$328+ 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 5/21. Fares are subject to change and may not be available on all flights or dates of travel.
GFK — ORD
May 24 — May 311
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 April 24, 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 April 24, 2026.
This Delta deal was found by Cheapflights users on 4/21. 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 5/233:50 pm
GFK
- ORD
1 stop5h 30m
Delta
Tue 5/266:24 am
ORD
- GFK
1 stop3h 54m
Delta
Deal found 4/21![Delta logo]()
$411
This Kiwi.com deal was found by Cheapflights users on 4/22. 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.
Fri 5/112:51 pm
GFK
- ORD
2 stops22h 42m
Multiple Airlines
Sun 5/37:45 am
ORD
- GFK
1 stop28h 16m
Multiple Airlines
Deal found 4/22![Multiple Airlines logo]()
$449
This Delta deal was found by Cheapflights users on 4/23. 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 5/63:55 pm
GFK
- ORD
1 stop3h 57m
Delta
Sat 5/95:41 pm
ORD
- GFK
1 stop5h 22m
Delta
Deal found 4/23![Delta logo]()
$502
This Delta deal was found by Cheapflights users on 4/23. 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 5/66:40 am
GFK
- MDW
2 stops6h 03m
Delta
Sat 5/97:13 pm
MDW
- GFK
1 stop3h 50m
Delta
Deal found 4/23![Delta logo]()
$507
This Delta deal was found by Cheapflights users on 4/22. 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 5/77:15 pm
GFK
- STL
1 stop4h 06m
Delta
Mon 5/116:21 am
STL
- GFK
1 stop3h 57m
Delta
Deal found 4/22![Delta logo]()
$527
This Delta deal was found by Cheapflights users on 4/22. 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 5/223:50 pm
GFK
- ORD
1 stop5h 30m
Delta
Sun 5/245:41 pm
ORD
- GFK
1 stop5h 22m
Delta
Deal found 4/22![Delta logo]()
$651
This Delta deal was found by Cheapflights users on 4/23. 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.
Fri 5/293:50 pm
GFK
- ORD
1 stop5h 30m
Delta
Sun 5/316:24 am
ORD
- GFK
1 stop3h 54m
Delta
Deal found 4/23![Delta logo]()
$659
This Delta deal was found by Cheapflights users on 4/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/55:15 am
GFK
- ORD
2 stops7h 30m
Delta
Sat 5/96:24 am
ORD
- GFK
1 stop3h 54m
Delta
Deal found 4/20![Delta logo]()
$663
This Delta deal was found by Cheapflights users on 4/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/55:15 am
GFK
- MDW
2 stops7h 28m
Delta
Sat 5/97:13 pm
MDW
- GFK
1 stop3h 50m
Delta
Deal found 4/20![Delta logo]()
$663
This Delta deal was found by Cheapflights users on 4/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/55:15 am
GFK
- STL
1 stop6h 17m
Delta
Sat 5/96:21 am
STL
- GFK
1 stop3h 57m
Delta
Deal found 4/20![Delta logo]()
$699
This Delta deal was found by Cheapflights users on 4/21. 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 5/235:05 am
GFK
- MDW
1 stop3h 37m
Delta
Tue 5/267:13 pm
MDW
- GFK
1 stop3h 50m
Delta
Deal found 4/21![Delta logo]()
$733
This Delta deal was found by Cheapflights users on 4/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/247:15 pm
GFK
- STL
1 stop3h 58m
Delta
Mon 4/275:35 pm
STL
- GFK
1 stop25h 49m
Delta
Deal found 4/20![Delta logo]()
$804
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 April 24, 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 April 24, 2026.
This Delta deal was found by Cheapflights users on 4/22. 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 5/77:15 pm
GFK
- STL
1 stop4h 06m
Delta
Mon 5/116:21 am
STL
- GFK
1 stop3h 57m
Delta
Deal found 4/22![Delta logo]()
$527
This Delta deal was found by Cheapflights users on 4/23. 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 5/66:40 am
GFK
- ORD
2 stops6h 05m
Delta
Sat 5/91:44 pm
ORD
- GFK
2 stops9h 19m
Delta
Deal found 4/23![Delta logo]()
$587
This Delta deal was found by Cheapflights users on 4/23. 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.
