$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 8/14. 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
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Cheap Flights from Detroit to Illinois

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Chicago
Chicagononstop$152
Moline
Moline1 stop$289
Peoria
Peoria1 stop$289
Bloomington
Bloomington1 stop$289
Champaign
Champaign1 stop$343
Springfield
Springfield1 stop$545
St. Louis
St. Louis1 stop$121
Chicago
Chicagononstop$152
Moline
Moline1 stop$289
Peoria
Peoria1 stop$289
Bloomington
Bloomington1 stop$289
Champaign
Champaign1 stop$343
Springfield
Springfield1 stop$545
St. Louis
St. Louis1 stop$121

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

Fri, Aug 14 - Wed, Aug 19
Frontier Logo
5:38 pm - 8:57 am
DTW
-
STL
16h 19m
1 stop
Frontier Logo
5:33 pm - 12:42 am
STL
-
DTW
6h 09m
1 stop
$121Frontier
Fri, Aug 14 - Thu, Aug 20
Frontier Logo
5:38 pm - 8:57 am
DTW
-
STL
16h 19m
1 stop
Frontier Logo
6:33 pm - 12:42 am
STL
-
DTW
5h 09m
1 stop
$123Frontier
Wed, May 27 - Wed, Jun 3
Southwest Logo
1:40 pm - 1:50 pm
DTW
-
MDW
1h 10mnonstop
Southwest Logo
10:10 am - 6:20 pm
MDW
-
DTW
7h 10m
2 stops
$152Southwest
Wed, Jun 17 - Wed, Jun 24
Southwest Logo
8:10 pm - 11:10 pm
DTW
-
MDW
4h 00m
1 stop
Southwest Logo
5:20 pm - 10:25 pm
MDW
-
DTW
4h 05m
1 stop
$157Southwest
Tue, May 26 - Thu, May 28
Delta Logo
12:35 pm - 1:01 pm
DTW
-
ORD
1h 26mnonstop
Delta Logo
7:00 am - 9:29 am
ORD
-
DTW
1h 29mnonstop
$164Delta
Tue, May 26 - Thu, May 28
Delta Logo
6:19 pm - 6:33 pm
DTW
-
MDW
1h 14mnonstop
Delta Logo
1:22 pm - 3:35 pm
MDW
-
DTW
1h 13mnonstop
$164Delta
Tue, Jun 23 - Wed, Jun 24
American Airlines Logo
6:45 am - 7:30 am
DTW
-
ORD
1h 45mnonstop
American Airlines Logo
6:56 pm - 9:34 pm
ORD
-
DTW
1h 38mnonstop
$172American Airlines
Thu, Jun 4 - Sat, Jun 6
United Airlines Logo
7:05 am - 9:59 am
DTW
-
MLI
3h 54m
1 stop
United Airlines Logo
10:40 am - 5:39 pm
MLI
-
DTW
5h 59m
1 stop
$289United Airlines
Thu, May 21 - Tue, May 26
American Airlines Logo
8:55 pm - 11:59 pm
DTW
-
PIA
4h 04m
1 stop
American Airlines Logo
6:58 pm - 11:37 pm
PIA
-
DTW
3h 39m
1 stop
$289American Airlines
Thu, May 28 - Thu, Jun 4
United Airlines Logo
6:00 am - 1:56 pm
DTW
-
MLI
8h 56m
2 stops
United Airlines Logo
2:31 pm - 8:22 pm
MLI
-
DTW
4h 51m
1 stop
$294United Airlines
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.

How much is a round-trip flight from Detroit Metropolitan Wayne County Airport to Illinois?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Detroit Metropolitan Wayne County Airport to Illinois departing in May.

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 $191 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 $263.

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

The average price for all round-trip flights from Detroit Metropolitan Wayne County Airport to Illinois depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Illinois is generally in the morning, when round-trip flights cost $517 on average. Morning departures are around 37% 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 $902.

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 $317, 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 $45 (return) on average. On the other hand, the most expensive months are March and December, when the average cost of round-trip tickets is $111 and $94 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 Friday 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 58% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 20 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$63
Best time to beat the crowds but there is an average 25% increase in price.
Most popular time to fly and prices are also 33% 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.

