$46+ Cheap flights from Illinois to Wisconsin
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 2/28. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — MKE
Mar 5 — Mar 121
1 adult, Economy
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Find cheap flights from Illinois to Wisconsin with Cheapflights
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Cheapest flights from Illinois to WisconsinExplore the most affordable flight options available from Illinois to Wisconsin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 3, 2026.
Explore the most affordable flight options available from Illinois to Wisconsin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 3, 2026.
This Kiwi.com deal was found by Cheapflights users on 2/3. 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 3/33:49 pm
STL
- ORD
1 stop24h 03m
Frontier
Tue 3/107:41 pm
ORD
- STL
1 stop14h 56m
Frontier
Deal found 2/3![Frontier logo]()
$118
This Frontier deal was found by Cheapflights users on 1/31. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/212:51 pm
STL
- MSP
1 stop9h 06m
Frontier
Wed 2/2510:45 am
MSP
- STL
1 stop5h 08m
Frontier
Deal found 1/31![Frontier logo]()
$128
This Kiwi.com deal was found by Cheapflights users on 2/1. 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.
Sun 3/86:45 am
ORD
- MSP
Nonstop1h 43m
Sun Country Air
Sat 3/147:18 pm
MSP
- ORD
Nonstop1h 32m
Sun Country Air
Deal found 2/1![Sun Country Air logo]()
$136
This Cheapflightsfares deal was found by Cheapflights users on 2/1. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/247:35 pm
ORD
- MSP
Nonstop1h 42m
Sun Country Air
Sun 4/264:12 pm
MSP
- ORD
Nonstop1h 36m
Sun Country Air
Deal found 2/1![Sun Country Air logo]()
$138
This American Airlines deal was found by Cheapflights users on 1/31. 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.
Mon 3/910:40 pm
ORD
- MSP
Nonstop1h 33m
American Airlines
Sat 3/146:27 pm
MSP
- ORD
Nonstop1h 45m
American Airlines
Deal found 1/31![American Airlines logo]()
$141
This Southwest deal was found by Cheapflights users on 2/1. 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.
Tue 5/129:05 pm
MDW
- MSP
Nonstop1h 30m
Southwest
Thu 5/145:20 am
MSP
- MDW
Nonstop1h 30m
Southwest
Deal found 2/1![Southwest logo]()
$144
This Kiwi.com deal was found by Cheapflights users on 2/1. 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.
Thu 4/26:25 pm
ORD
- MSP
Nonstop1h 43m
Sun Country Air
Sun 4/55:42 pm
MSP
- ORD
Nonstop1h 32m
Sun Country Air
Deal found 2/1![Sun Country Air logo]()
$146
This Sun Country Air deal was found by Cheapflights users on 2/2. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/97:05 pm
ORD
- MSP
Nonstop1h 42m
Sun Country Air
Mon 4/139:12 am
MSP
- ORD
Nonstop1h 37m
Sun Country Air
Deal found 2/2![Sun Country Air logo]()
$148
This Trip.com deal was found by Cheapflights users on 2/2. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/75:11 am
ORD
- MSP
1 stop7h 44m
Multiple Airlines
Mon 5/115:30 pm
MSP
- ORD
Nonstop1h 36m
Multiple Airlines
Deal found 2/2![Multiple Airlines logo]()
$153
This Frontier deal was found by Cheapflights users on 2/2. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/212:51 pm
STL
- MSP
1 stop9h 06m
Frontier
Mon 2/236:45 am
MSP
- STL
1 stop6h 24m
Frontier
Deal found 2/2![Frontier logo]()
$154
This Priceline deal was found by Cheapflights users on 2/2. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/235:11 am
ORD
- MSP
1 stop7h 44m
Multiple Airlines
Sun 4/264:12 pm
MSP
- ORD
Nonstop1h 36m
Multiple Airlines
Deal found 2/2![Multiple Airlines logo]()
$154
This Southwest deal was found by Cheapflights users on 2/2. 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.
Fri 4/37:40 am
MDW
- MSP
Nonstop1h 30m
Southwest
Tue 4/75:20 am
MSP
- MDW
Nonstop1h 30m
Southwest
Deal found 2/2![Southwest logo]()
$154
Best flights from Illinois to WisconsinDiscover carefully curated flight deals from Illinois to Wisconsin that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 3, 2026.
Discover carefully curated flight deals from Illinois to Wisconsin that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 3, 2026.
