$43+ 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 3/21. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — DTW
Mar 18 — Mar 251
1 adult, Economy
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Find cheap flights from Illinois to Michigan with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Illinois to Michigan
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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 February 16, 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 February 16, 2026.
This American Airlines deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/1710:15 pm
ORD
- GRR
Nonstop0h 59m
American Airlines
Tue 3/246:00 am
GRR
- ORD
Nonstop1h 14m
American Airlines
Deal found 2/15![American Airlines logo]()
$95
This American Airlines deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/3110:15 pm
ORD
- GRR
Nonstop0h 59m
American Airlines
Tue 4/75:43 am
GRR
- ORD
Nonstop1h 21m
American Airlines
Deal found 2/13![American Airlines logo]()
$96
This American Airlines deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” 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 3/1610:15 pm
ORD
- GRR
Nonstop0h 59m
American Airlines
Mon 3/237:00 am
GRR
- ORD
Nonstop1h 19m
American Airlines
Deal found 2/16![American Airlines logo]()
$157
This Priceline deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/21:54 pm
STL
- DTW
1 stop9h 01m
Frontier
Wed 3/48:30 am
DTW
- STL
1 stop8h 23m
Frontier
Deal found 2/16![Frontier logo]()
$160
This American Airlines deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/108:15 am
ORD
- GRR
Nonstop1h 02m
American Airlines
Thu 3/127:42 pm
GRR
- ORD
Nonstop1h 14m
American Airlines
Deal found 2/13![American Airlines logo]()
$164
This American Airlines deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/107:14 am
ORD
- GRR
Nonstop1h 10m
American Airlines
Sun 4/125:34 am
GRR
- ORD
Nonstop1h 16m
American Airlines
Deal found 2/13![American Airlines logo]()
$165
This Kiwi.com deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/208:13 pm
STL
- DTW
1 stop14h 18m
Frontier
Wed 4/225:09 pm
DTW
- STL
1 stop18h 21m
Frontier
Deal found 2/12![Frontier logo]()
$167
This Expedia deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/278:22 pm
STL
- DTW
1 stop11h 10m
Frontier
Mon 3/26:08 pm
DTW
- STL
1 stop6h 51m
Frontier
Deal found 2/14![Frontier logo]()
$170
This American Airlines deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/67:30 am
ORD
- DTW
Nonstop1h 26m
American Airlines
Mon 3/95:45 am
DTW
- ORD
Nonstop1h 25m
American Airlines
Deal found 2/15![American Airlines logo]()
$171
This American Airlines deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/1210:10 pm
ORD
- DTW
Nonstop1h 21m
American Airlines
Sun 3/155:45 am
DTW
- ORD
Nonstop1h 25m
American Airlines
Deal found 2/15![American Airlines logo]()
$172
This Kiwi.com deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/155:01 am
ORD
- DTW
1 stop26h 06m
Multiple Airlines
Fri 3/2011:34 am
DTW
- ORD
1 stop13h 48m
Multiple Airlines
Deal found 2/14![Multiple Airlines logo]()
$173
This Kiwi.com deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/168:12 pm
STL
- DTW
1 stop13h 47m
Frontier
Mon 3/235:07 pm
DTW
- STL
1 stop18h 25m
Frontier
Deal found 2/14![Frontier logo]()
$173
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 February 16, 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 February 16, 2026.
