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$54+ 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 12/18. Fares are subject to change and may not be available on all flights or dates of travel.
DTW — ORD
Nov 26 — Dec 31
Tue 11/26
Tue 12/3
1 adult, Economy
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Cheap flight deals from Michigan to Illinois

Discover tips and strategies to find the most affordable flight options for your journey from Michigan (USMI) to Illinois (USIL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 21, 2024.

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 21, 2024.

This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/910:33 amDTW - MDW
1 stop7h 49mFrontier
Mon 12/1612:36 pmMDW - DTW
1 stop7h 21mFrontier
Deal found 11/20$108
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/129:25 pmORD - STL
1 stop14h 05mSouthern / Mokulele
Mon 12/162:00 pmSTL - ORD
1 stop26h 10mSouthern / Mokulele
Deal found 11/19$110
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/175:37 pmDTW - ORD
1 stop6h 22mSpirit Airlines
Wed 12/188:14 pmORD - DTW
1 stop11h 17mSpirit Airlines
Deal found 11/19$115
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/148:58 pmDTW - ORD
1 stop9h 32mMultiple Airlines
Mon 12/166:07 pmORD - DTW
1 stop12h 48mMultiple Airlines
Deal found 11/20$123
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/910:34 amDTW - ORD
1 stop11h 36mFrontier
Mon 12/166:07 pmORD - DTW
1 stop12h 48mFrontier
Deal found 11/20$128
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 12/1812:27 pmGRR - ORD
Nonstop1h 13mAmerican Airlines
Wed 12/188:55 pmORD - GRR
Nonstop0h 58mAmerican Airlines
Deal found 11/20$137
This Delta deal was found by Cheapflights users on 11/21. 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 12/117:55 pmDTW - ORD
Nonstop1h 33mDelta
Wed 12/187:05 amORD - DTW
Nonstop1h 25mDelta
Deal found 11/21$137
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/188:35 amDTW - MDW
Nonstop1h 23mDelta
Wed 12/259:30 amMDW - DTW
Nonstop1h 12mDelta
Deal found 11/20$137
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.
Tue 12/103:05 pmORD - STL
Nonstop1h 16mAmerican Airlines
Wed 12/115:45 amSTL - ORD
Nonstop1h 27mAmerican Airlines
Deal found 11/20$137
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 12/117:25 amDTW - ORD
Nonstop1h 40mUnited Airlines
Thu 12/127:35 pmORD - DTW
Nonstop1h 35mUnited Airlines
Deal found 11/20$142
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/117:25 pmMDW - STL
Nonstop1h 15mSouthwest
Thu 12/126:30 amSTL - MDW
Nonstop1h 10mSouthwest
Deal found 11/19$143
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.
Fri 12/137:00 amDTW - MDW
Nonstop1h 20mSouthwest
Mon 12/169:55 amMDW - DTW
Nonstop1h 10mSouthwest
Deal found 11/20$148

Find flights from Michigan to Illinois within your budget

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 2,629,791 searches. Data last updated November 21, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

