$99+ Cheap flights from Illinois to Detroit (DTT)
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 12/11. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — DTT
Dec 5 — Dec 121
Round-trip
1 adult, Economy
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Find cheap flights from Illinois to Detroit 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 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 November 5, 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 November 5, 2026.
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.
Wed 12/98:30 am -
1 stop7h 53m
Tue 12/1510:00 am -
2 stops13h 00m
Deal found 11/3![Frontier logo]()
$226
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2410:30 am -
Nonstop1h 29m
Tue 12/299:10 am -
Nonstop1h 39m
Deal found 11/4![Delta logo]()
$227
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/226:15 pm -
Nonstop1h 19m
Tue 12/298:25 am -
Nonstop1h 24m
Deal found 11/4![Delta logo]()
$227
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.
Tue 11/247:49 am -
1 stop11h 56m
Sat 12/129:45 pm -
1 stop10h 35m
Deal found 11/3![Frontier logo]()
$229
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.
Tue 11/248:42 pm -
1 stop12h 50m
Thu 12/101:53 pm -
1 stop6h 49m
Deal found 11/3![Frontier logo]()
$229
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/248:59 am -
1 stop9h 31m
Thu 12/312:55 pm -
1 stop9h 11m
Deal found 11/4![Frontier logo]()
$230
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.
Mon 11/239:20 pm -
1 stop10h 19m
Mon 12/142:31 pm -
2 stops11h 37m
Deal found 11/3![Frontier logo]()
$232
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.
Wed 12/912:28 pm -
1 stop24h 19m
Mon 12/149:45 pm -
1 stop14h 48m
Deal found 11/3![Frontier logo]()
$233
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.
Mon 11/239:20 pm -
1 stop10h 19m
Fri 12/112:42 pm -
1 stop7h 47m
Deal found 11/3![Frontier logo]()
$235
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/38:00 am -
1 stop4h 20m
Mon 12/77:35 pm -
Nonstop1h 20m
Deal found 11/4![Southwest logo]()
$237
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.
Wed 12/97:25 am -
1 stop16h 45m
Mon 12/142:31 pm -
2 stops24h 59m
Deal found 11/3![Frontier logo]()
$238
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 11/266:20 am -
1 stop16h 27m
Mon 11/308:05 pm -
1 stop16h 39m
Deal found 11/3![Frontier logo]()
$239
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 November 5, 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 November 5, 2026.
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/85:55 pm -
Nonstop1h 45m
Sun 1/108:30 am -
Nonstop1h 45m
Deal found 11/4![United Airlines logo]()
$256
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.
Sat 12/511:14 am -
Nonstop1h 41m
Sun 12/61:32 pm -
Nonstop1h 24m
Deal found 11/1![Delta logo]()
$256
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/88:35 am -
Nonstop1h 15m
Sun 1/102:10 pm -
Nonstop1h 10m
Deal found 11/4![Southwest logo]()
$256
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.
Fri 12/42:18 pm -
1 stop6h 13m
Mon 12/79:04 pm -
1 stop3h 59m
Deal found 10/31![American Airlines logo]()
$265
This Kiwi.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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/2312:41 pm -
1 stop11h 02m
Tue 1/269:45 pm -
2 stops35h 16m
Deal found 10/31![Multiple Airlines logo]()
$275
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/81:30 pm -
2 stops10h 12m
Sun 1/104:14 pm -
1 stop9h 03m
Deal found 11/4![Frontier logo]()
$311
This KAYAK 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/145:02 pm -
Nonstop1h 22m
Tue 12/1510:20 am -
Nonstop1h 39m
Deal found 11/3![Delta logo]()
$262
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.
Sat 12/198:55 pm -
Nonstop1h 15m
Sun 12/2012:45 pm -
1 stop7h 10m
Deal found 11/3![Southwest logo]()
$266
This KAYAK 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/16:10 pm -
Nonstop1h 36m
Wed 12/212:25 pm -
Nonstop1h 35m
Deal found 11/3![United Airlines logo]()
$282
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.
