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$51+ 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 10/4. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — DTT
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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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 September 11, 2025.

Round-trip from

$115
(Delta)

One-way from

$51
(United Airlines)

Popular in

February

Cheapest in

October

Average price

$150

Good round-trip deal

$204 or less

Good one-way deal

$155 or less
From Illinois to Detroit (DTT)
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One-way flight from Illinois to Detroit (DTT)
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Highest demand for flights based on searches. 21% potential increase in price ($65 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($13 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Illinois to Detroit (DTT).
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Price to beat on a one-way flight from Illinois to Detroit (DTT).
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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 September 11, 2025.

This Delta deal was found by Cheapflights users on 9/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/45:00 pmORD - DTW
Nonstop1h 30mDelta
Mon 10/68:00 pmDTW - ORD
Nonstop1h 23mDelta
Deal found 9/11$115
This Southwest deal was found by Cheapflights users on 9/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/112:35 pmMDW - DTW
Nonstop1h 05mSouthwest
Mon 10/138:15 pmDTW - MDW
Nonstop1h 15mSouthwest
Deal found 9/10$115
This American Airlines deal was found by Cheapflights users on 9/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/47:21 pmORD - DTW
Nonstop1h 30mAmerican Airlines
Mon 10/65:30 amDTW - ORD
Nonstop1h 27mAmerican Airlines
Deal found 9/10$116
This Southwest deal was found by Cheapflights users on 9/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/810:00 amMDW - DTW
Nonstop1h 05mSouthwest
Sat 10/113:30 pmDTW - MDW
Nonstop1h 10mSouthwest
Deal found 9/11$116
This United Airlines deal was found by Cheapflights users on 9/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/39:05 pmORD - DTW
Nonstop1h 36mUnited Airlines
Wed 10/226:00 amDTW - ORD
Nonstop1h 30mUnited Airlines
Deal found 9/9$117
This Delta deal was found by Cheapflights users on 9/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/71:08 pmMDW - DTW
Nonstop1h 11mDelta
Sun 10/126:04 pmDTW - MDW
Nonstop1h 21mDelta
Deal found 9/11$117
This American Airlines deal was found by Cheapflights users on 9/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/118:51 pmORD - DTW
Nonstop1h 34mAmerican Airlines
Mon 10/131:07 pmDTW - ORD
Nonstop1h 30mAmerican Airlines
Deal found 9/10$118
This Southwest deal was found by Cheapflights users on 9/9. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/112:35 pmMDW - DTW
Nonstop1h 05mSouthwest
Tue 10/147:25 pmDTW - MDW
1 stop3h 40mSouthwest
Deal found 9/9$118
This American Airlines deal was found by Cheapflights users on 9/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/247:35 amORD - DTW
Nonstop1h 32mAmerican Airlines
Tue 10/2810:07 amDTW - ORD
Nonstop1h 37mAmerican Airlines
Deal found 9/9$120
This Delta deal was found by Cheapflights users on 9/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/3011:05 amORD - DTW
Nonstop1h 22mDelta
Wed 10/18:00 pmDTW - ORD
Nonstop1h 20mDelta
Deal found 9/10$122
This Delta deal was found by Cheapflights users on 9/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/31:08 pmMDW - DTW
Nonstop1h 12mDelta
Wed 10/226:04 pmDTW - MDW
Nonstop1h 21mDelta
Deal found 9/9$122
This Southwest deal was found by Cheapflights users on 9/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/65:30 pmMDW - DTW
Nonstop1h 05mSouthwest
Tue 10/76:40 amDTW - MDW
Nonstop1h 10mSouthwest
Deal found 9/10$124

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 September 11, 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

