What is the cheapest airline that flies from North Dakota to Illinois?

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

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

As of May 2026, there are 21 flights per day flying from North Dakota to Illinois. The most common time of day flights depart is 12:00PM, with 57% of flights taking off in the afternoon.

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

152 flights are operational weekly from North Dakota to Illinois as of May 2026. The most popular departure day for this route is Mon, with 16% of flights per week taking off on this day.

What airlines fly to Illinois?

American Airlines, United Airlines and Delta are the top three most popular airlines that fly to Illinois from North Dakota according to our data. American Airlines is the first choice among our users, with 62% of people opting to fly with this airline when traveling to Illinois. Keep in mind that there are 3 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.

How long is the flight from North Dakota to Illinois?

The flight from North Dakota to Illinois depends on which airports you’re departing and arriving from and whether or not you have a layover. If you fly from Fargo (a popular airport in North Dakota) to Chicago O'Hare Intl Airport (the most popular airport in Illinois), then the flight time is 2h 06m on average. If you fly from Bismarck (another popular airport in North Dakota) to Chicago O'Hare Intl Airport, then the average flight time is 2h 27m.

When did momondo last update prices for flights from North Dakota to Illinois?

Prices for flights from North Dakota to Illinois were last updated today.

How many operators does momondo search for flights from North Dakota to Illinois?

As of May 2026, there are 3 operators available to choose from for flights from North Dakota to Illinois.

How old do you have to be to fly from North Dakota to Illinois?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from North Dakota to Illinois.

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

The travel and health documents you'll need for your trip to Illinois 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 Illinois. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$109 Cheap Flights from North Dakota to Illinois in 2026

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Find the cheapest flights from North Dakota to Illinois

