Cheap flights from Illinois to Detroit 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 Illinois to Detroit departing on 3/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.

Find the cheapest flights from Illinois to Detroit

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
8:17 pm - 8:07 am
STL
-
DTW
10h 50m
1 stop
Frontier Logo
9:02 am - 1:19 pm
DTW
-
STL
5h 17m
1 stop
$138Frontier
Wed, Mar 4 - Mon, Mar 9
Frontier Logo
8:17 pm - 8:07 am
STL
-
DTW
10h 50m
1 stop
Frontier Logo
5:07 pm - 10:37 am
DTW
-
STL
18h 30m
1 stop
$141Frontier
Wed, Mar 4 - Tue, Mar 10
Multiple Airlines Logo
8:17 pm - 8:07 am
STL
-
DTW
10h 50m
1 stop
Multiple Airlines Logo
8:52 pm - 10:37 am
DTW
-
STL
14h 45m
2 stops
$166Multiple Airlines
Wed, Mar 4 - Tue, Mar 10
Multiple Airlines Logo
7:30 am - 3:57 pm
MDW
-
DTW
7h 27m
1 stop
Multiple Airlines Logo
10:59 pm - 1:02 pm
DTW
-
MDW
15h 03m
1 stop
$170Multiple Airlines
Thu, Mar 5 - Mon, Mar 9
Spirit Airlines Logo
6:51 pm - 7:49 am
ORD
-
DTW
11h 58m
1 stop
Spirit Airlines Logo
2:35 pm - 11:47 pm
DTW
-
ORD
10h 12m
2 stops
$173Spirit Airlines
Sat, Feb 28 - Wed, Mar 4
Spirit Airlines Logo
6:51 pm - 7:49 am
ORD
-
DTW
11h 58m
1 stop
Spirit Airlines Logo
10:59 pm - 9:22 am
DTW
-
ORD
11h 23m
1 stop
$175Spirit Airlines
Thu, Mar 5 - Sun, Mar 8
United Airlines Logo
5:25 pm - 11:34 pm
PIA
-
DTW
5h 09m
1 stop
United Airlines Logo
5:48 am - 10:03 am
DTW
-
PIA
5h 15m
1 stop
$249United Airlines
Thu, Mar 19 - Sun, Mar 22
United Airlines Logo
1:32 pm - 6:22 pm
BMI
-
DTW
3h 50m
1 stop
United Airlines Logo
8:50 am - 12:50 pm
DTW
-
BMI
5h 00m
1 stop
$249United Airlines
Fri, Jun 5 - Sat, Jun 6
American Airlines Logo
6:00 am - 12:32 pm
MLI
-
DTW
5h 32m
1 stop
American Airlines Logo
6:05 am - 12:11 pm
DTW
-
MLI
7h 06m
1 stop
$274American Airlines
Thu, Mar 5 - Sun, Mar 8
American Airlines Logo
7:09 pm - 12:31 am
MLI
-
DTW
4h 22m
1 stop
American Airlines Logo
12:33 pm - 6:07 pm
DTW
-
MLI
6h 34m
1 stop
$284American Airlines
Thu, Apr 2 - Tue, Apr 7

Delta flights from Illinois to Detroit

Our best Delta deals on Illinois to Detroit flight tickets
Delta
Apr 3
MDW1:10 pmChicago Midway
1h 07m
DTW3:17 pmDetroit Metropolitan Wayne County
Apr 5
DTW8:30 amDetroit Metropolitan Wayne County
1h 23m
MDW8:53 amChicago Midway
$201
Delta
Mar 11
MDW9:35 amChicago Midway
1h 08m
DTW11:43 amDetroit Metropolitan Wayne County
Mar 18
DTW5:40 pmDetroit Metropolitan Wayne County
1h 14m
MDW5:54 pmChicago Midway
$231
Delta
Mar 5
MDW1:29 pmChicago Midway
1h 10m
DTW3:39 pmDetroit Metropolitan Wayne County
Mar 9
DTW12:15 pmDetroit Metropolitan Wayne County
1h 14m
MDW12:29 pmChicago Midway
$259

United Airlines flights from Illinois to Detroit

Our best United Airlines deals on Illinois to Detroit flight tickets
United Airlines
Mar 19
PIA5:25 pmGreater Peoria
5h 09m
1 stop
DTW11:34 pmDetroit Metropolitan Wayne County
Mar 22
DTW5:48 amDetroit Metropolitan Wayne County
5h 15m
1 stop
PIA10:03 amGreater Peoria
$249
United Airlines
Mar 2
MLI5:22 pmMoline Quad-City
5h 22m
1 stop
DTW11:44 pmDetroit Metropolitan Wayne County
Mar 9
DTW5:48 amDetroit Metropolitan Wayne County
5h 21m
1 stop
MLI10:09 amMoline Quad-City
$254
United Airlines
Feb 25
PIA5:45 pmGreater Peoria
3h 24m
1 stop
DTW10:09 pmDetroit Metropolitan Wayne County
Mar 1
DTW9:10 amDetroit Metropolitan Wayne County
6h 00m
1 stop
PIA2:10 pmGreater Peoria
$259

momondo 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, momondo users made 832,500 searches. Data last updated February 13, 2026.
Use the filters below to find and compare flights from Illinois to Detroit that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