Fri 5/293:50 pm
GFK
- ORD
1 stop5h 30m
Delta
Sun 5/316:24 am
ORD
- GFK
1 stop3h 54m
Delta
Deal found 4/23![Delta logo]()
$659
This Delta deal was found by Cheapflights users on 4/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/55:15 am
GFK
- ORD
2 stops7h 30m
Delta
Sat 5/96:24 am
ORD
- GFK
1 stop3h 54m
Delta
Deal found 4/20![Delta logo]()
$663
This Delta deal was found by Cheapflights users on 4/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/55:15 am
GFK
- MDW
2 stops7h 28m
Delta
Sat 5/97:13 pm
MDW
- GFK
1 stop3h 50m
Delta
Deal found 4/20![Delta logo]()
$663
This Delta deal was found by Cheapflights users on 4/23. 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.
Fri 5/223:50 pm
GFK
- ORD
1 stop5h 30m
Delta
Sun 5/246:24 am
ORD
- GFK
1 stop3h 54m
Delta
Deal found 4/23![Delta logo]()
$671
This Delta deal was found by Cheapflights users on 4/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/55:15 am
GFK
- STL
1 stop6h 17m
Delta
Sat 5/96:21 am
STL
- GFK
1 stop3h 57m
Delta
Deal found 4/20![Delta logo]()
$699
This Delta deal was found by Cheapflights users on 4/21. 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 5/235:05 am
GFK
- MDW
2 stops7h 37m
Delta
Tue 5/269:23 am
MDW
- GFK
1 stop4h 58m
Delta
Deal found 4/21![Delta logo]()
$738
This Delta deal was found by Cheapflights users on 4/23. 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.
Fri 5/85:05 am
GFK
- MDW
1 stop3h 37m
Delta
Tue 5/129:23 am
MDW
- GFK
1 stop4h 58m
Delta
Deal found 4/23![Delta logo]()
$821
This Delta deal was found by Cheapflights users on 4/21. 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 5/43:55 pm
GFK
- ORD
1 stop5h 43m
Delta
Fri 5/86:24 am
ORD
- GFK
1 stop3h 54m
Delta
Deal found 4/21![Delta logo]()
$847
This Delta deal was found by Cheapflights users on 4/21. 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 6/125:15 am
GFK
- ORD
1 stop6h 16m
Delta
Mon 6/158:52 am
ORD
- GFK
2 stops9h 13m
Delta
Deal found 4/21![Delta logo]()
$854
This Delta deal was found by Cheapflights users on 4/23. 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.
Fri 5/85:05 am
GFK
- MDW
1 stop3h 37m
Delta
Mon 5/111:59 pm
MDW
- GFK
1 stop4h 07m
Delta
Deal found 4/23![Delta logo]()
$867
This Delta deal was found by Cheapflights users on 4/22. 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 5/75:05 am
GFK
- ORD
1 stop3h 31m
Delta
Mon 5/1112:30 pm
ORD
- GFK
1 stop5h 36m
Delta
Deal found 4/22![Delta logo]()
$883
This Delta deal was found by Cheapflights users on 4/22. 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 5/75:05 am
GFK
- MDW
1 stop3h 37m
Delta
Mon 5/117:13 pm
MDW
- GFK
1 stop3h 50m
Delta
Deal found 4/22![Delta logo]()
$883
This Delta deal was found by Cheapflights users on 4/23. 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.
Fri 5/810:53 am
GFK
- ORD
2 stops9h 21m
Delta
Tue 5/128:42 am
ORD
- GFK
1 stop5h 39m
Delta
Deal found 4/23![Delta logo]()
$888
This Delta deal was found by Cheapflights users on 4/23. 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.
Fri 5/225:05 am
GFK
- MDW
2 stops7h 37m
Delta
Sun 5/247:13 pm
MDW
- GFK
1 stop3h 50m
Delta
Deal found 4/23![Delta logo]()
$984
This Delta deal was found by Cheapflights users on 4/23. 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.
Fri 5/295:05 am
GFK
- MDW
1 stop3h 37m
Delta
Sun 5/319:23 am
MDW
- GFK
1 stop4h 58m
Delta
Deal found 4/23![Delta logo]()
$1,013
This Delta deal was found by Cheapflights users on 4/19. 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 5/410:50 am
GFK
- MDW
2 stops7h 08m
Delta
Fri 5/87:13 pm
MDW
- GFK
1 stop3h 50m
Delta
Deal found 4/19![Delta logo]()
$1,092
Last-minute flights from Grand Forks to IllinoisDiscover last-minute flight deals from Grand Forks to Illinois. Data last updated April 24, 2026 and is based on user searches.
