Illinois

$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 4/28. Fares are subject to change and may not be available on all flights or dates of travel.
DTW — ORD
ene. 25 — feb. 11
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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 enero 20, 2025.

Round-trip from

$125
(Flightnetwork)

One-way from

$54
(Trip.com)
From Michigan to Illinois
One-way flight from Michigan to Illinois

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 enero 20, 2025.

This Flightnetwork deal was found by Cheapflights users on 1/19. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 2/138:20 pmORD - STL
1 stop15h 25mSouthern / Mokulele
dom. 2/1612:15 pmSTL - ORD
1 stop19h 25mSouthern / Mokulele
Deal found 1/19$125
This FlightHub deal was found by Cheapflights users on 1/19. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 2/29:14 pmDTW - STL
1 stop13h 02mFrontier
mar. 2/45:05 pmSTL - DTW
1 stop19h 56mFrontier
Deal found 1/19$130
This CheapOair deal was found by Cheapflights users on 1/20. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 2/126:25 amDTW - ORD
1 stop7h 12mSpirit Airlines
jue. 2/1312:48 pmORD - DTW
1 stop6h 15mSpirit Airlines
Deal found 1/20$136
This CheapOair deal was found by Cheapflights users on 1/19. 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.
lun. 2/38:47 amDTW - ORD
1 stop8h 36mMultiple Airlines
mar. 2/47:00 amORD - DTW
1 stop6h 58mMultiple Airlines
Deal found 1/19$138
This CheapOair deal was found by Cheapflights users on 1/19. 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.
mié. 2/268:20 pmORD - STL
1 stop15h 25mMultiple Airlines
sáb. 3/18:52 pmSTL - ORD
1 stop8h 13mMultiple Airlines
Deal found 1/19$138
This Frontier deal was found by Cheapflights users on 1/19. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 2/212:48 pmDTW - MDW
1 stop10h 34mFrontier
lun. 2/37:15 amMDW - DTW
1 stop11h 59mFrontier
Deal found 1/19$140
This Frontier deal was found by Cheapflights users on 1/19. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 4/12:43 pmDTW - ORD
1 stop10h 32mFrontier
mar. 4/84:26 pmORD - DTW
1 stop11h 07mFrontier
Deal found 1/19$149
This Mytrip deal was found by Cheapflights users on 1/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 3/62:43 pmGRR - STL
1 stop10h 06mFrontier
lun. 3/105:24 pmSTL - GRR
1 stop14h 35mFrontier
Deal found 1/20$154
This CheapOair deal was found by Cheapflights users on 1/19. 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.
mar. 2/185:55 amDTW - STL
1 stop9h 47mMultiple Airlines
mar. 2/255:20 pmSTL - DTW
1 stop13h 42mMultiple Airlines
Deal found 1/19$166
This American Airlines deal was found by Cheapflights users on 1/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 2/146:40 amFNT - ORD
Nonstop1h 30mAmerican Airlines
lun. 2/171:10 pmORD - FNT
Nonstop1h 08mAmerican Airlines
Deal found 1/19$179
This American Airlines deal was found by Cheapflights users on 1/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 4/112:30 pmTVC - ORD
Nonstop1h 20mAmerican Airlines
mar. 4/86:50 pmORD - TVC
Nonstop1h 17mAmerican Airlines
Deal found 1/19$189
This Mytrip deal was found by Cheapflights users on 1/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 3/312:43 pmMDW - STL
1 stop11h 00mFrontier
lun. 3/1010:36 amSTL - MDW
1 stop8h 59mFrontier
Deal found 1/20$198

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 2,558,603 searches. Data last updated enero 20, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

