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$49+ Cheap flights from Detroit (DTT) to Illinois

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 12/22. Fares are subject to change and may not be available on all flights or dates of travel.
DTT — ORD
nov. 29 — dic. 61
sáb. 11/29
sáb. 12/6
1 adult, Economy
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Find flight deals from Detroit to Illinois

Cheapest flights from Detroit to Illinois
Explore the most affordable flight options available from Detroit to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on octubre 30, 2025.

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.
jue. 12/45:55 pmDTW - ORD
Nonstop1h 32mDelta
lun. 12/87:12 pmORD - DTW
Nonstop1h 29mDelta
Deal found 10/30$97
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.
jue. 12/48:30 amDTW - MDW
Nonstop1h 24mDelta
lun. 12/89:34 amMDW - DTW
Nonstop1h 11mDelta
Deal found 10/30$97
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/47:00 pmDTW - MDW
Nonstop1h 10mSouthwest
lun. 12/86:40 amMDW - DTW
1 stop4h 45mSouthwest
Deal found 10/29$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.
jue. 11/277:00 amDTW - ORD
Nonstop1h 26mUnited Airlines
jue. 12/47:30 amORD - DTW
Nonstop1h 17mUnited 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.
jue. 12/411:58 amDTW - ORD
1 stop11h 26mFrontier
lun. 12/87:00 amORD - DTW
1 stop8h 19mFrontier
Deal found 10/30$110
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/96:10 amDTW - ORD
1 stop7h 05mSouthwest
mié. 12/101:45 pmORD - DTW
1 stop6h 40mSouthwest
Deal found 10/28$117
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.
lun. 12/85:40 amDTW - MDW
1 stop5h 30mSouthwest
jue. 12/116:40 amMDW - DTW
1 stop4h 45mSouthwest
Deal found 10/30$117
This United Airlines deal was found by Cheapflights users on 10/27. 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.
lun. 12/86:00 pmDTW - ORD
Nonstop1h 35mUnited Airlines
jue. 1/17:55 pmORD - DTW
Nonstop1h 35mUnited Airlines
Deal found 10/27$119
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.
lun. 11/246:00 amDTW - ORD
Nonstop1h 40mUnited Airlines
lun. 11/247:50 pmORD - DTW
Nonstop1h 25mUnited Airlines
Deal found 10/29$121
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.
mar. 11/1810:42 amDTW - ORD
1 stop8h 52mMultiple Airlines
mié. 11/196:40 amORD - DTW
1 stop16h 27mMultiple Airlines
Deal found 10/28$125
This Delta deal was found by Cheapflights users on 10/27. 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.
mar. 12/91:18 pmDTW - ORD
Nonstop1h 32mDelta
jue. 1/19:41 amORD - DTW
Nonstop1h 33mDelta
Deal found 10/27$127
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/35:40 amDTW - MDW
2 stops8h 20mSouthwest
jue. 12/42:30 pmMDW - DTW
2 stops7h 05mSouthwest
Deal found 10/29$127

Cheap flight deals from Detroit to Illinois

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

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$97
(Delta)

One-way from

$49
(United Airlines)

Popular in

June

Cheapest in

October

Average price

$144

Good round-trip deal

$274 or less

Good one-way deal

$167 or less
Provider with most accurate pricing for Detroit (DTT)-Chicago (CHI) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Detroit (DTT)-Chicago (CHI) flights.
Search Deals
From Detroit (DTT) to Illinois
Search Deals
One-way flight from Detroit (DTT) to Illinois
Search Deals
Highest demand for flights based on searches. 22% potential increase in price ($64 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($8 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 Detroit (DTT) to Illinois.
Search Deals
Price to beat on a one-way flight from Detroit (DTT) to Illinois.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Detroit to Illinois 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 octubre 30, 2025.
Use the filters below to find and compare flights from Detroit to Illinois that are best for you.

