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$371+ Cheap flights from Grand Forks (GFK) to Illinois

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/21. Fares are subject to change and may not be available on all flights or dates of travel.
GFK — ORD
Jan 24 — Jan 311
Sat 1/24
Sat 1/31
1 adult, Economy
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Cheap flight deals from Grand Forks to Illinois

Best flights from Grand Forks to Illinois
Discover carefully curated flight deals from Grand Forks to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 25, 2025.

This Delta deal was found by Cheapflights users on 12/23. 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.
Wed 1/215:00 amGFK - MDW
1 stop4h 08mDelta
Thu 2/59:53 amMDW - GFK
1 stop5h 27mDelta
Deal found 12/23$371
This Delta deal was found by Cheapflights users on 12/24. 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.
Fri 1/912:19 pmGFK - STL
1 stop4h 26mDelta
Tue 1/136:10 amSTL - GFK
1 stop5h 29mDelta
Deal found 12/24$495
This Delta deal was found by Cheapflights users on 12/23. 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 1/812:19 pmGFK - ORD
1 stop5h 44mDelta
Mon 1/128:50 amORD - GFK
1 stop6h 32mDelta
Deal found 12/23$553
This Delta deal was found by Cheapflights users on 12/23. 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 1/85:00 amGFK - MDW
1 stop4h 08mDelta
Mon 1/129:50 amMDW - GFK
1 stop5h 32mDelta
Deal found 12/23$553
This Delta deal was found by Cheapflights users on 12/23. 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.
Wed 1/712:19 pmGFK - STL
1 stop4h 26mDelta
Sun 1/115:48 pmSTL - GFK
1 stop5h 45mDelta
Deal found 12/23$706

Find flight deals from Grand Forks to Illinois

Keep the following information in mind while searching for Grand Forks to Illinois flight deals. Data was last updated December 25, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$371
(Delta)

One-way from

$293
(Kiwi.com)
Provider with most accurate pricing for Grand Forks-Chicago (CHI) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Grand Forks-Chicago (CHI) flights.
Search Deals
From Grand Forks to Illinois
Search Deals
One-way flight from Grand Forks to Illinois
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Grand Forks 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 25, 2025.
Use the filters below to find and compare flights from Grand Forks to Illinois that are best for you.

Fly from

Grand Forks

Fly to

Illinois

Route

Depart

Return

Price

Grand ForksChicago

GFK - MDW

GFKMDW

Grand Forks

Wed 1/21

5:00 am-9:08 am

1 stop4h 08m

Chicago Midway

Thu 2/5

9:53 am-3:20 pm

1 stop5h 27m

$371

Grand ForksSt. Louis

GFK - STL

GFKSTL

Grand Forks

Fri 1/9

12:19 pm-4:45 pm

1 stop4h 26m

Lambert-St Louis

Tue 1/13

6:10 am-11:39 am

1 stop5h 29m

$495

Grand ForksChicago

GFK - ORD

GFKORD

Grand Forks

Thu 1/8

12:19 pm-6:03 pm

1 stop5h 44m

Chicago O'Hare Intl

Mon 1/12

8:50 am-3:22 pm

1 stop6h 32m

$553

Grand ForksChicago

GFK - MDW

GFKMDW

Grand Forks

Thu 1/8

5:00 am-9:08 am

1 stop4h 08m

Chicago Midway

Mon 1/12

9:50 am-3:22 pm

1 stop5h 32m

$553

Grand ForksSt. Louis

GFK - STL

GFKSTL

Grand Forks

Wed 1/7

12:19 pm-4:45 pm

1 stop4h 26m

Lambert-St Louis

Sun 1/11

5:48 pm-11:33 pm

1 stop5h 45m

$706

Grand ForksChicago

GFK - ORD

GFKORD

Grand Forks

Wed 12/31

12:17 pm-8:36 pm

2 stops8h 19m

$400

Grand ForksChicago

GFK - ORD

GFKORD

Grand Forks

Thu 1/1

12:17 pm-9:34 pm

1 stop9h 17m

$400

Grand ForksChicago

GFK - MDW

GFKMDW

Grand Forks

Wed 12/31

12:17 pm-5:19 pm

1 stop5h 02m

$459

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/23

Best time to book a flight from Grand Forks to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Grand Forks 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 Grand Forks to Illinois

What is the cheapest month to book a flight from Grand Forks to Illinois?

Currently, January is the cheapest month in which you can book a flight from Grand Forks to Illinois (average of $209). Flying from Grand Forks to Illinois in March is currently the most expensive (average of $265). 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.

Related info for your journey

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

  • What airport do you fly from for flights from Grand Forks to Illinois?

    Located just 6.8 mi from the city center, Grand Forks (GFK) is the airport most travelers will use when flying to Illinois from Grand Forks.

  • How long is the flight from Grand Forks to Illinois?

    Delta can get you from Grand Forks to Illinois in just under 4h 08m. Your travel time can differ by up to . There are 627 mi between Grand Forks and Illinois.

  • What are the most popular routes from Grand Forks to Illinois?

    Most travelers choose Grand Forks - Chicago Midway, Grand Forks - Chicago O'Hare Intl or Grand Forks - Lambert-St Louis when deciding on the best route from Grand Forks to Illinois.

  • Can I find deals for flights from Grand Forks to Illinois that include hotel bookings?

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

  • How can I find direct flights from Grand Forks to Illinois?

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

  • Can I find deals for business class flights from Grand Forks to Illinois?

    Yes. Cheapflights offers flight deals from Grand Forks 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 Grand Forks to Illinois?

    Currently, January is the cheapest month in which you can book a flight from Grand Forks to Illinois (average of $209). Flying from Grand Forks to Illinois in March is currently the most expensive (average of $265). 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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