$64 Find Cheap Flights from Detroit to Illinois

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Detroit to Illinois departing on 2/25. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Illinois

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Detroit to Illinois, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Detroit to Illinois, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Detroit to Illinois

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Chicago
Chicago1 stop$132
Moline
Moline1 stop$249
Peoria
Peoria1 stop$249
Bloomington
Bloomington1 stop$249
Champaign
Champaign1 stop$298
Springfield
Springfield1 stop$499
St. Louis
St. Louis1 stop$138
Chicago
Chicago1 stop$132
Moline
Moline1 stop$249
Peoria
Peoria1 stop$249
Bloomington
Bloomington1 stop$249
Champaign
Champaign1 stop$298
Springfield
Springfield1 stop$499
St. Louis
St. Louis1 stop$138

Book Cheap Detroit to Illinois Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Detroit to Illinois that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Detroit to Illinois

Tue, Mar 3 - Tue, Mar 10
Multiple Airlines Logo
10:59 pm - 12:40 am
DTW
-
ORD
26h 41m
1 stop
Multiple Airlines Logo
12:05 pm - 12:09 am
ORD
-
DTW
11h 04m
1 stop
$132Multiple Airlines
Tue, Feb 24 - Sat, Feb 28
Spirit Airlines Logo
5:09 am - 12:40 am
DTW
-
ORD
20h 31m
1 stop
Spirit Airlines Logo
6:51 pm - 7:49 am
ORD
-
DTW
11h 58m
1 stop
$133Spirit Airlines
Thu, Mar 5 - Mon, Mar 9
Frontier Logo
5:33 pm - 11:49 am
DTW
-
STL
19h 16m
1 stop
Frontier Logo
2:09 pm - 8:07 am
STL
-
DTW
16h 58m
1 stop
$138Frontier
Fri, Feb 27 - Sun, Mar 1
Spirit Airlines Logo
10:59 pm - 9:22 am
DTW
-
ORD
11h 23m
1 stop
Spirit Airlines Logo
6:51 pm - 7:49 am
ORD
-
DTW
11h 58m
1 stop
$140Spirit Airlines
Mon, Mar 9 - Wed, Mar 11
Frontier Logo
9:02 am - 1:19 pm
DTW
-
STL
5h 17m
1 stop
Frontier Logo
11:32 am - 8:07 am
STL
-
DTW
19h 35m
1 stop
$143Frontier
Mon, Mar 9 - Mon, Mar 9
American Airlines Logo
5:45 am - 8:51 am
DTW
-
STL
4h 06m
1 stop
American Airlines Logo
6:57 pm - 12:36 am
STL
-
DTW
4h 39m
1 stop
$159American Airlines
Wed, Mar 18 - Mon, Mar 23
United Airlines Logo
9:00 am - 12:43 pm
DTW
-
PIA
4h 43m
1 stop
United Airlines Logo
5:25 pm - 11:34 pm
PIA
-
DTW
5h 09m
1 stop
$249United Airlines
Wed, Mar 18 - Wed, Mar 25
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 - Sat, Mar 21
American Airlines Logo
6:05 am - 12:11 pm
DTW
-
MLI
7h 06m
1 stop
American Airlines Logo
6:00 am - 12:32 pm
MLI
-
DTW
5h 32m
1 stop
$275American Airlines
Tue, May 26 - Thu, May 28
Delta Logo
7:30 am - 12:56 pm
DTW
-
EVV
6h 26m
1 stop
Delta Logo
5:57 pm - 12:58 am
EVV
-
DTW
6h 01m
1 stop
$495Delta
Booking Insights

KAYAK's insights & trends for Detroit to Illinois flights

Get data-powered insights and trends into flights from Detroit to Illinois to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest Detroit Metropolitan Wayne County Airport to Illinois flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Illinois from Detroit Metropolitan Wayne County Airport found in the last 72 hours was to Chicago, at $199 round-trip. The most popular route is from Detroit Metropolitan Wayne County Airport (DTW) to Chicago O'Hare Intl Airport (ORD), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $266.

