$70+ Cheap flights from Michigan to Illinois
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 5/12. Fares are subject to change and may not be available on all flights or dates of travel.
DTW — ORD
Apr 27 — May 41
Round-trip
1 adult, Economy
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Find cheap flights from Michigan to Illinois with Cheapflights
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Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Cheapest flights from Michigan to IllinoisExplore the most affordable flight options available from Michigan to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 28, 2026.
Explore the most affordable flight options available from Michigan to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 28, 2026.
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 5/97:55 am
DTW
- STL
1 stop12h 28m
Frontier
Wed 5/135:27 pm
STL
- DTW
1 stop6h 12m
Frontier
Deal found 3/26![Frontier logo]()
$140
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.
Wed 4/297:04 pm
DTW
- ORD
1 stop16h 19m
Multiple Airlines
Sun 5/311:28 am
ORD
- DTW
1 stop20h 42m
Multiple Airlines
Deal found 3/27![Multiple Airlines logo]()
$151
This Kiwi.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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/169:50 am
DTW
- ORD
1 stop13h 49m
Frontier
Mon 4/204:28 pm
ORD
- DTW
1 stop18h 10m
Frontier
Deal found 3/26![Frontier logo]()
$152
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 6/16:05 pm
DTW
- ORD
1 stop14h 50m
Frontier
Wed 6/171:50 pm
ORD
- DTW
1 stop22h 17m
Frontier
Deal found 3/25![Frontier logo]()
$153
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.
Tue 4/287:04 pm
DTW
- MDW
1 stop25h 27m
Frontier
Tue 5/56:00 am
MDW
- DTW
1 stop17h 59m
Frontier
Deal found 3/27![Frontier logo]()
$156
This Kiwi.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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/255:09 pm
DTW
- ORD
1 stop6h 30m
Multiple Airlines
Sat 5/29:16 am
ORD
- DTW
1 stop5h 58m
Multiple Airlines
Deal found 3/26![Multiple Airlines logo]()
$158
This Kiwi.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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/238:30 pm
DTW
- MDW
1 stop17h 30m
Multiple Airlines
Thu 4/306:00 am
MDW
- DTW
1 stop11h 55m
Multiple Airlines
Deal found 3/26![Multiple Airlines logo]()
$158
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.
Wed 4/227:04 pm
DTW
- ORD
1 stop17h 28m
Frontier
Wed 4/2911:07 am
ORD
- DTW
1 stop6h 00m
Frontier
Deal found 3/25![Frontier logo]()
$159
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/129:02 pm
DTW
- STL
1 stop11h 49m
Frontier
Wed 4/228:23 pm
STL
- DTW
1 stop11h 42m
Frontier
Deal found 3/28![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.
Mon 4/135:50 pm
DTW
- ORD
1 stop5h 49m
Frontier
Fri 4/1712:42 pm
ORD
- DTW
1 stop6h 22m
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.
Wed 4/2912:33 pm
DTW
- MDW
1 stop7h 58m
Frontier
Sat 5/26:00 am
MDW
- DTW
1 stop9h 14m
Frontier
Deal found 3/27![Frontier logo]()
$160
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 5/196:50 am
DTW
- STL
1 stop11h 43m
Frontier
Tue 6/26:33 pm
STL
- DTW
1 stop5h 06m
Frontier
Deal found 3/25![Frontier logo]()
$161
Best flights from Michigan to IllinoisDiscover carefully curated flight deals from Michigan to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 28, 2026.
Discover carefully curated flight deals from Michigan to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 28, 2026.
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.
Tue 5/59:00 am
GRR
- ORD
Nonstop1h 10m
United Airlines
Tue 5/51:55 pm
ORD
- GRR
Nonstop1h 06m
United Airlines
Deal found 3/26![United Airlines logo]()
$169
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/188:10 pm
DTW
- ORD
Nonstop1h 30m
Delta
Mon 4/207:43 pm
ORD
- DTW
Nonstop1h 26m
Delta
Deal found 3/28![Delta logo]()
$191
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.
Wed 4/226:10 am
DTW
- MDW
2 stops10h 35m
Southwest
Wed 4/294:40 pm
MDW
- DTW
1 stop3h 35m
Southwest
Deal found 3/23![Southwest logo]()
$196
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/155:36 am
FNT
- ORD
Nonstop1h 24m
American Airlines
Sun 5/1710:10 am
ORD
- FNT
Nonstop1h 19m
American Airlines
Deal found 3/26![American Airlines logo]()
$239
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 4/259:13 am
GRR
- ORD
Nonstop1h 09m
United Airlines
Sat 5/24:50 pm
ORD
- GRR
Nonstop1h 05m
United Airlines
Deal found 3/26![United Airlines logo]()
$191
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 5/235:05 pm
DTW
- MDW
Nonstop1h 10m
Southwest
Tue 5/266:05 pm
MDW
- DTW
Nonstop1h 10m
Southwest
Deal found 3/26![Southwest logo]()
$197
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.
