$49+ 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 5/13. Fares are subject to change and may not be available on all flights or dates of travel.
DTW — ORD
Apr 3 — Apr 101
1 adult, Economy
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Find cheap flights from Michigan to Illinois 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 Michigan to Illinois
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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 4, 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 4, 2026.
This American Airlines deal was found by Cheapflights users on 3/3. 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.
Tue 3/247:42 pm
GRR
- ORD
Nonstop1h 14m
American Airlines
Wed 3/254:55 pm
ORD
- GRR
Nonstop0h 59m
American Airlines
Deal found 3/3![American Airlines logo]()
$117
This Kiwi.com deal was found by Cheapflights users on 3/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/246:05 am
DTW
- STL
1 stop5h 27m
Multiple Airlines
Thu 3/2611:21 am
STL
- DTW
1 stop19h 46m
Multiple Airlines
Deal found 3/3![Multiple Airlines logo]()
$143
This American Airlines deal was found by Cheapflights users on 3/2. 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.
Tue 4/74:17 pm
GRR
- ORD
Nonstop1h 19m
American Airlines
Thu 4/97:14 am
ORD
- GRR
Nonstop1h 10m
American Airlines
Deal found 3/2![American Airlines logo]()
$154
This Kiwi.com deal was found by Cheapflights users on 3/1. 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.
Fri 4/248:49 pm
DTW
- STL
1 stop11h 01m
Frontier
Wed 4/298:23 pm
STL
- DTW
1 stop11h 42m
Frontier
Deal found 3/1![Frontier logo]()
$159
This Expedia deal was found by Cheapflights users on 2/27. 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.
Tue 4/212:20 pm
DTW
- STL
1 stop9h 59m
Frontier
Thu 4/234:59 pm
STL
- DTW
1 stop15h 25m
Frontier
Deal found 2/27![Frontier logo]()
$160
This Frontier deal was found by Cheapflights users on 2/27. 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 4/151:37 pm
DTW
- ORD
1 stop8h 40m
Frontier
Thu 4/165:50 am
ORD
- DTW
1 stop11h 56m
Frontier
Deal found 2/27![Frontier logo]()
$160
This Frontier deal was found by Cheapflights users on 2/28. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/79:02 am
DTW
- MDW
1 stop12h 05m
Frontier
Wed 4/86:00 am
MDW
- DTW
1 stop10h 00m
Frontier
Deal found 2/28![Frontier logo]()
$160
This Frontier deal was found by Cheapflights users on 2/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/55:09 pm
DTW
- ORD
1 stop6h 30m
Frontier
Fri 5/85:01 am
ORD
- DTW
1 stop10h 13m
Frontier
Deal found 2/27![Frontier logo]()
$161
This Frontier deal was found by Cheapflights users on 2/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/512:26 pm
DTW
- MDW
1 stop10h 53m
Frontier
Fri 5/86:00 am
MDW
- DTW
1 stop9h 14m
Frontier
Deal found 2/27![Frontier logo]()
$161
This Kiwi.com deal was found by Cheapflights users on 3/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1212:26 pm
DTW
- STL
1 stop19h 24m
Frontier
Thu 5/1411:21 am
STL
- DTW
1 stop20h 49m
Frontier
Deal found 3/2![Frontier logo]()
$162
This Kiwi.com deal was found by Cheapflights users on 2/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/256:00 am
DTW
- ORD
1 stop5h 20m
Spirit Airlines
Mon 3/306:01 pm
ORD
- DTW
1 stop13h 45m
Spirit Airlines
Deal found 2/28![Spirit Airlines logo]()
$162
This Kiwi.com deal was found by Cheapflights users on 2/27. 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 4/1512:48 pm
DTW
- MDW
1 stop7h 43m
Multiple Airlines
Fri 4/177:30 am
MDW
- DTW
1 stop23h 32m
Multiple Airlines
Deal found 2/27![Multiple Airlines logo]()
$162
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 4, 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 4, 2026.
