$89+ 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 5/3. Fares are subject to change and may not be available on all flights or dates of travel.
FAR — ORD
Apr 7 — Apr 141
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from North Dakota 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 North Dakota to Illinois
Cheapest
Best
Last-minute
One-way
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 March 8, 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 March 8, 2026.
This American Airlines deal was found by Cheapflights users on 3/4. 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.
Sat 4/182:17 pm
FAR
- ORD
Nonstop2h 06m
American Airlines
Sat 4/2511:40 am
ORD
- FAR
Nonstop2h 07m
American Airlines
Deal found 3/4![American Airlines logo]()
$228
This United Airlines deal was found by Cheapflights users on 3/3. 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.
Fri 4/246:20 pm
FAR
- ORD
Nonstop2h 16m
United Airlines
Sat 4/257:50 pm
ORD
- FAR
Nonstop2h 13m
United Airlines
Deal found 3/3![United Airlines logo]()
$229
This American Airlines deal was found by Cheapflights users on 3/4. 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.
Sat 4/1812:59 pm
BIS
- ORD
Nonstop2h 24m
American Airlines
Sat 4/259:55 am
ORD
- BIS
Nonstop2h 34m
American Airlines
Deal found 3/4![American Airlines logo]()
$230
This American Airlines deal was found by Cheapflights users on 3/7. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/912:59 pm
BIS
- ORD
Nonstop2h 24m
American Airlines
Tue 5/129:55 am
ORD
- BIS
Nonstop2h 34m
American Airlines
Deal found 3/7![American Airlines logo]()
$231
This American Airlines deal was found by Cheapflights users on 3/3. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/247:00 am
FAR
- ORD
Nonstop2h 08m
American Airlines
Sun 4/2610:14 pm
ORD
- FAR
Nonstop2h 06m
American Airlines
Deal found 3/3![American Airlines logo]()
$249
This Delta deal was found by Cheapflights users on 3/7. 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.
Sat 3/285:05 am
FAR
- MDW
1 stop3h 45m
Delta
Fri 4/37:20 pm
MDW
- FAR
1 stop3h 51m
Delta
Deal found 3/7![Delta logo]()
$249
This Delta deal was found by Cheapflights users on 3/4. 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 4/188:05 am
BIS
- MDW
1 stop5h 27m
Delta
Sat 4/252:12 pm
MDW
- BIS
1 stop5h 23m
Delta
Deal found 3/4![Delta logo]()
$251
This Delta deal was found by Cheapflights users on 3/4. 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 4/188:05 am
BIS
- ORD
1 stop3h 29m
Delta
Sat 4/2512:14 pm
ORD
- BIS
1 stop4h 22m
Delta
Deal found 3/4![Delta logo]()
$251
This United Airlines deal was found by Cheapflights users on 3/3. 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.
Tue 3/316:00 pm
FAR
- ORD
Nonstop2h 16m
United Airlines
Tue 4/79:50 pm
ORD
- FAR
Nonstop2h 09m
United Airlines
Deal found 3/3![United Airlines logo]()
$252
This Delta deal was found by Cheapflights users on 3/4. 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 9/57:00 am
FAR
- ORD
2 stops5h 39m
Delta
Tue 9/83:50 pm
ORD
- FAR
1 stop4h 09m
Delta
Deal found 3/4![Delta logo]()
$254
This Delta deal was found by Cheapflights users on 3/4. 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 9/55:00 am
FAR
- MDW
2 stops7h 30m
Delta
Tue 9/82:00 pm
MDW
- FAR
1 stop5h 59m
Delta
Deal found 3/4![Delta logo]()
$254
This American Airlines deal was found by Cheapflights users on 3/3. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/61:56 pm
BIS
- ORD
Nonstop2h 14m
American Airlines
Sat 10/109:40 am
ORD
- BIS
Nonstop2h 24m
American Airlines
Deal found 3/3![American Airlines logo]()
$255
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 March 8, 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 March 8, 2026.