Wed 4/223:50 pm
GRR
- ORD
1 stop5h 50m
Delta
Thu 4/231:36 pm
ORD
- GRR
1 stop4h 48m
Delta
Deal found 3/27![Delta logo]()
$211
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.
Mon 4/278:25 am
GRR
- MDW
2 stops5h 45m
Southwest
Wed 4/2910:15 am
MDW
- GRR
Nonstop0h 55m
Southwest
Deal found 3/25![Southwest logo]()
$201
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 4/3012:58 pm
GRR
- ORD
Nonstop1h 17m
United Airlines
Mon 5/119:40 pm
ORD
- GRR
Nonstop1h 15m
United Airlines
Deal found 3/24![United Airlines logo]()
$203
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.
Fri 5/112:17 pm
DTW
- ORD
Nonstop1h 28m
Delta
Wed 5/65:04 pm
ORD
- DTW
Nonstop1h 20m
Delta
Deal found 3/26![Delta logo]()
$216
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 4/256:45 am
GRR
- MDW
Nonstop1h 00m
Southwest
Sat 4/259:05 am
MDW
- GRR
1 stop4h 25m
Southwest
Deal found 3/26![Southwest logo]()
$201
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 4/227:30 am
GRR
- ORD
Nonstop1h 09m
United Airlines
Fri 4/2410:45 pm
ORD
- GRR
Nonstop1h 09m
United Airlines
Deal found 3/26![United Airlines logo]()
$211
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 4/157:30 am
DTW
- ORD
Nonstop1h 31m
Delta
Fri 4/177:00 am
ORD
- DTW
Nonstop1h 30m
Delta
Deal found 3/24![Delta logo]()
$216
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.
Thu 4/168:30 pm
DTW
- MDW
Nonstop1h 15m
Southwest
Mon 4/207:50 am
MDW
- DTW
1 stop5h 30m
Southwest
Deal found 3/27![Southwest logo]()
$201
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 4/1512:25 pm
DTW
- MDW
Nonstop1h 18m
Delta
Fri 4/179:27 am
MDW
- DTW
Nonstop1h 12m
Delta
Deal found 3/24![Delta logo]()
$216
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 4/253:40 pm
DTW
- MDW
1 stop5h 25m
Southwest
Sat 5/23:30 pm
MDW
- DTW
Nonstop1h 05m
Southwest
Deal found 3/26![Southwest logo]()
$201
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.
Sat 4/188:05 pm
DTW
- ORD
Nonstop1h 35m
United Airlines
Mon 4/2010:45 pm
ORD
- DTW
Nonstop1h 31m
United Airlines
Deal found 3/23![United Airlines logo]()
$227
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.
Sat 4/188:30 am
GRR
- MDW
1 stop5h 13m
Delta
Mon 4/209:27 am
MDW
- GRR
1 stop4h 42m
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 5/278:50 am
DTW
- ORD
Nonstop1h 32m
United Airlines
Sun 5/312:50 pm
ORD
- DTW
Nonstop1h 39m
United Airlines
Deal found 3/26![United Airlines logo]()
$230
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.
Tue 5/198:15 am
DTW
- STL
1 stop4h 15m
Southwest
Tue 6/26:45 pm
STL
- DTW
Nonstop1h 30m
Southwest
Deal found 3/25![Southwest logo]()
$225
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.
Sat 4/185:29 am
GRR
- ORD
1 stop3h 32m
Delta
Mon 4/207:43 pm
ORD
- GRR
1 stop3h 14m
Delta
Deal found 3/24![Delta logo]()
$225
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.
Wed 7/293:36 pm
FNT
- ORD
Nonstop1h 30m
United Airlines
Tue 8/48:35 pm
ORD
- FNT
Nonstop1h 28m
United Airlines
Deal found 3/25![United Airlines 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.
Sat 5/94:00 pm
DTW
- ORD
Nonstop1h 29m
Delta
Sat 5/1611:09 am
ORD
- DTW
Nonstop1h 21m
Delta
Deal found 3/25![Delta logo]()
$227
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.
