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Illinois

$91+ 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 11/10. Fares are subject to change and may not be available on all flights or dates of travel.
FAR — ORD
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheap 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 September 15, 2025.

Round-trip from

$148
(Priceline)

One-way from

$91
(Kiwi.com)

Popular in

October

Cheapest in

September

Average price

$249

Good round-trip deal

$334 or less

Good one-way deal

$271 or less
From North Dakota to Illinois
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One-way flight from North Dakota to Illinois
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Highest demand for flights based on searches. 1% potential increase in price ($4 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from North Dakota to Illinois.
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Price to beat on a one-way flight from North Dakota to Illinois.
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Find 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 September 15, 2025.

This Priceline deal was found by Cheapflights users on 9/13. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/62:31 pmFAR - ORD
1 stop9h 28mFrontier
Tue 10/77:15 amORD - FAR
1 stop7h 36mFrontier
Deal found 9/13$148
This Frontier deal was found by Cheapflights users on 9/13. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/102:56 pmFAR - ORD
1 stop10h 03mFrontier
Sun 10/126:50 amORD - FAR
1 stop7h 15mFrontier
Deal found 9/13$158
This Priceline deal was found by Cheapflights users on 9/12. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/102:56 pmFAR - ORD
1 stop10h 03mFrontier
Tue 10/217:15 amORD - FAR
1 stop7h 36mFrontier
Deal found 9/12$173
This Priceline deal was found by Cheapflights users on 9/14. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/173:09 pmFAR - ORD
1 stop9h 50mFrontier
Tue 10/217:15 amORD - FAR
1 stop7h 36mFrontier
Deal found 9/14$202
This United Airlines deal was found by Cheapflights users on 9/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/101:52 pmFAR - ORD
Nonstop2h 10mUnited Airlines
Sun 10/128:45 amORD - FAR
Nonstop2h 11mUnited Airlines
Deal found 9/14$209
This United Airlines deal was found by Cheapflights users on 9/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/33:48 pmFAR - ORD
Nonstop2h 07mUnited Airlines
Sun 10/51:00 pmORD - FAR
Nonstop2h 08mUnited Airlines
Deal found 9/13$219
This United Airlines deal was found by Cheapflights users on 9/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/154:03 pmFAR - ORD
Nonstop2h 07mUnited Airlines
Sun 10/198:45 amORD - FAR
Nonstop2h 11mUnited Airlines
Deal found 9/14$227
This United Airlines deal was found by Cheapflights users on 9/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/3010:53 amFAR - ORD
Nonstop2h 07mUnited Airlines
Sat 10/41:00 pmORD - FAR
Nonstop2h 08mUnited Airlines
Deal found 9/14$229
This Delta deal was found by Cheapflights users on 9/15. 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 10/281:20 pmFAR - MDW
1 stop4h 23mDelta
Sat 11/13:00 pmMDW - FAR
1 stop4h 31mDelta
Deal found 9/15$229
This American Airlines deal was found by Cheapflights users on 9/13. 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.
Sat 11/112:30 pmFAR - ORD
Nonstop2h 02mAmerican Airlines
Tue 11/44:49 pmORD - FAR
Nonstop2h 01mAmerican Airlines
Deal found 9/13$232
This Delta deal was found by Cheapflights users on 9/15. 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 10/287:10 amFAR - ORD
1 stop4h 25mDelta
Sat 11/11:25 pmORD - FAR
2 stops9h 28mDelta
Deal found 9/15$234
This Frontier deal was found by Cheapflights users on 9/15. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/102:56 pmFAR - MDW
1 stop9h 28mFrontier
Mon 10/1310:56 pmMDW - FAR
2 stops15h 55mFrontier
Deal found 9/15$236

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 September 15, 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