This Sun Country Air deal was found by Cheapflights users on 2/2. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/97:05 pm
ORD
- MSP
Nonstop1h 42m
Sun Country Air
Mon 4/139:12 am
MSP
- ORD
Nonstop1h 37m
Sun Country Air
Deal found 2/2![Sun Country Air logo]()
$148
This Delta deal was found by Cheapflights users on 2/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/225:35 pm
STL
- MSP
Nonstop1h 34m
Delta
Thu 4/3010:00 am
MSP
- STL
Nonstop1h 32m
Delta
Deal found 2/1![Delta logo]()
$171
This Southwest deal was found by Cheapflights users on 2/2. 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.
Fri 4/109:30 pm
MDW
- MSP
Nonstop1h 30m
Southwest
Sat 4/115:15 am
MSP
- MDW
Nonstop1h 30m
Southwest
Deal found 2/2![Southwest logo]()
$175
This American Airlines deal was found by Cheapflights users on 2/2. 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 3/206:40 pm
ORD
- GRB
Nonstop1h 02m
American Airlines
Tue 3/246:38 pm
GRB
- ORD
Nonstop1h 21m
American Airlines
Deal found 2/2![American Airlines logo]()
$179
This United Airlines deal was found by Cheapflights users on 2/1. 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 5/68:10 pm
MLI
- ORD
Nonstop1h 18m
United Airlines
Mon 5/1110:45 pm
ORD
- MLI
Nonstop1h 14m
United Airlines
Deal found 2/1![United Airlines logo]()
$179
This Kiwi.com deal was found by Cheapflights users on 2/3. 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 3/78:12 pm
STL
- ORD
1 stop12h 31m
Multiple Airlines
Sun 3/157:17 am
ORD
- STL
2 stops30h 17m
Multiple Airlines
Deal found 2/3![Multiple Airlines logo]()
$225
This Kiwi.com deal was found by Cheapflights users on 2/3. 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 3/78:12 pm
STL
- ORD
1 stop12h 31m
Frontier
Sat 3/147:39 pm
ORD
- STL
2 stops38h 10m
Frontier
Deal found 2/3![Frontier logo]()
$236
This Delta deal was found by Cheapflights users on 2/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/96:29 am
STL
- MSP
Nonstop1h 38m
Delta
Mon 4/139:39 pm
MSP
- STL
Nonstop1h 35m
Delta
Deal found 2/1![Delta logo]()
$171
This Sun Country Air deal was found by Cheapflights users on 2/1. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/318:19 pm
ORD
- MSP
Nonstop1h 43m
Sun Country Air
Sun 8/93:35 pm
MSP
- ORD
Nonstop1h 49m
Sun Country Air
Deal found 2/1![Sun Country Air logo]()
$178
This United Airlines deal was found by Cheapflights users on 2/2. 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.
Sat 6/66:29 pm
MLI
- ORD
Nonstop1h 21m
United Airlines
Wed 6/1010:45 pm
ORD
- MLI
Nonstop1h 14m
United Airlines
Deal found 2/2![United Airlines logo]()
$179
This American Airlines deal was found by Cheapflights users on 2/1. 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 5/276:00 am
MLI
- ORD
Nonstop1h 20m
American Airlines
Thu 6/410:25 pm
ORD
- MLI
Nonstop1h 08m
American Airlines
Deal found 2/1![American Airlines logo]()
$179
This Delta deal was found by Cheapflights users on 2/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/98:55 am
ORD
- MSP
Nonstop1h 35m
Delta
Sat 4/114:10 pm
MSP
- ORD
Nonstop1h 43m
Delta
Deal found 2/1![Delta logo]()
$171
This Southwest deal was found by Cheapflights users on 2/1. 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 5/63:55 pm
STL
- MSP
1 stop5h 30m
Southwest
Sat 5/92:50 pm
MSP
- STL
1 stop6h 25m
Southwest
Deal found 2/1![Southwest logo]()
$191
This American Airlines deal was found by Cheapflights users on 2/1. 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 4/37:09 pm
MLI
- ORD
Nonstop1h 18m
American Airlines
Tue 4/74:54 pm
ORD
- MLI
Nonstop1h 16m
American Airlines
Deal found 2/1![American Airlines logo]()
$179
This United Airlines deal was found by Cheapflights users on 2/1. 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 3/137:22 pm
MLI
- ORD
Nonstop1h 13m
United Airlines
Sun 3/158:55 am
ORD
- MLI
Nonstop1h 14m
United Airlines
Deal found 2/1![United Airlines logo]()
$179
This Southwest deal was found by Cheapflights users on 2/1. 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.
