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$54+ 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 2/22. Fares are subject to change and may not be available on all flights or dates of travel.
FAR — ORD
Nov 25 — Dec 21
Mon 11/25
Mon 12/2
1 adult, Economy
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Cheap flight deals from North Dakota to Illinois

Discover tips and strategies to find the most affordable flight options for your journey from North Dakota (USND) to Illinois (USIL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 20, 2024.

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 November 20, 2024.

This Frontier deal was found by Cheapflights users on 11/19. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/62:29 pmFAR - ORD
1 stop10h 06mFrontier
Mon 12/97:25 amORD - FAR
1 stop6h 04mFrontier
Deal found 11/19$138
This Frontier deal was found by Cheapflights users on 11/19. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/62:29 pmFAR - MDW
1 stop9h 44mFrontier
Mon 12/97:15 amMDW - FAR
1 stop6h 14mFrontier
Deal found 11/19$138
This American Airlines deal was found by Cheapflights users on 11/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/104:15 pmFAR - ORD
Nonstop1h 54mAmerican Airlines
Wed 12/119:00 pmORD - FAR
Nonstop1h 58mAmerican Airlines
Deal found 11/19$214
This Delta deal was found by Cheapflights users on 11/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/95:54 pmFAR - ORD
1 stop4h 31mDelta
Wed 12/118:40 pmORD - FAR
1 stop3h 28mDelta
Deal found 11/19$233
This Delta deal was found by Cheapflights users on 11/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/125:40 pmBIS - STL
1 stop4h 46mDelta
Sun 12/157:15 pmSTL - BIS
1 stop5h 18mDelta
Deal found 11/19$248
This Delta deal was found by Cheapflights users on 11/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2411:43 amBIS - ORD
1 stop5h 26mDelta
Fri 12/273:18 pmORD - BIS
1 stop4h 57mDelta
Deal found 11/19$278
This American Airlines deal was found by Cheapflights users on 11/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/25:34 pmFAR - STL
1 stop4h 36mAmerican Airlines
Tue 12/105:05 amSTL - FAR
1 stop7h 42mAmerican Airlines
Deal found 11/19$278
This United Airlines deal was found by Cheapflights users on 11/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/149:00 amFAR - ORD
1 stop24h 31mUnited Airlines
Sun 12/151:00 pmORD - FAR
Nonstop2h 15mUnited Airlines
Deal found 11/20$285
This Delta deal was found by Cheapflights users on 11/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/81:15 pmFAR - MDW
1 stop5h 17mDelta
Tue 12/107:14 pmMDW - FAR
1 stop4h 54mDelta
Deal found 11/19$303
This Delta deal was found by Cheapflights users on 11/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/267:00 amFAR - STL
1 stop3h 40mDelta
Fri 11/296:00 amSTL - FAR
1 stop4h 21mDelta
Deal found 11/19$308
This American Airlines deal was found by Cheapflights users on 11/20. 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 12/286:09 amBIS - STL
1 stop6h 54mAmerican Airlines
Sat 1/47:04 amSTL - BIS
1 stop7h 28mAmerican Airlines
Deal found 11/20$334
This Mytrip deal was found by Cheapflights users on 11/19. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/99:58 pmFAR - ORD
2 stops19h 30mMultiple Airlines
Tue 12/109:10 pmORD - FAR
1 stop17h 50mMultiple Airlines
Deal found 11/19$348

Find flights from North Dakota to Illinois within your budget

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 2,629,791 searches. Data last updated November 20, 2024.

