$59+ Cheap flights from Michigan to Illinois
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/7. Fares are subject to change and may not be available on all flights or dates of travel.
DTW — ORD
Oct 14 — Oct 211
Round-trip
1 adult, Economy
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Find cheap flights from Michigan to Illinois with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Cheapest flights from Michigan to IllinoisExplore the most affordable flight options available from Michigan to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 14, 2026.
Explore the most affordable flight options available from Michigan to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 14, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/11. 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.
Wed 11/116:25 am -
1 stop12h 15m
Mon 11/166:44 pm -
1 stop15h 59m
Deal found 9/11![Frontier logo]()
$102
This Kiwi.com deal was found by Cheapflights users on 9/11. 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.
Wed 11/116:25 am -
1 stop12h 15m
Wed 11/186:44 pm -
1 stop5h 00m
Deal found 9/11![Frontier logo]()
$120
This Kiwi.com deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 11/123:02 pm -
1 stop27h 38m
Mon 11/166:44 pm -
1 stop15h 59m
Deal found 9/9![Frontier logo]()
$132
This Super.com deal was found by Cheapflights users on 9/10. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/47:15 am -
1 stop10h 25m
Sat 11/77:59 pm -
1 stop28h 22m
Deal found 9/10![Frontier logo]()
$147
This Kiwi.com deal was found by Cheapflights users on 9/11. 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 11/136:25 am -
1 stop12h 15m
Mon 11/166:44 pm -
1 stop15h 59m
Deal found 9/11![Frontier logo]()
$148
This Kiwi.com deal was found by Cheapflights users on 9/11. 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.
Thu 11/123:02 pm -
1 stop27h 38m
Wed 11/186:44 pm -
1 stop5h 00m
Deal found 9/11![Frontier logo]()
$150
This Kissandfly.com deal was found by Cheapflights users on 9/10. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/111:05 pm -
Nonstop1h 22m
Mon 10/58:10 pm -
1 stop28h 13m
Deal found 9/10![Frontier logo]()
$152
This Southwest deal was found by Cheapflights users on 9/11. 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.
Thu 10/17:50 am -
Nonstop1h 10m
Fri 10/25:50 pm -
1 stop3h 35m
Deal found 9/11![Southwest logo]()
$154
This Delta deal was found by Cheapflights users on 9/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/16:10 am -
1 stop4h 21m
Mon 10/51:55 pm -
1 stop4h 31m
Deal found 9/10![Delta logo]()
$157
This Kiwi.com deal was found by Cheapflights users on 9/11. 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.
Wed 10/216:00 am -
1 stop11h 40m
Fri 10/236:35 pm -
1 stop16h 57m
Deal found 9/11![Frontier logo]()
$159
This Kiwi.com deal was found by Cheapflights users on 9/11. 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 11/136:25 am -
1 stop12h 15m
Wed 11/186:44 pm -
1 stop5h 00m
Deal found 9/11![Frontier logo]()
$165
This Priceline deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 10/57:00 am -
1 stop7h 10m
Mon 10/126:35 pm -
1 stop5h 04m
Deal found 9/9![Frontier logo]()
$166
Best flights from Michigan to IllinoisDiscover carefully curated flight deals from Michigan to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 14, 2026.
Discover carefully curated flight deals from Michigan to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 14, 2026.
This Delta deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 10/16:10 am -
1 stop4h 21m
Sat 10/36:40 am -
1 stop3h 57m
Deal found 9/9![Delta logo]()
$157
This Southwest deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 10/111:10 am -
1 stop5h 45m
Fri 10/23:05 pm -
1 stop5h 50m
Deal found 9/9![Southwest logo]()
$164
This United Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 10/137:50 pm -
Nonstop1h 31m
Wed 10/141:29 pm -
Nonstop1h 31m
Deal found 9/9![United Airlines logo]()
$184
This American Airlines deal was found by Cheapflights users on 9/13. 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 10/35:59 pm -
Nonstop1h 44m
Sun 11/12:35 pm -
Nonstop1h 26m
Deal found 9/13![American Airlines logo]()
$305
This Southwest deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 10/139:40 am -
Nonstop1h 10m
Wed 10/1410:55 am -
Nonstop1h 10m
Deal found 9/9![Southwest logo]()
$187
This Southwest deal was found by Cheapflights users on 9/13. 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.