This United Airlines deal was found by Cheapflights users on 3/3. 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 3/312:05 pm
DTW
- ORD
Nonstop1h 35m
United Airlines
Sat 4/47:50 pm
ORD
- DTW
Nonstop1h 27m
United Airlines
Deal found 3/3![United Airlines logo]()
$162
This Delta deal was found by Cheapflights users on 2/28. 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.
Tue 3/317:48 pm
DTW
- ORD
Nonstop1h 29m
Delta
Sat 4/49:50 am
ORD
- DTW
Nonstop1h 19m
Delta
Deal found 2/28![Delta logo]()
$171
This American Airlines deal was found by Cheapflights users on 3/4. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/195:33 am
TVC
- ORD
Nonstop1h 16m
American Airlines
Sun 6/211:44 pm
ORD
- TVC
Nonstop1h 24m
American Airlines
Deal found 3/4![American Airlines logo]()
$199
This Southwest deal was found by Cheapflights users on 3/1. 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.
Thu 4/168:15 pm
DTW
- STL
Nonstop1h 40m
Southwest
Mon 4/207:40 pm
STL
- DTW
Nonstop1h 30m
Southwest
Deal found 3/1![Southwest logo]()
$215
This Frontier deal was found by Cheapflights users on 3/3. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/72:56 pm
MDW
- STL
1 stop8h 23m
Frontier
Mon 3/92:09 pm
STL
- MDW
1 stop8h 10m
Frontier
Deal found 3/3![Frontier logo]()
$340
This Delta deal was found by Cheapflights users on 3/1. 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 4/47:53 pm
DTW
- ORD
Nonstop1h 29m
Delta
Mon 4/65:40 pm
ORD
- DTW
Nonstop1h 22m
Delta
Deal found 3/1![Delta logo]()
$171
This United Airlines deal was found by Cheapflights users on 3/3. 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.
Wed 4/16:00 am
DTW
- ORD
Nonstop1h 35m
United Airlines
Wed 4/13:47 pm
ORD
- DTW
Nonstop1h 31m
United Airlines
Deal found 3/3![United Airlines logo]()
$174
This Delta deal was found by Cheapflights users on 2/28. 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.
Tue 3/317:48 pm
DTW
- ORD
Nonstop1h 29m
Delta
Wed 4/19:50 am
ORD
- DTW
Nonstop1h 19m
Delta
Deal found 2/28![Delta logo]()
$171
This United Airlines deal was found by Cheapflights users on 2/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/148:10 pm
MBS
- ORD
Nonstop1h 30m
United Airlines
Mon 4/274:21 pm
ORD
- MBS
Nonstop1h 19m
United Airlines
Deal found 2/28![United Airlines logo]()
$179
This Delta deal was found by Cheapflights users on 2/27. 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 5/68:25 am
DTW
- MDW
Nonstop1h 22m
Delta
Sat 5/96:36 pm
MDW
- DTW
Nonstop1h 09m
Delta
Deal found 2/27![Delta logo]()
$171
This United Airlines deal was found by Cheapflights users on 2/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/158:05 pm
FNT
- ORD
Nonstop1h 35m
United Airlines
Sat 4/184:45 pm
ORD
- FNT
Nonstop1h 19m
United Airlines
Deal found 2/27![United Airlines logo]()
$179
This Southwest deal was found by Cheapflights users on 3/3. 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.
Wed 4/156:10 am
DTW
- MDW
2 stops10h 35m
Southwest
Wed 4/2210:10 am
MDW
- DTW
2 stops7h 10m
Southwest
Deal found 3/3![Southwest logo]()
$222
This American Airlines deal was found by Cheapflights users on 3/3. 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.
Mon 3/307:42 pm
GRR
- ORD
Nonstop1h 14m
American Airlines
Fri 4/37:58 pm
ORD
- GRR
Nonstop1h 07m
American Airlines
Deal found 3/3![American Airlines logo]()
$235
This United Airlines deal was found by Cheapflights users on 3/3. 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.
Thu 4/233:55 pm
FNT
- ORD
Nonstop1h 35m
United Airlines
Sat 4/258:25 pm
ORD
- FNT
Nonstop1h 23m
United Airlines
Deal found 3/3![United Airlines logo]()
$179
This Southwest deal was found by Cheapflights users on 3/2. 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.