This American Airlines deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/1710:15 pm
ORD
- GRR
Nonstop0h 59m
American Airlines
Sat 3/217:00 am
GRR
- ORD
Nonstop1h 14m
American Airlines
Deal found 2/15![American Airlines logo]()
$95
This Priceline deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/21:54 pm
STL
- DTW
1 stop9h 01m
Frontier
Wed 3/48:30 am
DTW
- STL
1 stop8h 23m
Frontier
Deal found 2/16![Frontier logo]()
$160
This CheapOair deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/76:01 pm
ORD
- DTW
1 stop13h 45m
Spirit Airlines
Thu 4/911:34 am
DTW
- ORD
1 stop13h 48m
Spirit Airlines
Deal found 2/16![Spirit Airlines logo]()
$171
This Delta deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/171:57 pm
ORD
- GRR
1 stop2h 50m
Delta
Sat 3/213:37 pm
GRR
- ORD
1 stop5h 40m
Delta
Deal found 2/15![Delta logo]()
$174
This American Airlines deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/1710:15 pm
ORD
- GRR
Nonstop0h 59m
American Airlines
Tue 3/246:00 am
GRR
- ORD
Nonstop1h 14m
American Airlines
Deal found 2/15![American Airlines logo]()
$95
This Southwest deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/510:30 am
STL
- DTW
Nonstop1h 30m
Southwest
Wed 5/67:00 am
DTW
- STL
Nonstop1h 45m
Southwest
Deal found 2/15![Southwest logo]()
$197
This Kiwi.com deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/2312:16 pm
STL
- DTW
1 stop18h 51m
Multiple Airlines
Wed 3/2511:34 am
DTW
- STL
2 stops23h 57m
Multiple Airlines
Deal found 2/12![Multiple Airlines logo]()
$205
This United Airlines deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” 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 3/127:41 am
STL
- ORD
Nonstop1h 29m
United Airlines
Fri 3/131:12 pm
ORD
- STL
Nonstop1h 31m
United Airlines
Deal found 2/16![United Airlines logo]()
$208
This American Airlines deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/3110:15 pm
ORD
- GRR
Nonstop0h 59m
American Airlines
Tue 4/75:43 am
GRR
- ORD
Nonstop1h 21m
American Airlines
Deal found 2/13![American Airlines logo]()
$96
This Kiwi.com deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/208:13 pm
STL
- DTW
1 stop14h 18m
Frontier
Wed 4/225:09 pm
DTW
- STL
1 stop18h 21m
Frontier
Deal found 2/12![Frontier logo]()
$167
This Delta deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/112:05 pm
ORD
- DTW
Nonstop1h 24m
Delta
Mon 4/208:10 pm
DTW
- ORD
Nonstop1h 30m
Delta
Deal found 2/15![Delta logo]()
$174
This Kiwi.com deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/276:51 pm
ORD
- DTW
1 stop11h 58m
Spirit Airlines
Sat 3/75:09 am
DTW
- ORD
1 stop20h 31m
Spirit Airlines
Deal found 2/14![Spirit Airlines logo]()
$175
This American Airlines deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2810:10 pm
ORD
- GRR
Nonstop1h 07m
American Airlines
Thu 4/306:43 am
GRR
- ORD
Nonstop1h 26m
American Airlines
Deal found 2/13![American Airlines logo]()
$157
This Delta deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/117:10 am
ORD
- DTW
Nonstop1h 20m
Delta
Thu 4/2312:17 pm
DTW
- ORD
Nonstop1h 28m
Delta
Deal found 2/15![Delta logo]()
$174
This Kiwi.com deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/1811:32 am
STL
- DTW
1 stop19h 35m
Frontier
Sun 3/225:04 pm
DTW
- STL
1 stop21h 30m
Frontier
Deal found 2/15![Frontier logo]()
$180
This CheapOair deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/316:01 pm
ORD
- DTW
1 stop13h 45m
Spirit Airlines
Thu 4/211:34 am
DTW
- ORD
1 stop13h 48m
Spirit Airlines
Deal found 2/15![Spirit Airlines logo]()
$182
This Southwest deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” 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 3/178:15 am
MDW
- DTW
1 stop4h 20m
Southwest
Tue 3/177:15 pm
DTW
- MDW
Nonstop1h 15m
Southwest
Deal found 2/16![Southwest logo]()
$201
This American Airlines deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” 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 3/1610:15 pm
ORD
- GRR
Nonstop0h 59m
American Airlines
Mon 3/237:00 am
GRR
- ORD
Nonstop1h 19m
American Airlines
Deal found 2/16![American Airlines logo]()
$157
This Delta deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/99:50 am
ORD
- DTW
