$99+ Cheap flights from Detroit (DTT) to Illinois
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/27. Fares are subject to change and may not be available on all flights or dates of travel.
DTT — ORD
Dec 4 — Dec 111
Round-trip
1 adult, Economy
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Find cheap flights from Detroit 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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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 November 4, 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 November 4, 2026.
This CheapOair deal was found by Cheapflights users on 11/3. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/34:43 pm -
1 stop7h 06m
Sun 12/65:24 pm -
1 stop16h 33m
Deal found 11/3![Frontier logo]()
$208
This Frontier deal was found by Cheapflights users on 11/3. 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 12/51:40 pm -
1 stop12h 28m
Mon 12/710:29 pm -
1 stop11h 42m
Deal found 11/3![Frontier logo]()
$212
This Frontier deal was found by Cheapflights users on 11/3. 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 12/174:56 pm -
1 stop7h 21m
Thu 1/78:30 pm -
1 stop13h 27m
Deal found 11/3![Frontier logo]()
$212
This Frontier deal was found by Cheapflights users on 11/3. 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 12/34:43 pm -
1 stop7h 06m
Thu 12/105:35 am -
1 stop6h 33m
Deal found 11/3![Frontier logo]()
$218
This Kiwi.com deal was found by Cheapflights users on 11/3. 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 12/32:27 pm -
2 stops24h 33m
Mon 12/710:29 pm -
1 stop11h 42m
Deal found 11/3![Frontier logo]()
$219
This Southwest deal was found by Cheapflights users on 11/2. 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.
Thu 12/178:15 pm -
1 stop3h 30m
Thu 12/241:15 pm -
2 stops7h 55m
Deal found 11/2![Southwest logo]()
$222
This Kiwi.com deal was found by Cheapflights users on 11/2. 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.
Wed 12/210:16 am -
1 stop12h 19m
Fri 12/47:08 pm -
2 stops19h 08m
Deal found 11/2![Frontier logo]()
$224
This Delta deal was found by Cheapflights users on 10/30. 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.
Wed 12/307:48 pm -
Nonstop1h 30m
Tue 1/510:33 am -
Nonstop1h 39m
Deal found 10/30![Delta logo]()
$227
This Southwest deal was found by Cheapflights users on 11/2. 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.
Tue 11/248:20 am -
Nonstop1h 30m
Tue 11/247:15 pm -
Nonstop1h 10m
Deal found 11/2![Southwest logo]()
$227
This Southwest deal was found by Cheapflights users on 11/2. 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 11/256:40 am -
1 stop9h 05m
Fri 11/2711:10 am -
1 stop10h 15m
Deal found 11/2![Southwest logo]()
$228
This Frontier deal was found by Cheapflights users on 11/1. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/215:33 pm -
1 stop8h 10m
Fri 11/275:25 am -
1 stop8h 21m
Deal found 11/1![Frontier logo]()
$229
This Frontier deal was found by Cheapflights users on 10/30. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/201:33 pm -
1 stop10h 45m
Mon 11/239:20 pm -
1 stop10h 19m
Deal found 10/30![Frontier logo]()
$230
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 November 4, 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 November 4, 2026.
This Southwest deal was found by Cheapflights users on 10/31. 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.
Sat 11/218:55 pm -
1 stop4h 30m
Mon 11/2312:45 pm -
2 stops5h 50m
Deal found 10/31![Southwest logo]()
$222
This Delta deal was found by Cheapflights users on 10/30. 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.
Wed 12/307:48 pm -
Nonstop1h 30m
Tue 1/510:33 am -
Nonstop1h 39m
Deal found 10/30![Delta logo]()
$227
This United Airlines deal was found by Cheapflights users on 11/3. 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 12/37:05 am -
Nonstop1h 34m
Sun 12/67:00 am -
Nonstop1h 39m
Deal found 11/3![United Airlines logo]()
$256
This American Airlines deal was found by Cheapflights users on 11/3. 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 12/19:12 pm -
1 stop3h 52m
Tue 12/86:00 am -
1 stop6h 09m
Deal found 11/3![American Airlines logo]()
$297
This Delta deal was found by Cheapflights users on 10/30. 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.