Mon 5/48:15 pm
DTW
- STL
Nonstop1h 40m
Southwest
Thu 5/74:00 pm
STL
- DTW
1 stop6h 30m
Southwest
Deal found 3/2![Southwest logo]()
$225
This Delta deal was found by Cheapflights users on 3/2. 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.
Thu 4/212:15 pm
DTW
- MDW
Nonstop1h 14m
Delta
Mon 4/66:34 pm
MDW
- DTW
Nonstop1h 11m
Delta
Deal found 3/2![Delta logo]()
$190
This United Airlines deal was found by Cheapflights users on 2/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/108:05 pm
FNT
- ORD
Nonstop1h 35m
United Airlines
Mon 4/134:45 pm
ORD
- FNT
Nonstop1h 19m
United Airlines
Deal found 2/27![United Airlines logo]()
$179
This Delta deal was found by Cheapflights users on 3/2. 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 5/25:29 am
GRR
- ORD
1 stop3h 32m
Delta
Thu 5/147:00 am
ORD
- GRR
1 stop3h 18m
Delta
Deal found 3/2![Delta logo]()
$191
This Southwest deal was found by Cheapflights users on 3/1. 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.
Fri 4/107:00 am
DTW
- STL
Nonstop1h 45m
Southwest
Mon 4/134:00 pm
STL
- DTW
1 stop6h 30m
Southwest
Deal found 3/1![Southwest logo]()
$238
This United Airlines deal was found by Cheapflights users on 3/3. 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.
Wed 4/228:05 pm
FNT
- ORD
Nonstop1h 35m
United Airlines
Sat 4/2512:49 pm
ORD
- FNT
Nonstop1h 19m
United Airlines
Deal found 3/3![United Airlines logo]()
$179
This Delta deal was found by Cheapflights users on 2/28. 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.
Tue 4/143:55 pm
MBS
- ORD
1 stop5h 45m
Delta
Mon 4/277:00 am
ORD
- MBS
1 stop2h 56m
Delta
Deal found 2/28![Delta logo]()
$199
This Southwest deal was found by Cheapflights users on 3/1. 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 4/48:15 pm
DTW
- MDW
Nonstop1h 15m
Southwest
Mon 4/65:00 pm
MDW
- DTW
1 stop6h 15m
Southwest
Deal found 3/1![Southwest logo]()
$242
This United Airlines deal was found by Cheapflights users on 3/3. 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.
Thu 3/195:46 pm
FNT
- ORD
Nonstop1h 26m
United Airlines
Sat 3/288:10 pm
ORD
- FNT
Nonstop1h 19m
United Airlines
Deal found 3/3![United Airlines logo]()
$194
This Delta deal was found by Cheapflights users on 2/27. 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 4/153:55 pm
MBS
- ORD
1 stop5h 45m
Delta
Sat 4/1811:00 am
ORD
- MBS
1 stop3h 11m
Delta
Deal found 2/27![Delta logo]()
$199
This Southwest deal was found by Cheapflights users on 2/27. 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.
Fri 4/248:30 pm
DTW
- MDW
Nonstop1h 15m
Southwest
Tue 4/281:55 pm
MDW
- DTW
1 stop6h 20m
Southwest
Deal found 2/27![Southwest logo]()
$243
This Delta deal was found by Cheapflights users on 2/27. 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.
Sat 4/115:58 pm
MBS
- ORD
1 stop3h 24m
Delta
Sun 4/127:10 am
ORD
- MBS
1 stop3h 00m
Delta
Deal found 2/27![Delta logo]()
$199
This United Airlines deal was found by Cheapflights users on 3/3. 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.
Thu 4/28:05 pm
FNT
- ORD
Nonstop1h 35m
United Airlines
Sun 4/58:25 pm
ORD
- FNT
Nonstop1h 23m
United Airlines
Deal found 3/3![United Airlines logo]()
$199
This Southwest deal was found by Cheapflights users on 2/28. 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.
