$338+ 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 5/23. Fares are subject to change and may not be available on all flights or dates of travel.
GFK — ORD
May 10 — May 171
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 10, 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 10, 2026.
This Delta deal was found by Cheapflights users on 4/8. 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 9/237:15 pm
GFK
- STL
1 stop3h 46m
Delta
Sat 9/266:30 am
STL
- GFK
1 stop3h 40m
Delta
Deal found 4/8![Delta logo]()
$345
This Delta deal was found by Cheapflights users on 4/9. 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 4/243:55 pm
GFK
- ORD
1 stop3h 57m
Delta
Tue 4/286:25 am
ORD
- GFK
1 stop3h 50m
Delta
Deal found 4/9![Delta logo]()
$429
This Delta deal was found by Cheapflights users on 4/6. 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 9/2210:45 am
GFK
- ORD
1 stop6h 03m
Delta
Sun 9/276:00 am
ORD
- GFK
1 stop4h 10m
Delta
Deal found 4/6![Delta logo]()
$433
This Delta deal was found by Cheapflights users on 4/8. 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 6/305:15 am
GFK
- ORD
1 stop6h 16m
Delta
Thu 8/207:10 am
ORD
- GFK
2 stops10h 55m
Delta
Deal found 4/8![Delta logo]()
$436
This Delta deal was found by Cheapflights users on 4/10. 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 5/17:15 pm
GFK
- STL
1 stop3h 58m
Delta
Mon 5/49:26 am
STL
- GFK
1 stop4h 59m
Delta
Deal found 4/10![Delta logo]()
$447
This Delta deal was found by Cheapflights users on 4/7. 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 4/243:55 pm
GFK
- ORD
1 stop3h 57m
Delta
Sun 4/266:25 am
ORD
- GFK
1 stop3h 50m
Delta
Deal found 4/7![Delta logo]()
$449
This Delta deal was found by Cheapflights users on 4/7. 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 7/2310:45 am
GFK
- ORD
1 stop6h 14m
Delta
Sun 7/266:30 am
ORD
- GFK
1 stop3h 40m
Delta
Deal found 4/7![Delta logo]()
$457
This Delta deal was found by Cheapflights users on 4/9. 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
Tue 4/286:20 am
STL
- GFK
1 stop3h 55m
Delta
Deal found 4/9![Delta logo]()
$478
This Delta deal was found by Cheapflights users on 4/7. 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 7/235:15 am
GFK
- MDW
2 stops7h 18m
Delta
Sun 7/267:06 pm
MDW
- GFK
1 stop3h 59m
Delta
Deal found 4/7![Delta logo]()
$532
This Delta deal was found by Cheapflights users on 4/6. 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 9/225:15 am
GFK
- MDW
2 stops7h 15m
Delta
Sun 9/279:20 am
MDW
- GFK
1 stop5h 00m
Delta
Deal found 4/6![Delta logo]()
$570
This Delta deal was found by Cheapflights users on 4/5. 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.
Sat 5/1610:53 am
GFK
- ORD
1 stop5h 58m
Delta
Tue 5/266:24 am
ORD
- GFK
1 stop3h 54m
Delta
Deal found 4/5![Delta logo]()
$641
This Delta deal was found by Cheapflights users on 4/6. 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 7/315:15 am
GFK
- MDW
2 stops7h 18m
Delta
Sun 8/27:06 pm
MDW
- GFK
1 stop3h 59m
Delta
Deal found 4/6![Delta logo]()
$752
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 10, 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 10, 2026.
This Delta deal was found by Cheapflights users on 4/8. 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 9/237:15 pm
GFK
- STL
1 stop3h 46m
Delta
Sat 9/266:30 am
STL
- GFK
1 stop3h 40m
Delta
Deal found 4/8![Delta logo]()
$345
This Delta deal was found by Cheapflights users on 4/9. 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 4/243:55 pm
GFK
- ORD
1 stop3h 57m
Delta
Tue 4/286:25 am
ORD
- GFK
1 stop3h 50m
Delta
Deal found 4/9![Delta logo]()
$429
This Delta deal was found by Cheapflights users on 4/6. 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 9/2210:45 am
GFK
- ORD
1 stop6h 03m
Delta
Sun 9/276:00 am
ORD
- GFK
1 stop4h 10m
Delta
Deal found 4/6![Delta logo]()
$433
This Delta deal was found by Cheapflights users on 4/8. 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 6/305:15 am
GFK
- ORD
1 stop6h 16m
Delta
Thu 8/207:10 am
ORD
- GFK
2 stops10h 55m
Delta
Deal found 4/8![Delta logo]()
$436
This Delta deal was found by Cheapflights users on 4/10. 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 5/17:15 pm
GFK
- STL
1 stop3h 58m
Delta
Mon 5/49:26 am
STL
- GFK
1 stop4h 59m
Delta
Deal found 4/10![Delta logo]()
$447
This Delta deal was found by Cheapflights users on 4/9. 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
Tue 4/286:20 am
STL
- GFK
1 stop3h 55m
Delta
Deal found 4/9![Delta logo]()
$478
This Delta deal was found by Cheapflights users on 4/6. 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 9/225:15 am
GFK
- MDW
2 stops7h 15m
Delta
Sun 9/279:20 am
MDW
- GFK
1 stop5h 00m
Delta
Deal found 4/6![Delta logo]()
$570
This Delta deal was found by Cheapflights users on 4/5. 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.
