$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 9/30. Fares are subject to change and may not be available on all flights or dates of travel.
GFK — ORD
Jun 5 — Jun 121
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Grand Forks to Illinois with Cheapflights
1. Tell us where you want to go
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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Grand Forks to Illinois
Cheapest
Best
Last-minute
One-way
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 May 6, 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 May 6, 2026.
This Delta deal was found by Cheapflights users on 5/2. 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 7/410:50 am
GFK
- ORD
1 stop6h 37m
Delta
Fri 7/106:30 am
ORD
- GFK
1 stop3h 49m
Delta
Deal found 5/2![Delta logo]()
$401
This Delta deal was found by Cheapflights users on 5/4. 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 9/2610:45 am
GFK
- ORD
1 stop6h 03m
Delta
Sat 10/36:00 am
ORD
- GFK
1 stop4h 10m
Delta
Deal found 5/4![Delta logo]()
$445
This Delta deal was found by Cheapflights users on 5/2. 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 10/85:10 am
GFK
- MDW
1 stop3h 39m
Delta
Sun 10/1112:30 pm
MDW
- GFK
1 stop6h 45m
Delta
Deal found 5/2![Delta logo]()
$453
This Delta deal was found by Cheapflights users on 5/2. 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 7/410:50 am
GFK
- ORD
1 stop6h 37m
Delta
Sun 7/126:30 am
ORD
- GFK
1 stop3h 49m
Delta
Deal found 5/2![Delta logo]()
$467
This Delta deal was found by Cheapflights users on 5/5. 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.
Thu 8/203:55 pm
GFK
- ORD
1 stop5h 52m
Delta
Tue 8/256:25 am
ORD
- GFK
1 stop3h 53m
Delta
Deal found 5/5![Delta logo]()
$479
This Delta deal was found by Cheapflights users on 5/3. 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.
Wed 5/67:15 pm
GFK
- STL
1 stop4h 00m
Delta
Sun 5/106:21 am
STL
- GFK
1 stop3h 57m
Delta
Deal found 5/3![Delta logo]()
$488
This Delta deal was found by Cheapflights users on 5/5. 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.
Fri 6/195:00 am
GFK
- ORD
1 stop3h 35m
Delta
Sun 6/216:30 am
ORD
- GFK
1 stop3h 45m
Delta
Deal found 5/5![Delta logo]()
$493
This Delta deal was found by Cheapflights users on 5/4. 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 5/95:05 am
GFK
- ORD
1 stop3h 31m
Delta
Sat 5/1610:15 am
ORD
- GFK
1 stop4h 06m
Delta
Deal found 5/4![Delta logo]()
$497
This Delta deal was found by Cheapflights users on 5/4. 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 5/95:05 am
GFK
- MDW
1 stop3h 37m
Delta
Sat 5/169:23 am
MDW
- GFK
1 stop4h 58m
Delta
Deal found 5/4![Delta logo]()
$497
This Delta deal was found by Cheapflights users on 5/4. 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 7/85:00 am
GFK
- ORD
1 stop16h 52m
Delta
Tue 7/143:55 pm
ORD
- GFK
1 stop18h 24m
Delta
Deal found 5/4![Delta logo]()
$505
This Delta deal was found by Cheapflights users on 5/4. 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 7/85:00 am
GFK
- MDW
1 stop13h 18m
Delta
Tue 7/141:49 pm
MDW
- GFK
1 stop9h 16m
Delta
Deal found 5/4![Delta logo]()
$505
This Delta deal was found by Cheapflights users on 5/2. 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 7/95:00 am
GFK
- ORD
1 stop3h 30m
Delta
Sun 7/126:30 am
ORD
- GFK
1 stop3h 49m
Delta
Deal found 5/2![Delta logo]()
$519
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 May 6, 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 May 6, 2026.
This Delta deal was found by Cheapflights users on 5/4. 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 9/2610:45 am
GFK
- ORD
1 stop6h 03m
Delta
Sat 10/36:00 am
ORD
- GFK
1 stop4h 10m
Delta
Deal found 5/4![Delta logo]()
$445
This Delta deal was found by Cheapflights users on 5/2. 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 10/85:10 am
GFK
- MDW
1 stop3h 39m
Delta
Sun 10/1112:30 pm
MDW
- GFK
1 stop6h 45m
Delta
Deal found 5/2![Delta logo]()
$453
This Delta deal was found by Cheapflights users on 5/6. 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.
