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Bismarck

$105+ 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 11/27. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BIS
Dec 2 — Dec 91
Tue 12/2
Tue 12/9
1 adult, Economy
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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 November 2, 2025.

This American Airlines deal was found by Cheapflights users on 10/31. 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.
Sat 12/69:40 amORD - BIS
Nonstop2h 42mAmerican Airlines
Sun 12/712:51 pmBIS - ORD
Nonstop2h 32mAmerican Airlines
Deal found 10/31$230
This Delta deal was found by Cheapflights users on 10/31. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/67:02 pmMDW - BIS
1 stop4h 36mDelta
Sun 12/71:27 pmBIS - MDW
1 stop4h 51mDelta
Deal found 10/31$250
This Delta deal was found by Cheapflights users on 10/31. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/64:05 pmORD - BIS
1 stop3h 49mDelta
Sun 12/77:25 amBIS - ORD
1 stop4h 15mDelta
Deal found 10/31$250
This American Airlines deal was found by Cheapflights users on 10/31. 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.
Sat 11/159:40 amORD - BIS
Nonstop2h 30mAmerican Airlines
Wed 11/1912:55 pmBIS - ORD
Nonstop2h 32mAmerican Airlines
Deal found 10/31$294
This American Airlines deal was found by Cheapflights users on 11/1. 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 12/249:55 amORD - BIS
Nonstop2h 36mAmerican Airlines
Mon 12/291:01 pmBIS - ORD
Nonstop2h 34mAmerican Airlines
Deal found 11/1$313
This Delta deal was found by Cheapflights users on 10/31. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/157:02 pmMDW - BIS
1 stop4h 24mDelta
Wed 11/1911:32 amBIS - MDW
1 stop6h 46mDelta
Deal found 10/31$338
This Delta deal was found by Cheapflights users on 10/31. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/1510:46 amORD - BIS
2 stops9h 01mDelta
Wed 11/197:40 amBIS - ORD
1 stop3h 54mDelta
Deal found 10/31$343
This American Airlines deal was found by Cheapflights users on 10/31. 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.
Sat 12/137:35 pmSTL - BIS
1 stop16h 46mAmerican Airlines
Thu 1/11:01 pmBIS - STL
1 stop10h 44mAmerican Airlines
Deal found 10/31$483
This Delta deal was found by Cheapflights users on 10/31. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/136:00 amSTL - BIS
1 stop5h 40mDelta
Thu 1/17:38 amBIS - STL
1 stop7h 25mDelta
Deal found 10/31$489
This United Airlines deal was found by Cheapflights users on 11/1. 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.
Sat 12/131:35 pmSTL - BIS
1 stop8h 13mUnited Airlines
Thu 1/15:45 amBIS - STL
1 stop7h 35mUnited Airlines
Deal found 11/1$503
This United Airlines deal was found by Cheapflights users on 11/1. 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 11/264:43 pmSTL - BIS
1 stop6h 56mUnited Airlines
Sun 11/309:30 pmBIS - STL
2 stops24h 52mUnited Airlines
Deal found 11/1$556
This Delta deal was found by Cheapflights users on 11/1. 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 11/169:41 amMDW - BIS
1 stop7h 14mDelta
Thu 11/205:00 amBIS - MDW
1 stop4h 01mDelta
Deal found 11/1$911

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 November 2, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$219
(Delta)

One-way from

$105
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$248

Good round-trip deal

$338 or less
Provider with most accurate pricing for Chicago (CHI)-Bismarck flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Bismarck flights.
Search Deals
From Illinois to Bismarck
Search Deals
One-way flight from Illinois to Bismarck
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($52 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals
Price to beat on a round-trip flight from Illinois to Bismarck.
Search Deals

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 November 2, 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

Sat 12/6

9:40 am-12:22 pm

Nonstop2h 42m

Bismarck

Sun 12/7

12:51 pm-3:23 pm

Nonstop2h 32m

$230

St. LouisBismarck

STL - BIS

STLBIS

Lambert-St Louis

Wed 4/15

6:30 am-12:41 pm

1 stop6h 11m

Bismarck

Sat 4/18

1:10 pm-4:45 pm

1 stop3h 35m

$249

St. LouisBismarck

STL - BIS

STLBIS

Lambert-St Louis

Wed 4/1

6:30 am-12:47 pm

1 stop6h 17m

Bismarck

Sat 4/4

5:30 pm-11:10 pm

1 stop5h 40m

$249

ChicagoBismarck

MDW - BIS

MDWBIS

Chicago Midway

Sat 12/6

7:02 pm-11:38 pm

1 stop4h 36m

Bismarck

Sun 12/7

1:27 pm-6:18 pm

1 stop4h 51m

$250

ChicagoBismarck

ORD - BIS

ORDBIS

Chicago O'Hare Intl

Sat 12/6

4:05 pm-7:54 pm

1 stop3h 49m

Bismarck

Sun 12/7

7:25 am-11:40 am

1 stop4h 15m

$250

ChicagoBismarck

MDW - BIS

MDWBIS

Chicago Midway

Fri 1/16

7:16 pm-11:28 pm

1 stop4h 12m

Bismarck

Sun 1/18

5:00 am-12:48 pm

2 stops7h 48m

$255

ChicagoBismarck

ORD - BIS

ORDBIS

Chicago O'Hare Intl

Fri 1/16

6:46 pm-11:28 pm

1 stop4h 42m

Bismarck

Sun 1/18

5:00 am-1:07 pm

2 stops8h 07m

$255

ChicagoBismarck

ORD - BIS

ORDBIS

Chicago O'Hare Intl

Wed 12/24

9:55 am-12:31 pm

Nonstop2h 36m

Bismarck

Mon 12/29

1:01 pm-3:35 pm

Nonstop2h 34m

$313

MolineBismarck

MLI - BIS

MLIBIS

Moline Quad-City

Sat 2/21

8:49 am-4:40 pm

1 stop7h 51m

Bismarck

Tue 2/24

1:43 pm-9:14 pm

1 stop7h 31m

$319

St. LouisBismarck

STL - BIS

STLBIS

Lambert-St Louis

Wed 4/15

6:05 am-12:01 pm

1 stop5h 56m

Bismarck

Sat 4/18

3:04 pm-11:24 pm

2 stops8h 20m

$324

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/31

Showing 1-10 of 29 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 November 2, 2025.

One of the essential ways to save on airfare from Illinois to Bismarck is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight at noon could potentially save you up to 36% on airfare.

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 42m. American Airlines provides one of the quickest options available for as low as $230. 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 Chicago O'Hare Intl - Bismarck, Lambert-St Louis - 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 (85%), Qatar Airways (85%), Envoy Air( 85%).

  • What are the cheapest flights from Illinois to Bismarck?

    On average you can expect to pay $442 for a flight from Illinois to Bismarck. The cheapest flight overall is $254 while the most popular route, (Chicago O'Hare Intl - Bismarck) is currently priced at $250.

  • 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.

See more FAQs

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Alternative routes for Illinois to Bismarck

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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 November 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$218Average$398FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$255Average$438FlexibilityNo cancel feeOn-time71%

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