Fri 4/37:45 am
MDW
- STL
Nonstop1h 15m
Southwest
Mon 4/65:30 am
STL
- MDW
Nonstop1h 10m
Southwest
Deal found 2/28![Southwest logo]()
$244
This Delta deal was found by Cheapflights users on 3/1. 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 4/166:00 am
TVC
- ORD
1 stop5h 19m
Delta
Sat 4/1812:14 pm
ORD
- TVC
2 stops9h 49m
Delta
Deal found 3/1![Delta logo]()
$204
This Southwest deal was found by Cheapflights users on 3/3. 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.
Fri 4/243:35 pm
DTW
- STL
2 stops8h 20m
Southwest
Tue 4/281:45 pm
STL
- DTW
2 stops7h 45m
Southwest
Deal found 3/3![Southwest logo]()
$249
Last-minute flights from Michigan to IllinoisDiscover last-minute flight deals from Michigan to Illinois. Data last updated March 4, 2026 and is based on user searches.
Discover last-minute flight deals from Michigan to Illinois. Data last updated March 4, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 3/3. 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.
Tue 3/247:42 pm
GRR
- ORD
Nonstop1h 14m
American Airlines
Wed 3/254:55 pm
ORD
- GRR
Nonstop0h 59m
American Airlines
Deal found 3/3![American Airlines logo]()
$117
This Kiwi.com deal was found by Cheapflights users on 3/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/246:05 am
DTW
- STL
1 stop5h 27m
Multiple Airlines
Thu 3/2611:21 am
STL
- DTW
1 stop19h 46m
Multiple Airlines
Deal found 3/3![Multiple Airlines logo]()
$143
This Kiwi.com deal was found by Cheapflights users on 2/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/256:00 am
DTW
- ORD
1 stop5h 20m
Spirit Airlines
Mon 3/306:01 pm
ORD
- DTW
1 stop13h 45m
Spirit Airlines
Deal found 2/28![Spirit Airlines logo]()
$162
This American Airlines deal was found by Cheapflights users on 3/2. 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.
Tue 4/74:17 pm
GRR
- ORD
Nonstop1h 19m
American Airlines
Thu 4/97:14 am
ORD
- GRR
Nonstop1h 10m
American Airlines
Deal found 3/2![American Airlines logo]()
$154
This Frontier deal was found by Cheapflights users on 2/28. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/79:02 am
DTW
- MDW
1 stop12h 05m
Frontier
Wed 4/86:00 am
MDW
- DTW
1 stop10h 00m
Frontier
Deal found 2/28![Frontier logo]()
$160
This Frontier deal was found by Cheapflights users on 3/3. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/91:07 pm
DTW
- MDW
1 stop9h 14m
Frontier
Mon 4/136:00 am
MDW
- DTW
1 stop9h 55m
Frontier
Deal found 3/3![Frontier logo]()
$161
This Frontier deal was found by Cheapflights users on 2/27. 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 4/151:37 pm
DTW
- ORD
1 stop8h 40m
Frontier
Fri 4/171:27 pm
ORD
- DTW
1 stop10h 19m
Frontier
Deal found 2/27![Frontier logo]()
$160
This Kiwi.com deal was found by Cheapflights users on 2/27. 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 4/1512:48 pm
DTW
- MDW
1 stop7h 43m
Multiple Airlines
Fri 4/177:30 am
MDW
- DTW
1 stop23h 32m
Multiple Airlines
Deal found 2/27![Multiple Airlines logo]()
$162
This Frontier deal was found by Cheapflights users on 3/3. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/1710:10 pm
DTW
- ORD
1 stop13h 27m
Frontier
Fri 4/245:50 am
ORD
- DTW
1 stop9h 28m
Frontier
Deal found 3/3![Frontier logo]()
$161
This Expedia deal was found by Cheapflights users on 2/27. 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.
Tue 4/212:20 pm
DTW
- STL
1 stop9h 59m
Frontier
Thu 4/234:59 pm
STL
- DTW
1 stop15h 25m
Frontier
Deal found 2/27![Frontier logo]()
$160
This Kiwi.com deal was found by Cheapflights users on 3/1. 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.
