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Cheap flights from Bismarck to Illinois from $156

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 1/18. 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
11:30 am - 6:05 pm
BIS
-
MDW
6h 35m1 stop
Delta Logo
2:00 pm - 7:53 pm
MDW
-
BIS
5h 53m1 stop
$299Delta
Wed, Jun 10 - Sat, Jun 13
Delta Logo
8:44 am - 1:09 pm
BIS
-
MDW
4h 25m1 stop
Delta Logo
11:45 am - 4:34 pm
MDW
-
BIS
4h 49m1 stop
$309Delta
Tue, Jan 6 - Sat, Jan 10
Delta Logo
8:44 am - 1:09 pm
BIS
-
MDW
4h 25m1 stop
Delta Logo
9:32 am - 4:34 pm
MDW
-
BIS
7h 02m2 stops
$314Delta
Tue, Jan 6 - Sat, Jan 10
United Airlines Logo
1:35 pm - 8:58 pm
BIS
-
STL
7h 23m1 stop
United Airlines Logo
2:45 pm - 8:38 pm
STL
-
BIS
5h 53m1 stop
$339United Airlines
Sat, Jan 24 - Wed, Jan 28
American Airlines Logo
6:16 am - 3:37 pm
BIS
-
ORD
9h 21m1 stop
American Airlines Logo
6:54 am - 2:24 pm
ORD
-
BIS
7h 30m1 stop
$385American Airlines
Fri, Jan 9 - Mon, Jan 12
American Airlines Logo
2:58 pm - 10:09 pm
BIS
-
ORD
7h 11m1 stop
American Airlines Logo
6:54 am - 2:24 pm
ORD
-
BIS
7h 30m1 stop
$394American Airlines
Tue, Feb 3 - Thu, Feb 5
American Airlines Logo
2:58 pm - 11:44 pm
BIS
-
ORD
8h 46m1 stop
American Airlines Logo
5:05 am - 2:24 pm
ORD
-
BIS
9h 19m1 stop
$402American Airlines
Thu, Jan 15 - Mon, Jan 19
American Airlines Logo
2:40 pm - 10:23 pm
BIS
-
ORD
7h 43m1 stop
American Airlines Logo
3:15 pm - 11:54 pm
ORD
-
BIS
8h 39m1 stop
$428American Airlines
Mon, Feb 23 - Wed, Feb 25
United Airlines Logo
1:35 pm - 8:58 pm
BIS
-
STL
7h 23m1 stop
United Airlines Logo
6:30 am - 11:30 pm
STL
-
BIS
17h 00m2 stops
$482United Airlines
Sat, Jan 24 - Wed, Jan 28
United Airlines Logo
1:35 pm - 8:58 pm
BIS
-
STL
7h 23m1 stop
United Airlines Logo
6:00 am - 11:30 pm
STL
-
BIS
17h 30m3 stops
$488United Airlines
Sat, Jan 24 - Wed, Jan 28

American Airlines flights from Bismarck to Illinois

Our best American Airlines deals on Bismarck to Illinois flight tickets
American Airlines
Jan 9
BIS6:16 amBismarck
9h 21m
1 stop
ORD3:37 pmChicago O'Hare Intl
Jan 12
ORD6:54 amChicago O'Hare Intl
7h 30m
1 stop
BIS2:24 pmBismarck
$385
Find similar
American Airlines
Feb 3
BIS2:58 pmBismarck
7h 11m
1 stop
ORD10:09 pmChicago O'Hare Intl
Feb 5
ORD6:54 amChicago O'Hare Intl
7h 30m
1 stop
BIS2:24 pmBismarck
$394
Find similar
American Airlines
Jan 15
BIS2:58 pmBismarck
8h 46m
1 stop
ORD11:44 pmChicago O'Hare Intl
Jan 19
ORD5:05 amChicago O'Hare Intl
9h 19m
1 stop
BIS2:24 pmBismarck
$402
Find similar