This United Airlines deal was found by Cheapflights users on 3/3. 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.
Fri 4/101:31 pm
FAR
- ORD
Nonstop2h 09m
United Airlines
Sun 4/1211:51 am
ORD
- FAR
Nonstop2h 04m
United Airlines
Deal found 3/3![United Airlines logo]()
$229
This Delta deal was found by Cheapflights users on 3/4. 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 4/185:00 am
FAR
- MDW
1 stop4h 06m
Delta
Sat 4/252:12 pm
MDW
- FAR
1 stop5h 33m
Delta
Deal found 3/4![Delta logo]()
$249
This American Airlines deal was found by Cheapflights users on 3/6. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/97:26 pm
FAR
- PIA
1 stop4h 07m
American Airlines
Sun 4/127:05 pm
PIA
- FAR
1 stop5h 15m
American Airlines
Deal found 3/6![American Airlines logo]()
$324
This Delta deal was found by Cheapflights users on 3/7. 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.
Tue 3/245:05 am
FAR
- MDW
1 stop3h 45m
Delta
Tue 3/317:20 pm
MDW
- FAR
1 stop3h 51m
Delta
Deal found 3/7![Delta logo]()
$269
This United Airlines deal was found by Cheapflights users on 3/5. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/276:35 pm
FAR
- PIA
1 stop3h 45m
United Airlines
Sun 3/295:25 pm
PIA
- FAR
1 stop5h 59m
United Airlines
Deal found 3/5![United Airlines logo]()
$289
This Delta deal was found by Cheapflights users on 3/4. 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 4/2512:36 pm
MOT
- ORD
1 stop7h 16m
Delta
Wed 4/296:25 am
ORD
- MOT
1 stop5h 30m
Delta
Deal found 3/4![Delta logo]()
$288
This United Airlines deal was found by Cheapflights users on 3/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/146:25 pm
BIS
- STL
1 stop5h 32m
United Airlines
Tue 7/214:48 pm
STL
- BIS
1 stop6h 53m
United Airlines
Deal found 3/7![United Airlines logo]()
$289
This American Airlines deal was found by Cheapflights users on 3/3. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/271:32 pm
BIS
- ORD
Nonstop2h 12m
American Airlines
Sat 8/2910:34 am
ORD
- BIS
Nonstop2h 27m
American Airlines
Deal found 3/3![American Airlines logo]()
$330
This United Airlines deal was found by Cheapflights users on 3/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/36:20 pm
FAR
- STL
1 stop4h 51m
United Airlines
Sat 4/47:45 am
STL
- FAR
1 stop6h 04m
United Airlines
Deal found 3/6![United Airlines logo]()
$289
This Delta deal was found by Cheapflights users on 3/5. 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 5/11:19 pm
BIS
- MDW
1 stop5h 17m
Delta
Sat 5/22:12 pm
MDW
- BIS
1 stop5h 23m
Delta
Deal found 3/5![Delta logo]()
$306
This United Airlines deal was found by Cheapflights users on 3/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/51:31 pm
FAR
- STL
1 stop6h 00m
United Airlines
Sun 4/127:45 am
STL
- FAR
1 stop6h 10m
United Airlines
Deal found 3/7![United Airlines logo]()
$294
This Delta deal was found by Cheapflights users on 3/6. 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.
Mon 5/255:00 am
FAR
- STL
1 stop5h 32m
Delta
Sat 5/3011:22 am
STL
- FAR
1 stop5h 37m
Delta
Deal found 3/6![Delta logo]()
$311
This United Airlines deal was found by Cheapflights users on 3/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/266:26 pm
XWA
- ORD
1 stop6h 18m
United Airlines
Sun 7/55:00 am
ORD
- XWA
1 stop5h 52m
United Airlines
Deal found 3/7![United Airlines logo]()
$307
This American Airlines deal was found by Cheapflights users on 3/6. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/222:26 pm
BIS
- STL
2 stops9h 20m
American Airlines
Fri 4/245:21 pm
STL
- BIS
1 stop19h 08m
American Airlines
Deal found 3/6![American Airlines logo]()
$418
This Delta deal was found by Cheapflights users on 3/6. 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.
