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Cheap flights from Illinois to Bismarck 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 Illinois to Bismarck departing on 5/9. 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 Illinois to Bismarck

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
9:55 am - 12:29 pm
ORD
-
BIS
2h 34mnonstop
American Airlines Logo
12:59 pm - 3:23 pm
BIS
-
ORD
2h 24mnonstop
$211American Airlines
Sat, May 9 - Tue, May 12
American Airlines Logo
9:55 am - 12:29 pm
ORD
-
BIS
2h 34mnonstop
American Airlines Logo
2:26 pm - 9:50 pm
BIS
-
ORD
7h 24m
1 stop
$221American Airlines
Sat, May 9 - Tue, May 12
Delta Logo
3:55 pm - 7:34 pm
ORD
-
BIS
3h 39m
1 stop
Delta Logo
11:14 am - 4:52 pm
BIS
-
ORD
5h 38m
1 stop
$231Delta
Sat, May 9 - Tue, May 12
Delta Logo
3:55 pm - 7:34 pm
ORD
-
BIS
3h 39m
1 stop
Delta Logo
1:14 pm - 8:19 pm
BIS
-
ORD
7h 05m
2 stops
$236Delta
Sat, May 9 - Tue, May 12
United Airlines Logo
4:30 pm - 10:05 pm
STL
-
BIS
5h 35m
1 stop
United Airlines Logo
6:31 pm - 11:34 pm
BIS
-
STL
5h 03m
1 stop
$269United Airlines
Tue, Mar 10 - Tue, Mar 17
Delta Logo
3:05 pm - 8:19 pm
STL
-
BIS
5h 14m
1 stop
Delta Logo
7:40 am - 2:24 pm
BIS
-
STL
6h 44m
1 stop
$309Delta
Fri, Mar 27 - Tue, Mar 31
Delta Logo
6:10 am - 12:45 pm
STL
-
BIS
6h 35m
1 stop
Delta Logo
5:00 am - 10:43 am
BIS
-
STL
5h 43m
1 stop
$319Delta
Fri, Feb 27 - Tue, Mar 3
American Airlines Logo
3:48 pm - 10:55 pm
MLI
-
BIS
7h 07m
1 stop
American Airlines Logo
12:59 pm - 6:10 pm
BIS
-
MLI
5h 11m
1 stop
$339American Airlines
Fri, May 8 - Mon, May 11
United Airlines Logo
6:00 pm - 11:43 pm
STL
-
BIS
5h 43m
1 stop
United Airlines Logo
1:43 pm - 10:14 pm
BIS
-
STL
8h 31m
2 stops
$463United Airlines
Fri, Feb 27 - Tue, Mar 3
United Airlines Logo
5:22 pm - 12:56 pm
MLI
-
BIS
19h 34m
2 stops
United Airlines Logo
1:44 pm - 10:09 am
BIS
-
MLI
20h 25m
2 stops
$679United Airlines
Mon, Mar 2 - Fri, Mar 6

American Airlines flights from Illinois to Bismarck

Our best American Airlines deals on Illinois to Bismarck flight tickets
American Airlines
May 9
ORD9:55 amChicago O'Hare Intl
2h 34m
BIS12:29 pmBismarck
May 12
BIS12:59 pmBismarck
2h 24m
ORD3:23 pmChicago O'Hare Intl
$211
American Airlines
May 9
ORD9:55 amChicago O'Hare Intl
2h 34m
BIS12:29 pmBismarck
May 12
BIS2:26 pmBismarck
7h 24m
1 stop
ORD9:50 pmChicago O'Hare Intl
$221
American Airlines
Apr 15
STL7:05 amLambert-St Louis
5h 24m
1 stop
BIS12:29 pmBismarck
Apr 21
BIS2:26 pmBismarck
9h 20m
2 stops
STL11:46 pmLambert-St Louis
$274

United Airlines flights from Illinois to Bismarck

Our best United Airlines deals on Illinois to Bismarck flight tickets
United Airlines
Mar 10
STL4:30 pmLambert-St Louis
5h 35m
1 stop
BIS10:05 pmBismarck
Mar 17
BIS6:31 pmBismarck
5h 03m
1 stop
STL11:34 pmLambert-St Louis
$269
United Airlines
Mar 9
STL5:15 amLambert-St Louis
7h 48m
1 stop
BIS1:03 pmBismarck
Mar 16
BIS6:31 pmBismarck
5h 03m
1 stop
STL11:34 pmLambert-St Louis
$307
United Airlines
Feb 14
STL4:30 pmLambert-St Louis
5h 28m
1 stop
BIS9:58 pmBismarck
Feb 17
BIS1:43 pmBismarck
6h 43m
1 stop
STL8:26 pmLambert-St Louis
$354

momondo 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, momondo users made 832,500 searches. Data last updated February 12, 2026.
Use the filters below to find and compare flights from Illinois to Bismarck that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoBismarck

