$143+ Cheap flights from Columbia, MO (COU) 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 11/9. Fares are subject to change and may not be available on all flights or dates of travel.
COU — ORD
Oct 5 — Oct 121
Round-trip
1 adult, Economy
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Find cheap flights from Columbia 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 Columbia to IllinoisExplore the most affordable flight options available from Columbia to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 5, 2026.
Explore the most affordable flight options available from Columbia to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 5, 2026.
This American Airlines deal was found by Cheapflights users on 9/2. 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 11/56:13 am -
Nonstop1h 45m
Mon 11/94:20 pm -
Nonstop1h 32m
Deal found 9/2![American Airlines logo]()
$269
This American Airlines deal was found by Cheapflights users on 9/2. 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.
Fri 10/96:24 pm -
Nonstop1h 46m
Sun 10/118:29 am -
Nonstop1h 29m
Deal found 9/2![American Airlines logo]()
$284
This United Airlines deal was found by Cheapflights users on 9/2. 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 12/187:45 am -
Nonstop1h 49m
Sun 12/207:55 pm -
Nonstop1h 57m
Deal found 9/2![United Airlines logo]()
$288
This United Airlines deal was found by Cheapflights users on 9/3. 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 9/1811:17 am -
Nonstop1h 43m
Sun 9/209:20 pm -
Nonstop1h 35m
Deal found 9/3![United Airlines logo]()
$299
This American Airlines deal was found by Cheapflights users on 9/3. 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 9/106:32 pm -
Nonstop1h 58m
Wed 10/148:32 am -
Nonstop1h 29m
Deal found 9/3![American Airlines logo]()
$309
This United Airlines deal was found by Cheapflights users on 9/2. 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.
Tue 9/153:12 pm -
Nonstop1h 48m
Wed 9/2312:50 pm -
Nonstop1h 40m
Deal found 9/2![United Airlines logo]()
$314
This United Airlines deal was found by Cheapflights users on 9/3. 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 11/248:00 am -
Nonstop1h 45m
Sat 11/2812:45 pm -
Nonstop1h 33m
Deal found 9/3![United Airlines logo]()
$323
This American Airlines deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” 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 9/1010:38 am -
Nonstop1h 33m
Tue 9/158:24 am -
Nonstop1h 32m
Deal found 8/31![American Airlines logo]()
$324
This American Airlines deal was found by Cheapflights users on 9/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/812:43 pm -
Nonstop1h 36m
Tue 9/158:24 am -
Nonstop1h 32m
Deal found 9/1![American Airlines logo]()
$329
This American Airlines deal was found by Cheapflights users on 9/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/166:24 pm -
Nonstop1h 46m
Fri 10/237:18 pm -
Nonstop1h 37m
Deal found 9/1![American Airlines logo]()
$334
This United Airlines deal was found by Cheapflights users on 9/2. 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.
Mon 11/23:00 pm -
Nonstop1h 47m
Sun 11/159:25 pm -
Nonstop1h 33m
Deal found 9/2![United Airlines logo]()
$339
This American Airlines deal was found by Cheapflights users on 9/2. 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.
Fri 9/115:44 am -
Nonstop1h 46m
Sat 9/121:28 pm -
Nonstop1h 33m
Deal found 9/2![American Airlines logo]()
$349
Best flights from Columbia to IllinoisDiscover carefully curated flight deals from Columbia to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 5, 2026.
Discover carefully curated flight deals from Columbia to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 5, 2026.
This United Airlines deal was found by Cheapflights users on 9/3. 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 11/68:00 am -
Nonstop1h 45m
Wed 11/1112:45 pm -
Nonstop1h 33m
Deal found 9/3![United Airlines logo]()
$269
This American Airlines deal was found by Cheapflights users on 9/2. 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.