Thu 5/217:15 pm
GFK
- STL
1 stop4h 06m
Delta
Mon 5/256:21 am
STL
- GFK
1 stop3h 57m
Delta
Deal found 5/6![Delta logo]()
$527
This Delta deal was found by Cheapflights users on 5/4. 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 7/95:00 am
GFK
- MDW
1 stop3h 37m
Delta
Sun 7/127:06 pm
MDW
- GFK
1 stop15h 13m
Delta
Deal found 5/4![Delta logo]()
$631
This Delta deal was found by Cheapflights users on 5/2. 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 7/410:50 am
GFK
- ORD
1 stop6h 37m
Delta
Wed 7/158:52 am
ORD
- GFK
2 stops14h 13m
Delta
Deal found 5/2![Delta logo]()
$634
This Delta deal was found by Cheapflights users on 5/1. 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.
Sun 5/245:05 am
GFK
- MDW
2 stops7h 37m
Delta
Sat 5/307:13 pm
MDW
- GFK
1 stop3h 50m
Delta
Deal found 5/1![Delta logo]()
$636
This Delta deal was found by Cheapflights users on 5/2. 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 7/97:15 pm
GFK
- ORD
2 stops17h 48m
Delta
Sat 7/116:25 pm
ORD
- GFK
1 stop15h 54m
Delta
Deal found 5/2![Delta logo]()
$638
This Delta deal was found by Cheapflights users on 5/4. 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 7/107:15 pm
GFK
- ORD
1 stop13h 20m
Delta
Tue 7/148:21 pm
ORD
- GFK
1 stop13h 58m
Delta
Deal found 5/4![Delta logo]()
$644
This Delta deal was found by Cheapflights users on 5/2. 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.
Wed 7/85:00 am
GFK
- ORD
1 stop11h 59m
Delta
Sat 7/116:25 pm
ORD
- GFK
1 stop15h 54m
Delta
Deal found 5/2![Delta logo]()
$663
This Delta deal was found by Cheapflights users on 5/2. 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.
Tue 7/75:00 am
GFK
- ORD
1 stop10h 05m
Delta
Sat 7/1112:46 pm
ORD
- GFK
1 stop21h 33m
Delta
Deal found 5/2![Delta logo]()
$663
This Delta deal was found by Cheapflights users on 5/4. 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 7/95:00 am
GFK
- MDW
1 stop3h 37m
Delta
Mon 7/131:18 pm
MDW
- GFK
2 stops9h 47m
Delta
Deal found 5/4![Delta logo]()
$698
This Delta deal was found by Cheapflights users on 5/4. 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 8/265:00 am
GFK
- ORD
2 stops8h 13m
Delta
Fri 8/282:12 pm
ORD
- GFK
2 stops8h 54m
Delta
Deal found 5/4![Delta logo]()
$725
This Delta deal was found by Cheapflights users on 5/6. 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 6/53:50 pm
GFK
- ORD
1 stop5h 30m
Delta
Mon 6/88:36 am
ORD
- GFK
1 stop5h 48m
Delta
Deal found 5/6![Delta logo]()
$733
This Delta deal was found by Cheapflights users on 5/4. 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 5/1910:53 am
GFK
- STL
1 stop5h 53m
Delta
Sat 5/236:21 am
STL
- GFK
1 stop3h 57m
Delta
Deal found 5/4![Delta logo]()
$759
This Delta deal was found by Cheapflights users on 5/4. 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 5/1910:53 am
GFK
- ORD
1 stop4h 04m
Delta
Sat 5/236:24 am
ORD
- GFK
1 stop3h 54m
Delta
Deal found 5/4![Delta logo]()
$763
This Delta deal was found by Cheapflights users on 5/4. 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 5/195:05 am
GFK
- MDW
1 stop3h 37m
Delta
Sat 5/237:13 pm
MDW
- GFK
1 stop3h 50m
Delta
Deal found 5/4![Delta logo]()
$763
This Delta deal was found by Cheapflights users on 5/4. 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 7/85:00 am
GFK
- MDW
2 stops7h 38m
Delta
Sat 7/119:49 am
MDW
- GFK
1 stop4h 45m
Delta
Deal found 5/4![Delta logo]()
$804
This Delta deal was found by Cheapflights users on 5/4. 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 8/265:00 am
GFK
- MDW
2 stops7h 39m
Delta
Fri 8/289:24 am
MDW
- GFK
2 stops8h 44m
Delta
Deal found 5/4![Delta logo]()
$805
This Delta deal was found by Cheapflights users on 5/5. 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.