Sat 12/510:25 am -
1 stop6h 00m
Sun 12/67:45 pm -
Nonstop1h 20m
Deal found 11/1![Southwest logo]()
$266
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.
Wed 1/65:55 pm -
Nonstop1h 45m
Sat 1/98:30 am -
Nonstop1h 45m
Deal found 11/2![United Airlines logo]()
$287
This Frontier deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” 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 11/912:20 pm -
1 stop8h 23m
Sat 11/146:25 am -
1 stop12h 22m
Deal found 11/5![Frontier logo]()
$324
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 11/2110:10 am -
2 stops5h 35m
Mon 11/238:45 pm -
1 stop4h 25m
Deal found 10/31![Southwest logo]()
$272
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.
Sun 12/277:00 am -
Nonstop1h 33m
Mon 1/255:59 pm -
Nonstop1h 33m
Deal found 10/31![Delta logo]()
$306
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 12/32:35 pm -
Nonstop1h 31m
Mon 12/78:41 am -
Nonstop1h 34m
Deal found 11/3![United Airlines logo]()
$288
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/182:33 pm -
1 stop4h 28m
Mon 3/2210:16 am -
1 stop4h 47m
Deal found 11/2![American Airlines logo]()
$364
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/279:29 am -
Nonstop1h 15m
Sat 1/28:25 am -
Nonstop1h 24m
Deal found 11/4![Delta logo]()
$311
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.
Wed 12/305:45 pm -
Nonstop1h 42m
Sun 1/310:35 am -
Nonstop1h 44m
Deal found 11/2![United Airlines logo]()
$291
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.
Wed 12/307:45 am -
Nonstop1h 10m
Sun 1/38:00 pm -
Nonstop1h 20m
Deal found 10/31![Southwest logo]()
$321
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.
Wed 11/257:47 pm -
Nonstop1h 35m
Sat 11/286:15 am -
Nonstop1h 42m
Deal found 11/2![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.
Wed 11/256:44 pm -
Nonstop1h 16m
Sun 11/295:40 pm -
Nonstop1h 24m
Deal found 11/1![Delta logo]()
$355
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.
Tue 11/247:45 am -
Nonstop1h 10m
Sun 11/299:10 pm -
Nonstop1h 30m
Deal found 11/1![Southwest logo]()
$334
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.
Thu 11/261:55 pm -
Nonstop1h 40m
Sun 11/296:15 am -
Nonstop1h 42m
Deal found 11/1![United Airlines logo]()
$304
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.
Wed 11/187:36 pm -
1 stop15h 04m
Sun 11/226:47 pm -
2 stops39h 19m
Deal found 11/3![Multiple Airlines logo]()
$492
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 11/255:59 pm -
Nonstop1h 31m
Sun 11/2910:00 pm -
Nonstop1h 33m
Deal found 11/1![United Airlines logo]()
$304
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.
Wed 11/186:05 am -
1 stop5h 54m
Sun 11/229:12 pm -
1 stop4h 01m
Deal found 11/3![American Airlines logo]()
$524
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.
Sat 1/238:15 am -
1 stop3h 57m
Tue 1/265:59 pm -
1 stop6h 25m
Deal found 10/31![United Airlines logo]()
$319
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.
Thu 3/185:02 am -
1 stop3h 37m
Mon 3/2210:16 am -
1 stop6h 43m
Deal found 11/3![American Airlines logo]()
$553
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.
Mon 11/238:13 am -
1 stop6h 14m
Sat 11/287:26 am -
1 stop3h 39m
Deal found 11/2![United Airlines logo]()
$319
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.
Thu 11/198:15 am -
1 stop6h 12m
Sun 11/227:26 am -
1 stop3h 42m
Deal found 11/1![United Airlines logo]()
$334
Last-minute flights from Illinois to DetroitDiscover last-minute flight deals from Illinois to Detroit. Data last updated November 5, 2026 and is based on user searches.
