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Bismarck

$339+ Cheap flights from St. Louis to Bismarck (STL - BIS)

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 12/25. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BIS
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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Cheap 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 December 12, 2025.

This Delta deal was found by Cheapflights users on 12/10. 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.
Thu 12/256:05 amSTL - BIS
1 stop4h 33mDelta
Mon 12/295:37 pmBIS - STL
1 stop4h 39mDelta
Deal found 12/10$339
This Delta deal was found by Cheapflights users on 12/10. 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.
Sat 12/135:34 pmSTL - BIS
1 stop6h 04mDelta
Thu 1/17:38 amBIS - STL
1 stop7h 25mDelta
Deal found 12/10$384
This United Airlines deal was found by Cheapflights users on 12/11. 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 stop8h 13mUnited Airlines
Thu 1/18:10 amBIS - STL
1 stop5h 10mUnited Airlines
Deal found 12/11$458
This American Airlines deal was found by Cheapflights users on 12/10. 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 12/138:54 amSTL - BIS
2 stops13h 24mAmerican Airlines
Thu 1/11:01 pmBIS - STL
1 stop6h 30mAmerican Airlines
Deal found 12/10$595
This United Airlines deal was found by Cheapflights users on 12/10. 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.
Thu 12/252:45 pmSTL - BIS
1 stop5h 31mUnited Airlines
Mon 12/298:10 amBIS - STL
2 stops14h 33mUnited Airlines
Deal found 12/10$711

Find 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 December 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$339
(Delta)

Popular in

July

Cheapest in

December

Average price

$248
Provider with most accurate pricing for Lambert-St Louis-Bismarck flight deals.
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Provider most trusted by Cheapflights users for Lambert-St Louis-Bismarck flights.
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From Lambert-St Louis to Bismarck
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($51 potential increase over avg. RT price).
Search Deals
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 December 2025
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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 December 12, 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

Thu 12/25

6:05 am-10:38 am

1 stop4h 33m

Bismarck

Mon 12/29

5:37 pm-10:16 pm

1 stop4h 39m

$339

St. LouisBismarck

STL - BIS

STLBIS

Lambert-St Louis

Wed 1/7

6:00 pm-11:30 pm

1 stop5h 30m

Bismarck

Sat 1/10

1:35 pm-8:58 pm

1 stop7h 23m

$398

St. LouisBismarck

STL - BIS

STLBIS

Lambert-St Louis

Thu 12/25

2:45 pm-8:16 pm

1 stop5h 31m

Bismarck

Mon 12/29

8:10 am-10:43 pm

2 stops14h 33m

$711

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

Compare providers for flights from St. Louis to Bismarck

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 St. Louis to Bismarck in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust 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 St. Louis-Bismarck flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on St. Louis-Bismarck flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from St. Louis-Bismarck flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on St. Louis-Bismarck 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 St. Louis-Bismarck 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 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, March is the cheapest month in which you can book a flight from St. Louis to Bismarck (average of $223). Flying from St. Louis to Bismarck in February is currently the most expensive (average of $478). 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 December 12, 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 32% 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 December 12, 2025.
Read through reviews of airlines operating flights from St. Louis to Bismarck, such as Delta and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,008 reviews

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

Food

7.3

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,008 reviews
Delta
7.9
Good
8,008 reviews

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

Food

7.3

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,050 reviews
Delta
7.9
Good
8,008 reviews

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

Food

7.3

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

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 33m. Fly via Delta or United Airlines 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. Check Cheapflights for deals on Delta for as low as $248. These flights start at 38% lower than the current average price 3 months from now.

  • 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, March is the cheapest month in which you can book a flight from St. Louis to Bismarck (average of $223). Flying from St. Louis to Bismarck in February is currently the most expensive (average of $478). 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 2 airlines flying from St. Louis to Bismarck

Discover the top 2 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 December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$223Average$323FlexibilityNo cancel feeOn-time71%
DeltaCheapest$248Average$338FlexibilityNo cancel feeOn-timeN/A

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