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$83+ Cheap flights from North Dakota to Illinois

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/5. Fares are subject to change and may not be available on all flights or dates of travel.
FAR — ORD
Jan 7 — Jan 141
Wed 1/7
Wed 1/14
1 adult, Economy
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Cheap flight deals from North Dakota to Illinois

Cheapest flights from North Dakota to Illinois
Explore the most affordable flight options available from North Dakota to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 8, 2025.

This American Airlines deal was found by Cheapflights users on 12/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/227:13 pmFAR - ORD
Nonstop2h 15mAmerican Airlines
Fri 12/268:50 pmORD - FAR
Nonstop1h 59mAmerican Airlines
Deal found 12/7$249
This American Airlines deal was found by Cheapflights users on 12/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/146:52 amFAR - ORD
Nonstop2h 18mAmerican Airlines
Thu 1/83:27 pmORD - FAR
Nonstop2h 09mAmerican Airlines
Deal found 12/7$264
This Delta deal was found by Cheapflights users on 12/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/165:00 amFAR - ORD
1 stop6h 40mDelta
Mon 1/512:30 pmORD - FAR
1 stop4h 10mDelta
Deal found 12/7$283
This Delta deal was found by Cheapflights users on 12/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/167:00 amFAR - MDW
1 stop6h 10mDelta
Sat 1/35:59 pmMDW - FAR
1 stop5h 09mDelta
Deal found 12/7$283
This Delta deal was found by Cheapflights users on 12/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/147:00 amFAR - ORD
1 stop4h 40mDelta
Thu 1/86:15 amORD - FAR
1 stop4h 13mDelta
Deal found 12/7$284
This Delta deal was found by Cheapflights users on 12/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/147:00 amFAR - MDW
1 stop6h 10mDelta
Thu 1/87:16 pmMDW - FAR
1 stop4h 38mDelta
Deal found 12/7$284
This American Airlines deal was found by Cheapflights users on 12/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/176:52 amFAR - ORD
Nonstop2h 18mAmerican Airlines
Sun 1/48:50 pmORD - FAR
Nonstop1h 59mAmerican Airlines
Deal found 12/7$287
This Delta deal was found by Cheapflights users on 12/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/167:00 amFAR - ORD
2 stops6h 50mDelta
Sun 1/46:30 pmORD - FAR
1 stop4h 38mDelta
Deal found 12/7$288
This Delta deal was found by Cheapflights users on 12/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/167:00 amFAR - MDW
2 stops5h 34mDelta
Mon 1/51:49 pmMDW - FAR
1 stop5h 58mDelta
Deal found 12/7$288
This American Airlines deal was found by Cheapflights users on 12/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/237:13 pmFAR - ORD
Nonstop2h 15mAmerican Airlines
Sat 1/39:55 amORD - FAR
Nonstop2h 08mAmerican Airlines
Deal found 12/8$299
This American Airlines deal was found by Cheapflights users on 12/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/185:03 pmFAR - ORD
1 stop6h 12mAmerican Airlines
Sun 12/217:36 amORD - FAR
1 stop8h 57mAmerican Airlines
Deal found 12/7$304
This Delta deal was found by Cheapflights users on 12/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/167:00 amFAR - MDW
2 stops5h 34mDelta
Sun 1/45:59 pmMDW - FAR
1 stop5h 09mDelta
Deal found 12/7$316

Find flight deals from North Dakota to Illinois

Keep the following information in mind while searching for North Dakota to Illinois flight deals. Data was last updated December 8, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$195
(Booking.com)

One-way from

$83
(Trip.com)

Popular in

July

Cheapest in

January

Average price

$308

Good round-trip deal

$354 or less

Good one-way deal

$320 or less
Provider with most accurate pricing for Fargo Hector Field-Chicago (CHI) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Fargo Hector Field-Chicago (CHI) flights.
Search Deals
From North Dakota to Illinois
Search Deals
One-way flight from North Dakota to Illinois
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($29 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from North Dakota to Illinois.
Search Deals
Price to beat on a one-way flight from North Dakota to Illinois.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from North Dakota to Illinois 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, Cheapflights users made 2,558,603 searches. Data last updated December 8, 2025.
Use the filters below to find and compare flights from North Dakota to Illinois that are best for you.