Discover last-minute flight deals from Grand Forks to Illinois. Data last updated April 24, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 4/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/247:15 pm
GFK
- STL
1 stop3h 58m
Delta
Mon 4/275:35 pm
STL
- GFK
1 stop25h 49m
Delta
Deal found 4/20![Delta logo]()
$804
This Kiwi.com deal was found by Cheapflights users on 4/22. 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.
Fri 5/112:51 pm
GFK
- ORD
2 stops22h 42m
Multiple Airlines
Sun 5/37:45 am
ORD
- GFK
1 stop28h 16m
Multiple Airlines
Deal found 4/22![Multiple Airlines logo]()
$449
This Delta deal was found by Cheapflights users on 4/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/55:15 am
GFK
- ORD
2 stops7h 30m
Delta
Sat 5/96:24 am
ORD
- GFK
1 stop3h 54m
Delta
Deal found 4/20![Delta logo]()
$663
This Delta deal was found by Cheapflights users on 4/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/55:15 am
GFK
- MDW
2 stops7h 28m
Delta
Sat 5/97:13 pm
MDW
- GFK
1 stop3h 50m
Delta
Deal found 4/20![Delta logo]()
$663
This Delta deal was found by Cheapflights users on 4/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/55:15 am
GFK
- STL
1 stop6h 17m
Delta
Sat 5/96:21 am
STL
- GFK
1 stop3h 57m
Delta
Deal found 4/20![Delta logo]()
$699
This Delta deal was found by Cheapflights users on 4/23. 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 5/63:55 pm
GFK
- ORD
1 stop3h 57m
Delta
Sat 5/95:41 pm
ORD
- GFK
1 stop5h 22m
Delta
Deal found 4/23![Delta logo]()
$502
This Delta deal was found by Cheapflights users on 4/23. 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 5/66:40 am
GFK
- MDW
2 stops6h 03m
Delta
Sat 5/97:13 pm
MDW
- GFK
1 stop3h 50m
Delta
Deal found 4/23![Delta logo]()
$507
This Delta deal was found by Cheapflights users on 4/22. 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 5/77:15 pm
GFK
- STL
1 stop4h 06m
Delta
Mon 5/116:21 am
STL
- GFK
1 stop3h 57m
Delta
Deal found 4/22![Delta logo]()
$527
This Delta deal was found by Cheapflights users on 4/22. 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 5/223:50 pm
GFK
- ORD
1 stop5h 30m
Delta
Sun 5/245:41 pm
ORD
- GFK
1 stop5h 22m
Delta
Deal found 4/22![Delta logo]()
$651
This Delta deal was found by Cheapflights users on 4/21. 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 5/233:50 pm
GFK
- ORD
1 stop5h 30m
Delta
Tue 5/266:24 am
ORD
- GFK
1 stop3h 54m
Delta
Deal found 4/21![Delta logo]()
$411
This Delta deal was found by Cheapflights users on 4/21. 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 5/235:05 am
GFK
- MDW
1 stop3h 37m
Delta
Tue 5/267:13 pm
MDW
- GFK
1 stop3h 50m
Delta
Deal found 4/21![Delta logo]()
$733
This Delta deal was found by Cheapflights users on 4/23. 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.
Fri 5/293:50 pm
GFK
- ORD
1 stop5h 30m
Delta
Sun 5/316:24 am
ORD
- GFK
1 stop3h 54m
Delta
Deal found 4/23![Delta logo]()
$659
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 April 24, 2026.
Search for one-way flight options from Grand Forks to Illinois. Find affordable one-way fares based on user searches. Data last updated April 24, 2026.
This Delta deal was found by Cheapflights users on 4/21. 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 5/217:15 pm
GFK
- STL
1 stop4h 06m
Delta
Deal found 4/21![Delta logo]()
$328
This Delta deal was found by Cheapflights users on 4/21. 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 5/1210:53 am
GFK
- STL
1 stop5h 53m
Delta
Deal found 4/21![Delta logo]()
$358
This Kiwi.com deal was found by Cheapflights users on 4/22. 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.