Discover last-minute flight deals from Illinois to Detroit. Data last updated November 5, 2026 and is based on user searches.
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.
Mon 11/239:20 pm -
1 stop10h 19m
Mon 12/142:31 pm -
2 stops11h 37m
Deal found 11/3![Frontier logo]()
$232
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.
Mon 11/239:20 pm -
1 stop10h 19m
Fri 12/112:42 pm -
1 stop7h 47m
Deal found 11/3![Frontier logo]()
$235
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.
Tue 11/245:25 am -
1 stop8h 21m
Fri 12/112:53 pm -
1 stop11h 15m
Deal found 11/3![Frontier logo]()
$229
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.
Tue 11/248:42 pm -
1 stop12h 50m
Thu 12/101:53 pm -
1 stop6h 49m
Deal found 11/3![Frontier logo]()
$229
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 11/266:20 am -
1 stop16h 27m
Mon 11/308:05 pm -
1 stop16h 39m
Deal found 11/3![Frontier logo]()
$239
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/38:00 am -
1 stop4h 20m
Mon 12/77:35 pm -
Nonstop1h 20m
Deal found 11/4![Southwest logo]()
$237
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.
Wed 12/98:30 am -
1 stop7h 53m
Tue 12/1510:00 am -
2 stops13h 00m
Deal found 11/3![Frontier logo]()
$226
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.
Wed 12/912:28 pm -
1 stop24h 19m
Mon 12/149:45 pm -
1 stop14h 48m
Deal found 11/3![Frontier logo]()
$233
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.
Wed 12/97:25 am -
1 stop16h 45m
Mon 12/142:31 pm -
2 stops24h 59m
Deal found 11/3![Frontier logo]()
$238
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/226:15 pm -
Nonstop1h 19m
Tue 12/298:25 am -
Nonstop1h 24m
Deal found 11/4![Delta logo]()
$227
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2410:30 am -
Nonstop1h 29m
Tue 12/299:10 am -
Nonstop1h 39m
Deal found 11/4![Delta logo]()
$227
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/248:59 am -
1 stop9h 31m
Thu 12/312:55 pm -
1 stop9h 11m
Deal found 11/4![Frontier logo]()
$230
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 November 5, 2026.
Search for one-way flight options from Illinois to Detroit. Find affordable one-way fares based on user searches. Data last updated November 5, 2026.
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/195:55 pm -
Nonstop1h 23m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![Delta logo]()
$99
This Delta deal was found by Cheapflights users on 11/5. Clicking the “Pick Dates” 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 12/196:15 pm -
Nonstop1h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/5![Delta logo]()
$99
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/266:20 am -
1 stop16h 27m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/1![Frontier logo]()
$100
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/167:55 am -
1 stop14h 42m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![Frontier logo]()
$102
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/265:55 pm -
Nonstop1h 23m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![Delta logo]()
$104
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/286:15 pm -
Nonstop1h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![Delta logo]()
$104
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.
Wed 11/258:42 pm -
1 stop12h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/1![Frontier logo]()
$106
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.