Can I save money by flying with a layover from Detroit Metropolitan Wayne County Airport to Illinois?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $284, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from Detroit Metropolitan Wayne County Airport to Illinois?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Detroit Metropolitan Wayne County Airport to Illinois, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Detroit Metropolitan Wayne County Airport to Illinois is September, when tickets cost $147 (return) on average. On the other hand, the most expensive months are January and July, when the average cost of round-trip tickets is $512 and $282 respectively.

What’s the cheapest day of the week to fly from Detroit to Illinois?

The average price of all round-trip flights from Detroit Metropolitan Wayne County Airport to Illinois clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Illinois on a Thursday and more expensive on a Monday. On your return trip to Detroit, you should consider flying back on a Friday, and avoid Mondays for better deals.

How far in advance should I book a flight from Detroit Metropolitan Wayne County Airport to Illinois?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Detroit Metropolitan Wayne County Airport to Illinois, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Detroit Metropolitan Wayne County Airport to Illinois, you should book around 4 weeks before departure, which saves you about 65% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 20 weeks before departure.

Good to know

Low seasonDecember
Cheapest flight$64
Best time to beat the crowds but there is an average 21% increase in price.
Most popular time to fly and prices are also 7% lower on average.
Flight from Detroit to St. Louis

FAQs - booking Illinois flights

  • How does KAYAK find such low prices on flights from Detroit to Illinois?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Detroit to Illinois.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Detroit to Illinois?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Detroit to Illinois is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Detroit to Illinois?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Detroit to Illinois with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Detroit to Illinois?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Detroit to Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Illinois?

    The cheapest time of day to fly to Illinois is generally in the morning, when round-trip flights cost $511 on average. Morning departures are around 40% cheaper than evening flights, on average. The most expensive time of day to fly to Illinois is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $859.

Top tips for finding cheap flights to Illinois

  • Looking for a cheap flight? 25% of our users found tickets from Detroit to the following destinations at these prices or less: Chicago $239 one-way - $417 round-trip

Reviews of the top 4 airlines serving from Detroit to Illinois

 
See real verified KAYAK customer reviews for airlines flying from Detroit to Illinois. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Detroit to Illinois? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4275 reviews
8.6Crew
7.0Food
7.5Entertainment
8.0Comfort
8.1Boarding
Airline reviews

I appreciate the staff who allowed me to board though I arrived a little late! Regarding the assigned seating, I had booked my flight before this change and wasn't aware of the change at the time, and so I didn't select a seat at booking as I didn't realize it was relevant. Better communication about the change would have been helpful for preparing.

10.0 ExcellentMeghan, Feb 2026
MCO - DEN
Read more Southwest reviews

I appreciate the staff who allowed me to board though I arrived a little late! Regarding the assigned seating, I had booked my flight before this change and wasn't aware of the change at the time, and so I didn't select a seat at booking as I didn't realize it was relevant. Better communication about the change would have been helpful for preparing.

Flight attendants very hospitable and friendly. Pilot flew a smooth take off and landing.

Paid for premium extra leg room but the bin space for rows 1-3 had to go in rows 4-6 and 4-6 had to go to 7-9 because flight attendants have snacks and their luggage upfront. So we pay extra to have to fight thru traffic to get our bags. Only 2nd day of new seating so hope they fix this.

WIFI was great. My selection for seating is an aisle, but during my trip, I never had an aisle seat. If we can get that corrected, I will be thrilled. No snack or drink on this flight.

WIFI was great. My selection for seating is an aisle, but during my trip, I never had an aisle seat. If we can get that corrected, I will be thrilled.

The wifi on the plane is great. The only issue that I have is that I prefer an aisle seat and on my trips this week, I was either in the middle or window. If we can work to secure aisle seating, I will be thrilled. Nice trip.

All good except once again bags took an hour at Midway Airport Happens all the time. Ridiculous

Everything went smoothly and we even arrived a little bit early.

Great vacation. Can't wait till next year for another one.

Great flight but super high price. Glad it was a business trip and not personal

Comfort seating was on the tight side. Maybe it was a smaller plane(?)

I didn't take this flight. I changed the flight. Why am I getting surveys and notifications on flights that I change. Seems like a defect with Kayak.

