HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Detroit

$55+ 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 12/11. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — DTT
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

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

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Find 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 October 30, 2025.

This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/46:40 amMDW - DTW
1 stop4h 45mSouthwest
Mon 12/87:00 pmDTW - MDW
Nonstop1h 10mSouthwest
Deal found 10/30$107
This United Airlines deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/247:55 pmORD - DTW
Nonstop1h 35mUnited Airlines
Thu 1/17:15 amDTW - ORD
Nonstop1h 43mUnited Airlines
Deal found 10/29$109
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.
Thu 11/135:11 amORD - DTW
1 stop11h 05mFrontier
Mon 11/175:14 pmDTW - ORD
1 stop8h 01mFrontier
Deal found 10/30$110
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.
Sat 11/156:15 amMDW - DTW
1 stop10h 11mFrontier
Mon 11/175:57 pmDTW - MDW
1 stop5h 14mFrontier
Deal found 10/30$110
This Frontier deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/49:53 pmORD - DTW
1 stop13h 04mFrontier
Mon 12/812:32 pmDTW - ORD
1 stop5h 22mFrontier
Deal found 10/29$111
This Kiwi.com deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/126:40 amORD - DTW
1 stop16h 27mMultiple Airlines
Tue 11/1810:42 amDTW - ORD
1 stop27h 03mMultiple Airlines
Deal found 10/28$120
This Kiwi.com deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/117:34 pmORD - DTW
1 stop18h 41mMultiple Airlines
Tue 11/1810:42 amDTW - ORD
1 stop27h 03mMultiple Airlines
Deal found 10/28$125
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 12/241:35 pmORD - DTW
Nonstop1h 34mDelta
Wed 1/78:59 amDTW - ORD
Nonstop1h 41mDelta
Deal found 10/30$127
This Kiwi.com deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/116:40 amORD - DTW
1 stop16h 27mMultiple Airlines
Wed 11/1210:42 amDTW - ORD
1 stop8h 52mMultiple Airlines
Deal found 10/28$131
This Booking.com deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/136:30 amMDW - DTW
1 stop9h 46mFrontier
Thu 11/137:28 pmDTW - MDW
1 stop26h 03mFrontier
Deal found 10/29$131
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.
Thu 11/136:40 amORD - DTW
1 stop16h 27mMultiple Airlines
Tue 11/1810:42 amDTW - ORD
1 stop8h 52mMultiple Airlines
Deal found 10/30$132
This Delta deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/46:45 amORD - DTW
Nonstop1h 27mDelta
Sat 12/68:00 pmDTW - ORD
Nonstop1h 35mDelta
Deal found 10/29$134

Cheap flight deals from Illinois to Detroit

Keep the following information in mind while searching for Illinois to Detroit flight deals. Data was last updated October 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$107
(Southwest)

One-way from

$55
(Mytrip)

Popular in

February

Cheapest in

October

Average price

$198

Good round-trip deal

$196 or less

Good one-way deal

$105 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. 14% potential increase in price ($44 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
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 October 30, 2025.
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

