$70+ 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 5/8. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — DTW
Apr 27 — May 41
Round-trip
1 adult, Economy
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Find cheap flights from Illinois to Michigan with Cheapflights
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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 March 28, 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 March 28, 2026.
This Expedia deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/65:27 pm
STL
- DTW
1 stop6h 12m
Frontier
Sat 5/97:55 am
DTW
- STL
1 stop12h 28m
Frontier
Deal found 3/24![Frontier logo]()
$140
This Frontier deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/95:27 pm
STL
- DTW
1 stop6h 12m
Frontier
Sat 5/167:55 am
DTW
- STL
1 stop12h 28m
Frontier
Deal found 3/25![Frontier logo]()
$141
This Expedia deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/3011:21 am
STL
- DTW
1 stop6h 34m
Frontier
Thu 5/77:55 am
DTW
- STL
1 stop12h 28m
Frontier
Deal found 3/27![Frontier logo]()
$160
This Frontier deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/126:33 pm
STL
- DTW
1 stop5h 06m
Frontier
Tue 5/196:50 am
DTW
- STL
1 stop11h 43m
Frontier
Deal found 3/27![Frontier logo]()
$161
This Frontier deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/196:33 pm
STL
- DTW
1 stop5h 06m
Frontier
Thu 5/217:55 am
DTW
- STL
1 stop12h 28m
Frontier
Deal found 3/25![Frontier logo]()
$165
This American Airlines deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/266:54 am
ORD
- GRR
Nonstop1h 11m
American Airlines
Wed 5/276:00 am
GRR
- ORD
Nonstop1h 20m
American Airlines
Deal found 3/25![American Airlines logo]()
$169
This Delta deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” 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 5/195:19 pm
ORD
- DTW
Nonstop1h 25m
Delta
Sat 5/237:45 pm
DTW
- ORD
Nonstop1h 29m
Delta
Deal found 3/27![Delta logo]()
$178
This Southwest deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/187:50 am
MDW
- DTW
Nonstop1h 10m
Southwest
Tue 4/217:40 pm
DTW
- MDW
Nonstop1h 10m
Southwest
Deal found 3/26![Southwest logo]()
$178
This Kiwi.com deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/3011:21 am
STL
- ORD
1 stop23h 02m
Multiple Airlines
Sun 5/311:28 am
ORD
- STL
1 stop19h 22m
Multiple Airlines
Deal found 3/27![Multiple Airlines logo]()
$178
This Frontier deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/1411:07 am
ORD
- DTW
1 stop6h 00m
Frontier
Wed 4/151:37 pm
DTW
- ORD
1 stop8h 40m
Frontier
Deal found 3/27![Frontier logo]()
$180
This Frontier deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/95:27 pm
STL
- DTW
1 stop6h 12m
Frontier
Tue 5/121:31 pm
DTW
- STL
1 stop5h 02m
Frontier
Deal found 3/26![Frontier logo]()
$180
This Expedia deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/96:00 am
MDW
- DTW
1 stop7h 10m
Frontier
Tue 4/1412:33 pm
DTW
- MDW
1 stop7h 58m
Frontier
Deal found 3/26![Frontier logo]()
$180
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 March 28, 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 March 28, 2026.
This Southwest deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/196:05 pm
MDW
- DTW
Nonstop1h 10m
Southwest
Sat 5/234:05 pm
DTW
- MDW
1 stop5h 35m
Southwest
Deal found 3/27![Southwest logo]()
$188
This Delta deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” 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 6/47:00 am
ORD
- DTW
Nonstop1h 29m
Delta
Mon 6/88:00 pm
DTW
- ORD
Nonstop1h 31m
Delta
Deal found 3/26![Delta logo]()
$191
This United Airlines deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” 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 4/232:52 pm
ORD
- DTW
Nonstop1h 39m
United Airlines
Tue 4/287:18 am
DTW
- ORD
Nonstop1h 35m
United Airlines
Deal found 3/23![United Airlines logo]()
$196
This Kiwi.com deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” 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 4/178:23 pm
STL
- ORD
1 stop24h 49m
Multiple Airlines
Sun 4/194:28 pm
ORD
- STL
1 stop14h 22m
Multiple Airlines
Deal found 3/27![Multiple Airlines logo]()
$223
This Frontier deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/912:00 pm
ORD
- DTW
1 stop11h 39m
Frontier
Sun 4/122:29 pm
DTW
- ORD
1 stop9h 21m
Frontier
Deal found 3/27![Frontier logo]()
$256
This KAYAK deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” 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.
