HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Bismarck

$249+ Cheap flights from Idaho to Bismarck (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 8/19. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — BIS
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Idaho to Bismarck with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Idaho to Bismarck

Keep the following information in mind while searching for Idaho to Bismarck flight deals. Data was last updated July 31, 2025.

Round-trip from

$249
(Delta)

Popular in

March

Cheapest in

November

Average price

$529
From Idaho to Bismarck
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($16 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($24 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
Search Deals

Find flight deals from Idaho to Bismarck

Cheapest flights from Idaho to Bismarck
Explore the most affordable flight options available from Idaho to Bismarck. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2025.

This Delta deal was found by Cheapflights users on 7/29. 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.
Tue 8/195:30 amBOI - BIS
1 stop6h 04mDelta
Mon 8/257:35 amBIS - BOI
1 stop7h 26mDelta
Deal found 7/29$249
This American Airlines deal was found by Cheapflights users on 7/31. 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 8/196:35 amBOI - BIS
2 stops14h 42mAmerican Airlines
Mon 8/252:59 pmBIS - BOI
1 stop7h 44mAmerican Airlines
Deal found 7/31$259
This United Airlines deal was found by Cheapflights users on 7/29. 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.
Wed 8/272:13 pmBOI - BIS
2 stops8h 26mUnited Airlines
Wed 9/36:00 amBIS - BOI
2 stops8h 49mUnited Airlines
Deal found 7/29$294
This United Airlines deal was found by Cheapflights users on 7/30. 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.
Fri 8/85:15 amGEG - BIS
1 stop5h 45mUnited Airlines
Sat 8/911:30 amBIS - GEG
1 stop7h 57mUnited Airlines
Deal found 7/30$331
This Delta deal was found by Cheapflights users on 7/30. 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 10/106:10 amGEG - BIS
2 stops11h 27mDelta
Mon 10/131:14 pmBIS - GEG
1 stop8h 32mDelta
Deal found 7/30$554

Cheapflights Fare Finder

 
Customize your flight search to find flights from Idaho 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 July 31, 2025.
Use the filters below to find and compare flights from Idaho to Bismarck that are best for you.

Fly from

Idaho

Fly to

Bismarck

Route

Depart

Return

Price

BoiseBismarck

BOI - BIS

BOIBIS

Boise Air Term. Gowen Fld

Tue 8/19

5:30 am-12:34 pm

1 stop6h 04m

Bismarck

Tue 8/26

5:42 pm-11:56 pm

1 stop7h 14m

$249

BoiseBismarck

BOI - BIS

BOIBIS

Boise Air Term. Gowen Fld

Tue 8/19

6:35 am-10:17 pm

2 stops14h 42m

Bismarck

Tue 8/26

2:59 pm-9:43 pm

1 stop7h 44m

$259

BoiseBismarck

BOI - BIS

BOIBIS

Boise Air Term. Gowen Fld

Wed 8/27

2:13 pm-11:39 pm

2 stops8h 26m

Bismarck

Wed 9/3

6:00 am-1:49 pm

2 stops8h 49m

$294

SpokaneBismarck

GEG - BIS

GEGBIS

Spokane

Fri 10/10

6:10 am-7:37 pm

2 stops11h 27m

Bismarck

Mon 10/13

1:14 pm-7:46 pm

1 stop8h 32m

$554

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Best time to book a flight from Idaho to Bismarck

Have a flexible travel schedule? Discover the best time to fly to Bismarck from Idaho 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 Idaho to Bismarck

What is the cheapest month to book a flight from Idaho to Bismarck?

Currently, August is the cheapest month in which you can book a flight from Idaho to Bismarck (average of $346). Flying from Idaho to Bismarck in July is currently the most expensive (average of $433). 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 Idaho to Bismarck?

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 July 31, 2025.
Read reviews from past customers who have flown Delta, United Airlines, and American Airlines from Idaho to Bismarck. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

Entertainment

7.9

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
7,981 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

Entertainment

7.9

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
8,900 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

Entertainment

7.9

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
7,981 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

Entertainment

7.9

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 Idaho to Bismarck. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Bismarck from Idaho?

    Located just 2.5 mi from the city center, Bismarck (BIS) is the airport most travelers will use when flying to Bismarck from Idaho.

  • Can I find deals for flights from Idaho to Bismarck that include hotel bookings?

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

  • How can I find direct flights from Idaho to Bismarck?

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

  • Can I find deals for business class flights from Idaho to Bismarck?

    Yes. Cheapflights offers flight deals from Idaho 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 Idaho to Bismarck?

    Currently, August is the cheapest month in which you can book a flight from Idaho to Bismarck (average of $346). Flying from Idaho to Bismarck in July is currently the most expensive (average of $433). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Idaho to Bismarck

See prices for flight routes from nearby airports that may be better suited for you.
Denver to Fargo flights
O'Hare Intl to Fargo flights
Dallas/Fort Worth to Fargo flights
Denver to Bismarck flights
Reno to Fargo flights
Oklahoma City to Bismarck flights
Seattle to Fargo flights
Dallas/Fort Worth to Bismarck flights
San Francisco to Fargo flights
Dulles Intl to Fargo flights
Portland to Fargo flights
Minneapolis to Bismarck flights
Hobby to Fargo flights
Pittsburgh to Bismarck flights
Nashville to Bismarck flights
Midway to Fargo flights
Baltimore to Fargo flights
Tampa to Fargo flights
Boston to Fargo flights
Sky Harbor Intl to Fargo flights
Atlanta to Fargo flights
Chattanooga to Fargo flights
Miami to Fargo flights
Newark to Bismarck flights
Denver to Minot flights
Norfolk to Fargo flights
Reagan-National to Fargo flights
Los Angeles to Fargo flights
Knoxville to Bismarck flights
Newark to Fargo flights
Orlando to Fargo flights
Columbus to Fargo flights
John F Kennedy Intl to Fargo flights
LaGuardia to Fargo flights
San Jose to Fargo flights
Cedar Rapids to Fargo flights
Detroit to Fargo flights
Eugene to Fargo flights
Minneapolis to Fargo flights
Fort Myers to Fargo flights
Charlotte to Bismarck flights
Hobby to Bismarck flights
George Bush Intcntl to Fargo flights
Madison to Bismarck flights
Seattle to Bismarck flights
Austin to Fargo flights
San Diego to Fargo flights
O'Hare Intl to Minot flights
Dulles Intl to Bismarck flights
Oakland to Fargo flights

Top 2 airlines flying from Idaho to Bismarck

Discover the top 2 airlines that operate flights from Idaho 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 July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$233Average$436FlexibilityNo cancel feeOn-time69%
DeltaCheapest$233Average$422FlexibilityNo cancel feeOn-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.