$50+ 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 10/30. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — MKE
Sep 14 — Sep 211
Round-trip
1 adult, Economy
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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 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 August 15, 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 August 15, 2026.
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 9/511:15 am -
1 stop7h 35m
Fri 9/117:55 am -
Nonstop1h 25m
Deal found 8/12![Southwest logo]()
$110
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/511:13 am -
Nonstop1h 37m
Sun 9/68:30 pm -
Nonstop1h 33m
Deal found 8/12![Delta logo]()
$117
This United Airlines deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” 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 9/57:25 am -
Nonstop1h 36m
Sun 9/610:29 am -
Nonstop1h 33m
Deal found 8/11![United Airlines logo]()
$117
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 9/511:15 am -
1 stop7h 35m
Sun 9/68:25 am -
Nonstop1h 25m
Deal found 8/13![Southwest logo]()
$118
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 9/55:13 pm -
Nonstop1h 39m
Sun 9/611:29 am -
Nonstop1h 25m
Deal found 8/13![American Airlines logo]()
$118
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/96:30 am -
1 stop17h 38m
Wed 9/167:00 am -
1 stop17h 23m
Deal found 8/12![Frontier logo]()
$123
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/166:30 am -
1 stop7h 08m
Sat 9/192:33 pm -
1 stop9h 50m
Deal found 8/12![Frontier logo]()
$124
This Southwest deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” 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 9/59:05 am -
2 stops9h 45m
Sun 9/66:30 am -
Nonstop1h 25m
Deal found 8/11![Southwest logo]()
$124
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 10/228:30 am -
Nonstop1h 30m
Mon 10/265:25 am -
1 stop3h 35m
Deal found 8/14![Southwest logo]()
$127
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.
Tue 9/295:10 pm -
Nonstop1h 35m
Tue 10/67:30 am -
1 stop5h 55m
Deal found 8/15![Southwest logo]()
$127
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/56:45 pm -
1 stop26h 56m
Sat 9/128:08 pm -
1 stop15h 09m
Deal found 8/14![Frontier logo]()
$128
This Faresmojo 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 Faresmojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/116:10 am -
Nonstop1h 36m
Tue 10/67:10 am -
Nonstop1h 43m
Deal found 8/13![JetBlue logo]()
$128
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 August 15, 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 August 15, 2026.
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/195:47 pm -
Nonstop1h 42m
Mon 9/219:45 pm -
Nonstop1h 31m
Deal found 8/14![Delta logo]()
$117
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 10/229:50 pm -
Nonstop1h 30m
Sat 10/247:50 am -
Nonstop1h 30m
Deal found 8/14![Southwest logo]()
$117
This American Airlines deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/77:58 pm -
Nonstop1h 02m
Mon 9/148:14 pm -
Nonstop1h 16m
Deal found 8/10![American Airlines logo]()
$149
This United Airlines deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/810:25 am -
Nonstop1h 05m
Tue 9/156:00 am -
Nonstop1h 11m
Deal found 8/11![United Airlines logo]()
$149
This Delta deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” 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 9/55:34 pm -
Nonstop1h 41m
Sun 9/68:50 am -
Nonstop1h 33m
Deal found 8/11![Delta logo]()
$117
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 10/228:30 am -
Nonstop1h 30m
Mon 10/265:25 am -
1 stop3h 35m
Deal found 8/14![Southwest logo]()
$127
This American Airlines deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/126:56 am -
Nonstop1h 05m
Sat 9/121:18 pm -
Nonstop1h 21m
Deal found 8/11![American Airlines logo]()
$149
This American Airlines deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/98:51 pm -
Nonstop1h 03m
Tue 9/158:31 am -
Nonstop1h 30m
Deal found 8/10![American Airlines logo]()
$149
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/36:00 am -
Nonstop1h 30m
Sun 9/61:20 pm -
Nonstop1h 39m
Deal found 8/12![Delta logo]()
$152
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 11/148:30 am -
Nonstop1h 34m
Mon 11/162:12 pm -
Nonstop1h 31m
Deal found 8/14![United Airlines logo]()
$174
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/35:27 pm -
Nonstop1h 03m
Mon 9/78:20 am -
Nonstop1h 21m
Deal found 8/12![American Airlines logo]()
$150
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/36:00 am -
Nonstop1h 30m
Sat 9/54:00 pm -
Nonstop1h 41m
Deal found 8/13![Delta logo]()
$152
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.
