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$46+ Cheap flights from St. Louis (STL) 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 10/29. Fares are subject to change and may not be available on all flights or dates of travel.
STL — DTW
Aug 23 — Aug 301
Sat 8/23
Sat 8/30
1 adult, Economy
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Cheap flight deals from St. Louis to Michigan

Keep the following information in mind while searching for St. Louis to Michigan flight deals. Data was last updated August 18, 2025.

Round-trip from

$87
(Southwest)

One-way from

$46
(American Airlines)

Popular in

November

Cheapest in

July

Average price

$159

Good round-trip deal

$166 or less

Good one-way deal

$94 or less
From Lambert-St Louis to Michigan
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One-way flight from Lambert-St Louis to Michigan
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Highest demand for flights based on searches. 15% potential increase in price ($54 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Price to beat on a round-trip flight from Lambert-St Louis to Michigan.
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Price to beat on a one-way flight from Lambert-St Louis to Michigan.
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Find flight deals from St. Louis to Michigan

Cheapest flights from St. Louis to Michigan
Explore the most affordable flight options available from St. Louis to Michigan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 18, 2025.

This Southwest deal was found by Cheapflights users on 8/18. 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.
Tue 9/165:50 pmSTL - MDW
1 stop4h 35mSouthwest
Wed 10/155:45 amMDW - STL
Nonstop1h 10mSouthwest
Deal found 8/18$87
This American Airlines deal was found by Cheapflights users on 8/17. 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.
Wed 9/107:23 amSTL - ORD
Nonstop1h 22mAmerican Airlines
Wed 9/108:31 pmORD - STL
Nonstop1h 22mAmerican Airlines
Deal found 8/17$91
This American Airlines deal was found by Cheapflights users on 8/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/306:10 amSTL - ORD
Nonstop1h 20mAmerican Airlines
Tue 10/76:45 amORD - STL
Nonstop1h 24mAmerican Airlines
Deal found 8/16$92
This Southwest deal was found by Cheapflights users on 8/17. 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 9/164:35 pmSTL - ORD
1 stop4h 55mSouthwest
Tue 9/237:30 amORD - STL
1 stop7h 00mSouthwest
Deal found 8/17$97
This American Airlines deal was found by Cheapflights users on 8/17. 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.
Sat 9/137:23 amSTL - ORD
Nonstop1h 22mAmerican Airlines
Tue 9/167:10 pmORD - STL
Nonstop1h 22mAmerican Airlines
Deal found 8/17$104
This Southwest deal was found by Cheapflights users on 8/17. 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 9/172:05 pmSTL - MDW
Nonstop1h 05mSouthwest
Sat 9/207:00 amMDW - STL
1 stop7h 45mSouthwest
Deal found 8/17$107
This American Airlines deal was found by Cheapflights users on 8/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/157:16 amSTL - ORD
Nonstop1h 27mAmerican Airlines
Thu 10/1610:34 pmORD - STL
Nonstop1h 20mAmerican Airlines
Deal found 8/16$107
This Southwest deal was found by Cheapflights users on 8/15. 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 9/910:45 amSTL - MDW
2 stops6h 00mSouthwest
Sat 9/137:40 pmMDW - STL
Nonstop1h 10mSouthwest
Deal found 8/15$112
This Southwest deal was found by Cheapflights users on 8/18. 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.
Thu 9/117:20 pmSTL - MDW
Nonstop1h 05mSouthwest
Mon 9/156:05 pmMDW - STL
Nonstop1h 15mSouthwest
Deal found 8/18$117
This Southwest deal was found by Cheapflights users on 8/17. 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 9/176:25 amSTL - ORD
1 stop6h 20mSouthwest
Sat 9/202:55 pmORD - STL
1 stop5h 35mSouthwest
Deal found 8/17$117
This American Airlines deal was found by Cheapflights users on 8/18. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/117:23 amSTL - ORD
Nonstop1h 22mAmerican Airlines
Mon 9/156:59 pmORD - STL
Nonstop1h 26mAmerican Airlines
Deal found 8/18$118
This FlightHub deal was found by Cheapflights users on 8/17. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/292:30 pmSTL - DTW
Nonstop1h 30mSpirit Airlines
Sun 8/311:00 pmDTW - STL
Nonstop1h 32mSpirit Airlines
Deal found 8/17$128

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis 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 August 18, 2025.
Use the filters below to find and compare flights from St. Louis to Michigan that are best for you.

