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Bismarck

$170+ Cheap flights from Illinois to Bismarck (BIS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/11. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BIS
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
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Cheap flight deals from Illinois to Bismarck

Keep the following information in mind while searching for Illinois to Bismarck flight deals. Data was last updated September 16, 2025.

Round-trip from

$219
(Delta)

One-way from

$170
(Delta)

Popular in

June

Cheapest in

January

Average price

$389

Good round-trip deal

$283 or less
From Illinois to Bismarck
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One-way flight from Illinois to Bismarck
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Highest demand for flights based on searches. 11% potential increase in price ($44 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Illinois to Bismarck.
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Find flight deals from Illinois to Bismarck

Cheapest flights from Illinois to Bismarck
Explore the most affordable flight options available from Illinois to Bismarck. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2025.

This Delta deal was found by Cheapflights users on 9/16. 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 12/36:00 amORD - BIS
1 stop6h 47mDelta
Tue 12/97:40 amBIS - ORD
1 stop4h 08mDelta
Deal found 9/16$219
This American Airlines deal was found by Cheapflights users on 9/15. 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 12/39:40 amORD - BIS
Nonstop2h 41mAmerican Airlines
Tue 12/912:51 pmBIS - ORD
Nonstop2h 32mAmerican Airlines
Deal found 9/15$247
This American Airlines deal was found by Cheapflights users on 9/15. 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.
Thu 12/49:40 amORD - BIS
Nonstop2h 41mAmerican Airlines
Tue 12/912:51 pmBIS - ORD
Nonstop2h 32mAmerican Airlines
Deal found 9/15$254
This American Airlines deal was found by Cheapflights users on 9/15. 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 9/303:59 pmSTL - BIS
1 stop6h 27mAmerican Airlines
Sat 10/41:48 pmBIS - STL
1 stop6h 44mAmerican Airlines
Deal found 9/15$259
This American Airlines deal was found by Cheapflights users on 9/15. 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 9/304:12 pmORD - BIS
1 stop6h 14mAmerican Airlines
Sat 10/46:19 amBIS - ORD
1 stop6h 16mAmerican Airlines
Deal found 9/15$267
This Delta deal was found by Cheapflights users on 9/15. 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 10/247:10 pmMDW - BIS
1 stop4h 06mDelta
Sat 10/257:30 amBIS - MDW
1 stop5h 38mDelta
Deal found 9/15$279
This American Airlines deal was found by Cheapflights users on 9/14. 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.
Thu 9/2510:38 amORD - BIS
Nonstop2h 40mAmerican Airlines
Tue 9/3012:51 pmBIS - ORD
Nonstop2h 18mAmerican Airlines
Deal found 9/14$283
This American Airlines deal was found by Cheapflights users on 9/15. 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 9/169:40 amORD - BIS
Nonstop2h 41mAmerican Airlines
Sat 9/201:48 pmBIS - ORD
Nonstop2h 18mAmerican Airlines
Deal found 9/15$286
This American Airlines deal was found by Cheapflights users on 9/15. 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 9/246:30 amMLI - BIS
1 stop7h 31mAmerican Airlines
Tue 9/302:32 pmBIS - MLI
1 stop7h 00mAmerican Airlines
Deal found 9/15$299
This Delta deal was found by Cheapflights users on 9/14. 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 9/196:00 amSTL - BIS
1 stop4h 37mDelta
Mon 9/225:32 pmBIS - STL
1 stop5h 37mDelta
Deal found 9/14$324
This American Airlines deal was found by Cheapflights users on 9/14. 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.
Fri 9/198:23 amSTL - BIS
2 stops14h 03mAmerican Airlines
Mon 9/221:48 pmBIS - STL
1 stop6h 37mAmerican Airlines
Deal found 9/14$344
This American Airlines deal was found by Cheapflights users on 9/14. 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 9/236:00 amMLI - BIS
1 stop6h 21mAmerican Airlines
Mon 9/291:48 pmBIS - MLI
1 stop4h 20mAmerican Airlines
Deal found 9/14$354

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois 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 16, 2025.
Use the filters below to find and compare flights from Illinois to Bismarck that are best for you.

