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Cheap flights from Detroit to Illinois from $70

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Detroit to Illinois departing on 4/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Detroit to Illinois

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
6:15 am - 3:17 pm
DTW
-
ORD
10h 02m
1 stop
Multiple Airlines Logo
5:09 pm - 12:20 am
ORD
-
DTW
6h 11m
1 stop
$144Multiple Airlines
Wed, Apr 15 - Mon, Apr 20
American Airlines Logo
6:00 am - 6:24 am
DTW
-
ORD
1h 24mnonstop
American Airlines Logo
6:45 am - 9:13 am
ORD
-
DTW
1h 28mnonstop
$151American Airlines
Sun, May 3 - Sun, May 17
Multiple Airlines Logo
9:31 pm - 8:50 am
DTW
-
ORD
12h 19m
1 stop
Multiple Airlines Logo
8:25 am - 12:19 am
ORD
-
DTW
14h 54m
1 stop
$152Multiple Airlines
Tue, Mar 31 - Wed, Apr 29
Frontier Logo
5:17 pm - 1:19 pm
DTW
-
STL
21h 02m
1 stop
Frontier Logo
11:32 am - 8:07 am
STL
-
DTW
19h 35m
1 stop
$154Frontier
Sun, Mar 8 - Wed, Mar 11
Frontier Logo
5:08 pm - 10:39 pm
DTW
-
ORD
6h 31m
1 stop
Frontier Logo
9:28 am - 4:12 pm
ORD
-
DTW
5h 44m
1 stop
$155Frontier
Mon, Mar 2 - Tue, Mar 10
Southwest Logo
8:15 pm - 8:30 pm
DTW
-
MDW
1h 15mnonstop
Southwest Logo
7:45 am - 9:50 am
MDW
-
DTW
1h 05mnonstop
$163Southwest
Sat, Mar 14 - Mon, Mar 16
Southwest Logo
8:15 pm - 8:30 pm
DTW
-
MDW
1h 15mnonstop
Southwest Logo
2:35 pm - 10:10 pm
MDW
-
DTW
6h 35m
1 stop
$173Southwest
Sat, Mar 14 - Mon, Mar 16
United Airlines Logo
9:00 am - 1:45 pm
DTW
-
PIA
5h 45m
1 stop
United Airlines Logo
5:25 pm - 11:34 pm
PIA
-
DTW
5h 09m
1 stop
$249United Airlines
Sat, Mar 14 - Mon, Mar 16
United Airlines Logo
5:48 am - 10:09 am
DTW
-
MLI
5h 21m
1 stop
United Airlines Logo
3:25 pm - 10:10 pm
MLI
-
DTW
5h 45m
1 stop
$249United Airlines
Wed, Mar 18 - Mon, Mar 23
Delta Logo
5:20 am - 10:39 am
DTW
-
EVV
6h 19m
1 stop
Delta Logo
5:59 pm - 12:43 am
EVV
-
DTW
5h 44m
1 stop
$337Delta
Thu, Mar 12 - Thu, Mar 19

Frontier flights from Detroit to Illinois

Our best Frontier deals on Detroit to Illinois flight tickets
Frontier
Mar 8
DTW5:17 pmDetroit Metropolitan Wayne County
21h 02m
1 stop
STL1:19 pmLambert-St Louis
Mar 11
STL11:32 amLambert-St Louis
19h 35m
1 stop
DTW8:07 amDetroit Metropolitan Wayne County
$154
Frontier
Mar 2
DTW5:08 pmDetroit Metropolitan Wayne County
6h 31m
1 stop
ORD10:39 pmChicago O'Hare Intl
Mar 10
ORD9:28 amChicago O'Hare Intl
5h 44m
1 stop
DTW4:12 pmDetroit Metropolitan Wayne County
$155
Frontier
May 8
DTW2:27 pmDetroit Metropolitan Wayne County
9h 12m
1 stop
ORD10:39 pmChicago O'Hare Intl
May 10
ORD1:27 pmChicago O'Hare Intl
10h 11m
1 stop
DTW12:38 amDetroit Metropolitan Wayne County
$160