Fri 3/277:40 am
MDW
- MSP
Nonstop1h 30m
Southwest
Wed 4/17:25 am
MSP
- MDW
1 stop4h 15m
Southwest
Deal found 2/1![Southwest logo]()
$191
This Delta deal was found by Cheapflights users on 2/2. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/147:09 pm
ORD
- MSP
Nonstop1h 37m
Delta
Thu 4/164:55 pm
MSP
- ORD
1 stop3h 45m
Delta
Deal found 2/2![Delta logo]()
$179
This American Airlines deal was found by Cheapflights users on 2/1. 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 2/268:04 pm
MLI
- ORD
Nonstop1h 18m
American Airlines
Sun 3/15:29 pm
ORD
- MLI
Nonstop1h 03m
American Airlines
Deal found 2/1![American Airlines logo]()
$179
This United Airlines deal was found by Cheapflights users on 1/31. 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.
Fri 3/277:40 pm
ORD
- MKE
Nonstop1h 05m
United Airlines
Sat 4/47:22 pm
MKE
- ORD
Nonstop1h 09m
United Airlines
Deal found 1/31![United Airlines logo]()
$182
This American Airlines deal was found by Cheapflights users on 2/1. 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 3/58:04 pm
MLI
- ORD
Nonstop1h 18m
American Airlines
Sun 3/810:35 pm
ORD
- MLI
Nonstop1h 02m
American Airlines
Deal found 2/1![American Airlines logo]()
$179
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 3/23:50 pm
ORD
- MKE
1 stop23h 54m
Multiple Airlines
Mon 3/912:36 pm
MKE
- ORD
1 stop29h 10m
Multiple Airlines
Deal found 2/2![Multiple Airlines logo]()
$240
This Delta deal was found by Cheapflights users on 2/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/18:30 pm
ORD
- MSP
Nonstop1h 39m
Delta
Mon 4/67:50 pm
MSP
- ORD
Nonstop1h 36m
Delta
Deal found 2/1![Delta logo]()
$181
This Kiwi.com deal was found by Cheapflights users on 2/1. 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.
Wed 3/118:12 pm
STL
- MSP
1 stop27h 45m
Frontier
Mon 3/1610:20 pm
MSP
- STL
1 stop13h 55m
Frontier
Deal found 2/1![Frontier logo]()
$242
This Southwest deal was found by Cheapflights users on 2/2. 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.
Tue 4/142:40 pm
ORD
- MSP
1 stop8h 25m
Southwest
Thu 4/166:30 am
MSP
- ORD
1 stop8h 30m
Southwest
Deal found 2/2![Southwest logo]()
$202
This United Airlines deal was found by Cheapflights users on 2/1. 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 6/103:40 pm
ORD
- DLH
Nonstop1h 54m
United Airlines
Wed 6/177:45 am
DLH
- ORD
Nonstop1h 57m
United Airlines
Deal found 2/1![United Airlines logo]()
$191
This American Airlines deal was found by Cheapflights users on 2/1. 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.
Sat 2/286:05 pm
ORD
- MKE
Nonstop0h 56m
American Airlines
Sun 3/16:00 am
MKE
- ORD
Nonstop1h 11m
American Airlines
Deal found 2/1![American Airlines logo]()
$181
This Delta deal was found by Cheapflights users on 2/2. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/68:30 pm
ORD
- MSP
Nonstop1h 39m
Delta
Thu 4/97:00 am
MSP
- ORD
Nonstop1h 40m
Delta
Deal found 2/2![Delta logo]()
$181
This Kiwi.com deal was found by Cheapflights users on 2/2. 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.
Thu 2/2610:11 pm
STL
- MSP
2 stops10h 54m
Frontier
Fri 2/279:10 pm
MSP
- STL
1 stop16h 46m
Frontier
Deal found 2/2![Frontier logo]()
$244
This Southwest deal was found by Cheapflights users on 2/2. 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 4/17:55 am
MDW
- MSP
Nonstop1h 35m
Southwest
Sun 4/510:35 am
MSP
- MDW
Nonstop1h 30m
Southwest
Deal found 2/2![Southwest logo]()
$205
This United Airlines deal was found by Cheapflights users on 2/1. 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 3/138:45 am
ORD
- MSP
Nonstop1h 38m
United Airlines
Mon 3/165:14 pm
MSP
- ORD
Nonstop1h 41m
United Airlines
Deal found 2/1![United Airlines logo]()
$191
Last-minute flights from Illinois to WisconsinDiscover last-minute flight deals from Illinois to Wisconsin. Data last updated February 3, 2026 and is based on user searches.
