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St. Louis

$486+ 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 5/15. Fares are subject to change and may not be available on all flights or dates of travel.
BLI — STL
May 21 — May 281
Thu 5/21
Thu 5/28
1 adult, Economy
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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 April 21, 2026.

This Kiwi.com deal was found by Cheapflights users on 4/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/153:00 pm
BLI
-
STL
2 stops26h 23m
Multiple Airlines
Sun 5/1712:36 pm
STL
-
BLI
1 stop10h 34m
Multiple Airlines
Deal found 4/18$486
This Kiwi.com deal was found by Cheapflights users on 4/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/118:00 am
BLI
-
STL
1 stop10h 23m
Multiple Airlines
Fri 5/154:19 pm
STL
-
BLI
2 stops47h 51m
Multiple Airlines
Deal found 4/19$497
This Alaska Airlines deal was found by Cheapflights users on 4/20. 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 6/15:53 pm
BLI
-
STL
2 stops20h 44m
Alaska Airlines
Thu 6/45:33 pm
STL
-
BLI
1 stop7h 18m
Alaska Airlines
Deal found 4/20$505
This Alaska Airlines deal was found by Cheapflights users on 4/20. 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 5/51:00 pm
BLI
-
STL
1 stop8h 59m
Alaska Airlines
Sat 5/97:00 am
STL
-
BLI
1 stop7h 20m
Alaska Airlines
Deal found 4/20$601
This Alaska Airlines deal was found by Cheapflights users on 4/19. 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.
Mon 5/114:01 pm
BLI
-
STL
2 stops29h 58m
Alaska Airlines
Fri 5/155:33 pm
STL
-
BLI
2 stops32h 34m
Alaska Airlines
Deal found 4/19$644
This Expedia deal was found by Cheapflights users on 4/18. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/152:00 pm
BLI
-
STL
1 stop7h 54m
Alaska Airlines
Sun 5/177:41 pm
STL
-
BLI
1 stop6h 26m
Alaska Airlines
Deal found 4/18$671

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 April 21, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$486
(Kiwi.com)
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 April 21, 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

Fri 5/15

3:00 pm-7:23 pm

2 stops26h 23m

Lambert-St Louis

Sun 5/17

12:36 pm-9:10 pm

1 stop10h 34m

$486

BellinghamSt. Louis

BLI - STL

BLISTL

Bellingham

Mon 6/1

5:53 pm-4:37 pm

2 stops20h 44m

Lambert-St Louis

Thu 6/4

5:33 pm-10:51 pm

1 stop7h 18m

$505
Quickest round-trip

BellinghamSt. Louis

BLI - STL

BLISTL

Bellingham

Tue 5/5

1:00 pm-11:59 pm

1 stop8h 59m

Lambert-St Louis

Sat 5/9

7:00 am-12:20 pm

1 stop7h 20m

$601

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/18

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 April.
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 20h 44m. 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

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