$62+ Cheap flights from Illinois to Detroit (DTT)
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 8/31. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — DTT
Sep 3 — Sep 101
Round-trip
1 adult, Economy
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Find cheap flights from Illinois to Detroit 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 Illinois to DetroitExplore the most affordable flight options available from Illinois to Detroit. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 4, 2026.
Explore the most affordable flight options available from Illinois to Detroit. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 4, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/76:17 pm -
1 stop14h 03m
Mon 9/147:00 am -
1 stop7h 10m
Deal found 7/30![Frontier logo]()
$127
This Kiwi.com deal was found by Cheapflights users on 7/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/76:17 pm -
1 stop14h 03m
Tue 9/153:25 pm -
1 stop22h 45m
Deal found 7/30![Frontier logo]()
$129
This Kiwi.com deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 9/142:29 pm -
1 stop9h 13m
Mon 9/217:00 am -
1 stop7h 10m
Deal found 7/31![Frontier logo]()
$131
This Kiwi.com deal was found by Cheapflights users on 7/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/112:29 pm -
1 stop9h 13m
Mon 9/147:00 am -
1 stop7h 10m
Deal found 7/30![Frontier logo]()
$133
This Kiwi.com deal was found by Cheapflights users on 7/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/76:17 pm -
1 stop14h 03m
Thu 9/173:25 pm -
1 stop22h 45m
Deal found 7/30![Frontier logo]()
$134
This Kiwi.com deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 10/52:29 pm -
1 stop9h 13m
Wed 10/77:00 am -
1 stop27h 40m
Deal found 7/31![Frontier logo]()
$135
This Kiwi.com deal was found by Cheapflights users on 7/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1410:35 am -
1 stop13h 07m
Mon 10/193:38 pm -
1 stop19h 02m
Deal found 7/30![Frontier logo]()
$136
This Kiwi.com deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 10/22:29 pm -
1 stop9h 13m
Sun 10/43:25 pm -
1 stop22h 45m
Deal found 7/31![Frontier logo]()
$138
This Kiwi.com deal was found by Cheapflights users on 7/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/112:29 pm -
1 stop9h 13m
Thu 9/173:25 pm -
1 stop22h 45m
Deal found 7/30![Frontier logo]()
$139
This Kiwi.com deal was found by Cheapflights users on 8/3. 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.
Thu 10/1510:35 am -
1 stop13h 07m
Sat 10/173:38 pm -
1 stop19h 02m
Deal found 8/3![Frontier logo]()
$140
This Kiwi.com deal was found by Cheapflights users on 8/2. 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.
Sun 10/119:33 pm -
1 stop16h 10m
Wed 10/213:38 pm -
1 stop5h 50m
Deal found 8/2![Frontier logo]()
$221
This Delta deal was found by Cheapflights users on 7/30. 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.
Fri 8/217:30 pm -
Nonstop1h 29m
Sat 8/2210:15 am -
Nonstop1h 27m
Deal found 7/30![Delta logo]()
$222
Best flights from Illinois to DetroitDiscover carefully curated flight deals from Illinois to Detroit that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 4, 2026.
Discover carefully curated flight deals from Illinois to Detroit that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 4, 2026.
This Southwest deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 8/2612:50 pm -
2 stops7h 40m
Wed 9/25:35 am -
2 stops6h 45m
Deal found 7/31![Southwest logo]()
$207
This Delta deal was found by Cheapflights users on 7/30. 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.
Sun 9/138:55 am -
Nonstop1h 26m
Sun 9/207:35 am -
Nonstop1h 21m
Deal found 7/30![Delta logo]()
$227
This United Airlines deal was found by Cheapflights users on 7/30. 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.
Sun 9/277:45 pm -
Nonstop1h 30m
Sun 10/45:30 am -
Nonstop1h 29m
Deal found 7/30![United Airlines logo]()
$227
This American Airlines deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/275:00 am -
1 stop3h 29m
Sat 8/2912:40 pm -
1 stop5h 19m
Deal found 8/3![American Airlines logo]()
$299
This Kiwi.com deal was found by Cheapflights users on 7/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/294:29 pm -
2 stops17h 43m
Sat 9/59:49 am -
1 stop7h 00m
Deal found 7/30![Multiple Airlines logo]()
$310
This Southwest deal was found by Cheapflights users on 7/30. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/911:10 am -
Nonstop1h 30m
Fri 9/116:55 am -
Nonstop1h 50m
Deal found 7/30![Southwest logo]()
$217
This Delta deal was found by Cheapflights users on 7/30. 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.