Wed 10/710:00 pm -
Nonstop0h 59m
Mon 10/127:18 am -
Nonstop1h 11m
Deal found 8/14![United Airlines logo]()
$179
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/102:18 pm -
1 stop6h 07m
Wed 1/139:30 am -
1 stop5h 01m
Deal found 8/15![Delta logo]()
$157
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.
Sat 9/58:00 am -
Nonstop1h 34m
Sun 9/68:40 am -
Nonstop1h 32m
Deal found 8/13![United Airlines logo]()
$188
This Southwest deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” 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 9/248:00 am -
Nonstop1h 45m
Thu 10/15:25 am -
Nonstop1h 30m
Deal found 8/10![Southwest logo]()
$208
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/212:38 pm -
1 stop5h 52m
Sat 10/249:59 am -
1 stop6h 39m
Deal found 8/15![Delta logo]()
$157
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/56:56 pm -
Nonstop1h 03m
Mon 9/78:20 am -
Nonstop1h 21m
Deal found 8/14![American Airlines logo]()
$180
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/310:14 am -
1 stop3h 45m
Sat 12/55:13 pm -
1 stop3h 38m
Deal found 8/14![Delta logo]()
$157
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 10/17:45 am -
Nonstop1h 25m
Sun 10/410:40 am -
Nonstop1h 30m
Deal found 8/14![Southwest logo]()
$221
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.
Thu 10/158:00 am -
Nonstop1h 31m
Mon 10/197:50 pm -
Nonstop1h 31m
Deal found 8/14![United Airlines logo]()
$204
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.
Sat 9/122:40 pm -
Nonstop1h 30m
Mon 9/146:20 pm -
1 stop3h 50m
Deal found 8/14![Southwest logo]()
$224
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/55:34 pm -
Nonstop1h 41m
Tue 9/89:45 pm -
Nonstop1h 31m
Deal found 8/13![Delta logo]()
$176
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.
Tue 11/31:55 pm -
Nonstop1h 03m
Wed 11/118:50 am -
Nonstop1h 10m
Deal found 8/12![United Airlines logo]()
$219
This Southwest deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” 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 10/58:30 am -
Nonstop1h 15m
Tue 10/62:20 pm -
1 stop4h 40m
Deal found 8/11![Southwest logo]()
$225
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/288:25 pm -
Nonstop1h 43m
Wed 9/306:05 am -
1 stop4h 32m
Deal found 8/14![Delta logo]()
$177
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 11/512:45 pm -
Nonstop1h 03m
Thu 11/56:18 pm -
Nonstop1h 12m
Deal found 8/12![United Airlines logo]()
$219
This American Airlines deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” 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 11/611:25 am -
Nonstop1h 18m
Tue 11/109:40 am -
Nonstop1h 15m
Deal found 8/10![American Airlines logo]()
$249
This Southwest deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” 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 10/199:50 pm -
Nonstop1h 15m
Thu 10/228:15 am -
Nonstop1h 15m
Deal found 8/11![Southwest logo]()
$229
This United Airlines deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/168:30 am -
Nonstop1h 35m
Thu 9/1710:25 am -
Nonstop1h 32m
Deal found 8/11![United Airlines logo]()
$219
Last-minute flights from Illinois to WisconsinDiscover last-minute flight deals from Illinois to Wisconsin. Data last updated August 15, 2026 and is based on user searches.
Discover last-minute flight deals from Illinois to Wisconsin. Data last updated August 15, 2026 and is based on user searches.
