$65+ 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 6/1. Fares are subject to change and may not be available on all flights or dates of travel.
MCI — ORD
Jun 5 — Jun 121
Round-trip
1 adult, Economy
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Find cheap flights from Kansas City to Illinois with Cheapflights
1. Tell us where you want to go
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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 May 6, 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 May 6, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/16:24 pm
MCI
- STL
1 stop23h 09m
Frontier
Sun 6/76:33 pm
STL
- MCI
1 stop22h 56m
Frontier
Deal found 5/3![Frontier logo]()
$126
This Kiwi.com deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/22:34 pm
MCI
- STL
1 stop28h 49m
Frontier
Tue 6/96:31 pm
STL
- MCI
1 stop22h 50m
Frontier
Deal found 5/5![Frontier logo]()
$158
This Kiwi.com deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/16:24 pm
MCI
- STL
1 stop23h 09m
Frontier
Thu 6/46:33 pm
STL
- MCI
1 stop22h 56m
Frontier
Deal found 5/1![Frontier logo]()
$162
This Kiwi.com deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/16:24 pm
MCI
- STL
1 stop23h 09m
Frontier
Mon 6/88:08 pm
STL
- MCI
1 stop16h 52m
Frontier
Deal found 5/2![Frontier logo]()
$183
This Kiwi.com deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/42:34 pm
MCI
- STL
2 stops18h 21m
Frontier
Thu 6/116:31 pm
STL
- MCI
1 stop22h 50m
Frontier
Deal found 5/5![Frontier logo]()
$201
This Kiwi.com deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/296:24 pm
MCI
- STL
1 stop14h 31m
Frontier
Fri 6/55:27 pm
STL
- MCI
1 stop24h 02m
Frontier
Deal found 5/1![Frontier logo]()
$207
This Kiwi.com deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/56:24 pm
MCI
- STL
1 stop14h 31m
Frontier
Mon 6/88:08 pm
STL
- MCI
1 stop16h 52m
Frontier
Deal found 5/5![Frontier logo]()
$216
This American Airlines deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/27:42 pm
MCI
- MLI
1 stop4h 32m
American Airlines
Tue 6/94:45 pm
MLI
- MCI
1 stop7h 40m
American Airlines
Deal found 5/5![American Airlines logo]()
$279
This Kiwi.com deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/66:24 pm
MCI
- ORD
1 stop13h 31m
Frontier
Mon 6/86:55 am
ORD
- MCI
1 stop10h 34m
Frontier
Deal found 5/3![Frontier logo]()
$289
This Frontier deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/22:34 pm
MCI
- ORD
1 stop5h 58m
Frontier
Wed 6/36:55 am
ORD
- MCI
1 stop10h 34m
Frontier
Deal found 5/3![Frontier logo]()
$290
This Priceline deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/132:34 pm
MCI
- ORD
1 stop5h 58m
Frontier
Fri 5/156:55 am
ORD
- MCI
1 stop10h 34m
Frontier
Deal found 5/1![Frontier logo]()
$291
This Southwest deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/92:05 pm
MCI
- MDW
1 stop2h 55m
Southwest
Wed 6/1012:05 pm
MDW
- MCI
Nonstop1h 25m
Southwest
Deal found 5/4![Southwest logo]()
$291
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 May 6, 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 May 6, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/16:24 pm
MCI
- STL
1 stop23h 09m
Frontier
Thu 6/46:33 pm
STL
- MCI
1 stop22h 56m
Frontier
Deal found 5/1![Frontier logo]()
