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$163+ 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 4/1. Fares are subject to change and may not be available on all flights or dates of travel.
BIS — ORD
Mar 8 — Mar 151
Sat 3/8
Sat 3/15
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 March 3, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$324
(Delta)

One-way from

$163
(Delta)

Popular in

November

Cheapest in

February

Average price

$323

Good round-trip deal

$329 or less

Good one-way deal

$219 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. 14% potential increase in price ($57 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in March 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 March 3, 2025.

This American Airlines deal was found by Cheapflights users on 3/3. 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 9/241:20 pmBIS - ORD
Nonstop2h 07mAmerican Airlines
Thu 10/910:20 amORD - BIS
Nonstop2h 20mAmerican Airlines
Deal found 3/3$239
This American Airlines deal was found by Cheapflights users on 3/2. 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 6/101:11 pmBIS - STL
1 stop7h 19mAmerican Airlines
Tue 6/177:23 amSTL - BIS
1 stop5h 18mAmerican Airlines
Deal found 3/2$249
This Delta deal was found by Cheapflights users on 3/3. 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 3/75:00 amBIS - STL
1 stop5h 59mDelta
Mon 3/103:30 pmSTL - BIS
1 stop4h 30mDelta
Deal found 3/3$324
This Delta deal was found by Cheapflights users on 3/3. 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 3/911:28 amBIS - MDW
1 stop6h 50mDelta
Mon 3/101:16 pmMDW - BIS
1 stop6h 44mDelta
Deal found 3/3$343
This Delta deal was found by Cheapflights users on 3/3. 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 3/95:00 amBIS - ORD
1 stop6h 30mDelta
Mon 3/104:24 pmORD - BIS
1 stop3h 36mDelta
Deal found 3/3$343
This United Airlines deal was found by Cheapflights users on 3/2. 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 3/75:45 amBIS - ORD
1 stop5h 34mUnited Airlines
Sun 3/95:00 amORD - BIS
1 stop8h 04mUnited Airlines
Deal found 3/2$384
This United Airlines deal was found by Cheapflights users on 3/2. 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 3/178:35 amBIS - STL
1 stop7h 59mUnited Airlines
Fri 3/214:30 pmSTL - BIS
1 stop28h 18mUnited Airlines
Deal found 3/2$542
This Mytrip deal was found by Cheapflights users on 3/2. 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.
Sun 3/910:44 pmBIS - ORD
1 stop7h 58mMultiple Airlines
Mon 3/1010:25 amORD - BIS
3 stops27h 15mMultiple Airlines
Deal found 3/2$566

Find flights from Bismarck to Illinois within your budget

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 March 3, 2025.

Fly from

Bismarck

Fly to

Illinois

Route

Depart

Return

Price

BismarckSt. Louis

BIS - STL

BISSTL

Bismarck

Fri 3/7

5:00 am-10:59 am

1 stop5h 59m

Lambert-St Louis

Mon 3/10

3:30 pm-8:00 pm

1 stop4h 30m

$324

BismarckChicago

BIS - ORD

BISORD

Bismarck

Wed 8/27

1:20 pm-3:27 pm

Nonstop2h 07m

Chicago O'Hare Intl

Fri 8/29

10:20 am-12:40 pm

Nonstop2h 20m

$419

BismarckChicago

BIS - MDW

BISMDW

Bismarck

Wed 8/27

11:30 am-6:03 pm

1 stop6h 33m

Chicago Midway

Fri 8/29

2:00 pm-7:53 pm

1 stop5h 53m

$479

BismarckChicago

BIS - ORD

BISORD

Bismarck

Wed 8/27

1:15 pm-7:43 pm

1 stop6h 28m

Chicago O'Hare Intl

Fri 8/29

5:20 pm-11:12 pm

1 stop5h 52m

$479

BismarckChicago

BIS - ORD

BISORD

Bismarck

Fri 7/11

2:00 pm-9:41 am

1 stop19h 41m

Chicago O'Hare Intl

Sun 7/13

5:00 am-10:34 am

1 stop5h 34m

$486

BismarckSt. Louis

BIS - STL

BISSTL

Bismarck

Fri 3/7

6:12 am-5:49 pm

2 stops11h 37m

Lambert-St Louis

Mon 3/10

3:48 pm-10:38 pm

1 stop6h 50m

$509

BismarckSt. Louis

BIS - STL

BISSTL

Bismarck

Mon 3/17

8:35 am-4:34 pm

1 stop7h 59m

Lambert-St Louis

Fri 3/21

4:30 pm-8:48 pm

1 stop28h 18m

$542

BismarckChicago

BIS - ORD

BISORD

Bismarck

Thu 3/13

10:44 pm-8:21 am

3 stops33h 37m

Chicago O'Hare Intl

Sun 3/16

9:16 am-7:51 pm

2 stops34h 35m

$1,020

BismarckChicago

BIS - ORD

BISORD

Bismarck

Tue 4/1

5:00 am-6:21 pm

2 stops13h 21m

$163

BismarckChicago

BIS - ORD

BISORD

Bismarck

Thu 6/5

1:11 pm-3:17 pm

Nonstop2h 06m

$245

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/3

Showing 1-10 of 11 results
1
2

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.

Travel insights for flights from Bismarck to Illinois

Get recent, data-driven insights about flights from Bismarck to Illinois including ideal travel times, pricing trends, and more.

Rainfall in Illinois by month

Plan your trip to Illinois by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Illinois ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.

Temperature in Illinois by month

Plan your trip to Illinois by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Illinois, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

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 March 3, 2025.
Read through reviews of airlines operating flights from Bismarck to Illinois, such as Delta, United Airlines and American Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,070 reviews

Entertainment

7.9

Crew

8.5

Boarding

8.2

Comfort

8.0

Food

7.3

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta
8.0
Very good
8,070 reviews
Delta
8.0
Very good
8,070 reviews

Entertainment

7.9

Crew

8.5

Boarding

8.2

Comfort

8.0

Food

7.3

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

United Airlines
7.4
Good
8,679 reviews
Delta
8.0
Very good
8,070 reviews

Entertainment

7.9

Crew

8.5

Boarding

8.2

Comfort

8.0

Food

7.3

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
8,070 reviews

Entertainment

7.9

Crew

8.5

Boarding

8.2

Comfort

8.0

Food

7.3

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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.

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

    One-way options have recently been found by users for as low as $163 on Delta. Other airlines that offer cheap prices include American Airlines from $245 and United Airlines from $251 one-way.

  • 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 - Chicago Midway or Bismarck - Lambert-St Louis.

  • What are the cheapest flights from Bismarck to Illinois?

    Looking for the cheapest flight from Bismarck to Illinois? While on average our users pay $403, our data indicates the cheapest price to be $219. The most popular route (Bismarck - Chicago O'Hare Intl), is priced around $234.

  • 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.

  • What is the cheapest month to book a flight from Bismarck to Illinois?

    Currently, August is the cheapest month in which you can book a flight from Bismarck to Illinois (average of $245). Flying from Bismarck to Illinois in March is currently the most expensive (average of $322). 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.

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Alternative routes for Bismarck to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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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 March 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$248Average$420FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$304Average$418FlexibilityNo cancel feeOn-time71%
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