$59+ Cheap flights from Illinois to Michigan
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 10/1. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — DTW
Aug 10 — Aug 171
Round-trip
1 adult, Economy
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Find cheap flights from Illinois to Michigan with Cheapflights
1. Tell us where you want to go
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Cheapest flights from Illinois to MichiganExplore the most affordable flight options available from Illinois to Michigan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 11, 2026.
Explore the most affordable flight options available from Illinois to Michigan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 11, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/10. 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.
Sat 8/14:57 pm
STL
- DTW
1 stop6h 43m
Frontier
Thu 8/66:10 am
DTW
- STL
1 stop12h 27m
Frontier
Deal found 7/10![Frontier logo]()
$143
This Kiwi.com deal was found by Cheapflights users on 7/9. 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 8/206:17 pm
STL
- DTW
1 stop5h 47m
Frontier
Mon 8/246:00 am
DTW
- STL
1 stop12h 22m
Frontier
Deal found 7/9![Frontier logo]()
$144
This Kiwi.com deal was found by Cheapflights users on 7/10. 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.
Fri 7/314:57 pm
STL
- DTW
1 stop6h 43m
Frontier
Mon 8/105:35 pm
DTW
- STL
1 stop25h 02m
Frontier
Deal found 7/10![Frontier logo]()
$145
This Kiwi.com deal was found by Cheapflights users on 7/10. 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.
Sat 8/14:57 pm
STL
- DTW
1 stop6h 43m
Frontier
Fri 8/75:35 pm
DTW
- STL
1 stop16h 22m
Frontier
Deal found 7/10![Frontier logo]()
$146
This Kiwi.com deal was found by Cheapflights users on 7/10. 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.
Mon 8/34:57 pm
STL
- DTW
1 stop6h 43m
Frontier
Fri 8/75:35 pm
DTW
- STL
1 stop16h 22m
Frontier
Deal found 7/10![Frontier logo]()
$147
This Kiwi.com deal was found by Cheapflights users on 7/10. 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.
Mon 8/34:57 pm
STL
- DTW
1 stop6h 43m
Frontier
Sun 8/96:10 am
DTW
- STL
1 stop27h 47m
Frontier
Deal found 7/10![Frontier logo]()
$148
This Kiwi.com deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” 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 8/138:52 pm
ORD
- GRR
1 stop20h 20m
Multiple Airlines
Mon 8/171:26 pm
GRR
- ORD
1 stop7h 27m
Multiple Airlines
Deal found 7/8![Multiple Airlines logo]()
$151
This Kiwi.com deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/314:57 pm
STL
- DTW
1 stop6h 43m
Frontier
Mon 8/35:35 pm
DTW
- STL
1 stop25h 02m
Frontier
Deal found 7/7![Frontier logo]()
$154
This Kiwi.com deal was found by Cheapflights users on 7/10. 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.
Sat 8/14:57 pm
STL
- DTW
1 stop6h 43m
Frontier
Tue 8/46:10 am
DTW
- STL
1 stop27h 47m
Frontier
Deal found 7/10![Frontier logo]()
$155
This Kiwi.com deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” 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 8/34:57 pm
STL
- DTW
1 stop19h 36m
Frontier
Tue 8/112:56 pm
DTW
- STL
1 stop19h 01m
Frontier
Deal found 7/7![Frontier logo]()
$156
This American Airlines deal was found by Cheapflights users on 7/10. 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.
Thu 8/1310:35 pm
ORD
- GRR
Nonstop1h 06m
American Airlines
Mon 8/176:57 pm
GRR
- ORD
Nonstop1h 32m
American Airlines
Deal found 7/10![American Airlines logo]()
$157
This Kiwi.com deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” 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 8/34:57 pm
STL
- DTW
1 stop6h 43m
Frontier
Wed 8/55:13 pm
DTW
- STL
1 stop25h 24m
Frontier
Deal found 7/8![Frontier logo]()
$158
Best flights from Illinois to MichiganDiscover carefully curated flight deals from Illinois to Michigan that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 11, 2026.
Discover carefully curated flight deals from Illinois to Michigan that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 11, 2026.
This American Airlines deal was found by Cheapflights users on 7/10. 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.