Fri 9/47:30 pm -
Nonstop1h 29m
Sun 9/137:35 am -
Nonstop1h 21m
Deal found 7/30![Delta logo]()
$227
This United Airlines deal was found by Cheapflights users on 7/30. 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.
Fri 10/168:50 am -
Nonstop1h 34m
Sun 10/185:30 am -
Nonstop1h 29m
Deal found 7/30![United Airlines logo]()
$227
This Delta deal was found by Cheapflights users on 7/30. 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.
Fri 9/46:42 pm -
Nonstop1h 18m
Sun 9/138:45 am -
Nonstop1h 22m
Deal found 7/30![Delta logo]()
$227
This Southwest deal was found by Cheapflights users on 8/3. 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.
Sat 9/57:55 am -
Nonstop1h 20m
Sun 9/64:45 pm -
1 stop6h 50m
Deal found 8/3![Southwest logo]()
$227
This United Airlines deal was found by Cheapflights users on 8/3. 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.
Fri 9/119:00 am -
Nonstop1h 27m
Sat 9/129:15 am -
Nonstop1h 28m
Deal found 8/3![United Airlines logo]()
$233
This Southwest deal was found by Cheapflights users on 7/30. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/125:55 am -
1 stop5h 35m
Sat 9/194:45 pm -
Nonstop1h 10m
Deal found 7/30![Southwest logo]()
$227
This Delta deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 9/147:05 am -
Nonstop1h 25m
Mon 9/213:50 pm -
Nonstop1h 23m
Deal found 7/31![Delta logo]()
$249
This United Airlines deal was found by Cheapflights users on 8/3. 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.
Mon 8/319:33 pm -
Nonstop1h 26m
Mon 9/76:10 pm -
Nonstop1h 33m
Deal found 8/3![United Airlines logo]()
$249
This American Airlines deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/62:32 pm -
1 stop6h 02m
Sun 11/89:10 pm -
1 stop3h 49m
Deal found 8/2![American Airlines logo]()
$319
This Southwest deal was found by Cheapflights users on 7/30. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/272:35 pm -
2 stops6h 40m
Thu 9/38:55 am -
Nonstop1h 20m
Deal found 7/30![Southwest logo]()
$242
This Delta deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 10/107:10 am -
Nonstop1h 31m
Wed 10/1412:33 pm -
Nonstop1h 26m
Deal found 7/31![Delta logo]()
$249
This Kiwi.com deal was found by Cheapflights users on 8/2. 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.
Sat 8/224:29 pm -
1 stop15h 25m
Fri 8/288:46 pm -
2 stops20h 03m
Deal found 8/2![Multiple Airlines logo]()
$353
This Delta deal was found by Cheapflights users on 8/2. 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.
Wed 9/168:55 am -
Nonstop1h 26m
Wed 9/2312:30 pm -
Nonstop1h 29m
Deal found 8/2![Delta logo]()
$249
This Southwest deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 9/148:15 am -
Nonstop1h 15m
Mon 9/211:20 pm -
Nonstop1h 10m
Deal found 7/31![Southwest logo]()
$249
This United Airlines deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 8/2810:41 am -
1 stop5h 19m
Fri 9/45:25 am -
1 stop5h 41m
Deal found 7/31![United Airlines logo]()
$299
This Delta deal was found by Cheapflights users on 8/2. 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 10/158:29 am -
Nonstop1h 23m
Mon 10/195:59 pm -
Nonstop1h 30m
Deal found 8/2![Delta logo]()
$249
This Southwest deal was found by Cheapflights users on 8/1. 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.
