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$249+ Cheap flights from Bismarck to St. Louis (BIS - 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 12/10. Fares are subject to change and may not be available on all flights or dates of travel.
BIS — STL
nov. 28 — déc. 51
ven. 11/28
ven. 12/5
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 octobre 29, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$249
(Delta)

Popular in

October

Cheapest in

May

Average price

$518
Provider with most accurate pricing for Bismarck-Lambert-St Louis flight deals.
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Provider most trusted by Cheapflights users for Bismarck-Lambert-St Louis flights.
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From Bismarck to Lambert-St Louis
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Highest demand for flights based on searches. 14% potential increase in price ($58 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($15 potential savings vs. average RT price).
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Average for round-trip flights in October 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 octobre 29, 2025.

This Delta deal was found by Cheapflights users on 10/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 12/107:25 amBIS - STL
1 stop4h 39mDelta
mer. 12/176:00 amSTL - BIS
1 stop5h 07mDelta
Deal found 10/28$249
This United Airlines deal was found by Cheapflights users on 10/27. 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.
mar. 11/111:56 pmBIS - STL
1 stop7h 58mUnited Airlines
sam. 11/159:00 amSTL - BIS
1 stop7h 26mUnited Airlines
Deal found 10/27$259
This United Airlines deal was found by Cheapflights users on 10/28. 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.
jeu. 12/115:45 amBIS - STL
1 stop6h 54mUnited Airlines
mar. 12/161:35 pmSTL - BIS
1 stop8h 13mUnited Airlines
Deal found 10/28$280
This Delta deal was found by Cheapflights users on 10/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 12/125:36 pmBIS - STL
1 stop5h 53mDelta
mar. 12/166:00 amSTL - BIS
1 stop5h 07mDelta
Deal found 10/28$284
This American Airlines deal was found by Cheapflights users on 10/27. 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.
ven. 12/56:00 amBIS - STL
1 stop6h 32mAmerican Airlines
ven. 12/125:14 amSTL - BIS
1 stop8h 42mAmerican Airlines
Deal found 10/27$299
This American Airlines deal was found by Cheapflights users on 10/27. 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.
mar. 11/116:00 amBIS - STL
1 stop6h 37mAmerican Airlines
sam. 11/156:00 amSTL - BIS
2 stops8h 31mAmerican Airlines
Deal found 10/27$309
This Delta deal was found by Cheapflights users on 10/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 12/105:36 pmBIS - STL
1 stop5h 53mDelta
lun. 12/155:34 pmSTL - BIS
1 stop6h 04mDelta
Deal found 10/28$324
This Delta deal was found by Cheapflights users on 10/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 12/125:00 amBIS - STL
1 stop4h 10mDelta
lun. 12/155:34 pmSTL - BIS
1 stop6h 04mDelta
Deal found 10/28$359
This Delta deal was found by Cheapflights users on 10/27. 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.
jeu. 12/115:36 pmBIS - STL
1 stop5h 53mDelta
lun. 12/155:34 pmSTL - BIS
1 stop6h 04mDelta
Deal found 10/27$399

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 octobre 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

mer. 12/10

5:36 pm-11:29 pm

1 stop5h 53m

Lambert-St Louis

mer. 12/17

6:00 am-11:07 am

1 stop5h 07m

$249

BismarckSt. Louis

BIS - STL

BISSTL

Bismarck

mer. 12/10

5:36 pm-11:29 pm

1 stop5h 53m

Lambert-St Louis

mar. 12/16

12:49 pm-7:54 pm

1 stop7h 05m

$249

BismarckSt. Louis

BIS - STL

BISSTL

Bismarck

sam. 4/4

1:10 pm-4:50 pm

1 stop3h 40m

Lambert-St Louis

mer. 4/8

6:30 am-10:56 am

1 stop4h 26m

$249

BismarckSt. Louis

BIS - STL

BISSTL

Bismarck

mar. 11/11

1:56 pm-9:54 pm

1 stop7h 58m

Lambert-St Louis

sam. 11/15

9:00 am-4:26 pm

1 stop7h 26m

$259

BismarckSt. Louis

BIS - STL

BISSTL

Bismarck

ven. 12/12

5:00 am-9:10 am

1 stop4h 10m

Lambert-St Louis

mer. 12/17

6:00 am-11:07 am

1 stop5h 07m

$284

BismarckSt. Louis

BIS - STL

BISSTL

Bismarck

ven. 12/12

5:36 pm-11:29 pm

1 stop5h 53m

Lambert-St Louis

mar. 12/16

12:49 pm-7:54 pm

1 stop7h 05m

$284

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

Compare providers for flights from Bismarck 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 Bismarck to St. Louis in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*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 Bismarck-St. Louis flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Bismarck-St. Louis flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Bismarck-St. Louis flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Bismarck-St. Louis flights, Cheapflights users trust eDreams the most. eDreams 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 Bismarck-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 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, March is the cheapest month in which you can book a flight from Bismarck to St. Louis (average of $199). Flying from Bismarck to St. Louis in April is currently the most expensive (average of $358). 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.

How much does it cost to fly round-trip from Bismarck to St. Louis?

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 octobre 29, 2025.
Read reviews from past customers who have flown Delta 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
7.9
Good
7,992 reviews

Boarding

8.2

Overall

7.9

Entertainment

7.9

Crew

8.5

Comfort

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Delta
7.9
Good
7,992 reviews
Delta
7.9
Good
7,992 reviews

Boarding

8.2

Overall

7.9

Entertainment

7.9

Crew

8.5

Comfort

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
American Airlines
7.2
Good
11,032 reviews
Delta
7.9
Good
7,992 reviews

Boarding

8.2

Overall

7.9

Entertainment

7.9

Crew

8.5

Comfort

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.

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.

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

    For as low as $249, Delta can have you in St. Louis from Bismarck in 5h 53m. There are 763 mi between Bismarck and St. Louis.

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

    According to our current data, Delta ($248), and American Airlines ($248) offers the cheapest pricing from Bismarck to St. Louis. Delta is priced at 29% lower than the current average price of a flight leaving 3 months from now.

  • 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, March is the cheapest month in which you can book a flight from Bismarck to St. Louis (average of $199). Flying from Bismarck to St. Louis in April is currently the most expensive (average of $358). 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
Edwardsville
O'Fallon
Fairview Heights
Maryland Heights
Collinsville
Eureka
Glencoe
St. Peters
Chesterfield
Alton
Farmington
Festus

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from Bismarck to St. Louis

Discover the top 2 airlines 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 octobre 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$248Average$347FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$248Average$293FlexibilityNo cancel feeOn-time71%

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