$65+ Cheap flights from Detroit (DTT) 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 6/22. Fares are subject to change and may not be available on all flights or dates of travel.
DTT — ORD
May 30 — Jun 61
Round-trip
1 adult, Economy
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Find cheap flights from Detroit to Illinois with Cheapflights
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Cheapest flights from Detroit to IllinoisExplore the most affordable flight options available from Detroit to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 30, 2026.
Explore the most affordable flight options available from Detroit to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 30, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/28. 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 5/276:05 pm
DTW
- STL
1 stop24h 28m
Frontier
Tue 6/26:33 pm
STL
- DTW
1 stop21h 40m
Frontier
Deal found 4/28![Frontier logo]()
$129
This Kiwi.com deal was found by Cheapflights users on 4/26. 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.
Fri 6/56:05 pm
DTW
- STL
1 stop15h 50m
Frontier
Mon 6/85:27 pm
STL
- DTW
1 stop6h 12m
Frontier
Deal found 4/26![Frontier logo]()
$133
This Kiwi.com deal was found by Cheapflights users on 4/28. 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.
Thu 6/46:50 am
DTW
- STL
1 stop11h 43m
Frontier
Tue 6/96:31 pm
STL
- DTW
1 stop21h 22m
Frontier
Deal found 4/28![Frontier logo]()
$144
This Kiwi.com deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” 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 6/46:30 am
DTW
- STL
1 stop12h 03m
Multiple Airlines
Tue 6/96:31 pm
STL
- DTW
1 stop21h 22m
Multiple Airlines
Deal found 4/29![Multiple Airlines logo]()
$146
This Southwest deal was found by Cheapflights users on 4/26. 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.
Wed 6/105:35 am
DTW
- MDW
1 stop4h 05m
Southwest
Wed 6/176:10 pm
MDW
- DTW
Nonstop1h 10m
Southwest
Deal found 4/26![Southwest logo]()
$147
This Southwest deal was found by Cheapflights users on 4/28. 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 5/268:15 am
DTW
- MDW
Nonstop1h 15m
Southwest
Tue 6/210:10 am
MDW
- DTW
2 stops7h 10m
Southwest
Deal found 4/28![Southwest logo]()
$152
This Kiwi.com deal was found by Cheapflights users on 4/28. 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.
Tue 5/261:59 pm
DTW
- STL
1 stop19h 56m
Frontier
Tue 6/26:33 pm
STL
- DTW
1 stop21h 40m
Frontier
Deal found 4/28![Frontier logo]()
$158
This Kiwi.com deal was found by Cheapflights users on 4/27. 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 5/206:05 pm
DTW
- ORD
1 stop14h 46m
Frontier
Wed 5/271:50 pm
ORD
- DTW
1 stop9h 49m
Frontier
Deal found 4/27![Frontier logo]()
$159
This Orbitz deal was found by Cheapflights users on 4/25. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/176:50 am
DTW
- STL
1 stop11h 04m
Frontier
Wed 5/205:27 pm
STL
- DTW
1 stop6h 12m
Frontier
Deal found 4/25![Frontier logo]()
$160
This Frontier deal was found by Cheapflights users on 4/28. 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.
Mon 5/1812:44 pm
DTW
- ORD
1 stop11h 29m
Frontier
Wed 5/201:59 pm
ORD
- DTW
1 stop9h 40m
Frontier
Deal found 4/28![Frontier logo]()
$160
This Frontier deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/126:50 am
DTW
- MDW
1 stop5h 19m
Frontier
Wed 5/2012:04 pm
MDW
- DTW
1 stop11h 35m
Frontier
Deal found 4/27![Frontier logo]()
$160
This Kiwi.com deal was found by Cheapflights users on 4/28. 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.
Thu 5/281:59 pm
DTW
- MDW
1 stop9h 03m
Frontier
Thu 6/412:27 pm
MDW
- DTW
1 stop11h 11m
Frontier
Deal found 4/28![Frontier logo]()
$161
Best flights from Detroit to IllinoisDiscover carefully curated flight deals from Detroit to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 30, 2026.