Tue 8/2510:35 pm
ORD
- GRR
Nonstop1h 06m
American Airlines
Tue 9/17:33 am
GRR
- ORD
Nonstop1h 38m
American Airlines
Deal found 7/10![American Airlines logo]()
$158
This Delta deal was found by Cheapflights users on 7/10. 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 8/255:20 pm
ORD
- GRR
1 stop5h 35m
Delta
Tue 9/15:30 am
GRR
- ORD
1 stop3h 26m
Delta
Deal found 7/10![Delta logo]()
$177
This United Airlines deal was found by Cheapflights users on 7/9. 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 8/47:47 pm
ORD
- DTW
Nonstop1h 32m
United Airlines
Tue 8/1110:55 am
DTW
- ORD
Nonstop1h 29m
United Airlines
Deal found 7/9![United Airlines logo]()
$177
This Southwest deal was found by Cheapflights users on 7/10. 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.
Wed 8/58:35 am
MDW
- DTW
Nonstop1h 20m
Southwest
Thu 8/67:30 pm
DTW
- MDW
Nonstop1h 10m
Southwest
Deal found 7/10![Southwest logo]()
$177
This Kiwi.com deal was found by Cheapflights users on 7/10. 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.
Fri 8/286:17 pm
STL
- ORD
2 stops21h 42m
Frontier
Sun 8/307:05 am
ORD
- STL
1 stop10h 17m
Frontier
Deal found 7/10![Frontier logo]()
$190
This United Airlines deal was found by Cheapflights users on 7/10. 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 8/199:27 pm
ORD
- DTW
Nonstop1h 29m
United Airlines
Sat 8/227:34 am
DTW
- ORD
Nonstop1h 26m
United Airlines
Deal found 7/10![United Airlines logo]()
$177
This Delta deal was found by Cheapflights users on 7/10. 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 8/246:59 am
ORD
- DTW
Nonstop1h 24m
Delta
Mon 8/313:50 pm
DTW
- ORD
Nonstop1h 27m
Delta
Deal found 7/10![Delta logo]()
$177
This Southwest deal was found by Cheapflights users on 7/10. 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 8/138:15 am
MDW
- DTW
Nonstop1h 15m
Southwest
Mon 8/311:20 pm
DTW
- MDW
Nonstop1h 10m
Southwest
Deal found 7/10![Southwest logo]()
$177
This Delta deal was found by Cheapflights users on 7/10. 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.
Wed 8/51:59 pm
ORD
- DTW
Nonstop1h 30m
Delta
Thu 8/612:40 pm
DTW
- ORD
Nonstop1h 28m
Delta
Deal found 7/10![Delta logo]()
$177
This United Airlines deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” 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 9/93:35 pm
ORD
- DTW
Nonstop1h 30m
United Airlines
Thu 9/1010:30 am
DTW
- ORD
Nonstop1h 29m
United Airlines
Deal found 7/8![United Airlines logo]()
$177
This Southwest deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/198:35 am
MDW
- DTW
Nonstop1h 20m
Southwest
Wed 8/2612:55 pm
DTW
- MDW
Nonstop1h 10m
Southwest
Deal found 7/7![Southwest logo]()
$178
This Delta deal was found by Cheapflights users on 7/10. 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.
Wed 8/511:22 am
ORD
- DTW
Nonstop1h 31m
Delta
Sat 8/810:15 am
DTW
- ORD
Nonstop1h 27m
Delta
Deal found 7/10![Delta logo]()
$177
This Kiwi.com deal was found by Cheapflights users on 7/10. 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.
