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Cheap flights from Michigan to Illinois from $28

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Michigan to Illinois departing on 8/21. 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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0 bags

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Cheap round-trip flights

Spirit Airlines Logo
1:00 pm - 1:32 pmDTW-STL
1h 32mnonstop
Spirit Airlines Logo
2:30 pm - 5:00 pmSTL-DTW
1h 30mnonstop
$58Spirit Airlines
Find Deal
Fri, Aug 22 - Sun, Aug 24
Spirit Airlines Logo
1:00 pm - 1:32 pmDTW-STL
1h 32mnonstop
Spirit Airlines Logo
2:30 pm - 5:00 pmSTL-DTW
1h 30mnonstop
$62Spirit Airlines
Find Deal
Thu, Aug 21 - Mon, Aug 25
American Airlines Logo
6:05 am - 6:17 amGRR-ORD
1h 12mnonstop
American Airlines Logo
9:45 am - 11:41 amORD-GRR
0h 56mnonstop
$91American Airlines
Find Deal
Wed, Aug 20 - Sat, Aug 23
American Airlines Logo
7:10 pm - 8:32 pmORD-STL
1h 22mnonstop
American Airlines Logo
2:01 pm - 3:28 pmSTL-ORD
1h 27mnonstop
$91American Airlines
Find Deal
Sat, Sep 20 - Sat, Oct 4
Delta Logo
7:45 am - 8:04 amDTW-ORD
1h 19mnonstop
Delta Logo
1:22 pm - 3:46 pmORD-DTW
1h 24mnonstop
$91Delta
Find Deal
Wed, Sep 10 - Tue, Sep 16
Southwest Logo
6:35 am - 7:45 amMDW-STL
1h 10mnonstop
Southwest Logo
1:55 pm - 3:05 pmSTL-MDW
1h 10mnonstop
$91Southwest
Find Deal
Sat, Sep 20 - Sat, Oct 4
Southwest Logo
2:30 pm - 2:40 pmDTW-MDW
1h 10mnonstop
Southwest Logo
8:20 pm - 10:30 pmMDW-DTW
1h 10mnonstop
$91Southwest
Find Deal
Wed, Sep 10 - Tue, Sep 16
United Airlines Logo
2:20 pm - 3:44 pmORD-STL
1h 24mnonstop
United Airlines Logo
7:04 pm - 8:36 pmSTL-ORD
1h 32mnonstop
$94United Airlines
Find Deal
Sat, Sep 6 - Mon, Sep 8
Delta Logo
8:00 pm - 8:23 pmDTW-ORD
1h 23mnonstop
Delta Logo
7:15 am - 9:30 amORD-DTW
1h 15mnonstop
$94Delta
Find Deal
Sat, Aug 23 - Mon, Aug 25
United Airlines Logo
6:39 pm - 6:50 pmGRR-ORD
1h 11mnonstop
United Airlines Logo
10:35 am - 12:47 pmORD-GRR
1h 12mnonstop
$97United Airlines
Find Deal
Thu, Aug 28 - Thu, Sep 4

American Airlines flights from Michigan to Illinois

Our best American Airlines deals on Michigan to Illinois flight tickets
American Airlines
Aug 20
GRR6:05 amGrand Rapids Gerald R. Ford Intl
1h 12m
ORD6:17 amChicago O'Hare Intl
Aug 23
ORD9:45 amChicago O'Hare Intl
0h 56m
GRR11:41 amGrand Rapids Gerald R. Ford Intl
$91
Find similar
American Airlines
Oct 4
GRR7:25 pmGrand Rapids Gerald R. Ford Intl
1h 14m
ORD7:39 pmChicago O'Hare Intl
Nov 3
ORD7:09 amChicago O'Hare Intl
1h 00m
GRR9:09 amGrand Rapids Gerald R. Ford Intl
$94
Find similar
American Airlines
Aug 23
ORD7:30 pmChicago O'Hare Intl
1h 20m
STL8:50 pmLambert-St Louis
Aug 25
STL6:00 amLambert-St Louis
1h 24m
ORD7:24 amChicago O'Hare Intl
$95
Find similar

Delta flights from Michigan to Illinois

Our best Delta deals on Michigan to Illinois flight tickets
Delta
Sep 10
DTW7:45 amDetroit Metropolitan Wayne County
1h 19m
ORD8:04 amChicago O'Hare Intl
Sep 16
ORD1:22 pmChicago O'Hare Intl
1h 24m
DTW3:46 pmDetroit Metropolitan Wayne County
$91
Find similar
Delta
Aug 23
DTW8:00 pmDetroit Metropolitan Wayne County
1h 23m
ORD8:23 pmChicago O'Hare Intl
Aug 25
ORD7:15 amChicago O'Hare Intl
1h 15m
DTW9:30 amDetroit Metropolitan Wayne County
$94
Find similar
Delta
Oct 23
DTW9:00 amDetroit Metropolitan Wayne County
1h 23m
ORD9:23 amChicago O'Hare Intl
Oct 27
ORD10:30 amChicago O'Hare Intl
1h 23m
DTW12:53 pmDetroit Metropolitan Wayne County
$97
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Michigan to Illinois 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 August 2, 2025.
Use the filters below to find and compare flights from Michigan to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DetroitSt. Louis