Wed 9/168:35 am -
Nonstop1h 20m
Thu 9/171:20 pm -
Nonstop1h 10m
Deal found 8/1![Southwest logo]()
$249
This American Airlines deal was found by Cheapflights users on 7/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/255:02 am -
1 stop3h 45m
Sat 9/268:47 pm -
1 stop4h 16m
Deal found 7/30![American Airlines logo]()
$369
This United Airlines deal was found by Cheapflights users on 8/3. 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.
Fri 10/96:15 am -
1 stop4h 09m
Sun 10/117:30 am -
1 stop3h 36m
Deal found 8/3![United Airlines logo]()
$299
This Delta deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/178:55 am -
Nonstop1h 26m
Thu 9/245:55 pm -
Nonstop1h 31m
Deal found 8/3![Delta logo]()
$249
This American Airlines deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/254:13 pm -
1 stop4h 24m
Wed 12/29:24 pm -
1 stop3h 35m
Deal found 8/1![American Airlines logo]()
$377
This Southwest deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 8/2710:10 am -
Nonstop1h 30m
Thu 8/277:30 pm -
1 stop3h 35m
Deal found 7/31![Southwest logo]()
$259
This United Airlines deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 8/218:14 am -
1 stop4h 11m
Wed 8/2612:35 pm -
1 stop3h 34m
Deal found 7/31![United Airlines logo]()
$299
This Delta deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/158:55 am -
Nonstop1h 26m
Tue 9/223:50 pm -
Nonstop1h 23m
Deal found 8/1![Delta logo]()
$249
Last-minute flights from Illinois to DetroitDiscover last-minute flight deals from Illinois to Detroit. Data last updated August 4, 2026 and is based on user searches.
Discover last-minute flight deals from Illinois to Detroit. Data last updated August 4, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 7/30. 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.
Fri 8/217:30 pm -
Nonstop1h 29m
Sat 8/2210:15 am -
Nonstop1h 27m
Deal found 7/30![Delta logo]()
$222
This Southwest deal was found by Cheapflights users on 7/30. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/216:40 pm -
Nonstop1h 10m
Sat 8/224:45 pm -
Nonstop1h 10m
Deal found 7/30![Southwest logo]()
$222
This Kiwi.com deal was found by Cheapflights users on 7/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/76:17 pm -
1 stop14h 03m
Mon 9/147:00 am -
1 stop7h 10m
Deal found 7/30![Frontier logo]()
$127
This Kiwi.com deal was found by Cheapflights users on 7/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/76:17 pm -
1 stop14h 03m
Tue 9/153:25 pm -
1 stop22h 45m
Deal found 7/30![Frontier logo]()
$129
This Kiwi.com deal was found by Cheapflights users on 7/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/76:17 pm -
1 stop14h 03m
Thu 9/173:25 pm -
1 stop22h 45m
Deal found 7/30![Frontier logo]()
$134
This Kiwi.com deal was found by Cheapflights users on 7/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/76:17 pm -
1 stop14h 03m
Fri 9/187:00 am -
1 stop7h 10m
Deal found 7/30![Frontier logo]()
$153
This Kiwi.com deal was found by Cheapflights users on 7/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/85:27 pm -
1 stop15h 25m
Mon 9/147:00 am -
1 stop7h 10m
Deal found 7/30![Frontier logo]()
$147
This Kiwi.com deal was found by Cheapflights users on 7/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/92:29 pm -
1 stop7h 17m
Fri 9/117:00 am -
1 stop7h 10m
Deal found 7/30![Frontier logo]()
$145
This Kiwi.com deal was found by Cheapflights users on 7/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/112:29 pm -
1 stop9h 13m
Mon 9/147:00 am -
1 stop7h 10m
Deal found 7/30![Frontier logo]()
$133
This Kiwi.com deal was found by Cheapflights users on 7/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/112:29 pm -
1 stop9h 13m
Thu 9/173:25 pm -
1 stop22h 45m
Deal found 7/30![Frontier logo]()
$139
This Kiwi.com deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 9/142:29 pm -
1 stop9h 13m
Mon 9/217:00 am -
1 stop7h 10m
Deal found 7/31![Frontier logo]()
$131
This Kiwi.com deal was found by Cheapflights users on 7/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/246:20 am -
1 stop12h 42m
Sat 9/263:25 pm -
2 stops15h 13m
Deal found 7/30![Frontier logo]()
$223
One-way flights from Illinois to DetroitSearch for one-way flight options from Illinois to Detroit. Find affordable one-way fares based on user searches. Data last updated August 4, 2026.