$169
This American Airlines deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/27:42 pm
MCI
- MLI
1 stop4h 32m
American Airlines
Tue 6/94:45 pm
MLI
- MCI
1 stop7h 40m
American Airlines
Deal found 5/5![American Airlines logo]()
$279
This Southwest deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/32:10 pm
MCI
- MDW
1 stop3h 00m
Southwest
Thu 6/410:20 am
MDW
- MCI
1 stop2h 50m
Southwest
Deal found 5/1![Southwest logo]()
$313
This Delta deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/1612:39 pm
MCI
- MDW
1 stop5h 39m
Delta
Sat 6/209:54 am
MDW
- MCI
1 stop5h 20m
Delta
Deal found 5/4![Delta logo]()
$337
This United Airlines deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/177:53 am
MCI
- ORD
Nonstop1h 52m
United Airlines
Mon 7/206:55 am
ORD
- MCI
Nonstop1h 47m
United Airlines
Deal found 5/5![United Airlines logo]()
$349
This CheapOair deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/101:45 pm
MCI
- STL
1 stop5h 38m
Frontier
Thu 6/117:38 pm
STL
- MCI
1 stop17h 22m
Frontier
Deal found 5/4![Frontier logo]()
$220
This American Airlines deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/197:49 pm
MCI
- MLI
1 stop4h 05m
American Airlines
Sat 5/236:00 am
MLI
- MCI
1 stop7h 07m
American Airlines
Deal found 5/4![American Airlines logo]()
$309
This Southwest deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/247:15 am
MCI
- ORD
2 stops11h 35m
Southwest
Wed 5/272:00 pm
ORD
- MCI
1 stop7h 05m
Southwest
Deal found 5/4![Southwest logo]()
$322
This Delta deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/86:23 am
MCI
- ORD
1 stop5h 09m
Delta
Fri 7/108:27 am
ORD
- MCI
1 stop6h 47m
Delta
Deal found 5/5![Delta logo]()
$347
This United Airlines deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/195:10 pm
MCI
- ORD
Nonstop1h 53m
United Airlines
Mon 6/222:12 pm
ORD
- MCI
Nonstop1h 48m
United Airlines
Deal found 5/3![United Airlines logo]()
$349
This Southwest deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/285:05 am
MCI
- MDW
Nonstop1h 30m
Southwest
Wed 7/112:05 pm
MDW
- MCI
Nonstop1h 25m
Southwest
Deal found 5/5![Southwest logo]()
$327
This United Airlines deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/247:53 am
MCI
- ORD
Nonstop1h 52m
United Airlines
Sun 7/263:52 pm
ORD
- MCI
Nonstop1h 44m
United Airlines
Deal found 5/5![United Airlines logo]()
$349
This Southwest deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/145:05 am
MCI
- MDW
Nonstop1h 30m
Southwest
Tue 6/1610:00 am
MDW
- MCI
1 stop5h 15m
Southwest
Deal found 5/4![Southwest logo]()
$327
This United Airlines deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/23:16 pm
MCI
- ORD
Nonstop1h 49m
United Airlines
Mon 7/66:55 am
ORD
- MCI
Nonstop1h 47m
United Airlines
Deal found 5/2![United Airlines logo]()
$349
This Southwest deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/148:10 am
MCI
- MDW
Nonstop1h 25m
Southwest
Thu 7/169:45 pm
MDW
- MCI
Nonstop1h 30m
Southwest
Deal found 5/5![Southwest logo]()
$327
This United Airlines deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/27:53 am
MCI
- ORD
Nonstop1h 52m
United Airlines
Wed 6/312:40 pm
ORD
- MCI
Nonstop1h 40m
United Airlines
Deal found 5/1![United Airlines logo]()
$355
