$70 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 5/23. 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
Chicago1 stop$178
Moline
Moline1 stop$309
Peoria
Peoria1 stop$291
Bloomington
Bloomington1 stop$309
Champaign
Champaign1 stop$328
Springfield
Springfield1 stop$588
St. Louis
St. Louis1 stop$140
Chicago
Chicago1 stop$178
Moline
Moline1 stop$309
Peoria
Peoria1 stop$291
Bloomington
Bloomington1 stop$309
Champaign
Champaign1 stop$328
Springfield
Springfield1 stop$588
St. Louis
St. Louis1 stop$140

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

sáb., may. 9 - mié., may. 13
Frontier Logo
7:55 am - 7:23 pm
DTW
-
STL
12h 28m
1 stop
Frontier Logo
5:27 pm - 12:39 am
STL
-
DTW
6h 12m
1 stop
$140Frontier
mar., abr. 28 - mié., abr. 29
Frontier Logo
12:33 pm - 6:50 am
DTW
-
STL
19h 17m
1 stop
Frontier Logo
8:23 pm - 9:05 am
STL
-
DTW
11h 42m
1 stop
$145Frontier
mar., abr. 21 - mar., abr. 28
Southwest Logo
6:10 am - 3:45 pm
DTW
-
MDW
10h 35m
2 stops
Southwest Logo
8:15 am - 1:00 pm
MDW
-
DTW
3h 45m
1 stop
$196Southwest
sáb., abr. 25 - mar., abr. 28
Southwest Logo
8:35 am - 8:55 am
DTW
-
MDW
1h 20mnonstop
Southwest Logo
1:25 pm - 3:35 pm
MDW
-
DTW
1h 10mnonstop
$197Southwest
mié., may. 13 - sáb., may. 16
United Airlines Logo
9:00 am - 12:57 pm
DTW
-
PIA
4h 57m
1 stop
United Airlines Logo
5:30 pm - 10:13 pm
PIA
-
DTW
3h 43m
1 stop
$291United Airlines
mié., abr. 15 - lun., abr. 20
United Airlines Logo
8:10 pm - 10:57 pm
DTW
-
PIA
3h 47m
1 stop
United Airlines Logo
5:35 pm - 10:17 pm
PIA
-
DTW
3h 42m
1 stop
$300United Airlines
lun., ago. 24 - sáb., sep. 5
American Airlines Logo
3:16 pm - 10:11 pm
DTW
-
MLI
7h 55m
1 stop
American Airlines Logo
7:10 am - 3:16 pm
MLI
-
DTW
7h 06m
1 stop
$309American Airlines
jue., abr. 16 - sáb., abr. 18
American Airlines Logo
6:00 am - 10:46 am
DTW
-
BMI
5h 46m
1 stop
American Airlines Logo
5:00 am - 9:13 am
BMI
-
DTW
3h 13m
1 stop
$309American Airlines
mar., abr. 7 - mar., abr. 14
Delta Logo
5:20 am - 10:39 am
DTW
-
EVV
6h 19m
1 stop
Delta Logo
5:58 pm - 12:44 am
EVV
-
DTW
5h 46m
1 stop
$417Delta
mié., abr. 22 - mié., abr. 22
Delta Logo
5:20 am - 9:24 am
DTW
-
EVV
5h 04m
1 stop
Delta Logo
5:58 pm - 12:44 am
EVV
-
DTW
5h 46m
1 stop
$575Delta
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 $231 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 $248.

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 $510 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 $875.

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 $324, 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 $368 and $287 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 63% 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$70
Best time to beat the crowds but there is an average 28% 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 $242 one-way - $400 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 4329 reviews
7.5Entertainment
8.0Comfort
8.1Boarding
7.0Food
8.6Crew
Airline reviews

Great flight. Good snacks and drinks. Grateful it was free. The flight from Nashville to louisville, i think her name was Tracy (not sure that's right) super awesome, nice and cheerful. She really enjoyed being at work today! She was the person who scanned the boarding pass on flight wn941. She should be recommended for a raise !

10.0 ExcellentGwen, Mar 2026
DAL - BNA
Read more Southwest reviews

Great flight. Good snacks and drinks. Grateful it was free. The flight from Nashville to louisville, i think her name was Tracy (not sure that's right) super awesome, nice and cheerful. She really enjoyed being at work today! She was the person who scanned the boarding pass on flight wn941. She should be recommended for a raise !