Fly from

St. Louis

Fly to

Michigan

Route

Depart

Return

Price

St. LouisChicago

STL - MDW

STLMDW

Lambert-St Louis

Tue 9/16

1:20 pm-5:05 pm

1 stop3h 45m

Chicago Midway

Tue 9/23

8:25 pm-9:40 pm

Nonstop1h 15m

$87

St. LouisChicago

STL - MDW

STLMDW

Lambert-St Louis

Wed 9/17

2:05 pm-3:10 pm

Nonstop1h 05m

Chicago Midway

Wed 9/24

8:30 am-1:40 pm

1 stop5h 10m

$87

St. LouisChicago

STL - MDW

STLMDW

Lambert-St Louis

Tue 9/16

2:25 pm-7:15 pm

1 stop4h 50m

Chicago Midway

Wed 10/15

5:45 am-6:55 am

Nonstop1h 10m

$87

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Wed 9/10

6:10 am-7:30 am

Nonstop1h 20m

Chicago O'Hare Intl

Wed 9/10

7:10 pm-8:32 pm

Nonstop1h 22m

$91

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Wed 9/17

6:10 am-7:30 am

Nonstop1h 20m

Chicago O'Hare Intl

Wed 9/24

7:10 pm-8:32 pm

Nonstop1h 22m

$91

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Tue 9/30

7:23 am-8:45 am

Nonstop1h 22m

Chicago O'Hare Intl

Tue 10/7

10:34 pm-11:54 pm

Nonstop1h 20m

$91

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Tue 11/4

6:00 am-7:30 am

Nonstop1h 30m

Chicago O'Hare Intl

Wed 11/19

3:23 pm-4:47 pm

Nonstop1h 24m

$91

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Tue 9/16

6:10 am-7:30 am

Nonstop1h 20m

Chicago O'Hare Intl

Tue 9/23

8:00 am-9:26 am

Nonstop1h 26m

$91

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Wed 10/1

6:10 am-7:30 am

Nonstop1h 20m

Chicago O'Hare Intl

Wed 10/8

6:53 pm-8:26 pm

Nonstop1h 33m

$92

St. LouisChicago

STL - MDW

STLMDW

Lambert-St Louis

Wed 9/17

7:10 am-8:20 am

Nonstop1h 10m

Chicago Midway

Sat 9/20

7:40 pm-8:50 pm

Nonstop1h 10m

$97

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/16

Showing 1-10 of 60 results
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Best time to book a flight from St. Louis to Michigan

Have a flexible travel schedule? Discover the best time to fly to Michigan from St. Louis 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 St. Louis to Michigan

What is the cheapest month to book a flight from St. Louis to Michigan?

Currently, April is the cheapest month in which you can book a flight from St. Louis to Michigan (average of $257). Flying from St. Louis 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 STL to MI?

Find hourly flight availability from St. Louis 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 August 18, 2025.

When flying from St. Louis to Michigan, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from St. Louis to Michigan

Explore weekly flight availability from St. Louis 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 August 18, 2025.

The most flights from STL to USMI are scheduled on a Monday (19 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (12 on average).

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 August 18, 2025.
Get a feel of what it's like to fly with Southwest, Delta, and United Airlines from St. Louis to Michigan by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,246 reviews

Crew

8.6

Boarding

8.1

Comfort

8.0

Food

7.0

Overall

8.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,246 reviews
Southwest
8.0
Very good
4,246 reviews

Crew

8.6

Boarding

8.1

Comfort

8.0

Food

7.0

Overall

8.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Delta
8.0
Very good
7,981 reviews
Southwest
8.0
Very good
4,246 reviews

Crew

8.6

Boarding

8.1

Comfort

8.0

Food

7.0

Overall

8.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
United Airlines
7.4
Good
8,925 reviews
Southwest
8.0
Very good
4,246 reviews

Crew

8.6

Boarding

8.1

Comfort

8.0

Food

7.0

Overall

8.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,246 reviews

Crew

8.6

Boarding

8.1

Comfort

8.0

Food

7.0

Overall

8.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Spirit Airlines
6.3
Okay
8,038 reviews
Southwest
8.0
Very good
4,246 reviews

Crew

8.6

Boarding

8.1

Comfort

8.0

Food

7.0

Overall

8.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Michigan. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from St. Louis to Michigan?

    For a flight from St. Louis to Michigan, you will be flying from Lambert-St Louis. Lambert-St Louis (STL) is just 12.7 mi from the center of the city.

  • How long is the flight from St. Louis to Michigan?

    Airlines like Southwest, American Airlines, and Spirit Airlines fly from St. Louis to Michigan in about 1h 20m. The time it takes to get you to your destination can typically vary by up to 2h 25m. There are 258 mi between St. Louis and Michigan. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from St. Louis to Michigan one-way?

    The cheapest airlines for a one-way flight from St. Louis to Michigan are American Airlines ($46), Southwest ($49), and Spirit Airlines ($53).

  • What are the most popular routes from St. Louis to Michigan?

    The most popular route from St. Louis to Michigan is Lambert-St Louis - Chicago O'Hare Intl. You may also consider Lambert-St Louis - Chicago Midway or Lambert-St Louis - Detroit Metropolitan Wayne County.

  • What are the most reliable airlines from St. Louis to Michigan?

    Consider SkyWest Airlines (100%), Endeavor Airlines (100%) or Korean Air (95%) when booking your flight. These represent the most reliable airlines when flying from St. Louis to Michigan.

  • What are the cheapest flights from St. Louis to Michigan?

    The cheapest flight price from St. Louis to Michigan is $55. On average you can expect to pay $266. The most popular route, (Lambert-St Louis - Chicago O'Hare Intl), can usually be booked for $117.

  • Can I find deals for flights from St. Louis to Michigan that include hotel bookings?

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

  • How can I find direct flights from St. Louis to Michigan?

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

  • Can I find deals for business class flights from St. Louis to Michigan?

    Yes. Cheapflights offers flight deals from St. Louis 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 St. Louis to Michigan?

    Currently, April is the cheapest month in which you can book a flight from St. Louis to Michigan (average of $257). Flying from St. Louis 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.

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Alternative routes for St. Louis 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 St. Louis to Michigan

Discover the top 5 airlines that operate flights from St. Louis 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 August 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$38Average$78FlexibilityNo cancel feeOn-time65%
SouthwestCheapest$119Average$316FlexibilityNo cancel feeOn-time63%
DeltaCheapest$135Average$402FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$182Average$333FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$216Average$476FlexibilityNo cancel feeOn-time69%

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