What airlines fly to Illinois?

United Airlines, American Airlines and Delta are the top three most popular airlines that fly to Illinois from Michigan according to our data. United Airlines 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 Michigan to Illinois on average per week?

1,182 flights are operational weekly from Michigan to Illinois as of December 2025. The most popular departure day for this route is Mon, with 20% of flights per week taking off on this day.

How many flights depart from Michigan to Illinois on average per day?

The number of flights available between Michigan and Illinois is 168 per day as of December 2025. The most frequent departure time is 12:00PM, with 44% of daily flights leaving in the afternoon.

How long is the flight from Michigan to Illinois?

The flight from Michigan to Illinois depends on which airports you’re departing and arriving from and whether or not you have a layover. If you fly from Grand Rapids (a popular airport in Michigan) to Chicago O'Hare Intl Airport (the most popular airport in Illinois), then the flight time is 1h 08m on average. If you fly from Traverse City (another popular airport in Michigan) to Chicago O'Hare Intl Airport, then the average flight time is 1h 18m.

What is the cheapest airline that flies from Michigan to Illinois?

Southwest, Frontier, and Spirit Airlines are the most popular carriers operating from Michigan to Illinois

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?

As of December 2025, there are 7 operators available to choose from 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.

$60 Cheap Flights from Michigan to Illinois in 2025/26

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Michigan to Illinois

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

2:47 pm - 8:18 am

DTW

ORD

18h 31m1 stop

9:23 am - 10:12 pm

ORD

DTW

11h 49m1 stop

$133Spirit Airlines

Tue, Feb 3 - Tue, Feb 10

7:13 pm - 9:39 am

DTW

ORD

15h 26m1 stop

8:10 am - 6:16 pm

ORD

DTW

9h 06m1 stop

$138Multiple Airlines

Mon, Mar 2 - Wed, Mar 4

1:25 pm - 2:50 pm

ORD

STL

1h 25mnonstop

6:44 pm - 8:15 pm

STL

ORD

1h 31mnonstop

$153American Airlines

Tue, Jan 20 - Wed, Jan 21

5:31 pm - 5:55 pm

DTW

MDW

1h 24mnonstop

1:29 pm - 3:33 pm

MDW

DTW

1h 04mnonstop

$153Delta

Tue, Jan 20 - Tue, Jan 27

7:40 pm - 8:55 pm

MDW

STL

1h 15mnonstop

5:55 pm - 7:05 pm

STL

MDW

1h 10mnonstop

$157Southwest

Sat, Jan 31 - Mon, Feb 2

7:00 am - 7:30 am

DTW

MDW

1h 30mnonstop

5:15 pm - 10:30 pm

MDW

DTW

4h 15m1 stop

$158Southwest

Sat, Jan 24 - Tue, Jan 27

9:25 pm - 10:58 pm

ORD

STL

1h 33mnonstop

3:11 pm - 4:55 pm

STL

ORD

1h 44mnonstop

$162United Airlines

Mon, Jan 12 - Tue, Jan 13

12:30 pm - 12:51 pm

DTW

MDW

1h 21mnonstop

9:33 am - 11:44 am

MDW

DTW

1h 11mnonstop

$162Delta

Tue, Jan 20 - Thu, Jan 29

1:00 pm - 2:30 pm

ORD

STL

1h 30mnonstop

6:40 pm - 8:23 pm

STL

ORD

1h 43mnonstop

$171United Airlines

Thu, Jan 15 - Mon, Jan 19

8:50 am - 10:20 am

ORD

STL

1h 30mnonstop

6:44 pm - 8:15 pm

STL

ORD

1h 31mnonstop

$172American Airlines

Thu, Jan 15 - Mon, Jan 19

American Airlines flights from Michigan to Illinois

Our best American Airlines deals on Michigan to Illinois flight tickets

American Airlines

Jan 20

ORD1:25 pmChicago O'Hare Intl

1h 25m

STL2:50 pmLambert-St Louis

Jan 21

STL6:44 pmLambert-St Louis

1h 31m

ORD8:15 pmChicago O'Hare Intl

$153

Find similar

American Airlines

Jan 15

ORD8:50 amChicago O'Hare Intl

1h 30m

STL10:20 amLambert-St Louis

Jan 19

STL6:00 amLambert-St Louis

1h 27m

ORD7:27 amChicago O'Hare Intl

$172

Find similar

American Airlines

Jan 29

TVC5:49 pmTraverse City Cherry Capital

1h 46m

ORD6:35 pmChicago O'Hare Intl

Feb 2

ORD11:40 amChicago O'Hare Intl

1h 13m

TVC1:53 pmTraverse City Cherry Capital

$179

Find similar

Frontier flights from Michigan to Illinois

Our best Frontier deals on Michigan to Illinois flight tickets

Frontier

Jan 16

ORD4:41 pmChicago O'Hare Intl

14h 10m

1 stop

STL6:51 amLambert-St Louis

Jan 19

STL8:32 pmLambert-St Louis

17h 25m

1 stop

ORD1:57 pmChicago O'Hare Intl

$167

Find similar

Frontier

Feb 19

DTW4:27 pmDetroit Metropolitan Wayne County

7h 10m

1 stop

MDW10:37 pmChicago Midway

Feb 23

MDW2:19 pmChicago Midway

5h 46m

1 stop

DTW9:05 pmDetroit Metropolitan Wayne County

$172

Find similar

Frontier

Jan 15

DTW8:49 amDetroit Metropolitan Wayne County

13h 23m

1 stop

