$63+ 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 6/1. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — DTW
Jun 5 — Jun 121
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 May 6, 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 May 6, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” 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 7/224:52 pm
STL
- DTW
1 stop6h 48m
Frontier
Sat 7/252:54 pm
DTW
- STL
1 stop27h 43m
Frontier
Deal found 5/5![Frontier logo]()
$124
This Kiwi.com deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” 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 7/64:52 pm
STL
- DTW
1 stop6h 48m
Frontier
Sun 7/122:02 pm
DTW
- STL
1 stop19h 55m
Frontier
Deal found 5/4![Frontier logo]()
$152
This Kiwi.com deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” 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 6/26:33 pm
STL
- DTW
1 stop5h 06m
Frontier
Tue 6/96:54 pm
DTW
- STL
1 stop14h 53m
Frontier
Deal found 5/5![Frontier logo]()
$154
This American Airlines deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/33:01 pm
ORD
- GRR
Nonstop1h 12m
American Airlines
Wed 6/106:00 am
GRR
- ORD
Nonstop1h 13m
American Airlines
Deal found 5/2![American Airlines logo]()
$157
This Kiwi.com deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” 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 6/55:27 pm
STL
- DTW
1 stop19h 15m
Frontier
Thu 6/112:02 pm
DTW
- STL
1 stop19h 50m
Frontier
Deal found 5/5![Frontier logo]()
$158
This Kiwi.com deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” 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 6/216:31 pm
STL
- DTW
1 stop21h 22m
Frontier
Thu 6/252:02 pm
DTW
- STL
1 stop19h 50m
Frontier
Deal found 5/5![Frontier logo]()
$160
This Kiwi.com deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” 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 5/286:33 pm
STL
- DTW
1 stop5h 05m
Frontier
Mon 6/16:05 pm
DTW
- STL
1 stop24h 28m
Frontier
Deal found 5/4![Frontier logo]()
$163
This American Airlines deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/310:30 pm
ORD
- GRR
Nonstop1h 00m
American Airlines
Thu 6/48:02 pm
GRR
- ORD
Nonstop1h 38m
American Airlines
Deal found 5/3![American Airlines logo]()
$174
This Delta deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” 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 6/911:30 am
ORD
- GRR
1 stop4h 44m
Delta
Wed 6/102:48 pm
GRR
- ORD
1 stop4h 41m
Delta
Deal found 5/4![Delta logo]()
$177
This Delta deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/93:55 pm
ORD
- GRR
1 stop7h 04m
Delta
Wed 7/15:30 am
GRR
- ORD
2 stops7h 01m
Delta
Deal found 5/2![Delta logo]()
$182
This American Airlines deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” 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 8/244:17 pm
ORD
- GRR
Nonstop1h 05m
American Airlines
Wed 8/266:47 am
GRR
- ORD
Nonstop1h 19m
American Airlines
Deal found 5/5![American Airlines logo]()
$184
This Delta deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/234:00 pm
STL
- MDW
1 stop5h 09m
Delta
Tue 5/269:22 am
MDW
- STL
1 stop3h 48m
Delta
Deal found 5/1![Delta logo]()
$184
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 May 6, 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 May 6, 2026.
