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Cheap flights from Illinois to Bismarck from $136

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 4/28. 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.
Delta Logo
6:25 am - 10:34 am
ORD
-
BIS
4h 09m
1 stop
Delta Logo
1:19 pm - 7:52 pm
BIS
-
ORD
6h 33m
1 stop
$271Delta
Wed, Apr 29 - Wed, May 6
Delta Logo
6:25 am - 12:38 pm
ORD
-
BIS
6h 13m
1 stop
Delta Logo
8:05 am - 6:52 pm
BIS
-
ORD
10h 47m
2 stops
$276Delta
Wed, Apr 29 - Wed, May 6
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
$298American Airlines
Sat, May 9 - Sun, May 10
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
$300American Airlines
Sat, Apr 18 - Sat, Apr 25
Delta Logo
6:24 am - 10:29 am
ORD
-
BIS
4h 05m
1 stop
Delta Logo
1:14 pm - 7:20 pm
BIS
-
ORD
6h 06m
1 stop
$305Delta
Wed, May 13 - Wed, May 20
American Airlines Logo
4:40 pm - 10:55 pm
ORD
-
BIS
6h 15m
1 stop
American Airlines Logo
12:59 pm - 3:23 pm
BIS
-
ORD
2h 24mnonstop
$308American Airlines
Sat, May 9 - Sun, May 10
Delta Logo
6:24 am - 12:34 pm
ORD
-
BIS
6h 10m
1 stop
Delta Logo
5:00 am - 8:36 am
BIS
-
ORD
3h 36m
1 stop
$315Delta
Sat, May 9 - Sun, May 10
United Airlines Logo
4:06 pm - 11:41 pm
STL
-
BIS
7h 35m
1 stop
United Airlines Logo
1:55 pm - 8:43 pm
BIS
-
STL
6h 48m
1 stop
$409United Airlines
Tue, May 5 - Sat, May 9
United Airlines Logo
7:51 pm - 5:19 pm
CMI
-
BIS
21h 28m
2 stops
United Airlines Logo
6:00 am - 10:20 pm
BIS
-
CMI
16h 20m
2 stops
$707United Airlines
Mon, May 25 - Sat, May 30
United Airlines Logo
6:30 am - 11:41 pm
CMI
-
BIS
17h 11m
3 stops
United Airlines Logo
6:00 am - 10:20 pm
BIS
-
CMI
16h 20m
2 stops
$801United Airlines
Mon, May 25 - Sat, May 30

Delta flights from Illinois to Bismarck

Our best Delta deals on Illinois to Bismarck flight tickets
Delta
Apr 29
ORD6:25 amChicago O'Hare Intl
4h 09m
1 stop
BIS10:34 amBismarck
May 6
BIS1:19 pmBismarck
6h 33m
1 stop
ORD7:52 pmChicago O'Hare Intl
$271
Delta
Apr 29
ORD6:25 amChicago O'Hare Intl
6h 13m
1 stop
BIS12:38 pmBismarck
May 6
BIS8:05 amBismarck
10h 47m
2 stops
ORD6:52 pmChicago O'Hare Intl
$276
Delta
May 13
ORD6:24 amChicago O'Hare Intl
4h 05m
1 stop
BIS10:29 amBismarck
May 20
BIS1:14 pmBismarck
6h 06m
1 stop
ORD7:20 pmChicago O'Hare Intl
$305

United Airlines flights from Illinois to Bismarck

Our best United Airlines deals on Illinois to Bismarck flight tickets
United Airlines
May 5
STL4:06 pmLambert-St Louis
7h 35m
1 stop
BIS11:41 pmBismarck
May 9
BIS1:55 pmBismarck
6h 48m
1 stop
STL8:43 pmLambert-St Louis
$409
United Airlines
May 5
STL11:15 amLambert-St Louis
12h 26m
2 stops
BIS11:41 pmBismarck
May 9
BIS1:55 pmBismarck
6h 48m
1 stop
STL8:43 pmLambert-St Louis
$519
United Airlines
May 5
STL11:15 amLambert-St Louis
12h 26m
2 stops
BIS11:41 pmBismarck
May 9
BIS1:55 pmBismarck
6h 48m
1 stop
STL8:43 pmLambert-St Louis
$529

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 April 3, 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

Cheapest round-trip

ChicagoBismarck

ORD - BIS

ORDBIS

Chicago O'Hare Intl

Wed 4/29

6:25 am-10:34 am

1 stop4h 09m

Bismarck

Wed 5/6

1:19 pm-7:52 pm

1 stop6h 33m

$271

ChicagoBismarck

ORD - BIS

ORDBIS

Chicago O'Hare Intl

Wed 4/29

6:25 am-12:38 pm

1 stop6h 13m

Bismarck

Wed 5/6

8:05 am-6:52 pm

2 stops10h 47m

$276
Quickest round-trip

ChicagoBismarck

ORD - BIS

ORDBIS

Chicago O'Hare Intl

Sat 5/9

9:55 am-12:29 pm

Nonstop2h 34m

Bismarck

Sun 5/10

12:59 pm-3:23 pm

Nonstop2h 24m

$298

ChicagoBismarck

ORD - BIS

ORDBIS

Chicago O'Hare Intl

Sat 4/18

9:55 am-12:29 pm

Nonstop2h 34m

Bismarck

Sat 4/25

12:59 pm-3:23 pm

Nonstop2h 24m

$300

ChicagoBismarck

ORD - BIS

ORDBIS

Chicago O'Hare Intl

Wed 5/13

6:24 am-10:29 am

1 stop4h 05m

Bismarck

Wed 5/20

1:14 pm-7:20 pm

1 stop6h 06m

$305

ChicagoBismarck

ORD - BIS

ORDBIS

Chicago O'Hare Intl

Sat 5/9

4:40 pm-10:55 pm

1 stop6h 15m

Bismarck

Sun 5/10

12:59 pm-3:23 pm

Nonstop2h 24m

$308

ChicagoBismarck

ORD - BIS

ORDBIS

Chicago O'Hare Intl

Sat 5/9

6:24 am-12:34 pm

1 stop6h 10m

Bismarck

Sun 5/10

5:00 am-8:36 am

1 stop3h 36m

$315

St. LouisBismarck

STL - BIS

STLBIS

Lambert-St Louis

Tue 5/5

4:06 pm-11:41 pm

1 stop7h 35m

Bismarck

Sat 5/9

1:55 pm-8:43 pm

1 stop6h 48m

$409

ChampaignBismarck

CMI - BIS

CMIBIS

Champaign University-Willard

Mon 5/25

7:51 pm-5:19 pm

2 stops21h 28m

Bismarck

Sat 5/30

6:00 am-10:20 pm

2 stops16h 20m

$707

ChampaignBismarck

CMI - BIS

CMIBIS

Champaign University-Willard

Mon 5/25

6:30 am-11:41 pm

3 stops17h 11m

Bismarck

Sat 5/30

6:00 am-10:20 pm

2 stops16h 20m

$801

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?

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

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

$533

Fastest flight time

2h 34m

Direct flights

Every day

Airports in Bismarck

1 airport
The best flight deal from Illinois to Bismarck found on momondo in the last 72 hours is $533
The fastest flight from Illinois to Bismarck takes 2h 34m
Direct flights go from Illinois to Bismarck every day.
There is 1 airport in Bismarck. From Illinois there are direct flights to Bismarck (BIS).
Search flight deals

Frequently asked questions about flying from Illinois to Bismarck

  • 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
8,374 reviews
Search Delta flights
American AirlinesPriceFrom $255Free CancellationRating
7.1
11,551 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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