ORD9:12 pmChicago O'Hare Intl

Jan 19

ORD9:59 pmChicago O'Hare Intl

21h 45m

2 stops

DTW8:44 pmDetroit Metropolitan Wayne County

$177

Find similar

Fly from

Fly to

Route

Depart

Return

Price

DetroitChicago

DTW - ORD

DTWORD

Detroit Metropolitan Wayne County

Tue 2/3

2:47 pm-8:18 am

1 stop18h 31m

Chicago O'Hare Intl

Tue 2/10

9:23 am-10:12 pm

1 stop11h 49m

$133

DetroitChicago

DTW - ORD

DTWORD

Detroit Metropolitan Wayne County

Mon 3/2

7:13 pm-9:39 am

1 stop15h 26m

Chicago O'Hare Intl

Wed 3/4

8:10 am-6:16 pm

1 stop9h 06m

$138

ChicagoSt. Louis

ORD - STL

ORDSTL

Chicago O'Hare Intl

Tue 1/20

1:25 pm-2:50 pm

Nonstop1h 25m

Lambert-St Louis

Wed 1/21

6:44 pm-8:15 pm

Nonstop1h 31m

$153

DetroitChicago

DTW - MDW

DTWMDW

Detroit Metropolitan Wayne County

Tue 1/20

5:31 pm-5:55 pm

Nonstop1h 24m

Chicago Midway

Tue 1/27

1:29 pm-3:33 pm

Nonstop1h 04m

$153

ChicagoSt. Louis

MDW - STL

MDWSTL

Chicago Midway

Sat 1/31

7:40 pm-8:55 pm

Nonstop1h 15m

Lambert-St Louis

Mon 2/2

5:55 pm-7:05 pm

Nonstop1h 10m

$157

DetroitChicago

DTW - MDW

DTWMDW

Detroit Metropolitan Wayne County

Sat 1/24

7:00 am-7:30 am

Nonstop1h 30m

Chicago Midway

Tue 1/27

5:15 pm-10:30 pm

1 stop4h 15m

$158

ChicagoSt. Louis

ORD - STL

ORDSTL

Chicago O'Hare Intl

Mon 1/12

9:25 pm-10:58 pm

Nonstop1h 33m

Lambert-St Louis

Tue 1/13

3:11 pm-4:55 pm

Nonstop1h 44m

$162

DetroitChicago

DTW - MDW

DTWMDW

Detroit Metropolitan Wayne County

Tue 1/20

12:30 pm-12:51 pm

Nonstop1h 21m

Chicago Midway

Thu 1/29

9:33 am-11:44 am

Nonstop1h 11m

$162

ChicagoSt. Louis

ORD - STL

ORDSTL

Chicago O'Hare Intl

Thu 1/15

1:00 pm-2:30 pm

Nonstop1h 30m

Lambert-St Louis

Mon 1/19

6:40 pm-8:23 pm

Nonstop1h 43m

$171

ChicagoSt. Louis

ORD - STL

ORDSTL

Chicago O'Hare Intl

Thu 1/15

8:50 am-10:20 am

Nonstop1h 30m

Lambert-St Louis

Mon 1/19

6:44 pm-8:15 pm

Nonstop1h 31m

$172

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

Other information

What is the cheapest month to fly to Illinois?

The cheapest month to fly to Illinois from Michigan is in April. Flight prices, which tend to average around $152, 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 April, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $162.

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 $537. Flights from Michigan to Illinois on a Monday will generally be more expensive and average around $751. 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 morning. Flights from Michigan to Illinois during this time can be as low as $520. Flights in the afternoon are often more expensive with an average ticket price of $879.

What is the cheapest Michigan to Illinois flight route?

Fly from Muskegon 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 $243 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 $134 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	$49
Fastest flight time	0h 50m
Direct flights	Every day
Airports in Illinois	98 airports

The best one-way flight to Illinois from Michigan in the past 72 hours is $49. The best round-trip flight deal from Michigan to Illinois found on momondo in the last 72 hours is $110.

The fastest flight from Michigan to Illinois takes 0h 50m

Direct flights go from Michigan to Illinois every day.

There are 98 airports in Illinois. From Michigan there are direct flights to 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?
As of December 2025, there are 7 operators available to choose from 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?
momondo data reveals that the most frequently booked plane model on the route from Michigan to Illinois is Airbus A320-100/200, representing 11.24% of all bookings. The subsequent popular models are Canadair (Bombardier) Regional Jet 700 at 10.23%, Airbus A319 at 8.07%, and Embraer 175 (Enhanced Winglets) at 8.03%.

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
American Airlines	PriceFrom $91	Free Cancellation	Rating 7.2 11,050 reviews	Search American Airlines flights
Delta	PriceFrom $97	Free Cancellation	Rating 7.9 8,015 reviews	Search Delta flights
United Airlines	PriceFrom $97	Free Cancellation	Rating 7.4 9,109 reviews	Search United Airlines flights
Southwest	PriceFrom $97	Free Cancellation	Rating 8.0 4,256 reviews	Search Southwest flights
Denver Air Connection	PriceFrom $110	Free Cancellation	Rating 8.7 20 reviews	Search Denver Air Connection 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.