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Cheap flights from Illinois to Bismarck from $133

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 3/25. 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
3:54 pm - 10:27 pm
STL
-
BIS
6h 33m1 stop
American Airlines Logo
2:58 pm - 10:59 pm
BIS
-
STL
8h 01m1 stop
$269American Airlines
Sat, Jan 31 - Wed, Feb 4
American Airlines Logo
8:31 am - 10:27 pm
STL
-
BIS
13h 56m2 stops
American Airlines Logo
2:58 pm - 10:59 pm
BIS
-
STL
8h 01m1 stop
$274American Airlines
Sat, Jan 31 - Wed, Feb 4
Delta Logo
11:45 am - 4:34 pm
MDW
-
BIS
4h 49m1 stop
Delta Logo
8:44 am - 1:09 pm
BIS
-
MDW
4h 25m1 stop
$309Delta
Sat, Jan 10 - Wed, Jan 14
Delta Logo
12:30 pm - 4:34 pm
ORD
-
BIS
4h 04m1 stop
Delta Logo
5:27 pm - 9:43 pm
BIS
-
ORD
4h 16m1 stop
$309Delta
Sat, Jan 10 - Wed, Jan 14
Delta Logo
9:32 am - 4:34 pm
MDW
-
BIS
7h 02m2 stops
Delta Logo
1:03 pm - 6:32 pm
BIS
-
MDW
5h 29m1 stop
$314Delta
Sat, Jan 10 - Wed, Jan 14
Delta Logo
6:15 am - 12:23 pm
ORD
-
BIS
6h 08m1 stop
Delta Logo
5:00 am - 1:08 pm
BIS
-
ORD
8h 08m2 stops
$314Delta
Sat, Jan 10 - Wed, Jan 14
United Airlines Logo
2:45 pm - 8:38 pm
STL
-
BIS
5h 53m1 stop
United Airlines Logo
1:35 pm - 8:58 pm
BIS
-
STL
7h 23m1 stop
$339United Airlines
Wed, Jan 28 - Sat, Jan 31
American Airlines Logo
8:31 am - 10:27 pm
STL
-
BIS
13h 56m2 stops
American Airlines Logo
6:16 am - 6:14 pm
BIS
-
STL
11h 58m2 stops
$362American Airlines
Sat, Jan 31 - Wed, Feb 4
United Airlines Logo
8:46 am - 12:51 pm
MLI
-
BIS
28h 05m1 stop
United Airlines Logo
1:35 pm - 8:34 pm
BIS
-
MLI
6h 59m1 stop
$434United Airlines
Tue, Jan 27 - Sat, Jan 31
United Airlines Logo
3:45 pm - 8:38 pm
MLI
-
BIS
28h 53m2 stops
United Airlines Logo
1:35 pm - 8:34 pm
BIS
-
MLI
6h 59m1 stop
$439United Airlines
Tue, Jan 27 - Sat, Jan 31

Delta flights from Illinois to Bismarck

Our best Delta deals on Illinois to Bismarck flight tickets
Delta
Jan 10
MDW11:45 amChicago Midway
4h 49m
1 stop
BIS4:34 pmBismarck
Jan 14
BIS8:44 amBismarck
4h 25m
1 stop
MDW1:09 pmChicago Midway
$309
Find similar
Delta
Jan 10
MDW9:32 amChicago Midway
7h 02m
2 stops
BIS4:34 pmBismarck
Jan 14
BIS1:03 pmBismarck
5h 29m
1 stop
MDW6:32 pmChicago Midway
$314
Find similar
Delta
Jan 10
MDW9:32 amChicago Midway
7h 02m
2 stops
BIS4:34 pmBismarck
Jan 14
BIS5:00 amBismarck
7h 48m
2 stops
MDW12:48 pmChicago Midway
$319
Find similar