Fri 11/275:25 am -
1 stop8h 21m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/1![Frontier logo]()
$109
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/268:40 am -
1 stop6h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![Southwest logo]()
$109
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/127:25 am -
1 stop16h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/2![Frontier logo]()
$111
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 12/11:15 pm -
2 stops7h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/2![Southwest logo]()
$114
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/154:00 pm -
2 stops22h 16m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/2![Frontier logo]()
$115
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 November 5, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $226 (Kiwi.com) |
One-way from | $99 (Delta) |
Popular in | March |
Cheapest in | January |
Average price | $494 |
Good round-trip deal | $387 or less |
Good one-way deal | $196 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 7,457,451 searches. Data last updated November 5, 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
ChicagoDetroit
ORD Chicago O'Hare Intl - DTW Detroit Metropolitan Wayne County
ORDDTW
Chicago O'Hare Intl
Fri 12/11
8:39 am-11:04 am
Nonstop1h 25m
Detroit Metropolitan Wayne County
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$99
ChicagoDetroit
ORD Chicago O'Hare Intl - DTW Detroit Metropolitan Wayne County
ORDDTW
Chicago O'Hare Intl
Wed 12/2
7:00 am-9:39 am
Nonstop1h 39m
Detroit Metropolitan Wayne County
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$99
Quickest round-trip
ChicagoDetroit
MDW Chicago Midway - DTW Detroit Metropolitan Wayne County
MDWDTW
Chicago Midway
Thu 11/26
1:30 pm-3:40 pm
Nonstop1h 10m
Detroit Metropolitan Wayne County
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$99
ChicagoDetroit
ORD Chicago O'Hare Intl - DTW Detroit Metropolitan Wayne County
ORDDTW
Chicago O'Hare Intl
Mon 1/4
1:45 pm-4:11 pm
Nonstop1h 26m
Detroit Metropolitan Wayne County
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$99
ChicagoDetroit
ORD Chicago O'Hare Intl - DTW Detroit Metropolitan Wayne County
ORDDTW
Chicago O'Hare Intl
Sat 12/19
5:55 pm-8:18 pm
Nonstop1h 23m
Detroit Metropolitan Wayne County
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$99
ChicagoDetroit
ORD Chicago O'Hare Intl - DTW Detroit Metropolitan Wayne County
ORDDTW
Chicago O'Hare Intl
Wed 12/16
8:39 am-11:04 am
Nonstop1h 25m
Detroit Metropolitan Wayne County
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$99
ChicagoDetroit
ORD Chicago O'Hare Intl - DTW Detroit Metropolitan Wayne County
ORDDTW
Chicago O'Hare Intl
Sat 12/26
7:00 am-9:30 am
Nonstop1h 30m
Detroit Metropolitan Wayne County
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$99
ChicagoDetroit
ORD Chicago O'Hare Intl - DTW Detroit Metropolitan Wayne County
ORDDTW
Chicago O'Hare Intl
Sat 1/2
7:00 am-9:30 am
Nonstop1h 30m
Detroit Metropolitan Wayne County
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$99
ChicagoDetroit
ORD Chicago O'Hare Intl - DTW Detroit Metropolitan Wayne County
ORDDTW
Chicago O'Hare Intl
Tue 11/24
8:29 am-10:52 am
Nonstop1h 23m
Detroit Metropolitan Wayne County
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$99
ChicagoDetroit
ORD Chicago O'Hare Intl - DTW Detroit Metropolitan Wayne County
ORDDTW
Chicago O'Hare Intl
Mon 12/28
7:00 am-9:33 am
Nonstop1h 33m
Detroit Metropolitan Wayne County
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$99
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.
ORD-DTW
MDW-DTW
BMI-DTW
MLI-DTW
PIA-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
ORD-DTW
MDW-DTW
BMI-DTW
MLI-DTW
What is the cheapest month to book a flight from Illinois to Detroit?
Currently, December is the cheapest month in which you can book a flight from Illinois to Detroit (average of $281). Flying from Illinois to Detroit in March is currently the most expensive (average of $534). 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 November 5, 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 33% 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 November 5, 2026.
The most flights from USIL to DTT are scheduled on a Monday (68 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (34 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 $361 and $690 in December.The cheapest round-trip price found within the last 5 days was $226 on Frontier (Dec 9-Dec 15).
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 October 31, 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. Tuesday 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
See prices for flight routes from nearby airports that may be better suited for you.
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 November 5, 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 November 5, 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 4 airlines flying from Illinois to Detroit
Discover the top 4 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 7,457,451 searches. Data last updated November 5, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$97 | Average$567 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$160 | Average$364 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$197 | Average$297 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$224 | Average$441 | FlexibilityNo cancel fee | On-time69% |