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Cheap flights from Illinois to Michigan 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 Illinois to Michigan departing on 5/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Illinois to Michigan

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
5:27 pm - 12:39 am
STL
-
DTW
6h 12m
1 stop
Frontier Logo
6:50 am - 5:33 pm
DTW
-
STL
11h 43m
1 stop
$128Frontier
Wed, May 6 - Tue, May 12
Frontier Logo
5:27 pm - 12:39 am
STL
-
DTW
6h 12m
1 stop
Frontier Logo
6:05 pm - 8:55 am
DTW
-
STL
15h 50m
1 stop
$133Frontier
Mon, Jun 1 - Fri, Jun 5
Southwest Logo
10:15 am - 2:05 pm
STL
-
MDW
3h 50m
1 stop
Southwest Logo
2:50 pm - 8:00 pm
MDW
-
STL
5h 10m
1 stop
$174Southwest
Thu, May 21 - Tue, May 26
Southwest Logo
8:35 am - 3:00 pm
STL
-
ORD
6h 25m
1 stop
Southwest Logo
2:00 pm - 10:55 pm
ORD
-
STL
8h 55m
1 stop
$174Southwest
Wed, May 13 - Thu, May 14
Delta Logo
6:45 am - 12:42 pm
STL
-
MDW
5h 57m
1 stop
Delta Logo
1:22 pm - 5:16 pm
MDW
-
STL
3h 54m
1 stop
$184Delta
Tue, May 12 - Sat, May 16
Delta Logo
9:15 am - 4:56 pm
STL
-
ORD
7h 41m
1 stop
Delta Logo
7:00 am - 1:10 pm
ORD
-
STL
6h 10m
1 stop
$184Delta
Tue, May 19 - Thu, May 28
United Airlines Logo
9:21 am - 10:45 am
STL
-
ORD
1h 24mnonstop
United Airlines Logo
9:20 pm - 10:45 pm
ORD
-
STL
1h 25mnonstop
$187United Airlines
Tue, May 5 - Wed, May 6
American Airlines Logo
10:11 pm - 12:45 am
ORD
-
DTW
1h 34mnonstop
American Airlines Logo
6:00 am - 10:11 am
DTW
-
ORD
5h 11m
1 stop
$197American Airlines
Tue, May 5 - Sat, May 9
United Airlines Logo
6:55 am - 9:06 am
ORD
-
FNT
1h 11mnonstop
United Airlines Logo
7:45 pm - 8:20 pm
FNT
-
ORD
1h 35mnonstop
$239United Airlines
Mon, May 11 - Mon, May 18
American Airlines Logo
9:39 pm - 11:57 pm
ORD
-
TVC
1h 18mnonstop
American Airlines Logo
4:11 pm - 4:43 pm
TVC
-
ORD
1h 32mnonstop
$239American Airlines
Fri, May 8 - Sun, May 10

United Airlines flights from Illinois to Michigan

Our best United Airlines deals on Illinois to Michigan flight tickets
United Airlines
May 5
STL9:21 amLambert-St Louis
1h 24m
ORD10:45 amChicago O'Hare Intl
May 6
ORD9:20 pmChicago O'Hare Intl
1h 25m
STL10:45 pmLambert-St Louis
$187
United Airlines
May 11
STL8:30 pmLambert-St Louis
1h 31m
ORD10:01 pmChicago O'Hare Intl
May 18
ORD7:45 pmChicago O'Hare Intl
1h 28m
STL9:13 pmLambert-St Louis
$191
United Airlines
May 2
STL5:28 pmLambert-St Louis
1h 32m
ORD7:00 pmChicago O'Hare Intl
May 17
ORD7:45 pmChicago O'Hare Intl
1h 28m
STL9:13 pmLambert-St Louis
$234

Delta flights from Illinois to Michigan

Our best Delta deals on Illinois to Michigan flight tickets
Delta
May 6
STL6:48 amLambert-St Louis
1h 29m
DTW9:17 amDetroit Metropolitan Wayne County
May 12
DTW8:30 pmDetroit Metropolitan Wayne County
1h 39m
STL9:09 pmLambert-St Louis
$177
Delta
May 12
STL5:15 pmLambert-St Louis
5h 12m
1 stop
ORD10:27 pmChicago O'Hare Intl
May 16
ORD10:15 amChicago O'Hare Intl
5h 04m
1 stop
STL3:19 pmLambert-St Louis
$184
Delta
May 12
STL6:21 amLambert-St Louis
6h 40m
2 stops
ORD1:01 pmChicago O'Hare Intl
May 16
ORD5:41 pmChicago O'Hare Intl
5h 40m
1 stop
STL11:21 pmLambert-St Louis
$189

momondo Fare Finder

 
Customize your flight search to find flights from Illinois to Michigan 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 April 13, 2026.
Use the filters below to find and compare flights from Illinois to Michigan that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