Wed 9/305:44 am -
1 stop39h 00m
Wed 10/711:31 am -
1 stop33h 24m
Deal found 9/2![American Airlines logo]()
$374
This United Airlines deal was found by Cheapflights users on 9/3. 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 10/318:00 am -
Nonstop1h 45m
Mon 11/29:25 pm -
Nonstop1h 33m
Deal found 9/3![United Airlines logo]()
$269
This United Airlines deal was found by Cheapflights users on 9/4. 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 9/1811:17 am -
Nonstop1h 43m
Sun 9/209:20 pm -
Nonstop1h 35m
Deal found 9/4![United Airlines logo]()
$299
This American Airlines deal was found by Cheapflights users on 9/3. 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 10/110:38 am -
1 stop47h 35m
Thu 10/811:31 am -
1 stop33h 24m
Deal found 9/3![American Airlines logo]()
$374
This United Airlines deal was found by Cheapflights users on 9/4. 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 10/166:15 am -
Nonstop1h 38m
Sat 10/179:20 pm -
Nonstop1h 35m
Deal found 9/4![United Airlines logo]()
$339
This United Airlines deal was found by Cheapflights users on 9/4. 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 10/156:15 am -
Nonstop1h 38m
Sat 10/179:00 am -
Nonstop1h 39m
Deal found 9/4![United Airlines logo]()
$339
This United Airlines deal was found by Cheapflights users on 9/4. 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 12/257:45 am -
Nonstop1h 49m
Tue 12/297:55 pm -
Nonstop1h 57m
Deal found 9/4![United Airlines logo]()
$359
This American Airlines deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” 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 11/56:47 am -
1 stop7h 25m
Mon 11/98:14 am -
Nonstop1h 34m
Deal found 8/31![American Airlines logo]()
$497
This American Airlines deal was found by Cheapflights users on 9/5. 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 10/236:24 pm -
1 stop16h 26m
Mon 10/265:00 am -
1 stop28h 58m
Deal found 9/5![American Airlines logo]()
$526
This United Airlines deal was found by Cheapflights users on 9/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/308:00 am -
Nonstop1h 45m
Sat 10/317:00 am -
2 stops13h 41m
Deal found 9/1![United Airlines logo]()
$501
This United Airlines deal was found by Cheapflights users on 9/4. 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 10/163:43 pm -
Nonstop1h 40m
Fri 10/169:20 pm -
Nonstop1h 35m
Deal found 9/4![United Airlines logo]()
$501
This American Airlines deal was found by Cheapflights users on 9/3. 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 9/186:32 pm -
1 stop39h 46m
Tue 9/225:18 pm -
1 stop40h 38m
Deal found 9/3![American Airlines logo]()
$741
This United Airlines deal was found by Cheapflights users on 9/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/13:19 pm -
Nonstop1h 40m
Fri 10/29:20 pm -
Nonstop1h 35m
Deal found 9/1![United Airlines logo]()
$507
This American Airlines deal was found by Cheapflights users on 9/4. 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.
Mon 9/215:44 am -
1 stop39h 00m
Thu 9/247:27 am -
1 stop50h 29m
Deal found 9/4![American Airlines logo]()
$741
This United Airlines deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” 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 9/2411:17 am -
Nonstop1h 43m
Fri 9/251:00 pm -
Nonstop1h 38m
Deal found 8/31![United Airlines logo]()
$507
This American Airlines deal was found by Cheapflights users on 9/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/163:31 pm -
1 stop21h 45m
Sun 9/201:49 pm -
1 stop30h 57m
Deal found 9/1![American Airlines logo]()
$756
This United Airlines deal was found by Cheapflights users on 9/4. 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 11/208:00 am -
Nonstop1h 45m
Sat 11/218:15 pm -
2 stops24h 26m
Deal found 9/4![United Airlines logo]()
$522
This American Airlines deal was found by Cheapflights users on 9/2. 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 9/175:44 am -
1 stop18h 43m
Fri 9/187:21 am -
1 stop31h 40m
Deal found 9/2![American Airlines logo]()
$1,109
This United Airlines deal was found by Cheapflights users on 9/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1611:20 am -
1 stop8h 40m
Sun 9/205:30 pm -
1 stop17h 09m
Deal found 9/1![United Airlines logo]()
$894
This United Airlines deal was found by Cheapflights users on 9/3. 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 9/186:15 am -
1 stop10h 51m
Tue 9/228:00 am -
1 stop14h 55m
Deal found 9/3![United Airlines logo]()
$914
Last-minute flights from Columbia to IllinoisDiscover last-minute flight deals from Columbia to Illinois. Data last updated September 5, 2026 and is based on user searches.
Discover last-minute flight deals from Columbia to Illinois. Data last updated September 5, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 9/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/812:43 pm -
Nonstop1h 36m
Tue 9/158:24 am -
Nonstop1h 32m
Deal found 9/1![American Airlines logo]()
$329
This American Airlines deal was found by Cheapflights users on 9/3. 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 9/105:44 am -
Nonstop1h 46m
Thu 10/88:32 am -
Nonstop1h 29m
Deal found 9/3![American Airlines logo]()
$309
This American Airlines deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” 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 9/1010:38 am -
Nonstop1h 33m
Tue 9/158:24 am -
Nonstop1h 32m
Deal found 8/31![American Airlines logo]()
$324
This American Airlines deal was found by Cheapflights users on 9/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/105:44 am -
Nonstop1h 46m
Sun 9/138:24 am -
Nonstop1h 32m
Deal found 9/1![American Airlines logo]()
$354
This American Airlines deal was found by Cheapflights users on 9/2. 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.