Spirit Airlines flights from Detroit to Illinois

Our best Spirit Airlines deals on Detroit to Illinois flight tickets
Spirit Airlines
Mar 23
DTW11:34 amDetroit Metropolitan Wayne County
13h 48m
1 stop
ORD12:22 amChicago O'Hare Intl
Mar 25
ORD6:01 pmChicago O'Hare Intl
13h 45m
1 stop
DTW8:46 amDetroit Metropolitan Wayne County
$147
Spirit Airlines
Apr 15
DTW9:16 amDetroit Metropolitan Wayne County
6h 20m
1 stop
ORD2:36 pmChicago O'Hare Intl
Apr 16
ORD5:09 pmChicago O'Hare Intl
22h 04m
1 stop
DTW4:13 pmDetroit Metropolitan Wayne County
$154
Spirit Airlines
Mar 9
DTW8:00 amDetroit Metropolitan Wayne County
12h 47m
1 stop
ORD7:47 pmChicago O'Hare Intl
Mar 12
ORD6:01 pmChicago O'Hare Intl
13h 45m
1 stop
DTW8:46 amDetroit Metropolitan Wayne County
$157

momondo 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, momondo users made 832,500 searches. Data last updated February 18, 2026.
Use the filters below to find and compare flights from Detroit to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DetroitChicago

DTW - ORD

DTWORD

Detroit Metropolitan Wayne County

Wed 4/15

6:15 am-3:17 pm

1 stop10h 02m

Chicago O'Hare Intl

Mon 4/20

5:09 pm-12:20 am

1 stop6h 11m

$144

DetroitChicago

DTW - ORD

DTWORD

Detroit Metropolitan Wayne County

Sun 5/3

6:00 am-6:24 am

Nonstop1h 24m

Chicago O'Hare Intl

Sun 5/17

6:45 am-9:13 am

Nonstop1h 28m

$151

DetroitChicago

DTW - ORD

DTWORD

Detroit Metropolitan Wayne County

Tue 3/31

9:31 pm-8:50 am

1 stop12h 19m

Chicago O'Hare Intl

Wed 4/29

8:25 am-12:19 am

1 stop14h 54m

$152

DetroitSt. Louis

DTW - STL

DTWSTL

Detroit Metropolitan Wayne County

Sun 3/8

5:17 pm-1:19 pm

1 stop21h 02m

Lambert-St Louis

Wed 3/11

11:32 am-8:07 am

1 stop19h 35m

$154

DetroitChicago

DTW - ORD

DTWORD

Detroit Metropolitan Wayne County

Mon 3/2

5:08 pm-10:39 pm

1 stop6h 31m

Chicago O'Hare Intl

Tue 3/10

9:28 am-4:12 pm

1 stop5h 44m

$155

DetroitChicago

DTW - MDW

DTWMDW

Detroit Metropolitan Wayne County

Sat 3/14

8:15 pm-8:30 pm

Nonstop1h 15m

Chicago Midway

Mon 3/16

7:45 am-9:50 am

Nonstop1h 05m

$163

DetroitChicago

DTW - MDW

DTWMDW

Detroit Metropolitan Wayne County

Sat 3/14

8:15 pm-8:30 pm

Nonstop1h 15m

Chicago Midway

Mon 3/16

2:35 pm-10:10 pm

1 stop6h 35m

$173

DetroitPeoria

DTW - PIA

DTWPIA

Detroit Metropolitan Wayne County

Sat 3/14

9:00 am-1:45 pm

1 stop5h 45m

Greater Peoria

Mon 3/16

5:25 pm-11:34 pm

1 stop5h 09m

$249

DetroitMoline

DTW - MLI

DTWMLI

Detroit Metropolitan Wayne County

Wed 3/18

5:48 am-10:09 am

1 stop5h 21m

Moline Quad-City

Mon 3/23

3:25 pm-10:10 pm

1 stop5h 45m

$249

DetroitEvansville

DTW - EVV

DTWEVV

Detroit Metropolitan Wayne County

Thu 3/12

5:20 am-10:39 am

1 stop6h 19m

Evansville Dress Regional

Thu 3/19

5:59 pm-12:43 am

1 stop5h 44m

$337

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Illinois from

How to get the cheapest flight ticket from Detroit to Illinois

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Illinois?

