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$355+ 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 1/28. Fares are subject to change and may not be available on all flights or dates of travel.
GFK — ORD
Jan 14 — Jan 211
Wed 1/14
Wed 1/21
1 adult, Economy
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Cheap flight deals from Grand Forks to Illinois

Cheapest flights from Grand Forks to Illinois
Explore the most affordable flight options available from Grand Forks to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 15, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2310:19 pmGFK - ORD
2 stops25h 53mMultiple Airlines
Fri 1/21:27 pmORD - GFK
1 stop21h 18mMultiple Airlines
Deal found 12/13$485
This Delta deal was found by Cheapflights users on 12/15. 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 12/305:40 pmGFK - STL
1 stop4h 36mDelta
Sat 1/36:05 amSTL - GFK
1 stop5h 32mDelta
Deal found 12/15$487
This Delta deal was found by Cheapflights users on 12/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2112:17 pmGFK - ORD
1 stop5h 30mDelta
Sat 12/2710:05 amORD - GFK
1 stop6h 49mDelta
Deal found 12/13$492
This Delta deal was found by Cheapflights users on 12/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2112:17 pmGFK - MDW
1 stop5h 02mDelta
Tue 12/305:59 pmMDW - GFK
1 stop5h 23mDelta
Deal found 12/13$492
This Delta deal was found by Cheapflights users on 12/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2112:17 pmGFK - ORD
1 stop5h 30mDelta
Mon 12/2910:05 amORD - GFK
1 stop6h 49mDelta
Deal found 12/13$507
This Delta deal was found by Cheapflights users on 12/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2112:17 pmGFK - MDW
1 stop5h 02mDelta
Fri 1/211:48 amMDW - GFK
1 stop5h 06mDelta
Deal found 12/13$507
This Kiwi.com deal was found by Cheapflights users on 12/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2112:22 pmGFK - ORD
2 stops23h 09mMultiple Airlines
Fri 1/21:27 pmORD - GFK
1 stop21h 18mMultiple Airlines
Deal found 12/13$551
This Delta deal was found by Cheapflights users on 12/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2112:17 pmGFK - ORD
1 stop5h 30mDelta
Sun 12/286:35 amORD - GFK
1 stop5h 02mDelta
Deal found 12/13$553
This Delta deal was found by Cheapflights users on 12/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/225:00 amGFK - ORD
1 stop6h 50mDelta
Sat 12/2710:05 amORD - GFK
1 stop6h 49mDelta
Deal found 12/13$573
This Delta deal was found by Cheapflights users on 12/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/225:00 amGFK - MDW
1 stop6h 06mDelta
Tue 12/305:59 pmMDW - GFK
1 stop5h 23mDelta
Deal found 12/13$573
This Delta deal was found by Cheapflights users on 12/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/194:40 pmGFK - ORD
1 stop5h 00mDelta
Sat 12/2710:05 amORD - GFK
1 stop6h 49mDelta
Deal found 12/13$577
This Kiwi.com deal was found by Cheapflights users on 12/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2310:19 pmGFK - ORD
2 stops25h 53mMultiple Airlines
Mon 12/291:32 pmORD - GFK
1 stop23h 13mMultiple Airlines
Deal found 12/13$579

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 15, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$355
(Delta)
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

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 15, 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 - ORD

GFKORD

Grand Forks

Wed 2/18

12:17 pm-6:01 pm

1 stop5h 44m

Chicago O'Hare Intl

Sat 2/28

8:52 am-3:31 pm

1 stop6h 39m

$355

Grand ForksChicago

GFK - ORD

GFKORD

Grand Forks

Wed 1/28

5:00 am-8:40 am

1 stop3h 40m

Chicago O'Hare Intl

Wed 2/4

6:15 am-11:39 am

1 stop5h 24m

$355

Grand ForksChicago

GFK - MDW

GFKMDW

Grand Forks

Wed 1/28

5:00 am-9:08 am

1 stop4h 08m

Chicago Midway

Wed 2/4

9:53 am-3:20 pm

1 stop5h 27m

$355

Grand ForksChicago

GFK - MDW

GFKMDW

Grand Forks

Wed 2/18

5:00 am-9:06 am

1 stop4h 06m

Chicago Midway

Sat 2/28

5:00 pm-11:10 pm

1 stop6h 10m

$355

Grand ForksChicago

GFK - MDW

GFKMDW

Grand Forks

Sat 1/17

12:19 pm-4:16 pm

1 stop3h 57m

Chicago Midway

Tue 1/20

9:50 am-3:22 pm

1 stop5h 32m

$355

Grand ForksChicago

GFK - ORD

GFKORD

Grand Forks

Fri 2/13

5:00 am-8:40 am

1 stop3h 40m

Chicago O'Hare Intl

Mon 2/16

8:52 am-3:31 pm

1 stop6h 39m

$367

Grand ForksChicago

GFK - ORD

GFKORD

Grand Forks

Thu 1/8

5:00 am-8:40 am

1 stop3h 40m

Chicago O'Hare Intl

Thu 1/22

6:15 am-11:39 am

1 stop5h 24m

$371

Grand ForksChicago

GFK - MDW

GFKMDW

Grand Forks

Thu 1/8

5:00 am-9:08 am

1 stop4h 08m

Chicago Midway

Thu 1/22

9:50 am-3:22 pm

1 stop5h 32m

$371

Grand ForksChicago

GFK - MDW

GFKMDW

Grand Forks

Thu 1/1

12:17 pm-5:19 pm

1 stop5h 02m

Chicago Midway

Thu 1/15

9:50 am-3:22 pm

1 stop5h 32m

$459

Grand ForksSt. Louis

GFK - STL

GFKSTL

Grand Forks

Tue 12/30

5:40 pm-10:16 pm

1 stop4h 36m

Lambert-St Louis

Sat 1/3

6:05 am-11:37 am

1 stop5h 32m

$487

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/14

Showing 1-10 of 17 results
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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, February 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 $267). 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 5h 44m. Your travel time can differ by up to . There are 612 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, February 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 $267). 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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