MDW - DTW

MDWDTW

Chicago Midway

Thu 12/4

6:40 am-12:25 pm

1 stop4h 45m

Detroit Metropolitan Wayne County

Mon 12/8

7:00 pm-7:10 pm

Nonstop1h 10m

$107

ChicagoDetroit

MDW - DTW

MDWDTW

Chicago Midway

Thu 1/15

3:05 pm-11:00 pm

2 stops6h 55m

Detroit Metropolitan Wayne County

Mon 1/19

6:35 am-7:00 am

Nonstop1h 25m

$112

ChicagoDetroit

ORD - DTW

ORDDTW

Chicago O'Hare Intl

Thu 1/15

1:45 pm-9:45 pm

1 stop7h 00m

Detroit Metropolitan Wayne County

Mon 1/19

6:00 am-12:15 pm

1 stop7h 15m

$117

ChicagoDetroit

ORD - DTW

ORDDTW

Chicago O'Hare Intl

Thu 12/4

6:45 am-9:12 am

Nonstop1h 27m

Detroit Metropolitan Wayne County

Sat 12/6

9:26 am-10:00 am

Nonstop1h 34m

$134

ChicagoDetroit

ORD - DTW

ORDDTW

Chicago O'Hare Intl

Wed 12/10

10:45 am-1:12 pm

Nonstop1h 27m

Detroit Metropolitan Wayne County

Sat 12/13

1:48 pm-2:17 pm

Nonstop1h 29m

$134

ChicagoDetroit

ORD - DTW

ORDDTW

Chicago O'Hare Intl

Sat 11/15

6:45 am-1:36 pm

1 stop5h 51m

Detroit Metropolitan Wayne County

Tue 11/18

2:31 pm-8:52 pm

1 stop7h 21m

$153

ChicagoDetroit

ORD - DTW

ORDDTW

Chicago O'Hare Intl

Mon 12/22

6:10 pm-8:58 pm

Nonstop1h 48m

Detroit Metropolitan Wayne County

Thu 12/25

5:49 am-6:30 am

Nonstop1h 41m

$157

ChicagoDetroit

ORD - DTW

ORDDTW

Chicago O'Hare Intl

Fri 11/14

7:34 pm-3:15 pm

1 stop18h 41m

Detroit Metropolitan Wayne County

Sun 11/16

9:39 pm-6:34 pm

1 stop21h 55m

$160

ChicagoDetroit

ORD - DTW

ORDDTW

Chicago O'Hare Intl

Sun 2/8

2:05 pm-11:56 pm

1 stop8h 51m

Detroit Metropolitan Wayne County

Tue 2/10

6:00 am-1:10 pm

1 stop8h 10m

$173

ChicagoDetroit

ORD - DTW

ORDDTW

Chicago O'Hare Intl

Wed 11/12

6:45 am-1:36 pm

1 stop5h 51m

Detroit Metropolitan Wayne County

Tue 11/18

2:31 pm-8:52 pm

1 stop7h 21m

$180

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

Showing 1-10 of 60 results
1
2
3
...
6

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 $48). Flying from Illinois to Detroit in February is currently the most expensive (average of $231). 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 October 30, 2025.

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 37% 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 December 16, 2024.

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

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 27m. 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 $59. Users have also found prices from $59 and $65 on Delta and Frontier, 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 (100%), Virgin Atlantic (88%) or WestJet (87%) 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 $767, our data shows the cheapest flight currently is $48. When looking at the most popular route, (Chicago O'Hare Intl - Detroit Metropolitan Wayne County), you can expect to pay $97 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 $48). Flying from Illinois to Detroit in February is currently the most expensive (average of $231). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Illinois to Detroit

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to O'Hare Intl flights
Dallas/Fort Worth to O'Hare Intl flights
LaGuardia to O'Hare Intl flights
Newark to O'Hare Intl flights
Los Angeles to O'Hare Intl flights
San Francisco to O'Hare Intl flights
Reagan-National to O'Hare Intl flights
Baltimore to O'Hare Intl flights
Dulles Intl to O'Hare Intl flights
Seattle to O'Hare Intl flights
John F Kennedy Intl to Detroit flights
Denver to O'Hare Intl flights
Philadelphia to O'Hare Intl flights
Boston to O'Hare Intl flights
Atlanta to O'Hare Intl flights
John F Kennedy Intl to Midway flights
Baltimore to Midway flights
Dallas/Fort Worth to Midway flights
Ontario to O'Hare Intl flights
Minneapolis to O'Hare Intl flights
Los Angeles to Detroit flights
Los Angeles to Midway flights
Hobby to Midway flights
Atlanta to Midway flights
Dallas/Fort Worth to Detroit flights
LaGuardia to Midway flights
Newark to Midway flights
Sky Harbor Intl to O'Hare Intl flights
Denver to Midway flights
Philadelphia to Midway flights
Charlotte to O'Hare Intl flights
Fort Lauderdale to O'Hare Intl flights
San Francisco to Midway flights
Newark to Detroit flights
George Bush Intcntl to O'Hare Intl flights
Dulles Intl to Midway flights
Hobby to O'Hare Intl flights
Tampa to O'Hare Intl flights
Miami to O'Hare Intl flights
Minneapolis to Midway flights
Raleigh to O'Hare Intl flights
Santa Ana to O'Hare Intl flights
Reagan-National to Midway flights
San Francisco to Detroit flights
LaGuardia to Detroit flights
Austin to O'Hare Intl flights
Cleveland to O'Hare Intl flights
Love Field to O'Hare Intl flights
Hartford to O'Hare Intl flights
Orlando to O'Hare Intl flights

Top 6 airlines flying from Illinois to Detroit

Discover the top 6 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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$58Average$138FlexibilityNo cancel feeOn-time65%
DeltaCheapest$91Average$248FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$97Average$406FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$107Average$277FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$112Average$398FlexibilityNo cancel feeOn-time71%
FrontierCheapest$144Average$178FlexibilityNo cancel feeOn-time62%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.