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$64+ 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 2/24. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — DTT
Jan 16 — Jan 231
Fri 1/16
Fri 1/23
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 December 17, 2025.

This Delta deal was found by Cheapflights users on 12/15. 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 12/259:41 amORD - DTW
Nonstop1h 33mDelta
Wed 12/318:05 pmDTW - ORD
Nonstop1h 31mDelta
Deal found 12/15$175
This Delta deal was found by Cheapflights users on 12/15. 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 12/256:08 pmMDW - DTW
Nonstop1h 20mDelta
Wed 12/315:07 pmDTW - MDW
Nonstop1h 19mDelta
Deal found 12/15$175
This American Airlines deal was found by Cheapflights users on 12/16. 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 12/241:30 pmORD - DTW
Nonstop1h 30mAmerican Airlines
Wed 12/316:39 pmDTW - ORD
Nonstop1h 53mAmerican Airlines
Deal found 12/16$209
This Frontier deal was found by Cheapflights users on 12/16. 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 12/255:25 amORD - DTW
1 stop4h 55mFrontier
Thu 1/110:49 amDTW - ORD
1 stop8h 44mFrontier
Deal found 12/16$212
This American Airlines deal was found by Cheapflights users on 12/15. 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 12/315:00 amORD - DTW
1 stop5h 11mAmerican Airlines
Wed 12/316:39 pmDTW - ORD
Nonstop1h 53mAmerican Airlines
Deal found 12/15$215
This United Airlines deal was found by Cheapflights users on 12/14. 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 12/243:30 pmPIA - DTW
1 stop6h 00mUnited Airlines
Wed 12/317:15 amDTW - PIA
1 stop6h 05mUnited Airlines
Deal found 12/14$229
This United Airlines deal was found by Cheapflights users on 12/15. 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
Wed 12/319:12 amDTW - ORD
Nonstop1h 43mUnited Airlines
Deal found 12/15$235
This Delta deal was found by Cheapflights users on 12/15. 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 12/317:00 amORD - DTW
Nonstop1h 28mDelta
Mon 1/58:59 amDTW - ORD
Nonstop1h 42mDelta
Deal found 12/15$248
This Mytrip deal was found by Cheapflights users on 12/15. 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.
Wed 12/313:26 pmORD - DTW
2 stops15h 03mSpirit Airlines
Mon 1/510:27 pmDTW - ORD
1 stop11h 04mSpirit Airlines
Deal found 12/15$250
This Kiwi.com deal was found by Cheapflights users on 12/16. 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 12/316:12 amMDW - DTW
1 stop10h 59mMultiple Airlines
Sun 1/45:10 amDTW - MDW
1 stop8h 51mMultiple Airlines
Deal found 12/16$252
This Kiwi.com deal was found by Cheapflights users on 12/15. 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 12/316:05 amORD - DTW
1 stop11h 06mMultiple Airlines
Mon 1/55:15 pmDTW - ORD
1 stop16h 16mMultiple Airlines
Deal found 12/15$256
This Frontier deal was found by Cheapflights users on 12/16. 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 12/265:15 amORD - DTW
1 stop9h 13mFrontier
Thu 1/110:49 amDTW - ORD
1 stop8h 44mFrontier
Deal found 12/16$257

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 December 17, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$132
(Kiwi.com)

One-way from

$64
(Frontier)

Popular in

February

Cheapest in

May

Average price

$276

Good round-trip deal

$239 or less

Good one-way deal

$134 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. 10% potential increase in price ($32 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 December 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 December 17, 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

ORD - DTW

ORDDTW

Chicago O'Hare Intl

Tue 2/3

1:58 pm-4:26 pm

Nonstop1h 28m

Detroit Metropolitan Wayne County

Wed 3/4

8:59 am-9:41 am

Nonstop1h 42m

$153

ChicagoDetroit

ORD - DTW

ORDDTW

Chicago O'Hare Intl

Tue 1/13

5:59 pm-8:26 pm

Nonstop1h 27m

Detroit Metropolitan Wayne County

Tue 1/20

2:19 pm-2:50 pm

Nonstop1h 31m

$153

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

Wed 1/14

8:32 pm-2:17 pm

1 stop16h 45m

Detroit Metropolitan Wayne County

Wed 1/21

5:15 am-11:33 pm

1 stop19h 18m

$153

ChicagoDetroit

ORD - DTW

ORDDTW

Chicago O'Hare Intl

Tue 1/13

6:50 am-9:22 am

Nonstop1h 32m

Detroit Metropolitan Wayne County

Tue 1/13

4:59 pm-5:26 pm

Nonstop1h 27m

$153

ChicagoDetroit

MDW - DTW

MDWDTW

Chicago Midway

Tue 2/3

1:26 pm-3:33 pm

Nonstop1h 07m

Detroit Metropolitan Wayne County

Wed 3/4

12:25 pm-12:46 pm

Nonstop1h 21m

$153

ChicagoDetroit

MDW - DTW

MDWDTW

Chicago Midway

Tue 1/13

9:32 am-11:43 am

Nonstop1h 11m

Detroit Metropolitan Wayne County

Tue 1/20

12:30 pm-12:51 pm

Nonstop1h 21m

$153

ChicagoDetroit

MDW - DTW

MDWDTW

Chicago Midway

Wed 2/4

10:00 am-12:10 pm

Nonstop1h 10m

Detroit Metropolitan Wayne County

Wed 3/4

1:40 pm-1:55 pm

Nonstop1h 15m

$162

ChicagoDetroit

MDW - DTW

MDWDTW

Chicago Midway

Tue 1/13

1:25 pm-3:30 pm

Nonstop1h 05m

Detroit Metropolitan Wayne County

Tue 1/13

6:30 pm-6:45 pm

Nonstop1h 15m

$162

ChicagoDetroit

ORD - DTW

ORDDTW

Chicago O'Hare Intl

Sat 1/10

6:50 am-9:22 am

Nonstop1h 32m

Detroit Metropolitan Wayne County

Tue 1/13

8:38 pm-9:05 pm

Nonstop1h 27m

$162

ChicagoDetroit

ORD - DTW

ORDDTW

Chicago O'Hare Intl

Tue 2/17

5:37 pm-8:02 pm

Nonstop1h 25m

Detroit Metropolitan Wayne County

Thu 2/26

12:55 pm-1:22 pm

Nonstop1h 27m

$162

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

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 $80). Flying from Illinois to Detroit in January is currently the most expensive (average of $194). 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 December 17, 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 35% 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 10m. Airlines will cover a distance of 227 mi. Generally, flights for this route are nonstop.

  • 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 Republic Airways (83%), Korean Air (74%) or Envoy Air (73%) 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 $772, our data shows the cheapest flight currently is $98. When looking at the most popular route, (Chicago O'Hare Intl - Detroit Metropolitan Wayne County), you can expect to pay $137 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 $80). Flying from Illinois to Detroit in January is currently the most expensive (average of $194). 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 December 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$97Average$391FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$97Average$257FlexibilityNo cancel feeOn-time63%
DeltaCheapest$97Average$259FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$112Average$242FlexibilityNo cancel feeOn-time71%
FrontierCheapest$144Average$178FlexibilityNo cancel feeOn-time62%

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