What is the cheapest airline that flies from Bismarck to Illinois?

Delta is the most popular carrier operating from Bismarck to Illinois

When did momondo last update prices for flights from Bismarck Airport to Illinois?

Prices for flights from Bismarck Airport to Illinois refresh daily.

How many operators does momondo search for flights from Bismarck Airport to Illinois?

There are 2 operators available for flights from Bismarck Airport to Illinois as of April 2026.

How old do you have to be to fly from Bismarck Airport to Illinois?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Bismarck Airport to Illinois.

What documentation or ID do you need to fly to Illinois?

The necessary travel and health documents for your Illinois trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$126 Cheap Flights from Bismarck to Illinois in 2026

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Find the cheapest flights from Bismarck to Illinois

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

12:59 pm - 3:23 pm

BIS

ORD

2h 24mnonstop

9:55 am - 12:29 pm

ORD

BIS

2h 34mnonstop

$251American Airlines

Sat, May 2 - Tue, May 5

2:26 pm - 10:45 pm

BIS

ORD

8h 19m

1 stop

9:55 am - 12:29 pm

ORD

BIS

2h 34mnonstop

$261American Airlines

Sat, May 2 - Tue, May 5

1:19 pm - 6:11 pm

BIS

ORD

4h 52m

1 stop

6:25 am - 10:34 am

ORD

BIS

4h 09m

1 stop

$271Delta

Sat, May 2 - Tue, May 5

1:19 pm - 6:11 pm

BIS

ORD

4h 52m

1 stop

11:00 am - 7:35 pm

ORD

BIS

8h 35m

2 stops

$276Delta

Sat, May 2 - Tue, May 5

6:05 am - 12:49 pm

BIS

ORD

6h 44m

2 stops

1:36 pm - 7:35 pm

ORD

BIS

5h 59m

2 stops

$282Delta

Sat, May 2 - Tue, May 5

12:59 pm - 3:23 pm

BIS

ORD

2h 24mnonstop

9:55 am - 12:29 pm

ORD

BIS

2h 34mnonstop

$295American Airlines

Sat, May 2 - Sun, May 3

12:59 pm - 3:23 pm

BIS

ORD

2h 24mnonstop

9:55 am - 12:29 pm

ORD

BIS

2h 34mnonstop

$300American Airlines

Wed, Apr 15 - Wed, Apr 22

6:25 pm - 11:57 pm

BIS

STL

5h 32m

1 stop

4:48 pm - 11:41 pm

STL

BIS

6h 53m

1 stop

$329United Airlines

Tue, Jul 14 - Tue, Jul 21

1:55 pm - 8:43 pm

BIS

STL

6h 48m

1 stop

4:06 pm - 11:41 pm

STL

BIS

7h 35m

1 stop

$409United Airlines

Sat, May 2 - Tue, May 5

9:00 am - 2:28 pm

BIS

STL

5h 28m

1 stop

11:15 am - 11:41 pm

STL

BIS

12h 26m

2 stops

$519United Airlines

Sat, May 2 - Tue, May 5

American Airlines flights from Bismarck to Illinois

Our best American Airlines deals on Bismarck to Illinois flight tickets

American Airlines

May 9

BIS12:59 pmBismarck

2h 24m

ORD3:23 pmChicago O'Hare Intl

May 12

ORD9:55 amChicago O'Hare Intl

2h 34m

BIS12:29 pmBismarck

$263

American Airlines

May 9

BIS2:26 pmBismarck

7h 19m

1 stop

ORD9:45 pmChicago O'Hare Intl

May 12

ORD9:55 amChicago O'Hare Intl

2h 34m

BIS12:29 pmBismarck

$273

American Airlines

May 2

BIS12:59 pmBismarck

2h 24m

ORD3:23 pmChicago O'Hare Intl

May 3

ORD9:55 amChicago O'Hare Intl

2h 34m

BIS12:29 pmBismarck

$295

Delta flights from Bismarck to Illinois

Our best Delta deals on Bismarck to Illinois flight tickets

Delta

May 9

BIS5:42 pmBismarck

3h 38m

1 stop

ORD9:20 pmChicago O'Hare Intl

May 12

ORD12:30 pmChicago O'Hare Intl

4h 31m

1 stop

BIS5:01 pmBismarck

$271

Delta

May 9

BIS5:42 pmBismarck

3h 38m

1 stop

ORD9:20 pmChicago O'Hare Intl

May 12

ORD7:00 amChicago O'Hare Intl

10h 01m

2 stops

BIS5:01 pmBismarck

$276

Delta

Jun 30

BIS8:00 amBismarck

5h 09m

1 stop

MDW1:09 pmChicago Midway

Jul 4

MDW6:55 pmChicago Midway

4h 19m

1 stop

BIS11:14 pmBismarck

$295

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

BismarckChicago

BIS - ORD

BISORD

Bismarck

Sat 5/2

12:59 pm-3:23 pm

Nonstop2h 24m

Chicago O'Hare Intl

Tue 5/5

9:55 am-12:29 pm

Nonstop2h 34m

$251

BismarckChicago

BIS - ORD

BISORD

Bismarck

Sat 5/2

2:26 pm-10:45 pm

1 stop8h 19m

Chicago O'Hare Intl

Tue 5/5

9:55 am-12:29 pm

Nonstop2h 34m

$261

BismarckChicago

BIS - ORD

BISORD

Bismarck

Sat 5/2

1:19 pm-6:11 pm

1 stop4h 52m

Chicago O'Hare Intl

Tue 5/5

6:25 am-10:34 am

1 stop4h 09m

$271

BismarckChicago

BIS - ORD

BISORD

Bismarck

Sat 5/2

1:19 pm-6:11 pm

1 stop4h 52m

Chicago O'Hare Intl

Tue 5/5

11:00 am-7:35 pm

2 stops8h 35m

$276

BismarckChicago

BIS - ORD

BISORD

Bismarck

Sat 5/2

6:05 am-12:49 pm

2 stops6h 44m

Chicago O'Hare Intl

Tue 5/5

1:36 pm-7:35 pm

2 stops5h 59m

$282

BismarckChicago

BIS - ORD

BISORD

Bismarck

Sat 5/2

12:59 pm-3:23 pm

Nonstop2h 24m

Chicago O'Hare Intl

Sun 5/3

9:55 am-12:29 pm

Nonstop2h 34m

$295

BismarckChicago

BIS - ORD

BISORD

Bismarck

Wed 4/15

12:59 pm-3:23 pm

Nonstop2h 24m

Chicago O'Hare Intl

Wed 4/22

9:55 am-12:29 pm

Nonstop2h 34m

$300