Tue 10/134:00 pm -
1 stop4h 25m
Wed 10/141:05 pm -
Nonstop1h 05m
Deal found 9/13![Southwest logo]()
$217
This United Airlines deal was found by Cheapflights users on 9/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2410:00 pm -
Nonstop1h 38m
Sat 12/268:05 am -
Nonstop1h 33m
Deal found 9/10![United Airlines logo]()
$242
This KAYAK deal was found by Cheapflights users on 9/10. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/612:33 pm -
Nonstop1h 26m
Wed 10/75:29 pm -
Nonstop1h 31m
Deal found 9/10![Delta logo]()
$244
This United Airlines deal was found by Cheapflights users on 9/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/238:30 am -
Nonstop1h 36m
Sun 10/2510:25 am -
Nonstop1h 22m
Deal found 9/10![United Airlines logo]()
$265
This Delta deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 11/178:40 am -
Nonstop1h 45m
Mon 11/236:00 am -
1 stop6h 04m
Deal found 9/9![Delta logo]()
$267
This United Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 11/125:45 am -
Nonstop1h 44m
Sun 11/1510:25 am -
Nonstop1h 22m
Deal found 9/9![United Airlines logo]()
$265
This Southwest deal was found by Cheapflights users on 9/10. 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.
Tue 11/101:25 pm -
1 stop3h 50m
Fri 11/1312:45 pm -
2 stops5h 50m
Deal found 9/10![Southwest logo]()
$266
This Delta deal was found by Cheapflights users on 9/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/205:56 pm -
Nonstop1h 34m
Mon 11/237:05 am -
Nonstop1h 25m
Deal found 9/10![Delta logo]()
$271
This American Airlines deal was found by Cheapflights users on 9/13. 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.
Fri 9/255:59 pm -
Nonstop1h 44m
Sun 9/2710:05 pm -
Nonstop1h 20m
Deal found 9/13![American Airlines logo]()
$334
This United Airlines deal was found by Cheapflights users on 9/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/147:10 am -
Nonstop1h 19m
Wed 10/1412:39 pm -
Nonstop1h 10m
Deal found 9/10![United Airlines logo]()
$265
This Southwest deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 10/58:05 pm -
1 stop4h 15m
Wed 10/76:30 pm -
Nonstop1h 35m
Deal found 9/9![Southwest logo]()
$267
This Delta deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 11/123:50 pm -
1 stop5h 27m
Sun 11/158:29 am -
1 stop5h 41m
Deal found 9/9![Delta logo]()
$284
This KAYAK deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/135:16 pm -
1 stop6h 26m
Wed 10/145:27 pm -
Nonstop1h 38m
Deal found 9/9![American Airlines logo]()
$348
This United Airlines deal was found by Cheapflights users on 9/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/96:55 am -
Nonstop1h 29m
Tue 10/139:35 pm -
Nonstop1h 20m
Deal found 9/10![United Airlines logo]()
$269
This Southwest deal was found by Cheapflights users on 9/10. 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.
Fri 2/58:30 pm -
Nonstop1h 15m
Sun 2/78:50 pm -
Nonstop1h 05m
Deal found 9/10![Southwest logo]()
$269
This Delta deal was found by Cheapflights users on 9/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/18:45 am -
Nonstop1h 22m
Sun 10/47:01 pm -
Nonstop1h 19m
Deal found 9/10![Delta logo]()
$284
This American Airlines deal was found by Cheapflights users on 9/13. 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.
Sun 10/189:01 pm -
1 stop4h 18m
Mon 10/197:28 am -
1 stop5h 28m
Deal found 9/13![American Airlines logo]()
$357
This United Airlines deal was found by Cheapflights users on 9/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/166:27 pm -
Nonstop1h 38m
Fri 11/279:20 pm -
Nonstop1h 16m
Deal found 9/10![United Airlines logo]()
$269
This Southwest deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 11/66:30 pm -
Nonstop1h 20m
Sun 11/81:05 pm -
Nonstop1h 05m
Deal found 9/9![Southwest logo]()
$269
This Delta deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 10/237:10 am -
Nonstop1h 31m
Sun 10/258:29 am -
Nonstop1h 23m
Deal found 9/9![Delta logo]()
$285
This United Airlines deal was found by Cheapflights users on 9/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/176:31 pm -
Nonstop1h 29m
Thu 10/229:35 pm -
Nonstop1h 20m
Deal found 9/10![United Airlines logo]()
$269
This Southwest deal was found by Cheapflights users on 9/11. 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.