Wed 4/224:30 pm
STL
- ORD
Nonstop1h 40m
American Airlines
Thu 4/236:05 am
ORD
- STL
1 stop7h 17m
American Airlines
Deal found 3/24![American Airlines logo]()
$316
This Southwest deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/256:55 pm
STL
- MDW
Nonstop1h 10m
Southwest
Sat 5/212:45 pm
MDW
- STL
Nonstop1h 15m
Southwest
Deal found 3/26![Southwest logo]()
$191
This Delta deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” 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 5/96:45 am
STL
- DTW
Nonstop1h 34m
Delta
Sat 5/168:45 am
DTW
- STL
Nonstop1h 44m
Delta
Deal found 3/26![Delta logo]()
$213
This Southwest deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” 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 4/237:20 am
STL
- MDW
Nonstop1h 10m
Southwest
Mon 4/275:55 pm
MDW
- STL
1 stop5h 20m
Southwest
Deal found 3/26![Southwest logo]()
$201
This Delta deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/306:48 am
STL
- DTW
Nonstop1h 29m
Delta
Thu 5/78:30 pm
DTW
- STL
Nonstop1h 39m
Delta
Deal found 3/27![Delta logo]()
$213
This United Airlines deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” 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 4/168:20 pm
ORD
- TVC
Nonstop1h 20m
United Airlines
Sun 4/191:43 pm
TVC
- ORD
Nonstop1h 27m
United Airlines
Deal found 3/23![United Airlines logo]()
$239
This Southwest deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/1610:35 am
STL
- MDW
1 stop6h 40m
Southwest
Mon 5/184:00 pm
MDW
- STL
1 stop4h 55m
Southwest
Deal found 3/28![Southwest logo]()
$211
This Delta deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/231:36 pm
ORD
- GRR
1 stop4h 48m
Delta
Sat 4/255:29 am
GRR
- ORD
1 stop3h 32m
Delta
Deal found 3/25![Delta logo]()
$223
This United Airlines deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/64:29 pm
ORD
- DTW
Nonstop1h 31m
United Airlines
Sat 5/96:00 am
DTW
- ORD
Nonstop1h 35m
United Airlines
Deal found 3/26![United Airlines logo]()
$248
This Southwest deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/99:55 am
STL
- DTW
1 stop5h 15m
Southwest
Sat 5/163:40 pm
DTW
- STL
Nonstop1h 40m
Southwest
Deal found 3/26![Southwest logo]()
$223
This Delta deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/236:38 pm
MDW
- DTW
Nonstop1h 15m
Delta
Thu 4/308:25 am
DTW
- MDW
Nonstop1h 22m
Delta
Deal found 3/25![Delta logo]()
$227
This United Airlines deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/169:40 pm
ORD
- GRR
Nonstop1h 15m
United Airlines
Tue 5/196:35 pm
GRR
- ORD
Nonstop1h 15m
United Airlines
Deal found 3/26![United Airlines logo]()
$250
This Delta deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2011:00 am
ORD
- DTW
Nonstop1h 24m
Delta
Thu 4/2312:17 pm
DTW
- ORD
Nonstop1h 28m
Delta
Deal found 3/24![Delta logo]()
$229
This Southwest deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/215:45 am
STL
- ORD
1 stop5h 25m
Southwest
Tue 5/52:40 pm
ORD
- STL
1 stop4h 35m
Southwest
Deal found 3/22![Southwest logo]()
$234
This United Airlines deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/99:40 pm
ORD
- GRR
Nonstop1h 15m
United Airlines
Sun 5/109:00 am
GRR
- ORD
Nonstop1h 10m
United Airlines
Deal found 3/24![United Airlines logo]()
$259
This Delta deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” 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 5/206:57 pm
STL
- ORD
1 stop5h 02m
Delta
Wed 5/277:07 am
ORD
- STL
1 stop5h 13m
Delta
Deal found 3/24![Delta logo]()
$233
This United Airlines deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” 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 6/47:20 am
ORD
- DTW
Nonstop1h 32m
United Airlines
