What is the cheapest airline that flies from Bismarck to Illinois?

Delta, United Airlines, and American Airlines are the most popular carriers operating from Bismarck to Illinois

How many flights depart from Bismarck to Illinois on average per day?

The number of flights available between Bismarck and Illinois is 1 per day as of November 2025. The most frequent departure time is 12:00PM, with 100% of daily flights leaving in the afternoon.

How many flights depart from Bismarck to Illinois on average per week?

The number of flights available between Bismarck and Illinois is 12 per week as of November 2025. The most frequent departure day is Mon, with 17% of weekly flights leaving on this day.

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?

There are 2 operators available for flights from Bismarck Airport to Illinois as of November 2025.

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.

$128 Cheap Flights from Bismarck to Illinois in 2025/26

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Bismarck to Illinois

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

12:51 pm - 3:23 pmBIS-ORD

2h 32mnonstop

9:40 am - 12:21 pmORD-BIS

2h 41mnonstop

$199American Airlines

Find Deal

Wed, Dec 3 - Wed, Dec 10

1:10 pm - 6:08 pmBIS-MDW

4h 58m1 stop

2:00 pm - 8:07 pmMDW-BIS

6h 07m1 stop

$219Delta

Find Deal

Sat, Apr 4 - Wed, Apr 8

5:30 pm - 9:56 pmBIS-ORD

4h 26m1 stop

6:00 am - 12:47 pmORD-BIS

6h 47m1 stop

$219Delta

Find Deal

Sat, Apr 4 - Wed, Apr 8

7:25 am - 6:00 pmBIS-MDW

10h 35m2 stops

1:50 pm - 7:54 pmMDW-BIS

6h 04m1 stop

$224Delta

Find Deal

Tue, Dec 9 - Tue, Dec 16

11:30 am - 8:38 pmBIS-ORD

9h 08m2 stops

6:00 am - 12:47 pmORD-BIS

6h 47m1 stop

$224Delta

Find Deal

Sat, Apr 4 - Wed, Apr 8

11:05 am - 9:04 pmBIS-ORD

9h 59m2 stops

1:58 pm - 11:28 pmORD-BIS

9h 30m2 stops

$229Delta

Find Deal

Sat, Jan 31 - Tue, Feb 3

12:51 pm - 3:23 pmBIS-ORD

2h 32mnonstop

1:15 pm - 10:18 pmORD-BIS

9h 03m1 stop

$240American Airlines

Find Deal

Wed, Dec 3 - Wed, Dec 10

5:30 pm - 11:10 pmBIS-STL

5h 40m1 stop

6:30 am - 10:56 amSTL-BIS

4h 26m1 stop

$249Delta

Find Deal

Sat, Apr 4 - Wed, Apr 8

5:45 am - 6:50 pmBIS-ORD

13h 05m2 stops

10:50 am - 11:08 pmORD-BIS

12h 18m2 stops

$582United Airlines

Find Deal

Wed, Dec 3 - Wed, Dec 10

8:00 am - 11:59 pmBIS-ORD

15h 59m1 stop

8:07 pm - 4:25 pmORD-BIS

20h 18m1 stop

$588United Airlines

Find Deal

Wed, Dec 10 - Fri, Dec 12

American Airlines flights from Bismarck to Illinois

Our best American Airlines deals on Bismarck to Illinois flight tickets

American Airlines

Dec 3

BIS12:51 pmBismarck

2h 32m

ORD3:23 pmChicago O'Hare Intl

Dec 10

ORD9:40 amChicago O'Hare Intl

2h 41m

BIS12:21 pmBismarck

$199

Find similar

American Airlines

Dec 3

BIS12:51 pmBismarck

2h 32m

ORD3:23 pmChicago O'Hare Intl

Dec 10

ORD1:15 pmChicago O'Hare Intl

9h 03m

1 stop

BIS10:18 pmBismarck

$240

Find similar

American Airlines

Dec 9

BIS12:51 pmBismarck

2h 32m

ORD3:23 pmChicago O'Hare Intl

Dec 16

ORD9:40 amChicago O'Hare Intl

2h 41m

BIS12:21 pmBismarck

$255

Find similar

United Airlines flights from Bismarck to Illinois

Our best United Airlines deals on Bismarck to Illinois flight tickets

United Airlines

Dec 3

BIS5:45 amBismarck

13h 05m

2 stops

ORD6:50 pmChicago O'Hare Intl

Dec 10

ORD10:50 amChicago O'Hare Intl

12h 18m

2 stops

BIS11:08 pmBismarck

$582

Find similar

United Airlines

Dec 10

BIS8:00 amBismarck

15h 59m

1 stop

ORD11:59 pmChicago O'Hare Intl

Dec 12

ORD8:07 pmChicago O'Hare Intl

20h 18m

1 stop

BIS4:25 pmBismarck

$588

Find similar

United Airlines

Nov 10

BIS5:45 amBismarck

13h 18m

2 stops

ORD7:03 pmChicago O'Hare Intl

Nov 17

ORD10:40 amChicago O'Hare Intl

12h 59m

2 stops

BIS11:39 pmBismarck

$648

Find similar

Fly from

Fly to

Route

Depart

Return

Price

BismarckChicago

BIS - ORD

BISORD

Bismarck

Wed 12/3

12:51 pm-3:23 pm

Nonstop2h 32m

Chicago O'Hare Intl

Wed 12/10

9:40 am-12:21 pm

Nonstop2h 41m

$199

BismarckChicago

BIS - MDW

BISMDW

Bismarck

Sat 4/4

1:10 pm-6:08 pm

1 stop4h 58m

Chicago Midway

Wed 4/8

2:00 pm-8:07 pm

1 stop6h 07m

$219

BismarckChicago

BIS - ORD

BISORD

Bismarck

Sat 4/4

5:30 pm-9:56 pm

1 stop4h 26m

Chicago O'Hare Intl

Wed 4/8

6:00 am-12:47 pm

1 stop6h 47m

$219

BismarckChicago

BIS - MDW

BISMDW

Bismarck

Tue 12/9

7:25 am-6:00 pm

2 stops10h 35m

Chicago Midway

Tue 12/16

1:50 pm-7:54 pm

1 stop6h 04m

$224

BismarckChicago

BIS - ORD

BISORD

Bismarck

Sat 4/4

11:30 am-8:38 pm

2 stops9h 08m

Chicago O'Hare Intl

Wed 4/8

6:00 am-12:47 pm

1 stop6h 47m

$224

BismarckChicago

BIS - ORD

BISORD

Bismarck

Sat 1/31

11:05 am-9:04 pm

2 stops9h 59m

Chicago O'Hare Intl

Tue 2/3

1:58 pm-11:28 pm

2 stops9h 30m

$229

BismarckChicago

BIS - ORD

BISORD

Bismarck

Wed 12/3

12:51 pm-3:23 pm

Nonstop2h 32m

Chicago O'Hare Intl

Wed 12/10

1:15 pm-10:18 pm

1 stop9h 03m

$240

BismarckSt. Louis

BIS - STL

BISSTL

Bismarck

Sat 4/4

5:30 pm-11:10 pm

1 stop5h 40m

Lambert-St Louis