DTW - STL

DTWSTL

Detroit Metropolitan Wayne County

Fri 8/22

1:00 pm-1:32 pm

Nonstop1h 32m

Lambert-St Louis

Sun 8/24

2:30 pm-5:00 pm

Nonstop1h 30m

$58

DetroitSt. Louis

DTW - STL

DTWSTL

Detroit Metropolitan Wayne County

Thu 8/21

1:00 pm-1:32 pm

Nonstop1h 32m

Lambert-St Louis

Mon 8/25

2:30 pm-5:00 pm

Nonstop1h 30m

$62

Grand RapidsChicago

GRR - ORD

GRRORD

Grand Rapids Gerald R. Ford Intl

Wed 8/20

6:05 am-6:17 am

Nonstop1h 12m

Chicago O'Hare Intl

Sat 8/23

9:45 am-11:41 am

Nonstop0h 56m

$91

ChicagoSt. Louis

ORD - STL

ORDSTL

Chicago O'Hare Intl

Sat 9/20

7:10 pm-8:32 pm

Nonstop1h 22m

Lambert-St Louis

Sat 10/4

2:01 pm-3:28 pm

Nonstop1h 27m

$91

DetroitChicago

DTW - ORD

DTWORD

Detroit Metropolitan Wayne County

Wed 9/10

7:45 am-8:04 am

Nonstop1h 19m

Chicago O'Hare Intl

Tue 9/16

1:22 pm-3:46 pm

Nonstop1h 24m

$91

ChicagoSt. Louis

MDW - STL

MDWSTL

Chicago Midway

Sat 9/20

6:35 am-7:45 am

Nonstop1h 10m

Lambert-St Louis

Sat 10/4

1:55 pm-3:05 pm

Nonstop1h 10m

$91

DetroitChicago

DTW - MDW

DTWMDW

Detroit Metropolitan Wayne County

Wed 9/10

2:30 pm-2:40 pm

Nonstop1h 10m

Chicago Midway

Tue 9/16

8:20 pm-10:30 pm

Nonstop1h 10m

$91

ChicagoSt. Louis

ORD - STL

ORDSTL

Chicago O'Hare Intl

Sat 9/6

2:20 pm-3:44 pm

Nonstop1h 24m

Lambert-St Louis

Mon 9/8

7:04 pm-8:36 pm

Nonstop1h 32m

$94

DetroitChicago

DTW - ORD

DTWORD

Detroit Metropolitan Wayne County

Sat 8/23

8:00 pm-8:23 pm

Nonstop1h 23m

Chicago O'Hare Intl

Mon 8/25

7:15 am-9:30 am

Nonstop1h 15m

$94

Grand RapidsChicago

GRR - ORD

GRRORD

Grand Rapids Gerald R. Ford Intl

Thu 8/28

6:39 pm-6:50 pm

Nonstop1h 11m

Chicago O'Hare Intl

Thu 9/4

10:35 am-12:47 pm

Nonstop1h 12m

$97

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Illinois from

How to get the cheapest flight ticket from Michigan 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 Michigan 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 Michigan to Illinois is on a Friday when prices can be found for as low as $507. Flights from Michigan to Illinois on a Monday will generally be more expensive and average around $756. 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 Michigan to Illinois during this time can be as low as $464. Flights at noon are often more expensive with an average ticket price of $900.

What is the cheapest Michigan to Illinois flight route?

Fly from Detroit Metropolitan Wayne County to Chicago Midway for the best Michigan - 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 Michigan when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $223 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Michigan for as low as $125 on momondo.

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

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

Can stopping save me money on Michigan to Illinois flights?

No. A direct flight is the cheapest option for a flight between Michigan to Illinois.

Cheap Michigan to Illinois flight deals and tips

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

Best Price Found

$28

Fastest flight time

1h 05m

Direct flights

Every day

Airports in Illinois

3 airports
The best one-way flight to Illinois from Michigan in the past 72 hours is $28. The best round-trip flight deal from Michigan to Illinois found on momondo in the last 72 hours is $58.
The fastest flight from Michigan to Illinois takes 1h 05m
Direct flights go from Michigan to Illinois every day.
There are 3 airports near Illinois: Chicago O'Hare Intl (ORD), Chicago Midway (MDW), Lambert-St Louis (STL)
Search flight deals

  • When did momondo last update prices for flights from Michigan to Illinois?

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

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Michigan to Illinois.

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

    The necessary travel and health documents for your Illinois trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Michigan to Illinois?

Best airlines flying from Michigan to Illinois

Compare and see reviews for airlines that fly from Michigan to Illinois with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $38Free CancellationRating
6.3
8,054 reviews
Search Spirit Airlines flights
United AirlinesPriceFrom $88Free CancellationRating
7.4
8,904 reviews
Search United Airlines flights
DeltaPriceFrom $95Free CancellationRating
8.0
7,983 reviews
Search Delta flights
American AirlinesPriceFrom $97Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
SouthwestPriceFrom $122Free CancellationRating
8.0
4,246 reviews
Search Southwest flights

Why use momondo?

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

It is quick and easy to find Michigan to Illinois flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Illinois that suits you.

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

Yes. momondo enables you to select and highlight flights to Illinois from Michigan with this policy.

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

momondo helps you find the best flight between Michigan and Illinois by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Yes. momondo can track prices for Michigan to Illinois flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your Illinois 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.
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Find better results for your trip to Illinois

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