Wed 12/307:48 pm -
Nonstop1h 30m
Wed 1/61:45 pm -
Nonstop1h 26m
Deal found 10/30![Delta logo]()
$227
This Southwest deal was found by Cheapflights users on 11/3. 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.
Thu 12/107:35 pm -
Nonstop1h 20m
Mon 12/149:55 am -
1 stop7h 05m
Deal found 11/3![Southwest logo]()
$237
This Delta deal was found by Cheapflights users on 10/30. 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.
Wed 12/307:48 pm -
Nonstop1h 30m
Thu 1/77:00 am -
Nonstop1h 43m
Deal found 10/30![Delta logo]()
$227
This United Airlines deal was found by Cheapflights users on 11/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/510:30 am -
Nonstop1h 41m
Sun 12/67:00 am -
Nonstop1h 39m
Deal found 11/1![United Airlines logo]()
$256
This Southwest deal was found by Cheapflights users on 10/31. 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.
Tue 12/151:25 pm -
1 stop3h 50m
Tue 12/227:45 am -
Nonstop1h 10m
Deal found 10/31![Southwest logo]()
$237
This Delta deal was found by Cheapflights users on 10/30. 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.
Wed 12/309:10 am -
Nonstop1h 39m
Mon 1/410:33 am -
Nonstop1h 39m
Deal found 10/30![Delta logo]()
$227
This American Airlines deal was found by Cheapflights users on 11/4. 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.
Wed 12/21:39 pm -
1 stop4h 48m
Wed 12/96:00 am -
1 stop6h 09m
Deal found 11/4![American Airlines logo]()
$297
This United Airlines deal was found by Cheapflights users on 11/3. 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 11/256:27 pm -
Nonstop1h 33m
Sun 11/2910:47 am -
Nonstop1h 41m
Deal found 11/3![United Airlines logo]()
$304
This Delta deal was found by Cheapflights users on 11/1. 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.
Fri 12/49:15 am -
Nonstop1h 22m
Sun 12/61:41 pm -
Nonstop1h 14m
Deal found 11/1![Delta logo]()
$256
This Southwest deal was found by Cheapflights users on 10/31. 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 11/238:45 pm -
1 stop4h 25m
Wed 11/2512:50 pm -
2 stops9h 50m
Deal found 10/31![Southwest logo]()
$293
This United Airlines deal was found by Cheapflights users on 11/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/257:26 am -
Nonstop1h 34m
Sat 11/286:56 am -
Nonstop1h 36m
Deal found 11/1![United Airlines logo]()
$304
This American Airlines deal was found by Cheapflights users on 10/30. 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.
Sat 11/1410:23 am -
1 stop4h 35m
Wed 11/185:00 am -
1 stop3h 26m
Deal found 10/30![American Airlines logo]()
$337
This Delta deal was found by Cheapflights users on 10/30. 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.
Tue 1/512:51 pm -
Nonstop1h 26m
Sun 1/101:59 pm -
Nonstop1h 15m
Deal found 10/30![Delta logo]()
$256
This Southwest deal was found by Cheapflights users on 11/2. 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.
Thu 12/36:20 pm -
1 stop4h 15m
Mon 12/71:15 pm -
2 stops7h 55m
Deal found 11/2![Southwest logo]()
$316
This United Airlines deal was found by Cheapflights users on 10/31. 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.
Wed 12/2312:30 pm -
1 stop5h 33m
Wed 12/308:05 am -
1 stop6h 35m
Deal found 10/31![United Airlines logo]()
$341
This Southwest deal was found by Cheapflights users on 10/31. 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.
Sat 11/218:10 pm -
1 stop3h 50m
Sun 11/2212:45 pm -
2 stops5h 50m
Deal found 10/31![Southwest logo]()
$329
This Delta deal was found by Cheapflights users on 10/31. 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.
