$64+ Cheap flights from Kansas City (MCI) to Illinois
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/10. Fares are subject to change and may not be available on all flights or dates of travel.
MCI — ORD
Sep 16 — Sep 231
Round-trip
1 adult, Economy
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Find cheap flights from Kansas City to Illinois with Cheapflights
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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 Kansas City to IllinoisExplore the most affordable flight options available from Kansas City to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 17, 2026.
Explore the most affordable flight options available from Kansas City to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 17, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/14. 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 9/108:32 pm -
1 stop22h 45m
Mon 9/148:10 pm -
1 stop23h 27m
Deal found 8/14![Frontier logo]()
$149
This Frontier deal was found by Cheapflights users on 8/14. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/128:32 pm -
1 stop15h 35m
Mon 9/148:10 pm -
1 stop23h 27m
Deal found 8/14![Frontier logo]()
$210
This Southwest deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/52:25 pm -
Nonstop1h 00m
Sun 9/611:40 am -
Nonstop1h 05m
Deal found 8/12![Southwest logo]()
$217
This Frontier deal was found by Cheapflights users on 8/16. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2410:30 pm -
1 stop12h 47m
Mon 9/2812:17 pm -
1 stop9h 28m
Deal found 8/16![Frontier logo]()
$218
This CheapOair deal was found by Cheapflights users on 8/16. 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.
Mon 9/2810:30 pm -
1 stop13h 02m
Wed 9/308:10 pm -
1 stop23h 27m
Deal found 8/16![Frontier logo]()
$219
This Kiwi.com deal was found by Cheapflights users on 8/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/188:32 pm -
1 stop22h 45m
Mon 9/288:10 pm -
1 stop23h 27m
Deal found 8/16![Frontier logo]()
$222
This Southwest deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/52:25 pm -
Nonstop1h 00m
Tue 9/82:50 pm -
Nonstop1h 05m
Deal found 8/13![Southwest logo]()
$225
This Southwest deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1112:15 pm -
Nonstop1h 00m
Sat 9/1210:10 am -
Nonstop1h 10m
Deal found 8/13![Southwest logo]()
$231
This Kiwi.com deal was found by Cheapflights users on 8/14. 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 9/188:32 pm -
1 stop27h 51m
Mon 9/217:28 pm -
2 stops24h 09m
Deal found 8/14![Frontier logo]()
$237
This United Airlines deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” 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 9/46:36 pm -
Nonstop1h 54m
Sun 9/62:25 pm -
Nonstop1h 42m
Deal found 8/13![United Airlines logo]()
$239
This Frontier deal was found by Cheapflights users on 8/16. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/211:26 am -
1 stop8h 42m
Sat 9/57:11 am -
1 stop8h 54m
Deal found 8/16![Frontier logo]()
$240
This Frontier deal was found by Cheapflights users on 8/17. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/211:26 am -
1 stop11h 21m
Sat 9/56:05 am -
1 stop10h 00m
Deal found 8/17![Frontier logo]()
$240
Best flights from Kansas City to IllinoisDiscover carefully curated flight deals from Kansas City to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 17, 2026.
Discover carefully curated flight deals from Kansas City to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 17, 2026.
