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$141+ Cheap flights from Bismarck (BIS) to Illinois

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 2/1. Fares are subject to change and may not be available on all flights or dates of travel.
BIS — ORD
nov. 29 — dic. 61
sáb. 11/29
sáb. 12/6
1 adult, Economy
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Cheap flight deals from Bismarck to Illinois

Keep the following information in mind while searching for Bismarck to Illinois flight deals. Data was last updated octubre 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$219
(Delta)

One-way from

$141
(Kiwi.com)

Popular in

November

Cheapest in

February

Average price

$353

Good round-trip deal

$338 or less

Good one-way deal

$232 or less
Provider with most accurate pricing for Bismarck-Chicago (CHI) flight deals.
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Provider most trusted by Cheapflights users for Bismarck-Chicago (CHI) flights.
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From Bismarck to Illinois
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One-way flight from Bismarck to Illinois
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Highest demand for flights based on searches. 16% potential increase in price ($62 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($12 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Price to beat on a round-trip flight from Bismarck to Illinois.
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Price to beat on a one-way flight from Bismarck to Illinois.
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Find flight deals from Bismarck to Illinois

Cheapest flights from Bismarck to Illinois
Explore the most affordable flight options available from Bismarck to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on octubre 30, 2025.

This American Airlines deal was found by Cheapflights users on 10/30. 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.
vie. 12/52:29 pmBIS - STL
1 stop8h 18mAmerican Airlines
vie. 12/127:00 amSTL - BIS
1 stop6h 56mAmerican Airlines
Deal found 10/30$249
This American Airlines deal was found by Cheapflights users on 10/29. 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.
sáb. 11/1512:47 pmBIS - ORD
Nonstop2h 26mAmerican Airlines
mar. 11/189:40 amORD - BIS
Nonstop2h 45mAmerican Airlines
Deal found 10/29$277
This Delta deal was found by Cheapflights users on 10/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/135:35 pmBIS - STL
1 stop5h 48mDelta
lun. 11/175:34 pmSTL - BIS
1 stop5h 52mDelta
Deal found 10/28$309
This American Airlines deal was found by Cheapflights users on 10/29. 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.
dom. 11/1612:55 pmBIS - ORD
Nonstop2h 32mAmerican Airlines
sáb. 11/223:13 pmORD - BIS
1 stop7h 10mAmerican Airlines
Deal found 10/29$323
This American Airlines deal was found by Cheapflights users on 10/29. 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.
jue. 10/301:27 pmBIS - ORD
Nonstop2h 14mAmerican Airlines
jue. 11/69:40 amORD - BIS
Nonstop2h 45mAmerican Airlines
Deal found 10/29$349
This Delta deal was found by Cheapflights users on 10/29. 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.
sáb. 11/157:40 amBIS - MDW
1 stop5h 27mDelta
mar. 11/189:41 amMDW - BIS
1 stop7h 14mDelta
Deal found 10/29$358
This Delta deal was found by Cheapflights users on 10/29. 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.
sáb. 11/155:00 amBIS - ORD
1 stop6h 37mDelta
mar. 11/188:55 amORD - BIS
2 stops8h 00mDelta
Deal found 10/29$363
This American Airlines deal was found by Cheapflights users on 10/29. 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.
vie. 11/2112:55 pmBIS - ORD
Nonstop2h 32mAmerican Airlines
lun. 11/249:40 amORD - BIS
Nonstop2h 45mAmerican Airlines
Deal found 10/29$367
This Delta deal was found by Cheapflights users on 10/29. 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.
jue. 10/3011:20 amBIS - ORD
1 stop3h 35mDelta
jue. 11/66:08 amORD - BIS
1 stop4h 32mDelta
Deal found 10/29$369
This Delta deal was found by Cheapflights users on 10/29. 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.
jue. 11/1311:32 amBIS - MDW
1 stop6h 46mDelta
lun. 11/171:47 pmMDW - BIS
1 stop6h 00mDelta
Deal found 10/29$394
This Kiwi.com deal was found by Cheapflights users on 10/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/217:19 pmBIS - MDW
2 stops28h 54mMultiple Airlines
lun. 11/246:20 amMDW - BIS
1 stop12h 09mMultiple Airlines
Deal found 10/29$516
This Kiwi.com deal was found by Cheapflights users on 10/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/1312:02 pmBIS - MDW
2 stops48h 35mMultiple Airlines
dom. 11/169:00 amMDW - BIS
1 stop25h 38mMultiple Airlines
Deal found 10/29$564

Cheapflights Fare Finder

 
Customize your flight search to find flights from Bismarck to Illinois 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 octubre 30, 2025.
Use the filters below to find and compare flights from Bismarck to Illinois that are best for you.

