$30+ Cheap flights from Chicago (CHI) to Illinois
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/7. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — ORD
Nov 18 — Nov 251
Round-trip
1 adult, Economy
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Find cheap flights from Chicago 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
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Cheapest flights from Chicago to IllinoisExplore the most affordable flight options available from Chicago to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 19, 2026.
Explore the most affordable flight options available from Chicago to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 19, 2026.
This Booking.com deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2712:30 pm -
Nonstop1h 25m
Sat 10/313:35 pm -
Nonstop1h 45m
Deal found 10/19![Contour logo]()
$65
This Booking.com deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/312:15 pm -
Nonstop1h 25m
Sat 11/73:35 pm -
Nonstop1h 45m
Deal found 10/19![Contour logo]()
$66
This Booking.com deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/712:15 pm -
Nonstop1h 25m
Wed 11/119:55 am -
Nonstop1h 45m
Deal found 10/16![Contour logo]()
$67
This Contour deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Contour is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1212:15 pm -
Nonstop1h 25m
Tue 11/173:35 pm -
Nonstop1h 45m
Deal found 10/18![Contour logo]()
$78
This Mytrip deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” 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 11/1312:15 pm -
Nonstop1h 25m
Sun 11/159:55 am -
Nonstop1h 45m
Deal found 10/15![Contour logo]()
$101
This Booking.com deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/2412:30 pm -
Nonstop1h 25m
Sun 10/259:55 am -
Nonstop1h 45m
Deal found 10/15![Contour logo]()
$123
This United Airlines deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/135:00 pm -
Nonstop1h 10m
Fri 11/209:10 am -
Nonstop1h 09m
Deal found 10/19![United Airlines logo]()
$149
This Booking.com deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/212:15 pm -
Nonstop1h 25m
Sun 11/159:55 am -
Nonstop1h 45m
Deal found 10/18![Contour logo]()
$151
This United Airlines deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” 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 10/314:45 pm -
Nonstop1h 10m
Mon 11/29:10 am -
Nonstop1h 09m
Deal found 10/15![United Airlines logo]()
$159
This United Airlines deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” 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 10/245:30 pm -
Nonstop1h 13m
Wed 10/286:57 pm -
Nonstop1h 28m
Deal found 10/14![United Airlines logo]()
$174
This United Airlines deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” 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 11/16:59 am -
Nonstop1h 10m
Thu 11/56:57 pm -
Nonstop1h 28m
Deal found 10/18![United Airlines logo]()
$191
This United Airlines deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/224:40 pm -
Nonstop1h 13m
Sun 10/259:10 am -
Nonstop1h 09m
Deal found 10/19![United Airlines logo]()
$199
Best flights from Chicago to IllinoisDiscover carefully curated flight deals from Chicago to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 19, 2026.
Discover carefully curated flight deals from Chicago to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 19, 2026.
This Mytrip deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” 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 11/1112:15 pm -
Nonstop1h 25m
Wed 11/189:55 am -
Nonstop1h 45m
Deal found 10/15![Contour logo]()
$66
This Booking.com deal was found by Cheapflights users on 10/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/712:15 pm -
Nonstop1h 25m
Wed 11/119:55 am -
Nonstop1h 45m
Deal found 10/17![Contour logo]()
$67
This United Airlines deal was found by Cheapflights users on 10/17. Clicking the “Pick Dates” 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 11/56:59 am -
Nonstop1h 10m
Thu 11/129:10 am -
Nonstop1h 09m
Deal found 10/17![United Airlines logo]()
$149
This CheapOair deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” 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.
Thu 11/1212:15 pm -
Nonstop1h 25m
Tue 11/173:35 pm -
Nonstop1h 45m
Deal found 10/16![Contour logo]()
$78
This Contour deal was found by Cheapflights users on 10/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Contour is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/3112:30 pm -
Nonstop1h 25m
Wed 11/49:55 am -
Nonstop1h 45m
Deal found 10/17![Contour logo]()
$78
This Mytrip deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” 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 11/1312:15 pm -
Nonstop1h 25m
Sun 11/159:55 am -
Nonstop1h 45m
Deal found 10/15![Contour logo]()
$101
This United Airlines deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” 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 11/135:00 pm -
Nonstop1h 10m
Fri 11/209:10 am -
Nonstop1h 09m
Deal found 10/16![United Airlines logo]()
$149
This American Airlines deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” 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 12/411:00 pm -
Nonstop1h 36m
Mon 12/76:39 am -
Nonstop1h 56m
Deal found 10/15![American Airlines logo]()
$303
This United Airlines deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” 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 10/307:25 am -
Nonstop1h 10m
Tue 11/37:02 pm -
Nonstop1h 28m
Deal found 10/15![United Airlines logo]()
$159
This Booking.com deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/2412:30 pm -
Nonstop1h 25m
Sun 10/259:55 am -
Nonstop1h 45m
Deal found 10/15![Contour logo]()
$123
This United Airlines deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” 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 10/314:45 pm -
Nonstop1h 10m
Mon 11/29:10 am -
Nonstop1h 09m
Deal found 10/16![United Airlines logo]()
$159
This United Airlines deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/175:00 pm -
Nonstop1h 10m
Tue 11/246:57 pm -
Nonstop1h 28m
Deal found 10/19![United Airlines logo]()
$159
This United Airlines deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” 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 10/314:45 pm -
Nonstop1h 10m
Wed 11/49:10 am -
Nonstop1h 09m
Deal found 10/16![United Airlines logo]()
$159
This United Airlines deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/46:59 am -
Nonstop1h 10m
Sun 11/86:57 pm -
Nonstop1h 28m
Deal found 10/19![United Airlines logo]()
$159
This United Airlines deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” 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 11/144:45 pm -
Nonstop1h 10m
Sun 11/156:57 pm -
Nonstop1h 28m
Deal found 10/15![United Airlines logo]()
$159
This American Airlines deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” 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.