Discover last-minute flight deals from Illinois to Wisconsin. Data last updated February 3, 2026 and is based on user searches.
This Expedia deal was found by Cheapflights users on 2/1. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/1911:41 am
ORD
- MSP
1 stop7h 46m
Frontier
Mon 2/2310:00 am
MSP
- ORD
1 stop12h 30m
Frontier
Deal found 2/1![Frontier logo]()
$175
This Cheapflightsfares deal was found by Cheapflights users on 2/2. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/206:00 pm
STL
- MSP
Nonstop1h 35m
Sun Country Air
Sat 2/211:30 pm
MSP
- STL
Nonstop1h 31m
Sun Country Air
Deal found 2/2![Sun Country Air logo]()
$158
This Kiwi.com deal was found by Cheapflights users on 2/2. 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.
Fri 2/208:20 pm
STL
- ORD
1 stop14h 26m
Multiple Airlines
Mon 2/236:51 pm
ORD
- STL
2 stops36h 00m
Multiple Airlines
Deal found 2/2![Multiple Airlines logo]()
$169
This Frontier deal was found by Cheapflights users on 1/31. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/212:51 pm
STL
- MSP
1 stop9h 06m
Frontier
Wed 2/2510:45 am
MSP
- STL
1 stop5h 08m
Frontier
Deal found 1/31![Frontier logo]()
$128
This Frontier deal was found by Cheapflights users on 2/2. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/212:51 pm
STL
- MSP
1 stop9h 06m
Frontier
Mon 2/236:45 am
MSP
- STL
1 stop6h 24m
Frontier
Deal found 2/2![Frontier logo]()
$154
This Kiwi.com deal was found by Cheapflights users on 2/3. 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 3/33:49 pm
STL
- ORD
1 stop24h 03m
Frontier
Tue 3/107:41 pm
ORD
- STL
1 stop14h 56m
Frontier
Deal found 2/3![Frontier logo]()
$118
This Kiwi.com deal was found by Cheapflights users on 2/2. 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.
Fri 3/61:09 pm
STL
- ORD
1 stop9h 30m
Frontier
Fri 3/135:01 am
ORD
- STL
1 stop8h 33m
Frontier
Deal found 2/2![Frontier logo]()
$165
This Kiwi.com deal was found by Cheapflights users on 2/1. 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.
Sun 3/86:45 am
ORD
- MSP
Nonstop1h 43m
Sun Country Air
Sat 3/147:18 pm
MSP
- ORD
Nonstop1h 32m
Sun Country Air
Deal found 2/1![Sun Country Air logo]()
$136
This American Airlines deal was found by Cheapflights users on 1/31. 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.
Mon 3/910:40 pm
ORD
- MSP
Nonstop1h 33m
American Airlines
Sat 3/146:27 pm
MSP
- ORD
Nonstop1h 45m
American Airlines
Deal found 1/31![American Airlines logo]()
$141
This Priceline deal was found by Cheapflights users on 2/2. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/95:25 am
ORD
- MSP
1 stop7h 23m
Multiple Airlines
Sat 3/147:18 pm
MSP
- ORD
Nonstop1h 32m
Multiple Airlines
Deal found 2/2![Multiple Airlines logo]()
$173
This American Airlines deal was found by Cheapflights users on 2/2. 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 3/206:40 pm
ORD
- GRB
Nonstop1h 02m
American Airlines
Tue 3/246:38 pm
GRB
- ORD
Nonstop1h 21m
American Airlines
Deal found 2/2![American Airlines logo]()
$179
This Southwest deal was found by Cheapflights users on 1/31. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/287:40 am
MDW
- MSP
Nonstop1h 30m
Southwest
Mon 3/304:25 pm
MSP
- MDW
Nonstop1h 30m
Southwest
Deal found 1/31![Southwest logo]()
$175
One-way flights from Illinois to WisconsinSearch for one-way flight options from Illinois to Wisconsin. Find affordable one-way fares based on user searches. Data last updated February 3, 2026.
Search for one-way flight options from Illinois to Wisconsin. Find affordable one-way fares based on user searches. Data last updated February 3, 2026.
This United Airlines deal was found by Cheapflights users on 2/1. 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 2/287:41 am
STL
- ORD
Nonstop1h 29m
United Airlines
Deal found 2/1![United Airlines logo]()
$46
This Southwest deal was found by Cheapflights users on 2/1. 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.