Sat 3/214:50 pm
BIS
- STL
1 stop6h 35m
Delta
Wed 3/253:05 pm
STL
- BIS
1 stop5h 14m
Delta
Deal found 3/6![Delta logo]()
$323
This United Airlines deal was found by Cheapflights users on 3/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/251:27 pm
FAR
- ORD
Nonstop2h 00m
United Airlines
Tue 3/317:45 pm
ORD
- FAR
Nonstop2h 13m
United Airlines
Deal found 3/7![United Airlines logo]()
$319
This Delta deal was found by Cheapflights users on 3/7. 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.
Sat 6/65:00 am
FAR
- ORD
1 stop3h 36m
Delta
Mon 6/87:59 pm
ORD
- FAR
1 stop3h 48m
Delta
Deal found 3/7![Delta logo]()
$324
This Delta deal was found by Cheapflights users on 3/3. 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.
Thu 7/235:00 am
FAR
- ORD
1 stop3h 34m
Delta
Mon 7/275:20 pm
ORD
- FAR
1 stop6h 27m
Delta
Deal found 3/3![Delta logo]()
$334
This United Airlines deal was found by Cheapflights users on 3/3. 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.
Sat 4/182:30 pm
FAR
- PIA
1 stop4h 23m
United Airlines
Tue 4/218:05 am
PIA
- FAR
1 stop5h 50m
United Airlines
Deal found 3/3![United Airlines logo]()
$341
This Delta deal was found by Cheapflights users on 3/6. 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 4/245:00 am
FAR
- MDW
1 stop3h 46m
Delta
Mon 4/277:16 pm
MDW
- FAR
1 stop3h 56m
Delta
Deal found 3/6![Delta logo]()
$334
This United Airlines deal was found by Cheapflights users on 3/4. 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.
Sat 4/111:45 pm
BIS
- STL
1 stop7h 09m
United Airlines
Tue 4/144:30 pm
STL
- BIS
1 stop7h 13m
United Airlines
Deal found 3/4![United Airlines logo]()
$349
This Delta deal was found by Cheapflights users on 3/6. 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 8/277:31 am
BIS
- MDW
1 stop5h 36m
Delta
Sat 8/296:45 pm
MDW
- BIS
1 stop4h 29m
Delta
Deal found 3/6![Delta logo]()
$347
This United Airlines deal was found by Cheapflights users on 3/4. 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.
Fri 4/176:20 pm
FAR
- PIA
1 stop4h 37m
United Airlines
Sat 4/186:30 am
PIA
- FAR
1 stop4h 26m
United Airlines
Deal found 3/4![United Airlines logo]()
$350
This Delta deal was found by Cheapflights users on 3/5. 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 4/97:40 am
BIS
- ORD
1 stop3h 55m
Delta
Sun 4/127:00 pm
ORD
- BIS
1 stop4h 27m
Delta
Deal found 3/5![Delta logo]()
$350
This United Airlines deal was found by Cheapflights users on 3/3. 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.
Sat 4/114:49 pm
FAR
- STL
1 stop5h 03m
United Airlines
Wed 4/158:54 am
STL
- FAR
1 stop7h 32m
United Airlines
Deal found 3/3![United Airlines logo]()
$359
This Delta deal was found by Cheapflights users on 3/3. 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.
