$70+ Cheap flights from North Dakota 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.
FAR — ORD
Jun 5 — Jun 121
Round-trip
1 adult, Economy
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Cheapest flights from North Dakota to IllinoisExplore the most affordable flight options available from North Dakota 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 North Dakota to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 6, 2026.
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/102:32 pm
FAR
- ORD
1 stop6h 11m
Frontier
Fri 6/129:48 pm
ORD
- FAR
1 stop15h 59m
Frontier
Deal found 5/6![Frontier logo]()
$239
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/232:04 pm
FAR
- ORD
1 stop6h 28m
Frontier
Sun 5/249:37 pm
ORD
- FAR
1 stop16h 09m
Frontier
Deal found 5/2![Frontier logo]()
$252
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/52:31 pm
FAR
- ORD
1 stop6h 01m
Frontier
Fri 6/129:48 pm
ORD
- FAR
1 stop15h 59m
Frontier
Deal found 5/6![Frontier logo]()
$260
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/195:45 pm
FAR
- ORD
Nonstop2h 10m
United Airlines
Mon 6/229:30 pm
ORD
- FAR
Nonstop2h 14m
United Airlines
Deal found 5/2![United Airlines logo]()
$269
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/234:35 pm
FAR
- ORD
Nonstop2h 17m
American Airlines
Sun 5/249:35 am
ORD
- FAR
Nonstop2h 09m
American Airlines
Deal found 5/2![American Airlines logo]()
$271
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/195:39 pm
FAR
- ORD
1 stop7h 00m
American Airlines
Mon 6/229:01 pm
ORD
- FAR
Nonstop2h 05m
American Airlines
Deal found 5/5![American Airlines logo]()
$279
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/202:32 pm
FAR
- ORD
1 stop6h 11m
Frontier
Thu 6/259:48 pm
ORD
- FAR
1 stop15h 59m
Frontier
Deal found 5/4![Frontier logo]()
$280
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.
Tue 8/185:00 am
FAR
- STL
1 stop5h 23m
Delta
Tue 8/2512:52 pm
STL
- FAR
1 stop8h 20m
Delta
Deal found 5/3![Delta logo]()
$285
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 7/91:18 pm
FAR
- ORD
1 stop3h 41m
Delta
Sun 7/128:21 pm
ORD
- FAR
1 stop3h 30m
Delta
Deal found 5/6![Delta logo]()
$289
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 7/91:18 pm
FAR
- MDW
1 stop5h 00m
Delta
Fri 7/171:49 pm
MDW
- FAR
1 stop4h 24m
Delta
Deal found 5/6![Delta logo]()
$289
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 7/93:00 pm
FAR
- ORD
2 stops8h 53m
Delta
Tue 7/146:30 am
ORD
- FAR
1 stop3h 49m
Delta
Deal found 5/6![Delta logo]()
$294
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 7/91:18 pm
FAR
- MDW
1 stop5h 00m
Delta
Mon 7/209:19 am
MDW
- FAR
2 stops8h 54m
Delta
Deal found 5/6![Delta logo]()
$294
Best flights from North Dakota to IllinoisDiscover carefully curated flight deals from North Dakota 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 North Dakota 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 5/3. 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 8/185:00 am
FAR
- STL
1 stop5h 23m
Delta
Tue 8/2512:52 pm
STL
- FAR
1 stop8h 20m
Delta
Deal found 5/3![Delta logo]()
$285
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/45:39 pm
FAR
- STL
1 stop6h 20m
American Airlines
Sat 6/65:29 am
STL
- FAR
1 stop5h 33m
American Airlines
Deal found 5/2![American Airlines logo]()
$344
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/231:08 pm
FAR
- STL
1 stop6h 15m
United Airlines
Wed 5/275:29 pm
STL
- FAR
1 stop4h 36m
United Airlines
Deal found 5/2![United Airlines logo]()
$389
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2812:27 pm
MOT
- STL
1 stop7h 59m
Multiple Airlines
Tue 6/28:08 pm
STL
- MOT
2 stops40h 07m
Multiple Airlines
Deal found 5/2![Multiple Airlines logo]()
$513
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.
