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Cheap flights from Michigan to Illinois from $49

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 11/3. 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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Find the cheapest flights from Michigan to Illinois

Cheap round-trip flights

Southwest Logo
5:50 pm - 9:20 pmMDW-STL
3h 30m1 stop
Southwest Logo
7:45 pm - 11:55 pmSTL-MDW
4h 10m1 stop
$97Southwest
Find Deal
Thu, Oct 16 - Mon, Oct 20
American Airlines Logo
12:31 pm - 12:38 pmGRR-ORD
1h 07mnonstop
American Airlines Logo
1:01 pm - 3:05 pmORD-GRR
1h 04mnonstop
$97American Airlines
Find Deal
Tue, Oct 21 - Tue, Oct 28
Delta Logo
7:30 am - 7:50 amDTW-ORD
1h 20mnonstop
Delta Logo
6:59 pm - 9:31 pmORD-DTW
1h 32mnonstop
$98Delta
Find Deal
Thu, Oct 16 - Mon, Oct 20
Southwest Logo
7:00 am - 4:00 pmORD-STL
9h 00m1 stop
Southwest Logo
10:15 am - 3:20 pmSTL-ORD
5h 05m1 stop
$102Southwest
Find Deal
Wed, Oct 22 - Wed, Oct 29
Delta Logo
8:10 pm - 8:38 pmDTW-ORD
1h 28mnonstop
Delta Logo
7:00 am - 9:30 amORD-DTW
1h 30mnonstop
$107Delta
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Wed, Feb 18 - Sat, Feb 21
United Airlines Logo
1:03 pm - 2:27 pmORD-STL
1h 24mnonstop
United Airlines Logo
9:20 am - 10:50 amSTL-ORD
1h 30mnonstop
$124United Airlines
Find Deal
Wed, Oct 15 - Sat, Oct 18
United Airlines Logo
2:20 pm - 3:44 pmORD-STL
1h 24mnonstop
United Airlines Logo
5:28 pm - 6:53 pmSTL-ORD
1h 25mnonstop
$131United Airlines
Find Deal
Thu, Oct 16 - Mon, Oct 20
Multiple Airlines Logo
5:15 pm - 9:35 pmDTW-MDW
5h 20m1 stop
Multiple Airlines Logo
1:37 pm - 8:09 pmMDW-DTW
5h 32m1 stop
$133Multiple Airlines
Find Deal
Sat, Nov 8 - Sat, Nov 15
Multiple Airlines Logo
9:05 pm - 8:21 pmDTW-MDW
24h 16m1 stop
Multiple Airlines Logo
2:06 pm - 5:12 pmMDW-DTW
26h 06m1 stop
$139Multiple Airlines
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Wed, Oct 22 - Wed, Oct 29
Spirit Airlines Logo
8:50 pm - 6:38 pmDTW-ORD
22h 48m2 stops
Spirit Airlines Logo
7:25 am - 5:15 pmORD-DTW
8h 50m1 stop
$194Spirit Airlines
Find Deal
Tue, Oct 14 - Sat, Oct 18

Delta flights from Michigan to Illinois

Our best Delta deals on Michigan to Illinois flight tickets
Delta
Oct 16
DTW7:30 amDetroit Metropolitan Wayne County
1h 20m
ORD7:50 amChicago O'Hare Intl
Oct 20
ORD6:59 pmChicago O'Hare Intl
1h 32m
DTW9:31 pmDetroit Metropolitan Wayne County
$98
Find similar
Delta
Feb 18
DTW8:10 pmDetroit Metropolitan Wayne County
1h 28m
ORD8:38 pmChicago O'Hare Intl
Feb 21
ORD7:00 amChicago O'Hare Intl
1h 30m
DTW9:30 amDetroit Metropolitan Wayne County
$107
Find similar
Delta
Oct 18
DTW12:20 pmDetroit Metropolitan Wayne County
1h 20m
ORD12:40 pmChicago O'Hare Intl
Oct 22
ORD10:30 amChicago O'Hare Intl
1h 23m
DTW12:53 pmDetroit Metropolitan Wayne County
$134
Find similar

Spirit Airlines flights from Michigan to Illinois

Our best Spirit Airlines deals on Michigan to Illinois flight tickets
Spirit Airlines
Oct 14
DTW8:50 pmDetroit Metropolitan Wayne County
22h 48m
2 stops
ORD6:38 pmChicago O'Hare Intl
Oct 18
ORD7:25 amChicago O'Hare Intl
8h 50m
1 stop
DTW5:15 pmDetroit Metropolitan Wayne County
$194
Find similar
Spirit Airlines
Oct 10
DTW2:53 pmDetroit Metropolitan Wayne County
28h 00m
1 stop
ORD5:53 pmChicago O'Hare Intl
Oct 14
ORD6:58 pmChicago O'Hare Intl
22h 46m
2 stops
DTW6:44 pmDetroit Metropolitan Wayne County
$225
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 September 26, 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