Wed 1/1310:00 am -
1 stop9h 53m
Mon 1/187:00 am -
Nonstop1h 43m
Deal found 10/31![Delta logo]()
$321
This Southwest deal was found by Cheapflights users on 11/1. 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 11/258:20 am -
Nonstop1h 30m
Sat 11/287:40 am -
Nonstop1h 10m
Deal found 11/1![Southwest logo]()
$334
This American Airlines deal was found by Cheapflights users on 10/31. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/239:02 pm -
1 stop4h 13m
Wed 12/305:00 am -
2 stops10h 32m
Deal found 10/31![American Airlines logo]()
$477
This United Airlines deal was found by Cheapflights users on 11/3. 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 11/2412:35 pm -
1 stop5h 12m
Sat 11/287:15 pm -
1 stop3h 42m
Deal found 11/3![United Airlines logo]()
$409
This Delta deal was found by Cheapflights users on 10/30. 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 1/28:25 am -
Nonstop1h 24m
Wed 1/61:59 pm -
Nonstop1h 15m
Deal found 10/30![Delta logo]()
$341
This American Airlines deal was found by Cheapflights users on 11/3. 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 11/244:25 pm -
1 stop8h 48m
Sat 11/283:15 pm -
1 stop5h 29m
Deal found 11/3![American Airlines logo]()
$487
This United Airlines deal was found by Cheapflights users on 11/3. 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 1/207:00 am -
1 stop4h 03m
Sat 1/236:30 am -
1 stop5h 42m
Deal found 11/3![United Airlines logo]()
$409
This Delta deal was found by Cheapflights users on 11/3. 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.
Mon 11/237:45 pm -
Nonstop1h 32m
Wed 11/258:29 am -
Nonstop1h 23m
Deal found 11/3![Delta logo]()
$355
This United Airlines deal was found by Cheapflights users on 11/2. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/176:00 am -
1 stop5h 00m
Mon 12/213:44 pm -
1 stop5h 44m
Deal found 11/2![United Airlines logo]()
$409
This Delta deal was found by Cheapflights users on 11/1. 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.
Fri 11/207:45 pm -
Nonstop1h 32m
Mon 11/232:44 pm -
Nonstop1h 22m
Deal found 11/1![Delta logo]()
$355
Last-minute flights from Detroit to IllinoisDiscover last-minute flight deals from Detroit to Illinois. Data last updated November 4, 2026 and is based on user searches.
Discover last-minute flight deals from Detroit to Illinois. Data last updated November 4, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 10/30. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/201:33 pm -
1 stop10h 45m
Mon 11/239:20 pm -
1 stop10h 19m
Deal found 10/30![Frontier logo]()
$230
This Frontier deal was found by Cheapflights users on 11/2. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/215:33 pm -
1 stop8h 10m
Mon 11/239:20 pm -
1 stop10h 19m
Deal found 11/2![Frontier logo]()
$229
This Southwest deal was found by Cheapflights users on 11/2. 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.
Tue 11/248:20 am -
Nonstop1h 30m
Tue 11/247:15 pm -
Nonstop1h 10m
Deal found 11/2![Southwest logo]()
$227
This Southwest deal was found by Cheapflights users on 11/2. 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 11/256:40 am -
1 stop9h 05m
Fri 11/2711:10 am -
1 stop10h 15m
Deal found 11/2![Southwest logo]()
$228
This Kiwi.com deal was found by Cheapflights users on 11/2. 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.
Wed 12/210:16 am -
1 stop12h 19m
Fri 12/47:08 pm -
2 stops19h 08m
Deal found 11/2![Frontier logo]()
$224
This CheapOair deal was found by Cheapflights users on 11/3. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/34:43 pm -
1 stop7h 06m
Sun 12/65:24 pm -
1 stop16h 33m
Deal found 11/3![Frontier logo]()
$208
This Frontier deal was found by Cheapflights users on 11/3. 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 12/34:43 pm -
1 stop7h 06m
Thu 12/105:35 am -
1 stop6h 33m
Deal found 11/3![Frontier logo]()
$218
This Kiwi.com deal was found by Cheapflights users on 11/3. 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 12/32:27 pm -
2 stops24h 33m
Mon 12/710:29 pm -
1 stop11h 42m
Deal found 11/3![Frontier logo]()
$219
This Frontier deal was found by Cheapflights users on 11/3. 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 12/51:40 pm -
1 stop12h 28m
Mon 12/710:29 pm -
1 stop11h 42m
Deal found 11/3![Frontier logo]()
$212
This Frontier deal was found by Cheapflights users on 11/3. 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 12/174:56 pm -
1 stop7h 21m
Thu 1/78:30 pm -
1 stop13h 27m
Deal found 11/3![Frontier logo]()
$212
This Southwest deal was found by Cheapflights users on 11/2. 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.
