Cheap flights from Detroit to Illinois from $38
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 7/31. 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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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 October. Flight prices, which tend to average around $99, 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 October, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $107.
What is the cheapest day to depart on your flight to Illinois?
The cheapest day to depart from Detroit to Illinois is on a Friday when prices can be found for as low as $506. Flights from Detroit to Illinois on a Monday will generally be more expensive and average around $789. 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 evening. Flights from Detroit to Illinois during this time can be as low as $465. Flights at noon are often more expensive with an average ticket price of $932.
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 8 weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $219 when searching 8 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 $115 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.
What is the cheapest airline that flies from Detroit to Illinois?
Spirit Airlines, United Airlines, and Southwest are the most popular carriers operating from Detroit to Illinois
What airlines fly to Illinois?
Delta, American Airlines and Spirit Airlines are the top three most popular airlines that fly to Illinois from Detroit according to our data. Delta is the first choice among our users, with 44% of people opting to fly with this airline when traveling to Illinois. Keep in mind that there are 5 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.
How many flights depart from Detroit to Illinois on average per day?
As of June 2025, 110 flights take off from Detroit and land in Illinois each day. The most common flight departure time for this route is 12:00PM, with 40% of daily flights taking off in the afternoon.
How many flights depart from Detroit to Illinois on average per week?
The number of flights available between Detroit and Illinois is 772 per week as of June 2025. The most frequent departure day is Sun, with 16% of weekly flights leaving on this day.
Cheap Detroit to Illinois flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Detroit to Illinois
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?
There are 6 operators available for flights from Detroit to Illinois as of June 2025.
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?
momondo data reveals that the most frequently booked plane model on the route from Detroit to Illinois is Embraer 175 (Enhanced Winglets), representing 9.76% of all bookings. The subsequent popular models are Boeing 717-200 at 9.37%, Airbus A330-200 at 7.22%, and Boeing 737 MAX 8 at 6.96%.
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 | ||
|---|---|---|---|---|---|
| PriceFrom $38 | Free Cancellation | Rating 6.3 8,060 reviews | |||
| PriceFrom $97 | Free Cancellation | Rating 7.4 8,801 reviews | |||
| PriceFrom $97 | Free Cancellation | Rating 8.0 7,963 reviews | |||
| PriceFrom $97 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $108 | Free Cancellation | Rating 8.0 4,278 reviews |
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.