This Frontier deal was found by Cheapflights users on 8/16. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2410:30 pm -
1 stop12h 47m
Mon 9/2812:17 pm -
1 stop9h 28m
Deal found 8/16![Frontier logo]()
$218
This Southwest deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/53:10 pm -
1 stop5h 35m
Sun 9/611:40 am -
Nonstop1h 05m
Deal found 8/12![Southwest logo]()
$226
This United Airlines deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” 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 9/216:45 pm -
Nonstop1h 54m
Wed 9/235:55 pm -
Nonstop1h 43m
Deal found 8/13![United Airlines logo]()
$268
This American Airlines deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” 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 9/127:35 pm -
1 stop4h 30m
Sat 9/196:00 am -
1 stop3h 44m
Deal found 8/13![American Airlines logo]()
$289
This Southwest deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/52:25 pm -
Nonstop1h 00m
Tue 9/85:20 pm -
1 stop5h 55m
Deal found 8/13![Southwest logo]()
$228
This Kiwi.com deal was found by Cheapflights users on 8/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1810:30 pm -
2 stops20h 47m
Mon 9/288:10 pm -
1 stop23h 27m
Deal found 8/16![Frontier logo]()
$233
This Southwest deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/98:20 am -
Nonstop1h 05m
Wed 9/168:45 pm -
Nonstop1h 10m
Deal found 8/12![Southwest logo]()
$241
This United Airlines deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” 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 9/55:08 pm -
Nonstop1h 54m
Mon 9/77:17 am -
Nonstop1h 52m
Deal found 8/12![United Airlines logo]()
$290
This Southwest deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/811:55 am -
Nonstop1h 00m
Wed 9/98:25 am -
Nonstop1h 05m
Deal found 8/12![Southwest logo]()
$253
This United Airlines deal was found by Cheapflights users on 8/16. 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 9/111:08 pm -
Nonstop1h 52m
Sat 9/128:00 pm -
Nonstop1h 47m
Deal found 8/16![United Airlines logo]()
$293
This Southwest deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/106:00 am -
Nonstop1h 25m
Fri 11/135:20 pm -
2 stops6h 00m
Deal found 8/12![Southwest logo]()
$264
This United Airlines deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” 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 9/185:14 pm -
Nonstop1h 51m
Mon 9/217:17 am -
Nonstop1h 41m
Deal found 8/12![United Airlines logo]()
$302
This Southwest deal was found by Cheapflights users on 8/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/85:30 am -
Nonstop1h 25m
Sat 10/108:25 am -
Nonstop1h 30m
Deal found 8/14![Southwest logo]()
$277
This United Airlines deal was found by Cheapflights users on 8/16. 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.
Thu 9/177:32 am -
Nonstop1h 48m
Sun 9/207:17 am -
Nonstop1h 41m
Deal found 8/16![United Airlines logo]()
$318
This KAYAK deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/218:10 pm -
Nonstop1h 25m
Wed 9/234:15 pm -
1 stop5h 30m
Deal found 8/13![Southwest logo]()
$289
This United Airlines deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” 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 8/273:14 pm -
Nonstop1h 51m
Mon 8/317:59 pm -
Nonstop1h 45m
Deal found 8/12![United Airlines logo]()
$335
This Southwest deal was found by Cheapflights users on 8/16. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/185:30 pm -
Nonstop1h 25m
Tue 9/228:40 pm -
Nonstop1h 35m
Deal found 8/16![Southwest logo]()
$293
This United Airlines deal was found by Cheapflights users on 8/16. 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.
Thu 9/177:32 am -
Nonstop1h 48m
Wed 9/238:00 pm -
Nonstop1h 47m
Deal found 8/16![United Airlines logo]()
$347
This Southwest deal was found by Cheapflights users on 8/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/106:10 pm -
1 stop5h 15m
Mon 9/149:20 am -
1 stop6h 05m
Deal found 8/14![Southwest logo]()
$297
This United Airlines deal was found by Cheapflights users on 8/15. 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.
Tue 12/86:00 am -
1 stop4h 14m
Sat 12/128:10 am -
1 stop4h 17m
Deal found 8/15![United Airlines logo]()
$354
This Southwest deal was found by Cheapflights users on 8/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/262:25 pm -
Nonstop1h 00m
Thu 10/18:30 am -
Nonstop1h 05m
Deal found 8/15![Southwest logo]()
$297
This United Airlines deal was found by Cheapflights users on 8/14. 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 2/66:00 am -
1 stop4h 14m
Wed 2/108:10 am -
1 stop4h 17m
Deal found 8/14![United Airlines logo]()
$354
This Southwest deal was found by Cheapflights users on 8/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/108:25 am -
Nonstop1h 05m
Mon 9/142:20 pm -
Nonstop1h 05m
Deal found 8/14![Southwest logo]()
$297
This United Airlines deal was found by Cheapflights users on 8/16. 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.