Sun 6/78:50 am
DTW
- ORD
Nonstop1h 32m
United Airlines
Deal found 3/24![United Airlines logo]()
$261
This Southwest deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/77:50 am
MDW
- DTW
1 stop5h 30m
Southwest
Thu 5/141:00 pm
DTW
- MDW
Nonstop1h 10m
Southwest
Deal found 3/23![Southwest logo]()
$239
This Delta deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/211:02 pm
STL
- ORD
1 stop7h 14m
Delta
Tue 5/55:15 am
ORD
- STL
1 stop5h 19m
Delta
Deal found 3/25![Delta logo]()
$233
This United Airlines deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/94:46 pm
ORD
- GRR
Nonstop1h 19m
United Airlines
Thu 7/162:10 pm
GRR
- ORD
Nonstop1h 09m
United Airlines
Deal found 3/23![United Airlines logo]()
$263
This Southwest deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2210:10 am
MDW
- DTW
2 stops7h 10m
Southwest
Wed 4/291:20 pm
DTW
- MDW
2 stops7h 05m
Southwest
Deal found 3/25![Southwest logo]()
$240
This Kiwi.com deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/166:20 am
MDW
- TVC
1 stop13h 47m
Multiple Airlines
Sun 4/199:57 pm
TVC
- MDW
1 stop18h 07m
Multiple Airlines
Deal found 3/23![Multiple Airlines logo]()
$450
This United Airlines deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” 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 7/89:45 pm
ORD
- GRR
Nonstop1h 12m
United Airlines
Thu 7/99:20 pm
GRR
- ORD
Nonstop1h 25m
United Airlines
Deal found 3/27![United Airlines logo]()
$263
This Delta deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” 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 5/227:00 pm
ORD
- DTW
Nonstop1h 29m
Delta
Tue 5/2610:00 am
DTW
- ORD
Nonstop1h 29m
Delta
Deal found 3/27![Delta logo]()
$243
This Southwest deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” 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 4/167:05 pm
MDW
- DTW
Nonstop1h 05m
Southwest
Mon 4/208:15 pm
DTW
- MDW
1 stop3h 30m
Southwest
Deal found 3/24![Southwest logo]()
$259
Last-minute flights from Illinois to MichiganDiscover last-minute flight deals from Illinois to Michigan. Data last updated March 28, 2026 and is based on user searches.
Discover last-minute flight deals from Illinois to Michigan. Data last updated March 28, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/711:21 am
STL
- MDW
1 stop8h 46m
Frontier
Thu 4/96:00 am
MDW
- STL
1 stop11h 34m
Frontier
Deal found 3/23![Frontier logo]()
$180
This Frontier deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” 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 4/84:59 pm
STL
- ORD
1 stop6h 37m
Frontier
Fri 4/105:05 pm
ORD
- STL
1 stop6h 53m
Frontier
Deal found 3/23![Frontier logo]()
$180
This Expedia deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/96:00 am
MDW
- DTW
1 stop7h 10m
Frontier
Tue 4/1412:33 pm
DTW
- MDW
1 stop7h 58m
Frontier
Deal found 3/26![Frontier logo]()
$180
This Expedia deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/108:16 pm
STL
- DTW
1 stop13h 42m
Frontier
Sun 4/129:02 pm
DTW
- STL
1 stop11h 49m
Frontier
Deal found 3/24![Frontier logo]()
$180
This Frontier deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/1411:07 am
ORD
- DTW
1 stop6h 00m
Frontier
Wed 4/151:37 pm
DTW
- ORD
1 stop8h 40m
Frontier
Deal found 3/27![Frontier logo]()
$180
This Frontier deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” 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 4/158:23 pm
STL
- DTW
1 stop11h 42m
Frontier
Wed 4/222:20 pm
DTW
- STL
1 stop9h 59m
Frontier
Deal found 3/24![Frontier logo]()
$181
This Travelocity deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” 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.