Fly from

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Fly to

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Route

Depart

Return

Price

FargoChicago

FAR - ORD

FARORD

Fargo Hector Field

Fri 12/6

2:29 pm-12:35 am

1 stop10h 06m

Chicago O'Hare Intl

Mon 12/9

7:25 am-1:29 pm

1 stop6h 04m

$138

FargoChicago

FAR - MDW

FARMDW

Fargo Hector Field

Fri 12/6

2:29 pm-12:13 am

1 stop9h 44m

Chicago Midway

Mon 12/9

7:15 am-1:29 pm

1 stop6h 14m

$138

BismarckChicago

BIS - MDW

BISMDW

Bismarck

Sat 1/11

11:40 am-5:47 pm

1 stop6h 07m

Chicago Midway

Sat 1/18

6:59 pm-11:36 pm

1 stop4h 37m

$209

BismarckChicago

BIS - ORD

BISORD

Bismarck

Sat 1/11

3:09 pm-9:58 pm

1 stop6h 49m

Chicago O'Hare Intl

Sat 1/18

6:15 am-10:59 am

1 stop4h 44m

$209

FargoChicago

FAR - ORD

FARORD

Fargo Hector Field

Tue 12/10

4:15 pm-6:09 pm

Nonstop1h 54m

Chicago O'Hare Intl

Wed 12/11

9:00 pm-10:58 pm

Nonstop1h 58m

$214

BismarckChicago

BIS - ORD

BISORD

Bismarck

Thu 1/9

1:53 pm-7:31 pm

1 stop5h 38m

Chicago O'Hare Intl

Sat 1/11

10:35 am-4:40 pm

1 stop6h 05m

$228

FargoChicago

FAR - ORD

FARORD

Fargo Hector Field

Sat 1/18

3:00 pm-9:58 pm

1 stop6h 58m

Chicago O'Hare Intl

Tue 1/21

7:10 pm-11:33 pm

1 stop4h 23m

$228

FargoChicago

FAR - MDW

FARMDW

Fargo Hector Field

Sat 1/18

5:05 am-10:36 am

1 stop5h 31m

Chicago Midway

Wed 1/22

1:26 pm-8:04 pm

1 stop6h 38m

$228

BismarckChicago

BIS - ORD

BISORD

Bismarck

Fri 1/10

6:00 am-1:14 pm

1 stop7h 14m

Chicago O'Hare Intl

Sun 1/12

8:05 am-2:26 pm

1 stop6h 21m

$248

BismarckSt. Louis

BIS - STL

BISSTL

Bismarck

Thu 12/12

5:40 pm-10:26 pm

1 stop4h 46m

Lambert-St Louis

Sun 12/15

7:15 pm-12:33 am

1 stop5h 18m

$248

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/19

Showing 1-10 of 41 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.

Travel insights for flights from North Dakota to Illinois

Get recent, data-driven insights about flights from North Dakota to Illinois including ideal travel times, pricing trends, and more.

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

Currently, September is the cheapest month in which you can book a flight from North Dakota to Illinois (average of $232). Flying from North Dakota to Illinois in June is currently the most expensive (average of $308). 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 November 20, 2024.

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 November 20, 2024.

The most flights from USND to USIL are scheduled on a Monday (18 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (17 on average).

Rainfall in Illinois by month

Plan your trip to Illinois by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Illinois ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.

Temperature in Illinois by month

Plan your trip to Illinois by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Illinois, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

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 November 20, 2024.
Get a feel of what it's like to fly with Frontier, United Airlines and Delta from North Dakota to Illinois by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,756 reviews

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta
8.0
Very good
8,756 reviews
Delta
8.0
Very good
8,756 reviews

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

United Airlines
7.4
Good
9,171 reviews
Delta
8.0
Very good
8,756 reviews

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
8,756 reviews

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Frontier
6.1
Okay
3,539 reviews
Delta
8.0
Very good
8,756 reviews

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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.

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

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $90. However, be on the lookout for offers from United Airlines and American 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, September is the cheapest month in which you can book a flight from North Dakota to Illinois (average of $232). Flying from North Dakota to Illinois in June is currently the most expensive (average of $308). 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 2,629,791 searches. Data last updated November 20, 2024.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$225Average$341FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$238Average$413FlexibilityNo cancel feeOn-time71%
DeltaCheapest$247Average$456FlexibilityNo cancel feeOn-timeN/A
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