$239 Cheap Flights from Idaho Falls (IDA) to Bismarck (BIS)

View $239 flight on Thu, Nov 27, 2025Opens in a new window

Popular airlines from Idaho Falls Regional Airport (IDA) to Bismarck, ND (BIS-Bismarck Municipal)

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Cheap Flights from Idaho Falls to Bismarck (IDA-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.

United
Sat, Feb 21 - Mon, Feb 23
IDA
Idaho Falls
BIS
Bismarck
$249 Roundtrip, found 5 days ago
$249
Roundtrip
found 5 days ago
Select United flight, departing Sat, Feb 21 from Idaho Falls to Bismarck, returning Mon, Feb 23, priced at $249 found 5 days ago
United
Sat, Feb 21 - Mon, Feb 23
IDA
Idaho Falls
BIS
Bismarck
$275 Roundtrip, found 5 days ago
$275
Roundtrip
found 5 days ago
Select United flight, departing Sat, Feb 21 from Idaho Falls to Bismarck, returning Mon, Feb 23, priced at $275 found 5 days ago
United
Sat, Feb 21 - Mon, Feb 23
IDA
Idaho Falls
BIS
Bismarck
$319 Roundtrip, found 5 days ago
$319
Roundtrip
found 5 days ago
Select United flight, departing Sat, Feb 21 from Idaho Falls to Bismarck, returning Mon, Feb 23, priced at $319 found 5 days ago
United
Thu, Oct 30 - Sat, Nov 1
IDA
Idaho Falls
BIS
Bismarck
$329 Roundtrip, found 7 hours ago
$329
Roundtrip
found 7 hours ago
Select United flight, departing Thu, Oct 30 from Idaho Falls to Bismarck, returning Sat, Nov 1, priced at $329 found 7 hours ago
United
Sat, Feb 21 - Mon, Feb 23
IDA
Idaho Falls
BIS
Bismarck
$345 Roundtrip, found 5 days ago
$345
Roundtrip
found 5 days ago
Select United flight, departing Sat, Feb 21 from Idaho Falls to Bismarck, returning Mon, Feb 23, priced at $345 found 5 days ago
United
Wed, Oct 29 - Sat, Nov 1
IDA
Idaho Falls
BIS
Bismarck
$354 Roundtrip, found 7 hours ago
$354
Roundtrip
found 7 hours ago
Select United flight, departing Wed, Oct 29 from Idaho Falls to Bismarck, returning Sat, Nov 1, priced at $354 found 7 hours ago
United
Wed, Oct 22 - Thu, Oct 30
IDA
Idaho Falls
BIS
Bismarck
$369 Roundtrip, found 7 hours ago
$369
Roundtrip
found 7 hours ago
Select United flight, departing Wed, Oct 22 from Idaho Falls to Bismarck, returning Thu, Oct 30, priced at $369 found 7 hours ago
United
Wed, Nov 19 - Mon, Nov 24
IDA
Idaho Falls
BIS
Bismarck
$379 Roundtrip, found 10 hours ago
$379
Roundtrip
found 10 hours ago
Select United flight, departing Wed, Nov 19 from Idaho Falls to Bismarck, returning Mon, Nov 24, priced at $379 found 10 hours ago
Delta
Mon, Nov 24 - Thu, Nov 27
IDA
Idaho Falls
BIS
Bismarck
$524 Roundtrip, found 3 days ago
$524
Roundtrip
found 3 days ago
Select Delta flight, departing Mon, Nov 24 from Idaho Falls to Bismarck, returning Thu, Nov 27, priced at $524 found 3 days ago
American Airlines
Thu, Nov 20 - Sun, Nov 23
IDA
Idaho Falls
BIS
Bismarck
$932 Roundtrip, found 10 hours ago
$932
Roundtrip
found 10 hours ago
Select American Airlines flight, departing Thu, Nov 20 from Idaho Falls to Bismarck, returning Sun, Nov 23, priced at $932 found 10 hours ago

Frequently asked questions

How much does a flight from Idaho Falls Regional Airport (IDA) to Bismarck Municipal Airport (BIS) cost?
Grab a cheap one-way flight from $239 or cheap return flight from $249 from Idaho Falls Regional Airport (IDA) to Bismarck Municipal Airport (BIS) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Idaho Falls Regional Airport (IDA) to Bismarck Municipal Airport (BIS)?
The cheapest month to fly from IDA to BIS is February, when demand is low. Off-peak season is typically when better flight deals are available between these airports.
What is the cheapest airline that flies from Idaho Falls Regional Airport (IDA) to Bismarck Municipal Airport (BIS)?
To find the cheapest airline that'll fly you from IDA to BIS, use Expedia's filter tool. Tailor your search based on your travel style, such as preferred carriers and cabin class. You can then sort your results by "Price (lowest to highest)" to see the cheapest flights first.
How many flights per day from Idaho Falls Regional Airport (IDA) to Bismarck Municipal Airport (BIS)?
You'll have to catch a flight with a layover if you're traveling from Idaho Falls Regional Airport (IDA) to Bismarck Municipal Airport (BIS). There are no daily direct flights on this route. However, just filter your search to include one or two stops to discover an option that works for you.
What day of the week has the most flights from IDA to BIS?
You'll typically find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can change from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Idaho Falls Regional Airport (IDA) to Bismarck Municipal Airport (BIS)?
Book a flight from Idaho Falls Regional Airport (IDA) to Bismarck Municipal Airport (BIS) that takes off before 3 PM to reduce the likelihood of delays. Later departures have a 22% higher chance of being canceled, on average.**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 Idaho Falls Regional Airport (IDA) to Bismarck Municipal Airport (BIS) last-minute?
Booking your flight from IDA to BIS right before your journey is generally more expensive. But if there's some wiggle room with your departure times and dates, you could land a cheap last-minute fare.
Is it cheaper to book an IDA to BIS flight and hotel package?
Opting for an IDA to BIS flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels all in one place. Choose from our extensive range of stays and then add car rentals, activities and flights 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 Idaho Falls Regional Airport (IDA) to Bismarck Municipal Airport (BIS)?
Generally, it's possible to cancel or reschedule your IDA to BIS flight. However, if the booking was made more than 24 hours ago, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find more information on our Customer Service portal.

Travel information

Origin airport
Idaho Falls Regional
Destination airport
Bismarck Municipal
Airlines serving
American Airlines, Delta, United
Roundtrip price
$248
Distance
594 mi

Book with confidence

Idaho Falls to Bismarck Flights

The cheapest times to fly from Idaho Falls 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 Idaho Falls to Bismarck are during the month of February. You can find some of the cheapest flights from Idaho Falls to Bismarck with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Idaho Falls to Bismarck

Sunday is one of the best days to book for cheap flights from Idaho Falls 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 Idaho Falls 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 Idaho Falls 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 Idaho Falls 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 Idaho Falls 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.

 

Idaho Falls to Bismarck Flights

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*Available to One Key members.