Sat 4/256:10 am
STL
- ORD
1 stop5h 20m
Southwest
Deal found 2/1![Southwest logo]()
$50
This Southwest deal was found by Cheapflights users on 2/2. 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 4/18:25 am
STL
- MSP
Nonstop1h 30m
Southwest
Deal found 2/2![Southwest logo]()
$59
This United Airlines deal was found by Cheapflights users on 2/3. 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 4/219:10 am
STL
- ORD
Nonstop1h 29m
United Airlines
Deal found 2/3![United Airlines logo]()
$59
This Kiwi.com deal was found by Cheapflights users on 2/1. 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.
Tue 3/33:49 pm
STL
- ORD
1 stop24h 03m
Frontier
Deal found 2/1![Frontier logo]()
$60
This Kiwi.com deal was found by Cheapflights users on 2/1. 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.
Sun 3/227:30 am
ORD
- MSP
Nonstop1h 43m
Sun Country Air
Deal found 2/1![Sun Country Air logo]()
$67
This Cheapflightsfares deal was found by Cheapflights users on 1/31. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/206:00 pm
STL
- MSP
Nonstop1h 35m
Sun Country Air
Deal found 1/31![Sun Country Air logo]()
$69
This Sun Country Air deal was found by Cheapflights users on 2/1. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/148:06 pm
ORD
- MSP
Nonstop1h 42m
Sun Country Air
Deal found 2/1![Sun Country Air logo]()
$69
This Southwest deal was found by Cheapflights users on 2/2. 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 4/84:40 pm
MDW
- MSP
1 stop5h 50m
Southwest
Deal found 2/2![Southwest logo]()
$69
This Southwest deal was found by Cheapflights users on 2/3. 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.
Tue 4/76:35 am
STL
- ORD
1 stop8h 25m
Southwest
Deal found 2/3![Southwest logo]()
$69
This Priceline deal was found by Cheapflights users on 1/31. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/212:51 pm
STL
- MSP
1 stop9h 06m
Frontier
Deal found 1/31![Frontier logo]()
$70
This Booking.com deal was found by Cheapflights users on 2/2. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/136:31 pm
ORD
- MSP
Nonstop1h 46m
Sun Country Air
Deal found 2/2![Sun Country Air logo]()
$70
Find flight deals from Illinois to Wisconsin
Keep the following information in mind while searching for Illinois to Wisconsin flight deals. Data was last updated February 3, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $118 (Kiwi.com) |
One-way from | $46 (United Airlines) |
Good round-trip deal | $254 or less |
Good one-way deal | $150 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Illinois to Wisconsin 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 February 3, 2026.
Use the filters below to find and compare flights from Illinois to Wisconsin that are best for you.
Fly from
Illinois
Fly to
Wisconsin
Route
Depart
Return
Price
ChicagoMinneapolis
ORD - MSP
ORDMSP
Chicago O'Hare Intl
Thu 4/9
7:05 pm-8:47 pm
Nonstop1h 42m
Minneapolis St Paul
Mon 4/13
9:12 am-10:49 am
Nonstop1h 37m
$148
St. LouisMinneapolis
STL - MSP
STLMSP
Lambert-St Louis
Wed 4/22
5:35 pm-7:09 pm
Nonstop1h 34m
Minneapolis St Paul
Thu 4/30
10:00 am-11:32 am
Nonstop1h 32m
$171
St. LouisMinneapolis
STL - MSP
STLMSP
Lambert-St Louis
Thu 4/9
6:29 am-8:07 am
Nonstop1h 38m
Minneapolis St Paul
Mon 4/13
9:39 pm-11:14 pm
Nonstop1h 35m
$171
ChicagoMinneapolis
ORD - MSP
ORDMSP
Chicago O'Hare Intl
Thu 4/9
8:55 am-10:30 am
Nonstop1h 35m
Minneapolis St Paul
Sat 4/11
4:10 pm-5:53 pm
Nonstop1h 43m
$171
ChicagoMinneapolis
MDW - MSP
MDWMSP
Chicago Midway
Fri 4/10
9:30 pm-11:00 pm
Nonstop1h 30m
Minneapolis St Paul
Sat 4/11
5:15 am-6:45 am
Nonstop1h 30m
$175
ChicagoMinneapolis
ORD - MSP
ORDMSP
Chicago O'Hare Intl
Fri 7/31
8:19 pm-10:02 pm
Nonstop1h 43m
Minneapolis St Paul
Sun 8/9
3:35 pm-5:24 pm
Nonstop1h 49m
$178
ChicagoGreen Bay
ORD - GRB
ORDGRB
Chicago O'Hare Intl
Fri 3/20
6:40 pm-7:42 pm
Nonstop1h 02m
Green Bay Austin-Straubel
Tue 3/24
6:38 pm-7:59 pm
Nonstop1h 21m
$179
MolineChicago
MLI - ORD
MLIORD
Moline Quad-City
Wed 5/6
8:10 pm-9:28 pm
Nonstop1h 18m
Chicago O'Hare Intl
Mon 5/11
10:45 pm-11:59 pm