Thu 12/178:15 pm -
1 stop3h 30m
Thu 12/241:15 pm -
2 stops7h 55m
Deal found 11/2![Southwest logo]()
$222
This Delta deal was found by Cheapflights users on 10/30. 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.
Wed 12/307:48 pm -
Nonstop1h 30m
Tue 1/510:33 am -
Nonstop1h 39m
Deal found 10/30![Delta logo]()
$227
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 November 4, 2026.
Search for one-way flight options from Detroit to Illinois. Find affordable one-way fares based on user searches. Data last updated November 4, 2026.
This Delta deal was found by Cheapflights users on 11/2. 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.
Fri 11/277:45 pm -
Nonstop1h 32m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/2![Delta logo]()
$99
This Delta deal was found by Cheapflights users on 11/3. 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.
Fri 11/2711:03 am -
Nonstop1h 22m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/3![Delta logo]()
$99
This Frontier deal was found by Cheapflights users on 11/2. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/52:40 pm -
1 stop9h 52m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/2![Frontier logo]()
$100
This Southwest deal was found by Cheapflights users on 11/1. 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 12/105:30 am -
1 stop4h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/1![Southwest logo]()
$109
This CheapOair deal was found by Cheapflights users on 10/31. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/217:15 am -
1 stop18h 38m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/31![Frontier logo]()
$111
This Kiwi.com deal was found by Cheapflights users on 11/2. 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.
Wed 11/184:29 pm -
1 stop24h 08m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/2![Frontier logo]()
$114
This Southwest deal was found by Cheapflights users on 11/1. 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 11/256:40 am -
1 stop9h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/1![Southwest logo]()
$114
This Kiwi.com deal was found by Cheapflights users on 10/30. 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.
Sun 1/109:56 pm -
2 stops27h 21m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/30![Frontier logo]()
$117
This Frontier deal was found by Cheapflights users on 10/30. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/182:55 pm -
1 stop9h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/30![Frontier logo]()
$123
This Super.com deal was found by Cheapflights users on 10/31. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/176:25 am -
1 stop13h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/31![Frontier logo]()
$124
This Super.com deal was found by Cheapflights users on 10/31. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/176:25 am -
1 stop12h 22m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/31![Frontier logo]()
$124
This Kiwi.com deal was found by Cheapflights users on 10/30. 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 12/24:21 pm -
2 stops15h 56m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/30![Frontier logo]()
$125
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 November 4, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $207 (Southwest) |
One-way from | $99 (Delta) |
Popular in | October |
Cheapest in | January |
Average price | $450 |
Good round-trip deal | $334 or less |
Good one-way deal | $172 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 7,457,451 searches. Data last updated November 4, 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 Detroit Metropolitan Wayne County - ORD Chicago O'Hare Intl
DTWORD
Detroit Metropolitan Wayne County
Thu 12/10
3:50 pm-4:17 pm
Nonstop1h 27m
Chicago O'Hare Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$99
DetroitChicago
DTW Detroit Metropolitan Wayne County - ORD Chicago O'Hare Intl
DTWORD
Detroit Metropolitan Wayne County
Sat 12/5
10:30 am-11:11 am
Nonstop1h 41m
Chicago O'Hare Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$99
Quickest round-trip
DetroitChicago
DTW Detroit Metropolitan Wayne County - MDW Chicago Midway
DTWMDW
Detroit Metropolitan Wayne County
Sat 12/12
4:45 pm-5:00 pm
Nonstop1h 15m
Chicago Midway
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$99
DetroitChicago
DTW Detroit Metropolitan Wayne County - ORD Chicago O'Hare Intl
DTWORD
Detroit Metropolitan Wayne County