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

2:33 pm - 8:52 pm

FAR

ORD

6h 19m

1 stop

9:48 pm - 1:47 pm

ORD

FAR

15h 59m

1 stop

$230Frontier

Sat, Aug 15 - Thu, Aug 20

2:33 pm - 8:52 pm

FAR

ORD

6h 19m

1 stop

9:57 pm - 1:48 pm

ORD

FAR

15h 51m

1 stop

$261Frontier

Mon, Aug 3 - Thu, Aug 6

2:33 pm - 8:52 pm

FAR

ORD

6h 19m

1 stop

9:57 pm - 1:48 pm

ORD

FAR

15h 51m

1 stop

$262Frontier

Sat, Aug 1 - Fri, Aug 7

4:38 pm - 6:54 pm

FAR

ORD

2h 16mnonstop

9:00 pm - 11:10 pm

ORD

FAR

2h 10mnonstop

$269American Airlines

Fri, Jul 17 - Mon, Jul 20

12:37 pm - 2:50 pm

FAR

ORD

2h 13mnonstop

3:49 pm - 11:59 pm

ORD

FAR

8h 10m

1 stop

$279American Airlines

Tue, Jun 30 - Fri, Jul 3

5:50 pm - 8:03 pm

FAR

ORD

2h 13mnonstop

9:20 pm - 11:34 pm

ORD

FAR

2h 14mnonstop

$284United Airlines

Sat, Oct 10 - Mon, Oct 12

7:10 am - 10:23 am

FAR

STL

3h 13m

1 stop

3:29 pm - 7:29 pm

STL

FAR

4h 00m

1 stop

$285Delta

Tue, Aug 25 - Sat, Aug 29

5:00 am - 8:30 am

FAR

ORD

3h 30m

1 stop

6:25 am - 12:29 pm

ORD

FAR

6h 04m

1 stop

$289Delta

Fri, Aug 14 - Tue, Aug 25

2:32 pm - 7:23 pm

FAR

STL

28h 51m

1 stop

8:08 pm - 9:35 am

STL

FAR

37h 27m

2 stops

$357Multiple Airlines

Mon, Aug 24 - Tue, Sep 1

9:00 am - 4:34 pm

FAR

STL

7h 34m

1 stop

5:30 pm - 11:15 pm

STL

FAR

5h 45m

1 stop

$365United Airlines

Sat, Aug 29 - Tue, Sep 1

Delta flights from North Dakota to Illinois

Our best Delta deals on North Dakota to Illinois flight tickets

Delta

Aug 25

FAR7:10 amFargo Hector Field

3h 13m

1 stop

STL10:23 amLambert-St Louis

Aug 29

STL3:29 pmLambert-St Louis

4h 00m

1 stop

FAR7:29 pmFargo Hector Field

$285

Delta

Aug 14

FAR5:00 amFargo Hector Field

3h 30m

1 stop

ORD8:30 amChicago O'Hare Intl

Aug 25

ORD6:25 amChicago O'Hare Intl

6h 04m

1 stop

FAR12:29 pmFargo Hector Field

$289

Delta

Jun 17

FAR7:10 amFargo Hector Field

3h 23m

1 stop

STL10:33 amLambert-St Louis

Jun 20

STL5:36 pmLambert-St Louis

5h 24m

1 stop

FAR11:00 pmFargo Hector Field

$297

Frontier flights from North Dakota to Illinois

Our best Frontier deals on North Dakota to Illinois flight tickets

Frontier

Aug 15

FAR2:33 pmFargo Hector Field

6h 19m

1 stop

ORD8:52 pmChicago O'Hare Intl

Aug 20

ORD9:48 pmChicago O'Hare Intl

15h 59m

1 stop

FAR1:47 pmFargo Hector Field

$230

Frontier

Aug 3

FAR2:33 pmFargo Hector Field

6h 19m

1 stop

ORD8:52 pmChicago O'Hare Intl

Aug 6

ORD9:57 pmChicago O'Hare Intl

15h 51m

1 stop

FAR1:48 pmFargo Hector Field

$261

Frontier

Aug 1

FAR2:33 pmFargo Hector Field

6h 19m

1 stop

ORD8:52 pmChicago O'Hare Intl

Aug 7

ORD9:57 pmChicago O'Hare Intl

15h 51m

1 stop

FAR1:48 pmFargo Hector Field

$262

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

FargoChicago

FAR - ORD

FARORD

Fargo Hector Field

Sat 8/15

2:33 pm-8:52 pm

1 stop6h 19m

Chicago O'Hare Intl

Thu 8/20

9:48 pm-1:47 pm

1 stop15h 59m

$230

FargoChicago

FAR - ORD

FARORD

Fargo Hector Field

Mon 8/3

2:33 pm-8:52 pm

1 stop6h 19m

Chicago O'Hare Intl

Thu 8/6

9:57 pm-1:48 pm

1 stop15h 51m

$261

FargoChicago

FAR - ORD

FARORD

Fargo Hector Field

Sat 8/1

2:33 pm-8:52 pm

1 stop6h 19m

Chicago O'Hare Intl

Fri 8/7

9:57 pm-1:48 pm

1 stop15h 51m

$262

Quickest round-trip

FargoChicago

FAR - ORD

FARORD

Fargo Hector Field

Fri 7/17

4:38 pm-6:54 pm

Nonstop2h 16m

Chicago O'Hare Intl

Mon 7/20

9:00 pm-11:10 pm

Nonstop2h 10m

$269

FargoChicago

FAR - ORD

FARORD

Fargo Hector Field

Tue 6/30

12:37 pm-2:50 pm

Nonstop2h 13m

Chicago O'Hare Intl

Fri 7/3

3:49 pm-11:59 pm

1 stop8h 10m

$279

FargoChicago

FAR - ORD

FARORD

Fargo Hector Field

Sat 10/10

5:50 pm-8:03 pm

Nonstop2h 13m

Chicago O'Hare Intl

Mon 10/12

9:20 pm-11:34 pm

Nonstop2h 14m

$284

FargoSt. Louis

FAR - STL

FARSTL

Fargo Hector Field

Tue 8/25

7:10 am-10:23 am

1 stop3h 13m

Lambert-St Louis

Sat 8/29

3:29 pm-7:29 pm

1 stop4h 00m

$285

FargoChicago

FAR - ORD

FARORD

Fargo Hector Field

Fri 8/14

5:00 am-8:30 am

1 stop3h 30m

Chicago O'Hare Intl

Tue 8/25

6:25 am-12:29 pm

1 stop6h 04m

$289

FargoSt. Louis

FAR - STL

FARSTL

Fargo Hector Field

Mon 8/24

2:32 pm-7:23 pm

1 stop28h 51m

Lambert-St Louis

Tue 9/1

8:08 pm-9:35 am

2 stops37h 27m

$357

FargoSt. Louis

FAR - STL

FARSTL

Fargo Hector Field

Sat 8/29

9:00 am-4:34 pm

1 stop7h 34m

Lambert-St Louis

Tue 9/1

5:30 pm-11:15 pm

1 stop5h 45m

$365

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 North Dakota 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 North Dakota is in December. Flight prices, which tend to average around $102, 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 December, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $110.