Thu 8/271:10 pm
BIS
- ORD
1 stop6h 33m
Delta
Sat 8/293:50 pm
ORD
- BIS
1 stop4h 03m
Delta
Deal found 3/3![Delta logo]()
$357
This United Airlines deal was found by Cheapflights users on 3/5. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/92:30 pm
FAR
- STL
1 stop6h 43m
United Airlines
Sun 4/127:45 am
STL
- FAR
1 stop6h 10m
United Airlines
Deal found 3/5![United Airlines logo]()
$359
This United Airlines deal was found by Cheapflights users on 3/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/106:20 pm
FAR
- STL
1 stop4h 51m
United Airlines
Tue 4/146:30 am
STL
- FAR
1 stop4h 26m
United Airlines
Deal found 3/7![United Airlines logo]()
$359
This Delta deal was found by Cheapflights users on 3/7. 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 6/191:30 pm
FAR
- ORD
1 stop6h 13m
Delta
Sun 6/216:00 am
ORD
- FAR
1 stop4h 05m
Delta
Deal found 3/7![Delta logo]()
$369
This Delta deal was found by Cheapflights users on 3/7. 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 4/91:26 pm
BIS
- MDW
1 stop5h 14m
Delta
Mon 4/137:16 pm
MDW
- BIS
1 stop3h 56m
Delta
Deal found 3/7![Delta logo]()
$379
Last-minute flights from North Dakota to IllinoisDiscover last-minute flight deals from North Dakota to Illinois. Data last updated March 8, 2026 and is based on user searches.
Discover last-minute flight deals from North Dakota to Illinois. Data last updated March 8, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 3/3. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/187:20 pm
FAR
- ORD
Nonstop2h 06m
American Airlines
Wed 4/810:10 pm
ORD
- FAR
Nonstop2h 06m
American Airlines
Deal found 3/3![American Airlines logo]()
$249
This Delta deal was found by Cheapflights users on 3/7. 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.
Tue 3/245:05 am
FAR
- MDW
1 stop3h 45m
Delta
Fri 4/37:20 pm
MDW
- FAR
1 stop3h 51m
Delta
Deal found 3/7![Delta logo]()
$269
This United Airlines deal was found by Cheapflights users on 3/5. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/276:35 pm
FAR
- PIA
1 stop3h 45m
United Airlines
Sun 3/295:25 pm
PIA
- FAR
1 stop5h 59m
United Airlines
Deal found 3/5![United Airlines logo]()
$289
This Delta deal was found by Cheapflights users on 3/7. 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.
Sat 3/285:05 am
FAR
- MDW
1 stop3h 45m
Delta
Fri 4/37:20 pm
MDW
- FAR
1 stop3h 51m
Delta
Deal found 3/7![Delta logo]()
$249
This Delta deal was found by Cheapflights users on 3/7. 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.
Sat 3/285:05 am
FAR
- MDW
1 stop3h 45m
Delta
Mon 3/307:20 pm
MDW
- FAR
1 stop3h 51m
Delta
Deal found 3/7![Delta logo]()
$274
This Delta deal was found by Cheapflights users on 3/3. 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 3/315:05 am
FAR
- MDW
2 stops7h 24m
Delta
Tue 4/77:20 pm
MDW
- FAR
1 stop3h 51m
Delta
Deal found 3/3![Delta logo]()
$254
This American Airlines deal was found by Cheapflights users on 3/4. 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.
Sat 4/112:17 pm
FAR
- STL
1 stop5h 52m
American Airlines
Wed 4/1512:55 pm
STL
- FAR
1 stop6h 00m
American Airlines
Deal found 3/4![American Airlines logo]()
$289
This American Airlines deal was found by Cheapflights users on 3/4. 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.