Fri 9/115:44 am -
Nonstop1h 46m
Sat 9/121:28 pm -
Nonstop1h 33m
Deal found 9/2![American Airlines logo]()
$349
This American Airlines deal was found by Cheapflights users on 9/3. 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 9/126:32 pm -
Nonstop1h 58m
Mon 9/144:31 pm -
Nonstop1h 31m
Deal found 9/3![American Airlines logo]()
$359
This United Airlines deal was found by Cheapflights users on 9/2. 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.
Tue 9/153:12 pm -
Nonstop1h 48m
Wed 9/2312:50 pm -
Nonstop1h 40m
Deal found 9/2![United Airlines logo]()
$314
This United Airlines deal was found by Cheapflights users on 9/3. 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 9/1811:17 am -
Nonstop1h 43m
Sun 9/209:20 pm -
Nonstop1h 35m
Deal found 9/3![United Airlines logo]()
$299
This American Airlines deal was found by Cheapflights users on 9/2. 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.
Fri 9/255:44 am -
Nonstop1h 46m
Sun 9/278:24 am -
Nonstop1h 32m
Deal found 9/2![American Airlines logo]()
$269
This American Airlines deal was found by Cheapflights users on 9/2. 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.
Fri 10/96:24 pm -
Nonstop1h 46m
Sun 10/118:29 am -
Nonstop1h 29m
Deal found 9/2![American Airlines logo]()
$284
This American Airlines deal was found by Cheapflights users on 9/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/166:24 pm -
Nonstop1h 46m
Fri 10/237:18 pm -
Nonstop1h 37m
Deal found 9/1![American Airlines logo]()
$334
This American Airlines deal was found by Cheapflights users on 9/5. 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.
Mon 10/1910:40 am -
Nonstop1h 34m
Sun 10/258:32 am -
Nonstop1h 29m
Deal found 9/5![American Airlines logo]()
$339
One-way flights from Columbia to IllinoisSearch for one-way flight options from Columbia to Illinois. Find affordable one-way fares based on user searches. Data last updated September 5, 2026.
Search for one-way flight options from Columbia to Illinois. Find affordable one-way fares based on user searches. Data last updated September 5, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/3. 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.
Mon 11/911:33 am -
2 stops25h 18m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Multiple Airlines logo]()
$143
This Kiwi.com deal was found by Cheapflights users on 9/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/93:06 pm -
2 stops27h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/1![Multiple Airlines logo]()
$156
This United Airlines deal was found by Cheapflights users on 9/4. 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.
Wed 10/2111:15 am -
Nonstop1h 43m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![United Airlines logo]()
$179
This Kiwi.com deal was found by Cheapflights users on 9/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/56:30 pm -
2 stops41h 21m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/1![Multiple Airlines logo]()
$180
This Kiwi.com deal was found by Cheapflights users on 9/4. 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.
Fri 9/115:28 pm -
1 stop29h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Multiple Airlines logo]()
$203
This Kiwi.com deal was found by Cheapflights users on 9/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/21:04 pm -
2 stops44h 16m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/1![Multiple Airlines logo]()
$206
This American Airlines deal was found by Cheapflights users on 9/4. 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.
Sun 10/46:32 pm -
Nonstop1h 58m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![American Airlines logo]()
$214
This Kiwi.com deal was found by Cheapflights users on 9/3. 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 11/612:58 pm -
1 stop19h 48m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Multiple Airlines logo]()
$219
This American Airlines deal was found by Cheapflights users on 9/2. 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 9/176:32 pm -
1 stop39h 46m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![American Airlines logo]()
$595
Find flight deals from Columbia to Illinois
Keep the following information in mind while searching for Columbia to Illinois flight deals. Data was last updated September 5, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $269 (American Airlines) |
One-way from | $143 (Kiwi.com) |
Popular in | April |
Cheapest in | January |
Average price | $263 |
Good round-trip deal | $321 or less |
Good one-way deal | $299 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Columbia 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 September 5, 2026.