This Delta deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/32:00 pm
ORD
- GRR
1 stop5h 45m
Delta
Wed 6/105:55 pm
GRR
- ORD
1 stop3h 36m
Delta
Deal found 5/3![Delta logo]()
$177
This Southwest deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/236:55 pm
STL
- MDW
Nonstop1h 10m
Southwest
Tue 5/261:25 pm
MDW
- STL
1 stop6h 30m
Southwest
Deal found 5/1![Southwest logo]()
$201
This United Airlines deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” 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 6/21:13 pm
STL
- ORD
Nonstop1h 30m
United Airlines
Wed 6/310:40 am
ORD
- STL
Nonstop1h 31m
United Airlines
Deal found 5/5![United Airlines logo]()
$207
This American Airlines deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/510:35 pm
ORD
- FNT
Nonstop1h 14m
American Airlines
Tue 6/95:36 pm
FNT
- ORD
Nonstop1h 38m
American Airlines
Deal found 5/2![American Airlines logo]()
$239
This Delta deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/67:00 am
ORD
- GRR
1 stop3h 18m
Delta
Tue 6/302:00 pm
GRR
- ORD
1 stop3h 26m
Delta
Deal found 5/2![Delta logo]()
$194
This Southwest deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” 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 10/110:15 am
STL
- DTW
Nonstop1h 30m
Southwest
Tue 10/67:00 pm
DTW
- STL
Nonstop1h 35m
Southwest
Deal found 5/4![Southwest logo]()
$211
This Delta deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/271:22 pm
MDW
- DTW
Nonstop1h 13m
Delta
Fri 5/296:19 pm
DTW
- MDW
Nonstop1h 14m
Delta
Deal found 5/1![Delta logo]()
$196
This United Airlines deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/93:35 pm
ORD
- GRR
Nonstop1h 08m
United Airlines
Wed 6/107:15 am
GRR
- ORD
Nonstop1h 13m
United Airlines
Deal found 5/3![United Airlines logo]()
$227
This Southwest deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/288:25 am
STL
- ORD
1 stop7h 05m
Southwest
Mon 6/14:15 pm
ORD
- STL
1 stop8h 00m
Southwest
Deal found 5/3![Southwest logo]()
$211
This Delta deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” 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 6/2310:20 am
STL
- DTW
Nonstop1h 35m
Delta
Tue 6/304:41 pm
DTW
- STL
Nonstop1h 42m
Delta
Deal found 5/4![Delta logo]()
$197
This American Airlines deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/3110:27 pm
ORD
- FNT
Nonstop1h 16m
American Airlines
Sun 6/75:36 pm
FNT
- ORD
Nonstop1h 38m
American Airlines
Deal found 5/1![American Airlines logo]()
$239
This Southwest deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/282:40 pm
ORD
- DTW
1 stop6h 40m
Southwest
Mon 6/16:00 am
DTW
- ORD
1 stop7h 50m
Southwest
Deal found 5/3![Southwest logo]()
$216
This American Airlines deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/132:46 pm
ORD
- FNT
Nonstop1h 20m
American Airlines
Sun 6/145:36 pm
FNT
- ORD
Nonstop1h 38m
American Airlines
Deal found 5/3![American Airlines logo]()
$239
This United Airlines deal was found by Cheapflights users on 5/6. 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.
Thu 6/49:29 pm
ORD
- DTW
Nonstop1h 28m
United Airlines
Thu 6/116:00 am
DTW
- ORD
Nonstop1h 26m
United Airlines
Deal found 5/6![United Airlines logo]()
$243
This Delta deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/287:05 am
STL
- MDW
1 stop4h 51m
Delta
Mon 6/16:23 am
MDW
- STL
1 stop5h 57m
Delta
Deal found 5/3![Delta logo]()
$211
This Southwest deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” 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 6/307:45 am
MDW
- DTW
Nonstop1h 15m
Southwest
Mon 7/138:30 pm
DTW
- MDW
Nonstop1h 10m
Southwest
Deal found 5/4![Southwest logo]()
$216
This American Airlines deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/32:59 pm
ORD
- FNT
Nonstop1h 21m
American Airlines
Mon 6/85:36 pm
FNT
- ORD
Nonstop1h 38m
American Airlines
Deal found 5/1![American Airlines logo]()
$239
This United Airlines deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” 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 5/277:05 am
ORD
- GRR
Nonstop1h 17m
United Airlines
Thu 5/288:00 pm
GRR
- ORD
Nonstop1h 28m
United Airlines