Thu 8/139:27 pm
MDW
- DTW
2 stops26h 13m
Frontier
Mon 8/316:00 am
DTW
- MDW
1 stop17h 47m
Frontier
Deal found 7/10![Frontier logo]()
$220
This Southwest deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” 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 8/293:35 pm
MDW
- DTW
Nonstop1h 05m
Southwest
Tue 9/17:10 pm
DTW
- MDW
1 stop4h 10m
Southwest
Deal found 7/8![Southwest logo]()
$187
This Delta deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” 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 9/21:59 pm
ORD
- DTW
Nonstop1h 30m
Delta
Tue 9/83:50 pm
DTW
- ORD
Nonstop1h 24m
Delta
Deal found 7/8![Delta logo]()
$177
This Kiwi.com deal was found by Cheapflights users on 7/10. 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 8/255:27 pm
STL
- ORD
2 stops26h 41m
Frontier
Tue 9/19:20 am
ORD
- STL
1 stop7h 11m
Frontier
Deal found 7/10![Frontier logo]()
$223
This Southwest deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” 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 8/171:00 pm
MDW
- DTW
Nonstop1h 10m
Southwest
Wed 8/198:45 am
DTW
- MDW
Nonstop1h 15m
Southwest
Deal found 7/7![Southwest logo]()
$190
This United Airlines deal was found by Cheapflights users on 7/9. 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 8/511:25 am
STL
- ORD
Nonstop1h 38m
United Airlines
Tue 8/1110:29 am
ORD
- STL
Nonstop1h 33m
United Airlines
Deal found 7/9![United Airlines logo]()
$213
This Delta deal was found by Cheapflights users on 7/10. 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 10/207:10 am
ORD
- GRR
1 stop5h 09m
Delta
Sat 10/241:59 pm
GRR
- ORD
1 stop3h 25m
Delta
Deal found 7/10![Delta logo]()
$189
This United Airlines deal was found by Cheapflights users on 7/10. 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 11/109:05 am
ORD
- GRR
Nonstop1h 20m
United Airlines
Wed 11/117:00 am
GRR
- ORD
Nonstop1h 22m
United Airlines
Deal found 7/10![United Airlines logo]()
$227
This Southwest deal was found by Cheapflights users on 7/10. 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.
Mon 8/242:35 pm
MDW
- DTW
2 stops6h 40m
Southwest
Mon 8/315:30 am
DTW
- MDW
1 stop5h 00m
Southwest
Deal found 7/10![Southwest logo]()
$214
This Delta deal was found by Cheapflights users on 7/10. 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 8/131:25 pm
MDW
- DTW
Nonstop1h 17m
Delta
Fri 8/216:15 pm
DTW
- MDW
Nonstop1h 18m
Delta
Deal found 7/10![Delta logo]()
$201
This Southwest deal was found by Cheapflights users on 7/9. 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 8/68:50 pm
STL
- MDW
Nonstop1h 05m
Southwest
Mon 8/105:55 am
MDW
- STL
1 stop4h 15m
Southwest
Deal found 7/9![Southwest logo]()
$223
This United Airlines deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” 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 8/17:47 pm
ORD
- DTW
Nonstop1h 32m
United Airlines
Wed 8/57:05 am
DTW
- ORD
Nonstop1h 37m
United Airlines
Deal found 7/8![United Airlines logo]()
$259
This American Airlines deal was found by Cheapflights users on 7/11. 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 8/295:00 am
STL
- TVC
1 stop5h 37m
American Airlines
Tue 9/13:11 pm
TVC
- STL
2 stops8h 44m
American Airlines
Deal found 7/11![American Airlines logo]()
$387
This Southwest deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” 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 8/136:50 pm
STL
- DTW
Nonstop1h 30m
Southwest
Mon 8/176:55 am
DTW
- STL
Nonstop1h 50m
Southwest
Deal found 7/7![Southwest logo]()
$229
This United Airlines deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” 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 8/157:58 am
ORD
- GRR
Nonstop1h 17m
United Airlines
Sat 8/224:44 pm
GRR
- ORD
Nonstop1h 21m
United Airlines
Deal found 7/6![United Airlines logo]()
$263
This Delta deal was found by Cheapflights users on 7/11. 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 8/226:59 am
ORD
- DTW
Nonstop1h 24m
Delta
Sun 8/237:25 am
DTW
- ORD
Nonstop1h 31m
Delta
Deal found 7/11![Delta logo]()
$246
This Southwest deal was found by Cheapflights users on 7/9. 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 8/2611:10 am
STL
- DTW
Nonstop1h 30m
Southwest
Mon 8/315:30 am
DTW
- STL
1 stop7h 05m
Southwest
Deal found 7/9![Southwest logo]()
$232
This United Airlines deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/205:59 am
ORD
- GRR
Nonstop1h 17m
United Airlines
Thu 8/273:52 pm
GRR
- ORD
Nonstop1h 17m
United Airlines
Deal found 7/7![United Airlines logo]()
$263
Last-minute flights from Illinois to MichiganDiscover last-minute flight deals from Illinois to Michigan. Data last updated July 11, 2026 and is based on user searches.
Discover last-minute flight deals from Illinois to Michigan. Data last updated July 11, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 7/10. 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.