Wed 11/5

2:20 pm-4:45 pm

Nonstop1h 25m

Detroit Metropolitan Wayne County

Thu 11/6

6:00 am-6:40 am

Nonstop1h 40m

$115

ChicagoDetroit

ORD - DTW

ORDDTW

Chicago O'Hare Intl

Mon 10/20

8:55 am-11:16 am

Nonstop1h 21m

Detroit Metropolitan Wayne County

Tue 10/21

7:30 am-7:50 am

Nonstop1h 20m

$115

ChicagoDetroit

MDW - DTW

MDWDTW

Chicago Midway

Sat 10/11

2:35 pm-4:40 pm

Nonstop1h 05m

Detroit Metropolitan Wayne County

Mon 10/13

8:15 pm-8:30 pm

Nonstop1h 15m

$115

ChicagoDetroit

ORD - DTW

ORDDTW

Chicago O'Hare Intl

Sat 10/4

5:00 pm-7:30 pm

Nonstop1h 30m

Detroit Metropolitan Wayne County

Mon 10/6

8:00 pm-8:23 pm

Nonstop1h 23m

$115

ChicagoDetroit

MDW - DTW

MDWDTW

Chicago Midway

Sat 10/4

9:35 am-11:45 am

Nonstop1h 10m

Detroit Metropolitan Wayne County

Mon 10/6

6:04 pm-6:25 pm

Nonstop1h 21m

$115

ChicagoDetroit

MDW - DTW

MDWDTW

Chicago Midway

Mon 10/20

6:23 pm-8:35 pm

Nonstop1h 12m

Detroit Metropolitan Wayne County

Tue 10/21

8:25 am-8:40 am

Nonstop1h 15m

$115

ChicagoDetroit

MDW - DTW

MDWDTW

Chicago Midway

Wed 10/8

10:00 am-12:05 pm

Nonstop1h 05m

Detroit Metropolitan Wayne County

Sat 10/11

3:30 pm-3:40 pm

Nonstop1h 10m

$116

ChicagoDetroit

ORD - DTW

ORDDTW

Chicago O'Hare Intl

Sat 10/11

5:50 pm-8:26 pm

Nonstop1h 36m

Detroit Metropolitan Wayne County

Mon 10/13

6:05 pm-6:32 pm

Nonstop1h 27m

$117

ChicagoDetroit

ORD - DTW

ORDDTW

Chicago O'Hare Intl

Wed 10/22

8:55 am-11:16 am

Nonstop1h 21m

Detroit Metropolitan Wayne County

Fri 10/24

5:51 pm-6:14 pm

Nonstop1h 23m

$117

ChicagoDetroit

ORD - DTW

ORDDTW

Chicago O'Hare Intl

Fri 10/10

6:59 pm-9:31 pm

Nonstop1h 32m

Detroit Metropolitan Wayne County

Sat 10/11

3:50 pm-4:11 pm

Nonstop1h 21m

$117

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

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, August is the cheapest month in which you can book a flight from Illinois to Detroit (average of $250). Flying from Illinois to Detroit in March is currently the most expensive (average of $305). 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 September 11, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Detroit as you normally would.

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 September 11, 2025.

The most flights from USIL to DTT are scheduled on a Thursday (80 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (32 on average).

How much does it cost to fly round-trip from Illinois to Detroit?

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 05m. 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 United Airlines. According to our data, you can fly for as low as $51. Users have also found prices from $51 and $51 on Delta and Southwest, 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 (95%), Korean Air (80%) or Republic Airways (76%) 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 $562, our data shows the cheapest flight currently is $52. When looking at the most popular route, (Chicago O'Hare Intl - Detroit Metropolitan Wayne County), you can expect to pay $101 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, August is the cheapest month in which you can book a flight from Illinois to Detroit (average of $250). Flying from Illinois to Detroit in March is currently the most expensive (average of $305). 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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San Francisco to Midway flights
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Newark to Midway flights
LaGuardia to Detroit flights
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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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$37Average$69FlexibilityNo cancel feeOn-time65%
DeltaCheapest$91Average$234FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$97Average$405FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$99Average$414FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$107Average$277FlexibilityNo cancel feeOn-time63%

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