Thu 7/235:00 am
FAR
- ORD
1 stop3h 30m
Delta
Mon 7/278:21 pm
ORD
- FAR
1 stop3h 30m
Delta
Deal found 5/1![Delta logo]()
$289
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 6/195:00 am
FAR
- ORD
1 stop3h 35m
Delta
Sat 6/206:30 am
ORD
- FAR
1 stop5h 59m
Delta
Deal found 5/6![Delta logo]()
$289
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 6/182:47 pm
FAR
- ORD
1 stop4h 44m
Delta
Sat 6/206:30 am
ORD
- FAR
1 stop3h 45m
Delta
Deal found 5/4![Delta logo]()
$289
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 8/265:00 am
FAR
- MDW
1 stop3h 40m
Delta
Sat 8/299:59 am
MDW
- FAR
1 stop4h 06m
Delta
Deal found 5/5![Delta logo]()
$289
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/217:15 am
FAR
- ORD
Nonstop2h 13m
United Airlines
Sun 5/247:45 pm
ORD
- FAR
Nonstop2h 20m
United Airlines
Deal found 5/2![United Airlines logo]()
$399
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.
Sat 5/305:00 am
FAR
- MDW
1 stop3h 42m
Delta
Tue 6/21:59 pm
MDW
- FAR
1 stop5h 55m
Delta
Deal found 5/5![Delta logo]()
$289
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/141:55 pm
BIS
- STL
2 stops10h 21m
American Airlines
Tue 7/215:13 pm
STL
- BIS
1 stop5h 46m
American Airlines
Deal found 5/2![American Airlines logo]()
$431
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.
Sat 5/305:00 am
FAR
- ORD
2 stops7h 56m
Delta
Tue 6/25:41 pm
ORD
- FAR
1 stop6h 18m
Delta
Deal found 5/5![Delta logo]()
$294
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/19:16 am
BIS
- STL
1 stop7h 15m
United Airlines
Sat 9/54:40 pm
STL
- BIS
1 stop6h 58m
United Airlines
Deal found 5/4![United Airlines logo]()
$434
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/282:00 pm
BIS
- STL
1 stop7h 42m
American Airlines
Tue 6/212:45 pm
STL
- BIS
2 stops11h 12m
American Airlines
Deal found 5/2![American Airlines logo]()
$438
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 6/37:10 am
FAR
- ORD
2 stops5h 51m
Delta
Wed 6/1012:27 pm
ORD
- FAR
1 stop5h 47m
Delta
Deal found 5/4![Delta logo]()
$294
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/12:31 pm
FAR
- STL
1 stop28h 52m
Multiple Airlines
Thu 6/44:19 pm
STL
- FAR
1 stop17h 41m
Multiple Airlines
Deal found 5/6![Multiple Airlines logo]()
$524
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/15:00 pm
MOT
- STL
1 stop6h 50m
United Airlines
Sat 9/54:40 pm
STL
- MOT
1 stop5h 35m
United Airlines
Deal found 5/4![United Airlines logo]()
$438
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 6/255:00 am
FAR
- ORD
1 stop3h 35m
Delta
Tue 6/302:07 pm
ORD
- FAR
2 stops9h 11m
Delta
Deal found 5/4![Delta logo]()
$294
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 6/195:00 am
FAR
- MDW
1 stop3h 37m
Delta
Sat 6/209:17 am
MDW
- FAR
2 stops6h 28m
Delta
Deal found 5/6![Delta logo]()
$294
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.
Tue 6/25:00 am
MOT
- ORD
1 stop3h 36m
Delta
Wed 6/106:30 am
ORD
- MOT
1 stop5h 23m
Delta
Deal found 5/1![Delta logo]()
$298
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/289:45 am
FAR
- STL
1 stop6h 01m
United Airlines
Sun 6/287:05 pm
STL
- FAR
1 stop4h 43m
United Airlines
Deal found 5/3![United Airlines logo]()
$531
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 9/237:30 am
MOT
- MDW
1 stop5h 41m
Delta
Mon 9/289:20 am
MDW
- MOT
1 stop6h 42m
Delta
Deal found 5/3![Delta logo]()
$298
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/286:28 pm
MOT
- STL
1 stop5h 29m
United Airlines
Tue 6/25:29 pm
STL
- MOT
2 stops19h 07m
United Airlines
Deal found 5/4![United Airlines logo]()
$559
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 7/35:00 am
BIS
- STL
1 stop5h 28m
Delta
Mon 7/66:21 am
STL
- BIS
1 stop4h 15m
Delta
Deal found 5/5![Delta logo]()
$309
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 5/285:42 pm
BIS
- STL
1 stop5h 39m
Delta
Tue 6/25:36 pm
STL
- BIS
1 stop5h 46m
Delta
Deal found 5/5![Delta logo]()
$309
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 7/145:40 pm
BIS
- STL
1 stop5h 42m
Delta
Tue 7/215:36 pm
STL
- BIS
1 stop5h 35m
Delta
Deal found 5/2![Delta logo]()
$309
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.