ChicagoSt. Louis

ORD - STL

ORDSTL

Chicago O'Hare Intl

jue. 2/13

8:20 pm-11:45 am

1 stop15h 25m

Lambert-St Louis

dom. 2/16

12:15 pm-7:40 am

1 stop19h 25m

$125

DetroitSt. Louis

DTW - STL

DTWSTL

Detroit Metropolitan Wayne County

dom. 2/2

9:14 pm-9:16 am

1 stop13h 02m

Lambert-St Louis

mar. 2/4

5:05 pm-2:01 pm

1 stop19h 56m

$130

DetroitChicago

DTW - ORD

DTWORD

Detroit Metropolitan Wayne County

mié. 2/12

6:25 am-12:37 pm

1 stop7h 12m

Chicago O'Hare Intl

jue. 2/13

12:48 pm-8:03 pm

1 stop6h 15m

$136

DetroitChicago

DTW - ORD

DTWORD

Detroit Metropolitan Wayne County

lun. 2/3

8:47 am-4:23 pm

1 stop8h 36m

Chicago O'Hare Intl

mar. 2/4

7:00 am-2:58 pm

1 stop6h 58m

$138

ChicagoSt. Louis

ORD - STL

ORDSTL

Chicago O'Hare Intl

mié. 2/26

8:20 pm-11:45 am

1 stop15h 25m

Lambert-St Louis

sáb. 3/1

8:52 pm-5:05 am

1 stop8h 13m

$138

DetroitChicago

DTW - MDW

DTWMDW

Detroit Metropolitan Wayne County

dom. 2/2

12:48 pm-10:22 pm

1 stop10h 34m

Chicago Midway

lun. 2/3

7:15 am-8:14 pm

1 stop11h 59m

$140

DetroitChicago

DTW - ORD

DTWORD

Detroit Metropolitan Wayne County

mar. 4/1

2:43 pm-12:15 am

1 stop10h 32m

Chicago O'Hare Intl

mar. 4/8

4:26 pm-4:33 am

1 stop11h 07m

$149

Grand RapidsSt. Louis

GRR - STL

GRRSTL

Grand Rapids Gerald R. Ford Intl

jue. 3/6

2:43 pm-11:49 pm

1 stop10h 06m

Lambert-St Louis

lun. 3/10

5:24 pm-8:59 am

1 stop14h 35m

$154

DetroitSt. Louis

DTW - STL

DTWSTL

Detroit Metropolitan Wayne County

mié. 2/19

9:40 pm-2:42 pm

1 stop18h 02m

Lambert-St Louis

mié. 2/26

5:20 pm-5:51 pm

1 stop23h 31m

$163

FlintChicago

FNT - ORD

FNTORD

Flint Bishop

vie. 2/14

6:40 am-7:10 am

Nonstop1h 30m

Chicago O'Hare Intl

lun. 2/17

1:10 pm-3:18 pm

Nonstop1h 08m

$179

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

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, 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 $320). 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 enero 20, 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 enero 20, 2025.

The most flights from USMI to USIL are scheduled on a Monday (70 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (49 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 enero 20, 2025.
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.
8.1
Very good
4,659 reviews

Comfort

8.1

Entertainment

7.7

Food

7.2

Boarding

8.2

Overall

8.1

Crew

8.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

8.1
Very good
4,659 reviews
8.1
Very good
4,659 reviews

Comfort

8.1

Entertainment

7.7

Food

7.2

Boarding

8.2

Overall

8.1

Crew

8.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

8.0
Very good
9,696 reviews
8.1
Very good
4,659 reviews

Comfort

8.1

Entertainment

7.7

Food

7.2

Boarding

8.2

Overall

8.1

Crew

8.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

8.0
Very good
8,521 reviews
8.1
Very good
4,659 reviews

Comfort

8.1

Entertainment

7.7

Food

7.2

Boarding

8.2

Overall

8.1

Crew

8.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

7.4
Good
3,201 reviews
8.1
Very good
4,659 reviews

Comfort

8.1

Entertainment

7.7

Food

7.2

Boarding

8.2

Overall

8.1

Crew

8.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

7.4
Good
8,982 reviews
8.1
Very good
4,659 reviews

Comfort

8.1

Entertainment

7.7

Food

7.2

Boarding

8.2

Overall

8.1

Crew

8.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

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 $71 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 $320). 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.

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 enero 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$38Average$81FlexibilityNo cancel feeOn-time65%
DeltaCheapest$96Average$240FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$96Average$334FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$103Average$362FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$128Average$226FlexibilityNo cancel feeOn-time63%
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