Sun 10/47:30 am -
Nonstop1h 48m
Sun 10/48:30 pm -
Nonstop1h 47m
Deal found 8/16![United Airlines logo]()
$359
This Southwest deal was found by Cheapflights users on 8/16. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/115:30 pm -
1 stop6h 00m
Mon 9/146:20 am -
Nonstop1h 25m
Deal found 8/16![Southwest logo]()
$303
This United Airlines deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” 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 9/106:39 pm -
1 stop3h 56m
Wed 9/166:32 am -
1 stop3h 53m
Deal found 8/12![United Airlines logo]()
$359
This Southwest deal was found by Cheapflights users on 8/16. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/248:10 pm -
Nonstop1h 25m
Sun 9/278:00 am -
Nonstop1h 40m
Deal found 8/16![Southwest logo]()
$318
This United Airlines deal was found by Cheapflights users on 8/15. 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 9/410:00 am -
Nonstop1h 51m
Mon 9/77:17 am -
Nonstop1h 52m
Deal found 8/15![United Airlines logo]()
$360
This Southwest deal was found by Cheapflights users on 8/16. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/175:45 pm -
1 stop5h 45m
Wed 9/237:40 am -
2 stops5h 50m
Deal found 8/16![Southwest logo]()
$318
This United Airlines deal was found by Cheapflights users on 8/15. 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 9/45:08 pm -
Nonstop1h 54m
Tue 9/87:17 am -
Nonstop1h 41m
Deal found 8/15![United Airlines logo]()
$360
Last-minute flights from Kansas City to IllinoisDiscover last-minute flight deals from Kansas City to Illinois. Data last updated August 17, 2026 and is based on user searches.
Discover last-minute flight deals from Kansas City to Illinois. Data last updated August 17, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 8/17. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/211:26 am -
1 stop11h 21m
Sat 9/56:05 am -
1 stop10h 00m
Deal found 8/17![Frontier logo]()
$240
This Southwest deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/48:10 pm -
Nonstop1h 25m
Sat 9/512:00 pm -
Nonstop1h 25m
Deal found 8/13![Southwest logo]()
$245
This Southwest deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/52:25 pm -
Nonstop1h 00m
Sun 9/611:40 am -
Nonstop1h 05m
Deal found 8/12![Southwest logo]()
$217
This Southwest deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/52:25 pm -
Nonstop1h 00m
Tue 9/82:50 pm -
Nonstop1h 05m
Deal found 8/13![Southwest logo]()
$225
This Kiwi.com deal was found by Cheapflights users on 8/14. 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 9/108:32 pm -
1 stop22h 45m
Mon 9/148:10 pm -
1 stop23h 27m
Deal found 8/14![Frontier logo]()
$149
This Southwest deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1112:15 pm -
Nonstop1h 00m
Sat 9/1210:10 am -
Nonstop1h 10m
Deal found 8/13![Southwest logo]()
$231
This Frontier deal was found by Cheapflights users on 8/14. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/128:32 pm -
1 stop15h 35m
Mon 9/148:10 pm -
1 stop23h 27m
Deal found 8/14![Frontier logo]()
$210
This Southwest deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1211:05 am -
1 stop3h 15m
Sat 9/1910:15 am -
2 stops7h 55m
Deal found 8/13![Southwest logo]()
$241
This Southwest deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/178:10 pm -
Nonstop1h 25m
Fri 9/186:20 am -
Nonstop1h 25m
Deal found 8/12![Southwest logo]()
$248
This Kiwi.com deal was found by Cheapflights users on 8/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/188:32 pm -
1 stop22h 45m
Mon 9/288:10 pm -
1 stop23h 27m
Deal found 8/16![Frontier logo]()
$222
This Frontier deal was found by Cheapflights users on 8/16. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2410:30 pm -
1 stop12h 47m
Mon 9/2812:17 pm -
1 stop9h 28m
Deal found 8/16![Frontier logo]()
$218
This CheapOair deal was found by Cheapflights users on 8/16. 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.
Mon 9/2810:30 pm -
1 stop13h 02m
Wed 9/308:10 pm -
1 stop23h 27m
Deal found 8/16![Frontier logo]()
$219
One-way flights from Kansas City to IllinoisSearch for one-way flight options from Kansas City to Illinois. Find affordable one-way fares based on user searches. Data last updated August 17, 2026.
Search for one-way flight options from Kansas City to Illinois. Find affordable one-way fares based on user searches. Data last updated August 17, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” 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 9/108:32 pm -
1 stop22h 45m
Deal found 8/13![Frontier logo]()
$64
This Kiwi.com deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” 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.