Sat 4/1812:59 pm
BIS
- ORD
Nonstop2h 24m
American Airlines
Sat 4/259:55 am
ORD
- BIS
Nonstop2h 34m
American Airlines
Deal found 3/4![American Airlines logo]()
$230
This Delta deal was found by Cheapflights users on 3/4. 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 4/188:05 am
BIS
- MDW
1 stop5h 27m
Delta
Sat 4/252:12 pm
MDW
- BIS
1 stop5h 23m
Delta
Deal found 3/4![Delta logo]()
$251
This Delta deal was found by Cheapflights users on 3/4. 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 4/188:05 am
BIS
- ORD
1 stop3h 29m
Delta
Sat 4/2512:14 pm
ORD
- BIS
1 stop4h 22m
Delta
Deal found 3/4![Delta logo]()
$251
This American Airlines deal was found by Cheapflights users on 3/7. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/1812:59 pm
BIS
- ORD
Nonstop2h 24m
American Airlines
Sun 4/199:55 am
ORD
- BIS
Nonstop2h 34m
American Airlines
Deal found 3/7![American Airlines logo]()
$276
This Delta deal was found by Cheapflights users on 3/4. 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 4/2512:36 pm
MOT
- ORD
1 stop7h 16m
Delta
Wed 4/296:25 am
ORD
- MOT
1 stop5h 30m
Delta
Deal found 3/4![Delta logo]()
$288
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 March 8, 2026.
Search for one-way flight options from North Dakota to Illinois. Find affordable one-way fares based on user searches. Data last updated March 8, 2026.
This Trip.com deal was found by Cheapflights users on 3/7. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/37:37 pm
FAR
- STL
1 stop23h 55m
Frontier
Deal found 3/7![Frontier logo]()
$89
This American Airlines deal was found by Cheapflights users on 3/3. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/212:59 pm
BIS
- ORD
Nonstop2h 24m
American Airlines
Deal found 3/3![American Airlines logo]()
$116
This Delta deal was found by Cheapflights users on 3/5. 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 4/81:26 pm
BIS
- MDW
1 stop5h 14m
Delta
Deal found 3/5![Delta logo]()
$126
This Delta deal was found by Cheapflights users on 3/3. 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 5/51:19 pm
BIS
- ORD
1 stop4h 54m
Delta
Deal found 3/3![Delta logo]()
$126
This Kiwi.com deal was found by Cheapflights users on 3/6. 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 4/167:56 pm
FAR
- ORD
1 stop13h 54m
Frontier
Deal found 3/6![Frontier logo]()
$129
This Kiwi.com deal was found by Cheapflights users on 3/3. 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.
Fri 5/17:56 pm
FAR
- ORD
2 stops46h 19m
Frontier
Deal found 3/3![Frontier logo]()
$135
This Kiwi.com deal was found by Cheapflights users on 3/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/88:00 pm
FAR
- ORD
2 stops26h 39m
Frontier
Deal found 3/7![Frontier logo]()
$137
This Kiwi.com deal was found by Cheapflights users on 3/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/1012:45 pm
FAR
- ORD
2 stops42h 02m
Multiple Airlines
Deal found 3/4![Multiple Airlines logo]()
$138
This Kiwi.com deal was found by Cheapflights users on 3/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/292:32 pm
FAR
- ORD
1 stop15h 36m
Multiple Airlines
Deal found 3/4![Multiple Airlines logo]()
$139
This Kiwi.com deal was found by Cheapflights users on 3/6. 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 5/317:59 pm
FAR
- STL
1 stop23h 14m
Frontier
Deal found 3/6![Frontier logo]()
$145
This Kiwi.com deal was found by Cheapflights users on 3/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/62:32 pm
FAR
- ORD
1 stop14h 53m
Multiple Airlines
Deal found 3/7![Multiple Airlines logo]()
$147
This Kiwi.com deal was found by Cheapflights users on 3/6. 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 5/42:29 pm
FAR
- ORD
2 stops24h 42m
Frontier
Deal found 3/6![Frontier logo]()
$149
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 March 8, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $209 (United Airlines) |
One-way from | $89 (Trip.com) |
Popular in | July |
Cheapest in | January |
Average price | $326 |