Discover carefully curated flight deals from Detroit to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 30, 2026.
This Southwest deal was found by Cheapflights users on 4/28. 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 5/268:15 am
DTW
- MDW
Nonstop1h 15m
Southwest
Tue 6/210:10 am
MDW
- DTW
2 stops7h 10m
Southwest
Deal found 4/28![Southwest logo]()
$152
This Delta deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” 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 5/2010:00 am
DTW
- ORD
Nonstop1h 29m
Delta
Mon 5/257:00 pm
ORD
- DTW
Nonstop1h 29m
Delta
Deal found 4/29![Delta logo]()
$164
This American Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” 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 6/27:52 am
DTW
- ORD
Nonstop1h 43m
American Airlines
Thu 6/48:00 am
ORD
- DTW
1 stop6h 28m
American Airlines
Deal found 4/29![American Airlines logo]()
$207
This Kiwi.com deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2712:44 pm
DTW
- SPI
1 stop7h 07m
Multiple Airlines
Wed 6/37:31 pm
SPI
- DTW
1 stop15h 29m
Multiple Airlines
Deal found 4/29![Multiple Airlines logo]()
$281
This United Airlines deal was found by Cheapflights users on 4/28. 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.
Fri 7/37:45 pm
DTW
- PIA
1 stop5h 50m
United Airlines
Mon 7/65:33 pm
PIA
- DTW
1 stop3h 46m
United Airlines
Deal found 4/28![United Airlines logo]()
$284
This Delta deal was found by Cheapflights users on 4/25. 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 5/238:15 am
DTW
- ORD
Nonstop1h 30m
Delta
Wed 5/275:19 pm
ORD
- DTW
Nonstop1h 25m
Delta
Deal found 4/25![Delta logo]()
$164
This Delta deal was found by Cheapflights users on 4/25. 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 5/237:45 pm
DTW
- ORD
Nonstop1h 29m
Delta
Tue 5/267:00 pm
ORD
- DTW
Nonstop1h 29m
Delta
Deal found 4/25![Delta logo]()
$164
This Southwest deal was found by Cheapflights users on 4/25. 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.
Sat 5/168:35 am
DTW
- MDW
Nonstop1h 20m
Southwest
Mon 5/188:00 am
MDW
- DTW
Nonstop1h 10m
Southwest
Deal found 4/25![Southwest logo]()
$191
This Delta deal was found by Cheapflights users on 4/25. 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.
Mon 5/254:00 pm
DTW
- ORD
Nonstop1h 29m
Delta
Wed 5/2711:09 am
ORD
- DTW
Nonstop1h 21m
Delta
Deal found 4/25![Delta logo]()
$164
This Delta deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/212:35 pm
DTW
- ORD
Nonstop1h 26m
Delta
Thu 6/411:09 am
ORD
- DTW
Nonstop1h 21m
Delta
Deal found 4/29![Delta logo]()
$164
This Southwest deal was found by Cheapflights users on 4/28. 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.
