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Illinois

$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 5/19. Fares are subject to change and may not be available on all flights or dates of travel.
DTW — ORD
Apr 22 — Apr 291
Tue 4/22
Tue 4/29
1 adult, Economy
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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 April 17, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$97
(American Airlines)

One-way from

$49
(United Airlines)

Popular in

December

Cheapest in

October

Average price

$161

Good round-trip deal

$115 or less

Good one-way deal

$64 or less
Provider with most accurate pricing for Detroit (DTT)-Chicago (CHI) flight deals.
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Provider most trusted by Cheapflights users for Detroit (DTT)-Chicago (CHI) flights.
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From Michigan to Illinois
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One-way flight from Michigan to Illinois
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Highest demand for flights based on searches. 22% potential increase in price ($57 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Price to beat on a round-trip flight from Michigan to Illinois.
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Price to beat on a one-way flight from Michigan to Illinois.
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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 April 17, 2025.

This American Airlines deal was found by Cheapflights users on 4/17. 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 8/146:00 amGRR - ORD
Nonstop1h 05mAmerican Airlines
Mon 8/187:21 amORD - GRR
Nonstop1h 12mAmerican Airlines
Deal found 4/17$97
This Southwest deal was found by Cheapflights users on 4/16. 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 5/1410:35 amMDW - STL
Nonstop1h 15mSouthwest
Thu 5/155:35 amSTL - MDW
Nonstop1h 10mSouthwest
Deal found 4/16$97
This Delta deal was found by Cheapflights users on 4/16. 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 5/147:30 amDTW - ORD
Nonstop1h 19mDelta
Thu 5/151:45 pmORD - DTW
Nonstop1h 25mDelta
Deal found 4/16$97
This Delta deal was found by Cheapflights users on 4/16. 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 5/148:25 amDTW - MDW
Nonstop1h 15mDelta
Wed 5/219:16 amMDW - DTW
Nonstop1h 10mDelta
Deal found 4/16$97
This American Airlines deal was found by Cheapflights users on 4/17. 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 5/810:30 pmORD - STL
Nonstop1h 21mAmerican Airlines
Mon 5/125:00 amSTL - ORD
Nonstop1h 19mAmerican Airlines
Deal found 4/17$97
This Southwest deal was found by Cheapflights users on 4/17. 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 5/281:30 pmDTW - MDW
1 stop7h 20mSouthwest
Thu 5/296:55 pmMDW - DTW
Nonstop1h 05mSouthwest
Deal found 4/17$107
This United Airlines deal was found by Cheapflights users on 4/17. 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 5/277:30 amGRR - ORD
Nonstop1h 08mUnited Airlines
Thu 5/297:00 amORD - GRR
Nonstop1h 07mUnited Airlines
Deal found 4/17$115
This Southwest deal was found by Cheapflights users on 4/16. 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 5/135:55 amDTW - ORD
1 stop6h 55mSouthwest
Wed 5/144:00 pmORD - DTW
1 stop4h 10mSouthwest
Deal found 4/16$117
This Mytrip deal was found by Cheapflights users on 4/16. 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.
Sat 5/179:09 pmDTW - ORD
1 stop12h 46mSpirit Airlines
Mon 5/1910:00 amORD - DTW
1 stop20h 35mSpirit Airlines
Deal found 4/16$136
This United Airlines deal was found by Cheapflights users on 4/16. 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.
Sat 5/246:00 amDTW - ORD
Nonstop1h 30mUnited Airlines
Mon 5/2610:50 amORD - DTW
Nonstop1h 32mUnited Airlines
Deal found 4/16$138
This Southern / Mokulele deal was found by Cheapflights users on 4/16. 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 Southern / Mokulele is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/88:25 amORD - STL
1 stop11h 45mSouthern / Mokulele
Sat 5/1012:15 pmSTL - ORD
1 stop19h 25mSouthern / Mokulele
Deal found 4/16$140
This Southwest deal was found by Cheapflights users on 4/17. 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 5/131:30 pmORD - STL
1 stop7h 45mSouthwest
Wed 5/285:20 amSTL - ORD
1 stop5h 25mSouthwest
Deal found 4/17$147

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 April 17, 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