Good round-trip deal | $393 or less |
Good one-way deal | $280 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 March 8, 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
Quickest round-trip
FargoChicago
FAR - ORD
FARORD
Fargo Hector Field
Fri 4/10
1:31 pm-3:40 pm
Nonstop2h 09m
Chicago O'Hare Intl
Sun 4/12
11:51 am-1:55 pm
Nonstop2h 04m
$229
FargoChicago
FAR - MDW
FARMDW
Fargo Hector Field
Sat 4/18
5:00 am-9:06 am
1 stop4h 06m
Chicago Midway
Sat 4/25
2:12 pm-7:45 pm
1 stop5h 33m
$249
FargoChicago
FAR - MDW
FARMDW
Fargo Hector Field
Tue 3/24
5:05 am-8:50 am
1 stop3h 45m
Chicago Midway
Tue 3/31
7:20 pm-11:11 pm
1 stop3h 51m
$269
MinotChicago
MOT - ORD
MOTORD
Minot
Sat 4/25
12:36 pm-7:52 pm
1 stop7h 16m
Chicago O'Hare Intl
Wed 4/29
6:25 am-11:55 am
1 stop5h 30m
$288
FargoPeoria
FAR - PIA
FARPIA
Fargo Hector Field
Fri 3/27
6:35 pm-10:20 pm
1 stop3h 45m
Greater Peoria
Sun 3/29
5:25 pm-11:24 pm
1 stop5h 59m
$289
BismarckSt. Louis
BIS - STL
BISSTL
Bismarck
Tue 7/14
6:25 pm-11:57 pm
1 stop5h 32m
Lambert-St Louis
Tue 7/21
4:48 pm-11:41 pm
1 stop6h 53m
$289
FargoSt. Louis
FAR - STL
FARSTL
Fargo Hector Field
Fri 4/3
6:20 pm-11:11 pm
1 stop4h 51m
Lambert-St Louis
Sat 4/4
7:45 am-1:49 pm
1 stop6h 04m
$289
FargoSt. Louis
FAR - STL
FARSTL
Fargo Hector Field
Sun 4/5
1:31 pm-7:31 pm
1 stop6h 00m
Lambert-St Louis
Sun 4/12
7:45 am-1:55 pm
1 stop6h 10m
$294
BismarckChicago
BIS - MDW
BISMDW
Bismarck
Fri 5/1
1:19 pm-6:36 pm
1 stop5h 17m
Chicago Midway
Sat 5/2
2:12 pm-7:35 pm
1 stop5h 23m
$306
WillistonChicago
XWA - ORD
XWAORD
Williston Basin Intl
Fri 6/26
6:26 pm-12:44 am
1 stop6h 18m
Chicago O'Hare Intl
Sun 7/5
5:00 am-10:52 am
1 stop5h 52m
$307
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
BIS-MDW
FAR-ORD
BIS-ORD
FAR-PIA
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
BIS-MDW
FAR-ORD
BIS-ORD
What is the cheapest month to book a flight from North Dakota to Illinois?
Currently, January is the cheapest month in which you can book a flight from North Dakota to Illinois (average of $209). Flying from North Dakota to Illinois in March is currently the most expensive (average of $270). 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 March 8, 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 morning, which can drop the price by up to 14% versus a flight at noon.
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 February 21, 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 March 8, 2026.
The most flights from USND to USIL are scheduled on a Sunday (21 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (8 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 March 8, 2026.
Read through reviews of airlines operating flights from North Dakota to Illinois, such as Delta, United Airlines, and American 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.
Comfort
7.9
Overall
7.9
Boarding
8.1
Entertainment
7.8
Food
7.2
Crew
8.5
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Comfort
7.9
Overall
7.9
Boarding
8.1
Entertainment
7.8
Food
7.2
Crew
8.5
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Comfort
7.9
Overall
7.9
Boarding
8.1
Entertainment
7.8
Food
7.2
Crew
8.5
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Comfort
7.9
Overall
7.9
Boarding
8.1
Entertainment
7.8
Food
7.2
Crew
8.5
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Comfort
7.9
Overall
7.9
Boarding
8.1
Entertainment
7.8
Food
7.2
Crew
8.5
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
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.
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
Return Flight Options
Top destinations
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 March 8, 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 March 8, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$209 | Average$334 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$209 | Average$325 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$218 | Average$337 | FlexibilityNo cancel fee | On-timeN/A |