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$241+ Cheap flights from Bismarck to St. Louis (BIS - STL)

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 9/8. Fares are subject to change and may not be available on all flights or dates of travel.
BIS — STL
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
1 adult, Economy
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Cheap flight deals from Bismarck to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Bismarck (BIS) 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 July 29, 2025.

Round-trip from

$249
(Delta)

One-way from

$241
(KAYAK)

Popular in

January

Cheapest in

May

Average price

$283
From Bismarck to Lambert-St Louis
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One-way flight from Bismarck to Lambert-St Louis
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Highest demand for flights based on searches. 8% potential increase in price ($29 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Bismarck to St. Louis

Cheapest flights from Bismarck to St. Louis
Explore the most affordable flight options available from Bismarck to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

This Delta deal was found by Cheapflights users on 7/26. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/245:00 amBIS - STL
1 stop3h 36mDelta
Sun 8/316:00 amSTL - BIS
1 stop5h 34mDelta
Deal found 7/26$249
This American Airlines deal was found by Cheapflights users on 7/26. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/242:59 pmBIS - STL
2 stops8h 56mAmerican Airlines
Sun 8/316:00 amSTL - BIS
1 stop6h 52mAmerican Airlines
Deal found 7/26$254
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/122:00 pmBIS - STL
1 stop6h 45mUnited Airlines
Sat 8/165:15 amSTL - BIS
1 stop5h 19mUnited Airlines
Deal found 7/28$259

Cheapflights Fare Finder

 
Customize your flight search to find flights from Bismarck 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 July 29, 2025.
Use the filters below to find and compare flights from Bismarck to St. Louis that are best for you.

Fly from

Bismarck

Fly to

St. Louis

Route

Depart

Return

Price

BismarckSt. Louis

BIS - STL

BISSTL

Bismarck

Sun 8/24

5:00 am-8:36 am

1 stop3h 36m

Lambert-St Louis

Sun 8/31

6:00 am-11:34 am

1 stop5h 34m

$249

BismarckSt. Louis

BIS - STL

BISSTL

Bismarck

Sun 8/24

2:59 pm-11:55 pm

2 stops8h 56m

Lambert-St Louis

Sun 8/31

6:00 am-12:52 pm

1 stop6h 52m

$254

BismarckSt. Louis

BIS - STL

BISSTL

Bismarck

Tue 8/12

2:00 pm-8:45 pm

1 stop6h 45m

Lambert-St Louis

Sat 8/16

5:15 am-10:34 am

1 stop5h 19m

$259

BismarckSt. Louis

BIS - STL

BISSTL

Bismarck

Mon 9/8

5:42 pm-11:24 pm

1 stop5h 42m

$241

BismarckSt. Louis

BIS - STL

BISSTL

Bismarck

Fri 8/1

6:00 am-12:46 pm

1 stop6h 46m

$254

BismarckSt. Louis

BIS - STL

BISSTL

Bismarck

Fri 8/1

6:19 am-7:08 pm

2 stops12h 49m

$412

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Best time to book a flight from Bismarck to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Bismarck 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.

Cheapflights Insights

Everything you need to know about your flight from Bismarck to St. Louis

What is the cheapest month to book a flight from Bismarck to St. Louis?

Currently, August is the cheapest month in which you can book a flight from Bismarck to St. Louis (average of $311). Flying from Bismarck to St. Louis in March is currently the most expensive (average of $356). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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 July 29, 2025.
Read reviews from past customers who have flown Delta, United Airlines, and American Airlines from Bismarck to St. Louis. 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.
Delta
8.0
Very good
7,979 reviews

Food

7.3

Comfort

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,979 reviews
Delta
8.0
Very good
7,979 reviews

Food

7.3

Comfort

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,896 reviews
Delta
8.0
Very good
7,979 reviews

Food

7.3

Comfort

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,979 reviews

Food

7.3

Comfort

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Bismarck to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Bismarck to St. Louis round-trip?

    According to our current data, Delta ($249), American Airlines ($254), and United Airlines ($259) offers the cheapest pricing from Bismarck to St. Louis. Delta is priced at 19% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Bismarck to St. Louis one-way?

    To fly one-way, consider booking your trip with Delta, which is currently one of the cheapest options available, starting at $241. United Airlines flights start at $254 while deals on American Airlines start at $412 one-way.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Bismarck 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.

  • What is the cheapest month to book a flight from Bismarck to St. Louis?

    Currently, August is the cheapest month in which you can book a flight from Bismarck to St. Louis (average of $311). Flying from Bismarck to St. Louis in March is currently the most expensive (average of $356). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near St. Louis?

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

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Bismarck to St. Louis

Discover the top airline that operate flights from Bismarck 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 July 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$228Average$318FlexibilityNo cancel feeOn-timeN/A

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