Fri 7/314:57 pm
STL
- DTW
1 stop6h 43m
Frontier
Mon 8/105:35 pm
DTW
- STL
1 stop25h 02m
Frontier
Deal found 7/10![Frontier logo]()
$145
This Kiwi.com deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/314:57 pm
STL
- DTW
1 stop6h 43m
Frontier
Mon 8/35:35 pm
DTW
- STL
1 stop25h 02m
Frontier
Deal found 7/7![Frontier logo]()
$154
This Kiwi.com deal was found by Cheapflights users on 7/10. 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.
Sat 8/14:57 pm
STL
- DTW
1 stop6h 43m
Frontier
Thu 8/66:10 am
DTW
- STL
1 stop12h 27m
Frontier
Deal found 7/10![Frontier logo]()
$143
This Kiwi.com deal was found by Cheapflights users on 7/10. 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.
Sat 8/14:57 pm
STL
- DTW
1 stop6h 43m
Frontier
Fri 8/75:35 pm
DTW
- STL
1 stop16h 22m
Frontier
Deal found 7/10![Frontier logo]()
$146
This Kiwi.com deal was found by Cheapflights users on 7/10. 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.
Sat 8/14:57 pm
STL
- DTW
1 stop6h 43m
Frontier
Tue 8/46:10 am
DTW
- STL
1 stop27h 47m
Frontier
Deal found 7/10![Frontier logo]()
$155
This Kiwi.com deal was found by Cheapflights users on 7/10. 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.
Mon 8/34:57 pm
STL
- DTW
1 stop6h 43m
Frontier
Fri 8/75:35 pm
DTW
- STL
1 stop16h 22m
Frontier
Deal found 7/10![Frontier logo]()
$147
This Kiwi.com deal was found by Cheapflights users on 7/10. 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.
Mon 8/34:57 pm
STL
- DTW
1 stop6h 43m
Frontier
Sun 8/96:10 am
DTW
- STL
1 stop27h 47m
Frontier
Deal found 7/10![Frontier logo]()
$148
This Kiwi.com deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” 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 8/34:57 pm
STL
- DTW
1 stop19h 36m
Frontier
Tue 8/112:56 pm
DTW
- STL
1 stop19h 01m
Frontier
Deal found 7/7![Frontier logo]()
$156
This Kiwi.com deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” 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 8/34:57 pm
STL
- DTW
1 stop6h 43m
Frontier
Wed 8/55:13 pm
DTW
- STL
1 stop25h 24m
Frontier
Deal found 7/8![Frontier logo]()
$158
This Kiwi.com deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” 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 8/138:52 pm
ORD
- GRR
1 stop20h 20m
Multiple Airlines
Mon 8/171:26 pm
GRR
- ORD
1 stop7h 27m
Multiple Airlines
Deal found 7/8![Multiple Airlines logo]()
$151
This American Airlines deal was found by Cheapflights users on 7/10. 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.
Thu 8/1310:35 pm
ORD
- GRR
Nonstop1h 06m
American Airlines
Mon 8/176:57 pm
GRR
- ORD
Nonstop1h 32m
American Airlines
Deal found 7/10![American Airlines logo]()
$157
This Kiwi.com deal was found by Cheapflights users on 7/9. 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 8/206:17 pm
STL
- DTW
1 stop5h 47m
Frontier
Mon 8/246:00 am
DTW
- STL
1 stop12h 22m
Frontier
Deal found 7/9![Frontier logo]()
$144
One-way flights from Illinois to MichiganSearch for one-way flight options from Illinois to Michigan. Find affordable one-way fares based on user searches. Data last updated July 11, 2026.
Search for one-way flight options from Illinois to Michigan. Find affordable one-way fares based on user searches. Data last updated July 11, 2026.
This Southwest deal was found by Cheapflights users on 7/10. 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.
Wed 9/912:50 pm
STL
- MDW
Nonstop1h 05m
Southwest
Deal found 7/10![Southwest logo]()
$59
This United Airlines deal was found by Cheapflights users on 7/10. 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 9/98:00 am
STL
- ORD
Nonstop1h 34m
United Airlines
Deal found 7/10![United Airlines logo]()
$59
This Kiwi.com deal was found by Cheapflights users on 7/9. 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 8/206:00 am
ORD
- GRR
1 stop30h 01m
Multiple Airlines
Deal found 7/9![Multiple Airlines logo]()
$71
This Trip.com deal was found by Cheapflights users on 7/9. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/2410:35 am
STL
- DTW
1 stop13h 07m
Frontier
Deal found 7/9![Frontier logo]()
$73
This Kiwi.com deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” 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 8/124:57 pm
STL
- DTW
1 stop6h 43m
Frontier
Deal found 7/7![Frontier logo]()
$74
This Kiwi.com deal was found by Cheapflights users on 7/9. 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 8/68:52 pm
ORD
- GRR
1 stop20h 20m
Multiple Airlines
Deal found 7/9![Multiple Airlines logo]()
$75
This Kiwi.com deal was found by Cheapflights users on 7/10. 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.
