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$49+ Cheap flights from Michigan to Illinois

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 2/14. Fares are subject to change and may not be available on all flights or dates of travel.
DTW — ORD
Dec 20 — Dec 271
Sat 12/20
Sat 12/27
1 adult, Economy
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Find flight deals from Michigan to Illinois

Cheapest flights from Michigan to Illinois
Explore the most affordable flight options available from Michigan to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 20, 2025.

This United Airlines deal was found by Cheapflights users on 11/18. 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 12/249:12 amDTW - ORD
Nonstop1h 43mUnited Airlines
Thu 12/257:55 pmORD - DTW
Nonstop1h 35mUnited Airlines
Deal found 11/18$97
This Southwest deal was found by Cheapflights users on 11/20. 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 12/247:00 amDTW - MDW
Nonstop1h 25mSouthwest
Wed 12/318:30 pmMDW - DTW
Nonstop1h 10mSouthwest
Deal found 11/20$97
This Delta deal was found by Cheapflights users on 11/19. 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.
Wed 12/248:25 amDTW - ORD
Nonstop1h 36mDelta
Wed 12/311:35 pmORD - DTW
Nonstop1h 34mDelta
Deal found 11/19$117
This Delta deal was found by Cheapflights users on 11/18. 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.
Wed 12/245:07 pmDTW - MDW
Nonstop1h 19mDelta
Wed 12/319:29 amMDW - DTW
Nonstop1h 14mDelta
Deal found 11/18$117
This United Airlines deal was found by Cheapflights users on 11/20. 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 12/249:12 amDTW - ORD
Nonstop1h 43mUnited Airlines
Wed 12/319:05 pmORD - DTW
Nonstop1h 33mUnited Airlines
Deal found 11/20$123
This Kiwi.com deal was found by Cheapflights users on 11/19. 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.
Fri 12/511:34 amDTW - MDW
1 stop10h 54mMultiple Airlines
Sun 12/77:44 amMDW - DTW
1 stop23h 00mMultiple Airlines
Deal found 11/19$139
This American Airlines deal was found by Cheapflights users on 11/20. 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 12/317:14 amORD - STL
Nonstop1h 34mAmerican Airlines
Tue 1/136:46 pmSTL - ORD
Nonstop1h 34mAmerican Airlines
Deal found 11/20$141
This Frontier deal was found by Cheapflights users on 11/18. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1810:56 amDTW - ORD
1 stop8h 56mFrontier
Sun 12/216:10 amORD - DTW
1 stop10h 23mFrontier
Deal found 11/18$144
This United Airlines deal was found by Cheapflights users on 11/19. 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 12/307:20 amGRR - ORD
Nonstop1h 19mUnited Airlines
Wed 12/313:38 pmORD - GRR
Nonstop1h 11mUnited Airlines
Deal found 11/19$147
This Kiwi.com deal was found by Cheapflights users on 11/19. 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.
Thu 12/117:23 pmMDW - STL
1 stop14h 24mFrontier
Sun 12/1410:42 amSTL - MDW
1 stop23h 10mFrontier
Deal found 11/19$147
This Kiwi.com deal was found by Cheapflights users on 11/20. 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 12/95:15 pmDTW - ORD
1 stop5h 56mMultiple Airlines
Thu 12/116:15 amORD - DTW
1 stop14h 26mMultiple Airlines
Deal found 11/20$147
This Southwest deal was found by Cheapflights users on 11/18. 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 12/1012:55 pmDTW - MDW
Nonstop1h 10mSouthwest
Wed 12/3110:00 amMDW - DTW
Nonstop1h 20mSouthwest
Deal found 11/18$147

Cheap flight deals from Michigan to Illinois

Keep the following information in mind while searching for Michigan to Illinois flight deals. Data was last updated November 20, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$97
(United Airlines)

One-way from

$49
(Southwest)

Popular in

June

Cheapest in

April

Average price

$253

Good round-trip deal

$249 or less

Good one-way deal

$79 or less
Provider with most accurate pricing for Detroit (DTT)-Chicago (CHI) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Detroit (DTT)-Chicago (CHI) flights.
Search Deals
From Michigan to Illinois
Search Deals
One-way flight from Michigan to Illinois
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($63 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals
Price to beat on a round-trip flight from Michigan to Illinois.
Search Deals
Price to beat on a one-way flight from Michigan to Illinois.
Search Deals

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated November 20, 2025.
Use the filters below to find and compare flights from Michigan to Illinois that are best for you.

