HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
St. Louis

$357+ 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 9/29. Fares are subject to change and may not be available on all flights or dates of travel.
BLI — STL
Jun 18 — Jun 251
Thu 6/18
Thu 6/25
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Bellingham to St. Louis 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 Bellingham to St. Louis

Cheapest flights from Bellingham to St. Louis
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 May 19, 2026.

This Alaska Airlines deal was found by Cheapflights users on 5/18. 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.
Tue 9/297:00 am
BLI
-
STL
1 stop8h 10m
Alaska Airlines
Sat 10/34:40 pm
STL
-
BLI
1 stop9h 13m
Alaska Airlines
Deal found 5/18$357
This Alaska Airlines deal was found by Cheapflights users on 5/18. 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.
Sat 8/158:30 am
BLI
-
STL
1 stop6h 07m
Alaska Airlines
Sat 8/226:08 pm
STL
-
BLI
1 stop6h 23m
Alaska Airlines
Deal found 5/18$427
This Kiwi.com deal was found by Cheapflights users on 5/15. 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.
Sun 5/3110:01 am
BLI
-
STL
2 stops31h 22m
Multiple Airlines
Thu 6/49:06 pm
STL
-
BLI
1 stop13h 58m
Multiple Airlines
Deal found 5/15$514
This Kiwi.com deal was found by Cheapflights users on 5/14. 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.
Fri 5/296:59 pm
BLI
-
STL
1 stop20h 35m
Multiple Airlines
Tue 6/24:19 pm
STL
-
BLI
2 stops42h 55m
Multiple Airlines
Deal found 5/14$526
This Kiwi.com deal was found by Cheapflights users on 5/15. 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.
Mon 7/63:42 pm
BLI
-
STL
2 stops21h 07m
Multiple Airlines
Mon 8/32:52 pm
STL
-
BLI
1 stop8h 52m
Multiple Airlines
Deal found 5/15$527
This Alaska Airlines deal was found by Cheapflights users on 5/14. 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.
Mon 8/247:30 am
BLI
-
STL
1 stop7h 33m
Alaska Airlines
Fri 8/286:00 am
STL
-
BLI
1 stop9h 12m
Alaska Airlines
Deal found 5/14$537
This Alaska Airlines deal was found by Cheapflights users on 5/14. 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 7/98:30 am
BLI
-
STL
1 stop6h 07m
Alaska Airlines
Sun 7/125:37 pm
STL
-
BLI
1 stop6h 53m
Alaska Airlines
Deal found 5/14$547
This Alaska Airlines deal was found by Cheapflights users on 5/14. 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.
Fri 5/295:53 pm
BLI
-
STL
1 stop19h 23m
Alaska Airlines
Tue 6/27:41 pm
STL
-
BLI
1 stop6h 26m
Alaska Airlines
Deal found 5/14$553

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 May 19, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$357
(Alaska Airlines)
Provider with most accurate pricing for Bellingham-Lambert-St Louis flight deals.
Search Deals
Provider most trusted by Cheapflights users for Bellingham-Lambert-St Louis flights.
Search Deals
From Bellingham to Lambert-St Louis
Search Deals

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 May 19, 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

Price

Cheapest round-trip

BellinghamSt. Louis

BLI - STL

BLISTL

Bellingham

Tue 9/29

7:00 am-5:10 pm

1 stop8h 10m

Lambert-St Louis

Sat 10/3

4:40 pm-11:53 pm

1 stop9h 13m

$357

BellinghamSt. Louis

BLI - STL

BLISTL

Bellingham

Sun 5/31

10:01 am-7:23 pm

2 stops31h 22m

Lambert-St Louis

Thu 6/4

9:06 pm-9:04 am

1 stop13h 58m

$514

BellinghamSt. Louis

BLI - STL

BLISTL

Bellingham

Fri 5/29

6:59 pm-5:34 pm

1 stop20h 35m

Lambert-St Louis

Tue 6/2

4:19 pm-9:14 am

2 stops42h 55m

$526

BellinghamSt. Louis

BLI - STL

BLISTL

Bellingham

Mon 7/6

3:42 pm-2:49 pm

2 stops21h 07m

Lambert-St Louis

Mon 8/3

2:52 pm-9:44 pm

1 stop8h 52m

$527

BellinghamSt. Louis

BLI - STL

BLISTL

Bellingham

Sat 8/15

5:26 pm-9:24 am

2 stops13h 58m

Lambert-St Louis

Sat 8/22

6:08 pm-10:31 pm

1 stop6h 23m

$536

BellinghamSt. Louis

BLI - STL

BLISTL

Bellingham

Mon 8/24

7:30 am-5:10 pm

1 stop7h 40m

Lambert-St Louis

Fri 8/28

6:08 pm-10:31 pm

1 stop6h 23m

$537
Quickest round-trip

BellinghamSt. Louis

BLI - STL

BLISTL

Bellingham

Thu 7/9

8:30 am-4:37 pm

1 stop6h 07m

Lambert-St Louis

Sun 7/12

5:37 pm-10:30 pm

1 stop6h 53m

$547

BellinghamSt. Louis

BLI - STL

BLISTL

Bellingham

Fri 5/29

5:53 pm-3:16 pm

1 stop19h 23m

Lambert-St Louis

Tue 6/2

7:41 pm-12:07 am

1 stop6h 26m

$553

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/18

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 May.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy1 starTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • 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.
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.

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.

  • How long is the flight from Bellingham to St. Louis?

    Airlines like Alaska Airlines fly from Bellingham to St. Louis in about 8h 10m. The time it takes to get you to your destination can typically vary by up to . The distance between Bellingham and St. Louis is about 1731 mi.

  • Can I find deals for flights from Bellingham to St. Louis that include hotel bookings?

    Yes. In addition to deals on Bellingham to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Bellingham to St. Louis?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Bellingham to St. Louis.

  • Can I find deals for business class flights from Bellingham to St. Louis?

    Yes. Cheapflights offers flight deals from Bellingham to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Edwardsville
O'Fallon
Fenton
Swansea
Fairview Heights
Maryland Heights
Collinsville
Eureka
Wentzville
Glencoe
Chesterfield
Alton
Farmington
Festus

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.