I liked it better when you were truer to your roots Am paying more for less fun

Southwest was greaat! The most expensive but the least upsetting for those we were flying to see.

I flew twice this week on Southwest, was delayed over 2 hours both ways. From Pittsburgh to Chicago it was due to weather but the gate agents, pilot etc were great at updating everyone. Today from Midway to Pittsburgh the plane had come from an international location, kept getting delayed, no information was given until we were delayed for the third time. It was ridiculous, whoever scheduled that plane to fly to Pittsburgh after didn’t consider a lot of things.

Boarding was easy. The seats are small and fairly uncomfortable

I was supposed to be on a later flight. When I showed up at the gate, the woman working there was extremely helpful getting moved up to this earlier flight.

We had a 5 hour delay on the tarmac in Baltimore

Long layover between flights to Long Island from BWI - need better coordination between flights

I elected to pay for the upgrades and found very little difference

The new seating arrangement is so over priced for what you get.

The cabin temperature was nice and cool. The wifi was not working.

Flight late, the waited for a long time for “personal” to arrive at gate to dock the plane in Rochester. So annoying. This flight was expected, why aren’t personel available for the jet bridge?

As previously noted, this flight was great: departure was timely, the crew was friendly and attentive, and wifi connectivity was seamless. In particular, I appreciated that the flight attendant just told me to stow the laptop right before takeoff/landing, and trusted me to do so (which I did!).

Kayak botched up the booking, i had to call delta and fix. In the process Delta failed to honor my comfort plus seat assignment that i had previously.

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

There was an unruly family behind us that made the short flight miserable!!! The cabin crew did nothing to contain it.

2+hrs delay without any reason provided and a cramped flight

Flight was delayed and no reasons provided. After the passengers were boarded, the crew made announcement that the captain has jot arrived and he would take another 15 mins. All passengers patiently sat until the captain came and started. Terrible experience!

Flight delay was frustrating, also you cannot checkin online without delta app, web browser check-in throw errors

Economy plus was so cramped I could not use my laptop. It was beyond bad.

Wonderful. Quick boarding. Early departure and we arrived 30 minutes early at our destination. Unfortunately, when you arrive early, there is still a departing aircraft at our gate. We had to park for 30 minutes until the gate was clear. So our early arrival was not really early at the gate. Otherwise it was a quick and smooth flight. Appreciated the efficiency.

Crew was great (professional, attentive, prompt). Snacks for 4 hrs flight is deplorable.

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.

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

Jill was the flight attendant in first class she was fabulous!! Best flight attendant I have had in years.!! And I fly every other week. Other can learn from her!!

As a first class customer, there was no power the entire flight which limited my ability to work. I find this unacceptable. The first 11 rows on the left side of the plan were out. I was only offered the option to charge my phone which was not the issue because my laptop was out of power. I asked if there was anything that can be done for me, and the answer was, "no". I was not offered any type of compensation for this AA problem which caused me unnecessary stress due to inability to address business issues on an already challenging travel day. Flight attendants tried to reset the power once but that was the extent of their support. Very disappointing for the lack of expected services on a flight. Please contact me with customer focused response to this complaint.

There was no inflight service. Once we landed we were delayed to find a gate for an hour and a half which was 1/2 the total time in the air.

The chicken wrap was tiny ($13 for what looked like a 1/3 of a normal wrap?) and disgusting.

It was good experience this time. The flight was on time.

There was a delay with the plan which cause the flight to leave later and once arrived in Chicago there was another delay and some passengers missed their connecting flights

The gate agent had a really bad attitude and refused to help me get on the standby list. She just handed me a card and said I needed to call a number. I asked her to help with the AA app on my phone and she just shrugged and said she didnt know. After a few phone calls, I eventually just went to a different gate agent on the other side of the terminal and got the help I needed.

Overall, my last three trips on American Airlines have all been either delayed or "rescheduled" due to mechanical issues. At least on delay caused me to miss two possible connecting flights each later than the first. My last option for my last connection required the assistance of the onsite service desk (O'Hare Airport). The wait time for the service desk was such that it jeopardized getting booked on the last connecting flight available for the night. Suffice it to say, my latest experiences with American Airlines have caused me extensive loss of productive business and personal time and can therefore be classified as significantly less than satisfactory.

Waiting for gate in RDU for more than 20mins is crazy.

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

Information on your arrival and departure airports