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 $237 one-way - $446 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.
7.9
SouthwestOverall score based on 4305 reviews
7.5Entertainment
7.0Food
8.0Comfort
8.1Boarding
8.6Crew
Airline reviews

Truly terrible. Will never willingly fly southwest again. Seats are worse than before they switched to assigned seating. One flight attendant was the opposite of helpful (rude, unhelpful, dismissive, and as my stranger seatmate said unprompted: a total prick). This caused me, 15 minutes into the flight, to book an alternate return flight home on a competing airline (first class 1.2k purchase instead of my existing planned flight) just so I would not have to ever be on that aircraft, with that terrible service person, with those horrific seats ever again.

2.0 MediocreJoshua, May 2026
TPA - LAS
Read more Southwest reviews

Truly terrible. Will never willingly fly southwest again. Seats are worse than before they switched to assigned seating. One flight attendant was the opposite of helpful (rude, unhelpful, dismissive, and as my stranger seatmate said unprompted: a total prick). This caused me, 15 minutes into the flight, to book an alternate return flight home on a competing airline (first class 1.2k purchase instead of my existing planned flight) just so I would not have to ever be on that aircraft, with that terrible service person, with those horrific seats ever again.

Not having a five hour delay with little notice! The crew was very kind, though, and just as tired as we passengers were. The flight didn't depart until nearly 1 am...and no reason was ever given.

The entire experience from boarding to landing was amazing! The crew were very friendly. Will definitely be back.

no service at all due to turbulence. they should've at least given us snacks, there were only 10 people on the entire flight.

First time I've had to use the disabled accommodations. And I could not have had a better experience with Southwest, i was having trouble getting from one terminal to another due to my heart failure. And the next thing I know a Southwest agent had made sure. I had a wheelchair at all my flights. Can't thank them enough.

Delayed flight, lack of information, boarding process is a mess as is the carryon luggage causing issues when leaving the plane….just a poor experience.

Comfortable. Easy. No problems. Just wish they had gf options for snacks.

The crew was very kind and made going to Hawaii relaxing and fun to look forward to! Thank you Southwest for a pleasant flight!

This leg was much better, but we did have to have a 3 hour lay o er after coming from a very exhausting hiccup with our flight from BNA to Den

We waited in the airplane for over 45 min for a southwest employee to make the flight. This cause over half the plane to miss their connecting flight in Denver. When we confronted the desk upon arrival, they told us the only flight they had was the next day leaving at 8:50 pm!!! Or they offered to get us to Burbank or LA, but after that we were on our own to get back to Santa Barbara. I paid for a flight from sba to bna bna to sba. My re entry into mom mode has been 💯 rough because of southwest mistake with my flight. And now I’m leaving to Reno tomorrow for a vballl tournament and just discovered that my leg in Vegas has me and my 3 kids on a stand by flight even though I had booked these ticket last year November!! Do better southwest!

Much better than Latam, the worse airline company ever. I hope I don't have the need to fly Latam ever in my life again.

Seats in Delta Main are unbelievably close to the seat in front of. Hard to get a backpack under the seat.

The agent at check in and at the gate were less than thrilled to be at work. I'm not a fan of Kayak's placement on the plane. I got put in the middle seat and none of my preferences were used.

In ATL they have two sets of departure screens. Follow what is on your airline's departure board - the ATL Airport Authority departure board had completely incorrect details about the gate assignment for my flight, which would have made me miss boarding.

Flight was delayed it was hot while sitting on the plane, one engine was working on the plane until they had to do some jimmy rigging down the runway in order for the other engine to charge up. It was ridiculous

The flight was very good and the staff was very friendly and helpful!

Everything went smoothly, although the usual gripes about airline travel were still present: the boarding process is inefficient, the snack selection is limited, and so on. Since there was extra space on the flight, the gate agent rearranged many people's seats to put people on the aisles and windows, leaving the middle seats empty, as much as possible, which was pretty great.

Boarding was good. The flight was on time ( arrival was 20 minutes early). Inflight service was average ( US airlines have not mastered the skills of customer service yet). The food was mediocre. “ breakfast “ was downright awful and insulting. It was a piece of dough with mon descript filling that was supposed to be cheese omelette).

