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Illinois

$89+ 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 10/21. Fares are subject to change and may not be available on all flights or dates of travel.
FAR — ORD
Aug 27 — Sep 31
Wed 8/27
Wed 9/3
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 August 22, 2025.

Round-trip from

$148
(Priceline)

One-way from

$89
(Frontier)

Popular in

February

Cheapest in

January

Average price

$290

Good round-trip deal

$316 or less

Good one-way deal

$273 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 ($5 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($3 potential savings vs. average RT price).
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Average for round-trip flights in August 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 August 22, 2025.

This Priceline deal was found by Cheapflights users on 8/21. 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 9/122:31 pmFAR - ORD
1 stop9h 28mFrontier
Sun 9/146:00 amORD - FAR
1 stop7h 46mFrontier
Deal found 8/21$148
This Priceline deal was found by Cheapflights users on 8/20. 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.
Tue 10/143:40 pmFAR - ORD
1 stop8h 13mFrontier
Tue 10/217:15 amORD - FAR
1 stop7h 36mFrontier
Deal found 8/20$163
This Priceline deal was found by Cheapflights users on 8/21. 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 9/192:31 pmFAR - ORD
1 stop9h 28mFrontier
Mon 9/226:00 amORD - FAR
1 stop7h 46mFrontier
Deal found 8/21$173
This Priceline deal was found by Cheapflights users on 8/21. 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 8/252:31 pmFAR - ORD
1 stop10h 01mFrontier
Wed 8/277:20 amORD - FAR
1 stop7h 03mFrontier
Deal found 8/21$188
This FlightHub deal was found by Cheapflights users on 8/20. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/203:18 pmFAR - ORD
1 stop19h 19mFrontier
Sun 8/246:00 amORD - FAR
1 stop7h 46mFrontier
Deal found 8/20$195
This Frontier deal was found by Cheapflights users on 8/21. 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 8/222:31 pmFAR - ORD
1 stop10h 01mFrontier
Sun 8/246:00 amORD - FAR
1 stop7h 46mFrontier
Deal found 8/21$198
This Priceline deal was found by Cheapflights users on 8/19. 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.
Thu 9/42:31 pmFAR - ORD
1 stop9h 28mFrontier
Mon 9/86:00 amORD - FAR
1 stop7h 46mFrontier
Deal found 8/19$203
This Delta deal was found by Cheapflights users on 8/21. 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.
Sat 9/65:00 amFAR - ORD
1 stop3h 24mDelta
Tue 9/92:00 pmORD - FAR
2 stops9h 47mDelta
Deal found 8/21$204
This FlightHub deal was found by Cheapflights users on 8/21. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/222:31 pmFAR - STL
1 stop18h 40mFrontier
Sun 8/247:54 pmSTL - FAR
1 stop17h 52mFrontier
Deal found 8/21$205
This FlightHub deal was found by Cheapflights users on 8/20. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/282:31 pmFAR - ORD
1 stop20h 06mFrontier
Sun 8/3111:44 amORD - FAR
1 stop26h 02mFrontier
Deal found 8/20$205
This FlightHub deal was found by Cheapflights users on 8/21. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/93:09 pmFAR - MDW
1 stop9h 27mFrontier
Mon 10/1310:31 amMDW - FAR
1 stop28h 20mFrontier
Deal found 8/21$205
This American Airlines deal was found by Cheapflights users on 8/20. 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 9/135:41 pmFAR - ORD
Nonstop2h 07mAmerican Airlines
Tue 9/163:13 pmORD - FAR
Nonstop1h 58mAmerican Airlines
Deal found 8/20$209

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 August 22, 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 9/12

2:31 pm-11:59 pm

1 stop9h 28m

Chicago O'Hare Intl

Sun 9/14

6:00 am-1:46 pm

1 stop7h 46m

$148

FargoChicago

FAR - ORD

FARORD

Fargo Hector Field

Tue 10/14

3:40 pm-11:53 pm

1 stop8h 13m

Chicago O'Hare Intl

Tue 10/21

7:15 am-2:51 pm

1 stop7h 36m

$163

FargoChicago

FAR - ORD

FARORD

Fargo Hector Field

Fri 9/19

2:31 pm-11:59 pm

1 stop9h 28m

Chicago O'Hare Intl

Mon 9/22

6:00 am-1:46 pm

1 stop7h 46m

$173

FargoChicago

FAR - MDW

FARMDW

Fargo Hector Field

Thu 1/22

7:00 am-1:08 pm

1 stop6h 08m

Chicago Midway

Mon 1/26

2:00 pm-8:11 pm

1 stop6h 11m

$179

FargoChicago

FAR - ORD

FARORD

Fargo Hector Field

Mon 10/13

3:09 pm-12:59 am

1 stop9h 50m

Chicago O'Hare Intl

Tue 10/21

7:15 am-2:51 pm

1 stop7h 36m

$188

FargoChicago

FAR - ORD

FARORD

Fargo Hector Field

Sun 10/19

3:09 pm-11:53 pm

1 stop8h 44m

Chicago O'Hare Intl

Tue 10/21

7:15 am-2:51 pm

1 stop7h 36m

$188

FargoChicago

FAR - ORD

FARORD

Fargo Hector Field

Mon 8/25

2:31 pm-12:32 am

1 stop10h 01m

Chicago O'Hare Intl

Wed 8/27

7:20 am-2:23 pm

1 stop7h 03m

$188

FargoChicago

FAR - ORD

FARORD

Fargo Hector Field

Tue 10/14

3:40 pm-11:53 pm

1 stop8h 13m

Chicago O'Hare Intl

Thu 10/16

6:50 am-2:05 pm

1 stop7h 15m

$188

FargoChicago

FAR - ORD

FARORD

Fargo Hector Field

Fri 10/3

2:31 pm-11:59 pm

1 stop9h 28m

Chicago O'Hare Intl

Sun 10/5

5:35 am-1:46 pm

1 stop8h 11m

$198

FargoChicago

FAR - ORD

FARORD

Fargo Hector Field

Fri 10/10

2:56 pm-12:59 am

1 stop10h 03m

Chicago O'Hare Intl

Sun 10/12

6:50 am-2:05 pm

1 stop7h 15m

$198

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/21

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, 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 August 22, 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 August 22, 2025.

The most flights from USND to USIL are scheduled on a Monday (22 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (8 on average).

How much does it cost to fly round-trip from North Dakota to Illinois?

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 August 22, 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
7,981 reviews

Food

7.3

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.9

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
7,981 reviews
Delta
8.0
Very good
7,981 reviews

Food

7.3

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.9

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
8,930 reviews
Delta
8.0
Very good
7,981 reviews

Food

7.3

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.9

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
7,981 reviews

Food

7.3

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.9

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
3,207 reviews
Delta
8.0
Very good
7,981 reviews

Food

7.3

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.9

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 18m. The distance between North Dakota and Illinois is about 714 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

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 August 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$209Average$366FlexibilityNo cancel feeOn-time71%
DeltaCheapest$218Average$456FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$229Average$344FlexibilityNo cancel feeOn-time69%

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