ORD - BIS

ORDBIS

Chicago O'Hare Intl

Sat 5/9

9:55 am-12:29 pm

Nonstop2h 34m

Bismarck

Tue 5/12

12:59 pm-3:23 pm

Nonstop2h 24m

$211

ChicagoBismarck

ORD - BIS

ORDBIS

Chicago O'Hare Intl

Sat 5/9

9:55 am-12:29 pm

Nonstop2h 34m

Bismarck

Tue 5/12

2:26 pm-9:50 pm

1 stop7h 24m

$221

ChicagoBismarck

ORD - BIS

ORDBIS

Chicago O'Hare Intl

Sat 5/9

3:55 pm-7:34 pm

1 stop3h 39m

Bismarck

Tue 5/12

11:14 am-4:52 pm

1 stop5h 38m

$231

ChicagoBismarck

ORD - BIS

ORDBIS

Chicago O'Hare Intl

Sat 5/9

3:55 pm-7:34 pm

1 stop3h 39m

Bismarck

Tue 5/12

1:14 pm-8:19 pm

2 stops7h 05m

$236

St. LouisBismarck

STL - BIS

STLBIS

Lambert-St Louis

Tue 3/10

4:30 pm-10:05 pm

1 stop5h 35m

Bismarck

Tue 3/17

6:31 pm-11:34 pm

1 stop5h 03m

$269

St. LouisBismarck

STL - BIS

STLBIS

Lambert-St Louis

Fri 3/27

3:05 pm-8:19 pm

1 stop5h 14m

Bismarck

Tue 3/31

7:40 am-2:24 pm

1 stop6h 44m

$309

St. LouisBismarck

STL - BIS

STLBIS

Lambert-St Louis

Fri 2/27

6:10 am-12:45 pm

1 stop6h 35m

Bismarck

Tue 3/3

5:00 am-10:43 am

1 stop5h 43m

$319

MolineBismarck

MLI - BIS

MLIBIS

Moline Quad-City

Fri 5/8

3:48 pm-10:55 pm

1 stop7h 07m

Bismarck

Mon 5/11

12:59 pm-6:10 pm

1 stop5h 11m

$339

St. LouisBismarck

STL - BIS

STLBIS

Lambert-St Louis

Fri 2/27

6:00 pm-11:43 pm

1 stop5h 43m

Bismarck

Tue 3/3

1:43 pm-10:14 pm

2 stops8h 31m

$463

MolineBismarck

MLI - BIS

MLIBIS

Moline Quad-City

Mon 3/2

5:22 pm-12:56 pm

2 stops19h 34m

Bismarck

Fri 3/6

1:44 pm-10:09 am

2 stops20h 25m

$679

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 Bismarck from

How to get the cheapest flight ticket from Illinois to Bismarck

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 Bismarck?

In general, January is the cheapest month to fly from Illinois to Bismarck. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $199. If you aren’t able to travel during the month of January, then book flights to Bismarck from Illinois during November instead. Flights to Bismarck in November, while not as cheap as those in January, still average around $248.

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

The cheapest day to depart from Illinois to Bismarck is on a Wednesday. Travelers who choose to depart for Bismarck on a Wednesday will often find tickets for as low as $264. If your travel schedule is flexible, try to avoid departing on a Monday because tickets tend to average around $734. These prices are subject to change though, so be sure to set up a Price Alert for flights to Bismarck.

What is the cheapest Illinois to Bismarck flight route?

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

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

There is only 1 cabin class available to choose from on Illinois to Bismarck 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 Illinois to Bismarck flights?

You could potentially save up to 14% on your flight if you consider stops on a Illinois to Bismarck flight.

Cheap Illinois to Bismarck flight deals and tips

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

Best Price Found

$333

Fastest flight time

4h 02m

Direct flights

Mon, Tue, Thu, Fri, Sat and Sun

Airports in Bismarck

1 airport
The best one-way flight to Bismarck from Illinois in the past 72 hours is $333. The best round-trip flight deal from Illinois to Bismarck found on momondo in the last 72 hours is $533.
The fastest flight from Illinois to Bismarck takes 4h 02m
Direct flights go from Illinois to Bismarck on Monday, Tuesday, Thursday, Friday, Saturday and Sunday. The only airline offering direct flights is American Airlines.
There is 1 airport in Bismarck. From Illinois there are direct flights to Bismarck (BIS).
Search flight deals

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

    Prices for flights from Illinois to Bismarck Airport are refreshed on a daily basis.

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

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

    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 Illinois to Bismarck Airport.

  • What documentation or ID do you need to fly to Bismarck Airport?

    The travel and health documents you'll need for your trip to Bismarck Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Bismarck Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Illinois to Bismarck?

Best airlines flying from Illinois to Bismarck

Compare and see reviews for airlines that fly from Illinois to Bismarck with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $218Free CancellationRating
7.9
8,191 reviews
Search Delta flights
American AirlinesPriceFrom $255Free CancellationRating
7.2
11,277 reviews
Search American Airlines flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Illinois to Bismarck. momondo saves you time and could save you money on your trip.

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

All flight searches from Illinois to Bismarck on momondo can be filtered to show those which offer flexible booking policies.

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

Once all potential Illinois to Bismarck flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

If you are not ready to book a flight from Illinois to Bismarck now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Bismarck and let you know when they change.

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