Tue 5/126:10 am
DTW
- MDW
2 stops10h 35m
Southwest
Tue 5/1910:10 am
MDW
- DTW
2 stops7h 10m
Southwest
Deal found 3/28![Southwest 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.
Thu 5/213:36 pm
FNT
- ORD
Nonstop1h 30m
United Airlines
Sun 5/2412:40 pm
ORD
- FNT
Nonstop1h 21m
United Airlines
Deal found 3/26![United Airlines logo]()
$239
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.
Thu 5/712:35 pm
DTW
- ORD
Nonstop1h 26m
Delta
Sat 5/91:44 pm
ORD
- DTW
Nonstop1h 26m
Delta
Deal found 3/24![Delta logo]()
$227
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.
Tue 4/147:00 am
DTW
- STL
Nonstop1h 45m
Southwest
Tue 4/146:45 pm
STL
- DTW
Nonstop1h 30m
Southwest
Deal found 3/23![Southwest logo]()
$229
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.
Fri 5/110:09 am
FNT
- ORD
Nonstop1h 37m
United Airlines
Sun 5/38:10 pm
ORD
- FNT
Nonstop1h 24m
United Airlines
Deal found 3/24![United Airlines logo]()
$239
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 4/257:30 am
DTW
- ORD
Nonstop1h 31m
Delta
Sat 5/28:55 am
ORD
- DTW
Nonstop1h 24m
Delta
Deal found 3/26![Delta logo]()
$227
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.
Wed 5/67:10 pm
DTW
- STL
Nonstop1h 45m
Southwest
Sat 5/97:00 pm
STL
- DTW
Nonstop1h 30m
Southwest
Deal found 3/23![Southwest logo]()
$239
Last-minute flights from Michigan to IllinoisDiscover last-minute flight deals from Michigan to Illinois. Data last updated March 28, 2026 and is based on user searches.
Discover last-minute flight deals from Michigan to Illinois. Data last updated March 28, 2026 and is based on user searches.
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/129:02 pm
DTW
- STL
1 stop11h 49m
Frontier
Wed 4/228:23 pm
STL
- DTW
1 stop11h 42m
Frontier
Deal found 3/28![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.
Mon 4/135:50 pm
DTW
- ORD
1 stop5h 49m
Frontier
Fri 4/1712:42 pm
ORD
- DTW
1 stop6h 22m
Frontier
Deal found 3/27![Frontier logo]()
$160
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.
Tue 4/143:50 pm
DTW
- STL
1 stop8h 29m
Frontier
Thu 4/1611:25 am
STL
- DTW
1 stop6h 21m
Frontier
Deal found 3/24![Frontier logo]()
$140
This Kiwi.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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/169:50 am
DTW
- ORD
1 stop13h 49m
Frontier
Mon 4/204:28 pm
ORD
- DTW
1 stop18h 10m
Frontier
Deal found 3/26![Frontier logo]()
$152
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 4/168:43 pm
DTW
- ORD
1 stop14h 40m
Multiple Airlines
Mon 4/204:28 pm
ORD
- DTW
1 stop18h 10m
Multiple Airlines
Deal found 3/27![Multiple Airlines logo]()
$161
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.
Wed 4/227:04 pm
DTW
- ORD
1 stop17h 28m
Frontier
Wed 4/2911:07 am
ORD
- DTW
1 stop6h 00m
Frontier
Deal found 3/25![Frontier logo]()
$159
This Kiwi.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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/238:30 pm
DTW
- MDW
1 stop17h 30m
Multiple Airlines
Thu 4/306:00 am
MDW
- DTW
1 stop11h 55m
Multiple Airlines
Deal found 3/26![Multiple Airlines logo]()
$158
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.
Fri 4/248:49 pm
DTW
- ORD
1 stop15h 44m
Frontier
Fri 5/15:50 am
ORD
- DTW
1 stop13h 03m
Frontier
Deal found 3/25![Frontier logo]()
$163
This Kiwi.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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/255:09 pm
DTW
- ORD
1 stop6h 30m
Multiple Airlines
Sat 5/29:16 am
ORD
- DTW
1 stop5h 58m
Multiple Airlines
Deal found 3/26![Multiple Airlines logo]()
$158
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.
Tue 4/287:04 pm
DTW
- MDW
1 stop25h 27m
Frontier
Tue 5/56:00 am
MDW
- DTW
1 stop17h 59m
Frontier
Deal found 3/27![Frontier logo]()
$156
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.
Wed 4/297:04 pm
DTW
- ORD
1 stop16h 19m
Multiple Airlines
Sun 5/311:28 am
ORD
- DTW
1 stop20h 42m
Multiple Airlines
Deal found 3/27![Multiple Airlines logo]()
$151
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.