Mon 11/1611:00 pm -
Nonstop1h 07m
Mon 11/2311:25 am -
Nonstop1h 18m
Deal found 10/18![American Airlines logo]()
$309
This United Airlines deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” 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 10/304:45 pm -
Nonstop1h 10m
Mon 11/26:57 pm -
Nonstop1h 28m
Deal found 10/16![United Airlines logo]()
$159
This United Airlines deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/86:59 am -
Nonstop1h 10m
Sun 11/159:10 am -
Nonstop1h 09m
Deal found 10/19![United Airlines logo]()
$159
This American Airlines deal was found by Cheapflights users on 10/17. Clicking the “Pick Dates” 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 11/148:25 am -
Nonstop1h 30m
Sat 11/2110:34 am -
Nonstop1h 46m
Deal found 10/17![American Airlines logo]()
$315
This American Airlines deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” 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 10/3111:00 pm -
Nonstop1h 10m
Wed 11/45:39 pm -
Nonstop1h 24m
Deal found 10/16![American Airlines logo]()
$339
This American Airlines deal was found by Cheapflights users on 10/17. Clicking the “Pick Dates” 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 10/2310:45 pm -
Nonstop1h 33m
Sat 11/2110:34 am -
Nonstop1h 46m
Deal found 10/17![American Airlines logo]()
$341
This American Airlines deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” 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.
Mon 11/308:15 am -
Nonstop1h 34m
Mon 12/76:39 am -
Nonstop1h 56m
Deal found 10/16![American Airlines logo]()
$363
This American Airlines deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/311:00 pm -
Nonstop1h 27m
Sat 11/77:05 am -
Nonstop1h 50m
Deal found 10/19![American Airlines logo]()
$369
This American Airlines deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” 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 10/3010:45 pm -
Nonstop1h 33m
Tue 11/36:46 am -
Nonstop1h 50m
Deal found 10/15![American Airlines logo]()
$395
This United Airlines deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” 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 11/184:30 pm -
Nonstop1h 13m
Wed 11/258:13 am -
Nonstop1h 17m
Deal found 10/18![United Airlines logo]()
$309
This American Airlines deal was found by Cheapflights users on 10/17. Clicking the “Pick Dates” 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 10/2310:45 pm -
Nonstop1h 33m
Mon 10/266:49 am -
Nonstop1h 39m
Deal found 10/17![American Airlines logo]()
$421
This United Airlines deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” 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 10/299:47 pm -
Nonstop1h 12m
Mon 11/210:40 am -
Nonstop1h 18m
Deal found 10/14![United Airlines logo]()
$339
This American Airlines deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” 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 10/308:30 am -
Nonstop1h 36m
Mon 11/26:45 am -
Nonstop1h 50m
Deal found 10/16![American Airlines logo]()
$421
This American Airlines deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” 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 11/1411:05 pm -
Nonstop1h 05m
Sun 11/153:11 pm -
Nonstop1h 19m
Deal found 10/15![American Airlines logo]()
$477
This United Airlines deal was found by Cheapflights users on 10/17. Clicking the “Pick Dates” 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 12/119:49 pm -
Nonstop1h 10m
Sun 12/138:33 am -
Nonstop1h 12m
Deal found 10/17![United Airlines logo]()
$399
Last-minute flights from Chicago to IllinoisDiscover last-minute flight deals from Chicago to Illinois. Data last updated October 19, 2026 and is based on user searches.
Discover last-minute flight deals from Chicago to Illinois. Data last updated October 19, 2026 and is based on user searches.