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

The cheapest day to depart from North Dakota to Illinois is on a Friday when prices can be found for as low as $444. Flights from North Dakota to Illinois on a Sunday will generally be more expensive and average around $699. 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 North Dakota to Illinois during this time can be as low as $456. Flights at noon are often more expensive with an average ticket price of $519.

What is the cheapest North Dakota to Illinois flight route?

Fly from Fargo Hector Field to Chicago O'Hare Intl for the best North Dakota - Illinois flight prices

How far in advance should I book a flight from North Dakota to Illinois?

You are more likely to see cheaper flights to Illinois from North Dakota when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $323 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from North Dakota for as low as $209 on momondo.

What cabin class options are available on North Dakota to Illinois flights?

There are 4 cabin classes available to choose from on North Dakota 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 North Dakota to Illinois flights?

You could potentially save up to 34% on your flight if you consider stops on a North Dakota to Illinois flight.

Cheap North Dakota to Illinois flight deals and tips

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

Best Price Found	$357
Fastest flight time	2h 06m
Direct flights	Every day
Airports in Illinois	98 airports

The best one-way flight to Illinois from North Dakota in the past 72 hours is $357. The best round-trip flight deal from North Dakota to Illinois found on momondo in the last 72 hours is $395.

The fastest flight from North Dakota to Illinois takes 2h 06m

Direct flights go from North Dakota to Illinois every day.

There are 98 airports in Illinois. From North Dakota there are direct flights to Chicago O'Hare Intl (ORD).

Search flight deals

Frequently asked questions about flying from North Dakota to Illinois

When did momondo last update prices for flights from North Dakota to Illinois?
Prices for flights from North Dakota to Illinois were last updated today.
How many operators does momondo search for flights from North Dakota to Illinois?
As of May 2026, there are 3 operators available to choose from for flights from North Dakota to Illinois.
How old do you have to be to fly from North Dakota to Illinois?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from North Dakota to Illinois.
What documentation or ID do you need to fly to Illinois?
The travel and health documents you'll need for your trip to Illinois 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 Illinois. 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 North Dakota to Illinois?
Based on momondo bookings for flights between North Dakota and Illinois, the leading plane model is Embraer 170, making up 25.71% of the total bookings. Other popular models include Canadair (Bombardier) Regional Jet CRJ-550 with 24.72%, Embraer 175 with 20.27%, and Canadair (Bombardier) Regional Jet with 19.04%.

Best airlines flying from North Dakota to Illinois

Compare and see reviews for airlines that fly from North Dakota to Illinois with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $209	Free Cancellation	Rating 7.4 9,751 reviews	Search United Airlines flights
American Airlines	PriceFrom $209	Free Cancellation	Rating 7.1 11,644 reviews	Search American Airlines flights
Delta	PriceFrom $323	Free Cancellation	Rating 7.9 8,449 reviews	Search Delta flights

Why use momondo?

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

It is quick and easy to find North Dakota to Illinois flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Illinois that suits you.

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

Yes. momondo enables you to select and highlight flights to Illinois from North Dakota with this policy.

How can momondo help me find flights from North Dakota to Illinois?

Once all potential North Dakota to Illinois 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 North Dakota to Illinois right now. Can momondo alert me if prices change?

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

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Popular cities in Illinois

Flights to New Yorkfrom $87

Flights to Los Angelesfrom $48

Flights to Orlandofrom $60

Flights to Miamifrom $51

Flights to Chicagofrom $60

Flights to San Franciscofrom $67

Flights to Las Vegasfrom $42

Flights to Washington, D.C.from $57

Flights to Bostonfrom $70

Flights to Atlantafrom $55

Flights to Fort Lauderdalefrom $56

Flights to Dallasfrom $107

Cheap flights from North Dakota to Illinois from $109

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from North Dakota to Illinois departing on 6/13. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Delta flights from North Dakota to Illinois

Our best Delta deals on North Dakota to Illinois flight tickets

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How to get the cheapest flight ticket from North Dakota to Illinois

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?

What is the cheapest North Dakota to Illinois flight route?

How far in advance should I book a flight from North Dakota to Illinois?

What cabin class options are available on North Dakota to Illinois flights?

Can stopping save me money on North Dakota to Illinois flights?

What is the cheapest airline that flies from North Dakota to Illinois?

What airlines fly to Illinois?

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

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

How long is the flight from North Dakota to Illinois?

Cheap North Dakota to Illinois flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

Airports in Illinois

Frequently asked questions about flying from North Dakota to Illinois

Best airlines flying from North Dakota to Illinois

Compare and see reviews for airlines that fly from North Dakota to Illinois with momondo

Why use momondo?

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

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