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 9/511:15 am -
1 stop7h 35m
Fri 9/117:55 am -
Nonstop1h 25m
Deal found 8/12![Southwest logo]()
$110
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/511:13 am -
Nonstop1h 37m
Sun 9/68:30 pm -
Nonstop1h 33m
Deal found 8/12![Delta logo]()
$117
This United Airlines deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” 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 9/57:25 am -
Nonstop1h 36m
Sun 9/610:29 am -
Nonstop1h 33m
Deal found 8/11![United Airlines logo]()
$117
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 9/511:15 am -
1 stop7h 35m
Sun 9/68:25 am -
Nonstop1h 25m
Deal found 8/13![Southwest logo]()
$118
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 9/55:13 pm -
Nonstop1h 39m
Sun 9/611:29 am -
Nonstop1h 25m
Deal found 8/13![American Airlines logo]()
$118
This Southwest deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” 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 9/59:05 am -
2 stops9h 45m
Sun 9/66:30 am -
Nonstop1h 25m
Deal found 8/11![Southwest logo]()
$124
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.
Sat 9/511:15 am -
1 stop7h 35m
Sat 9/128:05 am -
Nonstop1h 25m
Deal found 8/14![Southwest logo]()
$127
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/56:45 pm -
1 stop26h 56m
Sat 9/128:08 pm -
1 stop15h 09m
Deal found 8/14![Frontier logo]()
$128
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/96:30 am -
1 stop17h 38m
Wed 9/167:00 am -
1 stop17h 23m
Deal found 8/12![Frontier logo]()
$123
This Faresmojo 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 Faresmojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/116:10 am -
Nonstop1h 36m
Tue 10/67:10 am -
Nonstop1h 43m
Deal found 8/13![JetBlue logo]()
$128
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/166:30 am -
1 stop7h 08m
Sat 9/192:33 pm -
1 stop9h 50m
Deal found 8/12![Frontier logo]()
$124
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.
Tue 9/295:10 pm -
Nonstop1h 35m
Tue 10/67:30 am -
1 stop5h 55m
Deal found 8/15![Southwest logo]()
$127
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 August 15, 2026.
Search for one-way flight options from Illinois to Wisconsin. Find affordable one-way fares based on user searches. Data last updated August 15, 2026.
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 10/308:30 am -
Nonstop1h 30m
Deal found 8/13![Southwest logo]()
$50
This Kiwi.com deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” 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 9/118:10 pm -
1 stop17h 28m
Deal found 8/11![Frontier logo]()
$57
This Trip.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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/308:10 pm -
1 stop25h 25m
Deal found 8/13![Frontier logo]()
$58
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/115:47 pm -
Nonstop1h 42m
Deal found 8/12![Delta logo]()
$59
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/66:00 am -
Nonstop1h 30m
Deal found 8/12![Delta logo]()
$59
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/3110:01 am -
Nonstop1h 41m
Deal found 8/14![Delta logo]()
$59
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 9/119:40 am -
Nonstop1h 36m
Deal found 8/13![United Airlines logo]()
$59
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 9/156:30 am -
1 stop17h 38m
Deal found 8/14![Frontier logo]()
$60
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 10/305:00 am -
1 stop7h 00m
Deal found 8/13![Southwest logo]()
$60
This Trip.com deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” 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.
Wed 9/96:30 am -
1 stop7h 08m
Deal found 8/11![Frontier logo]()
$62
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 10/126:35 pm -
1 stop23h 56m
Deal found 8/15![Frontier logo]()
$62
This Kiwi.com deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” 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 9/226:30 am -
1 stop17h 38m
Deal found 8/10![Frontier logo]()
$63
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 August 15, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $110 (Southwest) |
One-way from | $50 (Southwest) |
Good round-trip deal | $179 or less |
Good one-way deal | $98 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 August 15, 2026.