Sat 9/55:00 pm -
1 stop24h 22m
Deal found 8/13![Frontier logo]()
$80
This Frontier deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1411:20 am -
1 stop7h 57m
Deal found 8/13![Frontier logo]()
$81
This Kiwi.com deal was found by Cheapflights users on 8/14. 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 11/112:17 pm -
1 stop28h 58m
Deal found 8/14![Frontier logo]()
$89
This Kiwi.com deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” 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 9/118:32 pm -
1 stop22h 45m
Deal found 8/13![Frontier logo]()
$92
This Kiwi.com deal was found by Cheapflights users on 8/14. 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 11/102:17 pm -
2 stops43h 23m
Deal found 8/14![Frontier logo]()
$97
This Southwest deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/52:25 pm -
Nonstop1h 00m
Deal found 8/13![Southwest logo]()
$98
This Kiwi.com deal was found by Cheapflights users on 8/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/182:17 pm -
1 stop28h 58m
Deal found 8/16![Frontier logo]()
$103
This Southwest deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/114:15 pm -
1 stop5h 55m
Deal found 8/12![Southwest logo]()
$108
This Kiwi.com deal was found by Cheapflights users on 8/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1810:30 pm -
2 stops25h 53m
Deal found 8/16![Frontier logo]()
$127
This CheapOair deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” 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.
Wed 9/211:26 am -
1 stop11h 21m
Deal found 8/13![Frontier logo]()
$127
This Kiwi.com deal was found by Cheapflights users on 8/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1410:30 pm -
2 stops25h 53m
Deal found 8/15![Frontier logo]()
$128
Find flight deals from Kansas City to Illinois
Keep the following information in mind while searching for Kansas City to Illinois flight deals. Data was last updated August 17, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $149 (Kiwi.com) |
One-way from | $64 (Kiwi.com) |
Popular in | July |
Cheapest in | November |
Average price | $369 |
Cheapflights Fare Finder
Customize your flight search to find flights from Kansas City 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 August 17, 2026.
Use the filters below to find and compare flights from Kansas City to Illinois that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Kansas CitySt. Louis
MCI Kansas City - STL Lambert-St Louis
MCISTL
Kansas City
Thu 9/24
10:30 pm-11:17 am
1 stop12h 47m
Lambert-St Louis
Mon 9/28
12:17 pm-9:45 pm
1 stop9h 28m
$218
Kansas CitySt. Louis
MCI Kansas City - STL Lambert-St Louis
MCISTL
Kansas City
Sat 9/5
3:10 pm-8:45 pm
1 stop5h 35m
Lambert-St Louis
Sun 9/6
11:40 am-12:45 pm
Nonstop1h 05m
$226
Kansas CitySt. Louis
MCI Kansas City - STL Lambert-St Louis
MCISTL
Kansas City
Sat 9/5
2:25 pm-3:25 pm
Nonstop1h 00m
Lambert-St Louis
Tue 9/8
5:20 pm-11:15 pm
1 stop5h 55m
$228
Kansas CitySt. Louis
MCI Kansas City - STL Lambert-St Louis
MCISTL
Kansas City
Fri 9/18
10:30 pm-7:17 pm
2 stops20h 47m
Lambert-St Louis
Mon 9/28
8:10 pm-7:37 pm
1 stop23h 27m
$233
Kansas CitySt. Louis
MCI Kansas City - STL Lambert-St Louis
MCISTL
Kansas City
Wed 9/9
8:20 am-9:25 am
Nonstop1h 05m
Lambert-St Louis
Wed 9/16
8:45 pm-9:55 pm
Nonstop1h 10m
$241
Quickest round-trip
Kansas CitySt. Louis
MCI Kansas City - STL Lambert-St Louis
MCISTL
Kansas City
Tue 9/8
11:55 am-12:55 pm
Nonstop1h 00m
Lambert-St Louis
Wed 9/9
8:25 am-9:30 am
Nonstop1h 05m
$253
Kansas CityChicago
MCI Kansas City - MDW Chicago Midway
MCIMDW
Kansas City
Tue 11/10
6:00 am-7:25 am
Nonstop1h 25m
Chicago Midway
Fri 11/13
5:20 pm-11:20 pm
2 stops6h 00m
$264
Kansas CityChicago
MCI Kansas City - ORD Chicago O'Hare Intl
MCIORD
Kansas City
Mon 9/21
6:45 pm-8:39 pm
Nonstop1h 54m
Chicago O'Hare Intl
Wed 9/23
5:55 pm-7:38 pm
Nonstop1h 43m
$268
Kansas CityChicago
MCI Kansas City - MDW Chicago Midway
MCIMDW
Kansas City
Thu 10/8
5:30 am-6:55 am
Nonstop1h 25m
Chicago Midway
Sat 10/10
8:25 am-9:55 am
Nonstop1h 30m
$277
Kansas CityMoline
MCI Kansas City - MLI Moline Quad-City
MCIMLI
Kansas City
Sat 9/12
7:35 pm-12:05 am
1 stop4h 30m
Moline Quad-City
Sat 9/19
6:00 am-9:44 am
1 stop3h 44m
$289
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Kansas City to Illinois
Have a flexible travel schedule? Discover the best time to fly to Illinois from Kansas City with our price prediction graph.