Nonstop1h 19m
Delta
Sat 4/259:48 am
DTW
- ORD
Nonstop1h 31m
Delta
Deal found 2/15![Delta logo]()
$174
This Kiwi.com deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/277:53 pm
MDW
- DTW
1 stop16h 37m
Multiple Airlines
Sat 3/79:32 am
DTW
- MDW
1 stop13h 52m
Multiple Airlines
Deal found 2/14![Multiple Airlines logo]()
$214
This United Airlines deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/231:55 pm
ORD
- GRR
Nonstop1h 04m
United Airlines
Fri 3/277:25 am
GRR
- ORD
Nonstop1h 12m
United Airlines
Deal found 2/12![United Airlines logo]()
$215
This Frontier deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/191:27 pm
ORD
- DTW
1 stop10h 11m
Frontier
Tue 4/215:09 pm
DTW
- ORD
1 stop6h 30m
Frontier
Deal found 2/14![Frontier logo]()
$181
This Southwest deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/17:55 am
MDW
- DTW
Nonstop1h 10m
Southwest
Wed 4/84:10 pm
DTW
- MDW
1 stop4h 50m
Southwest
Deal found 2/15![Southwest logo]()
$201
This Kiwi.com deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/208:13 pm
STL
- DTW
1 stop14h 18m
Multiple Airlines
Wed 4/226:30 am
DTW
- STL
2 stops17h 49m
Multiple Airlines
Deal found 2/12![Multiple Airlines logo]()
$218
This Frontier deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/216:00 am
MDW
- DTW
1 stop9h 14m
Frontier
Thu 4/235:09 pm
DTW
- MDW
1 stop6h 10m
Frontier
Deal found 2/14![Frontier logo]()
$181
This Southwest deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/309:50 pm
STL
- MDW
Nonstop1h 10m
Southwest
Mon 4/65:40 pm
MDW
- STL
Nonstop1h 15m
Southwest
Deal found 2/13![Southwest logo]()
$201
This Delta deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” 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 3/179:35 am
MDW
- DTW
Nonstop1h 08m
Delta
Tue 3/175:40 pm
DTW
- MDW
Nonstop1h 14m
Delta
Deal found 2/16![Delta logo]()
$191
This American Airlines deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/99:51 am
ORD
- TVC
Nonstop1h 20m
American Airlines
Sun 5/107:46 pm
TVC
- ORD
Nonstop1h 38m
American Airlines
Deal found 2/13![American Airlines logo]()
$179
This Southwest deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/710:35 am
STL
- MDW
Nonstop1h 10m
Southwest
Sat 3/75:40 pm
MDW
- STL
Nonstop1h 15m
Southwest
Deal found 2/13![Southwest logo]()
$201
This United Airlines deal was found by Cheapflights users on 2/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/287:41 am
STL
- TVC
1 stop4h 18m
United Airlines
Tue 3/34:20 pm
TVC
- STL
1 stop5h 45m
United Airlines
Deal found 2/12![United Airlines logo]()
$259
Last-minute flights from Illinois to MichiganDiscover last-minute flight deals from Illinois to Michigan. Data last updated February 16, 2026 and is based on user searches.
Discover last-minute flight deals from Illinois to Michigan. Data last updated February 16, 2026 and is based on user searches.
This Expedia deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/278:22 pm
STL
- DTW
1 stop11h 10m
Frontier
Mon 3/26:08 pm
DTW
- STL
1 stop6h 51m
Frontier
Deal found 2/14![Frontier logo]()
$170
This Kiwi.com deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/273:40 pm
ORD
- DTW
2 stops20h 50m
Multiple Airlines
Mon 3/25:09 am
DTW
- ORD
1 stop20h 31m
Multiple Airlines
Deal found 2/13![Multiple Airlines logo]()
$174
This Priceline deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/21:54 pm
STL
- DTW
1 stop9h 01m
Frontier
Wed 3/48:30 am
DTW
- STL
1 stop8h 23m
Frontier
Deal found 2/16![Frontier logo]()
$160
This American Airlines deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/67:30 am
ORD
- DTW
Nonstop1h 26m
American Airlines
Mon 3/95:45 am
DTW
- ORD
Nonstop1h 25m
American Airlines
Deal found 2/14![American Airlines logo]()
$171
This American Airlines deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/108:15 am
ORD
- GRR
Nonstop1h 02m
American Airlines
Thu 3/127:42 pm
GRR
- ORD
Nonstop1h 14m
American Airlines
Deal found 2/13![American Airlines logo]()
$164
This American Airlines deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/1210:10 pm
ORD
- DTW
Nonstop1h 21m
American Airlines
Sun 3/155:45 am
DTW
- ORD
Nonstop1h 25m
American Airlines