Fly from

Illinois

Fly to

Bismarck

Route

Depart

Return

Price

ChicagoBismarck

ORD - BIS

ORDBIS

Chicago O'Hare Intl

Wed 12/3

6:00 am-12:47 pm

1 stop6h 47m

Bismarck

Tue 12/9

7:40 am-11:48 am

1 stop4h 08m

$219

ChicagoBismarck

ORD - BIS

ORDBIS

Chicago O'Hare Intl

Wed 12/3

9:40 am-12:21 pm

Nonstop2h 41m

Bismarck

Tue 12/9

12:51 pm-3:23 pm

Nonstop2h 32m

$247

St. LouisBismarck

STL - BIS

STLBIS

Lambert-St Louis

Tue 9/30

3:59 pm-10:26 pm

1 stop6h 27m

Bismarck

Sat 10/4

1:48 pm-8:32 pm

1 stop6h 44m

$259

ChicagoBismarck

ORD - BIS

ORDBIS

Chicago O'Hare Intl

Thu 12/4

5:18 am-1:57 pm

1 stop8h 39m

Bismarck

Tue 12/9

12:51 pm-3:23 pm

Nonstop2h 32m

$264

ChicagoBismarck

ORD - BIS

ORDBIS

Chicago O'Hare Intl

Tue 9/30

9:40 am-12:21 pm

Nonstop2h 41m

Bismarck

Sat 10/4

1:48 pm-4:06 pm

Nonstop2h 18m

$264

ChicagoBismarck

ORD - BIS

ORDBIS

Chicago O'Hare Intl

Wed 12/3

1:15 pm-10:18 pm

1 stop9h 03m

Bismarck

Wed 12/10

2:52 pm-11:35 pm

1 stop8h 43m

$274

ChicagoBismarck

MDW - BIS

MDWBIS

Chicago Midway

Fri 10/24

7:10 pm-11:16 pm

1 stop4h 06m

Bismarck

Sat 10/25

7:30 am-1:08 pm

1 stop5h 38m

$279

ChicagoBismarck

MDW - BIS

MDWBIS

Chicago Midway

Fri 1/16

2:00 pm-7:57 pm

1 stop5h 57m

Bismarck

Sun 1/18

11:30 am-6:08 pm

1 stop6h 38m

$281

ChicagoBismarck

ORD - BIS

ORDBIS

Chicago O'Hare Intl

Fri 1/16

5:00 am-12:47 pm

1 stop7h 47m

Bismarck

Sun 1/18

2:56 pm-11:51 pm

1 stop8h 55m

$281

St. LouisBismarck

STL - BIS

STLBIS

Lambert-St Louis

Fri 9/19

6:00 am-10:37 am

1 stop4h 37m

Bismarck

Mon 9/22

5:32 pm-11:09 pm

1 stop5h 37m

$324

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 40 results
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Best time to book a flight from Illinois to Bismarck

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

What is the cheapest time of day to fly from IL to BIS?

Find hourly flight availability from Illinois to Bismarck. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 16, 2025.

When flying from Illinois to Bismarck, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Related info for your journey

Find useful and relevant information for your journey from Illinois 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 Illinois?

    Most people fly into Bismarck (BIS) if they book a flight to Bismarck from Illinois. Bismarck is conveniently located just 2.5 mi from Bismarck’s city center.

  • How long is the flight from Illinois to Bismarck?

    A quick flight from Illinois to Bismarck can take about 2h 41m. Delta provides one of the quickest options available for as low as $247. The distance between Illinois and Bismarck is about 714 mi. This flight may include one or multiple stops.

  • What are the most popular routes from Illinois to Bismarck?

    Most travelers choose Moline Quad-City - Bismarck, Chicago O'Hare Intl - Bismarck or Chicago Midway - Bismarck when deciding on the best route from Illinois to Bismarck.

  • What are the most reliable airlines from Illinois to Bismarck?

    Before booking your flight to Bismarck from Illinois, check out the most reliable airlines to get you to your destination on time: American Airlines (75%), Qatar Airways (75%), Envoy Air( 75%).

  • What are the cheapest flights from Illinois to Bismarck?

    On average you can expect to pay $293 for a flight from Illinois to Bismarck. The cheapest flight overall is $283 while the most popular route, (Moline Quad-City - Bismarck) is currently priced at $433.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Illinois to Bismarck (average of $346). Flying from Illinois to Bismarck in June is currently the most expensive (average of $425). 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 Illinois to Bismarck

Discover the top 2 airlines that operate flights from Illinois 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 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$218Average$411FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$259Average$464FlexibilityNo cancel feeOn-time71%

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