Use the filters below to find and compare flights from Illinois to Wisconsin that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
St. LouisMinneapolis
STL Lambert-St Louis - MSP Minneapolis St Paul
STLMSP
Lambert-St Louis
Sat 9/19
5:47 pm-7:29 pm
Nonstop1h 42m
Minneapolis St Paul
Mon 9/21
9:45 pm-11:16 pm
Nonstop1h 31m
$117
St. LouisMinneapolis
STL Lambert-St Louis - MSP Minneapolis St Paul
STLMSP
Lambert-St Louis
Thu 10/22
9:50 pm-11:20 pm
Nonstop1h 30m
Minneapolis St Paul
Sat 10/24
7:50 am-9:20 am
Nonstop1h 30m
$117
St. LouisMinneapolis
STL Lambert-St Louis - MSP Minneapolis St Paul
STLMSP
Lambert-St Louis
Sat 9/5
5:34 pm-7:15 pm
Nonstop1h 41m
Minneapolis St Paul
Sun 9/6
8:50 am-10:23 am
Nonstop1h 33m
$117
St. LouisMinneapolis
STL Lambert-St Louis - MSP Minneapolis St Paul
STLMSP
Lambert-St Louis
Thu 10/22
8:30 am-10:00 am
Nonstop1h 30m
Minneapolis St Paul
Mon 10/26
5:25 am-9:00 am
1 stop3h 35m
$127
ChicagoMilwaukee
ORD Chicago O'Hare Intl - MKE Milwaukee-Mitchell
ORDMKE
Chicago O'Hare Intl
Mon 9/7
7:58 pm-9:00 pm
Nonstop1h 02m
Milwaukee-Mitchell
Mon 9/14
8:14 pm-9:30 pm
Nonstop1h 16m
$149
ChicagoMilwaukee
ORD Chicago O'Hare Intl - MKE Milwaukee-Mitchell
ORDMKE
Chicago O'Hare Intl
Tue 9/8
10:25 am-11:30 am
Nonstop1h 05m
Milwaukee-Mitchell
Tue 9/15
6:00 am-7:11 am
Nonstop1h 11m
$149
ChicagoMilwaukee
ORD Chicago O'Hare Intl - MKE Milwaukee-Mitchell
ORDMKE
Chicago O'Hare Intl
Sat 9/12
6:56 am-8:01 am
Nonstop1h 05m
Milwaukee-Mitchell
Sat 9/12
1:18 pm-2:39 pm
Nonstop1h 21m
$149
ChicagoMilwaukee
ORD Chicago O'Hare Intl - MKE Milwaukee-Mitchell
ORDMKE
Chicago O'Hare Intl
Wed 9/9
8:51 pm-9:54 pm
Nonstop1h 03m
Milwaukee-Mitchell
Tue 9/15
8:31 am-10:01 am
Nonstop1h 30m
$149
ChicagoMilwaukee
ORD Chicago O'Hare Intl - MKE Milwaukee-Mitchell
ORDMKE
Chicago O'Hare Intl
Thu 9/3
5:27 pm-6:30 pm
Nonstop1h 03m
Milwaukee-Mitchell
Mon 9/7
8:20 am-9:41 am
Nonstop1h 21m
$150
ChicagoMinneapolis
ORD Chicago O'Hare Intl - MSP Minneapolis St Paul
ORDMSP
Chicago O'Hare Intl
Thu 9/3
6:00 am-7:30 am
Nonstop1h 30m
Minneapolis St Paul
Sun 9/6
1:20 pm-2:59 pm
Nonstop1h 39m
$152
Showing 1-10 of 60 resultsSorted by cheapest first
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-MSP
STL-ORD
ORD-MSP
MDW-MSP
ORD-MKE
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-MSP
STL-ORD
ORD-MSP
MDW-MSP
What is the cheapest month to book a flight from Illinois to Wisconsin?
Currently, January is the cheapest month in which you can book a flight from Illinois to Wisconsin (average of $194). Flying from Illinois to Wisconsin in April is currently the most expensive (average of $524). 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 August 15, 2026.
One of the essential ways to save on airfare from Illinois to Wisconsin is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 37% on airfare.
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 August 15, 2026.
The most flights from USIL to USWI are scheduled on a Friday (53 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (40 on average).
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 August 8, 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.
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 August 15, 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
Overall
7.4
Comfort
7.3
Entertainment
7.1
Food
6.7
Crew
8.1
Reviews
1 / 20
2.0
MediocreDawn,Aug 2026
ORD - DEN
Boarding
7.7
Overall
7.4
Comfort
7.3
Entertainment
7.1
Food
6.7
Crew
8.1
Reviews
1 / 20
2.0
MediocreDawn,Aug 2026
ORD - DEN
Boarding
7.7
Overall
7.4
Comfort
7.3
Entertainment
7.1
Food
6.7
Crew
8.1
Reviews
1 / 20
2.0
MediocreDawn,Aug 2026
ORD - DEN
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.
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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 August 15, 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 August 15, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$179 | Average$339 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$179 | Average$385 | FlexibilityNo cancel fee | On-time69% |