Nonstop1h 14m
$179
MolineChicago
MLI - ORD
MLIORD
Moline Quad-City
Sat 6/6
6:29 pm-7:50 pm
Nonstop1h 21m
Chicago O'Hare Intl
Wed 6/10
10:45 pm-11:59 pm
Nonstop1h 14m
$179
MolineChicago
MLI - ORD
MLIORD
Moline Quad-City
Wed 5/27
6:00 am-7:20 am
Nonstop1h 20m
Chicago O'Hare Intl
Thu 6/4
10:25 pm-11:33 pm
Nonstop1h 08m
$179
Showing 1-10 of 60 results
Best time to book a flight from Illinois to Wisconsin
Have a flexible travel schedule? Discover the best time to fly to Wisconsin from Illinois with our price prediction graph.
STL-ORD
STL-MSP
ORD-MSP
MDW-MSP
ORD-GRB
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 Illinois to Wisconsin
USIL-USWI
STL-ORD
STL-MSP
ORD-MSP
MDW-MSP
What is the cheapest month to book a flight from Illinois to Wisconsin?
Currently, September is the cheapest month in which you can book a flight from Illinois to Wisconsin (average of $178). Flying from Illinois to Wisconsin in March is currently the most expensive (average of $268). 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 IL to WI?
Find hourly flight availability from Illinois to Wisconsin. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 3, 2026.
One of the essential ways to save on airfare from Illinois to Wisconsin is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the evening could potentially save you up to 19% on airfare.
What is the cheapest day to fly from Illinois to Wisconsin?
Use this chart to determine the cheapest time to fly round-trip from Illinois to Wisconsin. Price data was last updated on January 31, 2026.
Travelers seeking maximum savings on their Illinois to Wisconsin flight should consider departing on Thursday at noon when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Weekly flight availability from Illinois to Wisconsin
Explore weekly flight availability from Illinois to Wisconsin. 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 February 3, 2026.
The most flights from USIL to USWI are scheduled on a Tuesday (50 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (38 on average).
Reviews of airlines servicing Wisconsin
Get insights into the airlines that provide service to Wisconsin. 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 Wisconsin. Reviews last updated February 3, 2026.
Read through reviews of airlines operating flights from Illinois to Wisconsin, such as United Airlines and American Airlines. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
7.7
Comfort
7.3
Crew
8.1
Entertainment
7.1
Overall
7.4
Food
6.6
Reviews
1 / 20
10.0
ExcellentDane,Jan 2026
TYS - IAD
Boarding
7.7
Comfort
7.3
Crew
8.1
Entertainment
7.1
Overall
7.4
Food
6.6
Reviews
1 / 20
10.0
ExcellentDane,Jan 2026
TYS - IAD
Boarding
7.7
Comfort
7.3
Crew
8.1
Entertainment
7.1
Overall
7.4
Food
6.6
Reviews
1 / 20
10.0
ExcellentDane,Jan 2026
TYS - IAD
Related info for your journey
Find useful and relevant information for your journey from Illinois to Wisconsin. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
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Alternative routes for Illinois to Wisconsin
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Wisconsin by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Illinois to Wisconsin by cabin class
Find flights from Illinois to Wisconsin, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Illinois and Wisconsin flights
Browse other Illinois and Wisconsin flight options. Last updated on February 3, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Find a return flight route from Wisconsin
Find the right flight back to Illinois after your stay in Wisconsin
Illinois to Wisconsin flights
Consider these flights traveling from Illinois to Wisconsin.
Top 2 airlines flying from Illinois to Wisconsin
Discover the top 2 airlines that operate flights from Illinois to Wisconsin. 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 February 3, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$179 | Average$317 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$179 | Average$318 | FlexibilityNo cancel fee | On-time69% |