MCI-STL
MCI-ORD
MCI-MLI
MCI-MDW
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Kansas City to Illinois
MCI-USIL
MCI-STL
MCI-ORD
MCI-MLI
MCI-MDW
What is the cheapest month to book a flight from Kansas City to Illinois?
Currently, December is the cheapest month in which you can book a flight from Kansas City to Illinois (average of $293). Flying from Kansas City to Illinois in July is currently the most expensive (average of $433). 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 MCI to IL?
Find hourly flight availability from Kansas City 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 August 17, 2026.
One of the essential ways to save on airfare from Kansas City to Illinois is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the morning could potentially save you up to 28% on airfare.
Weekly flight availability from Kansas City to Illinois
Explore weekly flight availability from Kansas City 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 August 17, 2026.
The most flights from MCI to USIL are scheduled on a Saturday (57 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (37 on average).
How much does it cost to fly round-trip from Kansas City to Illinois?
Airfare is below average for this route at the moment.
Kansas City to Illinois flights typically cost between $303 and $399 in September.The cheapest round-trip price found within the last 5 days was $237 on Frontier (Sep 18-Sep 21).
How far ahead should I book a flight from Kansas City to Illinois?
The best time to book flights from Kansas City to Illinois is 63 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 Kansas City to Illinois?
Use this chart to determine the cheapest time to fly round-trip from Kansas City to Illinois. Price data was last updated on August 15, 2026.
Travelers seeking maximum savings on their Kansas City to Illinois flight should consider departing on Tuesday evenings when fares are most often at their lowest. Wednesday 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 August 17, 2026.
Read through reviews of airlines operating flights from Kansas City to Illinois, such as Southwest,United Airlines, andAmerican Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.5
Overall
8.0
Comfort
8.0
Crew
8.6
Food
7.0
Boarding
8.1
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Entertainment
7.5
Overall
8.0
Comfort
8.0
Crew
8.6
Food
7.0
Boarding
8.1
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Entertainment
7.5
Overall
8.0
Comfort
8.0
Crew
8.6
Food
7.0
Boarding
8.1
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Entertainment
7.5
Overall
8.0
Comfort
8.0
Crew
8.6
Food
7.0
Boarding
8.1
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Entertainment
7.5
Overall
8.0
Comfort
8.0
Crew
8.6
Food
7.0
Boarding
8.1
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Entertainment
7.5
Overall
8.0
Comfort
8.0
Crew
8.6
Food
7.0
Boarding
8.1
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Related info for your journey
Find useful and relevant information for your journey from Kansas City 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 Kansas City to Illinois
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Complete your trip
Complete your trip to Illinois by adding a car rental and/or hotel reservation to your travel itinerary.
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Find flights from Kansas City to Illinois, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Kansas City and Illinois flights
Browse other Kansas City and Illinois flight options. Last updated on August 17, 2026.
Popular flight searches
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Kansas City to Illinois flights
Consider these flights traveling from Kansas City to Illinois.
Top 4 airlines flying from Kansas City to Illinois
Discover the top 4 airlines that operate flights from Kansas City 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 August 17, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$158 | Average$182 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$207 | Average$450 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$219 | Average$525 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$245 | Average$442 | FlexibilityNo cancel fee | On-time63% |