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$68+ 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 2/28. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — DTT
Mar 13 — Mar 201
Fri 3/13
Fri 3/20
1 adult, Economy
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Cheap flight deals from Illinois to Detroit

Cheapest flights from Illinois to Detroit
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 February 11, 2026.

This Kiwi.com deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/48:17 pm
STL
-
DTW
1 stop10h 50m
Frontier
Mon 3/99:02 am
DTW
-
STL
1 stop5h 17m
Frontier
Deal found 2/11$138
This Kiwi.com deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/48:17 pm
STL
-
DTW
1 stop10h 50m
Frontier
Tue 3/105:07 pm
DTW
-
STL
1 stop18h 30m
Frontier
Deal found 2/11$141
This Kiwi.com deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” 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 3/61:09 pm
STL
-
DTW
1 stop18h 38m
Frontier
Sun 3/85:17 pm
DTW
-
STL
1 stop21h 02m
Frontier
Deal found 2/11$142
This Frontier deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” 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 2/271:59 pm
STL
-
DTW
1 stop8h 56m
Frontier
Wed 3/48:30 am
DTW
-
STL
1 stop8h 23m
Frontier
Deal found 2/9$144
This Kiwi.com deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/33:49 pm
STL
-
DTW
1 stop16h 08m
Frontier
Mon 3/99:02 am
DTW
-
STL
1 stop5h 17m
Frontier
Deal found 2/11$153
This Kiwi.com deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/33:49 pm
STL
-
DTW
1 stop16h 08m
Frontier
Tue 3/105:07 pm
DTW
-
STL
1 stop18h 30m
Frontier
Deal found 2/11$156
This Frontier deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” 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 2/258:17 pm
STL
-
DTW
1 stop10h 50m
Frontier
Mon 3/26:08 pm
DTW
-
STL
1 stop6h 51m
Frontier
Deal found 2/11$160
This Kiwi.com deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” 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 2/278:22 pm
STL
-
DTW
1 stop11h 10m
Frontier
Sun 3/15:06 pm
DTW
-
STL
1 stop14h 45m
Frontier
Deal found 2/8$163
This Kiwi.com deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/48:17 pm
STL
-
DTW
1 stop10h 50m
Multiple Airlines
Tue 3/108:52 pm
DTW
-
STL
2 stops14h 45m
Multiple Airlines
Deal found 2/11$166
This Kiwi.com deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” 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 3/61:09 pm
STL
-
DTW
1 stop18h 38m
Multiple Airlines
Sun 3/88:52 pm
DTW
-
STL
2 stops17h 27m
Multiple Airlines
Deal found 2/11$167
This Kiwi.com deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” 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 3/57:30 am
MDW
-
DTW
1 stop7h 27m
Multiple Airlines
Mon 3/910:59 pm
DTW
-
MDW
1 stop15h 03m
Multiple Airlines
Deal found 2/11$170
This CheapOair deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” 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 4/115:53 pm
ORD
-
DTW
1 stop16h 05m
Frontier
Sun 4/126:37 pm
DTW
-
ORD
1 stop7h 01m
Frontier
Deal found 2/10$171

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 February 11, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$138
(Kiwi.com)

One-way from

$64
(Priceline)

Popular in

February

Cheapest in

May

Average price

$433

Good round-trip deal

$318 or less

Good one-way deal

$157 or less
Provider with most accurate pricing for Chicago (CHI)-Detroit (DTT) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Detroit (DTT) flights.
Search Deals
From Illinois to Detroit (DTT)
Search Deals
One-way flight from Illinois to Detroit (DTT)
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($42 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals
Price to beat on a round-trip flight from Illinois to Detroit (DTT).
Search Deals
Price to beat on a one-way flight from Illinois to Detroit (DTT).
Search Deals

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 February 11, 2026.
Use the filters below to find and compare flights from Illinois to Detroit that are best for you.