BismarckSt. Louis

BIS - STL

BISSTL

Bismarck

Tue 7/14

6:25 pm-11:57 pm

1 stop5h 32m

Lambert-St Louis

Tue 7/21

4:48 pm-11:41 pm

1 stop6h 53m

$329

BismarckSt. Louis

BIS - STL

BISSTL

Bismarck

Sat 5/2

1:55 pm-8:43 pm

1 stop6h 48m

Lambert-St Louis

Tue 5/5

4:06 pm-11:41 pm

1 stop7h 35m

$409

BismarckSt. Louis

BIS - STL

BISSTL

Bismarck

Sat 5/2

9:00 am-2:28 pm

1 stop5h 28m

Lambert-St Louis

Tue 5/5

11:15 am-11:41 pm

2 stops12h 26m

$519

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Bismarck to Illinois

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to Illinois?

The cheapest month to fly to Illinois from Bismarck is in November. Flight prices, which tend to average around $260, are often lower during this time because this is during the off-season. If you aren’t able to travel to Illinois during the month of November, then flying in July is also cheap. Prices for this month can be found on momondo for an average of $261.

What is the cheapest day to depart on your flight to Illinois?

The cheapest day to depart from Bismarck to Illinois is on a Tuesday when prices can be found for as low as $378. Flights from Bismarck to Illinois on a Sunday will generally be more expensive and average around $743. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Illinois?

Our most recent data shows that the best time of day to fly to Illinois is in the morning. Flights from Bismarck to Illinois during this time can be as low as $442. Flights at noon are often more expensive with an average ticket price of $450.

What is the cheapest Bismarck to Illinois flight route?

Fly from Bismarck to Chicago O'Hare Intl for the best Bismarck - Illinois flight prices

What cabin class options are available on Bismarck to Illinois flights?

There is only 1 cabin class available to choose from on Bismarck to Illinois flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Bismarck to Illinois flights?

No. A direct flight is the cheapest option for a flight between Bismarck to Illinois.

Cheap Bismarck to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Bismarck to Illinois

Best Price Found	$398
Fastest flight time	2h 24m
Direct flights	Every day
Airports in Illinois	98 airports

The best one-way flight to Illinois from Bismarck in the past 72 hours is $398. The best round-trip flight deal from Bismarck to Illinois found on momondo in the last 72 hours is $405.

The fastest flight from Bismarck to Illinois takes 2h 24m

Direct flights go from Bismarck to Illinois every day.

There are 98 airports in Illinois. From Bismarck there are direct flights to Chicago O'Hare Intl (ORD).

Search flight deals

Frequently asked questions about flying from Bismarck to Illinois

When did momondo last update prices for flights from Bismarck Airport to Illinois?
Prices for flights from Bismarck Airport to Illinois refresh daily.
How many operators does momondo search for flights from Bismarck Airport to Illinois?
There are 2 operators available for flights from Bismarck Airport to Illinois as of April 2026.
How old do you have to be to fly from Bismarck Airport to Illinois?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Bismarck Airport to Illinois.
What documentation or ID do you need to fly to Illinois?
The necessary travel and health documents for your Illinois trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Bismarck to Illinois?
Based on momondo bookings for flights between Bismarck and Illinois, the leading plane model is Embraer 170, making up 58.33% of the total bookings. Other popular models include Embraer 175 with 33.33% and Airbus A319 with 8.33%.

Best airlines flying from Bismarck to Illinois

Compare and see reviews for airlines that fly from Bismarck to Illinois with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $218	Free Cancellation	Rating 7.9 8,370 reviews		Search Delta flights
American Airlines	PriceFrom $240	Free Cancellation	Rating 7.1 11,548 reviews		Search American Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Bismarck to Illinois?

Finding the right flight to Illinois from Bismarck is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Illinois quick and easy, saving you time and money.

Can I find flights from Bismarck to Illinois with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Illinois from Bismarck with this policy.

How can momondo help me find flights from Bismarck to Illinois?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Bismarck to Illinois.

I’m not ready to book a flight from Bismarck to Illinois right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Bismarck to Illinois flights. All you need is a valid email address and we will do the rest; it is that quick and easy.