Fri 4/248:49 pm
DTW
- STL
1 stop11h 01m
Frontier
Wed 4/298:23 pm
STL
- DTW
1 stop11h 42m
Frontier
Deal found 3/1![Frontier logo]()
$159
This Kiwi.com deal was found by Cheapflights users on 3/3. 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 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
Multiple Airlines
Tue 4/287:15 pm
ORD
- DTW
2 stops15h 23m
Multiple Airlines
Deal found 3/3![Multiple Airlines logo]()
$163
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 4, 2026.
Search for one-way flight options from Michigan to Illinois. Find affordable one-way fares based on user searches. Data last updated March 4, 2026.
This Southwest deal was found by Cheapflights users on 3/3. 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.
Tue 4/710:15 am
MDW
- STL
Nonstop1h 15m
Southwest
Deal found 3/3![Southwest logo]()
$49
This United Airlines deal was found by Cheapflights users on 3/3. 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 4/712:58 pm
GRR
- ORD
Nonstop1h 17m
United Airlines
Deal found 3/3![United Airlines logo]()
$49
This United Airlines deal was found by Cheapflights users on 3/3. 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 4/77:45 pm
ORD
- STL
Nonstop1h 28m
United Airlines
Deal found 3/3![United Airlines logo]()
$49
This American Airlines deal was found by Cheapflights users on 3/3. 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 4/2910:27 am
GRR
- ORD
Nonstop1h 21m
American Airlines
Deal found 3/3![American Airlines logo]()
$59
This United Airlines deal was found by Cheapflights users on 3/3. 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.
Wed 4/152:05 pm
DTW
- ORD
Nonstop1h 35m
United Airlines
Deal found 3/3![United Airlines logo]()
$59
This Southwest deal was found by Cheapflights users on 3/3. 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.
Wed 4/157:10 pm
DTW
- MDW
1 stop3h 40m
Southwest
Deal found 3/3![Southwest logo]()
$59
This United Airlines deal was found by Cheapflights users on 3/4. 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.
Tue 4/147:45 pm
ORD
- STL
Nonstop1h 28m
United Airlines
Deal found 3/4![United Airlines logo]()
$59
This Kiwi.com deal was found by Cheapflights users on 2/27. 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 5/55:09 pm
DTW
- MDW
1 stop6h 10m
Frontier
Deal found 2/27![Frontier logo]()
$63
This Southwest deal was found by Cheapflights users on 3/2. 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.
Wed 4/156:10 am
DTW
- ORD
1 stop7h 40m
Southwest
Deal found 3/2![Southwest logo]()
$64
This Southwest deal was found by Cheapflights users on 3/3. 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.
Tue 4/71:20 pm
DTW
- MDW
2 stops7h 05m
Southwest
Deal found 3/3![Southwest logo]()
$64
This Southwest deal was found by Cheapflights users on 3/3. 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.