Sat 5/1610:53 am
GFK
- ORD
2 stops9h 21m
Delta
Tue 5/266:24 am
ORD
- GFK
1 stop3h 54m
Delta
Deal found 4/5![Delta logo]()
$646
This Delta deal was found by Cheapflights users on 4/6. 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 7/3110:45 am
GFK
- ORD
1 stop4h 20m
Delta
Sun 8/26:12 pm
ORD
- GFK
1 stop4h 53m
Delta
Deal found 4/6![Delta logo]()
$655
This Delta deal was found by Cheapflights users on 4/6. 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 4/213:55 pm
GFK
- ORD
1 stop5h 43m
Delta
Sat 4/256:25 am
ORD
- GFK
1 stop3h 50m
Delta
Deal found 4/6![Delta logo]()
$714
This Delta deal was found by Cheapflights users on 4/8. 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 4/223:55 pm
GFK
- ORD
1 stop5h 43m
Delta
Sun 4/266:25 am
ORD
- GFK
1 stop3h 50m
Delta
Deal found 4/8![Delta logo]()
$734
This Delta deal was found by Cheapflights users on 4/6. 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 7/315:15 am
GFK
- MDW
2 stops7h 18m
Delta
Sun 8/27:06 pm
MDW
- GFK
1 stop3h 59m
Delta
Deal found 4/6![Delta logo]()
$752
This Delta deal was found by Cheapflights users on 4/6. 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 4/215:15 am
GFK
- MDW
2 stops7h 28m
Delta
Sat 4/252:12 pm
MDW
- GFK
1 stop5h 12m
Delta
Deal found 4/6![Delta logo]()
$799
This Delta deal was found by Cheapflights users on 4/9. 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 4/245:15 am
GFK
- MDW
2 stops7h 28m
Delta
Tue 4/282:12 pm
MDW
- GFK
1 stop5h 12m
Delta
Deal found 4/9![Delta logo]()
$799
This Delta deal was found by Cheapflights users on 4/5. 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.
Sat 5/1610:53 am
GFK
- MDW
2 stops7h 40m
Delta
Tue 5/269:23 am
MDW
- GFK
1 stop4h 58m
Delta
Deal found 4/5![Delta logo]()
$942
This Delta deal was found by Cheapflights users on 4/8. 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 4/226:40 am
GFK
- MDW
2 stops6h 03m
Delta
Sun 4/267:16 pm
MDW
- GFK
1 stop3h 48m
Delta
Deal found 4/8![Delta logo]()
$964
This Delta deal was found by Cheapflights users on 4/7. 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 7/235:15 am
GFK
- MDW
2 stops7h 18m
Delta
Sun 7/269:20 am
MDW
- GFK
2 stops8h 45m
Delta
Deal found 4/7![Delta logo]()
$1,007
This Delta deal was found by Cheapflights users on 4/7. 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 7/125:15 am
GFK
- MDW
2 stops7h 18m
Delta
Thu 7/167:06 pm
MDW
- GFK
1 stop3h 59m
Delta
Deal found 4/7![Delta logo]()
$1,022
Last-minute flights from Grand Forks to IllinoisDiscover last-minute flight deals from Grand Forks to Illinois. Data last updated April 10, 2026 and is based on user searches.