Fri 10/25:50 pm -
Nonstop1h 10m
Mon 10/55:25 am -
Nonstop1h 05m
Deal found 9/11![Southwest logo]()
$269
This Delta deal was found by Cheapflights users on 9/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/25:57 pm -
1 stop3h 33m
Tue 10/65:29 pm -
1 stop5h 30m
Deal found 9/10![Delta logo]()
$289
This United Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 11/259:00 am -
Nonstop1h 43m
Wed 12/29:24 pm -
Nonstop1h 19m
Deal found 9/9![United Airlines logo]()
$269
This Southwest deal was found by Cheapflights users on 9/11. 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 10/1210:05 pm -
Nonstop1h 15m
Wed 10/1410:20 am -
1 stop4h 05m
Deal found 9/11![Southwest logo]()
$279
Last-minute flights from Michigan to IllinoisDiscover last-minute flight deals from Michigan to Illinois. Data last updated September 14, 2026 and is based on user searches.
Discover last-minute flight deals from Michigan to Illinois. Data last updated September 14, 2026 and is based on user searches.
This Kissandfly.com deal was found by Cheapflights users on 9/10. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/111:05 pm -
Nonstop1h 22m
Mon 10/58:10 pm -
1 stop28h 13m
Deal found 9/10![Frontier logo]()
$152
This Southwest deal was found by Cheapflights users on 9/11. 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.
Thu 10/17:50 am -
Nonstop1h 10m
Fri 10/25:50 pm -
1 stop3h 35m
Deal found 9/11![Southwest logo]()
$154
This Delta deal was found by Cheapflights users on 9/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/16:10 am -
1 stop4h 21m
Mon 10/51:55 pm -
1 stop4h 31m
Deal found 9/10![Delta logo]()
$157
This Delta deal was found by Cheapflights users on 9/10. 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 Delta is selected, and click “Compare selected ” under the list of providers to see comparable flight deals.
Thu 10/19:29 am -
1 stop3h 37m
Mon 10/51:55 pm -
1 stop4h 38m
Deal found 9/10![Delta logo]()
$175
This Priceline deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 10/57:00 am -
1 stop7h 10m
Mon 10/126:35 pm -
1 stop5h 04m
Deal found 9/9![Frontier logo]()
$166
This Priceline deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 10/57:00 am -
1 stop7h 10m
Wed 10/72:29 pm -
1 stop9h 13m
Deal found 9/9![Frontier logo]()
$172
This United Airlines deal was found by Cheapflights users on 9/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/137:50 pm -
Nonstop1h 31m
Thu 10/156:00 am -
Nonstop1h 36m
Deal found 9/10![United Airlines logo]()
$184
This Kiwi.com deal was found by Cheapflights users on 9/11. 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.
Wed 10/216:00 am -
1 stop11h 40m
Fri 10/236:35 pm -
1 stop16h 57m
Deal found 9/11![Frontier logo]()
$159
This Kiwi.com deal was found by Cheapflights users on 9/11. 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.
Wed 10/216:30 am -
1 stop12h 10m
Mon 10/266:35 pm -
1 stop15h 37m
Deal found 9/11![Frontier logo]()
$171
This Kiwi.com deal was found by Cheapflights users on 9/11. 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.
Wed 10/216:30 am -
1 stop12h 10m
Wed 10/286:44 pm -
2 stops15h 56m
Deal found 9/11![Frontier logo]()
$181
This Kiwi.com deal was found by Cheapflights users on 9/11. 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 10/237:22 pm -
2 stops28h 51m
Wed 10/286:44 pm -
1 stop5h 00m
Deal found 9/11![Frontier logo]()
$186
This Southwest deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 10/281:05 pm -
2 stops5h 55m
Fri 10/303:05 pm -
1 stop5h 50m
Deal found 9/9![Southwest logo]()
$169
One-way flights from Michigan to IllinoisSearch for one-way flight options from Michigan to Illinois. Find affordable one-way fares based on user searches. Data last updated September 14, 2026.