American Airlines flights from Illinois to Bismarck

Our best American Airlines deals on Illinois to Bismarck flight tickets
American Airlines
Jan 31
STL3:54 pmLambert-St Louis
6h 33m
1 stop
BIS10:27 pmBismarck
Feb 4
BIS2:58 pmBismarck
8h 01m
1 stop
STL10:59 pmLambert-St Louis
$269
Find similar
American Airlines
Jan 31
STL8:31 amLambert-St Louis
13h 56m
2 stops
BIS10:27 pmBismarck
Feb 4
BIS2:58 pmBismarck
8h 01m
1 stop
STL10:59 pmLambert-St Louis
$274
Find similar
American Airlines
Jan 2
ORD9:55 amChicago O'Hare Intl
2h 36m
BIS12:31 pmBismarck
Jan 6
BIS2:58 pmBismarck
7h 11m
1 stop
ORD10:09 pmChicago O'Hare Intl
$337
Find similar

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 December 27, 2025.
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

St. LouisBismarck

STL - BIS

STLBIS

Lambert-St Louis

Sat 1/31

3:54 pm-10:27 pm

1 stop6h 33m

Bismarck

Wed 2/4

2:58 pm-10:59 pm

1 stop8h 01m

$269

St. LouisBismarck

STL - BIS

STLBIS

Lambert-St Louis

Sat 1/31

8:31 am-10:27 pm

2 stops13h 56m

Bismarck

Wed 2/4

2:58 pm-10:59 pm

1 stop8h 01m

$274

ChicagoBismarck

MDW - BIS

MDWBIS

Chicago Midway

Sat 1/10

11:45 am-4:34 pm

1 stop4h 49m

Bismarck

Wed 1/14

8:44 am-1:09 pm

1 stop4h 25m

$309

ChicagoBismarck

ORD - BIS

ORDBIS

Chicago O'Hare Intl

Sat 1/10

12:30 pm-4:34 pm

1 stop4h 04m

Bismarck

Wed 1/14

5:27 pm-9:43 pm

1 stop4h 16m

$309

ChicagoBismarck

MDW - BIS

MDWBIS

Chicago Midway

Sat 1/10

9:32 am-4:34 pm

2 stops7h 02m

Bismarck

Wed 1/14

1:03 pm-6:32 pm

1 stop5h 29m

$314

ChicagoBismarck

ORD - BIS

ORDBIS

Chicago O'Hare Intl

Sat 1/10

6:15 am-12:23 pm

1 stop6h 08m

Bismarck

Wed 1/14

5:00 am-1:08 pm

2 stops8h 08m

$314

St. LouisBismarck

STL - BIS

STLBIS

Lambert-St Louis

Wed 1/28

2:45 pm-8:38 pm

1 stop5h 53m

Bismarck

Sat 1/31

1:35 pm-8:58 pm

1 stop7h 23m

$339

St. LouisBismarck

STL - BIS

STLBIS

Lambert-St Louis

Sat 1/31

8:31 am-10:27 pm

2 stops13h 56m

Bismarck

Wed 2/4

6:16 am-6:14 pm

2 stops11h 58m

$362

MolineBismarck

MLI - BIS

MLIBIS

Moline Quad-City

Tue 1/27

8:46 am-12:51 pm

1 stop28h 05m

Bismarck

Sat 1/31

1:35 pm-8:34 pm

1 stop6h 59m

$434

MolineBismarck

MLI - BIS

MLIBIS

Moline Quad-City

Tue 1/27

3:45 pm-8:38 pm

2 stops28h 53m

Bismarck

Sat 1/31

1:35 pm-8:34 pm

1 stop6h 59m

$439

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 Thursday because tickets tend to average around $379. These prices are subject to change though, so be sure to set up a Price Alert for flights to Bismarck.

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

According to our data, the cheapest time of day to fly to Bismarck is in the morning. momondo users have found flights departing from Illinois to Bismarck in the morning for as low as $319. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Try not to purchase tickets at noon because they tend to be around $420. Of course, these prices can vary depending on the time of year and what airport you fly to.

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 4% 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

$533

Fastest flight time

3h 50m

Direct flights

Tue, Wed and Fri

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 3h 50m
Direct flights go from Illinois to Bismarck on Tuesday, Wednesday and Friday. There are no airlines offering direct flights.
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
8,019 reviews
Search Delta flights
American AirlinesPriceFrom $255Free CancellationRating
7.2
11,072 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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