Search for one-way flight options from Illinois to Detroit. Find affordable one-way fares based on user searches. Data last updated August 4, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 8/316:17 pm -
1 stop29h 47m
Deal found 7/31![Frontier logo]()
$62
This Kiwi.com deal was found by Cheapflights users on 8/1. 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.
Mon 9/76:17 pm -
1 stop14h 03m
Deal found 8/1![Frontier logo]()
$63
This Trip.com deal was found by Cheapflights users on 8/1. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/112:29 pm -
1 stop9h 13m
Deal found 8/1![Frontier logo]()
$67
This Trip.com deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/1510:35 am -
1 stop13h 07m
Deal found 7/31![Frontier logo]()
$68
This Trip.com deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/142:29 pm -
1 stop20h 36m
Deal found 7/31![Frontier logo]()
$69
This Kiwi.com deal was found by Cheapflights users on 8/1. 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.
Mon 10/52:29 pm -
1 stop20h 36m
Deal found 8/1![Frontier logo]()
$70
This Kiwi.com deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 10/1210:35 am -
1 stop27h 08m
Deal found 7/31![Frontier logo]()
$71
This Trip.com deal was found by Cheapflights users on 8/1. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/182:29 pm -
1 stop9h 13m
Deal found 8/1![Frontier logo]()
$73
This Trip.com deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/910:35 am -
1 stop27h 08m
Deal found 7/31![Frontier logo]()
$74
This Kiwi.com deal was found by Cheapflights users on 8/1. 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.
Sun 10/1110:35 am -
1 stop13h 07m
Deal found 8/1![Frontier logo]()
$75
This Kiwi.com deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 9/252:29 pm -
1 stop20h 22m
Deal found 7/31![Frontier logo]()
$76
This Frontier deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 9/281:01 pm -
1 stop7h 31m
Deal found 7/31![Frontier logo]()
$104
Find flight deals from Illinois to Detroit
Keep the following information in mind while searching for Illinois to Detroit flight deals. Data was last updated August 4, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $127 (Kiwi.com) |
One-way from | $62 (Kiwi.com) |
Popular in | March |
Cheapest in | October |
Average price | $277 |
Good round-trip deal | $338 or less |
Good one-way deal | $183 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Illinois to Detroit 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 August 4, 2026.
Use the filters below to find and compare flights from Illinois to Detroit that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
St. LouisDetroit
STL - DTW
STLDTW
Lambert-St Louis
Wed 8/26
12:50 pm-9:30 pm
2 stops7h 40m
Detroit Metropolitan Wayne County
Wed 9/2
5:35 am-11:20 am
2 stops6h 45m
$207
St. LouisDetroit
STL - DTW
STLDTW
Lambert-St Louis
Wed 9/9
11:10 am-1:40 pm
Nonstop1h 30m
Detroit Metropolitan Wayne County
Fri 9/11
6:55 am-7:45 am
Nonstop1h 50m
$217
ChicagoDetroit
ORD - DTW
ORDDTW
Chicago O'Hare Intl
Sun 9/13
8:55 am-11:21 am
Nonstop1h 26m
Detroit Metropolitan Wayne County
Sun 9/20
7:35 am-7:56 am
Nonstop1h 21m
$227
ChicagoDetroit
ORD - DTW
ORDDTW
Chicago O'Hare Intl
Sun 9/27
7:45 pm-10:15 pm
Nonstop1h 30m
Detroit Metropolitan Wayne County
Sun 10/4
5:30 am-5:59 am
Nonstop1h 29m
$227
ChicagoDetroit
ORD - DTW
ORDDTW
Chicago O'Hare Intl
Fri 9/4
7:30 pm-9:59 pm
Nonstop1h 29m
Detroit Metropolitan Wayne County
Sun 9/13
7:35 am-7:56 am
Nonstop1h 21m
$227
ChicagoDetroit
ORD - DTW
ORDDTW
Chicago O'Hare Intl
Fri 10/16
8:50 am-11:24 am
Nonstop1h 34m
Detroit Metropolitan Wayne County
Sun 10/18
5:30 am-5:59 am
Nonstop1h 29m
$227
ChicagoDetroit
MDW - DTW
MDWDTW
Chicago Midway
Fri 9/4
6:42 pm-9:00 pm
Nonstop1h 18m
Detroit Metropolitan Wayne County
Sun 9/13
8:45 am-9:07 am
Nonstop1h 22m
$227
ChicagoDetroit
MDW - DTW
MDWDTW
Chicago Midway
Sat 9/5
7:55 am-10:15 am
Nonstop1h 20m
Detroit Metropolitan Wayne County
Sun 9/6
4:45 pm-10:35 pm
1 stop6h 50m
$227
ChicagoDetroit
MDW - DTW
MDWDTW
Chicago Midway
Sat 9/12
5:55 am-12:30 pm
1 stop5h 35m
Detroit Metropolitan Wayne County
Sat 9/19