Wed 5/205:05 am
GFK
- MDW
1 stop3h 37m
Delta
Sun 5/249:23 am
MDW
- GFK
1 stop4h 58m
Delta
Deal found 5/5![Delta logo]()
$831
This Delta deal was found by Cheapflights users on 5/2. 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 8/2010:53 am
GFK
- MDW
2 stops7h 40m
Delta
Tue 8/259:59 am
MDW
- GFK
1 stop4h 36m
Delta
Deal found 5/2![Delta logo]()
$884
This Delta deal was found by Cheapflights users on 5/4. 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 7/65:00 am
GFK
- MDW
1 stop3h 37m
Delta
Tue 7/147:06 pm
MDW
- GFK
1 stop3h 59m
Delta
Deal found 5/4![Delta logo]()
$1,033
Last-minute flights from Grand Forks to IllinoisDiscover last-minute flight deals from Grand Forks to Illinois. Data last updated May 6, 2026 and is based on user searches.
Discover last-minute flight deals from Grand Forks to Illinois. Data last updated May 6, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 5/3. 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.
Wed 5/67:15 pm
GFK
- STL
1 stop4h 00m
Delta
Sun 5/106:21 am
STL
- GFK
1 stop3h 57m
Delta
Deal found 5/3![Delta logo]()
$488
This Delta deal was found by Cheapflights users on 5/4. 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 5/95:05 am
GFK
- ORD
1 stop3h 31m
Delta
Sat 5/1610:15 am
ORD
- GFK
1 stop4h 06m
Delta
Deal found 5/4![Delta logo]()
$497
This Delta deal was found by Cheapflights users on 5/4. 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 5/95:05 am
GFK
- MDW
1 stop3h 37m
Delta
Sat 5/169:23 am
MDW
- GFK
1 stop4h 58m
Delta
Deal found 5/4![Delta logo]()
$497
This Delta deal was found by Cheapflights users on 5/4. 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 5/1910:53 am
GFK
- STL
1 stop5h 53m
Delta
Sat 5/236:21 am
STL
- GFK
1 stop3h 57m
Delta
Deal found 5/4![Delta logo]()
$759
This Delta deal was found by Cheapflights users on 5/4. 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 5/1910:53 am
GFK
- ORD
1 stop4h 04m
Delta
Sat 5/236:24 am
ORD
- GFK
1 stop3h 54m
Delta
Deal found 5/4![Delta logo]()
$763
This Delta deal was found by Cheapflights users on 5/4. 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 5/195:05 am
GFK
- MDW
1 stop3h 37m
Delta
Sat 5/237:13 pm
MDW
- GFK
1 stop3h 50m
Delta
Deal found 5/4![Delta logo]()
$763
This Delta deal was found by Cheapflights users on 5/6. 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.
Thu 5/217:15 pm
GFK
- STL
1 stop4h 06m
Delta
Mon 5/256:21 am
STL
- GFK
1 stop3h 57m
Delta
Deal found 5/6![Delta logo]()
$527
This Delta deal was found by Cheapflights users on 5/1. 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.
Sun 5/245:05 am
GFK
- MDW
1 stop3h 37m
Delta
Sat 5/307:13 pm
MDW
- GFK
1 stop3h 50m
Delta
Deal found 5/1![Delta logo]()
$631
This Delta deal was found by Cheapflights users on 5/3. 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.