Search for one-way flight options from Michigan to Illinois. Find affordable one-way fares based on user searches. Data last updated September 14, 2026.
This Frontier deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/76:25 am -
1 stop6h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Frontier logo]()
$59
This Frontier deal was found by Cheapflights users on 9/10. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/76:20 am -
1 stop6h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Frontier logo]()
$59
This Super.com deal was found by Cheapflights users on 9/10. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/86:20 am -
1 stop10h 38m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Frontier logo]()
$64
This Frontier deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/216:21 am -
1 stop11h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Frontier logo]()
$65
This Travelocity deal was found by Cheapflights users on 9/10. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/96:30 am -
1 stop12h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Frontier logo]()
$65
This Southwest deal was found by Cheapflights users on 9/10. 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.
Tue 10/139:25 am -
1 stop4h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Southwest logo]()
$69
This CheapOair deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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 10/37:32 pm -
1 stop15h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Frontier logo]()
$70
This Orbitz deal was found by Cheapflights users on 9/10. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/286:25 am -
1 stop12h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Frontier logo]()
$78
This Delta deal was found by Cheapflights users on 9/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/712:39 pm -
1 stop3h 51m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Delta logo]()
$79
This Delta deal was found by Cheapflights users on 9/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/88:39 am -
1 stop4h 51m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Delta logo]()
$79
This Super.com deal was found by Cheapflights users on 9/10. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/66:30 am -
1 stop12h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Frontier logo]()
$81
This Trip.com deal was found by Cheapflights users on 9/10. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/146:30 am -
1 stop12h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Frontier logo]()
$82
Find flight deals from Michigan to Illinois
Keep the following information in mind while searching for Michigan to Illinois flight deals. Data was last updated September 14, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $102 (Kiwi.com) |
One-way from | $59 (Frontier) |
Popular in | June |
Cheapest in | January |
Average price | $227 |
Good round-trip deal | $123 or less |
Good one-way deal | $61 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Michigan to Illinois that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 14, 2026.
Use the filters below to find and compare flights from Michigan to Illinois that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
ChicagoSt. Louis
MDW Chicago Midway - STL Lambert-St Louis
MDWSTL
Chicago Midway
Mon 11/16
11:30 am-12:40 pm
Nonstop1h 10m
Lambert-St Louis
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$59
ChicagoSt. Louis
ORD Chicago O'Hare Intl - STL Lambert-St Louis
ORDSTL
Chicago O'Hare Intl
Tue 11/10
8:10 pm-9:40 pm
Nonstop1h 30m
Lambert-St Louis
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$59
ChicagoSt. Louis
MDW Chicago Midway - STL Lambert-St Louis
MDWSTL
Chicago Midway
Tue 10/20
8:05 am-9:15 am
Nonstop1h 10m
Lambert-St Louis
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$59
ChicagoSt. Louis
ORD Chicago O'Hare Intl - STL Lambert-St Louis
ORDSTL
Chicago O'Hare Intl
Sat 10/3
2:12 pm-3:43 pm
Nonstop1h 31m
Lambert-St Louis
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$59
ChicagoSt. Louis
MDW Chicago Midway - STL Lambert-St Louis
MDWSTL
Chicago Midway
Mon 11/9
6:30 am-7:45 am
Nonstop1h 15m
Lambert-St Louis
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$59
ChicagoSt. Louis
MDW Chicago Midway - STL Lambert-St Louis
MDWSTL
Chicago Midway
Thu 11/12
9:30 am-1:23 pm
1 stop3h 53m
Lambert-St Louis
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$79
ChicagoSt. Louis
MDW Chicago Midway - STL Lambert-St Louis
MDWSTL
Chicago Midway
Tue 11/10
9:30 am-1:23 pm
1 stop3h 53m
Lambert-St Louis
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$79
ChicagoSt. Louis
MDW Chicago Midway - STL Lambert-St Louis
MDWSTL
Chicago Midway
Sat 10/10
9:29 am-3:37 pm
1 stop6h 08m
Lambert-St Louis
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$79
ChicagoSt. Louis
ORD Chicago O'Hare Intl - STL Lambert-St Louis
ORDSTL
Chicago O'Hare Intl
Thu 12/10
9:59 am-4:30 pm
1 stop6h 31m
Lambert-St Louis
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$79
ChicagoSt. Louis
ORD Chicago O'Hare Intl - STL Lambert-St Louis
ORDSTL
Chicago O'Hare Intl
Mon 12/7
7:05 am-1:30 pm
1 stop6h 25m
Lambert-St Louis
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$79
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Michigan to Illinois
Have a flexible travel schedule? Discover the best time to fly to Illinois from Michigan with our price prediction graph.