ChicagoSt. Louis

MDW - STL

MDWSTL

Chicago Midway

Thu 10/16

5:50 pm-9:20 pm

1 stop3h 30m

Lambert-St Louis

Mon 10/20

7:45 pm-11:55 pm

1 stop4h 10m

$97

Grand RapidsChicago

GRR - ORD

GRRORD

Grand Rapids Gerald R. Ford Intl

Tue 10/21

12:31 pm-12:38 pm

Nonstop1h 07m

Chicago O'Hare Intl

Tue 10/28

1:01 pm-3:05 pm

Nonstop1h 04m

$97

DetroitChicago

DTW - ORD

DTWORD

Detroit Metropolitan Wayne County

Thu 10/16

7:30 am-7:50 am

Nonstop1h 20m

Chicago O'Hare Intl

Mon 10/20

6:59 pm-9:31 pm

Nonstop1h 32m

$98

ChicagoSt. Louis

ORD - STL

ORDSTL

Chicago O'Hare Intl

Wed 10/22

7:00 am-4:00 pm

1 stop9h 00m

Lambert-St Louis

Wed 10/29

10:15 am-3:20 pm

1 stop5h 05m

$102

DetroitChicago

DTW - ORD

DTWORD

Detroit Metropolitan Wayne County

Wed 2/18

8:10 pm-8:38 pm

Nonstop1h 28m

Chicago O'Hare Intl

Sat 2/21

7:00 am-9:30 am

Nonstop1h 30m

$107

ChicagoSt. Louis

ORD - STL

ORDSTL

Chicago O'Hare Intl

Wed 10/15

1:03 pm-2:27 pm

Nonstop1h 24m

Lambert-St Louis

Sat 10/18

9:20 am-10:50 am

Nonstop1h 30m

$124

ChicagoSt. Louis

ORD - STL

ORDSTL

Chicago O'Hare Intl

Thu 10/16

2:20 pm-3:44 pm

Nonstop1h 24m

Lambert-St Louis

Mon 10/20

5:28 pm-6:53 pm

Nonstop1h 25m

$131

DetroitChicago

DTW - MDW

DTWMDW

Detroit Metropolitan Wayne County

Sat 11/8

5:15 pm-9:35 pm

1 stop5h 20m

Chicago Midway

Sat 11/15

1:37 pm-8:09 pm

1 stop5h 32m

$133

DetroitChicago

DTW - MDW

DTWMDW

Detroit Metropolitan Wayne County

Wed 10/22

9:05 pm-8:21 pm

1 stop24h 16m

Chicago Midway

Wed 10/29

2:06 pm-5:12 pm

1 stop26h 06m

$139

DetroitChicago

DTW - ORD

DTWORD

Detroit Metropolitan Wayne County

Tue 10/14

8:50 pm-6:38 pm

2 stops22h 48m

Chicago O'Hare Intl

Sat 10/18

7:25 am-5:15 pm

1 stop8h 50m

$194

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 $116, 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 April is also cheap. Prices for this month can be found on momondo for an average of $156.

What is the cheapest day to depart on your flight to Illinois?

The cheapest day to depart from Michigan to Illinois is on a Thursday when prices can be found for as low as $533. Flights from Michigan to Illinois on a Monday will generally be more expensive and average around $765. 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 $496. Flights at noon are often more expensive with an average ticket price of $897.

What is the cheapest Michigan to Illinois flight route?

Fly from Detroit Metropolitan Wayne County to Chicago O'Hare Intl 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 $235 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 $145 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

$82

Fastest flight time

1h 03m

Direct flights

Every day

Airports in Illinois

3 airports
The best one-way flight to Illinois from Michigan in the past 72 hours is $82. The best round-trip flight deal from Michigan to Illinois found on momondo in the last 72 hours is $111.
The fastest flight from Michigan to Illinois takes 1h 03m
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
8,051 reviews
Search Spirit Airlines flights
American AirlinesPriceFrom $91Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $97Free CancellationRating
7.4
8,926 reviews
Search United Airlines flights
SouthwestPriceFrom $97Free CancellationRating
8.0
4,245 reviews
Search Southwest flights
DeltaPriceFrom $98Free CancellationRating
7.9
7,973 reviews
Search Delta 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.

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Find better results for your trip to Illinois

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