Fly from

North Dakota

Fly to

Illinois

Route

Depart

Return

Price

FargoChicago

FAR - ORD

FARORD

Fargo Hector Field

Mon 1/5

6:07 pm-8:25 pm

Nonstop2h 18m

Chicago O'Hare Intl

Wed 1/14

3:45 pm-6:01 pm

Nonstop2h 16m

$209

FargoChicago

FAR - ORD

FARORD

Fargo Hector Field

Mon 2/2

7:15 am-9:39 am

Nonstop2h 24m

Chicago O'Hare Intl

Sun 2/8

3:45 pm-6:01 pm

Nonstop2h 16m

$209

FargoChicago

FAR - ORD

FARORD

Fargo Hector Field

Tue 1/20

7:15 am-9:39 am

Nonstop2h 24m

Chicago O'Hare Intl

Thu 1/29

3:45 pm-6:01 pm

Nonstop2h 16m

$209

FargoChicago

FAR - ORD

FARORD

Fargo Hector Field

Fri 2/6

6:06 pm-8:19 pm

Nonstop2h 13m

Chicago O'Hare Intl

Tue 2/10

9:40 am-11:53 am

Nonstop2h 13m

$210

FargoChicago

FAR - ORD

FARORD

Fargo Hector Field

Fri 1/16

1:16 pm-5:55 pm

1 stop4h 39m

Chicago O'Hare Intl

Tue 1/20

6:45 pm-11:54 pm

1 stop5h 09m

$229

BismarckChicago

BIS - ORD

BISORD

Bismarck

Wed 2/25

5:00 am-1:22 pm

2 stops8h 22m

Chicago O'Hare Intl

Sat 2/28

6:51 pm-11:22 pm

1 stop4h 31m

$240

FargoChicago

FAR - ORD

FARORD

Fargo Hector Field

Thu 2/26

7:34 pm-9:43 pm

Nonstop2h 09m

Chicago O'Hare Intl

Sun 3/1

9:42 am-11:52 am

Nonstop2h 10m

$249

BismarckSt. Louis

BIS - STL

BISSTL

Bismarck

Fri 1/16

5:27 pm-11:25 pm

1 stop5h 58m

Lambert-St Louis

Mon 1/19

6:10 am-10:41 am

1 stop4h 31m

$249

FargoChicago

FAR - ORD

FARORD

Fargo Hector Field

Mon 12/22

7:13 pm-9:28 pm

Nonstop2h 15m

Chicago O'Hare Intl

Fri 12/26

8:50 pm-10:49 pm

Nonstop1h 59m

$249

FargoSt. Louis

FAR - STL

FARSTL

Fargo Hector Field

Thu 1/15

1:16 pm-4:45 pm

1 stop3h 29m

Lambert-St Louis

Sun 1/18

6:10 am-10:28 am

1 stop4h 18m

$249

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/6

Showing 1-10 of 60 results
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Best time to book a flight from North Dakota to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from North Dakota with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from North Dakota to Illinois

What is the cheapest month to book a flight from North Dakota to Illinois?

Currently, February is the cheapest month in which you can book a flight from North Dakota to Illinois (average of $209). Flying from North Dakota to Illinois in May is currently the most expensive (average of $250). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ND to IL?

Find hourly flight availability from North Dakota to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 8, 2025.

When flying from North Dakota to Illinois, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 38% versus a flight in the morning.

What is the cheapest day to fly from North Dakota to Illinois?

Use this chart to determine the cheapest time to fly round-trip from North Dakota to Illinois. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their North Dakota to Illinois flight should consider departing on Sunday evenings when fares are most often at their lowest. Monday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from North Dakota to Illinois

Explore weekly flight availability from North Dakota to Illinois. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated December 8, 2025.

The most flights from USND to USIL are scheduled on a Thursday (26 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (16 on average).

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Illinois. Reviews last updated December 8, 2025.
Read through reviews of airlines operating flights from North Dakota to Illinois, such as Delta, United Airlines, and American Airlines. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,013 reviews

Entertainment

7.9

Overall

7.9

Comfort

7.9

Boarding

8.1

Crew

8.5

Food

7.3

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,013 reviews
Delta
7.9
Good
8,013 reviews

Entertainment

7.9

Overall

7.9

Comfort

7.9

Boarding

8.1

Crew

8.5

Food

7.3

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,076 reviews
Delta
7.9
Good
8,013 reviews

Entertainment

7.9

Overall

7.9

Comfort

7.9

Boarding

8.1

Crew

8.5

Food

7.3

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,042 reviews
Delta
7.9
Good
8,013 reviews

Entertainment

7.9

Overall

7.9

Comfort

7.9

Boarding

8.1

Crew

8.5

Food

7.3

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Frontier
5.8
Fair
3,088 reviews
Delta
7.9
Good
8,013 reviews

Entertainment

7.9

Overall

7.9

Comfort

7.9

Boarding

8.1

Crew

8.5

Food

7.3

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from North Dakota to Illinois. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from North Dakota to Illinois?

    Departing from North Dakota to Illinois will take you 2h 13m. The distance between North Dakota and Illinois is about 556 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from North Dakota to Illinois one-way?

    The cheapest airline one-way is Delta, with whom users have recently found tickets for as low as $99. However, be on the lookout for offers from American Airlines and United Airlines, as they are both options that can get you from North Dakota to Illinois for a low price.

  • Can I find deals for flights from North Dakota to Illinois that include hotel bookings?

    Yes. In addition to deals on North Dakota to Illinois flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from North Dakota to Illinois?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from North Dakota to Illinois.

  • Can I find deals for business class flights from North Dakota to Illinois?

    Yes. Cheapflights offers flight deals from North Dakota to Illinois by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from North Dakota to Illinois?

    Currently, February is the cheapest month in which you can book a flight from North Dakota to Illinois (average of $209). Flying from North Dakota to Illinois in May is currently the most expensive (average of $250). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for North Dakota to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from North Dakota to Illinois

Discover the top 3 airlines that operate flights from North Dakota to Illinois. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 8, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$198Average$401FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$209Average$346FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$209Average$327FlexibilityNo cancel feeOn-time71%

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