This Southwest deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/13:20 pm
MCI
- MDW
Nonstop1h 25m
Southwest
Mon 6/85:00 am
MDW
- MCI
1 stop5h 10m
Southwest
Deal found 5/2![Southwest logo]()
$329
This Southwest deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/66:00 pm
MCI
- MDW
Nonstop1h 25m
Southwest
Mon 6/86:00 pm
MDW
- MCI
1 stop4h 50m
Southwest
Deal found 5/4![Southwest logo]()
$329
This United Airlines deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/246:48 pm
MCI
- ORD
Nonstop1h 52m
United Airlines
Thu 5/287:05 am
ORD
- MCI
Nonstop2h 02m
United Airlines
Deal found 5/4![United Airlines logo]()
$379
This American Airlines deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/255:31 am
MCI
- MLI
1 stop5h 08m
American Airlines
Thu 6/254:45 pm
MLI
- MCI
1 stop5h 14m
American Airlines
Deal found 5/4![American Airlines logo]()
$519
This Southwest deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/222:05 pm
MCI
- MDW
1 stop2h 55m
Southwest
Sun 7/268:35 pm
MDW
- MCI
Nonstop1h 30m
Southwest
Deal found 5/2![Southwest logo]()
$335
This United Airlines deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/196:17 am
MCI
- MLI
1 stop3h 47m
United Airlines
Sat 5/233:47 pm
MLI
- MCI
1 stop4h 00m
United Airlines
Deal found 5/4![United Airlines logo]()
$379
This Southwest deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/265:55 pm
MCI
- MDW
Nonstop1h 25m
Southwest
Sun 8/3010:25 am
MDW
- MCI
1 stop5h 15m
Southwest
Deal found 5/5![Southwest logo]()
$337
This Southwest deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/112:05 pm
MCI
- STL
Nonstop1h 05m
Southwest
Thu 6/49:45 pm
STL
- MCI
Nonstop1h 05m
Southwest
Deal found 5/1![Southwest logo]()
$337
This Southwest deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2812:05 pm
MCI
- STL
Nonstop1h 05m
Southwest
Mon 6/18:30 am
STL
- MCI
Nonstop1h 10m
Southwest
Deal found 5/5![Southwest logo]()
$337
This United Airlines deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/166:17 am
MCI
- MLI
1 stop3h 47m
United Airlines
Wed 5/2011:57 am
MLI
- MCI
1 stop5h 23m
United Airlines
Deal found 5/1![United Airlines logo]()
$484
This Southwest deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/306:55 am
MCI
- STL
Nonstop1h 05m
Southwest
Sat 6/64:20 pm
STL
- MCI
Nonstop1h 05m
Southwest
Deal found 5/2![Southwest logo]()
$337
This Southwest deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/285:15 am
MCI
- ORD
2 stops8h 00m
Southwest
Mon 6/13:45 pm
ORD
- MCI
1 stop7h 40m
Southwest
Deal found 5/3![Southwest logo]()
$339
This United Airlines deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/26:00 am
MCI
- MLI
2 stops15h 22m
United Airlines
Tue 6/96:30 pm
MLI
- MCI
1 stop4h 43m
United Airlines
Deal found 5/5![United Airlines logo]()
$497
This Southwest deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/27:45 am
MCI
- STL
1 stop5h 15m
Southwest
Thu 6/49:45 pm
STL
- MCI
Nonstop1h 05m
Southwest
Deal found 5/5![Southwest logo]()
$345
Last-minute flights from Kansas City to IllinoisDiscover last-minute flight deals from Kansas City to Illinois. Data last updated May 6, 2026 and is based on user searches.
Discover last-minute flight deals from Kansas City to Illinois. Data last updated May 6, 2026 and is based on user searches.