Mon 6/13:50 pm
GFK
- ORD
1 stop5h 30m
Delta
Sun 6/76:30 am
ORD
- GFK
1 stop3h 45m
Delta
Deal found 5/3![Delta logo]()
$811
This Delta deal was found by Cheapflights users on 5/6. 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 6/53:50 pm
GFK
- ORD
1 stop5h 30m
Delta
Mon 6/88:36 am
ORD
- GFK
1 stop5h 48m
Delta
Deal found 5/6![Delta logo]()
$733
This Delta deal was found by Cheapflights users on 5/5. 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.
Fri 6/195:00 am
GFK
- ORD
1 stop3h 35m
Delta
Sun 6/216:30 am
ORD
- GFK
1 stop3h 45m
Delta
Deal found 5/5![Delta logo]()
$493
This Delta deal was found by Cheapflights users on 5/5. 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.
Fri 6/195:00 am
GFK
- MDW
1 stop3h 37m
Delta
Sun 6/217:16 pm
MDW
- GFK
1 stop3h 51m
Delta
Deal found 5/5![Delta logo]()
$653
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 May 6, 2026.
Search for one-way flight options from Grand Forks to Illinois. Find affordable one-way fares based on user searches. Data last updated May 6, 2026.
This Delta deal was found by Cheapflights users on 5/4. 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 9/305:15 am
GFK
- STL
1 stop6h 15m
Delta
Deal found 5/4![Delta logo]()
$328
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 May 6, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $401 (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 May 6, 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 - ORD
GFKORD
Grand Forks
Sat 9/26
10:45 am-4:48 pm
1 stop6h 03m
Chicago O'Hare Intl
Sat 10/3
6:00 am-10:10 am
1 stop4h 10m
$445
Grand ForksChicago
GFK - MDW
GFKMDW
Grand Forks
Thu 10/8
5:10 am-8:49 am
1 stop3h 39m
Chicago Midway
Sun 10/11
12:30 pm-7:15 pm
1 stop6h 45m
$453
Grand ForksSt. Louis
GFK - STL
GFKSTL
Grand Forks
Thu 5/21
7:15 pm-11:21 pm
1 stop4h 06m
Lambert-St Louis
Mon 5/25
6:21 am-10:18 am
1 stop3h 57m
$527
Grand ForksChicago
GFK - MDW
GFKMDW
Grand Forks
Thu 7/9
5:00 am-8:37 am
1 stop3h 37m
Chicago Midway
Sun 7/12
7:06 pm-10:19 am
1 stop15h 13m
$631
Grand ForksChicago
GFK - ORD
GFKORD
Grand Forks
Sat 7/4
10:50 am-5:27 pm
1 stop6h 37m
Chicago O'Hare Intl
Wed 7/15
8:52 am-11:05 pm
2 stops14h 13m
$634
Grand ForksChicago
GFK - MDW
GFKMDW
Grand Forks
Sun 5/24
5:05 am-12:42 pm
2 stops7h 37m
Chicago Midway
Sat 5/30
7:13 pm-11:03 pm
1 stop3h 50m
$636
Grand ForksChicago
GFK - ORD
GFKORD
Grand Forks
Thu 7/9
7:15 pm-1:03 pm
2 stops17h 48m
Chicago O'Hare Intl
Sat 7/11
6:25 pm-10:19 am
1 stop15h 54m
$638
Grand ForksChicago
GFK - ORD
GFKORD
Grand Forks
Fri 7/10
7:15 pm-8:35 am
1 stop13h 20m
Chicago O'Hare Intl
Tue 7/14
8:21 pm-10:19 am
1 stop13h 58m
$644
Grand ForksChicago
GFK - ORD
GFKORD
Grand Forks
Wed 7/8
5:00 am-4:59 pm
1 stop11h 59m
Chicago O'Hare Intl
Sat 7/11
6:25 pm-10:19 am
1 stop15h 54m
$663
Grand ForksChicago
GFK - ORD
GFKORD
Grand Forks
Tue 7/7
5:00 am-3:05 pm
1 stop10h 05m
Chicago O'Hare Intl
Sat 7/11
12:46 pm-10:19 am
1 stop21h 33m
$663
Showing 1-10 of 22 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.
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.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Popular flights
Top destinations