Use the filters below to find and compare flights from Columbia to Illinois that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
ColumbiaChicago
COU Columbia Regional - ORD Chicago O'Hare Intl
COUORD
Columbia Regional
Thu 1/14
6:36 am-8:30 am
Nonstop1h 54m
Chicago O'Hare Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$179
ColumbiaChicago
COU Columbia Regional - ORD Chicago O'Hare Intl
COUORD
Columbia Regional
Wed 1/13
6:26 pm-8:13 pm
Nonstop1h 47m
Chicago O'Hare Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$179
ColumbiaChicago
COU Columbia Regional - ORD Chicago O'Hare Intl
COUORD
Columbia Regional
Sun 12/20
3:10 pm-4:54 pm
Nonstop1h 44m
Chicago O'Hare Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$254
ColumbiaChicago
COU Columbia Regional - ORD Chicago O'Hare Intl
COUORD
Columbia Regional
Fri 11/6
8:00 am-9:45 am
Nonstop1h 45m
Chicago O'Hare Intl
Wed 11/11
12:45 pm-2:18 pm
Nonstop1h 33m
$269
ColumbiaChicago
COU Columbia Regional - ORD Chicago O'Hare Intl
COUORD
Columbia Regional
Sat 10/31
8:00 am-9:45 am
Nonstop1h 45m
Chicago O'Hare Intl
Mon 11/2
9:25 pm-10:58 pm
Nonstop1h 33m
$269
ColumbiaChicago
COU Columbia Regional - ORD Chicago O'Hare Intl
COUORD
Columbia Regional
Sat 10/31
8:00 am-9:45 am
Nonstop1h 45m
Chicago O'Hare Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$274
ColumbiaChicago
COU Columbia Regional - ORD Chicago O'Hare Intl
COUORD
Columbia Regional
Mon 9/28
6:15 am-7:53 am
Nonstop1h 38m
Chicago O'Hare Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$274
ColumbiaChicago
COU Columbia Regional - ORD Chicago O'Hare Intl
COUORD
Columbia Regional
Fri 10/30
8:00 am-9:45 am
Nonstop1h 45m
Chicago O'Hare Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$274
Quickest round-trip
ColumbiaChicago
COU Columbia Regional - ORD Chicago O'Hare Intl
COUORD
Columbia Regional
Tue 12/1
3:04 pm-4:37 pm
Nonstop1h 33m
Chicago O'Hare Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$274
ColumbiaChicago
COU Columbia Regional - ORD Chicago O'Hare Intl
COUORD
Columbia Regional
Fri 12/4
3:04 pm-4:37 pm
Nonstop1h 33m
Chicago O'Hare Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$274
Showing 1-10 of 32 resultsSorted by cheapest first
Best time to book a flight from Columbia to Illinois
Have a flexible travel schedule? Discover the best time to fly to Illinois from Columbia with our price prediction graph.
COU-ORD
COU-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 Columbia to Illinois
COU-USIL
COU-ORD
COU-STL
What is the cheapest month to book a flight from Columbia, Missouri to Illinois?
Currently, January is the cheapest month in which you can book a flight from Columbia, Missouri to Illinois (average of $238). Flying from Columbia, Missouri to Illinois in April is currently the most expensive (average of $365). 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 COU to IL?
Find hourly flight availability from Columbia 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 September 5, 2026.
It’s typically best to fly out from Columbia, Missouri to Illinois in the afternoon. Doing so could potentially save you 14% on the flight price compared to flying at noon, which is usually more expensive.
Weekly flight availability from Columbia, Missouri to Illinois
Explore weekly flight availability from Columbia 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 September 5, 2026.
The most flights from COU to USIL are scheduled on a Monday (10 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (2 on average).
How much does it cost to fly round-trip from Columbia, Missouri to Illinois?
Airfare is typical for this route at the moment.
Columbia, Missouri to Illinois flights typically cost between $248 and $308 in November.The cheapest round-trip price found within the last 5 days was $269 on American Airlines (Nov 5-Nov 9).
How far ahead should I book a flight from Columbia, Missouri to Illinois?
The best time to book flights from Columbia, Missouri to Illinois is 89 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest day to fly from Columbia, Missouri to Illinois?
Use this chart to determine the cheapest time to fly round-trip from Columbia to Illinois. Price data was last updated on August 29, 2026.
Travelers seeking maximum savings on their Columbia, Missouri to Illinois flight should consider departing on Thursday evenings 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 September 5, 2026.
Read reviews from past customers who have flown United Airlines and American Airlines from Columbia to Illinois. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.1
Food
6.6
Comfort
7.3
Overall
7.4
Boarding
7.7
Crew
8.1
Reviews
1 / 20
4.0
OkayChris,Aug 2026
MIA - ORD
Entertainment
7.1
Food
6.6
Comfort
7.3
Overall
7.4
Boarding
7.7
Crew
8.1
Reviews
1 / 20
4.0
OkayChris,Aug 2026
MIA - ORD
Entertainment
7.1
Food
6.6
Comfort
7.3
Overall
7.4
Boarding
7.7
Crew
8.1
Reviews
1 / 20
4.0
OkayChris,Aug 2026
MIA - ORD
Related info for your journey
Find useful and relevant information for your journey from Columbia 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 Columbia 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 Columbia to Illinois by cabin class
Find flights from Columbia to Illinois, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Columbia and Illinois flights
Browse other Columbia and Illinois flight options. Last updated on September 5, 2026.
Popular flight searches
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Columbia to Illinois flights
Consider these flights traveling from Columbia to Illinois.
Top 2 airlines flying from Columbia to Illinois
Discover the top 2 airlines that operate flights from Columbia 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 September 5, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$179 | Average$305 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$184 | Average$270 | FlexibilityNo cancel fee | On-time71% |