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Cheap flights from Bismarck to Illinois from $106

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Bismarck to Illinois departing on 4/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Bismarck to Illinois

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
1:30 pm - 6:40 pm
BIS
-
MDW
5h 10m
1 stop
Delta Logo
9:30 am - 4:06 pm
MDW
-
BIS
6h 36m
1 stop
$231Delta
Wed, Mar 4 - Tue, Mar 31
Delta Logo
5:26 pm - 9:30 pm
BIS
-
ORD
4h 04m
1 stop
Delta Logo
6:15 am - 12:45 pm
ORD
-
BIS
6h 30m
1 stop
$231Delta
Tue, Mar 3 - Tue, Mar 31
Delta Logo
11:18 am - 8:44 pm
BIS
-
ORD
9h 26m
2 stops
Delta Logo
6:15 am - 12:45 pm
ORD
-
BIS
6h 30m
1 stop
$236Delta
Tue, Mar 3 - Tue, Mar 31
Delta Logo
10:20 am - 4:14 pm
BIS
-
MDW
5h 54m
1 stop
Delta Logo
9:30 am - 4:06 pm
MDW
-
BIS
6h 36m
1 stop
$280Delta
Sat, Feb 28 - Tue, Mar 31
American Airlines Logo
12:51 pm - 3:15 pm
BIS
-
ORD
2h 24mnonstop
American Airlines Logo
9:50 am - 12:21 pm
ORD
-
BIS
2h 31mnonstop
$291American Airlines
Wed, Jul 29 - Tue, Aug 4
United Airlines Logo
6:25 pm - 11:58 pm
BIS
-
STL
5h 33m
1 stop
United Airlines Logo
4:50 pm - 11:41 pm
STL
-
BIS
6h 51m
1 stop
$303United Airlines
Tue, Jul 14 - Tue, Jul 21
American Airlines Logo
12:59 pm - 3:23 pm
BIS
-
ORD
2h 24mnonstop
American Airlines Logo
9:55 am - 12:29 pm
ORD
-
BIS
2h 34mnonstop
$304American Airlines
Thu, May 14 - Tue, May 19
United Airlines Logo
6:25 pm - 11:58 pm
BIS
-
STL
5h 33m
1 stop
United Airlines Logo
4:50 pm - 11:41 pm
STL
-
BIS
6h 51m
1 stop
$330United Airlines
Tue, Jul 14 - Tue, Jul 21
American Airlines Logo
2:03 pm - 7:26 pm
BIS
-
STL
5h 23m
1 stop
American Airlines Logo
6:00 am - 12:21 pm
STL
-
BIS
6h 21m
1 stop
$368American Airlines
Tue, Jul 14 - Tue, Jul 21
American Airlines Logo
2:24 pm - 11:48 pm
BIS
-
STL
9h 24m
2 stops
American Airlines Logo
7:00 am - 1:54 pm
STL
-
BIS
6h 54m
1 stop
$376American Airlines
Mon, Mar 2 - Fri, Apr 3

American Airlines flights from Bismarck to Illinois

Our best American Airlines deals on Bismarck to Illinois flight tickets
American Airlines
Jul 29
BIS12:51 pmBismarck
2h 24m
ORD3:15 pmChicago O'Hare Intl
Aug 4
ORD9:50 amChicago O'Hare Intl
2h 31m
BIS12:21 pmBismarck
$291
American Airlines
May 14
BIS12:59 pmBismarck
2h 24m
ORD3:23 pmChicago O'Hare Intl
May 19
ORD9:55 amChicago O'Hare Intl
2h 34m
BIS12:29 pmBismarck
$304
American Airlines
May 15
BIS12:59 pmBismarck
2h 24m
ORD3:23 pmChicago O'Hare Intl
May 18
ORD9:55 amChicago O'Hare Intl
2h 34m
BIS12:29 pmBismarck
$359