Wed 4/2211:55 am
ORD
- STL
1 stop9h 20m
Southwest
Deal found 3/3![Southwest logo]()
$64
This Kiwi.com deal was found by Cheapflights users on 2/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/278:43 pm
DTW
- ORD
1 stop14h 19m
Frontier
Deal found 2/27![Frontier logo]()
$65
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 4, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $117 (American Airlines) |
One-way from | $49 (Southwest) |
Popular in | May |
Cheapest in | September |
Average price | $234 |
Good round-trip deal | $84 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 4, 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
DetroitChicago
DTW - ORD
DTWORD
Detroit Metropolitan Wayne County
Tue 3/31
2:05 pm-2:40 pm
Nonstop1h 35m
Chicago O'Hare Intl
Sat 4/4
7:50 pm-10:17 pm
Nonstop1h 27m
$162
DetroitChicago
DTW - ORD
DTWORD
Detroit Metropolitan Wayne County
Tue 3/31
7:48 pm-8:17 pm
Nonstop1h 29m
Chicago O'Hare Intl
Sat 4/4
9:50 am-12:09 pm
Nonstop1h 19m
$171
DetroitChicago
DTW - ORD
DTWORD
Detroit Metropolitan Wayne County
Sat 4/4
7:53 pm-8:22 pm
Nonstop1h 29m
Chicago O'Hare Intl
Mon 4/6
5:40 pm-8:02 pm
Nonstop1h 22m
$171
DetroitChicago
DTW - ORD
DTWORD
Detroit Metropolitan Wayne County
Tue 3/31
7:48 pm-8:17 pm
Nonstop1h 29m
Chicago O'Hare Intl
Wed 4/1
9:50 am-12:09 pm
Nonstop1h 19m
$171
DetroitChicago
DTW - MDW
DTWMDW
Detroit Metropolitan Wayne County
Wed 5/6
8:25 am-8:47 am
Nonstop1h 22m
Chicago Midway
Sat 5/9
6:36 pm-8:45 pm
Nonstop1h 09m
$171
DetroitChicago
DTW - ORD
DTWORD
Detroit Metropolitan Wayne County
Wed 4/1
6:00 am-6:35 am
Nonstop1h 35m
Chicago O'Hare Intl
Wed 4/1
3:47 pm-6:18 pm
Nonstop1h 31m
$174
Bay CityChicago
MBS - ORD
MBSORD
Bay City MBS Intl
Tue 4/14
8:10 pm-8:40 pm
Nonstop1h 30m
Chicago O'Hare Intl
Mon 4/27
4:21 pm-6:40 pm
Nonstop1h 19m
$179
FlintChicago
FNT - ORD
FNTORD
Flint Bishop
Wed 4/15
8:05 pm-8:40 pm
Nonstop1h 35m
Chicago O'Hare Intl
Sat 4/18
4:45 pm-7:04 pm
Nonstop1h 19m
$179
FlintChicago
FNT - ORD
FNTORD
Flint Bishop
Thu 4/23
3:55 pm-4:30 pm
Nonstop1h 35m
Chicago O'Hare Intl
Sat 4/25
8:25 pm-10:48 pm
Nonstop1h 23m
$179
FlintChicago
FNT - ORD
FNTORD
Flint Bishop
Fri 4/10
8:05 pm-8:40 pm
Nonstop1h 35m
Chicago O'Hare Intl
Mon 4/13
4:45 pm-7:04 pm
Nonstop1h 19m
$179
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.
GRR-ORD
DTW-STL
DTW-ORD
DTW-MDW
TVC-ORD
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
GRR-ORD
DTW-STL
DTW-ORD
DTW-MDW
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 $144). 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 4, 2026.
Unlike in the evening, when flights are generally more expensive, you can save up to 13% on flights from Michigan to Illinois by exploring options for tickets at noon.
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 February 21, 2026.
Travelers seeking maximum savings on their Michigan to Illinois flight should consider departing on Monday afternoons when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
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 4, 2026.
See what other customers who have flown with Denver Air Connection, Southwest, and Delta 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
Boarding
8.2
Comfort
8.6
Food
8.2
Crew
9.1
Overall
8.1
Entertainment
7.6
Denver Air Connection
Denver Air Connection
Boarding
8.2
Comfort
8.6
Food
8.2
Crew
9.1
Overall
8.1
Entertainment
7.6
Denver Air Connection
Boarding
8.2
Comfort
8.6
Food
8.2
Crew
9.1
Overall
8.1
Entertainment
7.6
Denver Air Connection
Boarding
8.2
Comfort
8.6
Food
8.2
Crew
9.1
Overall
8.1
Entertainment
7.6
Denver Air Connection
Boarding
8.2
Comfort
8.6
Food
8.2
Crew
9.1
Overall
8.1
Entertainment
7.6
Denver Air Connection
Boarding
8.2
Comfort
8.6
Food
8.2
Crew
9.1
Overall
8.1
Entertainment
7.6
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
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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Top destinations
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 4, 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 4, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$91 | Average$290 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$91 | Average$305 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$94 | Average$293 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$97 | Average$239 | FlexibilityNo cancel fee | On-time63% |