Wed 5/6

5:27 pm-12:39 am

1 stop6h 12m

Detroit Metropolitan Wayne County

Tue 5/12

6:50 am-5:33 pm

1 stop11h 43m

$128

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

Mon 6/1

5:27 pm-12:39 am

1 stop6h 12m

Detroit Metropolitan Wayne County

Fri 6/5

6:05 pm-8:55 am

1 stop15h 50m

$133

St. LouisChicago

STL - MDW

STLMDW

Lambert-St Louis

Thu 5/21

10:15 am-2:05 pm

1 stop3h 50m

Chicago Midway

Tue 5/26

2:50 pm-8:00 pm

1 stop5h 10m

$174

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Wed 5/13

8:35 am-3:00 pm

1 stop6h 25m

Chicago O'Hare Intl

Thu 5/14

2:00 pm-10:55 pm

1 stop8h 55m

$174

St. LouisChicago

STL - MDW

STLMDW

Lambert-St Louis

Tue 5/12

6:45 am-12:42 pm

1 stop5h 57m

Chicago Midway

Sat 5/16

1:22 pm-5:16 pm

1 stop3h 54m

$184

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Tue 5/19

9:15 am-4:56 pm

1 stop7h 41m

Chicago O'Hare Intl

Thu 5/28

7:00 am-1:10 pm

1 stop6h 10m

$184

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Tue 5/5

9:21 am-10:45 am

Nonstop1h 24m

Chicago O'Hare Intl

Wed 5/6

9:20 pm-10:45 pm

Nonstop1h 25m

$187

ChicagoDetroit

ORD - DTW

ORDDTW

Chicago O'Hare Intl

Tue 5/5

10:11 pm-12:45 am

Nonstop1h 34m

Detroit Metropolitan Wayne County

Sat 5/9

6:00 am-10:11 am

1 stop5h 11m

$197
Quickest round-trip

ChicagoFlint

ORD - FNT

ORDFNT

Chicago O'Hare Intl

Mon 5/11

6:55 am-9:06 am

Nonstop1h 11m

Flint Bishop

Mon 5/18

7:45 pm-8:20 pm

Nonstop1h 35m

$239

ChicagoTraverse City

ORD - TVC

ORDTVC

Chicago O'Hare Intl

Fri 5/8

9:39 pm-11:57 pm

Nonstop1h 18m

Traverse City Cherry Capital

Sun 5/10

4:11 pm-4:43 pm

Nonstop1h 32m

$239

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 Michigan from

How to get the cheapest flight ticket from Illinois to Michigan

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 Michigan?

If you aren’t able to travel to Michigan during the month of May, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $229.

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

The cheapest day to depart from Illinois to Michigan is on a Friday when prices can be found for as low as $344. If your travel schedule is flexible, try to avoid departing on a Monday because tickets tend to average around $622. These prices are subject to change though, so be sure to set up a Price Alert for flights to Michigan.

What is the cheapest time of day to depart on your flight to Michigan?

The cheapest time of day to fly to Michigan is in the morning when flights can be purchased for as low as $437. At noon is when there is more demand to fly to Michigan, so prices are often more expensive at around $643 per ticket.

What is the cheapest Illinois to Michigan flight route?

Fly from Chicago O'Hare Intl to Grand Rapids Gerald R. Ford Intl for the best Illinois - Michigan flight prices

How far in advance should I book a flight to Michigan?

You are more likely to see cheaper flights to Michigan from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Michigan for around $322 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Michigan from Illinois for as low as $151 on momondo.

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

There are 4 cabin classes available to choose from on Illinois to Michigan 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 Illinois to Michigan flights?

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

Cheap Illinois to Michigan flight deals and tips

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

Best Price Found

$74

Fastest flight time

0h 50m

Direct flights

Every day

Airports in Michigan

115 airports
The best one-way flight to Michigan from Illinois in the past 72 hours is $74. The best round-trip flight deal from Illinois to Michigan found on momondo in the last 72 hours is $84.
The fastest flight from Illinois to Michigan takes 0h 50m
Direct flights go from Illinois to Michigan every day.
There are 115 airports in Michigan. From Illinois there are direct flights to Traverse City Cherry Capital (TVC), Chicago O'Hare Intl (ORD), Chicago Midway (MDW), Detroit Metropolitan Wayne County (DTW) and 1 more.
Search flight deals

Frequently asked questions about flying from Illinois to Michigan

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

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

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

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

    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 Illinois to Michigan.

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

    The travel and health documents you'll need for your trip to Michigan may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Michigan. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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

Best airlines flying from Illinois to Michigan

Compare and see reviews for airlines that fly from Illinois to Michigan with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $91Free CancellationRating
7.9
8,406 reviews
Search Delta flights
American AirlinesPriceFrom $91Free CancellationRating
7.1
11,568 reviews
Search American Airlines flights
SouthwestPriceFrom $97Free CancellationRating
8.0
4,331 reviews
Search Southwest flights
United AirlinesPriceFrom $133Free CancellationRating
7.4
9,579 reviews
Search United Airlines flights
FrontierPriceFrom $144Free CancellationRating
5.7
2,993 reviews
Search Frontier flights

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Illinois to Michigan for you.

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

Yes. All flights to Michigan from Illinois on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once all potential Illinois to Michigan flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Yes momondo offers price alerts on flights to Michigan from Illinois. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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1 adult
Wed 5/13
Wed 5/20
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