DTW-STL
ORD-STL
MDW-STL
FNT-ORD
DTW-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 Michigan to Illinois
USMI-USIL
DTW-STL
ORD-STL
MDW-STL
FNT-ORD
What is the cheapest month to book a flight from Michigan to Illinois?
Currently, November is the cheapest month in which you can book a flight from Michigan to Illinois (average of $234). Flying from Michigan to Illinois in June is currently the most expensive (average of $342). 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 MI to IL?
Find hourly flight availability from Michigan to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 14, 2026.
Unlike in the evening, when flights are generally more expensive, you can save up to 12% on flights from Michigan to Illinois by exploring options for tickets in the morning.
Weekly flight availability from Michigan to Illinois
Explore weekly flight availability from Michigan to Illinois. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated September 14, 2026.
The most flights from USMI to USIL are scheduled on a Friday (94 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (68 on average).
How much does it cost to fly round-trip from Michigan to Illinois?
Airfare is below average for this route at the moment.
Michigan to Illinois flights typically cost between $241 and $429 in October.The cheapest round-trip price found within the last 5 days was $217 on Delta (Oct 1-Oct 5).
How far ahead should I book a flight from Michigan to Illinois?
To ensure you get the cheapest price possible for a flight from Michigan to Illinois, you should look to book at least 80 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest day to fly from Michigan to Illinois?
Use this chart to determine the cheapest time to fly round-trip from Michigan to Illinois. Price data was last updated on September 12, 2026.
Travelers seeking maximum savings on their Michigan to Illinois flight should consider departing on Monday at noon when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Reviews of airlines servicing Illinois
Get insights into the airlines that provide service to Illinois. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Illinois. Reviews last updated September 14, 2026.
See what other customers who have flown with Denver Air Connection,Southwest, andDelta from Michigan to Illinois have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Denver Air Connection
Crew
9.2
Comfort
8.7
Boarding
8.3
Overall
8.2
Food
8.3
Entertainment
7.6
Denver Air Connection
Denver Air Connection
Crew
9.2
Comfort
8.7
Boarding
8.3
Overall
8.2
Food
8.3
Entertainment
7.6
Denver Air Connection
Crew
9.2
Comfort
8.7
Boarding
8.3
Overall
8.2
Food
8.3
Entertainment
7.6
Denver Air Connection
Crew
9.2
Comfort
8.7
Boarding
8.3
Overall
8.2
Food
8.3
Entertainment
7.6
Denver Air Connection
Crew
9.2
Comfort
8.7
Boarding
8.3
Overall
8.2
Food
8.3
Entertainment
7.6
Denver Air Connection
Crew
9.2
Comfort
8.7
Boarding
8.3
Overall
8.2
Food
8.3
Entertainment
7.6
Related info for your journey
Find useful and relevant information for your journey from Michigan to Illinois. 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 Michigan to Illinois
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Illinois by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Michigan to Illinois by cabin class
Find flights from Michigan to Illinois, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Michigan and Illinois flights
Browse other Michigan and Illinois flight options. Last updated on September 14, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Find a return flight route from Illinois
Find the right flight back to Michigan after your stay in Illinois
Michigan to Illinois flights
Consider these flights traveling from Michigan to Illinois.
Top 5 airlines flying from Michigan to Illinois
Discover the top 5 airlines that operate flights from Michigan to Illinois. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 14, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$70 | Average$229 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$121 | Average$317 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$131 | Average$323 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$137 | Average$284 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$137 | Average$313 | FlexibilityNo cancel fee | On-time71% |