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$49+ Cheap flights from Illinois to Michigan

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/25. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — DTW
Dec 26 — Jan 21
Fri 12/26
Fri 1/2
1 adult, Economy
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Cheap flight deals from Illinois to Michigan

Keep the following information in mind while searching for Illinois to Michigan flight deals. Data was last updated November 26, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$97
(Southwest)

One-way from

$49
(Southwest)

Popular in

February

Cheapest in

May

Average price

$319

Good round-trip deal

$138 or less

Good one-way deal

$59 or less
Provider with most accurate pricing for Chicago (CHI)-Detroit (DTT) flight deals.
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Provider most trusted by Cheapflights users for Chicago (CHI)-Detroit (DTT) flights.
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From Illinois to Michigan
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One-way flight from Illinois to Michigan
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Highest demand for flights based on searches. 10% potential increase in price ($33 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Price to beat on a round-trip flight from Illinois to Michigan.
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Price to beat on a one-way flight from Illinois to Michigan.
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Find flight deals from Illinois to Michigan

Cheapest flights from Illinois to Michigan
Explore the most affordable flight options available from Illinois to Michigan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 26, 2025.

This Southwest deal was found by Cheapflights users on 11/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/254:25 pmSTL - MDW
Nonstop1h 10mSouthwest
Wed 12/318:25 amMDW - STL
Nonstop1h 15mSouthwest
Deal found 11/25$97
This United Airlines deal was found by Cheapflights users on 11/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/246:30 amSTL - ORD
Nonstop1h 35mUnited Airlines
Wed 12/318:10 pmORD - STL
Nonstop1h 33mUnited Airlines
Deal found 11/25$97
This United Airlines deal was found by Cheapflights users on 11/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/258:05 amSTL - ORD
Nonstop1h 35mUnited Airlines
Wed 12/314:24 pmORD - STL
Nonstop1h 30mUnited Airlines
Deal found 11/25$115
This United Airlines deal was found by Cheapflights users on 11/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/246:30 amSTL - ORD
Nonstop1h 35mUnited Airlines
Wed 12/2412:56 pmORD - STL
Nonstop1h 30mUnited Airlines
Deal found 11/25$127
This Kiwi.com deal was found by Cheapflights users on 11/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/88:36 amORD - DTW
1 stop22h 08mMultiple Airlines
Wed 12/105:15 pmDTW - ORD
1 stop5h 56mMultiple Airlines
Deal found 11/25$142
This Kiwi.com deal was found by Cheapflights users on 11/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/88:36 amORD - DTW
1 stop22h 08mMultiple Airlines
Thu 12/116:00 amDTW - ORD
1 stop17h 11mMultiple Airlines
Deal found 11/24$143
This Kiwi.com deal was found by Cheapflights users on 11/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/97:44 amMDW - DTW
1 stop8h 19mMultiple Airlines
Thu 12/116:00 amDTW - MDW
1 stop8h 01mMultiple Airlines
Deal found 11/25$146
This United Airlines deal was found by Cheapflights users on 11/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/307:55 pmORD - DTW
Nonstop1h 35mUnited Airlines
Thu 1/17:15 amDTW - ORD
Nonstop1h 43mUnited Airlines
Deal found 11/26$147
This Kiwi.com deal was found by Cheapflights users on 11/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/97:44 amMDW - DTW
1 stop6h 56mMultiple Airlines
Wed 12/108:17 pmDTW - MDW
1 stop17h 44mMultiple Airlines
Deal found 11/24$147
This Mytrip deal was found by Cheapflights users on 11/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/94:38 pmORD - DTW
1 stop14h 51mSpirit Airlines
Wed 12/1012:12 pmDTW - ORD
1 stop10h 59mSpirit Airlines
Deal found 11/24$152
This Delta deal was found by Cheapflights users on 11/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/237:00 amORD - DTW
Nonstop1h 28mDelta
Thu 12/258:05 pmDTW - ORD
Nonstop1h 31mDelta
Deal found 11/24$157
This Delta deal was found by Cheapflights users on 11/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/169:34 amMDW - DTW
Nonstop1h 11mDelta
Wed 12/245:07 pmDTW - MDW
Nonstop1h 19mDelta
Deal found 11/25$157

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated November 26, 2025.
Use the filters below to find and compare flights from Illinois to Michigan that are best for you.