Tue 10/63:00 pm
BIS
- ORD
1 stop4h 34m
Delta
Sat 10/108:55 am
ORD
- BIS
2 stops7h 59m
Delta
Deal found 5/6![Delta logo]()
$320
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 8/265:36 pm
BIS
- ORD
1 stop4h 11m
Delta
Sat 8/296:51 am
ORD
- BIS
2 stops10h 04m
Delta
Deal found 5/5![Delta logo]()
$320
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.
Sat 7/254:28 pm
FAR
- STL
1 stop5h 35m
Delta
Sun 7/266:21 am
STL
- FAR
1 stop3h 58m
Delta
Deal found 5/5![Delta logo]()
$334
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.
Mon 6/222:47 pm
FAR
- ORD
1 stop6h 38m
Delta
Wed 7/11:40 pm
ORD
- FAR
2 stops9h 38m
Delta
Deal found 5/1![Delta logo]()
$335
Last-minute flights from North Dakota to IllinoisDiscover last-minute flight deals from North Dakota to Illinois. Data last updated May 6, 2026 and is based on user searches.
Discover last-minute flight deals from North Dakota to Illinois. Data last updated May 6, 2026 and is based on user searches.
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/232:04 pm
FAR
- ORD
1 stop6h 28m
Frontier
Sun 5/249:37 pm
ORD
- FAR
1 stop16h 09m
Frontier
Deal found 5/2![Frontier logo]()
$252
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/234:35 pm
FAR
- ORD
Nonstop2h 17m
American Airlines
Sun 5/249:35 am
ORD
- FAR
Nonstop2h 09m
American Airlines
Deal found 5/2![American Airlines logo]()
$271
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/272:31 pm
FAR
- ORD
1 stop6h 01m
Frontier
Fri 5/299:37 pm
ORD
- FAR
1 stop15h 42m
Frontier
Deal found 5/6![Frontier logo]()
$219
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.
Sat 5/305:00 am
FAR
- MDW
1 stop3h 42m
Delta
Tue 6/21:59 pm
MDW
- FAR
1 stop5h 55m
Delta
Deal found 5/5![Delta logo]()
$289
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/312:54 pm
BIS
- ORD
Nonstop2h 23m
American Airlines
Wed 6/109:45 am
ORD
- BIS
Nonstop2h 32m
American Airlines
Deal found 5/4![American Airlines logo]()
$295
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/52:31 pm
FAR
- ORD
1 stop6h 01m
Frontier
Fri 6/129:48 pm
ORD
- FAR
1 stop15h 59m
Frontier
Deal found 5/6![Frontier logo]()
$260
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/102:32 pm
FAR
- ORD
1 stop6h 11m
Frontier
Fri 6/129:48 pm
ORD
- FAR
1 stop15h 59m
Frontier
Deal found 5/6![Frontier logo]()
$239
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 6/1810:55 am
FAR
- ORD
1 stop4h 10m
Delta
Sat 6/207:01 am
ORD
- FAR
2 stops8h 44m
Delta
Deal found 5/6![Delta logo]()
$294
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/195:45 pm
FAR
- ORD
Nonstop2h 10m
United Airlines
Mon 6/229:30 pm
ORD
- FAR
Nonstop2h 14m
United Airlines
Deal found 5/2![United Airlines logo]()
$269
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/194:35 pm
FAR
- ORD
Nonstop2h 16m
American Airlines
Sat 6/208:19 am
ORD
- FAR
1 stop8h 50m
American Airlines
Deal found 5/5![American Airlines logo]()
$279
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/202:32 pm
FAR
- ORD
1 stop6h 11m
Frontier
Thu 6/259:48 pm
ORD
- FAR
1 stop15h 59m
Frontier
Deal found 5/4![Frontier logo]()
$280
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 6/262:47 pm
FAR
- ORD
1 stop6h 38m
Delta
Wed 7/16:30 am
ORD
- FAR
1 stop3h 45m
Delta
Deal found 5/5![Delta logo]()
$289
One-way flights from North Dakota to IllinoisSearch for one-way flight options from North Dakota to Illinois. Find affordable one-way fares based on user searches. Data last updated May 6, 2026.