Deal found 5/5![United Airlines logo]()
$250
This Delta deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/47:01 pm
STL
- ORD
1 stop4h 58m
Delta
Mon 6/85:30 am
ORD
- STL
1 stop7h 04m
Delta
Deal found 5/1![Delta logo]()
$211
This American Airlines deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/182:46 pm
ORD
- FNT
Nonstop1h 20m
American Airlines
Mon 6/225:30 am
FNT
- ORD
Nonstop1h 23m
American Airlines
Deal found 5/3![American Airlines logo]()
$239
This Southwest deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/287:20 am
STL
- MDW
Nonstop1h 10m
Southwest
Mon 6/19:00 am
MDW
- STL
Nonstop1h 15m
Southwest
Deal found 5/3![Southwest logo]()
$226
This Delta deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/237:05 pm
STL
- ORD
1 stop5h 02m
Delta
Mon 5/252:11 pm
ORD
- STL
1 stop10h 19m
Delta
Deal found 5/1![Delta logo]()
$211
This United Airlines deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/255:29 pm
STL
- ORD
Nonstop1h 31m
United Airlines
Thu 5/282:20 pm
ORD
- STL
Nonstop1h 26m
United Airlines
Deal found 5/1![United Airlines logo]()
$257
This American Airlines deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/292:48 pm
ORD
- FNT
Nonstop1h 21m
American Airlines
Sun 5/315:30 am
FNT
- ORD
Nonstop1h 26m
American Airlines
Deal found 5/1![American Airlines logo]()
$239
This Southwest deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/47:55 pm
STL
- DTW
Nonstop1h 30m
Southwest
Mon 6/85:45 pm
DTW
- STL
2 stops6h 00m
Southwest
Deal found 5/2![Southwest logo]()
$228
This Delta deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/307:05 pm
STL
- ORD
1 stop4h 58m
Delta
Sat 6/61:44 pm
ORD
- STL
2 stops9h 37m
Delta
Deal found 5/3![Delta logo]()
$216
This American Airlines deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” 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 7/32:49 pm
ORD
- FNT
Nonstop1h 21m
American Airlines
Wed 7/85:40 pm
FNT
- ORD
Nonstop1h 38m
American Airlines
Deal found 5/5![American Airlines logo]()
$239
This United Airlines deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/149:32 pm
ORD
- TVC
Nonstop1h 27m
United Airlines
Sun 6/217:15 am
TVC
- ORD
Nonstop1h 27m
United Airlines
Deal found 5/1![United Airlines logo]()
$273
This Southwest deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” 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 6/104:00 pm
STL
- MDW
Nonstop1h 05m
Southwest
Mon 6/151:00 pm
MDW
- STL
Nonstop1h 10m
Southwest
Deal found 5/4![Southwest logo]()
$237
This American Airlines deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” 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 6/1210:35 pm
ORD
- FNT
Nonstop1h 14m
American Airlines
Sun 6/145:36 pm
FNT
- ORD
Nonstop1h 38m
American Airlines
Deal found 5/5![American Airlines logo]()
$239
Last-minute flights from Illinois to MichiganDiscover last-minute flight deals from Illinois to Michigan. Data last updated May 6, 2026 and is based on user searches.
Discover last-minute flight deals from Illinois to Michigan. Data last updated May 6, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/234:00 pm
STL
- MDW
1 stop5h 09m
Delta
Tue 5/269:22 am
MDW
- STL
1 stop3h 48m
Delta
Deal found 5/1![Delta logo]()
$184
This Delta deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/234:00 pm
STL
- ORD
1 stop5h 46m
Delta
Tue 5/265:41 pm
ORD
- STL
1 stop5h 40m
Delta
Deal found 5/1![Delta logo]()
$184
This Kiwi.com deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” 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 5/286:33 pm
STL
- DTW
1 stop5h 05m
Frontier
Mon 6/16:05 pm
DTW
- STL
1 stop24h 28m
Frontier
Deal found 5/4![Frontier logo]()
$163
This Kiwi.com deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” 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 6/26:33 pm
STL
- DTW
1 stop5h 06m
Frontier
Tue 6/96:54 pm
DTW
- STL
1 stop14h 53m
Frontier
Deal found 5/5![Frontier logo]()
$154
This American Airlines deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/33:01 pm
ORD
- GRR
Nonstop1h 12m
American Airlines
Wed 6/106:00 am
GRR
- ORD
Nonstop1h 13m
American Airlines