This Booking.com deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/2412:30 pm -
Nonstop1h 25m
Sun 10/259:55 am -
Nonstop1h 45m
Deal found 10/15![Contour logo]()
$123
This Booking.com deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2712:30 pm -
Nonstop1h 25m
Sat 10/313:35 pm -
Nonstop1h 45m
Deal found 10/19![Contour logo]()
$65
This United Airlines deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” 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 10/314:45 pm -
Nonstop1h 10m
Wed 11/49:10 am -
Nonstop1h 09m
Deal found 10/16![United Airlines logo]()
$159
This United Airlines deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” 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 10/314:45 pm -
Nonstop1h 10m
Mon 11/29:10 am -
Nonstop1h 09m
Deal found 10/18![United Airlines logo]()
$174
This United Airlines deal was found by Cheapflights users on 10/17. Clicking the “Pick Dates” 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 11/15:00 pm -
Nonstop1h 10m
Thu 11/59:10 am -
Nonstop1h 09m
Deal found 10/17![United Airlines logo]()
$191
This Booking.com deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/212:15 pm -
Nonstop1h 25m
Sun 11/159:55 am -
Nonstop1h 45m
Deal found 10/18![Contour logo]()
$151
This Booking.com deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/312:15 pm -
Nonstop1h 25m
Sat 11/73:35 pm -
Nonstop1h 45m
Deal found 10/19![Contour logo]()
$66
This Booking.com deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/712:15 pm -
Nonstop1h 25m
Wed 11/119:55 am -
Nonstop1h 45m
Deal found 10/16![Contour logo]()
$67
This Mytrip deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1112:15 pm -
Nonstop1h 25m
Wed 11/189:55 am -
Nonstop1h 45m
Deal found 10/19![Contour logo]()
$77
This Contour deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Contour is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1212:15 pm -
Nonstop1h 25m
Tue 11/173:35 pm -
Nonstop1h 45m
Deal found 10/19![Contour logo]()
$78
This Mytrip deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” 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 11/1312:15 pm -
Nonstop1h 25m
Sun 11/159:55 am -
Nonstop1h 45m
Deal found 10/15![Contour logo]()
$101
This United Airlines deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/135:00 pm -
Nonstop1h 10m
Fri 11/209:10 am -
Nonstop1h 09m
Deal found 10/19![United Airlines logo]()
$149
One-way flights from Chicago to IllinoisSearch for one-way flight options from Chicago to Illinois. Find affordable one-way fares based on user searches. Data last updated October 19, 2026.
Search for one-way flight options from Chicago to Illinois. Find affordable one-way fares based on user searches. Data last updated October 19, 2026.
This Booking.com deal was found by Cheapflights users on 10/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/712:15 pm -
Nonstop1h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/17![Contour logo]()
$30
This Booking.com deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/3012:30 pm -
Nonstop1h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/16![Contour logo]()
$50
This United Airlines deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” 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 10/304:45 pm -
Nonstop1h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/16![United Airlines logo]()
$93
This Booking.com deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/212:15 pm -
Nonstop1h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/19![Contour logo]()
$96
This United Airlines deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” 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 10/245:30 pm -
Nonstop1h 13m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/16![United Airlines logo]()
$143
This Kiwi.com deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” 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 1/136:00 am -
2 stops37h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/14![Multiple Airlines logo]()
$156
This Kiwi.com deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” 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 11/67:49 pm -
2 stops24h 04m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/14![Multiple Airlines logo]()
$163
This Kiwi.com deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” 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 1/1410:18 am -
1 stop21h 36m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/14![Multiple Airlines logo]()
$167
This Kiwi.com deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” 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 12/1110:37 pm -
2 stops33h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/14![Multiple Airlines logo]()
$184
This Kiwi.com deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” 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 12/167:32 pm -
2 stops36h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/14![Multiple Airlines logo]()
$185
This Kiwi.com deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” 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 12/168:15 am -
2 stops32h 51m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/14![Multiple Airlines logo]()
$186
This Kiwi.com deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” 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.
Tue 12/157:32 pm -
2 stops36h 32m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/14![Multiple Airlines logo]()
$195
Find flight deals from Chicago to Illinois
Keep the following information in mind while searching for Chicago to Illinois flight deals. Data was last updated October 19, 2026.
Round-trip from | $65 (Mytrip) |
|---|---|
One-way from | $30 (Booking.com) |
Good round-trip deal | $238 or less |
Good one-way deal | $93 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Chicago 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 7,457,451 searches. Data last updated October 19, 2026.