Search for one-way flight options from North Dakota to Illinois. Find affordable one-way fares based on user searches. Data last updated May 6, 2026.
This Priceline 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/232:04 pm
FAR
- STL
1 stop5h 19m
Frontier
Deal found 5/2![Frontier logo]()
$70
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/252:33 pm
FAR
- ORD
1 stop6h 19m
Frontier
Deal found 5/2![Frontier logo]()
$109
This Priceline 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/292:31 pm
FAR
- ORD
1 stop6h 01m
Frontier
Deal found 5/5![Frontier logo]()
$115
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/222:31 pm
FAR
- ORD
1 stop6h 01m
Frontier
Deal found 5/3![Frontier logo]()
$125
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/312:33 pm
FAR
- ORD
1 stop6h 19m
Frontier
Deal found 5/5![Frontier logo]()
$135
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/232:04 pm
FAR
- ORD
1 stop6h 28m
Frontier
Deal found 5/5![Frontier logo]()
$145
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/2312:12 pm
FAR
- ORD
Nonstop2h 08m
American Airlines
Deal found 5/2![American Airlines logo]()
$174
This Priceline 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/152:31 pm
FAR
- ORD
1 stop6h 01m
Frontier
Deal found 5/5![Frontier logo]()
$175
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/28:13 pm
FAR
- ORD
2 stops15h 17m
Multiple Airlines
Deal found 5/6![Multiple Airlines logo]()
$178
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/288:01 pm
FAR
- ORD
2 stops15h 29m
Multiple Airlines
Deal found 5/6![Multiple Airlines logo]()
$180
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/232:38 pm
BIS
- STL
2 stops28h 45m
Multiple Airlines
Deal found 5/3![Multiple Airlines logo]()
$184
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/295:39 pm
FAR
- ORD
1 stop7h 03m
American Airlines
Deal found 5/4![American Airlines logo]()
$184
Find flight deals from North Dakota to Illinois
Keep the following information in mind while searching for North Dakota 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 | $252 (Frontier) |
One-way from | $70 (Priceline) |
Popular in | March |
Cheapest in | January |
Average price | $303 |
Good round-trip deal | $376 or less |
Good one-way deal | $241 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from North Dakota 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 North Dakota to Illinois that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
FargoSt. Louis
FAR - STL
FARSTL
Fargo Hector Field
Tue 8/18
5:00 am-10:23 am
1 stop5h 23m
Lambert-St Louis
Tue 8/25
12:52 pm-9:12 pm
1 stop8h 20m
$285
FargoChicago
FAR - ORD
FARORD
Fargo Hector Field
Thu 7/23
5:00 am-8:30 am
1 stop3h 30m
Chicago O'Hare Intl
Mon 7/27
8:21 pm-11:51 pm
1 stop3h 30m
$289
FargoChicago
FAR - ORD
FARORD
Fargo Hector Field
Fri 6/19
5:00 am-8:35 am
1 stop3h 35m
Chicago O'Hare Intl
Sat 6/20
6:30 am-12:29 pm
1 stop5h 59m
$289
FargoChicago
FAR - ORD
FARORD
Fargo Hector Field
Thu 6/18
2:47 pm-7:31 pm
1 stop4h 44m
Chicago O'Hare Intl
Sat 6/20
6:30 am-10:15 am
1 stop3h 45m
$289
FargoChicago
FAR - MDW
FARMDW
Fargo Hector Field
Wed 8/26
5:00 am-8:40 am
1 stop3h 40m
Chicago Midway
Sat 8/29
9:59 am-2:05 pm
1 stop4h 06m
$289
FargoChicago
FAR - MDW
FARMDW
Fargo Hector Field
Sat 5/30
5:00 am-8:42 am
1 stop3h 42m
Chicago Midway
Tue 6/2
1:59 pm-7:54 pm
1 stop5h 55m
$289
FargoChicago
FAR - ORD
FARORD
Fargo Hector Field
Sat 5/30
5:00 am-12:56 pm
2 stops7h 56m
Chicago O'Hare Intl
Tue 6/2
5:41 pm-11:59 pm
1 stop6h 18m
$294
FargoChicago
FAR - ORD
FARORD
Fargo Hector Field
Wed 6/3
7:10 am-1:01 pm
2 stops5h 51m
Chicago O'Hare Intl
Wed 6/10
12:27 pm-6:14 pm
1 stop5h 47m
$294
FargoChicago
FAR - ORD
FARORD
Fargo Hector Field
Thu 6/25
5:00 am-8:35 am
1 stop3h 35m
Chicago O'Hare Intl
Tue 6/30
2:07 pm-11:18 pm
2 stops9h 11m
$294
FargoChicago
FAR - MDW
FARMDW
Fargo Hector Field
Fri 6/19
5:00 am-8:37 am
1 stop3h 37m
Chicago Midway
Sat 6/20
9:17 am-3:45 pm
2 stops6h 28m
$294
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from North Dakota to Illinois
Have a flexible travel schedule? Discover the best time to fly to Illinois from North Dakota with our price prediction graph.