Very large passenger too space from my own seat. Arm board couldn’t be lowered because of his size. It wads very uncomfortable trip, as the flight was full couldn’t move anywhere having back pain because of the position in which I was the entire flight.

DTW line is too long. The flights from DTW to BWI are always delayed for unknown reasons.

Flight was delayed several times. At one point, they "pulled back" 15 minutes from the delayed boarding and sent a text saying we would board sooner than previously advised. The flight then was delayed again. And when we boarded, there was an unspecified technical issue which had us waiting in the plane for about an hour.

Delta is a good airline. I've never had an issue with Delta. I'll continue to fly with them until they show me that I shouldn't.

Very good flight crew and very nice people staff were incredible especially the gate agent

Flight delays both to Detroits and return flight . The flight to Detroit was associated with mechanical difficulty

Great. I had to modify a flight. That was easy and free. Thank You

Left on time, a bit delayed due to headwinds most of the trip.

United Airlines is my preferred airlines and I am thankful for Gary who also help support me on the phone to switch my flight literally last min.

Seated dude next to me even though lots of empty rows. But main thing was we sat on the tarmac after landing for 30 minutes because of, in the words of the dude who sat next to me, “operational incompetence”. We got changing directions about where to pick up gate checked bags. Pilot and flight attendant were awesome though.

It was a pretty standard flight... until the almost hour and a half spent on the taxi way. I get that the weather has been poor but the delay had nothing to do with the weather and more to do with a plane with several issues tying up the gate. I get that that happens from time to time but this has been EVERY flight I've been on for the past 5 years and I fly 3 to 5 times a year. This isn't just United... it's American, it's Delta. It's an issue with the entire industry. I work for UPS and packages on a cargo plane get better service than people do these days. Anymore I HATE flying.

Perfect flight. Smooth flight. Arrived 20 minutes early at destination. Excellent service.

The flights were on time which was great give. It was holiday travel season and there’d been some weather issues. The only complaint and this is every time with United is the terrible seat design. The head rest is not built for comfort and having my neck bent forward for a cross country trip reminded me while I try not to take United flights as a rule.

Everything was absolutely wonderful from check in to baggage claim. Staff was very professional and sweet. Will definitely recommend United to family and friends.

They did the one thing that really matters - got to Chicago early.

The flight was on time. I generally don’t drink or eat on short flights and the seats were good and the flight attendants were friendly. That’s all I expect

It was nice to have gotten up upgraded to first class with a meal on a three hour flight

Very bad! They kept delaying my flight and wouldn’t do anything about it

We flew in first class. The crew did not offer drinks before the flight took off, but they treated us well during the flight. The food was excellent. There was actually too much food served, but it was nice to have all the options.

Update to handle the delay was very bad, crews no smiles or welcome or thanks. Don’t care attitude

Pilot navigated severe weather/snow storm with skill. Described his intentions clearly

It was a good trip. Flight Attendants were friendly and responsive.

Little warm on the plane and delayed for an hour

So excited very proud first of all I wanna thank kayak all updates very professional and fast alart And amazing cabin crew so nice to me they deserve big salute

The boarding process needs to be fixed. The zone don't work, especially when there is hardly anyone in zones 3, 4,and 5, leaving the majority of the passengers backed up in the aisle, especially because passengers seated near the front are blocking passengers who are seated in the rear of the plane. It would also help if the size of carry on bags was more strictly enforced.

Awful. They won’t help me with anything. I booked on American but they abdicated to Iberia. The ticket was overpriced. Everything negative

I enjoyed the extra leg room compared to other airlines. The first stewards made my daughter’s birthday special by giving her an extra snack. Then the last one coming home from Chicago to Appleton made our night really enjoyable Thanks for making our trip enjoyable

It was good..clean, comfy seat. Friendly warm welcoming crew. Was able to check my cabin luggage at the gate which I was able to pickup in a decent time from baggage claim. The app gave all updates from delays to baggage claim info. Overall smooth flight.

Everything you need to know for your flight from Detroit to Illinois

Information on your arrival and departure airports