Fly from

Illinois

Fly to

Michigan

Route

Depart

Return

Price

St. LouisChicago

STL - MDW

STLMDW

Lambert-St Louis

Sat 1/17

7:40 am-8:50 am

Nonstop1h 10m

Chicago Midway

Sun 1/18

6:10 am-7:35 am

Nonstop1h 25m

$97

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Wed 12/31

6:30 am-8:05 am

Nonstop1h 35m

Chicago O'Hare Intl

Thu 1/1

9:10 pm-10:43 pm

Nonstop1h 33m

$97

St. LouisChicago

STL - MDW

STLMDW

Lambert-St Louis

Thu 12/25

4:25 pm-5:35 pm

Nonstop1h 10m

Chicago Midway

Wed 12/31

8:25 am-9:40 am

Nonstop1h 15m

$97

St. LouisChicago

STL - MDW

STLMDW

Lambert-St Louis

Wed 12/31

4:25 pm-5:35 pm

Nonstop1h 10m

Chicago Midway

Thu 1/1

11:25 am-12:35 pm

Nonstop1h 10m

$97

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Wed 12/24

6:30 am-8:05 am

Nonstop1h 35m

Chicago O'Hare Intl

Wed 12/24

12:56 pm-2:26 pm

Nonstop1h 30m

$127

ChicagoDetroit

ORD - DTW

ORDDTW

Chicago O'Hare Intl

Thu 1/8

5:45 am-1:52 pm

1 stop7h 07m

Detroit Metropolitan Wayne County

Mon 1/12

9:20 am-7:17 pm

1 stop10h 57m

$156

ChicagoDetroit

ORD - DTW

ORDDTW

Chicago O'Hare Intl

Thu 1/15

7:30 am-10:10 am

Nonstop1h 40m

Detroit Metropolitan Wayne County

Sun 1/18

7:15 am-7:58 am

Nonstop1h 43m

$156

ChicagoDetroit

MDW - DTW

MDWDTW

Chicago Midway

Thu 1/15

9:45 am-11:55 am

Nonstop1h 10m

Detroit Metropolitan Wayne County

Sun 1/18

1:40 pm-1:55 pm

Nonstop1h 15m

$156

St. LouisChicago

STL - MDW

STLMDW

Lambert-St Louis

Sat 1/17

7:40 am-8:50 am

Nonstop1h 10m

Chicago Midway

Mon 1/19

8:15 am-9:35 am

Nonstop1h 20m

$156

ChicagoDetroit

ORD - DTW

ORDDTW

Chicago O'Hare Intl

Tue 12/16

6:45 am-9:12 am

Nonstop1h 27m

Detroit Metropolitan Wayne County

Wed 12/24

8:25 am-9:01 am

Nonstop1h 36m

$157

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/23

Showing 1-10 of 60 results
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Best time to book a flight from Illinois to Michigan

Have a flexible travel schedule? Discover the best time to fly to Michigan from Illinois with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Illinois to Michigan

What is the cheapest month to book a flight from Illinois to Michigan?

Currently, October is the cheapest month in which you can book a flight from Illinois to Michigan (average of $80). Flying from Illinois to Michigan in February is currently the most expensive (average of $137). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from IL to MI?

Find hourly flight availability from Illinois to Michigan. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 26, 2025.

One of the essential ways to save on airfare from Illinois to Michigan is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 27% on airfare.

What is the cheapest day to fly from Illinois to Michigan?

Use this chart to determine the cheapest time to fly round-trip from Illinois to Michigan. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Illinois to Michigan flight should consider departing on Saturday evenings when fares are most often at their lowest. Tuesday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Illinois to Michigan

Explore weekly flight availability from Illinois to Michigan. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated November 26, 2025.

The most flights from USIL to USMI are scheduled on a Wednesday (74 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (10 on average).

Reviews of airlines servicing Michigan

Get insights into the airlines that provide service to Michigan. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Michigan. Reviews last updated November 26, 2025.
Read through reviews of airlines operating flights from Illinois to Michigan, such as Denver Air Connection, Southwest, and Delta. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Denver Air Connection
8.7
Very good

Comfort

8.9

Crew

9.4

Entertainment

8.1

Overall

8.7

Boarding

8.7

Food

8.4
Denver Air Connection
8.7
Very good
Denver Air Connection
8.7
Very good

Comfort

8.9

Crew

9.4

Entertainment

8.1

Overall

8.7

Boarding

8.7

Food

8.4
Southwest
8.0
Very good
4,254 reviews
Denver Air Connection
8.7
Very good

Comfort

8.9

Crew

9.4

Entertainment

8.1

Overall

8.7

Boarding

8.7

Food

8.4
Delta
7.9
Good
8,004 reviews
Denver Air Connection
8.7
Very good

Comfort

8.9

Crew

9.4

Entertainment

8.1

Overall

8.7

Boarding

8.7

Food

8.4
United Airlines
7.4
Good
9,050 reviews
Denver Air Connection
8.7
Very good

Comfort

8.9

Crew

9.4

Entertainment

8.1

Overall

8.7

Boarding

8.7

Food

8.4
American Airlines
7.2
Good
11,037 reviews
Denver Air Connection
8.7
Very good

Comfort

8.9

Crew

9.4

Entertainment

8.1

Overall

8.7

Boarding

8.7

Food

8.4

Related info for your journey

Find useful and relevant information for your journey from Illinois to Michigan. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Illinois to Michigan?

    For as low as $97, Southwest can have you in Michigan from Illinois in 1h 10m. The distance between Illinois and Michigan is about 251 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Illinois to Michigan one-way?

    One-way options have recently been found by users for as low as $49 on Southwest. Other airlines that offer cheap prices include United Airlines from $49 and Delta from $59 one-way.

  • Can I find deals for flights from Illinois to Michigan that include hotel bookings?

    Yes. In addition to deals on Illinois to Michigan flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Illinois to Michigan?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Michigan.

  • Can I find deals for business class flights from Illinois to Michigan?

    Yes. Cheapflights offers flight deals from Illinois to Michigan by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Illinois to Michigan?

    Currently, October is the cheapest month in which you can book a flight from Illinois to Michigan (average of $80). Flying from Illinois to Michigan in February is currently the most expensive (average of $137). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Illinois to Michigan

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Illinois to Michigan

Discover the top 5 airlines that operate flights from Illinois to Michigan. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$91Average$252FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$91Average$334FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$97Average$340FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$97Average$257FlexibilityNo cancel feeOn-time63%
FrontierCheapest$144Average$178FlexibilityNo cancel feeOn-time62%

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