Fly from

Detroit

Fly to

Illinois

Route

Depart

Return

Price

DetroitChicago

DTW - ORD

DTWORD

Detroit Metropolitan Wayne County

lun. 12/8

7:30 am-8:04 am

Nonstop1h 34m

Chicago O'Hare Intl

mié. 12/10

6:00 pm-8:43 pm

Nonstop1h 43m

$97

DetroitChicago

DTW - ORD

DTWORD

Detroit Metropolitan Wayne County

jue. 12/4

7:30 am-8:04 am

Nonstop1h 34m

Chicago O'Hare Intl

lun. 12/8

10:45 am-1:12 pm

Nonstop1h 27m

$97

DetroitChicago

DTW - ORD

DTWORD

Detroit Metropolitan Wayne County

jue. 12/18

1:18 pm-1:50 pm

Nonstop1h 32m

Chicago O'Hare Intl

mar. 1/6

6:08 pm-8:36 pm

Nonstop1h 28m

$97

DetroitChicago

DTW - ORD

DTWORD

Detroit Metropolitan Wayne County

lun. 1/12

4:57 pm-5:21 pm

Nonstop1h 24m

Chicago O'Hare Intl

mar. 1/13

11:05 am-1:27 pm

Nonstop1h 22m

$97

DetroitChicago

DTW - ORD

DTWORD

Detroit Metropolitan Wayne County

mié. 12/17

7:30 am-8:04 am

Nonstop1h 34m

Chicago O'Hare Intl

mar. 1/6

1:54 pm-4:10 pm

Nonstop1h 16m

$97

DetroitChicago

DTW - MDW

DTWMDW

Detroit Metropolitan Wayne County

jue. 12/4

8:30 am-8:54 am

Nonstop1h 24m

Chicago Midway

lun. 12/8

9:34 am-11:45 am

Nonstop1h 11m

$97

DetroitChicago

DTW - MDW

DTWMDW

Detroit Metropolitan Wayne County

lun. 12/22

8:25 am-8:49 am

Nonstop1h 24m

Chicago Midway

mar. 12/23

6:08 pm-8:28 pm

Nonstop1h 20m

$97

DetroitChicago

DTW - MDW

DTWMDW

Detroit Metropolitan Wayne County

lun. 1/12

6:50 am-7:15 am

Nonstop1h 25m

Chicago Midway

mar. 1/13

1:50 pm-8:25 pm

1 stop5h 35m

$107

DetroitChicago

DTW - MDW

DTWMDW

Detroit Metropolitan Wayne County

mié. 12/17

7:00 pm-7:10 pm

Nonstop1h 10m

Chicago Midway

jue. 12/18

2:55 pm-10:20 pm

1 stop6h 25m

$107

DetroitChicago

DTW - MDW

DTWMDW

Detroit Metropolitan Wayne County

jue. 12/4

12:55 pm-1:05 pm

Nonstop1h 10m

Chicago Midway

lun. 12/8

2:30 pm-10:35 pm

2 stops7h 05m

$112

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/29

Showing 1-10 of 60 results
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Best time to book a flight from Detroit to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Detroit 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 Detroit to Illinois

What is the cheapest month to book a flight from Detroit to Illinois?

Currently, November is the cheapest month in which you can book a flight from Detroit to Illinois (average of $69). Flying from Detroit to Illinois in January is currently the most expensive (average of $137). 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 DTT to IL?

Find hourly flight availability from Detroit to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated octubre 30, 2025.

It’s typically best to fly out from Detroit to Illinois in the afternoon. Doing so could potentially save you 34% on the flight price compared to flying at noon, which is usually more expensive.

What is the cheapest day to fly from Detroit to Illinois?

Use this chart to determine the cheapest time to fly round-trip from Detroit to Illinois. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Detroit to Illinois flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Illinois. Reviews last updated octubre 30, 2025.
Read through reviews of airlines operating flights from Detroit to Illinois, such as Southwest, Delta, and United Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,243 reviews

Comfort

8.0

Entertainment

7.5

Crew

8.6

Overall

8.0

Boarding

8.1

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,243 reviews
Southwest
8.0
Very good
4,243 reviews

Comfort

8.0

Entertainment

7.5

Crew

8.6

Overall

8.0

Boarding

8.1

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Delta
7.9
Good
7,998 reviews
Southwest
8.0
Very good
4,243 reviews

Comfort

8.0

Entertainment

7.5

Crew

8.6

Overall

8.0

Boarding

8.1

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
8,998 reviews
Southwest
8.0
Very good
4,243 reviews

Comfort

8.0

Entertainment

7.5

Crew

8.6

Overall

8.0

Boarding

8.1

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
11,035 reviews
Southwest
8.0
Very good
4,243 reviews

Comfort

8.0

Entertainment

7.5

Crew

8.6

Overall

8.0

Boarding

8.1

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Related info for your journey

Find useful and relevant information for your journey from Detroit to Illinois. 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 from for flights from Detroit to Illinois?

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

  • How long is the flight from Detroit to Illinois?

    Airlines like Delta and Southwest fly from Detroit to Illinois in about 1h 25m. The time it takes to get you to your destination is usually consistent. Airlines will cover a distance of 227 mi. All flights are typically nonstop.

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

    To fly one-way, consider booking your trip with United Airlines, which is currently one of the cheapest options available, starting at $49. Delta flights start at $49 while deals on Southwest start at $49 one-way.

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

    While some choose either Detroit Metropolitan Wayne County - Chicago Midway or Detroit Metropolitan Wayne County - Lambert-St Louis, Detroit Metropolitan Wayne County - Chicago O'Hare Intl is the most popular route from Detroit to Illinois.

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

    Before booking your flight to Illinois from Detroit, check out the most reliable airlines to get you to your destination on time: SWISS (88%), Scandinavian Airlines (88%), Endeavor Airlines( 87%).

  • What are the cheapest flights from Detroit to Illinois?

    On average you can expect to pay $886 for a flight from Detroit to Illinois. The cheapest flight overall is $74 while the most popular route, (Detroit Metropolitan Wayne County - Chicago O'Hare Intl) is currently priced at $97.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Detroit to Illinois 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 Detroit to Illinois?

    Currently, November is the cheapest month in which you can book a flight from Detroit to Illinois (average of $69). Flying from Detroit to Illinois in January is currently the most expensive (average of $137). 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.

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Alternative routes for Detroit to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Detroit to Illinois

Discover the top 5 airlines that operate flights from Detroit to Illinois. 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 octubre 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$82Average$184FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$97Average$409FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$97Average$371FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$97Average$275FlexibilityNo cancel feeOn-time63%
DeltaCheapest$97Average$258FlexibilityNo cancel feeOn-timeN/A

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