Deal found 2/15![American Airlines logo]()
$172
This Kiwi.com deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/155:01 am
ORD
- DTW
1 stop26h 06m
Multiple Airlines
Fri 3/2011:34 am
DTW
- ORD
1 stop13h 48m
Multiple Airlines
Deal found 2/14![Multiple Airlines logo]()
$173
This American Airlines deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” 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 3/1610:15 pm
ORD
- GRR
Nonstop0h 59m
American Airlines
Mon 3/237:00 am
GRR
- ORD
Nonstop1h 19m
American Airlines
Deal found 2/16![American Airlines logo]()
$157
This Kiwi.com deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/168:12 pm
STL
- DTW
1 stop13h 47m
Frontier
Mon 3/235:07 pm
DTW
- STL
1 stop18h 25m
Frontier
Deal found 2/14![Frontier logo]()
$173
This American Airlines deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/1710:15 pm
ORD
- GRR
Nonstop0h 59m
American Airlines
Sat 3/217:00 am
GRR
- ORD
Nonstop1h 14m
American Airlines
Deal found 2/15![American Airlines logo]()
$95
This Delta deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/171:57 pm
ORD
- GRR
1 stop2h 50m
Delta
Sat 3/213:37 pm
GRR
- ORD
1 stop5h 40m
Delta
Deal found 2/15![Delta logo]()
$174
This American Airlines deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/3110:15 pm
ORD
- GRR
Nonstop0h 59m
American Airlines
Tue 4/75:43 am
GRR
- ORD
Nonstop1h 21m
American Airlines
Deal found 2/13![American Airlines logo]()
$96
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 February 16, 2026.
Search for one-way flight options from Illinois to Michigan. Find affordable one-way fares based on user searches. Data last updated February 16, 2026.
This United Airlines deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/216:25 am
STL
- ORD
Nonstop1h 33m
United Airlines
Deal found 2/15![United Airlines logo]()
$43
This American Airlines deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/306:00 am
STL
- ORD
Nonstop1h 28m
American Airlines
Deal found 2/15![American Airlines logo]()
$45
This Southwest deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/185:40 am
STL
- MDW
Nonstop1h 10m
Southwest
Deal found 2/15![Southwest logo]()
$46
This American Airlines deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/107:05 am
STL
- ORD
Nonstop1h 31m
American Airlines
Deal found 2/15![American Airlines logo]()
$46
This American Airlines deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/137:14 am
ORD
- GRR
Nonstop1h 10m
American Airlines
Deal found 2/14![American Airlines logo]()
$48
This American Airlines deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/2210:15 pm
ORD
- GRR
Nonstop0h 59m
American Airlines
Deal found 2/15![American Airlines logo]()
$49
This Southwest deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/1810:30 am
STL
- MDW
Nonstop1h 10m
Southwest
Deal found 2/13![Southwest logo]()
$49
This United Airlines deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2211:15 am
STL
- ORD
Nonstop1h 29m
United Airlines
Deal found 2/13![United Airlines logo]()
$49
This Southwest deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/1610:35 am
STL
- MDW
1 stop6h 40m
Southwest
Deal found 2/14![Southwest logo]()
$53
This United Airlines deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/49:28 pm
ORD
- GRR
Nonstop1h 09m
United Airlines
Deal found 2/14![United Airlines logo]()
$56
This Southwest deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/225:45 am
STL
- ORD
1 stop5h 25m
Southwest
Deal found 2/13![Southwest logo]()
$59
This American Airlines deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/35:46 am
STL
- ORD
Nonstop1h 30m
American Airlines
Deal found 2/14![American Airlines logo]()
$66
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 February 16, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $95 (American Airlines) |
One-way from | $43 (United Airlines) |
Popular in | February |
Cheapest in | May |
Average price | $445 |
Good round-trip deal | $92 or less |
Good one-way deal | $47 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 February 16, 2026.
Use the filters below to find and compare flights from Illinois to Michigan that are best for you.