Use the filters below to find and compare flights from Chicago to Illinois that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
ChicagoQuincy
ORD Chicago O'Hare Intl - UIN Quincy Regional
ORDUIN
Chicago O'Hare Intl
Sat 11/7
12:15 pm-1:40 pm
Nonstop1h 25m
Quincy Regional
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$30
ChicagoQuincy
ORD Chicago O'Hare Intl - UIN Quincy Regional
ORDUIN
Chicago O'Hare Intl
Sun 11/1
12:15 pm-1:40 pm
Nonstop1h 25m
Quincy Regional
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$50
ChicagoQuincy
ORD Chicago O'Hare Intl - UIN Quincy Regional
ORDUIN
Chicago O'Hare Intl
Wed 11/11
12:15 pm-1:40 pm
Nonstop1h 25m
Quincy Regional
Wed 11/18
9:55 am-11:40 am
Nonstop1h 45m
$66
ChicagoQuincy
ORD Chicago O'Hare Intl - UIN Quincy Regional
ORDUIN
Chicago O'Hare Intl
Sat 11/7
12:15 pm-1:40 pm
Nonstop1h 25m
Quincy Regional
Wed 11/11
9:55 am-11:40 am
Nonstop1h 45m
$67
ChicagoQuincy
ORD Chicago O'Hare Intl - UIN Quincy Regional
ORDUIN
Chicago O'Hare Intl
Thu 11/12
12:15 pm-1:40 pm
Nonstop1h 25m
Quincy Regional
Tue 11/17
3:35 pm-5:20 pm
Nonstop1h 45m
$78
ChicagoQuincy
ORD Chicago O'Hare Intl - UIN Quincy Regional
ORDUIN
Chicago O'Hare Intl
Sat 10/31
12:30 pm-1:55 pm
Nonstop1h 25m
Quincy Regional
Wed 11/4
9:55 am-11:40 am
Nonstop1h 45m
$78
ChicagoDecatur
ORD Chicago O'Hare Intl - DEC Decatur Arpt
ORDDEC
Chicago O'Hare Intl
Fri 11/13
6:59 am-8:09 am
Nonstop1h 10m
Decatur Arpt
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$93
ChicagoDecatur
ORD Chicago O'Hare Intl - DEC Decatur Arpt
ORDDEC
Chicago O'Hare Intl
Mon 1/11
6:59 am-8:17 am
Nonstop1h 18m
Decatur Arpt
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$93
ChicagoDecatur
ORD Chicago O'Hare Intl - DEC Decatur Arpt
ORDDEC
Chicago O'Hare Intl
Fri 10/30
4:45 pm-5:55 pm
Nonstop1h 10m
Decatur Arpt
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$93
ChicagoDecatur
ORD Chicago O'Hare Intl - DEC Decatur Arpt
ORDDEC
Chicago O'Hare Intl
Fri 11/6
5:00 pm-6:10 pm
Nonstop1h 10m
Decatur Arpt
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$93
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Chicago to Illinois
Have a flexible travel schedule? Discover the best time to fly to Illinois from Chicago with our price prediction graph.
ORD-UIN
ORD-DEC
ORD-SPI
ORD-CMI
ORD-BMI
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 Chicago to Illinois
CHI-USIL
ORD-UIN
ORD-DEC
ORD-SPI
ORD-CMI
What is the cheapest month to book a flight from Chicago to Illinois?
Currently, February is the cheapest month in which you can book a flight from Chicago to Illinois (average of $138). Flying from Chicago to Illinois in September is currently the most expensive (average of $374). 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 CHI to IL?
Find hourly flight availability from Chicago 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 October 19, 2026.
A simple way to save on the total cost of your ticket is to fly from Chicago to Illinois in the afternoon. If you’re flexible enough to do this you can expect to save up to 26% on your trip compared to booking a flight in the evening.
What is the cheapest day to fly from Chicago to Illinois?
Use this chart to determine the cheapest time to fly round-trip from Chicago to Illinois. Price data was last updated on November 29, 2025.
Travelers seeking maximum savings on their Chicago to Illinois flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Saturday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
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 October 19, 2026.
Read reviews from past customers who have flown Contour from Chicago to Illinois. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Boarding
7.5
Food
6.8
Entertainment
6.1
Overall
7.5
Comfort
7.3
Crew
7.8
Reviews
1 / 2
10.0
ExcellentAnonymous,Oct 2025
CLT - PAH
Boarding
7.5
Food
6.8
Entertainment
6.1
Overall
7.5
Comfort
7.3
Crew
7.8
Reviews
1 / 2
10.0
ExcellentAnonymous,Oct 2025
CLT - PAH
Related info for your journey
Find useful and relevant information for your journey from Chicago 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 Chicago 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 Chicago to Illinois by cabin class
Find flights from Chicago to Illinois, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Chicago and Illinois flights
Browse other Chicago and Illinois flight options. Last updated on October 19, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Chicago to Illinois flights
Consider these flights traveling from Chicago to Illinois.
Top 2 airlines flying from Chicago to Illinois
Discover the top 2 airlines that operate flights from Chicago 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 7,457,451 searches. Data last updated October 19, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$168 | Average$671 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$239 | Average$279 | FlexibilityNo cancel fee | On-time69% |