Delta flights from Bismarck to Illinois

Our best Delta deals on Bismarck to Illinois flight tickets
Delta
Mar 3
BIS5:26 pmBismarck
4h 04m
1 stop
ORD9:30 pmChicago O'Hare Intl
Mar 31
ORD6:15 amChicago O'Hare Intl
6h 30m
1 stop
BIS12:45 pmBismarck
$231
Delta
Mar 3
BIS11:18 amBismarck
9h 26m
2 stops
ORD8:44 pmChicago O'Hare Intl
Mar 31
ORD6:15 amChicago O'Hare Intl
6h 30m
1 stop
BIS12:45 pmBismarck
$236
Delta
Feb 28
BIS6:10 amBismarck
5h 35m
1 stop
ORD11:45 amChicago O'Hare Intl
Mar 31
ORD6:15 amChicago O'Hare Intl
4h 18m
1 stop
BIS10:33 amBismarck
$280

momondo 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, momondo users made 832,500 searches. Data last updated February 11, 2026.
Use the filters below to find and compare flights from Bismarck to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BismarckChicago

BIS - MDW

BISMDW

Bismarck

Wed 3/4

1:30 pm-6:40 pm

1 stop5h 10m

Chicago Midway

Tue 3/31

9:30 am-4:06 pm

1 stop6h 36m

$231

BismarckChicago

BIS - ORD

BISORD

Bismarck

Tue 3/3

5:26 pm-9:30 pm

1 stop4h 04m

Chicago O'Hare Intl

Tue 3/31

6:15 am-12:45 pm

1 stop6h 30m

$231

BismarckChicago

BIS - ORD

BISORD

Bismarck

Tue 3/3

11:18 am-8:44 pm

2 stops9h 26m

Chicago O'Hare Intl

Tue 3/31

6:15 am-12:45 pm

1 stop6h 30m

$236

BismarckChicago

BIS - MDW

BISMDW

Bismarck

Sat 2/28

10:20 am-4:14 pm

1 stop5h 54m

Chicago Midway

Tue 3/31

9:30 am-4:06 pm

1 stop6h 36m

$280

BismarckChicago

BIS - ORD

BISORD

Bismarck

Wed 7/29

12:51 pm-3:15 pm

Nonstop2h 24m

Chicago O'Hare Intl

Tue 8/4

9:50 am-12:21 pm

Nonstop2h 31m

$291

BismarckSt. Louis

BIS - STL

BISSTL

Bismarck

Tue 7/14

6:25 pm-11:58 pm

1 stop5h 33m

Lambert-St Louis

Tue 7/21

4:50 pm-11:41 pm

1 stop6h 51m

$303

BismarckChicago

BIS - ORD

BISORD

Bismarck

Thu 5/14

12:59 pm-3:23 pm

Nonstop2h 24m

Chicago O'Hare Intl

Tue 5/19

9:55 am-12:29 pm

Nonstop2h 34m

$304

BismarckSt. Louis

BIS - STL

BISSTL

Bismarck

Tue 7/14

6:25 pm-11:58 pm

1 stop5h 33m

Lambert-St Louis

Tue 7/21

4:50 pm-11:41 pm

1 stop6h 51m

$330

BismarckSt. Louis

BIS - STL

BISSTL

Bismarck

Tue 7/14

2:03 pm-7:26 pm

1 stop5h 23m

Lambert-St Louis

Tue 7/21

6:00 am-12:21 pm

1 stop6h 21m

$368

BismarckSt. Louis

BIS - STL

BISSTL

Bismarck

Mon 3/2

2:24 pm-11:48 pm

2 stops9h 24m

Lambert-St Louis

Fri 4/3

7:00 am-1:54 pm

1 stop6h 54m

$376

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Illinois from

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

What is the cheapest month to fly to Illinois?

The cheapest month to fly to Illinois from Bismarck is in July. 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 July, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $260.

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 $348. 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 $426. Flights at noon are often more expensive with an average ticket price of $449.

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?

You could potentially save up to 6% on your flight if you consider stops on a Bismarck to Illinois flight.

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

$213

Fastest flight time

3h 58m

Direct flights

Every day

Airports in Illinois

98 airports
The best one-way flight to Illinois from Bismarck in the past 72 hours is $213. The best round-trip flight deal from Bismarck to Illinois found on momondo in the last 72 hours is $359.
The fastest flight from Bismarck to Illinois takes 3h 58m
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

  • 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?

  • 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?

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
DeltaPriceFrom $218Free CancellationRating
7.9
8,180 reviews
Search Delta flights
American AirlinesPriceFrom $240Free CancellationRating
7.2
11,265 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.

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