Fly from
Illinois
Fly to
Michigan
Route
Depart
Return
Price
ChicagoGrand Rapids
ORD - GRR
ORDGRR
Chicago O'Hare Intl
Tue 3/17
10:15 pm-12:14 am
Nonstop0h 59m
Grand Rapids Gerald R. Ford Intl
Sat 3/21
7:00 am-7:14 am
Nonstop1h 14m
$95
ChicagoGrand Rapids
ORD - GRR
ORDGRR
Chicago O'Hare Intl
Tue 3/17
10:15 pm-12:14 am
Nonstop0h 59m
Grand Rapids Gerald R. Ford Intl
Tue 3/24
6:00 am-6:14 am
Nonstop1h 14m
$95
ChicagoGrand Rapids
ORD - GRR
ORDGRR
Chicago O'Hare Intl
Tue 3/31
10:15 pm-12:14 am
Nonstop0h 59m
Grand Rapids Gerald R. Ford Intl
Tue 4/7
5:43 am-6:04 am
Nonstop1h 21m
$96
ChicagoGrand Rapids
ORD - GRR
ORDGRR
Chicago O'Hare Intl
Tue 4/28
10:10 pm-12:17 am
Nonstop1h 07m
Grand Rapids Gerald R. Ford Intl
Thu 4/30
6:43 am-7:09 am
Nonstop1h 26m
$157
ChicagoGrand Rapids
ORD - GRR
ORDGRR
Chicago O'Hare Intl
Mon 3/16
10:15 pm-12:14 am
Nonstop0h 59m
Grand Rapids Gerald R. Ford Intl
Mon 3/23
7:00 am-7:19 am
Nonstop1h 19m
$157
St. LouisDetroit
STL - DTW
STLDTW
Lambert-St Louis
Mon 3/2
1:54 pm-11:55 pm
1 stop9h 01m
Detroit Metropolitan Wayne County
Wed 3/4
8:30 am-3:53 pm
1 stop8h 23m
$160
St. LouisDetroit
STL - DTW
STLDTW
Lambert-St Louis
Mon 4/20
8:13 pm-11:31 am
1 stop14h 18m
Detroit Metropolitan Wayne County
Wed 4/22
5:09 pm-10:30 am
1 stop18h 21m
$167
ChicagoDetroit
ORD - DTW
ORDDTW
Chicago O'Hare Intl
Tue 4/7
6:01 pm-8:46 am
1 stop13h 45m
Detroit Metropolitan Wayne County
Thu 4/9
11:34 am-12:22 am
1 stop13h 48m
$171
ChicagoGrand Rapids
ORD - GRR
ORDGRR
Chicago O'Hare Intl
Tue 3/17
1:57 pm-5:47 pm
1 stop2h 50m
Grand Rapids Gerald R. Ford Intl
Sat 3/21
3:37 pm-8:17 pm
1 stop5h 40m
$174
ChicagoDetroit
ORD - DTW
ORDDTW
Chicago O'Hare Intl
Sat 4/11
2:05 pm-4:29 pm
Nonstop1h 24m
Detroit Metropolitan Wayne County
Mon 4/20
8:10 pm-8:40 pm
Nonstop1h 30m
$174
Showing 1-10 of 60 results
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
STL-DTW
ORD-DTW
STL-ORD
MDW-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
ORD-GRR
STL-DTW
ORD-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 December is currently the most expensive (average of $139). 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 February 16, 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 evening could potentially save you up to 28% 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 February 7, 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 February 16, 2026.
The most flights from USIL to USMI are scheduled on a Friday (72 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (50 on average).
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 February 16, 2026.
Read through reviews of airlines operating flights from Illinois to Michigan, such as Southwest, Denver Air Connection, and Delta. 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
Entertainment
7.5
Overall
8.0
Comfort
8.0
Food
7.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Crew
8.6
Entertainment
7.5
Overall
8.0
Comfort
8.0
Food
7.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Denver Air Connection
Boarding
8.1
Crew
8.6
Entertainment
7.5
Overall
8.0
Comfort
8.0
Food
7.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Crew
8.6
Entertainment
7.5
Overall
8.0
Comfort
8.0
Food
7.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Crew
8.6
Entertainment
7.5
Overall
8.0
Comfort
8.0
Food
7.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Crew
8.6
Entertainment
7.5
Overall
8.0
Comfort
8.0
Food
7.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
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 February 16, 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 February 16, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$91 | Average$252 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$91 | Average$328 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$97 | Average$277 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$100 | Average$340 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$144 | Average$178 | FlexibilityNo cancel fee | On-time62% |