Deal found 5/2![American Airlines logo]()
$157
This American Airlines deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/310:30 pm
ORD
- GRR
Nonstop1h 00m
American Airlines
Thu 6/48:02 pm
GRR
- ORD
Nonstop1h 38m
American Airlines
Deal found 5/3![American Airlines logo]()
$174
This Kiwi.com deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” 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 6/55:27 pm
STL
- DTW
1 stop19h 15m
Frontier
Thu 6/112:02 pm
DTW
- STL
1 stop19h 50m
Frontier
Deal found 5/5![Frontier logo]()
$158
This Travelocity deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/68:08 pm
STL
- DTW
1 stop26h 51m
Frontier
Wed 6/108:00 am
DTW
- STL
1 stop12h 23m
Frontier
Deal found 5/2![Frontier logo]()
$185
This Delta deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/86:00 am
STL
- MDW
1 stop6h 05m
Delta
Wed 6/101:26 pm
MDW
- STL
2 stops9h 57m
Delta
Deal found 5/2![Delta logo]()
$189
This Delta deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” 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 6/911:30 am
ORD
- GRR
1 stop4h 44m
Delta
Wed 6/102:48 pm
GRR
- ORD
1 stop4h 41m
Delta
Deal found 5/4![Delta logo]()
$177
This Delta deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/93:55 pm
ORD
- GRR
1 stop7h 04m
Delta
Wed 7/15:30 am
GRR
- ORD
2 stops7h 01m
Delta
Deal found 5/2![Delta logo]()
$182
This Kiwi.com deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” 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 6/216:31 pm
STL
- DTW
1 stop21h 22m
Frontier
Thu 6/252:02 pm
DTW
- STL
1 stop19h 50m
Frontier
Deal found 5/5![Frontier logo]()
$160
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 May 6, 2026.
Search for one-way flight options from Illinois to Michigan. Find affordable one-way fares based on user searches. Data last updated May 6, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” 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 6/15:27 pm
STL
- DTW
1 stop6h 12m
Frontier
Deal found 5/4![Frontier logo]()
$63
This Kiwi.com deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” 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 6/155:06 pm
STL
- DTW
1 stop19h 01m
Frontier
Deal found 5/4![Frontier logo]()
$65
This Kiwi.com deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” 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 5/275:27 pm
STL
- MDW
1 stop17h 45m
Frontier
Deal found 5/5![Frontier logo]()
$67
This Kiwi.com deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” 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 5/275:27 pm
STL
- ORD
1 stop14h 28m
Frontier
Deal found 5/5![Frontier logo]()
$67
This Delta deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/267:00 pm
ORD
- DTW
Nonstop1h 29m
Delta
Deal found 5/1![Delta logo]()
$69
This Kiwi.com deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/275:27 pm
STL
- DTW
1 stop6h 12m
Frontier
Deal found 5/1![Frontier logo]()
$69
This Delta deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” 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 6/101:26 pm
MDW
- DTW
Nonstop1h 18m
Delta
Deal found 5/5![Delta logo]()
$69
This Southwest deal was found by Cheapflights users on 5/6. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/21:45 pm
STL
- MDW
Nonstop1h 10m
Southwest
Deal found 5/6![Southwest logo]()
$69
This United Airlines deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/176:00 am
STL
- ORD
Nonstop1h 30m
United Airlines
Deal found 5/4![United Airlines logo]()
$69
This Kiwi.com deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” 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 6/31:29 pm
ORD
- DTW
1 stop10h 10m
Frontier
Deal found 5/4![Frontier logo]()
$70
This Kiwi.com deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” 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 6/312:04 pm
MDW
- DTW
1 stop11h 35m
Frontier
Deal found 5/5![Frontier logo]()
$70
This Kiwi.com deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” 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 6/15:27 pm
STL
- MDW
1 stop17h 45m
Frontier
Deal found 5/5![Frontier logo]()
$70
