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Bismarck

$158+ 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 10/1. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BIS
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
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 July 29, 2025.

Round-trip from

$247
(American Airlines)

One-way from

$158
(Mytrip)

Popular in

June

Cheapest in

January

Average price

$322
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. 13% potential increase in price ($54 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($17 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 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 July 29, 2025.

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.
Sat 8/210:00 amORD - BIS
Nonstop2h 19mAmerican Airlines
Tue 8/512:39 pmBIS - ORD
Nonstop2h 14mAmerican Airlines
Deal found 7/29$247
This American Airlines deal was found by Cheapflights users on 7/27. 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 9/37:23 amSTL - BIS
1 stop5h 35mAmerican Airlines
Wed 9/172:32 pmBIS - STL
1 stop8h 18mAmerican Airlines
Deal found 7/27$249
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/113:00 pmMDW - BIS
1 stop4h 37mDelta
Sun 10/127:30 amBIS - MDW
1 stop5h 38mDelta
Deal found 7/28$250
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.
Sat 8/28:30 amORD - BIS
1 stop6h 12mDelta
Tue 8/55:45 pmBIS - ORD
1 stop3h 49mDelta
Deal found 7/29$267
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.
Wed 8/66:30 amSTL - BIS
1 stop6h 07mDelta
Tue 8/125:42 pmBIS - STL
1 stop5h 40mDelta
Deal found 7/29$284
This United Airlines deal was found by Cheapflights users on 7/27. 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 8/145:00 amORD - BIS
1 stop5h 34mUnited Airlines
Sat 8/1611:30 amBIS - ORD
2 stops19h 00mUnited Airlines
Deal found 7/27$542
This United Airlines deal was found by Cheapflights users on 7/27. 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.
Mon 8/115:15 amSTL - BIS
1 stop5h 19mUnited Airlines
Fri 8/152:00 pmBIS - STL
2 stops25h 47mUnited Airlines
Deal found 7/27$663
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/3011:24 amSTL - BIS
3 stops34h 42mMultiple Airlines
Sun 8/39:55 pmBIS - STL
2 stops11h 57mMultiple Airlines
Deal found 7/28$889

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 July 29, 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

Tue 8/26

10:26 am-12:52 pm

Nonstop2h 26m

Bismarck

Tue 9/2

1:22 pm-3:35 pm

Nonstop2h 13m

$247

St. LouisBismarck

STL - BIS

STLBIS

Lambert-St Louis

Wed 9/3

7:23 am-12:58 pm

1 stop5h 35m

Bismarck

Wed 9/17

2:32 pm-10:50 pm

1 stop8h 18m

$249

ChicagoBismarck

MDW - BIS

MDWBIS

Chicago Midway

Sat 10/11

3:00 pm-7:37 pm

1 stop4h 37m

Bismarck

Sun 10/12

7:30 am-1:08 pm

1 stop5h 38m

$250

ChicagoBismarck

ORD - BIS

ORDBIS

Chicago O'Hare Intl

Tue 8/12

6:10 am-10:31 am

1 stop4h 21m

Bismarck

Sat 8/16

3:35 pm-9:34 pm

1 stop5h 59m

$267

St. LouisBismarck

STL - BIS

STLBIS

Lambert-St Louis

Thu 8/28

6:00 am-12:34 pm

1 stop6h 34m

Bismarck

Tue 9/2

5:42 pm-11:23 pm

1 stop5h 41m

$279

ChicagoBismarck

ORD - BIS

ORDBIS

Chicago O'Hare Intl

Fri 1/9

8:55 am-8:03 pm

2 stops11h 08m

Bismarck

Mon 1/12

5:07 pm-9:43 am

1 stop16h 36m

$518

St. LouisBismarck

STL - BIS

STLBIS

Lambert-St Louis

Mon 8/11

5:15 am-10:34 am

1 stop5h 19m

Bismarck

Fri 8/15

2:00 pm-3:47 pm

2 stops25h 47m

$663

ChicagoBismarck

ORD - BIS

ORDBIS

Chicago O'Hare Intl

Wed 10/1

2:04 pm-10:43 am

2 stops20h 39m

$158

ChicagoBismarck

ORD - BIS

ORDBIS

Chicago O'Hare Intl

Tue 8/26

7:15 am-11:18 pm

2 stops16h 03m

$167

St. LouisBismarck

STL - BIS

STLBIS

Lambert-St Louis

Wed 8/13

11:28 am-4:47 pm

1 stop5h 19m

$197

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

Showing 1-10 of 16 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 July 29, 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.

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 Illinois to Bismarck by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,977 reviews

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Crew

8.5

Entertainment

7.9

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
7,977 reviews
Delta
8.0
Very good
7,977 reviews

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Crew

8.5

Entertainment

7.9

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
8,899 reviews
Delta
8.0
Very good
7,977 reviews

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Crew

8.5

Entertainment

7.9

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
7,977 reviews

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Crew

8.5

Entertainment

7.9

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 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.

  • What are the cheapest airlines to fly from Illinois to Bismarck one-way?

    One-way options have recently been found by users for as low as $167 on Delta. Other airlines that offer cheap prices include American Airlines from $202 and United Airlines from $232 one-way.

  • 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%).

  • 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 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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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 July 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$218Average$411FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$258Average$466FlexibilityNo cancel feeOn-time71%

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