$373+ 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 9/19. Fares are subject to change and may not be available on all flights or dates of travel.
GFK — ORD
Oct 7 — Oct 141
Round-trip
1 adult, Economy
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Find cheap flights from Grand Forks to Illinois with Cheapflights
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Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Cheapest flights from Grand Forks to IllinoisExplore 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 September 7, 2026.
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 September 7, 2026.
This Delta deal was found by Cheapflights users on 9/2. 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 10/105:07 am -
1 stop3h 46m
Sun 10/116:20 am -
1 stop3h 56m
Deal found 9/2![Delta logo]()
$467
This Delta deal was found by Cheapflights users on 9/3. 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 9/187:15 pm -
1 stop4h 01m
Tue 9/2211:21 am -
1 stop6h 51m
Deal found 9/3![Delta logo]()
$537
This Delta deal was found by Cheapflights users on 9/3. 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 9/155:15 am -
2 stops7h 24m
Mon 9/217:13 pm -
1 stop3h 50m
Deal found 9/3![Delta logo]()
$679
This Delta deal was found by Cheapflights users on 9/2. 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 10/95:07 am -
1 stop3h 46m
Sat 10/105:30 pm -
1 stop5h 57m
Deal found 9/2![Delta logo]()
$745
This Delta deal was found by Cheapflights users on 9/2. 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 10/95:07 am -
1 stop3h 37m
Sat 10/105:31 pm -
1 stop5h 56m
Deal found 9/2![Delta logo]()
$745
This Delta deal was found by Cheapflights users on 9/3. 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 9/1511:02 am -
1 stop5h 57m
Mon 9/218:25 am -
1 stop6h 12m
Deal found 9/3![Delta logo]()
$794
This Delta deal was found by Cheapflights users on 9/3. 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 9/185:15 am -
1 stop6h 24m
Tue 9/226:10 am -
1 stop4h 17m
Deal found 9/3![Delta logo]()
$804
This Delta deal was found by Cheapflights users on 9/3. 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 9/185:15 am -
1 stop3h 33m
Tue 9/227:13 pm -
1 stop3h 50m
Deal found 9/3![Delta logo]()
$804
This Delta deal was found by Cheapflights users on 9/5. 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 9/207:15 pm -
1 stop4h 01m
Thu 9/246:15 am -
1 stop4h 12m
Deal found 9/5![Delta logo]()
$805
This Delta deal was found by Cheapflights users on 9/3. 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 9/510:54 am -
1 stop6h 47m
Mon 9/76:00 am -
1 stop4h 19m
Deal found 9/3![Delta logo]()
$807
This Delta deal was found by Cheapflights users on 9/2. 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 10/1010:51 am -
1 stop5h 56m
Sun 10/1110:12 am -
1 stop4h 20m
Deal found 9/2![Delta logo]()
$828
This Delta deal was found by Cheapflights users on 9/2. 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 9/177:15 pm -
1 stop4h 01m
Mon 9/216:15 am -
1 stop4h 12m
Deal found 9/2![Delta logo]()
$908
Best flights from Grand Forks to IllinoisDiscover 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 September 7, 2026.
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 September 7, 2026.