ChicagoSt. Louis

ORD - STL

ORDSTL

Chicago O'Hare Intl

Sat 1/4

8:20 pm-11:45 am

1 stop15h 25m

Lambert-St Louis

Sat 1/11

12:15 pm-7:40 am

1 stop19h 25m

$104

DetroitChicago

DTW - MDW

DTWMDW

Detroit Metropolitan Wayne County

Mon 12/9

10:33 am-5:22 pm

1 stop7h 49m

Chicago Midway

Mon 12/16

12:36 pm-8:57 pm

1 stop7h 21m

$108

DetroitChicago

DTW - ORD

DTWORD

Detroit Metropolitan Wayne County

Tue 12/17

5:37 pm-10:59 pm

1 stop6h 22m

Chicago O'Hare Intl

Wed 12/18

8:14 pm-8:31 am

1 stop11h 17m

$115

DetroitChicago

DTW - ORD

DTWORD

Detroit Metropolitan Wayne County

Thu 1/23

12:48 pm-11:44 pm

1 stop11h 56m

Chicago O'Hare Intl

Sun 1/26

7:00 am-6:59 pm

1 stop10h 59m

$118

DetroitChicago

DTW - ORD

DTWORD

Detroit Metropolitan Wayne County

Sat 12/14

8:58 pm-5:30 am

1 stop9h 32m

Chicago O'Hare Intl

Mon 12/16

6:07 pm-7:55 am

1 stop12h 48m

$123

Grand RapidsChicago

GRR - ORD

GRRORD

Grand Rapids Gerald R. Ford Intl

Wed 12/18

12:27 pm-12:40 pm

Nonstop1h 13m

Chicago O'Hare Intl

Wed 12/18

8:55 pm-10:53 pm

Nonstop0h 58m

$137

DetroitChicago

DTW - ORD

DTWORD

Detroit Metropolitan Wayne County

Wed 12/11

7:55 pm-8:28 pm

Nonstop1h 33m

Chicago O'Hare Intl

Wed 12/18

7:05 am-9:30 am

Nonstop1h 25m

$137

DetroitChicago

DTW - MDW

DTWMDW

Detroit Metropolitan Wayne County

Wed 12/18

8:35 am-8:58 am

Nonstop1h 23m

Chicago Midway

Wed 12/25

9:30 am-11:42 am

Nonstop1h 12m

$137

ChicagoSt. Louis

ORD - STL

ORDSTL

Chicago O'Hare Intl

Tue 12/10

3:05 pm-4:21 pm

Nonstop1h 16m

Lambert-St Louis

Wed 12/11

5:45 am-7:12 am

Nonstop1h 27m

$137

ChicagoSt. Louis

MDW - STL

MDWSTL

Chicago Midway

Tue 1/7

4:10 pm-5:25 pm

Nonstop1h 15m

Lambert-St Louis

Tue 1/21

10:20 am-11:30 am

Nonstop1h 10m

$138

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/21

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.

Travel insights for flights from Michigan to Illinois

Get recent, data-driven insights about flights from Michigan to Illinois including ideal travel times, pricing trends, and more.

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

Currently, September is the cheapest month in which you can book a flight from Michigan to Illinois (average of $232). Flying from Michigan to Illinois in June is currently the most expensive (average of $308). 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 21, 2024.

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 November 21, 2024.

The most flights from USMI to USIL are scheduled on a Monday (76 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (25 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 November 21, 2024.
Peruse reviews from past customers who have flown with Spirit Airlines, American Airlines 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.
Southwest
8.1
Very good
5,015 reviews

Boarding

8.2

Overall

8.1

Crew

8.7

Comfort

8.1

Entertainment

7.7

Food

7.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Southwest
8.1
Very good
5,015 reviews
Southwest
8.1
Very good
5,015 reviews

Boarding

8.2

Overall

8.1

Crew

8.7

Comfort

8.1

Entertainment

7.7

Food

7.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Alaska Airlines
8.0
Very good
9,458 reviews
Southwest
8.1
Very good
5,015 reviews

Boarding

8.2

Overall

8.1

Crew

8.7

Comfort

8.1

Entertainment

7.7

Food

7.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Delta
8.0
Very good
8,759 reviews
Southwest
8.1
Very good
5,015 reviews

Boarding

8.2

Overall

8.1

Crew

8.7

Comfort

8.1

Entertainment

7.7

Food

7.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

JetBlue
7.5
Good
3,395 reviews
Southwest
8.1
Very good
5,015 reviews

Boarding

8.2

Overall

8.1

Crew

8.7

Comfort

8.1

Entertainment

7.7

Food

7.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

United Airlines
7.4
Good
9,173 reviews
Southwest
8.1
Very good
5,015 reviews

Boarding

8.2

Overall

8.1

Crew

8.7

Comfort

8.1

Entertainment

7.7

Food

7.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

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 Frontier, which is currently one of the cheapest options available, starting at $54. Spirit Airlines flights start at $58 while deals on Southern / Mokulele start at $60 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, September is the cheapest month in which you can book a flight from Michigan to Illinois (average of $232). Flying from Michigan to Illinois in June is currently the most expensive (average of $308). 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 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 2,629,791 searches. Data last updated November 21, 2024.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$38Average$81FlexibilityNo cancel feeOn-time65%
DeltaCheapest$96Average$249FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$96Average$328FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$101Average$352FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$128Average$218FlexibilityNo cancel feeOn-time63%
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