Grand RapidsChicago

GRR - ORD

GRRORD

Grand Rapids Gerald R. Ford Intl

Thu 8/14

6:00 am-6:05 am

Nonstop1h 05m

Chicago O'Hare Intl

Mon 8/18

7:21 am-9:33 am

Nonstop1h 12m

$97

ChicagoSt. Louis

MDW - STL

MDWSTL

Chicago Midway

Wed 5/14

10:35 am-11:50 am

Nonstop1h 15m

Lambert-St Louis

Thu 5/15

5:35 am-6:45 am

Nonstop1h 10m

$97

DetroitChicago

DTW - ORD

DTWORD

Detroit Metropolitan Wayne County

Wed 5/14

7:30 am-7:49 am

Nonstop1h 19m

Chicago O'Hare Intl

Thu 5/15

1:45 pm-4:10 pm

Nonstop1h 25m

$97

DetroitChicago

DTW - MDW

DTWMDW

Detroit Metropolitan Wayne County

Wed 5/14

8:25 am-8:40 am

Nonstop1h 15m

Chicago Midway

Thu 5/15

9:16 am-11:26 am

Nonstop1h 10m

$97

ChicagoSt. Louis

ORD - STL

ORDSTL

Chicago O'Hare Intl

Thu 5/8

10:30 pm-11:51 pm

Nonstop1h 21m

Lambert-St Louis

Mon 5/12

5:00 am-6:19 am

Nonstop1h 19m

$97

DetroitChicago

DTW - MDW

DTWMDW

Detroit Metropolitan Wayne County

Tue 5/13

6:30 pm-11:10 pm

1 stop5h 40m

Chicago Midway

Wed 5/14

6:35 pm-8:40 pm

Nonstop1h 05m

$107

Grand RapidsChicago

GRR - ORD

GRRORD

Grand Rapids Gerald R. Ford Intl

Tue 5/27

7:30 am-7:38 am

Nonstop1h 08m

Chicago O'Hare Intl

Thu 5/29

7:00 am-9:07 am

Nonstop1h 07m

$115

DetroitChicago

DTW - ORD

DTWORD

Detroit Metropolitan Wayne County

Tue 5/13

5:55 am-11:50 am

1 stop6h 55m

Chicago O'Hare Intl

Wed 5/14

4:00 pm-9:10 pm

1 stop4h 10m

$117

ChicagoSt. Louis

ORD - STL

ORDSTL

Chicago O'Hare Intl

Tue 6/3

5:45 pm-11:00 pm

1 stop5h 15m

Lambert-St Louis

Wed 6/4

5:20 am-10:45 am

1 stop5h 25m

$117

DetroitChicago

DTW - ORD

DTWORD

Detroit Metropolitan Wayne County

Sat 5/17

9:09 pm-8:55 am

1 stop12h 46m

Chicago O'Hare Intl

Mon 5/19

10:00 am-7:35 am

1 stop20h 35m

$136

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/17

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, August is the cheapest month in which you can book a flight from Michigan to Illinois (average of $245). Flying from Michigan to Illinois in March is currently the most expensive (average of $321). 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 April 17, 2025.

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

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 April 17, 2025.

The most flights from USMI to USIL are scheduled on a Thursday (89 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (26 on average).

Rainfall in Illinois by month

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

In terms of precipitation, rainfall in Illinois ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.

Temperature in Illinois by month

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

If weather is an important factor for your trip to Illinois, 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 23.0 F).

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 April 17, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest and Delta from Michigan to Illinois to help guide your decision. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,887 reviews

Food

7.1

Boarding

8.1

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Alaska Airlines
8.0
Very good
9,887 reviews
Alaska Airlines
8.0
Very good
9,887 reviews

Food

7.1

Boarding

8.1

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Southwest
8.0
Very good
4,280 reviews
Alaska Airlines
8.0
Very good
9,887 reviews

Food

7.1

Boarding

8.1

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Delta
8.0
Very good
7,916 reviews
Alaska Airlines
8.0
Very good
9,887 reviews

Food

7.1

Boarding

8.1

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
United Airlines
7.4
Good
8,667 reviews
Alaska Airlines
8.0
Very good
9,887 reviews

Food

7.1

Boarding

8.1

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,887 reviews

Food

7.1

Boarding

8.1

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

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.

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

    To fly one-way, consider booking your trip with United Airlines, which is currently one of the cheapest options available, starting at $49. Southwest flights start at $49 while deals on Delta 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, August is the cheapest month in which you can book a flight from Michigan to Illinois (average of $245). Flying from Michigan to Illinois in March is currently the most expensive (average of $321). 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

Browse thousands of different options on Cheapflights for your next trip

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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 5 airlines flying from Michigan to Illinois

Discover the top 5 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 April 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$38Average$81FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$96Average$321FlexibilityNo cancel feeOn-time69%
DeltaCheapest$97Average$234FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$106Average$389FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$127Average$220FlexibilityNo cancel feeOn-time63%

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