Fly from

Bismarck

Fly to

Illinois

Route

Depart

Return

Price

BismarckChicago

BIS - ORD

BISORD

Bismarck

sáb. 4/4

5:30 pm-9:56 pm

1 stop4h 26m

Chicago O'Hare Intl

mié. 4/8

6:00 am-12:47 pm

1 stop6h 47m

$219

BismarckSt. Louis

BIS - STL

BISSTL

Bismarck

vie. 12/5

2:29 pm-10:47 pm

1 stop8h 18m

Lambert-St Louis

vie. 12/12

7:00 am-1:56 pm

1 stop6h 56m

$249

BismarckSt. Louis

BIS - STL

BISSTL

Bismarck

sáb. 4/4

11:30 am-4:50 pm

1 stop5h 20m

Lambert-St Louis

mié. 4/8

6:30 am-10:56 am

1 stop4h 26m

$249

BismarckChicago

BIS - ORD

BISORD

Bismarck

sáb. 11/15

12:47 pm-3:13 pm

Nonstop2h 26m

Chicago O'Hare Intl

mar. 11/18

9:40 am-12:25 pm

Nonstop2h 45m

$277

BismarckSt. Louis

BIS - STL

BISSTL

Bismarck

jue. 11/13

5:35 pm-11:23 pm

1 stop5h 48m

Lambert-St Louis

lun. 11/17

5:34 pm-11:26 pm

1 stop5h 52m

$309

BismarckChicago

BIS - ORD

BISORD

Bismarck

sáb. 3/14

5:30 pm-9:56 pm

1 stop4h 26m

Chicago O'Hare Intl

mié. 3/18

6:00 am-12:47 pm

1 stop6h 47m

$319

BismarckChicago

BIS - ORD

BISORD

Bismarck

dom. 11/16

12:55 pm-3:27 pm

Nonstop2h 32m

Chicago O'Hare Intl

sáb. 11/22

3:13 pm-10:23 pm

1 stop7h 10m

$323

BismarckChicago

BIS - MDW

BISMDW

Bismarck

sáb. 11/15

7:40 am-1:07 pm

1 stop5h 27m

Chicago Midway

mar. 11/18

9:41 am-4:55 pm

1 stop7h 14m

$358

BismarckChicago

BIS - ORD

BISORD

Bismarck

mié. 3/4

7:31 am-11:33 am

1 stop4h 02m

Chicago O'Hare Intl

dom. 3/8

6:00 am-10:56 am

1 stop4h 56m

$359

BismarckChicago

BIS - ORD

BISORD

Bismarck

sáb. 11/15

5:00 am-11:37 am

1 stop6h 37m

Chicago O'Hare Intl

mar. 11/18

8:55 am-4:55 pm

2 stops8h 00m

$363

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/30

Showing 1-10 of 27 results
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Best time to book a flight from Bismarck to Illinois

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

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

Find hourly flight availability from Bismarck to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated octubre 30, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Bismarck to Illinois as you normally would.

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated octubre 30, 2025.
Peruse reviews from past customers who have flown with Delta and American Airlines from Bismarck to Illinois to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
7,998 reviews

Overall

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Delta
7.9
Good
7,998 reviews
Delta
7.9
Good
7,998 reviews

Overall

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
American Airlines
7.2
Good
11,035 reviews
Delta
7.9
Good
7,998 reviews

Overall

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.

Related info for your journey

Find useful and relevant information for your journey from Bismarck to Illinois. 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 from for flights from Bismarck to Illinois?

    Bismarck (BIS) is the airport you will fly out of if you book a flight from Bismarck to Illinois. It is only a 2.5 mi journey to Bismarck (BIS) from Bismarck’s city center.

  • How long is the flight from Bismarck to Illinois?

    There are many flights that can get you from Bismarck to Illinois in 4h 26m. Fly via Delta or American Airlines to get the fastest option. There are 714 mi between Bismarck and Illinois. Both multi-stop and nonstop flights can be found to your destination and back.

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

    The most popular route from Bismarck to Illinois is Bismarck - Chicago O'Hare Intl. You may also consider Bismarck - Lambert-St Louis or Bismarck - Chicago Midway.

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

    Before booking your flight to Illinois from Bismarck, check out the most reliable airlines to get you to your destination on time: American Airlines (80%), Qatar Airways (80%), Envoy Air( 80%).

  • What are the cheapest flights from Bismarck to Illinois?

    Looking for the cheapest flight from Bismarck to Illinois? While on average our users pay $408, our data indicates the cheapest price to be $180. The most popular route (Bismarck - Chicago O'Hare Intl), is priced around $219.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Bismarck to Illinois by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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Top 2 airlines flying from Bismarck to Illinois

Discover the top 2 airlines that operate flights from Bismarck to Illinois. 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 octubre 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$218Average$323FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$240Average$374FlexibilityNo cancel feeOn-time71%

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