4:45 pm-4:55 pm
Nonstop1h 10m
$227
ChicagoDetroit
ORD - DTW
ORDDTW
Chicago O'Hare Intl
Fri 9/11
9:00 am-11:27 am
Nonstop1h 27m
Detroit Metropolitan Wayne County
Sat 9/12
9:15 am-9:43 am
Nonstop1h 28m
$233
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Illinois to Detroit
Have a flexible travel schedule? Discover the best time to fly to Detroit from Illinois with our price prediction graph.
STL-DTW
ORD-DTW
BMI-DTW
EVV-DTW
MDW-DTW
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Illinois to Detroit
USIL-DTT
STL-DTW
ORD-DTW
BMI-DTW
EVV-DTW
What is the cheapest month to book a flight from Illinois to Detroit?
Currently, October is the cheapest month in which you can book a flight from Illinois to Detroit (average of $222). Flying from Illinois to Detroit in March is currently the most expensive (average of $518). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from IL to DTT?
Find hourly flight availability from Illinois to Detroit. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 4, 2026.
One of the essential ways to save on airfare from Illinois to Detroit is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the morning could potentially save you up to 42% on airfare.
Weekly flight availability from Illinois to Detroit
Explore weekly flight availability from Illinois to Detroit. 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 August 4, 2026.
The most flights from USIL to DTT are scheduled on a Monday (89 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (29 on average).
How much does it cost to fly round-trip from Illinois to Detroit?
Airfare is below average for this route at the moment.
Illinois to Detroit flights typically cost between $248 and $395 in October.The cheapest round-trip price found within the last 5 days was $221 on Frontier (Oct 11-Oct 21).
How far ahead should I book a flight from Illinois to Detroit?
Booking 50 days in advance of your planned departure date is, on average, the best time to get cheap flights from Illinois to Detroit. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest day to fly from Illinois to Detroit?
Use this chart to determine the cheapest time to fly round-trip from Illinois to Detroit. Price data was last updated on August 1, 2026.
Travelers seeking maximum savings on their Illinois to Detroit flight should consider departing on Saturday evenings when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Related info for your journey
Find useful and relevant information for your journey from Illinois to Detroit. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Detroit?
Book flights to Detroit if you plan to visit one of these locationsRoseville
Port Huron
Browse thousands of different options on Cheapflights for your next trip
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Alternative routes for Illinois to Detroit
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Complete your trip
Complete your trip to Detroit by adding a car rental and/or hotel reservation to your travel itinerary.
Other flights to Detroit
Explore flights to Detroit departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on August 4, 2026.
Search flights from Illinois to Detroit by cabin class
Find flights from Illinois to Detroit, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Illinois and Detroit flights
Browse other Illinois and Detroit flight options. Last updated on August 4, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Illinois to Detroit flights
Consider these flights traveling from Illinois to Detroit.
Top 5 airlines flying from Illinois to Detroit
Discover the top 5 airlines that operate flights from Illinois to Detroit. 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 August 4, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$97 | Average$370 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$121 | Average$250 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$121 | Average$347 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$144 | Average$178 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$171 | Average$398 | FlexibilityNo cancel fee | On-time69% |