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$38+ 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 7/31. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — DTW
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$60
(Priceline)

One-way from

$38
(FlightHub)

Popular in

February

Cheapest in

October

Average price

$315

Good round-trip deal

$111 or less

Good one-way deal

$64 or less
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. 26% potential increase in price ($82 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 12, 2025.

This Priceline deal was found by Cheapflights users on 6/12. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/77:13 pmSTL - DTW
Nonstop1h 28mSpirit Airlines
Thu 7/109:20 amDTW - STL
Nonstop1h 32mSpirit Airlines
Deal found 6/12$60
This American Airlines deal was found by Cheapflights users on 6/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1211:40 amORD - GRR
Nonstop0h 59mAmerican Airlines
Wed 11/192:17 pmGRR - ORD
Nonstop1h 03mAmerican Airlines
Deal found 6/10$97
This Southwest deal was found by Cheapflights users on 6/11. 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.
Wed 8/611:35 amSTL - MDW
Nonstop1h 05mSouthwest
Mon 8/186:05 pmMDW - STL
Nonstop1h 15mSouthwest
Deal found 6/11$97
This American Airlines deal was found by Cheapflights users on 6/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/218:50 amSTL - ORD
Nonstop1h 31mAmerican Airlines
Thu 9/410:34 pmORD - STL
Nonstop1h 14mAmerican Airlines
Deal found 6/11$97
This Southwest deal was found by Cheapflights users on 6/12. 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 8/78:40 pmMDW - DTW
Nonstop1h 10mSouthwest
Mon 8/115:40 amDTW - MDW
2 stops8h 50mSouthwest
Deal found 6/12$112
This Southwest deal was found by Cheapflights users on 6/10. 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.
Tue 8/56:25 amSTL - ORD
1 stop6h 20mSouthwest
Wed 8/61:50 pmORD - STL
1 stop8h 05mSouthwest
Deal found 6/10$117
This Delta deal was found by Cheapflights users on 6/10. 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.
Thu 8/146:40 amSTL - DTW
Nonstop1h 33mDelta
Sun 8/178:55 amDTW - STL
Nonstop1h 37mDelta
Deal found 6/10$121
This United Airlines deal was found by Cheapflights users on 6/10. 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.
Mon 8/1810:45 amORD - DTW
Nonstop1h 29mUnited Airlines
Mon 8/186:15 pmDTW - ORD
Nonstop1h 26mUnited Airlines
Deal found 6/10$123
This Delta deal was found by Cheapflights users on 6/10. 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.
Thu 8/79:00 amORD - DTW
Nonstop1h 20mDelta
Sat 8/912:30 pmDTW - ORD
Nonstop1h 20mDelta
Deal found 6/10$124
This Delta deal was found by Cheapflights users on 6/10. 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.
Sat 8/91:09 pmMDW - DTW
Nonstop1h 11mDelta
Tue 8/268:25 amDTW - MDW
Nonstop1h 10mDelta
Deal found 6/10$124
This SmartFares deal was found by Cheapflights users on 6/11. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/71:34 pmORD - DTW
1 stop7h 45mSpirit Airlines
Tue 7/85:15 amDTW - ORD
1 stop5h 23mSpirit Airlines
Deal found 6/11$135
This Southwest deal was found by Cheapflights users on 6/11. 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.
Fri 8/18:35 pmSTL - DTW
Nonstop1h 30mSouthwest
Mon 8/45:15 amDTW - STL
1 stop4h 15mSouthwest
Deal found 6/11$149

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 June 12, 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. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

Mon 7/7

7:13 pm-9:41 pm

Nonstop1h 28m

Detroit Metropolitan Wayne County

Thu 7/10

9:20 am-9:52 am

Nonstop1h 32m

$60

St. LouisChicago

STL - MDW

STLMDW

Lambert-St Louis

Thu 8/7

6:00 pm-11:50 pm

1 stop5h 50m

Chicago Midway

Mon 8/11

7:30 am-8:40 am

Nonstop1h 10m

$87

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Thu 8/21

8:50 am-10:21 am

Nonstop1h 31m

Chicago O'Hare Intl

Thu 9/4

10:34 pm-11:48 pm

Nonstop1h 14m

$97

ChicagoDetroit

MDW - DTW

MDWDTW

Chicago Midway

Thu 8/7

8:40 pm-10:50 pm

Nonstop1h 10m

Detroit Metropolitan Wayne County

Mon 8/11

5:40 am-1:30 pm

2 stops8h 50m

$112

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Tue 8/5

6:25 am-12:45 pm

1 stop6h 20m

Chicago O'Hare Intl

Wed 8/6

1:50 pm-9:55 pm

1 stop8h 05m

$117

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

Thu 8/14

6:40 am-9:13 am

Nonstop1h 33m

Detroit Metropolitan Wayne County

Sun 8/17

8:55 am-9:32 am

Nonstop1h 37m

$121

ChicagoDetroit

ORD - DTW

ORDDTW

Chicago O'Hare Intl

Mon 8/18

10:45 am-1:14 pm

Nonstop1h 29m

Detroit Metropolitan Wayne County

Mon 8/18

6:15 pm-6:41 pm

Nonstop1h 26m

$123

ChicagoDetroit

ORD - DTW

ORDDTW

Chicago O'Hare Intl

Thu 8/7

9:00 am-11:20 am

Nonstop1h 20m

Detroit Metropolitan Wayne County

Sat 8/9

12:30 pm-12:50 pm

Nonstop1h 20m

$124

ChicagoDetroit

MDW - DTW

MDWDTW

Chicago Midway

Sat 8/9

5:53 pm-8:07 pm

Nonstop1h 14m

Detroit Metropolitan Wayne County

Wed 8/27

8:25 am-8:35 am

Nonstop1h 10m

$124

ChicagoDetroit

ORD - DTW

ORDDTW

Chicago O'Hare Intl

Mon 7/7

1:34 pm-10:19 pm

1 stop7h 45m

Detroit Metropolitan Wayne County

Tue 7/8

5:15 am-9:38 am

1 stop5h 23m

$135

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

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, April is the cheapest month in which you can book a flight from Illinois to Michigan (average of $257). Flying from Illinois to Michigan in March is currently the most expensive (average of $305). 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 June 12, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Michigan as you normally would.

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 June 12, 2025.

The most flights from USIL to USMI are scheduled on a Thursday (90 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (45 on average).

Rainfall in Michigan by month

Plan your trip to Michigan by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Michigan ranges from 1.8 - 3.1 inches per month. August is typically the wettest month, when rainfall can reach 3.1 in. January is typically the driest time to visit Michigan when rainfall is around 1.8 in.

Temperature in Michigan by month

Plan your trip to Michigan by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Michigan, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 24.8 F).

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 June 12, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Southwest and Delta from Illinois to Michigan by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
JetBlue
7.3
Good
2,925 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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.

  • 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 $38 on Spirit Airlines. Other airlines that offer cheap prices include United Airlines from $49 and Southwest 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, April is the cheapest month in which you can book a flight from Illinois to Michigan (average of $257). Flying from Illinois to Michigan in March is currently the most expensive (average of $305). 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$37Average$68FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$97Average$339FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$97Average$378FlexibilityNo cancel feeOn-time69%
DeltaCheapest$105Average$375FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$118Average$257FlexibilityNo cancel feeOn-time63%

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