Delta flights from Bismarck to Illinois

Our best Delta deals on Bismarck to Illinois flight tickets
Delta
Jun 10
BIS11:30 amBismarck
6h 35m
1 stop
MDW6:05 pmChicago Midway
Jun 13
MDW2:00 pmChicago Midway
5h 53m
1 stop
BIS7:53 pmBismarck
$299
Find similar
Delta
Jan 6
BIS8:44 amBismarck
4h 25m
1 stop
MDW1:09 pmChicago Midway
Jan 10
MDW11:45 amChicago Midway
4h 49m
1 stop
BIS4:34 pmBismarck
$309
Find similar
Delta
Jan 6
BIS8:44 amBismarck
4h 25m
1 stop
MDW1:09 pmChicago Midway
Jan 10
MDW9:32 amChicago Midway
7h 02m
2 stops
BIS4:34 pmBismarck
$314
Find similar

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 December 24, 2025.
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 6/10

11:30 am-6:05 pm

1 stop6h 35m

Chicago Midway

Sat 6/13

2:00 pm-7:53 pm

1 stop5h 53m

$299

BismarckChicago

BIS - MDW

BISMDW

Bismarck

Tue 1/6

8:44 am-1:09 pm

1 stop4h 25m

Chicago Midway

Sat 1/10

11:45 am-4:34 pm

1 stop4h 49m

$309

BismarckChicago

BIS - MDW

BISMDW

Bismarck

Tue 1/6

8:44 am-1:09 pm

1 stop4h 25m

Chicago Midway

Sat 1/10

9:32 am-4:34 pm

2 stops7h 02m

$314

BismarckSt. Louis

BIS - STL

BISSTL

Bismarck

Sat 1/24

1:35 pm-8:58 pm

1 stop7h 23m

Lambert-St Louis

Wed 1/28

2:45 pm-8:38 pm

1 stop5h 53m

$339

BismarckChicago

BIS - ORD

BISORD

Bismarck

Fri 1/9

6:16 am-3:37 pm

1 stop9h 21m

Chicago O'Hare Intl

Mon 1/12

6:54 am-2:24 pm

1 stop7h 30m

$385

BismarckChicago

BIS - ORD

BISORD

Bismarck

Tue 2/3

2:58 pm-10:09 pm

1 stop7h 11m

Chicago O'Hare Intl

Thu 2/5

6:54 am-2:24 pm

1 stop7h 30m

$394

BismarckChicago

BIS - ORD

BISORD

Bismarck

Thu 1/15

2:58 pm-11:44 pm

1 stop8h 46m

Chicago O'Hare Intl

Mon 1/19

5:05 am-2:24 pm

1 stop9h 19m

$402

BismarckChicago

BIS - ORD

BISORD

Bismarck

Mon 2/23

2:40 pm-10:23 pm

1 stop7h 43m

Chicago O'Hare Intl

Wed 2/25

3:15 pm-11:54 pm

1 stop8h 39m

$428

BismarckSt. Louis

BIS - STL

BISSTL

Bismarck

Sat 1/24

1:35 pm-8:58 pm

1 stop7h 23m

Lambert-St Louis

Wed 1/28

6:30 am-11:30 pm

2 stops17h 00m

$482

BismarckSt. Louis

BIS - STL

BISSTL

Bismarck

Sat 1/24

1:35 pm-8:58 pm

1 stop7h 23m

Lambert-St Louis

Wed 1/28

6:00 am-11:30 pm

3 stops17h 30m

$488

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 February. Flight prices, which tend to average around $248, 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 February, then flying in July is also cheap. Prices for this month can be found on momondo for an average of $259.

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 afternoon. Flights from Bismarck to Illinois during this time can be as low as $385. Flights at noon are often more expensive with an average ticket price of $446.

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 36% 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

$294

Fastest flight time

4h 12m

Direct flights

Tue, Thu, Sat and Sun

Airports in Illinois

98 airports
The best one-way flight to Illinois from Bismarck in the past 72 hours is $294. The best round-trip flight deal from Bismarck to Illinois found on momondo in the last 72 hours is $443.
The fastest flight from Bismarck to Illinois takes 4h 12m
Direct flights go from Bismarck to Illinois on Tuesday, Thursday, Saturday and Sunday. The only airline offering direct flights is American Airlines.
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 $198Free CancellationRating
7.9
8,013 reviews
Search Delta flights
American AirlinesPriceFrom $240Free CancellationRating
7.2
11,054 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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