This Delta deal was found by Cheapflights users on 9/7. 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 1/135:10 am -
2 stops7h 23m
Mon 1/185:35 pm -
1 stop5h 45m
Deal found 9/7![Delta logo]()
$452
This Delta deal was found by Cheapflights users on 9/2. 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 10/105:07 am -
1 stop3h 46m
Sun 10/116:20 am -
1 stop3h 56m
Deal found 9/2![Delta logo]()
$467
This Delta deal was found by Cheapflights users on 9/7. 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 1/2110:45 am -
1 stop6h 05m
Tue 1/269:55 am -
1 stop4h 25m
Deal found 9/7![Delta logo]()
$477
This Delta deal was found by Cheapflights users on 9/7. 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 3/110:45 am -
1 stop6h 05m
Tue 3/99:55 am -
1 stop4h 25m
Deal found 9/7![Delta logo]()
$487
This Delta deal was found by Cheapflights users on 9/7. 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 1/155:10 am -
1 stop6h 41m
Mon 1/185:35 pm -
1 stop5h 45m
Deal found 9/7![Delta logo]()
$487
This Delta deal was found by Cheapflights users on 9/3. 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 9/187:15 pm -
1 stop4h 01m
Tue 9/2211:21 am -
1 stop6h 51m
Deal found 9/3![Delta logo]()
$537
This Delta deal was found by Cheapflights users on 9/7. 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 1/1110:45 am -
2 stops7h 52m
Tue 1/199:55 am -
1 stop4h 25m
Deal found 9/7![Delta logo]()
$546
This Delta deal was found by Cheapflights users on 9/7. 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 1/2410:45 am -
1 stop6h 05m
Fri 1/2912:30 pm -
1 stop6h 45m
Deal found 9/7![Delta logo]()
$645
This Delta deal was found by Cheapflights users on 9/3. 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 9/185:15 am -
1 stop6h 24m
Tue 9/226:10 am -
1 stop4h 17m
Deal found 9/3![Delta logo]()
$804
This Delta deal was found by Cheapflights users on 9/3. 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 9/185:15 am -
1 stop3h 33m
Tue 9/227:13 pm -
1 stop3h 50m
Deal found 9/3![Delta logo]()
$804
This Delta deal was found by Cheapflights users on 9/2. 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 10/95:07 am -
1 stop3h 46m
Sat 10/101:55 pm -
2 stops9h 32m
Deal found 9/2![Delta logo]()
$891
This Delta deal was found by Cheapflights users on 9/2. 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 9/177:15 pm -
1 stop4h 01m
Mon 9/216:15 am -
1 stop4h 12m
Deal found 9/2![Delta logo]()
$908
This Delta deal was found by Cheapflights users on 9/5. 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 9/207:15 pm -
1 stop4h 01m
Thu 9/246:40 am -
2 stops11h 32m
Deal found 9/5![Delta logo]()
$1,007
Last-minute flights from Grand Forks to IllinoisDiscover last-minute flight deals from Grand Forks to Illinois. Data last updated September 7, 2026 and is based on user searches.
Discover last-minute flight deals from Grand Forks to Illinois. Data last updated September 7, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 9/3. 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 9/510:54 am -
1 stop6h 47m
Mon 9/76:00 am -
1 stop4h 19m
Deal found 9/3![Delta logo]()
$807
This Delta deal was found by Cheapflights users on 9/3. 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 9/510:54 am -
2 stops6h 05m
Mon 9/71:51 pm -
1 stop4h 17m
Deal found 9/3![Delta logo]()
$1,048
This Delta deal was found by Cheapflights users on 9/3. 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 9/155:15 am -
2 stops7h 24m
Mon 9/217:13 pm -
1 stop3h 50m
Deal found 9/3![Delta logo]()
$679
This Delta deal was found by Cheapflights users on 9/3. 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 9/1511:02 am -
1 stop5h 57m
Mon 9/218:25 am -
1 stop6h 12m
Deal found 9/3![Delta logo]()
$794
This Delta deal was found by Cheapflights users on 9/2. 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 9/177:15 pm -
1 stop4h 01m
Mon 9/216:15 am -
1 stop4h 12m
Deal found 9/2![Delta logo]()
$908
This Delta deal was found by Cheapflights users on 9/3. 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 9/187:15 pm -
1 stop4h 01m
Tue 9/2211:21 am -
1 stop6h 51m
Deal found 9/3![Delta logo]()
$537
This Delta deal was found by Cheapflights users on 9/3. 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 9/185:15 am -
1 stop6h 24m
Tue 9/226:10 am -
1 stop4h 17m
Deal found 9/3![Delta logo]()
$804
This Delta deal was found by Cheapflights users on 9/3. 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 9/185:15 am -
1 stop3h 33m
Tue 9/227:13 pm -
1 stop3h 50m
Deal found 9/3![Delta logo]()
$804
This Delta deal was found by Cheapflights users on 9/5. 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 9/207:15 pm -
1 stop4h 01m
Thu 9/246:15 am -
1 stop4h 12m
Deal found 9/5![Delta logo]()
$805
This Delta deal was found by Cheapflights users on 9/2. 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 10/95:07 am -
1 stop3h 46m
Sat 10/105:30 pm -
1 stop5h 57m
Deal found 9/2![Delta logo]()
$745
This Delta deal was found by Cheapflights users on 9/2. 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 10/95:07 am -
1 stop3h 37m
Sat 10/105:31 pm -
1 stop5h 56m
Deal found 9/2![Delta logo]()
$745
This Delta deal was found by Cheapflights users on 9/2. 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 10/105:07 am -
1 stop3h 46m
Sun 10/116:20 am -
1 stop3h 56m
Deal found 9/2![Delta logo]()
$467
One-way flights from Grand Forks to IllinoisSearch for one-way flight options from Grand Forks to Illinois. Find affordable one-way fares based on user searches. Data last updated September 7, 2026.