Wed 4/2912:33 pm
DTW
- MDW
1 stop7h 58m
Frontier
Sat 5/26:00 am
MDW
- DTW
1 stop9h 14m
Frontier
Deal found 3/27![Frontier logo]()
$160
One-way flights from Michigan to IllinoisSearch for one-way flight options from Michigan to Illinois. Find affordable one-way fares based on user searches. Data last updated March 28, 2026.
Search for one-way flight options from Michigan to Illinois. Find affordable one-way fares based on user searches. Data last updated March 28, 2026.
This Priceline 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/121:31 pm
DTW
- STL
1 stop5h 02m
Frontier
Deal found 3/27![Frontier logo]()
$70
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.
Fri 5/84:52 pm
MDW
- STL
1 stop7h 29m
Frontier
Deal found 3/26![Frontier logo]()
$70
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.
Sat 4/255:09 pm
DTW
- ORD
1 stop6h 30m
Frontier
Deal found 3/27![Frontier logo]()
$70
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 4/2512:40 pm
DTW
- MDW
1 stop6h 57m
Frontier
Deal found 3/26![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.
Sat 5/235:30 pm
ORD
- STL
1 stop6h 51m
Frontier
Deal found 3/24![Frontier logo]()
$70
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.
Wed 5/206:20 am
DTW
- MDW
1 stop5h 49m
Frontier
Deal found 3/26![Frontier logo]()
$72
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/116:05 pm
DTW
- ORD
1 stop14h 50m
Frontier
Deal found 3/24![Frontier logo]()
$74
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/116:05 pm
DTW
- MDW
1 stop28h 57m
Frontier
Deal found 3/24![Frontier logo]()
$74
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 5/216:50 am
DTW
- STL
1 stop11h 43m
Frontier
Deal found 3/27![Frontier logo]()
$76
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.
Mon 4/2712:02 pm
DTW
- ORD
1 stop13h 50m
Frontier
Deal found 3/27![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.
Sat 5/232:40 pm
DTW
- MDW
1 stop8h 22m
Frontier
Deal found 3/25![Frontier logo]()
$76
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.
Tue 5/196:55 am
ORD
- STL
1 stop10h 38m
Frontier
Deal found 3/24![Frontier logo]()
$76
Find flight deals from Michigan to Illinois
Keep the following information in mind while searching for Michigan to Illinois flight deals. Data was last updated March 28, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $140 (Frontier) |
One-way from | $70 (Priceline) |
Popular in | May |
Cheapest in | September |
Average price | $291 |
Good round-trip deal | $85 or less |
Good one-way deal | $49 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Michigan to Illinois that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 28, 2026.
Use the filters below to find and compare flights from Michigan to Illinois that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Grand RapidsChicago
GRR - ORD
GRRORD
Grand Rapids Gerald R. Ford Intl
Tue 5/5
9:00 am-9:10 am
Nonstop1h 10m
Chicago O'Hare Intl
Tue 5/5
1:55 pm-4:01 pm
Nonstop1h 06m
$169
DetroitChicago
DTW - ORD
DTWORD
Detroit Metropolitan Wayne County
Sat 4/18
8:10 pm-8:40 pm
Nonstop1h 30m
Chicago O'Hare Intl
Mon 4/20
7:43 pm-10:09 pm
Nonstop1h 26m
$191
Quickest round-trip
Grand RapidsChicago
GRR - ORD
GRRORD
Grand Rapids Gerald R. Ford Intl
Sat 4/25
9:13 am-9:22 am
Nonstop1h 09m
Chicago O'Hare Intl
Sat 5/2
4:50 pm-6:55 pm
Nonstop1h 05m
$191
DetroitChicago
DTW - MDW
DTWMDW
Detroit Metropolitan Wayne County
Wed 4/22
6:10 am-3:45 pm
2 stops10h 35m
Chicago Midway
Wed 4/29
4:40 pm-9:15 pm
1 stop3h 35m
$196
DetroitChicago
DTW - MDW
DTWMDW
Detroit Metropolitan Wayne County
Sat 5/23
5:05 pm-5:15 pm
Nonstop1h 10m
Chicago Midway
Tue 5/26
6:05 pm-8:15 pm
Nonstop1h 10m
$197
Grand RapidsChicago
GRR - MDW
GRRMDW
Grand Rapids Gerald R. Ford Intl
Mon 4/27
8:25 am-1:10 pm
2 stops5h 45m
Chicago Midway
Wed 4/29
10:15 am-12:10 pm
Nonstop0h 55m
$201
Grand RapidsChicago
GRR - MDW
GRRMDW
Grand Rapids Gerald R. Ford Intl
Sat 4/25
6:45 am-6:45 am
Nonstop1h 00m
Chicago Midway
Sat 4/25
9:05 am-2:30 pm
1 stop4h 25m
$201
DetroitChicago
DTW - MDW
DTWMDW
Detroit Metropolitan Wayne County
Thu 4/16
8:30 pm-8:45 pm
Nonstop1h 15m
Chicago Midway
Mon 4/20
7:50 am-2:20 pm
1 stop5h 30m
$201
DetroitChicago
DTW - MDW
DTWMDW
Detroit Metropolitan Wayne County
Sat 4/25
3:40 pm-8:05 pm
1 stop5h 25m