Sun 9/66:17 pm
STL
- DTW
1 stop5h 47m
Frontier
Deal found 7/10![Frontier logo]()
$75
This Kiwi.com deal was found by Cheapflights users on 7/11. 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 9/106:50 am
ORD
- GRR
1 stop28h 56m
Multiple Airlines
Deal found 7/11![Multiple Airlines logo]()
$76
This Kiwi.com deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” 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 8/54:57 pm
STL
- DTW
1 stop19h 36m
Frontier
Deal found 7/8![Frontier logo]()
$76
This Kiwi.com deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1910:35 am
STL
- DTW
1 stop27h 04m
Frontier
Deal found 7/8![Frontier logo]()
$77
This Kiwi.com deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1010:35 am
STL
- DTW
1 stop13h 07m
Frontier
Deal found 7/7![Frontier logo]()
$78
This American Airlines deal was found by Cheapflights users on 7/10. 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 8/242:08 pm
ORD
- GRR
Nonstop1h 10m
American Airlines
Deal found 7/10![American Airlines logo]()
$79
Find flight deals from Illinois to Michigan
Keep the following information in mind while searching for Illinois to Michigan flight deals. Data was last updated July 11, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $143 (Kiwi.com) |
One-way from | $59 (Southwest) |
Popular in | March |
Cheapest in | October |
Average price | $387 |
Good round-trip deal | $118 or less |
Good one-way deal | $48 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Illinois to Michigan 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 July 11, 2026.
Use the filters below to find and compare flights from Illinois to Michigan that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
ChicagoGrand Rapids
ORD - GRR
ORDGRR
Chicago O'Hare Intl
Tue 8/25
10:35 pm-12:41 am
Nonstop1h 06m
Grand Rapids Gerald R. Ford Intl
Tue 9/1
7:33 am-8:11 am
Nonstop1h 38m
$158
ChicagoGrand Rapids
ORD - GRR
ORDGRR
Chicago O'Hare Intl
Tue 8/25
5:20 pm-11:55 pm
1 stop5h 35m
Grand Rapids Gerald R. Ford Intl
Tue 9/1
5:30 am-7:56 am
1 stop3h 26m
$177
ChicagoDetroit
ORD - DTW
ORDDTW
Chicago O'Hare Intl
Tue 8/4
7:47 pm-10:19 pm
Nonstop1h 32m
Detroit Metropolitan Wayne County
Tue 8/11
10:55 am-11:24 am
Nonstop1h 29m
$177
ChicagoDetroit
MDW - DTW
MDWDTW
Chicago Midway
Wed 8/5
8:35 am-10:55 am
Nonstop1h 20m
Detroit Metropolitan Wayne County
Thu 8/6
7:30 pm-7:40 pm
Nonstop1h 10m
$177
ChicagoDetroit
ORD - DTW
ORDDTW
Chicago O'Hare Intl
Wed 8/19
9:27 pm-11:56 pm
Nonstop1h 29m
Detroit Metropolitan Wayne County
Sat 8/22
7:34 am-8:00 am
Nonstop1h 26m
$177
ChicagoDetroit
ORD - DTW
ORDDTW
Chicago O'Hare Intl
Mon 8/24
6:59 am-9:23 am
Nonstop1h 24m
Detroit Metropolitan Wayne County
Mon 8/31
3:50 pm-4:17 pm
Nonstop1h 27m
$177
Quickest round-trip
ChicagoDetroit
MDW - DTW
MDWDTW
Chicago Midway
Thu 8/13
8:15 am-10:30 am
Nonstop1h 15m
Detroit Metropolitan Wayne County
Mon 8/31
1:20 pm-1:30 pm
Nonstop1h 10m
$177
ChicagoDetroit
ORD - DTW
ORDDTW
Chicago O'Hare Intl
Wed 8/5
1:59 pm-4:29 pm
Nonstop1h 30m
Detroit Metropolitan Wayne County
Thu 8/6
12:40 pm-1:08 pm
Nonstop1h 28m
$177
ChicagoDetroit
ORD - DTW
ORDDTW
Chicago O'Hare Intl
Wed 9/9
3:35 pm-6:05 pm
Nonstop1h 30m
Detroit Metropolitan Wayne County
Thu 9/10
10:30 am-10:59 am
Nonstop1h 29m
$177
ChicagoDetroit
ORD - DTW
ORDDTW
Chicago O'Hare Intl
Wed 8/5
11:22 am-1:53 pm
Nonstop1h 31m
Detroit Metropolitan Wayne County
Sat 8/8
10:15 am-10:42 am
Nonstop1h 27m
$177
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Illinois to Michigan
Have a flexible travel schedule? Discover the best time to fly to Michigan from Illinois with our price prediction graph.