Thu 5/288:15 pm
DTW
- STL
Nonstop1h 40m
Southwest
Mon 6/14:40 pm
STL
- DTW
1 stop3h 30m
Southwest
Deal found 4/28![Southwest logo]()
$223
This American Airlines deal was found by Cheapflights users on 4/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/287:42 am
DTW
- CMI
1 stop4h 25m
American Airlines
Thu 6/46:12 am
CMI
- DTW
1 stop5h 20m
American Airlines
Deal found 4/28![American Airlines logo]()
$278
This Delta deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” 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 5/2312:30 pm
DTW
- ORD
Nonstop1h 26m
Delta
Mon 5/257:00 pm
ORD
- DTW
Nonstop1h 29m
Delta
Deal found 4/30![Delta logo]()
$191
This Southwest deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/218:40 am
DTW
- MDW
Nonstop1h 20m
Southwest
Sun 5/248:55 am
MDW
- DTW
Nonstop1h 10m
Southwest
Deal found 4/26![Southwest logo]()
$233
This United Airlines deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” 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 5/2711:05 am
DTW
- PIA
1 stop3h 52m
United Airlines
Wed 6/32:39 pm
PIA
- DTW
1 stop4h 43m
United Airlines
Deal found 4/30![United Airlines logo]()
$289
This Delta deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” 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 5/288:15 am
DTW
- ORD
Nonstop1h 30m
Delta
Thu 5/282:00 pm
ORD
- DTW
Nonstop1h 26m
Delta
Deal found 4/29![Delta logo]()
$191
This Southwest deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/45:45 pm
DTW
- STL
2 stops6h 00m
Southwest
Tue 6/95:40 am
STL
- DTW
2 stops5h 55m
Southwest
Deal found 4/29![Southwest logo]()
$235
This American Airlines deal was found by Cheapflights users on 4/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/226:40 am
DTW
- BMI
1 stop5h 23m
American Airlines
Fri 5/2911:34 am
BMI
- DTW
1 stop4h 25m
American Airlines
Deal found 4/28![American Airlines logo]()
$289
This United Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” 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 5/2710:13 am
DTW
- MLI
2 stops7h 35m
United Airlines
Wed 6/310:40 am
MLI
- DTW
1 stop3h 49m
United Airlines
Deal found 4/29![United Airlines logo]()
$294
This Delta deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” 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 5/217:45 pm
DTW
- ORD
Nonstop1h 29m
Delta
Mon 5/257:00 pm
ORD
- DTW
Nonstop1h 29m
Delta
Deal found 4/29![Delta logo]()
$191
This Southwest deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/218:15 pm
DTW
- MDW
1 stop3h 30m
Southwest
Mon 5/258:00 am
MDW
- DTW
Nonstop1h 10m
Southwest
Deal found 4/29![Southwest logo]()
$236
This Kiwi.com deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” 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 5/298:12 pm
DTW
- RFD
1 stop14h 09m
Multiple Airlines
Fri 6/59:10 pm
RFD
- DTW
2 stops20h 33m
Multiple Airlines
Deal found 4/29![Multiple Airlines logo]()
$350
This Delta deal was found by Cheapflights users on 4/28. 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.
Thu 5/288:25 am
DTW
- MDW
Nonstop1h 18m
Delta
Thu 6/49:22 am
MDW
- DTW
Nonstop1h 13m
Delta
Deal found 4/28![Delta logo]()
$191
This United Airlines deal was found by Cheapflights users on 4/27. 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.
Thu 7/168:50 am
DTW
- MLI
1 stop4h 49m
United Airlines
Sun 7/193:52 pm
MLI
- DTW
1 stop5h 27m
United Airlines
Deal found 4/27![United Airlines logo]()
$309
This Kiwi.com deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/136:05 pm
DTW
- RFD
2 stops16h 42m
Multiple Airlines
Sun 5/1710:37 am
RFD
- DTW
1 stop12h 16m
Multiple Airlines
Deal found 4/29![Multiple Airlines logo]()
$350
This American Airlines deal was found by Cheapflights users on 4/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/126:00 am
DTW
- BMI
1 stop5h 46m
American Airlines
Sat 5/1611:16 am
BMI
- DTW
1 stop4h 46m
American Airlines
Deal found 4/27![American Airlines logo]()
$319
This Delta deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” 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 5/288:25 am
DTW
- MDW
Nonstop1h 18m
Delta
Thu 5/281:22 pm
MDW
- DTW
Nonstop1h 13m
Delta
Deal found 4/29![Delta logo]()
$191
This Southwest deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” 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 5/201:40 pm
DTW
- MDW
Nonstop1h 10m
Southwest
Fri 5/222:10 pm
MDW
- DTW
1 stop7h 00m
Southwest
Deal found 4/29![Southwest logo]()
$255
This United Airlines deal was found by Cheapflights users on 4/26. 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.
Fri 6/129:12 pm
DTW
- MLI
1 stop3h 47m
United Airlines
Fri 6/192:31 pm
MLI
- DTW
1 stop6h 43m
United Airlines
Deal found 4/26![United Airlines logo]()
$309
This Kiwi.com deal was found by Cheapflights users on 4/28. 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.