Fri 5/112:51 pm
GFK
- ORD
3 stops45h 32m
Multiple Airlines
Deal found 4/22![Multiple Airlines logo]()
$373
This Delta deal was found by Cheapflights users on 4/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/47:15 pm
GFK
- ORD
1 stop26h 05m
Delta
Deal found 4/20![Delta logo]()
$376
This Delta deal was found by Cheapflights users on 4/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/47:15 pm
GFK
- MDW
1 stop22h 41m
Delta
Deal found 4/20![Delta logo]()
$376
This Kiwi.com deal was found by Cheapflights users on 4/22. 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.
Fri 5/112:51 pm
GFK
- MDW
3 stops54h 40m
Multiple Airlines
Deal found 4/22![Multiple Airlines logo]()
$428
This Delta deal was found by Cheapflights users on 4/22. 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 5/13:55 pm
GFK
- ORD
1 stop5h 43m
Delta
Deal found 4/22![Delta logo]()
$540
This Delta deal was found by Cheapflights users on 4/22. 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 5/15:15 am
GFK
- MDW
2 stops7h 28m
Delta
Deal found 4/22![Delta logo]()
$545
This Delta deal was found by Cheapflights users on 4/21. 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 5/3110:53 am
GFK
- ORD
1 stop4h 04m
Delta
Deal found 4/21![Delta logo]()
$610
This Delta deal was found by Cheapflights users on 4/21. 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 5/315:05 am
GFK
- MDW
1 stop3h 37m
Delta
Deal found 4/21![Delta logo]()
$610
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 April 24, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $411 (Delta) |
One-way from | $328 (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 2,558,603 searches. Data last updated April 24, 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 ForksSt. Louis
GFK - STL
GFKSTL
Grand Forks
Thu 5/7
7:15 pm-11:21 pm
1 stop4h 06m
Lambert-St Louis
Mon 5/11
6:21 am-10:18 am
1 stop3h 57m
$527
Grand ForksChicago
GFK - ORD
GFKORD
Grand Forks
Wed 5/6
6:40 am-12:45 pm
2 stops6h 05m
Chicago O'Hare Intl
Sat 5/9
1:44 pm-11:03 pm
2 stops9h 19m
$587
Grand ForksChicago
GFK - ORD
GFKORD
Grand Forks
Fri 5/29
3:50 pm-9:20 pm
1 stop5h 30m
Chicago O'Hare Intl
Sun 5/31
6:24 am-10:18 am
1 stop3h 54m
$659
Grand ForksChicago
GFK - ORD
GFKORD
Grand Forks
Tue 5/5
5:15 am-12:45 pm
2 stops7h 30m
Chicago O'Hare Intl
Sat 5/9
6:24 am-10:18 am
1 stop3h 54m
$663
Grand ForksChicago
GFK - MDW
GFKMDW
Grand Forks
Tue 5/5
5:15 am-12:43 pm
2 stops7h 28m
Chicago Midway
Sat 5/9
7:13 pm-11:03 pm
1 stop3h 50m
$663
Grand ForksChicago
GFK - ORD
GFKORD
Grand Forks
Fri 5/22
3:50 pm-9:20 pm
1 stop5h 30m
Chicago O'Hare Intl
Sun 5/24
6:24 am-10:18 am
1 stop3h 54m
$671
Grand ForksSt. Louis
GFK - STL
GFKSTL
Grand Forks
Tue 5/5
5:15 am-11:32 am
1 stop6h 17m
Lambert-St Louis
Sat 5/9
6:21 am-10:18 am
1 stop3h 57m
$699
Grand ForksChicago
GFK - MDW
GFKMDW
Grand Forks
Sat 5/23
5:05 am-12:42 pm
2 stops7h 37m
Chicago Midway
Tue 5/26
9:23 am-2:21 pm
1 stop4h 58m
$738
Grand ForksChicago
GFK - MDW
GFKMDW
Grand Forks
Fri 5/8
5:05 am-8:42 am
1 stop3h 37m
Chicago Midway
Tue 5/12
9:23 am-2:21 pm
1 stop4h 58m
$821
Grand ForksChicago
GFK - ORD
GFKORD
Grand Forks
Mon 5/4
3:55 pm-9:38 pm
1 stop5h 43m
Chicago O'Hare Intl
Fri 5/8
6:24 am-10:18 am
1 stop3h 54m
$847
Showing 1-10 of 28 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-STL
GFK-ORD
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-STL
GFK-ORD
GFK-MDW
No data available for this route at this time. Please check back soon.
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