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 May 6, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $124 (Kiwi.com) |
One-way from | $63 (Kiwi.com) |
Popular in | March |
Cheapest in | May |
Average price | $209 |
Good round-trip deal | $78 or less |
Good one-way deal | $39 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 May 6, 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
Wed 6/3
2:00 pm-8:45 pm
1 stop5h 45m
Grand Rapids Gerald R. Ford Intl
Wed 6/10
5:55 pm-8:31 pm
1 stop3h 36m
$177
ChicagoGrand Rapids
ORD - GRR
ORDGRR
Chicago O'Hare Intl
Sat 6/6
7:00 am-11:18 am
1 stop3h 18m
Grand Rapids Gerald R. Ford Intl
Tue 6/30
2:00 pm-4:26 pm
1 stop3h 26m
$194
ChicagoDetroit
MDW - DTW
MDWDTW
Chicago Midway
Wed 5/27
1:22 pm-3:35 pm
Nonstop1h 13m
Detroit Metropolitan Wayne County
Fri 5/29
6:19 pm-6:33 pm
Nonstop1h 14m
$196
St. LouisDetroit
STL - DTW
STLDTW
Lambert-St Louis
Tue 6/23
10:20 am-12:55 pm
Nonstop1h 35m
Detroit Metropolitan Wayne County
Tue 6/30
4:41 pm-5:23 pm
Nonstop1h 42m
$197
St. LouisChicago
STL - MDW
STLMDW
Lambert-St Louis
Sat 5/23
6:55 pm-8:05 pm
Nonstop1h 10m
Chicago Midway
Tue 5/26
1:25 pm-7:55 pm
1 stop6h 30m
$201
St. LouisChicago
STL - ORD
STLORD
Lambert-St Louis
Tue 6/2
1:13 pm-2:43 pm
Nonstop1h 30m
Chicago O'Hare Intl
Wed 6/3
10:40 am-12:11 pm
Nonstop1h 31m
$207
St. LouisDetroit
STL - DTW
STLDTW
Lambert-St Louis
Thu 10/1
10:15 am-12:45 pm
Nonstop1h 30m
Detroit Metropolitan Wayne County
Tue 10/6
7:00 pm-7:35 pm
Nonstop1h 35m
$211
St. LouisChicago
STL - ORD
STLORD
Lambert-St Louis
Thu 5/28
8:25 am-3:30 pm
1 stop7h 05m
Chicago O'Hare Intl
Mon 6/1
4:15 pm-12:15 am
1 stop8h 00m
$211
St. LouisChicago
STL - MDW
STLMDW
Lambert-St Louis
Thu 5/28
7:05 am-11:56 am
1 stop4h 51m
Chicago Midway
Mon 6/1
6:23 am-12:20 pm
1 stop5h 57m
$211
St. LouisChicago
STL - ORD
STLORD
Lambert-St Louis
Thu 6/4
7:01 pm-11:59 pm
1 stop4h 58m
Chicago O'Hare Intl
Mon 6/8
5:30 am-12:34 pm
1 stop7h 04m
$211
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
STL-MDW
STL-ORD
ORD-FNT
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
STL-MDW
STL-ORD
How far ahead should I book a flight from Illinois to Michigan?
The best time to book flights from Illinois to Michigan is 50 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 month to book a flight from Illinois to Michigan?
Currently, May 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 May 6, 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 25% 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 May 2, 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. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Weekly flight availability from Illinois to 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 May 6, 2026.
The most flights from USIL to USMI are scheduled on a Tuesday (93 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (37 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 May 6, 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.
Food
7.0
Comfort
8.0
Crew
8.6
Overall
7.9
Boarding
8.1
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Food
7.0
Comfort
8.0
Crew
8.6
Overall
7.9
Boarding
8.1
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Food
7.0
Comfort
8.0
Crew
8.6
Overall
7.9
Boarding
8.1
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Food
7.0
Comfort
8.0
Crew
8.6
Overall
7.9
Boarding
8.1
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Food
7.0
Comfort
8.0
Crew
8.6
Overall
7.9
Boarding
8.1
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Food
7.0
Comfort
8.0
Crew
8.6
Overall
7.9
Boarding
8.1
Entertainment
7.5
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 May 6, 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 May 6, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$91 | Average$327 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$91 | Average$318 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$97 | Average$313 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$133 | Average$335 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$144 | Average$178 | FlexibilityNo cancel fee | On-time62% |