HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Bismarck

$259+ Cheap flights from Boise to Bismarck (BOI - 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 9/25. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — BIS
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Boise 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 Boise to Bismarck

Discover tips and strategies to find the most affordable flight options for your journey from Boise (BOI) 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 11, 2025.

Round-trip from

$259
(United Airlines)

Popular in

March

Cheapest in

November

Average price

$377
From Boise Air Term. Gowen Fld to Bismarck
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($21 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($25 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

Find flight deals from Boise to Bismarck

Cheapest flights from Boise to Bismarck
Explore the most affordable flight options available from Boise to Bismarck. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This United Airlines deal was found by Cheapflights users on 9/10. 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 9/255:39 pmBOI - BIS
1 stop5h 00mUnited Airlines
Mon 9/296:00 amBIS - BOI
1 stop4h 42mUnited Airlines
Deal found 9/10$259
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Fri 11/215:17 pmBOI - BIS
1 stop5h 22mUnited Airlines
Sun 11/305:45 amBIS - BOI
1 stop5h 13mUnited Airlines
Deal found 9/10$396
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Mon 10/137:00 amBOI - BIS
1 stop5h 00mUnited Airlines
Fri 10/171:58 pmBIS - BOI
1 stop4h 50mUnited Airlines
Deal found 9/10$473
This American Airlines deal was found by Cheapflights users on 9/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/231:25 pmBOI - BIS
1 stop7h 58mAmerican Airlines
Sun 11/306:00 amBIS - BOI
1 stop7h 34mAmerican Airlines
Deal found 9/11$763
This Delta deal was found by Cheapflights users on 9/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2311:13 amBOI - BIS
2 stops7h 34mDelta
Sun 11/305:35 pmBIS - BOI
1 stop7h 34mDelta
Deal found 9/11$774

Cheapflights Fare Finder

 
Customize your flight search to find flights from Boise 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 11, 2025.
Use the filters below to find and compare flights from Boise to Bismarck that are best for you.

Fly from

Boise

Fly to

Bismarck

Route

Depart

Return

Price

BoiseBismarck

BOI - BIS

BOIBIS

Boise Air Term. Gowen Fld

Thu 9/25

5:39 pm-11:39 pm

1 stop5h 00m

Bismarck

Mon 9/29

6:00 am-9:42 am

1 stop4h 42m

$259

BoiseBismarck

BOI - BIS

BOIBIS

Boise Air Term. Gowen Fld

Fri 11/21

5:17 pm-11:39 pm

1 stop5h 22m

Bismarck

Sun 11/30

5:45 am-9:58 am

1 stop5h 13m

$396

BoiseBismarck

BOI - BIS

BOIBIS

Boise Air Term. Gowen Fld

Sun 11/23

2:31 pm-8:51 pm

1 stop5h 20m

Bismarck

Sun 11/30

5:45 am-9:58 am

1 stop5h 13m

$396

BoiseBismarck

BOI - BIS

BOIBIS

Boise Air Term. Gowen Fld

Mon 10/13

7:00 am-1:00 pm

1 stop5h 00m

Bismarck

Fri 10/17

1:58 pm-5:48 pm

1 stop4h 50m

$473

BoiseBismarck

BOI - BIS

BOIBIS

Boise Air Term. Gowen Fld

Sun 11/23

1:25 pm-10:23 pm

1 stop7h 58m

Bismarck

Sun 11/30

6:00 am-12:34 pm

1 stop7h 34m

$763

BoiseBismarck

BOI - BIS

BOIBIS

Boise Air Term. Gowen Fld

Sun 11/23

11:13 am-7:47 pm

2 stops7h 34m

Bismarck

Sun 11/30

5:35 pm-12:09 am

1 stop7h 34m

$774

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Best time to book a flight from Boise to Bismarck

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

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

Currently, August is the cheapest month in which you can book a flight from Boise to Bismarck (average of $346). Flying from Boise to Bismarck in June is currently the most expensive (average of $426). 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 Boise 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 September 11, 2025.
Get a feel of what it's like to fly with Delta and United Airlines from Boise to Bismarck by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,960 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

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
7,960 reviews
Delta
8.0
Very good
7,960 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

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
8,937 reviews
Delta
8.0
Very good
7,960 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

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 Boise 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 Boise to Bismarck?

    There are many flights that can get you from Boise to Bismarck in 5h. Fly via United Airlines to get the fastest option. There are 783 mi between Boise and Bismarck.

  • What are the cheapest airlines flying from Boise to Bismarck round-trip?

    Cheapflights users have booked flights from Boise to Bismarck round-trip from $223. Another airline that can offer you cheap pricing is United Airlines. Delta is priced at 49% lower than the current average price of a flight leaving 3 months from now.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Boise to Bismarck (average of $346). Flying from Boise to Bismarck in June is currently the most expensive (average of $426). 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 Boise to Bismarck

See prices for flight routes from nearby airports that may be better suited for you.
Spokane to Bismarck flights
Jackson to Fargo flights
Spokane to Fargo flights
Boise to Fargo flights
Spokane to Grand Forks flights
Spokane to Minot flights
Boise to Minot flights

Top 2 airlines flying from Boise to Bismarck

Discover the top 2 airlines that operate flights from Boise 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 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$223Average$422FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$256Average$388FlexibilityNo cancel feeOn-time69%

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.