ORD-GRR
ORD-DTW
MDW-DTW
STL-ORD
STL-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 Illinois to Michigan
USIL-USMI
ORD-GRR
ORD-DTW
MDW-DTW
STL-ORD
What is the cheapest month to book a flight from Illinois to Michigan?
Currently, October is the cheapest month in which you can book a flight from Illinois to Michigan (average of $48). Flying from Illinois to Michigan in February is currently the most expensive (average of $91). 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 MI?
Find hourly flight availability from Illinois to Michigan. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 11, 2026.
One of the essential ways to save on airfare from Illinois to Michigan is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the morning could potentially save you up to 23% on airfare.
Weekly flight availability from Illinois to Michigan
Explore weekly flight availability from Illinois to Michigan. 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 July 11, 2026.
The most flights from USIL to USMI are scheduled on a Friday (90 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (30 on average).
How much does it cost to fly round-trip from Illinois to Michigan?
How far ahead should I book a flight from Illinois to Michigan?
The best time to book flights from Illinois to Michigan is 45 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest day to fly from Illinois to Michigan?
Use this chart to determine the cheapest time to fly round-trip from Illinois to Michigan. Price data was last updated on July 4, 2026.
Travelers seeking maximum savings on their Illinois to Michigan flight should consider departing on Saturday evenings when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
Reviews of airlines servicing Michigan
Get insights into the airlines that provide service to Michigan. 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 Michigan. Reviews last updated July 11, 2026.
Read through reviews of airlines operating flights from Illinois to Michigan, such as Southwest,Delta, andContour. 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
8.1
Crew
8.6
Comfort
8.0
Entertainment
7.5
Overall
7.9
Food
7.0
Reviews
1 / 20
10.0
ExcellentSarah,Aug 2024
MDW - AUS
Boarding
8.1
Crew
8.6
Comfort
8.0
Entertainment
7.5
Overall
7.9
Food
7.0
Reviews
1 / 20
10.0
ExcellentSarah,Aug 2024
MDW - AUS
Boarding
8.1
Crew
8.6
Comfort
8.0
Entertainment
7.5
Overall
7.9
Food
7.0
Reviews
1 / 20
10.0
ExcellentSarah,Aug 2024
MDW - AUS
Boarding
8.1
Crew
8.6
Comfort
8.0
Entertainment
7.5
Overall
7.9
Food
7.0
Reviews
1 / 20
10.0
ExcellentSarah,Aug 2024
MDW - AUS
Boarding
8.1
Crew
8.6
Comfort
8.0
Entertainment
7.5
Overall
7.9
Food
7.0
Reviews
1 / 20
10.0
ExcellentSarah,Aug 2024
MDW - AUS
Boarding
8.1
Crew
8.6
Comfort
8.0
Entertainment
7.5
Overall
7.9
Food
7.0
Reviews
1 / 20
10.0
ExcellentSarah,Aug 2024
MDW - AUS
Related info for your journey
Find useful and relevant information for your journey from Illinois to Michigan. 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
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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Alternative routes for Illinois to Michigan
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Michigan by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Illinois to Michigan by cabin class
Find flights from Illinois to Michigan, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Illinois and Michigan flights
Browse other Illinois and Michigan flight options. Last updated on July 11, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Find a return flight route from Michigan
Find the right flight back to Illinois after your stay in Michigan
Illinois to Michigan flights
Consider these flights traveling from Illinois to Michigan.
Top 5 airlines flying from Illinois to Michigan
Discover the top 5 airlines that operate flights from Illinois to Michigan. 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 July 11, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$91 | Average$271 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$91 | Average$330 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$97 | Average$370 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$137 | Average$356 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$144 | Average$178 | FlexibilityNo cancel fee | On-time62% |