The cheapest month to fly to Illinois from Detroit is in September. Flight prices, which tend to average around $151, are often lower during this time because this is during the off-season. If you aren’t able to travel to Illinois during the month of September, then flying in April is also cheap. Prices for this month can be found on momondo for an average of $161.

What is the cheapest day to depart on your flight to Illinois?

The cheapest day to depart from Detroit to Illinois is on a Thursday when prices can be found for as low as $532. Flights from Detroit to Illinois on a Monday will generally be more expensive and average around $732. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Illinois?

Our most recent data shows that the best time of day to fly to Illinois is in the morning. Flights from Detroit to Illinois during this time can be as low as $509. Flights at noon are often more expensive with an average ticket price of $868.

What is the cheapest Detroit to Illinois flight route?

Fly from Detroit Metropolitan Wayne County to Chicago Midway for the best Detroit - Illinois flight prices

How far in advance should I book a flight to Illinois?

You are more likely to see cheaper flights to Illinois from Detroit when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $270 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Detroit for as low as $111 on momondo.

What cabin class options are available on Detroit to Illinois flights?

There are 4 cabin classes available to choose from on Detroit to Illinois flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Detroit to Illinois flights?

No. A direct flight is the cheapest option for a flight between Detroit to Illinois.

Cheap Detroit to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Detroit to Illinois

Best Price Found

$185

Fastest flight time

1h 10m

Direct flights

Every day

Airports in Illinois

98 airports
The best one-way flight to Illinois from Detroit in the past 72 hours is $185. The best round-trip flight deal from Detroit to Illinois found on momondo in the last 72 hours is $338.
The fastest flight from Detroit to Illinois takes 1h 10m
Direct flights go from Detroit to Illinois every day.
There are 98 airports in Illinois. From Detroit there are direct flights to Chicago O'Hare Intl (ORD), Chicago Midway (MDW).
Search flight deals

  • When did momondo last update prices for flights from Detroit to Illinois?

    Prices for flights from Detroit to Illinois were last updated today.

  • How many operators does momondo search for flights from Detroit to Illinois?

  • How old do you have to be to fly from Detroit to Illinois?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Detroit to Illinois.

  • What documentation or ID do you need to fly to Illinois?

    The required travel and health documents for your Illinois trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Illinois. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Detroit to Illinois?

Best airlines flying from Detroit to Illinois

Compare and see reviews for airlines that fly from Detroit to Illinois with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $93Free CancellationRating
7.9
8,207 reviews
Search Delta flights
United AirlinesPriceFrom $94Free CancellationRating
7.4
9,312 reviews
Search United Airlines flights
American AirlinesPriceFrom $97Free CancellationRating
7.2
11,304 reviews
Search American Airlines flights
SouthwestPriceFrom $97Free CancellationRating
8.0
4,294 reviews
Search Southwest flights

Why use momondo?

Why should I use momondo to find a flight deal from Detroit to Illinois?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Illinois from Detroit.

Can I find flights from Detroit to Illinois with flexible booking policies on momondo?

momondo does allow users to show only those flights to Illinois from Detroit which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Detroit to Illinois?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Detroit to Illinois.

I’m not ready to book a flight from Detroit to Illinois right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Illinois, momondo offers a useful price alert feature which will track prices for flights to Illinois from Detroit and alert you when they change.

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