Thu 4/1611:25 am
STL
- DTW
1 stop6h 21m
Frontier
Sat 4/1811:26 am
DTW
- STL
1 stop12h 53m
Frontier
Deal found 3/25![Frontier logo]()
$140
This Frontier deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” 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.
Fri 4/1712:42 pm
ORD
- DTW
1 stop6h 22m
Frontier
Sun 4/1910:27 pm
DTW
- ORD
1 stop12h 23m
Frontier
Deal found 3/27![Frontier logo]()
$181
This Southwest deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/187:50 am
MDW
- DTW
Nonstop1h 10m
Southwest
Tue 4/217:40 pm
DTW
- MDW
Nonstop1h 10m
Southwest
Deal found 3/26![Southwest logo]()
$178
This American Airlines deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” 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 4/228:56 pm
ORD
- GRR
Nonstop1h 11m
American Airlines
Wed 4/295:00 am
GRR
- ORD
Nonstop1h 11m
American Airlines
Deal found 3/25![American Airlines logo]()
$169
This Expedia deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/3011:21 am
STL
- DTW
1 stop6h 34m
Frontier
Thu 5/77:55 am
DTW
- STL
1 stop12h 28m
Frontier
Deal found 3/27![Frontier logo]()
$160
This Kiwi.com deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/3011:21 am
STL
- ORD
1 stop23h 02m
Multiple Airlines
Sun 5/311:28 am
ORD
- STL
1 stop19h 22m
Multiple Airlines
Deal found 3/27![Multiple Airlines logo]()
$178
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 March 28, 2026.
Search for one-way flight options from Illinois to Michigan. Find affordable one-way fares based on user searches. Data last updated March 28, 2026.
This Frontier deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” 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.
Fri 5/85:27 pm
STL
- DTW
1 stop6h 12m
Frontier
Deal found 3/27![Frontier logo]()
$70
This Frontier deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” 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.
Fri 4/249:58 pm
STL
- ORD
1 stop8h 10m
Frontier
Deal found 3/24![Frontier logo]()
$70
This Frontier deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” 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.
Fri 5/17:01 pm
STL
- ORD
1 stop5h 51m
Frontier
Deal found 3/24![Frontier logo]()
$71
This Frontier deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” 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 4/228:23 pm
STL
- DTW
1 stop11h 42m
Frontier
Deal found 3/25![Frontier logo]()
$76
This Frontier deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/1611:25 am
STL
- MDW
1 stop8h 06m
Frontier
Deal found 3/25![Frontier logo]()
$76
This Expedia deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/1611:25 am
STL
- ORD
1 stop11h 14m
Frontier
Deal found 3/25![Frontier logo]()
$76
This Kiwi.com deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” 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 5/287:52 pm
ORD
- GRR
1 stop22h 19m
Multiple Airlines
Deal found 3/27![Multiple Airlines logo]()
$82
This United Airlines deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/264:46 pm
ORD
- GRR
Nonstop1h 19m
United Airlines
Deal found 3/25![United Airlines logo]()
$85
This Kiwi.com deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” 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 5/188:08 pm
STL
- ORD
1 stop24h 29m
Frontier
Deal found 3/25![Frontier logo]()
$88
This Super.com deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” 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 4/95:15 am
ORD
- DTW
1 stop7h 55m
Frontier
Deal found 3/26![Frontier logo]()
$89
This Kiwi.com deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” 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 4/278:23 pm
STL
- DTW
1 stop20h 44m
Frontier
Deal found 3/27![Frontier logo]()
$89
This Super.com deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” 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 4/96:00 am
MDW
- DTW
1 stop7h 10m
Frontier
Deal found 3/26![Frontier logo]()
$89
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 March 28, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $140 (Expedia) |
One-way from | $70 (Frontier) |
