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Bismarck

$134+ 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 5/28. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BIS
May 6 — May 131
Tue 5/6
Tue 5/13
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 May 1, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$219
(Delta)

One-way from

$134
(Trip.com)

Popular in

May

Cheapest in

April

Average price

$567

Good round-trip deal

$264 or less
Provider with most accurate pricing for Chicago (CHI)-Bismarck flight deals.
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Provider most trusted by Cheapflights users for Chicago (CHI)-Bismarck flights.
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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. 15% potential increase in price ($70 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($18 potential savings vs. average RT price).
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Average for round-trip flights in May 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 May 1, 2025.

This Delta deal was found by Cheapflights users on 4/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/148:27 amORD - BIS
1 stop4h 11mDelta
Tue 6/171:18 pmBIS - ORD
1 stop6h 04mDelta
Deal found 4/30$219
This American Airlines deal was found by Cheapflights users on 4/30. 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.
Sat 6/710:23 amORD - BIS
Nonstop2h 33mAmerican Airlines
Tue 6/101:29 pmBIS - ORD
Nonstop2h 06mAmerican Airlines
Deal found 4/30$223
This Delta deal was found by Cheapflights users on 4/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/307:25 pmMDW - BIS
1 stop3h 55mDelta
Mon 6/25:00 amBIS - MDW
1 stop3h 36mDelta
Deal found 4/30$234
This United Airlines deal was found by Cheapflights users on 4/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/77:10 amORD - BIS
1 stop5h 50mUnited Airlines
Tue 6/105:09 pmBIS - ORD
1 stop7h 16mUnited Airlines
Deal found 4/30$249
This United Airlines deal was found by Cheapflights users on 4/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/261:39 pmSTL - BIS
1 stop7h 07mUnited Airlines
Mon 9/81:55 pmBIS - STL
1 stop6h 51mUnited Airlines
Deal found 4/30$249
This American Airlines deal was found by Cheapflights users on 4/30. 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.
Tue 8/268:07 amSTL - BIS
2 stops14h 09mAmerican Airlines
Mon 9/86:42 amBIS - STL
1 stop5h 18mAmerican Airlines
Deal found 4/30$299
This Mytrip deal was found by Cheapflights users on 4/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/1111:50 amORD - BIS
1 stop9h 53mMultiple Airlines
Thu 5/1510:07 pmBIS - ORD
1 stop12h 48mMultiple Airlines
Deal found 4/30$646

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 May 1, 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 6/14

8:27 am-12:38 pm

1 stop4h 11m

Bismarck

Tue 6/17

1:18 pm-7:22 pm

1 stop6h 04m

$219

ChicagoBismarck

ORD - BIS

ORDBIS

Chicago O'Hare Intl

Sat 6/7

10:23 am-12:56 pm

Nonstop2h 33m

Bismarck

Tue 6/10

1:29 pm-3:35 pm

Nonstop2h 06m

$223

ChicagoBismarck

MDW - BIS

MDWBIS

Chicago Midway

Fri 5/30

7:25 pm-11:20 pm

1 stop3h 55m

Bismarck

Mon 6/2

5:00 am-8:36 am

1 stop3h 36m

$234

ChicagoBismarck

ORD - BIS

ORDBIS

Chicago O'Hare Intl

Sat 6/7

7:10 am-1:00 pm

1 stop5h 50m

Bismarck

Tue 6/10

5:09 pm-12:25 am

1 stop7h 16m

$249

St. LouisBismarck

STL - BIS

STLBIS

Lambert-St Louis

Thu 5/15

8:48 am-4:30 pm

1 stop7h 42m

Bismarck

Mon 5/19

5:05 pm-11:58 pm

1 stop6h 53m

$284

St. LouisBismarck

STL - BIS

STLBIS

Lambert-St Louis

Thu 5/15

7:00 am-2:28 pm

1 stop7h 28m

Bismarck

Mon 5/19

2:59 pm-11:51 pm

2 stops8h 52m

$304

ChicagoBismarck

ORD - BIS

ORDBIS

Chicago O'Hare Intl

Sun 5/11

11:50 am-9:43 pm

1 stop9h 53m

Bismarck

Thu 5/15

10:07 pm-10:55 am

1 stop12h 48m

$646

ChicagoBismarck

ORD - BIS

ORDBIS

Chicago O'Hare Intl

Wed 5/28

7:00 am-11:20 pm

2 stops16h 20m

$213

St. LouisBismarck

STL - BIS

STLBIS

Lambert-St Louis

Wed 7/30

6:00 am-12:09 pm

1 stop6h 09m

$220

St. LouisBismarck

STL - BIS

STLBIS

Lambert-St Louis

Thu 5/22

6:00 am-10:25 am

1 stop4h 25m

$240

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Showing 1-10 of 13 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 May 1, 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.

Rainfall in Bismarck by month

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

In terms of precipitation, rainfall in Bismarck ranges from 0.4 - 3.2 inches per month. June is typically the wettest month, when rainfall can reach 3.2 in. January is typically the driest time to visit Bismarck when rainfall is around 0.4 in.

Temperature in Bismarck by month

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

If weather is an important factor for your trip to Bismarck, 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 71.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 12.2 F).

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 May 1, 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. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,934 reviews

Boarding

8.2

Food

7.3

Overall

8.0

Comfort

7.9

Entertainment

7.9

Crew

8.5

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
7,934 reviews
Delta
8.0
Very good
7,934 reviews

Boarding

8.2

Food

7.3

Overall

8.0

Comfort

7.9

Entertainment

7.9

Crew

8.5

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
8,696 reviews
Delta
8.0
Very good
7,934 reviews

Boarding

8.2

Food

7.3

Overall

8.0

Comfort

7.9

Entertainment

7.9

Crew

8.5

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
7,934 reviews

Boarding

8.2

Food

7.3

Overall

8.0

Comfort

7.9

Entertainment

7.9

Crew

8.5

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 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 $213 on Delta. Other airlines that offer cheap prices include American Airlines from $220 and United Airlines from $255 one-way.

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

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

  • What are the cheapest flights from Illinois to Bismarck?

    On average you can expect to pay $343 for a flight from Illinois to Bismarck. The cheapest flight overall is $255 while the most popular route, (Chicago O'Hare Intl - Bismarck) is currently priced at $219.

  • 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 $489). 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 May 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$218Average$415FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$298Average$458FlexibilityNo cancel feeOn-time71%

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