This Priceline deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/132:34 pm
MCI
- ORD
1 stop5h 58m
Frontier
Fri 5/156:55 am
ORD
- MCI
1 stop10h 34m
Frontier
Deal found 5/1![Frontier logo]()
$291
This Kiwi.com deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/296:24 pm
MCI
- STL
1 stop14h 31m
Frontier
Fri 6/55:27 pm
STL
- MCI
1 stop24h 02m
Frontier
Deal found 5/1![Frontier logo]()
$207
This Kiwi.com deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/16:24 pm
MCI
- STL
1 stop23h 09m
Frontier
Sun 6/76:33 pm
STL
- MCI
1 stop22h 56m
Frontier
Deal found 5/3![Frontier logo]()
$126
This Kiwi.com deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/16:24 pm
MCI
- STL
1 stop23h 09m
Frontier
Thu 6/46:33 pm
STL
- MCI
1 stop22h 56m
Frontier
Deal found 5/1![Frontier logo]()
$162
This Kiwi.com deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/16:24 pm
MCI
- STL
1 stop23h 09m
Frontier
Mon 6/88:08 pm
STL
- MCI
1 stop16h 52m
Frontier
Deal found 5/2![Frontier logo]()
$183
This Kiwi.com deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/22:34 pm
MCI
- STL
1 stop28h 49m
Frontier
Tue 6/96:31 pm
STL
- MCI
1 stop22h 50m
Frontier
Deal found 5/5![Frontier logo]()
$158
This American Airlines deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/27:42 pm
MCI
- MLI
1 stop4h 32m
American Airlines
Tue 6/94:45 pm
MLI
- MCI
1 stop7h 40m
American Airlines
Deal found 5/5![American Airlines logo]()
$279
This Frontier deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/22:34 pm
MCI
- ORD
1 stop5h 58m
Frontier
Wed 6/36:55 am
ORD
- MCI
1 stop10h 34m
Frontier
Deal found 5/3![Frontier logo]()
$290
This Kiwi.com deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/42:34 pm
MCI
- STL
2 stops18h 21m
Frontier
Thu 6/116:31 pm
STL
- MCI
1 stop22h 50m
Frontier
Deal found 5/5![Frontier logo]()
$201
This Kiwi.com deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/56:24 pm
MCI
- STL
1 stop14h 31m
Frontier
Mon 6/88:08 pm
STL
- MCI
1 stop16h 52m
Frontier
Deal found 5/5![Frontier logo]()
$216
This Kiwi.com deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/66:24 pm
MCI
- ORD
1 stop13h 31m
Frontier
Mon 6/86:55 am
ORD
- MCI
1 stop10h 34m
Frontier
Deal found 5/3![Frontier logo]()
$289
This Southwest deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/92:05 pm
MCI
- MDW
1 stop2h 55m
Southwest
Wed 6/1012:05 pm
MDW
- MCI
Nonstop1h 25m
Southwest
Deal found 5/4![Southwest logo]()
$291
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 May 6, 2026.
Search for one-way flight options from Kansas City to Illinois. Find affordable one-way fares based on user searches. Data last updated May 6, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/16:24 pm
MCI
- STL
1 stop23h 09m
Frontier
Deal found 5/5![Frontier logo]()
$65
This Kiwi.com deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/22:34 pm
MCI
- STL
1 stop28h 49m
Frontier
Deal found 5/5![Frontier logo]()
$83
This Frontier deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/281:45 pm
MCI
- STL
1 stop5h 38m
Frontier
Deal found 5/5![Frontier logo]()
$95
This Delta deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/411:20 am
MCI
- STL
1 stop6h 47m
Delta
Deal found 5/5![Delta logo]()
$113
This Frontier deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/301:45 pm
MCI
- STL
1 stop5h 38m
Frontier
Deal found 5/5![Frontier logo]()
$115
This Kiwi.com deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/276:24 pm
MCI
- STL
1 stop23h 09m
Frontier
Deal found 5/2![Frontier logo]()
$116
This Delta deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/193:51 pm
MCI
- STL
1 stop17h 17m
Delta
Deal found 5/5![Delta logo]()
$118
This Kiwi.com deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/22:34 pm
MCI
- MDW
2 stops20h 35m
Frontier
Deal found 5/3![Frontier logo]()
$128
This Kiwi.com deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/161:45 pm
MCI
- ORD
1 stop6h 58m
Frontier
Deal found 5/5![Frontier logo]()
$129
This Kiwi.com deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/256:16 pm
MCI
- STL
1 stop23h 21m
Frontier
Deal found 5/3![Frontier logo]()
$130
This Kiwi.com deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/22:34 pm
MCI
- ORD
2 stops28h 55m
Frontier
Deal found 5/3![Frontier logo]()
$131
This Kiwi.com deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/316:16 pm
MCI
- STL
1 stop14h 41m
Frontier