Fly from

Michigan

Fly to

Illinois

Route

Depart

Return

Price

DetroitChicago

DTW - ORD

DTWORD

Detroit Metropolitan Wayne County

Sun 1/18

8:38 pm-9:05 pm

Nonstop1h 27m

Chicago O'Hare Intl

Tue 1/20

10:35 am-12:56 pm

Nonstop1h 21m

$117

DetroitChicago

DTW - ORD

DTWORD

Detroit Metropolitan Wayne County

Wed 12/24

8:25 am-9:01 am

Nonstop1h 36m

Chicago O'Hare Intl

Wed 12/31

1:35 pm-4:09 pm

Nonstop1h 34m

$117

DetroitChicago

DTW - MDW

DTWMDW

Detroit Metropolitan Wayne County

Wed 12/24

8:25 am-8:49 am

Nonstop1h 24m

Chicago Midway

Thu 12/25

9:29 am-11:43 am

Nonstop1h 14m

$117

DetroitChicago

DTW - MDW

DTWMDW

Detroit Metropolitan Wayne County

Wed 12/24

5:07 pm-5:26 pm

Nonstop1h 19m

Chicago Midway

Wed 12/31

6:08 pm-8:28 pm

Nonstop1h 20m

$117

DetroitChicago

DTW - MDW

DTWMDW

Detroit Metropolitan Wayne County

Wed 12/31

5:07 pm-5:26 pm

Nonstop1h 19m

Chicago Midway

Thu 1/1

6:08 pm-8:28 pm

Nonstop1h 20m

$117

DetroitChicago

DTW - ORD

DTWORD

Detroit Metropolitan Wayne County

Wed 12/24

9:12 am-9:55 am

Nonstop1h 43m

Chicago O'Hare Intl

Wed 12/31

9:05 pm-11:38 pm

Nonstop1h 33m

$123

ChicagoSt. Louis

MDW - STL

MDWSTL

Chicago Midway

Thu 1/15

12:30 pm-1:45 pm

Nonstop1h 15m

Lambert-St Louis

Sun 1/18

6:05 am-7:15 am

Nonstop1h 10m

$138

DetroitChicago

DTW - ORD

DTWORD

Detroit Metropolitan Wayne County

Thu 12/18

10:56 am-6:52 pm

1 stop8h 56m

Chicago O'Hare Intl

Sun 12/21

6:00 am-6:09 pm

1 stop11h 09m

$144

DetroitChicago

DTW - ORD

DTWORD

Detroit Metropolitan Wayne County

Wed 1/7

6:15 am-12:39 pm

1 stop7h 24m

Chicago O'Hare Intl

Thu 1/8

10:39 am-11:41 pm

1 stop12h 02m

$146

ChicagoSt. Louis

MDW - STL

MDWSTL

Chicago Midway

Thu 1/1

8:25 am-9:40 am

Nonstop1h 15m

Lambert-St Louis

Mon 1/5

2:30 pm-3:40 pm

Nonstop1h 10m

$147

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/19

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

Have a flexible travel schedule? Discover the best time to fly to Illinois from Michigan 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 Michigan to Illinois

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

Currently, November is the cheapest month in which you can book a flight from Michigan to Illinois (average of $76). Flying from Michigan to Illinois 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 MI to IL?

Find hourly flight availability from Michigan to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 20, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 15% on flights from Michigan to Illinois by exploring options for tickets in the afternoon.

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

Use this chart to determine the cheapest time to fly round-trip from Michigan to Illinois. Price data was last updated on November 18, 2024.

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

Weekly flight availability from Michigan to Illinois

Explore weekly flight availability from Michigan to Illinois. 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 20, 2025.

The most flights from USMI to USIL are scheduled on a Thursday (75 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (42 on average).

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated November 20, 2025.
See what other customers who have flown with Denver Air Connection, Southwest, and Delta from Michigan to Illinois have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Denver Air Connection
8.7
Very good

Boarding

8.7

Entertainment

8.1

Crew

9.4

Overall

8.7

Comfort

8.9

Food

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

Boarding

8.7

Entertainment

8.1

Crew

9.4

Overall

8.7

Comfort

8.9

Food

8.4
Southwest
8.0
Very good
4,251 reviews
Denver Air Connection
8.7
Very good

Boarding

8.7

Entertainment

8.1

Crew

9.4

Overall

8.7

Comfort

8.9

Food

8.4
Delta
7.9
Good
8,002 reviews
Denver Air Connection
8.7
Very good

Boarding

8.7

Entertainment

8.1

Crew

9.4

Overall

8.7

Comfort

8.9

Food

8.4
United Airlines
7.4
Good
9,029 reviews
Denver Air Connection
8.7
Very good

Boarding

8.7

Entertainment

8.1

Crew

9.4

Overall

8.7

Comfort

8.9

Food

8.4
American Airlines
7.2
Good
11,047 reviews
Denver Air Connection
8.7
Very good

Boarding

8.7

Entertainment

8.1

Crew

9.4

Overall

8.7

Comfort

8.9

Food

8.4

Related info for your journey

Find useful and relevant information for your journey from Michigan to Illinois. 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 Michigan to Illinois?

    There are many flights that can get you from Michigan to Illinois in 1h 15m. Fly via Delta, United Airlines, or Southwest to get the fastest option. The distance between Michigan and Illinois is about 251 mi. Most flights are nonstop.

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

    To fly one-way, consider booking your trip with American Airlines, which is currently one of the cheapest options available, starting at $49. Southwest flights start at $49 while deals on United Airlines start at $49 one-way.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Michigan to Illinois 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 Michigan to Illinois?

    Currently, November is the cheapest month in which you can book a flight from Michigan to Illinois (average of $76). Flying from Michigan to Illinois 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 Michigan to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Michigan to Illinois

Discover the top 4 airlines that operate flights from Michigan to Illinois. 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 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$91Average$336FlexibilityNo cancel feeOn-time71%
DeltaCheapest$97Average$287FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$97Average$299FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$97Average$251FlexibilityNo cancel feeOn-time63%

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