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Bismarck

$269+ 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 2/5. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — BIS
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheap 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 December 18, 2025.

This United Airlines deal was found by Cheapflights users on 12/16. 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 12/315:05 amGEG - BIS
1 stop6h 05mUnited Airlines
Sun 1/48:10 amBIS - GEG
1 stop6h 35mUnited Airlines
Deal found 12/16$340
This United Airlines deal was found by Cheapflights users on 12/16. 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 12/312:40 pmBOI - BIS
1 stop4h 36mUnited Airlines
Sun 1/45:45 amBIS - BOI
1 stop5h 16mUnited Airlines
Deal found 12/16$344
This United Airlines deal was found by Cheapflights users on 12/16. 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 12/182:40 pmBOI - BIS
1 stop4h 36mUnited Airlines
Sat 12/205:45 amBIS - BOI
1 stop5h 16mUnited Airlines
Deal found 12/16$564
This United Airlines deal was found by Cheapflights users on 12/16. 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 12/197:00 amBOI - BIS
2 stops12h 16mUnited Airlines
Sun 12/215:45 amBIS - BOI
1 stop5h 16mUnited Airlines
Deal found 12/16$600
This Delta deal was found by Cheapflights users on 12/17. 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 12/196:00 amGEG - BIS
2 stops8h 56mDelta
Fri 12/267:38 amBIS - GEG
1 stop6h 46mDelta
Deal found 12/17$734
This United Airlines deal was found by Cheapflights users on 12/17. 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 12/194:00 pmGEG - BIS
1 stop5h 52mUnited Airlines
Fri 12/265:10 pmBIS - GEG
1 stop5h 48mUnited Airlines
Deal found 12/17$758
This American Airlines deal was found by Cheapflights users on 12/16. 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.
Wed 12/312:18 pmBOI - BIS
2 stops22h 51mAmerican Airlines
Sun 1/46:00 amBIS - BOI
2 stops18h 40mAmerican Airlines
Deal found 12/16$827
This Delta deal was found by Cheapflights users on 12/16. 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.
Wed 12/315:55 amGEG - BIS
2 stops11h 54mDelta
Sun 1/47:38 amBIS - GEG
2 stops9h 13mDelta
Deal found 12/16$1,069

Find flight deals from Idaho to Bismarck

Keep the following information in mind while searching for Idaho to Bismarck flight deals. Data was last updated December 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$269
(Delta)

Popular in

March

Cheapest in

November
Provider with most accurate pricing for Boise Air Term. Gowen Fld-Bismarck flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boise Air Term. Gowen Fld-Bismarck flights.
Search Deals
From Idaho to Bismarck
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($55 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 10% potential price decrease ($36 potential savings vs. average RT price).
Search Deals

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 December 18, 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

Thu 2/5

3:03 pm-11:26 pm

1 stop7h 23m

Bismarck

Sun 2/8

6:10 am-1:34 pm

1 stop8h 24m

$269

SpokaneBismarck

GEG - BIS

GEGBIS

Spokane

Sat 1/10

2:00 pm-11:30 pm

1 stop7h 30m

Bismarck

Mon 1/12

1:03 pm-7:54 pm

1 stop8h 51m

$269

BoiseBismarck

BOI - BIS

BOIBIS

Boise Air Term. Gowen Fld

Thu 2/5

10:15 am-11:30 pm

2 stops12h 15m

Bismarck

Sun 2/8

5:30 am-10:06 am

1 stop5h 36m

$274

BoiseBismarck

BOI - BIS

BOIBIS

Boise Air Term. Gowen Fld

Wed 1/21

8:10 am-4:32 pm

1 stop7h 22m

Bismarck

Sat 1/24

1:35 pm-6:07 pm

1 stop5h 32m

$339

SpokaneBismarck

GEG - BIS

GEGBIS

Spokane

Sat 2/7

5:00 am-12:51 pm

1 stop5h 51m

Bismarck

Tue 2/10

5:10 pm-9:22 pm

1 stop6h 12m

$339

BoiseBismarck

BOI - BIS

BOIBIS

Boise Air Term. Gowen Fld

Wed 12/31

2:40 pm-8:16 pm

1 stop4h 36m

Bismarck

Sun 1/4

5:45 am-10:01 am

1 stop5h 16m

$344

SpokaneBismarck

GEG - BIS

GEGBIS

Spokane

Wed 12/31

4:00 pm-11:52 pm

1 stop5h 52m

Bismarck

Sun 1/4

5:10 pm-9:31 pm

2 stops30h 21m

$603

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

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
No data available for this route at this time. Please check back soon.

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.

  • How long is the flight from Idaho to Bismarck?

    There are many flights that can get you from Idaho to Bismarck in 7h 23m. Fly via Delta or United Airlines to get the fastest option. There are 783 mi between Idaho and Bismarck. This flight may include one or multiple stops.

  • 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.

See more FAQs

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Alternative routes for Idaho to Bismarck

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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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$223Average$313FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$248Average$449FlexibilityNo cancel feeOn-time69%

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