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$154+ Cheap flights from Grand Forks (GFK) 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 7/10. Fares are subject to change and may not be available on all flights or dates of travel.
GFK — ORD
Jul 6 — Jul 131
Sun 7/6
Sun 7/13
1 adult, Economy
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Cheap 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 July 1, 2025.

Round-trip from

$347
(Delta)

One-way from

$154
(Mytrip)
From Grand Forks to Illinois
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One-way flight from Grand Forks to Illinois
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Find 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 July 1, 2025.

This Delta deal was found by Cheapflights users on 6/29. 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 7/294:23 pmGFK - ORD
1 stop6h 28mDelta
Tue 8/56:00 amORD - GFK
1 stop5h 37mDelta
Deal found 6/29$347
This Delta deal was found by Cheapflights users on 6/29. 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 7/2912:17 pmGFK - MDW
1 stop5h 22mDelta
Tue 8/57:21 pmMDW - GFK
1 stop3h 43mDelta
Deal found 6/29$347
This Delta deal was found by Cheapflights users on 7/1. 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 7/165:40 amGFK - STL
2 stops7h 41mDelta
Sun 7/206:30 amSTL - GFK
1 stop5h 07mDelta
Deal found 7/1$573

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 July 1, 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

Tue 7/29

4:23 pm-10:51 pm

1 stop6h 28m

Chicago O'Hare Intl

Tue 8/5

6:00 am-11:37 am

1 stop5h 37m

$347

Grand ForksChicago

GFK - MDW

GFKMDW

Grand Forks

Wed 8/20

12:13 pm-5:37 pm

1 stop5h 24m

Chicago Midway

Wed 8/27

9:15 am-3:40 pm

1 stop6h 25m

$347

Grand ForksSt. Louis

GFK - STL

GFKSTL

Grand Forks

Wed 7/16

5:40 am-1:21 pm

2 stops7h 41m

Lambert-St Louis

Sun 7/20

6:30 am-11:37 am

1 stop5h 07m

$573

Grand ForksChicago

GFK - ORD

GFKORD

Grand Forks

Thu 7/10

12:42 pm-6:03 am

1 stop17h 21m

$154

Grand ForksChicago

GFK - ORD

GFKORD

Grand Forks

Mon 7/28

4:23 pm-10:51 pm

1 stop6h 28m

$299

Grand ForksSt. Louis

GFK - STL

GFKSTL

Grand Forks

Mon 7/7

5:40 am-10:33 am

1 stop4h 53m

$459

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/30

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, August is the cheapest month in which you can book a flight from Grand Forks to Illinois (average of $245). Flying from Grand Forks 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.

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 July 1, 2025.
See what other customers who have flown with Delta from Grand Forks to Illinois have to say. 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
7,973 reviews

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Comfort

7.9

Overall

8.0

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
7,973 reviews
Delta
8.0
Very good
7,973 reviews

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Comfort

7.9

Overall

8.0

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 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.

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

    Most travelers choose Grand Forks - Chicago O'Hare Intl, Grand Forks - Chicago Midway 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, August is the cheapest month in which you can book a flight from Grand Forks to Illinois (average of $245). Flying from Grand Forks 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.

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Top airline flying from Grand Forks to Illinois

Discover the top airline that operate flights from Grand Forks 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 July 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$428Average$463FlexibilityNo cancel feeOn-timeN/A

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