Wed 12/16
1:32 pm-1:56 pm
Nonstop1h 24m
Chicago O'Hare Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$99
DetroitChicago
DTW Detroit Metropolitan Wayne County - MDW Chicago Midway
DTWMDW
Detroit Metropolitan Wayne County
Tue 12/29
8:00 pm-8:20 pm
Nonstop1h 20m
Chicago Midway
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$99
DetroitChicago
DTW Detroit Metropolitan Wayne County - ORD Chicago O'Hare Intl
DTWORD
Detroit Metropolitan Wayne County
Fri 12/18
12:24 pm-12:50 pm
Nonstop1h 26m
Chicago O'Hare Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$99
DetroitChicago
DTW Detroit Metropolitan Wayne County - ORD Chicago O'Hare Intl
DTWORD
Detroit Metropolitan Wayne County
Sat 11/21
3:50 pm-4:18 pm
Nonstop1h 28m
Chicago O'Hare Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$99
DetroitChicago
DTW Detroit Metropolitan Wayne County - ORD Chicago O'Hare Intl
DTWORD
Detroit Metropolitan Wayne County
Sat 12/19
4:25 pm-5:00 pm
Nonstop1h 35m
Chicago O'Hare Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$99
DetroitChicago
DTW Detroit Metropolitan Wayne County - ORD Chicago O'Hare Intl
DTWORD
Detroit Metropolitan Wayne County
Fri 11/27
7:45 pm-8:17 pm
Nonstop1h 32m
Chicago O'Hare Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$99
DetroitChicago
DTW Detroit Metropolitan Wayne County - MDW Chicago Midway
DTWMDW
Detroit Metropolitan Wayne County
Fri 11/27
11:03 am-11:25 am
Nonstop1h 22m
Chicago Midway
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$99
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-ORD
DTW-MDW
DTW-MLI
DTW-PIA
DTW-BMI
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-ORD
DTW-MDW
DTW-MLI
DTW-PIA
What is the cheapest month to book a flight from Detroit to Illinois?
Currently, December is the cheapest month in which you can book a flight from Detroit to Illinois (average of $271). Flying from Detroit to Illinois in July is currently the most expensive (average of $407). 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 November 4, 2026.
It’s typically best to fly out from Detroit to Illinois in the morning. Doing so could potentially save you 32% on the flight price compared to flying at noon, which is usually more expensive.
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 November 4, 2026.
The most flights from DTT to USIL are scheduled on a Monday (73 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (43 on average).
How much does it cost to fly round-trip from Detroit to Illinois?
Airfare is below average for this route at the moment.
Detroit to Illinois flights typically cost between $239 and $505 in December.The cheapest round-trip price found within the last 5 days was $208 on Frontier (Dec 3-Dec 6).
How far ahead should I book a flight from Detroit to Illinois?
The best time to book flights from Detroit to Illinois is 75 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 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 October 31, 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. Saturday 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 November 4, 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.
Boarding
8.1
Overall
8.0
Comfort
8.0
Crew
8.6
Entertainment
7.5
Food
7.0
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Boarding
8.1
Overall
8.0
Comfort
8.0
Crew
8.6
Entertainment
7.5
Food
7.0
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Boarding
8.1
Overall
8.0
Comfort
8.0
Crew
8.6
Entertainment
7.5
Food
7.0
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Boarding
8.1
Overall
8.0
Comfort
8.0
Crew
8.6
Entertainment
7.5
Food
7.0
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Boarding
8.1
Overall
8.0
Comfort
8.0
Crew
8.6
Entertainment
7.5
Food
7.0
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
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 November 4, 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 5 airlines flying from Detroit to Illinois
Discover the top 5 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 7,457,451 searches. Data last updated November 4, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$70 | Average$229 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$137 | Average$315 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$175 | Average$371 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$183 | Average$407 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$193 | Average$421 | FlexibilityNo cancel fee | On-time63% |