FAR-STL
MOT-STL
FAR-ORD
FAR-MDW
BIS-STL
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 North Dakota to Illinois
USND-USIL
FAR-STL
MOT-STL
FAR-ORD
FAR-MDW
How far ahead should I book a flight from North Dakota to Illinois?
Booking 71 days in advance of your planned departure date is, on average, the best time to get cheap flights from North Dakota to Illinois. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from North Dakota to Illinois?
Currently, December is the cheapest month in which you can book a flight from North Dakota to Illinois (average of $102). Flying from North Dakota to Illinois in February is currently the most expensive (average of $209). 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.
What is the cheapest time of day to fly from ND to IL?
Find hourly flight availability from North Dakota to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 6, 2026.
When flying from North Dakota to Illinois, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 11% versus a flight in the evening.
What is the cheapest day to fly from North Dakota to Illinois?
Use this chart to determine the cheapest time to fly round-trip from North Dakota to Illinois. Price data was last updated on May 2, 2026.
Travelers seeking maximum savings on their North Dakota to Illinois flight should consider departing on Tuesday mornings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Weekly flight availability from North Dakota to Illinois
Explore weekly flight availability from North Dakota to Illinois. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated May 6, 2026.
The most flights from USND to USIL are scheduled on a Wednesday (27 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (16 on average).
How much does it cost to fly round-trip from North Dakota to Illinois?
Reviews of airlines servicing Illinois
Get insights into the airlines that provide service to Illinois. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Illinois. Reviews last updated May 6, 2026.
Read through reviews of airlines operating flights from North Dakota to Illinois, such as Delta,United Airlines, andAmerican Airlines. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.5
Food
7.2
Comfort
7.9
Entertainment
7.8
Boarding
8.1
Overall
7.9
Reviews
1 / 20
4.0
OkayJoel,May 2026
ATL - JAX
Crew
8.5
Food
7.2
Comfort
7.9
Entertainment
7.8
Boarding
8.1
Overall
7.9
Reviews
1 / 20
4.0
OkayJoel,May 2026
ATL - JAX
Crew
8.5
Food
7.2
Comfort
7.9
Entertainment
7.8
Boarding
8.1
Overall
7.9
Reviews
1 / 20
4.0
OkayJoel,May 2026
ATL - JAX
Crew
8.5
Food
7.2
Comfort
7.9
Entertainment
7.8
Boarding
8.1
Overall
7.9
Reviews
1 / 20
4.0
OkayJoel,May 2026
ATL - JAX
Crew
8.5
Food
7.2
Comfort
7.9
Entertainment
7.8
Boarding
8.1
Overall
7.9
Reviews
1 / 20
4.0
OkayJoel,May 2026
ATL - JAX
Related info for your journey
Find useful and relevant information for your journey from North Dakota to Illinois. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for North Dakota to Illinois
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Illinois by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from North Dakota to Illinois by cabin class
Find flights from North Dakota to Illinois, based on your preferred cabin class, be it economy, premium economy, business, or first class.
North Dakota and Illinois flights
Browse other North Dakota and Illinois flight options. Last updated on May 6, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Find a return flight route from Illinois
Find the right flight back to North Dakota after your stay in Illinois
North Dakota to Illinois flights
Consider these flights traveling from North Dakota to Illinois.
Top 3 airlines flying from North Dakota to Illinois
Discover the top 3 airlines that operate flights from North Dakota to Illinois. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 6, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$209 | Average$345 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$209 | Average$337 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$218 | Average$358 | FlexibilityNo cancel fee | On-timeN/A |