$363+ Cheap flights from Bellingham to St. Louis (BLI - STL)
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 9/11. Fares are subject to change and may not be available on all flights or dates of travel.
BLI — STL
Aug 31 — Sep 71
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
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 Bellingham to St. Louis
Cheapest
Best
Last-minute
Cheapest flights from Bellingham to St. LouisExplore the most affordable flight options available from Bellingham to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 1, 2026.
Explore the most affordable flight options available from Bellingham to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 1, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/112:01 pm
BLI
- STL
2 stops27h 16m
Multiple Airlines
Fri 9/1812:12 pm
STL
- BLI
1 stop10h 00m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$363
This Alaska Airlines deal was found by Cheapflights users on 7/29. 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.
Tue 10/62:17 pm
BLI
- STL
1 stop7h 42m
Alaska Airlines
Wed 10/77:02 am
STL
- BLI
1 stop8h 35m
Alaska Airlines
Deal found 7/29![Alaska Airlines logo]()
$515
This Alaska Airlines deal was found by Cheapflights users on 7/28. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/117:00 am
BLI
- STL
2 stops29h 21m
Alaska Airlines
Fri 9/186:29 am
STL
- BLI
2 stops18h 02m
Alaska Airlines
Deal found 7/28![Alaska Airlines logo]()
$578
This Expedia deal was found by Cheapflights users on 7/29. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/75:26 pm
BLI
- STL
1 stop18h 26m
Alaska Airlines
Mon 8/102:50 pm
STL
- BLI
1 stop11h 09m
Alaska Airlines
Deal found 7/29![Alaska Airlines logo]()
$635
Best flights from Bellingham to St. LouisDiscover carefully curated flight deals from Bellingham to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 1, 2026.
Discover carefully curated flight deals from Bellingham to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 1, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/112:01 pm
BLI
- STL
2 stops27h 16m
Multiple Airlines
Fri 9/1812:12 pm
STL
- BLI
1 stop10h 00m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$363
This Alaska Airlines deal was found by Cheapflights users on 7/30. 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 10/62:17 pm
BLI
- STL
1 stop7h 42m
Alaska Airlines
Wed 10/77:02 am
STL
- BLI
1 stop8h 35m
Alaska Airlines
Deal found 7/30![Alaska Airlines logo]()
$515
Last-minute flights from Bellingham to St. LouisDiscover last-minute flight deals from Bellingham to St. Louis. Data last updated August 1, 2026 and is based on user searches.
Discover last-minute flight deals from Bellingham to St. Louis. Data last updated August 1, 2026 and is based on user searches.
This Expedia deal was found by Cheapflights users on 7/29. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/75:26 pm
BLI
- STL
1 stop18h 26m
Alaska Airlines
Mon 8/102:50 pm
STL
- BLI
1 stop11h 09m
Alaska Airlines
Deal found 7/29![Alaska Airlines logo]()
$635
This Alaska Airlines deal was found by Cheapflights users on 7/29. 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.
Thu 8/131:49 pm
BLI
- STL
1 stop8h 10m
Alaska Airlines
Thu 8/207:36 pm
STL
- BLI
1 stop25h 03m
Alaska Airlines
Deal found 7/29![Alaska Airlines logo]()
$779
Find flight deals from Bellingham to St. Louis
Discover tips and strategies to find the most affordable flight options for your journey from Bellingham (BLI) to St. Louis (STL). 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 1, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $363 (Kiwi.com) |
Cheapflights Fare Finder
Customize your flight search to find flights from Bellingham to St. Louis 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 1, 2026.
Use the filters below to find and compare flights from Bellingham to St. Louis that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BellinghamSt. Louis
BLI - STL
BLISTL
Bellingham
Fri 9/11
2:01 pm-7:17 pm
2 stops27h 16m
Lambert-St Louis
Fri 9/18
12:12 pm-8:12 pm
1 stop10h 00m
$363
Quickest round-trip
BellinghamSt. Louis
BLI - STL
BLISTL
Bellingham
Tue 10/6
2:17 pm-11:59 pm
1 stop7h 42m
Lambert-St Louis
Wed 10/7
7:02 am-1:37 pm
1 stop8h 35m
$515
Sorted by cheapest first
Compare providers for flights from Bellingham to St. Louis
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 St. Louis in August.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Bellingham-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Bellingham-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Bellingham-St. Louis flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Bellingham-St. Louis 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-St. Louis 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 St. Louis
Have a flexible travel schedule? Discover the best time to fly to St. Louis from Bellingham with our price prediction graph.
BLI-STL
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.
Reviews of airlines servicing St. Louis
Get insights into the airlines that provide service to St. Louis. 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 St. Louis. Reviews last updated August 1, 2026.
See what other customers who have flown with Alaska Airlines from Bellingham to St. Louis have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.8
Crew
8.5
Overall
7.9
Boarding
8.1
Entertainment
7.0
Food
7.0
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Comfort
7.8
Crew
8.5
Overall
7.9
Boarding
8.1
Entertainment
7.0
Food
7.0
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Related info for your journey
Find useful and relevant information for your journey from Bellingham to St. Louis. 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 St. Louis?
Book flights to St. Louis if you plan to visit one of these locationsEdwardsville
O'Fallon
Fenton
Swansea
Fairview Heights
Eureka
Maryland Heights
Collinsville
Wentzville
Glencoe
Chesterfield
Farmington
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Top airline flying from Bellingham to St. Louis
Discover the top airline that operate flights from Bellingham to St. Louis. 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 1, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$320 | Average$655 | FlexibilityNo cancel fee | On-time75% |