Popular in | February |
Cheapest in | May |
Average price | $405 |
Good round-trip deal | $93 or less |
Good one-way deal | $69 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 March 28, 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
ChicagoDetroit
MDW - DTW
MDWDTW
Chicago Midway
Tue 5/19
6:05 pm-8:15 pm
Nonstop1h 10m
Detroit Metropolitan Wayne County
Sat 5/23
4:05 pm-8:40 pm
1 stop5h 35m
$188
ChicagoDetroit
ORD - DTW
ORDDTW
Chicago O'Hare Intl
Thu 6/4
7:00 am-9:29 am
Nonstop1h 29m
Detroit Metropolitan Wayne County
Mon 6/8
8:00 pm-8:31 pm
Nonstop1h 31m
$191
Quickest round-trip
St. LouisChicago
STL - MDW
STLMDW
Lambert-St Louis
Sat 4/25
6:55 pm-8:05 pm
Nonstop1h 10m
Chicago Midway
Sat 5/2
12:45 pm-2:00 pm
Nonstop1h 15m
$191
ChicagoDetroit
ORD - DTW
ORDDTW
Chicago O'Hare Intl
Thu 4/23
2:52 pm-5:31 pm
Nonstop1h 39m
Detroit Metropolitan Wayne County
Tue 4/28
7:18 am-7:53 am
Nonstop1h 35m
$196
St. LouisChicago
STL - MDW
STLMDW
Lambert-St Louis
Thu 4/23
7:20 am-8:30 am
Nonstop1h 10m
Chicago Midway
Mon 4/27
5:55 pm-11:15 pm
1 stop5h 20m
$201
St. LouisChicago
STL - MDW
STLMDW
Lambert-St Louis
Sat 5/16
10:35 am-5:15 pm
1 stop6h 40m
Chicago Midway
Mon 5/18
4:00 pm-8:55 pm
1 stop4h 55m
$211
St. LouisDetroit
STL - DTW
STLDTW
Lambert-St Louis
Sat 5/9
6:45 am-9:19 am
Nonstop1h 34m
Detroit Metropolitan Wayne County
Sat 5/16
8:45 am-9:29 am
Nonstop1h 44m
$213
St. LouisDetroit
STL - DTW
STLDTW
Lambert-St Louis
Thu 4/30
6:48 am-9:17 am
Nonstop1h 29m
Detroit Metropolitan Wayne County
Thu 5/7
8:30 pm-9:09 pm
Nonstop1h 39m
$213
St. LouisChicago
STL - ORD
STLORD
Lambert-St Louis
Fri 4/17
8:23 pm-9:12 pm
1 stop24h 49m
Chicago O'Hare Intl
Sun 4/19
4:28 pm-6:50 am
1 stop14h 22m
$223
ChicagoGrand Rapids
ORD - GRR
ORDGRR
Chicago O'Hare Intl
Thu 4/23
1:36 pm-7:24 pm
1 stop4h 48m
Grand Rapids Gerald R. Ford Intl
Sat 4/25
5:29 am-8:01 am
1 stop3h 32m
$223
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.
STL-DTW
ORD-GRR
MDW-DTW
STL-ORD
ORD-DTW
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
STL-DTW
ORD-GRR
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 $78). Flying from Illinois to Michigan in March is currently the most expensive (average of $165). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from 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 March 28, 2026.
One of the essential ways to save on airfare from Illinois to Michigan is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the morning could potentially save you up to 23% on airfare.
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 March 28, 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. Tuesday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
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 March 28, 2026.
The most flights from USIL to USMI are scheduled on a Friday (71 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (17 on average).
How much does it cost to fly round-trip from Illinois to Michigan?
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 March 28, 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.
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Food
7.0
Overall
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Food
7.0
Overall
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Food
7.0
Overall
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Food
7.0
Overall
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Food
7.0
Overall
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Food
7.0
Overall
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
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 March 28, 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 March 28, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$91 | Average$328 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$91 | Average$298 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$97 | Average$277 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$133 | Average$326 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$144 | Average$178 | FlexibilityNo cancel fee | On-time62% |