$239 Cheap Flights from St. Louis (STL) to Bismarck (BIS)

View $239 flight on Tue, Apr 7, 2026Opens in a new window

Popular airlines from St. Louis Lambert Intl. Airport (STL) to Bismarck, ND (BIS-Bismarck Municipal)

  • notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
  • deals illustration

    Book smarter

    Save up to 30% on select hotels after you book a flight*
  • trophy illustration

    Earn twice

    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

Cheap Flights from St. Louis to Bismarck (STL-BIS)

Prices were available within the past 7 days and start at $239 for one-way flights and $249 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, Apr 21 - Sat, Apr 25
STL
St. Louis
BIS
Bismarck
$249 Roundtrip, found 1 hour ago
$249
Roundtrip
found 1 hour ago
Select Delta flight, departing Tue, Apr 21 from St. Louis to Bismarck, returning Sat, Apr 25, priced at $249 found 1 hour ago
Delta
Thu, Apr 23 - Sat, Apr 25
STL
St. Louis
BIS
Bismarck
$264 Roundtrip, found 1 hour ago
$264
Roundtrip
found 1 hour ago
Select Delta flight, departing Thu, Apr 23 from St. Louis to Bismarck, returning Sat, Apr 25, priced at $264 found 1 hour ago
Delta
Wed, Nov 26 - Mon, Dec 1
STL
St. Louis
BIS
Bismarck
$274 Roundtrip, found 2 days ago
$274
Roundtrip
found 2 days ago
Select Delta flight, departing Wed, Nov 26 from St. Louis to Bismarck, returning Mon, Dec 1, priced at $274 found 2 days ago
Delta
Thu, Apr 23 - Thu, Apr 30
STL
St. Louis
BIS
Bismarck
$279 Roundtrip, found 1 hour ago
$279
Roundtrip
found 1 hour ago
Select Delta flight, departing Thu, Apr 23 from St. Louis to Bismarck, returning Thu, Apr 30, priced at $279 found 1 hour ago
United
Fri, Dec 12 - Mon, Dec 15
STL
St. Louis
BIS
Bismarck
$288 Roundtrip, found 20 hours ago
$288
Roundtrip
found 20 hours ago
Select United flight, departing Fri, Dec 12 from St. Louis to Bismarck, returning Mon, Dec 15, priced at $288 found 20 hours ago
Delta
Mon, Nov 24 - Tue, Dec 2
STL
St. Louis
BIS
Bismarck
$289 Roundtrip, found 2 days ago
$289
Roundtrip
found 2 days ago
Select Delta flight, departing Mon, Nov 24 from St. Louis to Bismarck, returning Tue, Dec 2, priced at $289 found 2 days ago
United
Fri, Dec 12 - Mon, Dec 15
STL
St. Louis
BIS
Bismarck
$297 Roundtrip, found 20 hours ago
$297
Roundtrip
found 20 hours ago
Select United flight, departing Fri, Dec 12 from St. Louis to Bismarck, returning Mon, Dec 15, priced at $297 found 20 hours ago
Delta
Wed, Nov 26 - Tue, Dec 2
STL
St. Louis
BIS
Bismarck
$299 Roundtrip, found 2 days ago
$299
Roundtrip
found 2 days ago
Select Delta flight, departing Wed, Nov 26 from St. Louis to Bismarck, returning Tue, Dec 2, priced at $299 found 2 days ago
Delta
Thu, Nov 13 - Thu, Nov 20
STL
St. Louis
BIS
Bismarck
$309 Roundtrip, found 1 day ago
$309
Roundtrip
found 1 day ago
Select Delta flight, departing Thu, Nov 13 from St. Louis to Bismarck, returning Thu, Nov 20, priced at $309 found 1 day ago
American Airlines
Tue, Nov 18 - Thu, Nov 27
STL
St. Louis
BIS
Bismarck
$334 Roundtrip, found 3 days ago
$334
Roundtrip
found 3 days ago
Select American Airlines flight, departing Tue, Nov 18 from St. Louis to Bismarck, returning Thu, Nov 27, priced at $334 found 3 days ago

Find the cheapest month to fly from St. Louis (STL) to Bismarck (BIS)

April is typically the cheapest month to fly

From $207 - $574 per traveler.

Alternative airports near Bismarck

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Bismarck Municipal BIS. Cheapest and Closest option available. Average driving time to city center is 6 minutes. Flights from $264
BIS
Bismarck Municipal
CheapestClosest
Average driving time to city center6 min
Flights from $264

Frequently asked questions

How much does a flight from Lambert-St. Louis Intl. Airport (STL) to Bismarck Municipal Airport (BIS) cost?
Lock in a cheap one-way flight from $239 or cheap return flight from $249 from Lambert-St. Louis Intl. Airport (STL) to Bismarck Municipal Airport (BIS) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Lambert-St. Louis Intl. Airport (STL) to Bismarck Municipal Airport (BIS)?
April is the most affordable month to fly from STL to BIS. Timing your trip outside of the busy season is often the key to finding better fares.
What is the cheapest airline that flies from Lambert-St. Louis Intl. Airport (STL) to Bismarck Municipal Airport (BIS)?
Expedia's filter tool lets you easily compare airlines, flight times and fares all in one place. Customize the search to your preferences, then sort by "Price (lowest to highest)" to find the carrier with the cheapest STL to BIS flight.
How many flights per day from Lambert-St. Louis Intl. Airport (STL) to Bismarck Municipal Airport (BIS)?
You'll need to take a flight with a layover when traveling from Lambert-St. Louis Intl. Airport (STL) to Bismarck Municipal Airport (BIS). Direct flights don't operate daily on this route. However, simply filter your search to include one or more stops to discover the best option for your trip.
What day of the week has the most flights from STL to BIS?
You'll typically find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Lambert-St. Louis Intl. Airport (STL) to Bismarck Municipal Airport (BIS)?
To arrive at Bismarck Municipal Airport (BIS) without delays, pick a flight that takes off from Lambert-St. Louis Intl. Airport (STL) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Lambert-St. Louis Intl. Airport (STL) to Bismarck Municipal Airport (BIS) last-minute?
Booking your plane ticket from STL to BIS right before your getaway is generally more expensive. But if there's some wiggle room with your schedule, you could score a cheap last-minute fare.
Is it cheaper to book a STL to BIS flight and hotel package?
Booking a STL to BIS flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels in one place. Choose from our wide range of stays and then add car rentals, flights and activities to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Lambert-St. Louis Intl. Airport (STL) to Bismarck Municipal Airport (BIS)?
If you booked your STL to BIS flight within the last 24 hours, you may be able to modify or cancel it without fees. Depending on the airline and the fare type you purchased, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal if you'd like more information.

Travel information

Origin airport
Lambert-St. Louis Intl.
Destination airport
Bismarck Municipal
Airlines serving
American Airlines, Delta, United
Roundtrip price
$248
Distance
764 mi

Book with confidence

St. Louis to Bismarck Flights

The cheapest times to fly from St. Louis to Bismarck

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from St. Louis to Bismarck are during the month of April. You can find some of the cheapest flights from St. Louis to Bismarck with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from St. Louis to Bismarck

Sunday is one of the best days to book for cheap flights from St. Louis to Bismarck: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from St. Louis to Bismarck

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from St. Louis to Bismarck in 2025. You can also book with separate airlines for your outbound and return journeys, from $239 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap St. Louis to Bismarck flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your St. Louis to Bismarck airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

St. Louis to Bismarck Flights

Explore a world of travel with Expedia

*Available to One Key members.