Miserable. This entire round trip was miserable. I booked evening flights to and from Detroit on consecutive days that should have had me at my destination by 10:30. Instead I arrived after 3am on my flight to Detroit and after midnight on my return. Multiple unforced errors like awaiting bags to get put on the plane for almost an hour in Detroit and a 20 minute delay to pull up to the gate in Atlanta has me rethinking my assumption that delta is the best and most reliable airline

The flight was flying with 30% capacity. The flight my seat from preferred seating to back of the seat. Even though i can understand that this was to balance the flight weight. The flight attendance decided to do the serving near my seat and in the middle , their noices woke me up from sleep , when i realized that the service has ended and when they were going back asked for a coffee, for which they answered they have completed teh service in my location. That really upset me as they woke me up and also rejected the coffee i asked. I ended up landing with a headache, thanks to the crew that screwed up my travel

O’hsre taxi and deboarding took 40 minutes. Needed 20 minutes extra time between connecting flights to avoid running through terminal.

Standard flight with a drinks and a snack- overall very quick flight. The flight attendants were very strict, bordered on rude.

Delayed - weather wasn't bad at either end. Also sat on tarmac in ORD.

boarded early to only find out that flight would sit at gate for 45 min to an hour. Landed in chicago and sat on runway for over an hour before got to gate. Total delay was extensive for a 45 min flight door to door.

The flight was significantly delayed. The inbound flight from EWR was delayed departing because of mechanical problems. My original departure from CLT was 5:28 pm but due to the delay of the inbound flight, after arrival, deplaning, cleaning, boarding, we did not push back from the gate until 9:00 pm. Once in the air, the flight was smooth and what was originally supposed to be an arrival in ORD at 7:30 pm local time turned out to be 9:35 pm.

The flight I was supposed to be on was supposed to take off at 1:50 from State College. It was delayed over and over and over again until somehow I had to rebook on a flight that was supposed to have left State College at 8 am that morning but didn't end up taking off until almost 6 pm. Not only was this completely unacceptable, the "token from United" was a 15 dollar meal voucher that has to be used by today. I would personally like some miles added to my account for this inconvenience. I was in transit for 8 hours from the time I arrive at State College Aiport to when I got home. I was supposed to be home at 3 pm and I returned at 8 pm. Unacceptable. I have not been on an on Time united flight in nearly 5 years.

newer aircraft, ability to connect my headset via blue tooth for entertainment.

Very comfortable flight, snacks and drinks were good, good communication from crew. Could have used a little more information on timing of boarding for group 5

Great flight. Got to watch a movie. Smooth flight and early arrival at ORD.

It was better than excellent. The staff in Mason City were great. The young woman that pushed my wheelchair did more than could be expected of her. She came from India 17 years ago. I don't remember her name.

It was good, the staff was great, and the food, was as usual, tea and biscuit. Bathroom was clean, and the plane was clean as well.

Very good I can’t complain one bit. Thank you American Airlines for making my flight enjoyable and safe!

The staff and service on American Airlines were truly outstanding. I had requested wheelchair assistance for my mother due to her knee issues, and the team went above and beyond every step of the way—from boarding in Boston to our arrival in Chicago. Their care, professionalism, and attentiveness made the entire experience smooth and stress-free. I’m very grateful for the support they provided.

The new planes (American Eagle) are beautiful and especially comfortable. The flight attendants are consistently professional and courteous. And, while it may seem inconsequential, the new liquid tube of coffee creamer—in contrast to the powdered coffee creamer—makes all the difference in a cup of coffee.

Boarding was quick and efficient. We arrived at our destination early.

I'm not sure American is capable of on-time arrivals and departures. When you land at ORD, you almost always get held on the tarmac because your gate is still occupied. I may have missed my connection, but that ended up up being significantly delayed as well. Once again, I finally got home well after midnight.

Crew at the gate was very crabby and not at all polite. The plane was very hot the entire flight. And the seat cushion was very worn out.

The staff are very, very professional. It's what flying should feel like.

Flight was delayed half hour before boarding, but when I checked flight aware the plane that would Pick us up had a delay of more than an hour. AA should let us know in advance to avoid waiting several hours in the airport

Delays with no explanation. It could have been handled better.

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

Information on your arrival and departure airports