Deal found 5/5![Frontier logo]()
$134
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 May 6, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $126 (Kiwi.com) |
One-way from | $65 (Kiwi.com) |
Popular in | May |
Cheapest in | September |
Average price | $345 |
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 May 6, 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 - STL
MCISTL
Kansas City
Mon 6/1
6:24 pm-5:33 pm
1 stop23h 09m
Lambert-St Louis
Thu 6/4
6:33 pm-5:29 pm
1 stop22h 56m
$169
Kansas CitySt. Louis
MCI - STL
MCISTL
Kansas City
Wed 6/10
1:45 pm-7:23 pm
1 stop5h 38m
Lambert-St Louis
Thu 6/11
7:38 pm-1:00 pm
1 stop17h 22m
$220
Kansas CityMoline
MCI - MLI
MCIMLI
Kansas City
Tue 6/2
7:42 pm-12:14 am
1 stop4h 32m
Moline Quad-City
Tue 6/9
4:45 pm-12:25 am
1 stop7h 40m
$279
Kansas CityMoline
MCI - MLI
MCIMLI
Kansas City
Tue 5/19
7:49 pm-11:54 pm
1 stop4h 05m
Moline Quad-City
Sat 5/23
6:00 am-1:07 pm
1 stop7h 07m
$309
Kansas CityChicago
MCI - MDW
MCIMDW
Kansas City
Wed 6/3
2:10 pm-5:10 pm
1 stop3h 00m
Chicago Midway
Thu 6/4
10:20 am-1:10 pm
1 stop2h 50m
$313
Kansas CityChicago
MCI - ORD
MCIORD
Kansas City
Sun 5/24
7:15 am-6:50 pm
2 stops11h 35m
Chicago O'Hare Intl
Wed 5/27
2:00 pm-9:05 pm
1 stop7h 05m
$322
Kansas CityChicago
MCI - MDW
MCIMDW
Kansas City
Sun 6/28
5:05 am-6:35 am
Nonstop1h 30m
Chicago Midway
Wed 7/1
12:05 pm-1:30 pm
Nonstop1h 25m
$327
Kansas CityChicago
MCI - MDW
MCIMDW
Kansas City
Sun 6/14
5:05 am-6:35 am
Nonstop1h 30m
Chicago Midway
Tue 6/16
10:00 am-3:15 pm
1 stop5h 15m
$327
Kansas CityChicago
MCI - MDW
MCIMDW
Kansas City
Tue 7/14
8:10 am-9:35 am
Nonstop1h 25m
Chicago Midway
Thu 7/16
9:45 pm-11:15 pm
Nonstop1h 30m
$327
Kansas CityChicago
MCI - MDW
MCIMDW
Kansas City
Mon 6/1
3:20 pm-4:45 pm
Nonstop1h 25m
Chicago Midway
Mon 6/8
5:00 am-10:10 am
1 stop5h 10m
$329
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-MLI
MCI-ORD
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-MLI
MCI-ORD
MCI-MDW
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 74 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 month to book a flight from Kansas City to Illinois?
Currently, June is the cheapest month in which you can book a flight from Kansas City to Illinois (average of $77). Flying from Kansas City to Illinois in December is currently the most expensive (average of $165). 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 May 6, 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 26% on airfare.
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 May 2, 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. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
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 May 6, 2026.
The most flights from MCI to USIL are scheduled on a Monday (66 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (28 on average).
How much does it cost to fly round-trip from Kansas City to Illinois?
Reviews of airlines servicing Illinois
Get insights into the airlines that provide service to Illinois. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Illinois. Reviews last updated May 6, 2026.
Read through reviews of airlines operating flights from 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.
Crew
8.6
Boarding
8.1
Food
7.0
Overall
7.9
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Crew
8.6
Boarding
8.1
Food
7.0
Overall
7.9
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Crew
8.6
Boarding
8.1
Food
7.0
Overall
7.9
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Crew
8.6
Boarding
8.1
Food
7.0
Overall
7.9
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Crew
8.6
Boarding
8.1
Food
7.0
Overall
7.9
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
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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Kansas City and Illinois flights
Browse other Kansas City and Illinois flight options. Last updated on May 6, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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 May 6, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$158 | Average$182 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$176 | Average$331 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$188 | Average$508 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$223 | Average$401 | FlexibilityNo cancel fee | On-time63% |