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Bismarck

$239+ Cheap flights from St. Louis to Bismarck (STL - BIS)

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 11/21. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BIS
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
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Cheap flight deals from St. Louis to Bismarck

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Bismarck (BIS). 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 September 16, 2025.

Round-trip from

$259
(American Airlines)

One-way from

$239
(Delta)

Popular in

July

Cheapest in

March

Average price

$358
From Lambert-St Louis to Bismarck
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One-way flight from Lambert-St Louis to Bismarck
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Highest demand for flights based on searches. 13% potential increase in price ($55 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($12 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from St. Louis to Bismarck

Cheapest flights from St. Louis to Bismarck
Explore the most affordable flight options available from St. Louis to Bismarck. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2025.

This American Airlines deal was found by Cheapflights users on 9/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/303:59 pmSTL - BIS
1 stop6h 27mAmerican Airlines
Sat 10/41:48 pmBIS - STL
1 stop6h 44mAmerican Airlines
Deal found 9/15$259
This Delta deal was found by Cheapflights users on 9/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/196:00 amSTL - BIS
1 stop4h 37mDelta
Mon 9/225:32 pmBIS - STL
1 stop5h 37mDelta
Deal found 9/14$324
This American Airlines deal was found by Cheapflights users on 9/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/198:23 amSTL - BIS
2 stops14h 03mAmerican Airlines
Mon 9/221:48 pmBIS - STL
1 stop6h 37mAmerican Airlines
Deal found 9/14$344
This United Airlines deal was found by Cheapflights users on 9/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/131:35 pmSTL - BIS
1 stop7h 23mUnited Airlines
Thu 1/11:49 pmBIS - STL
1 stop8h 33mUnited Airlines
Deal found 9/14$472
This United Airlines deal was found by Cheapflights users on 9/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/149:00 amSTL - BIS
1 stop14h 08mUnited Airlines
Thu 1/11:49 pmBIS - STL
1 stop8h 33mUnited Airlines
Deal found 9/15$552
This American Airlines deal was found by Cheapflights users on 9/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/146:00 amSTL - BIS
1 stop6h 21mAmerican Airlines
Thu 1/16:00 amBIS - STL
2 stops10h 41mAmerican Airlines
Deal found 9/15$577
This American Airlines deal was found by Cheapflights users on 9/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/138:41 amSTL - BIS
2 stops13h 37mAmerican Airlines
Thu 1/12:39 pmBIS - STL
2 stops17h 56mAmerican Airlines
Deal found 9/14$645

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Bismarck 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 September 16, 2025.
Use the filters below to find and compare flights from St. Louis to Bismarck that are best for you.

Fly from

St. Louis

Fly to

Bismarck

Route

Depart

Return

Price

St. LouisBismarck

STL - BIS

STLBIS

Lambert-St Louis

Tue 9/30

3:59 pm-10:26 pm

1 stop6h 27m

Bismarck

Sat 10/4

1:48 pm-8:32 pm

1 stop6h 44m

$259

St. LouisBismarck

STL - BIS

STLBIS

Lambert-St Louis

Fri 9/19

6:00 am-10:37 am

1 stop4h 37m

Bismarck

Mon 9/22

5:32 pm-11:09 pm

1 stop5h 37m

$324

St. LouisBismarck

STL - BIS

STLBIS

Lambert-St Louis

Fri 9/19

8:23 am-10:26 pm

2 stops14h 03m

Bismarck

Mon 9/22

1:48 pm-8:25 pm

1 stop6h 37m

$344

St. LouisBismarck

STL - BIS

STLBIS

Lambert-St Louis

Sat 12/13

1:35 pm-8:58 pm

1 stop7h 23m

Bismarck

Thu 1/1

1:49 pm-10:22 pm

1 stop8h 33m

$472

St. LouisBismarck

STL - BIS

STLBIS

Lambert-St Louis

Sun 12/14

9:00 am-11:08 pm

1 stop14h 08m

Bismarck

Thu 1/1

1:49 pm-10:22 pm

1 stop8h 33m

$552

St. LouisBismarck

STL - BIS

STLBIS

Lambert-St Louis

Sun 12/14

6:00 am-12:21 pm

1 stop6h 21m

Bismarck

Thu 1/1

6:00 am-4:41 pm

2 stops10h 41m

$577

St. LouisBismarck

STL - BIS

STLBIS

Lambert-St Louis

Fri 11/21

6:00 am-12:40 pm

1 stop6h 40m

$239

St. LouisBismarck

STL - BIS

STLBIS

Lambert-St Louis

Fri 11/21

8:39 am-10:23 pm

2 stops13h 44m

$344

St. LouisBismarck

STL - BIS

STLBIS

Lambert-St Louis

Fri 11/21

6:15 am-8:51 pm

3 stops14h 36m

$1,150

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

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

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

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

Currently, August is the cheapest month in which you can book a flight from St. Louis to Bismarck (average of $346). Flying from St. Louis to Bismarck in June is currently the most expensive (average of $425). 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.

What is the cheapest time of day to fly from STL to BIS?

Find hourly flight availability from St. Louis to Bismarck. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 16, 2025.

A simple way to save on the total cost of your ticket is to fly from St. Louis to Bismarck at noon. If you’re flexible enough to do this you can expect to save up to 33% on your trip compared to booking a flight in the morning.

Reviews of airlines servicing Bismarck

Get insights into the airlines that provide service to Bismarck. 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 Bismarck. Reviews last updated September 16, 2025.
Read through reviews of airlines operating flights from St. Louis to Bismarck, such as Delta, United Airlines, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,957 reviews

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

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
7,957 reviews
Delta
8.0
Very good
7,957 reviews

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

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
8,924 reviews
Delta
8.0
Very good
7,957 reviews

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

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
7,957 reviews

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

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 St. Louis to Bismarck. 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 St. Louis to Bismarck?

    There are many flights that can get you from St. Louis to Bismarck in 4h 37m. Fly via American Airlines or Delta to get the fastest option. The distance from St. Louis to Bismarck is about 763 mi. This flight may include one or multiple stops.

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

    Currently priced at $223, American Airlines will fly you from St. Louis to Bismarck and back. In addition to American Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and Delta - these airlines can fly you to your destination from $248 and $248, respectively. These flights start at 37% lower than the current average price 3 months from now.

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

    For one-way options, check prices for Delta. According to our data, you can fly for as low as $239. Users have also found prices from $344 and $1,150 on American Airlines and United Airlines, respectively.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from St. Louis to Bismarck 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 St. Louis to Bismarck?

    Currently, August is the cheapest month in which you can book a flight from St. Louis to Bismarck (average of $346). Flying from St. Louis to Bismarck in June is currently the most expensive (average of $425). 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

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Alternative routes for St. Louis to Bismarck

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from St. Louis to Bismarck

Discover the top 3 airlines that operate flights from St. Louis to Bismarck. 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 September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$223Average$323FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$248Average$365FlexibilityNo cancel feeOn-time69%
DeltaCheapest$248Average$333FlexibilityNo cancel feeOn-timeN/A

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