Search for one-way flight options from Grand Forks to Illinois. Find affordable one-way fares based on user searches. Data last updated September 7, 2026.
This Delta deal was found by Cheapflights users on 9/3. 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 9/1911:02 am -
1 stop5h 57m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Delta logo]()
$373
This Delta deal was found by Cheapflights users on 9/3. 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 9/185:15 am -
1 stop6h 24m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Delta logo]()
$535
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 September 7, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $467 (Delta) |
One-way from | $373 (Delta) |
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 7,457,451 searches. Data last updated September 7, 2026.
Use the filters below to find and compare flights from Grand Forks to Illinois that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Grand ForksChicago
GFK Grand Forks - ORD Chicago O'Hare Intl
GFKORD
Grand Forks
Sat 9/19
11:02 am-8:30 pm
2 stops9h 28m
Chicago O'Hare Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$378
Grand ForksChicago
GFK Grand Forks - MDW Chicago Midway
GFKMDW
Grand Forks
Wed 1/13
5:10 am-12:33 pm
2 stops7h 23m
Chicago Midway
Mon 1/18
5:35 pm-11:20 pm
1 stop5h 45m
$452
Grand ForksChicago
GFK Grand Forks - ORD Chicago O'Hare Intl
GFKORD
Grand Forks
Sat 10/10
5:07 am-8:53 am
1 stop3h 46m
Chicago O'Hare Intl
Sun 10/11
6:20 am-10:16 am
1 stop3h 56m
$467
Grand ForksChicago
GFK Grand Forks - MDW Chicago Midway
GFKMDW
Grand Forks
Thu 1/21
10:45 am-4:50 pm
1 stop6h 05m
Chicago Midway
Tue 1/26
9:55 am-2:20 pm
1 stop4h 25m
$477
Grand ForksChicago
GFK Grand Forks - MDW Chicago Midway
GFKMDW
Grand Forks
Mon 3/1
10:45 am-4:50 pm
1 stop6h 05m
Chicago Midway
Tue 3/9
9:55 am-2:20 pm
1 stop4h 25m
$487
Grand ForksChicago
GFK Grand Forks - MDW Chicago Midway
GFKMDW
Grand Forks
Fri 1/15
5:10 am-11:51 am
1 stop6h 41m
Chicago Midway
Mon 1/18
5:35 pm-11:20 pm
1 stop5h 45m
$487
Quickest round-trip
Grand ForksChicago
GFK Grand Forks - ORD Chicago O'Hare Intl
GFKORD
Grand Forks
Fri 9/18
5:15 am-11:39 am
1 stop6h 24m
Chicago O'Hare Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$535
Grand ForksSt. Louis
GFK Grand Forks - STL Lambert-St Louis
GFKSTL
Grand Forks
Fri 9/18
7:15 pm-11:16 pm
1 stop4h 01m
Lambert-St Louis
Tue 9/22
11:21 am-6:12 pm
1 stop6h 51m
$537
Grand ForksChicago
GFK Grand Forks - MDW Chicago Midway
GFKMDW
Grand Forks
Mon 1/11
10:45 am-6:37 pm
2 stops7h 52m
Chicago Midway
Tue 1/19
9:55 am-2:20 pm
1 stop4h 25m
$546
Grand ForksChicago
GFK Grand Forks - MDW Chicago Midway
GFKMDW
Grand Forks
Sun 1/24
10:45 am-4:50 pm
1 stop6h 05m
Chicago Midway
Fri 1/29
12:30 pm-7:15 pm
1 stop6h 45m
$645
Showing 1-10 of 15 resultsSorted by cheapest first
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.
GFK-ORD
GFK-STL
GFK-MDW
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
GFK-USIL
GFK-ORD
GFK-STL
GFK-MDW
No data available for this route at this time. Please check back soon.
Related info for your journey
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