Fly from

Illinois

Fly to

Detroit

Route

Depart

Return

Price

ChicagoDetroit

ORD - DTW

ORDDTW

Chicago O'Hare Intl

Sun 3/1

6:51 pm-7:49 am

1 stop11h 58m

Detroit Metropolitan Wayne County

Thu 3/5

5:09 am-12:40 am

1 stop20h 31m

$171

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

Sat 2/28

8:17 pm-8:07 am

1 stop10h 50m

Detroit Metropolitan Wayne County

Sun 3/1

2:35 pm-6:51 am

1 stop17h 16m

$173

ChicagoDetroit

ORD - DTW

ORDDTW

Chicago O'Hare Intl

Mon 3/9

12:38 pm-8:22 pm

1 stop6h 44m

Detroit Metropolitan Wayne County

Tue 3/10

10:52 am-11:38 pm

1 stop13h 46m

$179

ChicagoDetroit

ORD - DTW

ORDDTW

Chicago O'Hare Intl

Fri 2/20

6:30 am-5:20 pm

1 stop9h 50m

Detroit Metropolitan Wayne County

Mon 2/23

10:41 am-5:04 pm

1 stop7h 23m

$181

ChicagoDetroit

MDW - DTW

MDWDTW

Chicago Midway

Mon 3/9

6:05 am-4:12 pm

1 stop9h 07m

Detroit Metropolitan Wayne County

Mon 3/16

9:02 am-7:47 pm

1 stop11h 45m

$186

ChicagoDetroit

ORD - DTW

ORDDTW

Chicago O'Hare Intl

Thu 3/19

7:45 pm-10:10 pm

Nonstop1h 25m

Detroit Metropolitan Wayne County

Sat 3/21

7:31 am-8:00 am

Nonstop1h 29m

$191

ChicagoDetroit

ORD - DTW

ORDDTW

Chicago O'Hare Intl

Sat 4/11

7:45 pm-10:12 pm

Nonstop1h 27m

Detroit Metropolitan Wayne County

Sun 4/12

7:18 am-7:53 am

Nonstop1h 35m

$191

ChicagoDetroit

ORD - DTW

ORDDTW

Chicago O'Hare Intl

Fri 2/27

6:51 pm-7:49 am

1 stop11h 58m

Detroit Metropolitan Wayne County

Sun 3/1

10:59 pm-9:22 am

1 stop11h 23m

$197

ChicagoDetroit

MDW - DTW

MDWDTW

Chicago Midway

Tue 2/24

6:10 am-11:17 am

1 stop28h 07m

Detroit Metropolitan Wayne County

Fri 2/27

10:00 pm-9:39 pm

1 stop24h 39m

$200

ChicagoDetroit

ORD - DTW

ORDDTW

Chicago O'Hare Intl

Thu 4/9

9:50 am-12:09 pm

Nonstop1h 19m

Detroit Metropolitan Wayne County

Sun 4/12

6:05 pm-6:34 pm

Nonstop1h 29m

$201

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/11

Showing 1-10 of 60 results
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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.
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

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 $78). Flying from Illinois to Detroit in January is currently the most expensive (average of $224). 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 February 11, 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 evening could potentially save you up to 51% on airfare.

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 February 7, 2026.

Travelers seeking maximum savings on their Illinois to Detroit flight should consider departing on Sunday 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.

  • What airport do you fly into for flights to Detroit from Illinois?

    Detroit All airports (DTT), located 0.6 mi from the city center, is the airport you fly into when you book flights from Illinois to Detroit.

  • How long is the flight from Illinois to Detroit?

    Departing from Illinois to Detroit will take you 1h 25m. Airlines will cover a distance of 234 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Illinois to Detroit one-way?

    For one-way options, check prices for Southwest. According to our data, you can fly for as low as $45. Users have also found prices from $46 and $48 on Delta and American Airlines, respectively.

  • What are the most popular routes from Illinois to Detroit?

    The most popular route from Illinois to Detroit is Chicago O'Hare Intl - Detroit Metropolitan Wayne County. You may also consider Chicago Midway - Detroit Metropolitan Wayne County or Lambert-St Louis - Detroit Metropolitan Wayne County.

  • What are the most reliable airlines from Illinois to Detroit?

    Consider GoJet (84%), PSA Airlines (70%) or United Airlines (68%) when booking your flight. These represent the most reliable airlines when flying from Illinois to Detroit.

  • What are the cheapest flights from Illinois to Detroit?

    While on average a flight from Illinois to Detroit is generally $447, our data shows the cheapest flight currently is $86. When looking at the most popular route, (Chicago O'Hare Intl - Detroit Metropolitan Wayne County), you can expect to pay $139 for that flight.

  • Can I find deals for flights from Illinois to Detroit that include hotel bookings?

    Yes. In addition to deals on Illinois to Detroit flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Illinois to Detroit?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Detroit.

  • Can I find deals for business class flights from Illinois to Detroit?

    Yes. Cheapflights offers flight deals from Illinois to Detroit by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • 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 $78). Flying from Illinois to Detroit in January is currently the most expensive (average of $224). 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.

See more FAQs

Traveling to a place near Detroit?

Book flights to Detroit if you plan to visit one of these locations
Roseville
Port Huron

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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.
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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 February 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$91Average$252FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$97Average$277FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$100Average$394FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$112Average$240FlexibilityNo cancel feeOn-time71%
FrontierCheapest$144Average$178FlexibilityNo cancel feeOn-time62%

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