Discover last-minute flight deals from Grand Forks to Illinois. Data last updated April 10, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 4/6. 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 4/213:55 pm
GFK
- ORD
1 stop5h 43m
Delta
Sat 4/256:25 am
ORD
- GFK
1 stop3h 50m
Delta
Deal found 4/6![Delta logo]()
$714
This Delta deal was found by Cheapflights users on 4/6. 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 4/215:15 am
GFK
- MDW
2 stops7h 28m
Delta
Sat 4/252:12 pm
MDW
- GFK
1 stop5h 12m
Delta
Deal found 4/6![Delta logo]()
$799
This Delta deal was found by Cheapflights users on 4/7. 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 4/223:55 pm
GFK
- ORD
1 stop3h 57m
Delta
Sun 4/266:25 am
ORD
- GFK
1 stop3h 50m
Delta
Deal found 4/7![Delta logo]()
$724
This Delta deal was found by Cheapflights users on 4/7. 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 4/2210:50 am
GFK
- MDW
2 stops7h 08m
Delta
Sun 4/267:16 pm
MDW
- GFK
1 stop3h 48m
Delta
Deal found 4/7![Delta logo]()
$904
This Delta deal was found by Cheapflights users on 4/9. 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 4/243:55 pm
GFK
- ORD
1 stop3h 57m
Delta
Tue 4/286:25 am
ORD
- GFK
1 stop3h 50m
Delta
Deal found 4/9![Delta logo]()
$429
This Delta deal was found by Cheapflights users on 4/7. 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 4/243:55 pm
GFK
- ORD
1 stop3h 57m
Delta
Sun 4/266:25 am
ORD
- GFK
1 stop3h 50m
Delta
Deal found 4/7![Delta logo]()
$449
This Delta deal was found by Cheapflights users on 4/9. 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
Tue 4/286:20 am
STL
- GFK
1 stop3h 55m
Delta
Deal found 4/9![Delta logo]()
$478
This Delta deal was found by Cheapflights users on 4/10. 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 5/17:15 pm
GFK
- STL
1 stop3h 58m
Delta
Mon 5/49:26 am
STL
- GFK
1 stop4h 59m
Delta
Deal found 4/10![Delta logo]()
$447
This Delta deal was found by Cheapflights users on 4/5. 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.
Sat 5/1610:53 am
GFK
- ORD
1 stop5h 58m
Delta
Tue 5/266:24 am
ORD
- GFK
1 stop3h 54m
Delta
Deal found 4/5![Delta logo]()
$641
This Delta deal was found by Cheapflights users on 4/5. 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.
Sat 5/1610:53 am
GFK
- MDW
2 stops7h 40m
Delta
Tue 5/269:23 am
MDW
- GFK
1 stop4h 58m
Delta
Deal found 4/5![Delta logo]()
$942
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 10, 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 10, 2026.
This Delta deal was found by Cheapflights users on 4/8. 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
- STL
1 stop5h 27m
Delta
Deal found 4/8![Delta logo]()
$338
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 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $345 (Delta) |
One-way from | $338 (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 10, 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
Quickest round-trip
Grand ForksSt. Louis
GFK - STL
GFKSTL
Grand Forks
Wed 9/23
7:15 pm-11:01 pm
1 stop3h 46m
Lambert-St Louis
Sat 9/26
6:30 am-10:10 am
1 stop3h 40m
$345
Grand ForksChicago
GFK - ORD
GFKORD
Grand Forks
Fri 4/24
3:55 pm-7:52 pm
1 stop3h 57m
Chicago O'Hare Intl
Tue 4/28
6:25 am-10:15 am
1 stop3h 50m
$429
Grand ForksChicago
GFK - ORD
GFKORD
Grand Forks
Tue 9/22
10:45 am-4:48 pm
1 stop6h 03m
Chicago O'Hare Intl
Sun 9/27
6:00 am-10:10 am
1 stop4h 10m
$433
Grand ForksChicago
GFK - ORD
GFKORD
Grand Forks
Tue 6/30
5:15 am-11:31 am
1 stop6h 16m
Chicago O'Hare Intl
Thu 8/20
7:10 am-6:05 pm
2 stops10h 55m
$436
Grand ForksSt. Louis
GFK - STL
GFKSTL
Grand Forks
Fri 5/1
7:15 pm-11:13 pm
1 stop3h 58m
Lambert-St Louis
Mon 5/4
9:26 am-2:25 pm
1 stop4h 59m
$447
Grand ForksSt. Louis
GFK - STL
GFKSTL
Grand Forks
Fri 4/24
7:15 pm-11:13 pm
1 stop3h 58m
Lambert-St Louis
Tue 4/28
6:20 am-10:15 am
1 stop3h 55m
$478
Grand ForksChicago
GFK - MDW
GFKMDW
Grand Forks
Tue 9/22
5:15 am-12:30 pm
2 stops7h 15m
Chicago Midway
Sun 9/27
9:20 am-2:20 pm
1 stop5h 00m
$570
Grand ForksChicago
GFK - ORD
GFKORD
Grand Forks
Sat 5/16
10:53 am-8:14 pm
2 stops9h 21m
Chicago O'Hare Intl
Tue 5/26
6:24 am-10:18 am
1 stop3h 54m
$646
Grand ForksChicago
GFK - ORD
GFKORD
Grand Forks
Fri 7/31
10:45 am-3:05 pm
1 stop4h 20m
Chicago O'Hare Intl
Sun 8/2
6:12 pm-11:05 pm
1 stop4h 53m
$655
Grand ForksChicago
GFK - ORD
GFKORD
Grand Forks
Tue 4/21
3:55 pm-9:38 pm
1 stop5h 43m
Chicago O'Hare Intl
Sat 4/25
6:25 am-10:15 am
1 stop3h 50m
$714
Showing 1-10 of 19 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
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 $250). 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
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