Chicago Midway
Sat 5/2
3:30 pm-5:35 pm
Nonstop1h 05m
$201
Grand RapidsChicago
GRR - ORD
GRRORD
Grand Rapids Gerald R. Ford Intl
Thu 4/30
12:58 pm-1:15 pm
Nonstop1h 17m
Chicago O'Hare Intl
Mon 5/11
9:40 pm-11:55 pm
Nonstop1h 15m
$203
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Michigan to Illinois
Have a flexible travel schedule? Discover the best time to fly to Illinois from Michigan with our price prediction graph.
DTW-STL
DTW-ORD
DTW-MDW
MDW-STL
GRR-STL
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Michigan to Illinois
USMI-USIL
DTW-STL
DTW-ORD
DTW-MDW
MDW-STL
What is the cheapest month to book a flight from Michigan to Illinois?
Currently, November is the cheapest month in which you can book a flight from Michigan to Illinois (average of $53). Flying from Michigan to Illinois in February is currently the most expensive (average of $143). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from MI to IL?
Find hourly flight availability from Michigan to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 28, 2026.
Unlike in the evening, when flights are generally more expensive, you can save up to 16% on flights from Michigan to Illinois by exploring options for tickets in the morning.
What is the cheapest day to fly from Michigan to Illinois?
Use this chart to determine the cheapest time to fly round-trip from Michigan to Illinois. Price data was last updated on March 23, 2026.
Travelers seeking maximum savings on their Michigan to Illinois flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Weekly flight availability from Michigan to Illinois
Explore weekly flight availability from Michigan to Illinois. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated March 28, 2026.
The most flights from USMI to USIL are scheduled on a Saturday (74 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (16 on average).
How much does it cost to fly round-trip from Michigan to Illinois?
Reviews of airlines servicing Illinois
Get insights into the airlines that provide service to Illinois. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Illinois. Reviews last updated March 28, 2026.
See what other customers who have flown with Denver Air Connection,Southwest, andDelta from Michigan to Illinois have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Denver Air Connection
Crew
9.1
Entertainment
7.6
Overall
8.1
Food
8.2
Boarding
8.2
Comfort
8.6
Denver Air Connection
Denver Air Connection
Crew
9.1
Entertainment
7.6
Overall
8.1
Food
8.2
Boarding
8.2
Comfort
8.6
Denver Air Connection
Crew
9.1
Entertainment
7.6
Overall
8.1
Food
8.2
Boarding
8.2
Comfort
8.6
Denver Air Connection
Crew
9.1
Entertainment
7.6
Overall
8.1
Food
8.2
Boarding
8.2
Comfort
8.6
Denver Air Connection
Crew
9.1
Entertainment
7.6
Overall
8.1
Food
8.2
Boarding
8.2
Comfort
8.6
Denver Air Connection
Crew
9.1
Entertainment
7.6
Overall
8.1
Food
8.2
Boarding
8.2
Comfort
8.6
Related info for your journey
Find useful and relevant information for your journey from Michigan to Illinois. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
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Alternative routes for Michigan to Illinois
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Illinois by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Michigan to Illinois by cabin class
Find flights from Michigan to Illinois, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Michigan and Illinois flights
Browse other Michigan and Illinois flight options. Last updated on March 28, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Find a return flight route from Illinois
Find the right flight back to Michigan after your stay in Illinois
Michigan to Illinois flights
Consider these flights traveling from Michigan to Illinois.
Top 4 airlines flying from Michigan to Illinois
Discover the top 4 airlines that operate flights from Michigan to Illinois. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 28, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$91 | Average$301 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$91 | Average$301 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$94 | Average$290 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$97 | Average$240 | FlexibilityNo cancel fee | On-time63% |