Mon 5/2512:44 pm
DTW
- BMI
1 stop22h 23m
Multiple Airlines
Fri 5/299:41 am
BMI
- DTW
2 stops25h 54m
Multiple Airlines
Deal found 4/28![Multiple Airlines logo]()
$358
Last-minute flights from Detroit to IllinoisDiscover last-minute flight deals from Detroit to Illinois. Data last updated April 30, 2026 and is based on user searches.
Discover last-minute flight deals from Detroit to Illinois. Data last updated April 30, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/126:50 am
DTW
- MDW
1 stop5h 19m
Frontier
Wed 5/2012:04 pm
MDW
- DTW
1 stop11h 35m
Frontier
Deal found 4/27![Frontier logo]()
$160
This Orbitz deal was found by Cheapflights users on 4/25. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/176:50 am
DTW
- STL
1 stop11h 04m
Frontier
Wed 5/205:27 pm
STL
- DTW
1 stop6h 12m
Frontier
Deal found 4/25![Frontier logo]()
$160
This Frontier deal was found by Cheapflights users on 4/28. 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.
Mon 5/1812:44 pm
DTW
- ORD
1 stop11h 29m
Frontier
Wed 5/201:59 pm
ORD
- DTW
1 stop9h 40m
Frontier
Deal found 4/28![Frontier logo]()
$160
This Kiwi.com deal was found by Cheapflights users on 4/27. 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 5/206:05 pm
DTW
- ORD
1 stop14h 46m
Frontier
Wed 5/271:50 pm
ORD
- DTW
1 stop9h 49m
Frontier
Deal found 4/27![Frontier logo]()
$159
This Delta deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/237:45 pm
DTW
- ORD
Nonstop1h 29m
Delta
Tue 5/262:00 pm
ORD
- DTW
Nonstop1h 26m
Delta
Deal found 4/29![Delta logo]()
$164
This Southwest deal was found by Cheapflights users on 4/28. 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 5/268:15 am
DTW
- MDW
Nonstop1h 15m
Southwest
Tue 6/210:10 am
MDW
- DTW
2 stops7h 10m
Southwest
Deal found 4/28![Southwest logo]()
$152
This Kiwi.com deal was found by Cheapflights users on 4/28. 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.
Tue 5/261:59 pm
DTW
- STL
1 stop19h 56m
Frontier
Tue 6/26:33 pm
STL
- DTW
1 stop21h 40m
Frontier
Deal found 4/28![Frontier logo]()
$158
This Kiwi.com deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” 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 5/261:59 pm
DTW
- STL
1 stop19h 56m
Frontier
Wed 5/275:27 pm
STL
- DTW
1 stop6h 12m
Frontier
Deal found 4/29![Frontier logo]()
$163
This Delta deal was found by Cheapflights users on 4/28. 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 5/268:25 am
DTW
- MDW
Nonstop1h 18m
Delta
Thu 5/281:22 pm
MDW
- DTW
Nonstop1h 13m
Delta
Deal found 4/28![Delta logo]()
$164
This Kiwi.com deal was found by Cheapflights users on 4/28. 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 5/276:05 pm
DTW
- STL
1 stop24h 28m
Frontier
Tue 6/26:33 pm
STL
- DTW
1 stop21h 40m
Frontier
Deal found 4/28![Frontier logo]()
$129
This Kiwi.com deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/276:05 pm
DTW
- STL
1 stop24h 28m
Frontier
Wed 6/35:27 pm
STL
- DTW
1 stop6h 12m
Frontier
Deal found 4/29![Frontier logo]()
$164
This Kiwi.com deal was found by Cheapflights users on 4/28. 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.
Thu 5/281:59 pm
DTW
- MDW
1 stop9h 03m
Frontier
Thu 6/412:27 pm
MDW
- DTW
1 stop11h 11m
Frontier
Deal found 4/28![Frontier logo]()
$161
One-way flights from Detroit to IllinoisSearch for one-way flight options from Detroit to Illinois. Find affordable one-way fares based on user searches. Data last updated April 30, 2026.
