines logo]()
$268
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 August 12, 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 August 12, 2026.
This Alaska Airlines deal was found by Cheapflights users on 8/8. 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 10/3110:59 pm -
Nonstop0h 54m
Sun 11/15:14 am -
Nonstop0h 56m
Deal found 8/8![Alaska Airlines logo]()
$222
This Trip.com deal was found by Cheapflights users on 8/11. 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.
Thu 9/1010:50 pm -
Nonstop0h 54m
Sun 9/137:26 pm -
Nonstop0h 59m
Deal found 8/11![Alaska Airlines logo]()
$223
This Alaska Airlines deal was found by Cheapflights users on 8/7. 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 9/1910:50 pm -
Nonstop0h 54m
Fri 9/257:26 pm -
Nonstop0h 59m
Deal found 8/7![Alaska Airlines logo]()
$257
This Booking.com deal was found by Cheapflights users on 8/7. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/511:00 pm -
Nonstop0h 59m
Sun 9/65:26 am -
Nonstop0h 54m
Deal found 8/7![Alaska Airlines logo]()
$297
This Priceline deal was found by Cheapflights users on 8/7. 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 9/56:51 pm -
1 stop3h 40m
Sat 9/127:26 pm -
Nonstop0h 59m
Deal found 8/7![Alaska Airlines logo]()
$307
This Alaska Airlines deal was found by Cheapflights users on 8/11. 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 10/108:40 am -
1 stop13h 55m
Wed 10/147:18 pm -
Nonstop0h 58m
Deal found 8/11![Alaska Airlines logo]()
$315
This Priceline deal was found by Cheapflights users on 8/7. 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 8/2811:00 pm -
Nonstop0h 59m
Sat 8/291:52 pm -
Nonstop0h 59m
Deal found 8/7![Alaska Airlines logo]()
$347
This Alaska Airlines deal was found by Cheapflights users on 8/11. 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 9/215:47 pm -
Nonstop0h 59m
Tue 9/227:26 pm -
Nonstop0h 59m
Deal found 8/11![Alaska Airlines logo]()
$347
Last-minute flights from Seattle to BellinghamDiscover last-minute flight deals from Seattle to Bellingham. Data last updated August 12, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Bellingham. Data last updated August 12, 2026 and is based on user searches.
This Alaska Airlines deal was found by Cheapflights users on 8/10. 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 9/311:00 pm -
Nonstop0h 59m
Mon 9/77:19 pm -
Nonstop0h 59m
Deal found 8/10![Alaska Airlines logo]()
$267
This Trip.com deal was found by Cheapflights users on 8/10. 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.
Wed 9/910:50 pm -
Nonstop0h 54m
Wed 9/167:26 pm -
Nonstop0h 59m
Deal found 8/10![Alaska Airlines logo]()
$215
This Trip.com deal was found by Cheapflights users on 8/12. 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.
Thu 9/1010:50 pm -
Nonstop0h 54m
Sun 9/137:26 pm -
Nonstop0h 59m
Deal found 8/12![Alaska Airlines logo]()
$222
This Priceline deal was found by Cheapflights users on 8/11. 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 9/1010:50 pm -
Nonstop0h 54m
Sun 9/207:26 pm -
Nonstop0h 59m
Deal found 8/11![Alaska Airlines logo]()
$227
This Kiwi.com deal was found by Cheapflights users on 8/11. 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.
Thu 9/1010:53 am -
2 stops26h 18m
Sun 9/204:59 pm -
1 stop16h 43m
Deal found 8/11![Multiple Airlines logo]()
$268
This Alaska Airlines deal was found by Cheapflights users on 8/7. 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 9/1910:50 pm -
Nonstop0h 54m
Fri 9/257:26 pm -
Nonstop0h 59m
Deal found 8/7![Alaska Airlines logo]()
$257
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 August 12, 2026.
Search for one-way flight options from Seattle to Bellingham. Find affordable one-way fares based on user searches. Data last updated August 12, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/7. 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.
Wed 10/79:45 pm -
1 stop15h 55m
Deal found 8/7![Multiple Airlines logo]()
$122
This Kiwi.com deal was found by Cheapflights users on 8/8. 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.
Wed 9/239:45 pm -
1 stop15h 56m
Deal found 8/8![Multiple Airlines logo]()
$123
This Kiwi.com deal was found by Cheapflights users on 8/11. 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 9/228:15 pm -
2 stops41h 26m
Deal found 8/11![Multiple Airlines logo]()
$128
This Priceline deal was found by Cheapflights users on 8/11. 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 9/2210:50 pm -
Nonstop0h 54m
Deal found 8/11![Alaska Airlines logo]()
$144
This Kiwi.com deal was found by Cheapflights users on 8/10. 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.
Thu 9/249:45 pm -
1 stop15h 26m
Deal found 8/10![Multiple Airlines logo]()
$145
This Priceline deal was found by Cheapflights users on 8/11. 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 9/311:00 pm -
Nonstop0h 59m
Deal found 8/11![Alaska Airlines logo]()
$164
This Trip.com deal was found by Cheapflights users on 8/8. 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.