Fri 10/10

2:56 pm-12:59 am

1 stop10h 03m

Chicago O'Hare Intl

Tue 10/14

7:15 am-2:51 pm

1 stop7h 36m

$158

FargoChicago

FAR - ORD

FARORD

Fargo Hector Field

Fri 10/10

1:52 pm-4:02 pm

Nonstop2h 10m

Chicago O'Hare Intl

Sun 10/12

8:45 am-10:56 am

Nonstop2h 11m

$209

FargoChicago

FAR - ORD

FARORD

Fargo Hector Field

Fri 10/3

3:48 pm-5:55 pm

Nonstop2h 07m

Chicago O'Hare Intl

Sun 10/5

1:00 pm-3:08 pm

Nonstop2h 08m

$219

FargoChicago

FAR - ORD

FARORD

Fargo Hector Field

Wed 10/15

4:03 pm-6:10 pm

Nonstop2h 07m

Chicago O'Hare Intl

Sun 10/19

8:45 am-10:56 am

Nonstop2h 11m

$227

FargoChicago

FAR - ORD

FARORD

Fargo Hector Field

Tue 10/28

7:10 am-11:35 am

1 stop4h 25m

Chicago O'Hare Intl

Sat 11/1

3:50 pm-7:31 pm

1 stop3h 41m

$229

FargoChicago

FAR - ORD

FARORD

Fargo Hector Field

Wed 1/7

5:00 am-11:33 am

1 stop6h 33m

Chicago O'Hare Intl

Wed 1/21

6:00 am-12:53 pm

1 stop6h 53m

$229

FargoChicago

FAR - MDW

FARMDW

Fargo Hector Field

Tue 10/28

1:20 pm-5:43 pm

1 stop4h 23m

Chicago Midway

Sat 11/1

3:00 pm-7:31 pm

1 stop4h 31m

$229

FargoChicago

FAR - ORD

FARORD

Fargo Hector Field

Tue 9/30

10:53 am-1:00 pm

Nonstop2h 07m

Chicago O'Hare Intl

Sat 10/4

1:00 pm-3:08 pm

Nonstop2h 08m

$229

MinotChicago

MOT - MDW

MOTMDW

Minot

Thu 1/1

12:48 pm-5:19 pm

1 stop4h 31m

Chicago Midway

Mon 1/5

6:45 pm-11:43 pm

1 stop4h 58m

$238

FargoChicago

FAR - ORD

FARORD

Fargo Hector Field

Sat 2/7

5:00 am-8:47 am

1 stop3h 47m

Chicago O'Hare Intl

Tue 2/10

6:00 am-12:53 pm

1 stop6h 53m

$239

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

Showing 1-10 of 56 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, August is the cheapest month in which you can book a flight from North Dakota to Illinois (average of $245). Flying from North Dakota to Illinois in March is currently the most expensive (average of $321). 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 September 15, 2025.

When flying from North Dakota to Illinois, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 September 15, 2025.

The most flights from USND to USIL are scheduled on a Monday (22 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (17 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 September 15, 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
8.0
Very good
7,954 reviews

Crew

8.5

Overall

8.0

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,954 reviews
Delta
8.0
Very good
7,954 reviews

Crew

8.5

Overall

8.0

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,929 reviews
Delta
8.0
Very good
7,954 reviews

Crew

8.5

Overall

8.0

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,954 reviews

Crew

8.5

Overall

8.0

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Frontier
5.8
Fair
3,172 reviews
Delta
8.0
Very good
7,954 reviews

Crew

8.5

Overall

8.0

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 10m. The distance between North Dakota and Illinois is about 556 mi. This flight may include one or multiple stops.

  • 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, August is the cheapest month in which you can book a flight from North Dakota to Illinois (average of $245). Flying from North Dakota to Illinois in March is currently the most expensive (average of $321). 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

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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 September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$209Average$359FlexibilityNo cancel feeOn-time71%
DeltaCheapest$218Average$461FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$229Average$343FlexibilityNo cancel feeOn-time69%

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