Search for one-way flight options from Detroit to Illinois. Find affordable one-way fares based on user searches. Data last updated April 30, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/27. 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 6/225:38 pm
DTW
- STL
1 stop24h 52m
Frontier
Deal found 4/27![Frontier logo]()
$65
This Delta deal was found by Cheapflights users on 4/28. 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 5/268:15 am
DTW
- ORD
Nonstop1h 30m
Delta
Deal found 4/28![Delta logo]()
$69
This Delta deal was found by Cheapflights users on 4/26. 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.
Tue 5/198:25 am
DTW
- MDW
Nonstop1h 18m
Delta
Deal found 4/26![Delta logo]()
$69
This Frontier deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” 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 5/231:20 pm
DTW
- STL
1 stop7h 03m
Frontier
Deal found 4/29![Frontier logo]()
$70
This Frontier deal was found by Cheapflights users on 4/25. 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 5/162:40 pm
DTW
- ORD
1 stop6h 11m
Frontier
Deal found 4/25![Frontier logo]()
$70
This Travelocity deal was found by Cheapflights users on 4/26. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/196:50 am
DTW
- MDW
1 stop5h 19m
Frontier
Deal found 4/26![Frontier logo]()
$70
This Kiwi.com deal was found by Cheapflights users on 4/25. 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.
Sun 5/241:59 pm
DTW
- STL
1 stop19h 56m
Frontier
Deal found 4/25![Frontier logo]()
$71
This Frontier deal was found by Cheapflights users on 4/26. 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.
Tue 5/191:31 pm
DTW
- ORD
1 stop7h 20m
Frontier
Deal found 4/26![Frontier logo]()
$72
This Kiwi.com deal was found by Cheapflights users on 4/28. 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 5/276:05 pm
DTW
- ORD
1 stop14h 50m
Frontier
Deal found 4/28![Frontier logo]()
$73
This Kiwi.com deal was found by Cheapflights users on 4/28. 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.
Thu 5/216:50 am
DTW
- STL
1 stop10h 25m
Frontier
Deal found 4/28![Frontier logo]()
$75
This Kiwi.com deal was found by Cheapflights users on 4/26. 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.
Tue 5/261:59 pm
DTW
- ORD
1 stop18h 56m
Frontier
Deal found 4/26![Frontier logo]()
$75
This Kiwi.com deal was found by Cheapflights users on 4/28. 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.
Thu 5/281:59 pm
DTW
- ORD
1 stop18h 56m
Frontier
Deal found 4/28![Frontier logo]()
$76
Find flight deals from Detroit to Illinois
Keep the following information in mind while searching for Detroit to Illinois flight deals. Data was last updated April 30, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $129 (Kiwi.com) |
One-way from | $65 (Kiwi.com) |
Popular in | June |
Cheapest in | September |
Average price | $318 |
Good round-trip deal | $393 or less |
Good one-way deal | $162 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Detroit 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 April 30, 2026.