Wed 9/2310:50 pm -
Nonstop0h 54m
Deal found 8/8![Alaska Airlines logo]()
$176
This Kiwi.com deal was found by Cheapflights users on 8/11. 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.
Thu 9/39:29 pm -
1 stop25h 56m
Deal found 8/11![Multiple Airlines logo]()
$185
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 August 12, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $215 (Trip.com) |
One-way from | $122 (Kiwi.com) |
Popular in | December |
Cheapest in | September |
Average price | $263 |
Good round-trip deal | $197 or less |
Good one-way deal | $268 or less |
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 2,558,603 searches. Data last updated August 12, 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
Quickest round-trip
SeattleBellingham
SEA Seattle/Tacoma Intl - BLI Bellingham
SEABLI
Seattle/Tacoma Intl
Sat 10/31
10:59 pm-11:53 pm
Nonstop0h 54m
Bellingham
Sun 11/1
5:14 am-6:10 am
Nonstop0h 56m
$222
SeattleBellingham
SEA Seattle/Tacoma Intl - BLI Bellingham
SEABLI
Seattle/Tacoma Intl
Thu 9/10
10:50 pm-11:44 pm
Nonstop0h 54m
Bellingham
Sun 9/13
7:26 pm-8:25 pm
Nonstop0h 59m
$223
SeattleBellingham
SEA Seattle/Tacoma Intl - BLI Bellingham
SEABLI
Seattle/Tacoma Intl
Sat 9/19
10:50 pm-11:44 pm
Nonstop0h 54m
Bellingham
Fri 9/25
7:26 pm-8:25 pm
Nonstop0h 59m
$257
SeattleBellingham
SEA Seattle/Tacoma Intl - BLI Bellingham
SEABLI
Seattle/Tacoma Intl
Sat 9/5
11:00 pm-11:59 pm
Nonstop0h 59m
Bellingham
Sun 9/6
5:26 am-6:20 am
Nonstop0h 54m
$297
SeattleBellingham
SEA Seattle/Tacoma Intl - BLI Bellingham
SEABLI
Seattle/Tacoma Intl
Sat 9/5
6:51 pm-10:31 pm
1 stop3h 40m
Bellingham
Sat 9/12
7:26 pm-8:25 pm
Nonstop0h 59m
$307
SeattleBellingham
SEA Seattle/Tacoma Intl - BLI Bellingham
SEABLI
Seattle/Tacoma Intl
Sat 10/10
8:40 am-10:35 pm
1 stop13h 55m
Bellingham
Wed 10/14
7:18 pm-8:16 pm
Nonstop0h 58m
$315
SeattleBellingham
SEA Seattle/Tacoma Intl - BLI Bellingham
SEABLI
Seattle/Tacoma Intl
Fri 8/28
11:00 pm-11:59 pm
Nonstop0h 59m
Bellingham
Sat 8/29
1:52 pm-2:51 pm
Nonstop0h 59m
$347
SeattleBellingham
SEA Seattle/Tacoma Intl - BLI Bellingham
SEABLI
Seattle/Tacoma Intl
Mon 9/21
5:47 pm-6:46 pm
Nonstop0h 59m
Bellingham
Tue 9/22
7:26 pm-8:25 pm
Nonstop0h 59m
$347
Cheapest one-way
SeattleBellingham
SEA Seattle/Tacoma Intl - BLI Bellingham
SEABLI
Seattle/Tacoma Intl
Wed 10/7
9:45 pm-1:40 pm
1 stop15h 55m
$122
SeattleBellingham
SEA Seattle/Tacoma Intl - BLI Bellingham
SEABLI
Seattle/Tacoma Intl
Wed 9/23
9:45 pm-1:41 pm
1 stop15h 56m
$123
Showing 1-10 of 19 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 August.
| 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 August 12, 2026.
It’s optimal to fly from Seattle to Bellingham at noon. By choosing this option you can save up to 8% on the cost of your flight, compared to a flight in the afternoon.
How much does it cost to fly round-trip from Seattle to Bellingham?
Airfare is below average for this route at the moment.
Seattle to Bellingham flights typically cost between $237 and $432 in September.The cheapest round-trip price found within the last 5 days was $215 on Alaska Airlines (Sep 9-Sep 16).
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 August 12, 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.
Boarding
8.1
Overall
7.9
Entertainment
7.0
Food
7.0
Crew
8.5
Comfort
7.8
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Boarding
8.1
Overall
7.9
Entertainment
7.0
Food
7.0
Crew
8.5
Comfort
7.8
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
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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 August 12, 2026.
Complete your trip
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Seattle and Bellingham flights
Browse other Seattle and Bellingham flight options. Last updated on August 12, 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 August 12, 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 2,558,603 searches. Data last updated August 12, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$137 | Average$237 | FlexibilityNo cancel fee | On-time75% |