Wed 3/4

8:17 pm-8:07 am

1 stop10h 50m

Detroit Metropolitan Wayne County

Mon 3/9

9:02 am-1:19 pm

1 stop5h 17m

$138

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

Wed 3/4

8:17 pm-8:07 am

1 stop10h 50m

Detroit Metropolitan Wayne County

Tue 3/10

5:07 pm-10:37 am

1 stop18h 30m

$141

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

Wed 3/4

8:17 pm-8:07 am

1 stop10h 50m

Detroit Metropolitan Wayne County

Tue 3/10

8:52 pm-10:37 am

2 stops14h 45m

$166

ChicagoDetroit

MDW - DTW

MDWDTW

Chicago Midway

Thu 3/5

7:30 am-3:57 pm

1 stop7h 27m

Detroit Metropolitan Wayne County

Mon 3/9

10:59 pm-1:02 pm

1 stop15h 03m

$170

ChicagoDetroit

ORD - DTW

ORDDTW

Chicago O'Hare Intl

Sat 2/28

6:51 pm-7:49 am

1 stop11h 58m

Detroit Metropolitan Wayne County

Wed 3/4

2:35 pm-11:47 pm

2 stops10h 12m

$173

ChicagoDetroit

ORD - DTW

ORDDTW

Chicago O'Hare Intl

Thu 3/5

6:51 pm-7:49 am

1 stop11h 58m

Detroit Metropolitan Wayne County

Sun 3/8

10:59 pm-9:22 am

1 stop11h 23m

$175

PeoriaDetroit

PIA - DTW

PIADTW

Greater Peoria

Thu 3/19

5:25 pm-11:34 pm

1 stop5h 09m

Detroit Metropolitan Wayne County

Sun 3/22

5:48 am-10:03 am

1 stop5h 15m

$249

BloomingtonDetroit

BMI - DTW

BMIDTW

Bloomington-Normal

Fri 6/5

1:32 pm-6:22 pm

1 stop3h 50m

Detroit Metropolitan Wayne County

Sat 6/6

8:50 am-12:50 pm

1 stop5h 00m

$249

MolineDetroit

MLI - DTW

MLIDTW

Moline Quad-City

Thu 3/5

6:00 am-12:32 pm

1 stop5h 32m

Detroit Metropolitan Wayne County

Sun 3/8

6:05 am-12:11 pm

1 stop7h 06m

$274

MolineDetroit

MLI - DTW

MLIDTW

Moline Quad-City

Thu 4/2

7:09 pm-12:31 am

1 stop4h 22m

Detroit Metropolitan Wayne County

Tue 4/7

12:33 pm-6:07 pm

1 stop6h 34m

$284

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Detroit from

How to get the cheapest flight ticket from Illinois to Detroit

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 Detroit?

The cheapest month to fly to Detroit from Illinois is in May. Flight prices, which tend to average around $201, are often lower during this time because this is during the off-season. If you’re not able to fly to Detroit in May, then October is your next best option. Flight prices from Illinois to Detroit during October average around $229.

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

On average, the least expensive day to fly to Detroit from Illinois is on a Friday. momondo users have found tickets for Friday departures for as low as $367. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from Illinois to Detroit for around $635.

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

In the morning is the cheapest time of day to fly from Illinois to Detroit when you can find flight prices for as low as $420. Flying to Detroit in the morning is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $688 on average. Flights to Detroit from Illinois at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest Illinois to Detroit flight route?

Fly from Chicago O'Hare Intl to Detroit Metropolitan Wayne County for the best Illinois - Detroit flight prices

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

You are more likely to see cheaper flights to Detroit from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Detroit for around $287 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Detroit from Illinois for as low as $151 on momondo.

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

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

Cheap Illinois to Detroit flight deals and tips

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

Best Price Found

$157

Fastest flight time

1h 05m

Direct flights

Every day

Airports in Detroit

1 airport
The best one-way flight to Detroit from Illinois in the past 72 hours is $157. The best round-trip flight deal from Illinois to Detroit found on momondo in the last 72 hours is $318.
The fastest flight from Illinois to Detroit takes 1h 05m
Direct flights go from Illinois to Detroit every day.
There is 1 airport in Detroit. From Illinois there are direct flights to Detroit Metropolitan Wayne County (DTW).
  • When did momondo last update prices for flights from Illinois to Detroit?

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

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

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Illinois to Detroit.

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

    The required travel and health documents for your Detroit 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 Detroit. 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 Illinois to Detroit?

Best airlines flying from Illinois to Detroit

Compare and see reviews for airlines that fly from Illinois to Detroit with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $91Free CancellationRating
7.9
8,186 reviews
Search Delta flights
SouthwestPriceFrom $97Free CancellationRating
8.0
4,283 reviews
Search Southwest flights
United AirlinesPriceFrom $100Free CancellationRating
7.4
9,283 reviews
Search United Airlines flights
American AirlinesPriceFrom $112Free CancellationRating
7.2
11,275 reviews
Search American Airlines flights
FrontierPriceFrom $144Free CancellationRating
5.7
3,052 reviews
Search Frontier flights

Traveling to a place near Detroit?

Book flights to Detroit if you plan to visit one of these locations
Roseville
Port Huron

Why use momondo?

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

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 Detroit from Illinois.

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

All flight searches from Illinois to Detroit on momondo can be filtered to show those which offer flexible booking policies.

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

Once you have performed a search for Illinois to Detroit flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Of course. momondo tracks the price of Illinois to Detroit flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Detroit trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sun 3/15
Sun 3/22

Find better results for your trip to the United States