Use the filters below to find and compare flights from Detroit to Illinois that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
DetroitChicago
DTW - MDW
DTWMDW
Detroit Metropolitan Wayne County
Tue 5/26
8:15 am-8:30 am
Nonstop1h 15m
Chicago Midway
Tue 6/2
10:10 am-6:20 pm
2 stops7h 10m
$152
DetroitChicago
DTW - ORD
DTWORD
Detroit Metropolitan Wayne County
Wed 5/20
10:00 am-10:29 am
Nonstop1h 29m
Chicago O'Hare Intl
Mon 5/25
7:00 pm-9:29 pm
Nonstop1h 29m
$164
DetroitChicago
DTW - ORD
DTWORD
Detroit Metropolitan Wayne County
Sat 5/23
8:15 am-8:45 am
Nonstop1h 30m
Chicago O'Hare Intl
Wed 5/27
5:19 pm-7:44 pm
Nonstop1h 25m
$164
DetroitChicago
DTW - ORD
DTWORD
Detroit Metropolitan Wayne County
Sat 5/23
7:45 pm-8:14 pm
Nonstop1h 29m
Chicago O'Hare Intl
Tue 5/26
7:00 pm-9:29 pm
Nonstop1h 29m
$164
DetroitChicago
DTW - ORD
DTWORD
Detroit Metropolitan Wayne County
Mon 5/25
4:00 pm-4:29 pm
Nonstop1h 29m
Chicago O'Hare Intl
Wed 5/27
11:09 am-1:30 pm
Nonstop1h 21m
$164
DetroitChicago
DTW - ORD
DTWORD
Detroit Metropolitan Wayne County
Tue 6/2
12:35 pm-1:01 pm
Nonstop1h 26m
Chicago O'Hare Intl
Thu 6/4
11:09 am-1:30 pm
Nonstop1h 21m
$164
Quickest round-trip
DetroitChicago
DTW - MDW
DTWMDW
Detroit Metropolitan Wayne County
Sat 5/16
8:35 am-8:55 am
Nonstop1h 20m
Chicago Midway
Mon 5/18
8:00 am-10:10 am
Nonstop1h 10m
$191
DetroitChicago
DTW - ORD
DTWORD
Detroit Metropolitan Wayne County
Sat 5/23
12:30 pm-12:56 pm
Nonstop1h 26m
Chicago O'Hare Intl
Mon 5/25
7:00 pm-9:29 pm
Nonstop1h 29m
$191
DetroitChicago
DTW - ORD
DTWORD
Detroit Metropolitan Wayne County
Thu 5/28
8:15 am-8:45 am
Nonstop1h 30m
Chicago O'Hare Intl
Thu 5/28
2:00 pm-4:26 pm
Nonstop1h 26m
$191
DetroitChicago
DTW - ORD
DTWORD
Detroit Metropolitan Wayne County
Thu 5/21
7:45 pm-8:14 pm
Nonstop1h 29m
Chicago O'Hare Intl
Mon 5/25
7:00 pm-9:29 pm
Nonstop1h 29m
$191
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Detroit to Illinois
Have a flexible travel schedule? Discover the best time to fly to Illinois from Detroit with our price prediction graph.
DTW-STL
DTW-ORD
DTW-MDW
DTW-SPI
DTW-PIA
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 Detroit to Illinois
DTT-USIL
DTW-STL
DTW-ORD
DTW-MDW
DTW-SPI
How far ahead should I book a flight from Detroit to Illinois?
The best time to book flights from Detroit to Illinois is 86 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from Detroit to Illinois?
Currently, May is the cheapest month in which you can book a flight from Detroit to Illinois (average of $38). Flying from Detroit to Illinois in March is currently the most expensive (average of $111). 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 DTT to IL?
Find hourly flight availability from Detroit 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 April 30, 2026.
It’s typically best to fly out from Detroit to Illinois in the morning. Doing so could potentially save you 30% on the flight price compared to flying at noon, which is usually more expensive.
What is the cheapest day to fly from Detroit to Illinois?
Use this chart to determine the cheapest time to fly round-trip from Detroit to Illinois. Price data was last updated on April 25, 2026.
Travelers seeking maximum savings on their Detroit to Illinois flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
Weekly flight availability from Detroit to Illinois
Explore weekly flight availability from Detroit 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 April 30, 2026.
The most flights from DTT to USIL are scheduled on a Thursday (90 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (52 on average).
How much does it cost to fly round-trip from Detroit 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 April 30, 2026.
Read through reviews of airlines operating flights from Detroit to Illinois, such as Southwest,Delta, andUnited Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Overall
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Overall
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Overall
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Overall
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Overall
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Related info for your journey
Find useful and relevant information for your journey from Detroit to Illinois. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Detroit 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 Detroit to Illinois by cabin class
Find flights from Detroit to Illinois, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Detroit and Illinois flights
Browse other Detroit and Illinois flight options. Last updated on April 30, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Detroit to Illinois flights
Consider these flights traveling from Detroit to Illinois.
Top 4 airlines flying from Detroit to Illinois
Discover the top 4 airlines that operate flights from Detroit 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 April 30, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$97 | Average$347 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$97 | Average$276 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$97 | Average$317 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$117 | Average$272 | FlexibilityNo cancel fee | On-time71% |