Wed 4/8

6:30 am-10:56 am

1 stop4h 26m

$249

BismarckChicago

BIS - ORD

BISORD

Bismarck

Wed 12/3

5:45 am-6:50 pm

2 stops13h 05m

Chicago O'Hare Intl

Wed 12/10

10:50 am-11:08 pm

2 stops12h 18m

$582

BismarckChicago

BIS - ORD

BISORD

Bismarck

Wed 12/10

8:00 am-11:59 pm

1 stop15h 59m

Chicago O'Hare Intl

Fri 12/12

8:07 pm-4:25 pm

1 stop20h 18m

$588

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

Other information

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 Saturday when prices can be found for as low as $343. Flights from Bismarck to Illinois on a Sunday will generally be more expensive and average around $733. 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 $433.

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 45% 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	$247
Fastest flight time	2h 06m
Direct flights	Mon, Tue, Wed, Thu, Fri and Sun
Airports in Illinois	1 airport

The best one-way flight to Illinois from Bismarck in the past 72 hours is $247. The best round-trip flight deal from Bismarck to Illinois found on momondo in the last 72 hours is $338.

The fastest flight from Bismarck to Illinois takes 2h 06m

Direct flights go from Bismarck to Illinois on Monday, Tuesday, Wednesday, Thursday, Friday and Sunday. There are no airlines offering direct flights.

There is 1 airport near Illinois: 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?
There are 2 operators available for flights from Bismarck Airport to Illinois as of November 2025.
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?
Based on momondo bookings for flights between Bismarck and Illinois, the leading plane model is Embraer 175, making up 50.00% of the total bookings. Other popular models include Embraer 170 with 43.75% and Airbus A319 with 6.25%.

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
Delta	PriceFrom $218	Free Cancellation	Rating 7.9 8,004 reviews		Search Delta flights
American Airlines	PriceFrom $240	Free Cancellation	Rating 7.2 11,042 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.

An easier way to manage your Illinois trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Start using Trips

Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

1 adult

Fri 12/5

Fri 12/12

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Illinois

Popular cities in Illinois

Flights to New Yorkfrom $44

Flights to Los Angelesfrom $49

Flights to Miamifrom $49

Flights to Chicagofrom $54

Flights to Orlandofrom $49

Flights to Las Vegasfrom $42

Flights to San Franciscofrom $57

Flights to Washington, D.C.from $49

Flights to Bostonfrom $49

Flights to Atlantafrom $40

Flights to Dallasfrom $59

Flights to Seattlefrom $58

Cheap flights from Bismarck to Illinois from $128

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 2/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Bismarck to Illinois

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

American Airlines flights from Bismarck to Illinois

Our best American Airlines deals on Bismarck to Illinois flight tickets

United Airlines flights from Bismarck to Illinois

Our best United Airlines deals on Bismarck to Illinois flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Bismarck to Illinois that are best for you.

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?

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

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 $433.

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 45% on your flight if you consider stops on a Bismarck to Illinois flight.

What is the cheapest airline that flies from Bismarck to Illinois?

Delta, United Airlines, and American Airlines are the most popular carriers operating from Bismarck to Illinois

How many flights depart from Bismarck to Illinois on average per day?

The number of flights available between Bismarck and Illinois is 1 per day as of November 2025. The most frequent departure time is 12:00PM, with 100% of daily flights leaving in the afternoon.

How many flights depart from Bismarck to Illinois on average per week?

The number of flights available between Bismarck and Illinois is 12 per week as of November 2025. The most frequent departure day is Mon, with 17% of weekly flights leaving on this day.

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

Fastest flight time

Direct flights

Airports in Illinois

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

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?

What documentation or ID do you need to fly to Illinois?

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

Why use momondo?

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

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

How can momondo help me find flights 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?

An easier way to manage your Illinois trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Illinois

Popular cities in Illinois

Popular flights according to clicks in the last 7 days on momondo