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Bismarck

$249+ 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 8/19. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — BIS
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
1 adult, Economy
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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 July 29, 2025.

Round-trip from

$249
(Delta)

Popular in

March

Cheapest in

November

Average price

$529
From Boise Air Term. Gowen Fld to Bismarck
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Highest demand for flights based on searches. 3% potential increase in price ($16 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($24 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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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 July 29, 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
Tue 8/265:42 pmBIS - BOI
1 stop7h 14mDelta
Deal found 7/29$249
This American 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 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 8/256:23 amBIS - BOI
1 stop7h 23mAmerican Airlines
Deal found 7/29$254
This United Airlines deal was found by Cheapflights users on 7/28. 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.
Tue 8/125:42 pmBOI - BIS
1 stop4h 56mUnited Airlines
Sat 8/1611:30 amBIS - BOI
1 stop7h 37mUnited Airlines
Deal found 7/28$327

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 July 29, 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

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

Mon 8/25

6:23 am-12:46 pm

1 stop7h 23m

$254

BoiseBismarck

BOI - BIS

BOIBIS

Boise Air Term. Gowen Fld

Tue 8/12

5:42 pm-11:38 pm

1 stop4h 56m

Bismarck

Sat 8/16

11:30 am-6:07 pm

1 stop7h 37m

$327

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

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 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.

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 29, 2025.
Get a feel of what it's like to fly with Delta, United Airlines, and American 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
7,979 reviews

Comfort

7.9

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

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
7,979 reviews
Delta
8.0
Very good
7,979 reviews

Comfort

7.9

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

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
8,896 reviews
Delta
8.0
Very good
7,979 reviews

Comfort

7.9

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

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
7,979 reviews

Comfort

7.9

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

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.

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

    Cheapflights users have booked flights from Boise to Bismarck round-trip from $249. Other airlines that can offer you cheap pricing are American Airlines, from $254, and United Airlines, from $327. Delta is priced at 43% 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 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

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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 July 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$233Average$388FlexibilityNo cancel feeOn-time69%
DeltaCheapest$233Average$422FlexibilityNo cancel feeOn-timeN/A

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