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St. Louis

$31+ Cheap flights from Michigan to St. Louis (STL)

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 8/15. Fares are subject to change and may not be available on all flights or dates of travel.
DTW — STL
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
1 adult, Economy
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Cheap flight deals from Michigan to St. Louis

Keep the following information in mind while searching for Michigan to St. Louis flight deals. Data was last updated July 3, 2025.

Round-trip from

$61
(Booking.com)

One-way from

$31
(Flightnetwork)

Popular in

September

Cheapest in

June

Average price

$309

Good round-trip deal

$110 or less

Good one-way deal

$109 or less
From Michigan to Lambert-St Louis
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One-way flight from Michigan to Lambert-St Louis
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Highest demand for flights based on searches. 7% potential increase in price ($24 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from Michigan to Lambert-St Louis.
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Price to beat on a one-way flight from Michigan to Lambert-St Louis.
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Find flight deals from Michigan to St. Louis

Cheapest flights from Michigan to St. Louis
Explore the most affordable flight options available from Michigan to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

This Booking.com deal was found by Cheapflights users on 7/3. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/259:20 amDTW - STL
Nonstop1h 32mSpirit Airlines
Sun 7/2710:47 amSTL - DTW
Nonstop1h 29mSpirit Airlines
Deal found 7/3$61
This Priceline deal was found by Cheapflights users on 7/3. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/179:36 amDTW - STL
1 stop4h 58mMultiple Airlines
Thu 8/212:30 pmSTL - DTW
Nonstop1h 30mMultiple Airlines
Deal found 7/3$80
This Southwest deal was found by Cheapflights users on 7/2. 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 8/511:25 amMDW - STL
Nonstop1h 10mSouthwest
Wed 8/68:40 amSTL - MDW
Nonstop1h 10mSouthwest
Deal found 7/2$91
This United Airlines deal was found by Cheapflights users on 7/2. 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 8/129:20 pmORD - STL
Nonstop1h 25mUnited Airlines
Tue 8/195:30 pmSTL - ORD
Nonstop1h 25mUnited Airlines
Deal found 7/2$91
This American Airlines deal was found by Cheapflights users on 7/2. 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 8/1610:08 pmORD - STL
Nonstop1h 16mAmerican Airlines
Sat 8/234:19 pmSTL - ORD
Nonstop1h 26mAmerican Airlines
Deal found 7/2$92
This Priceline deal was found by Cheapflights users on 7/3. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/179:36 amDTW - STL
1 stop4h 58mFrontier
Thu 8/2110:17 amSTL - DTW
1 stop6h 43mFrontier
Deal found 7/3$102
This Southwest deal was found by Cheapflights users on 7/1. 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.
Sat 8/162:55 pmORD - STL
1 stop5h 35mSouthwest
Mon 8/187:15 amSTL - ORD
1 stop8h 05mSouthwest
Deal found 7/1$114
This Delta deal was found by Cheapflights users on 6/30. 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.
Fri 9/128:55 amDTW - STL
Nonstop1h 38mDelta
Mon 9/156:00 pmSTL - DTW
Nonstop1h 34mDelta
Deal found 6/30$119
This Southwest deal was found by Cheapflights users on 7/1. 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 8/195:50 amDTW - STL
1 stop4h 45mSouthwest
Thu 8/217:50 amSTL - DTW
Nonstop1h 30mSouthwest
Deal found 7/1$138
This Jettzy deal was found by Cheapflights users on 7/1. 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 Jettzy is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/138:15 amORD - STL
1 stop3h 55mSouthern / Mokulele
Wed 8/201:00 pmSTL - ORD
1 stop18h 37mSouthern / Mokulele
Deal found 7/1$165
This American Airlines deal was found by Cheapflights users on 7/2. 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 9/212:21 pmGRR - STL
1 stop9h 04mAmerican Airlines
Sat 9/67:23 amSTL - GRR
1 stop12h 29mAmerican Airlines
Deal found 7/2$171
This Delta deal was found by Cheapflights users on 7/2. 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.
Sat 8/167:17 pmMDW - STL
1 stop4h 05mDelta
Sat 8/238:46 amSTL - MDW
1 stop4h 17mDelta
Deal found 7/2$177

Cheapflights Fare Finder

Customize your flight search to find flights from Michigan to St. Louis 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 July 3, 2025.
Use the filters below to find and compare flights from Michigan to St. Louis that are best for you.

Fly from

Michigan

Fly to

St. Louis

Route

Depart

Return

Price

DetroitSt. Louis

DTW - STL

DTWSTL

Detroit Metropolitan Wayne County

Fri 7/25

9:20 am-9:52 am

Nonstop1h 32m

Lambert-St Louis

Sun 7/27

10:47 am-1:16 pm

Nonstop1h 29m

$61

DetroitSt. Louis

DTW - STL

DTWSTL

Detroit Metropolitan Wayne County

Sun 8/17

9:36 am-1:34 pm

1 stop4h 58m

Lambert-St Louis

Thu 8/21

2:30 pm-5:00 pm

Nonstop1h 30m

$80

ChicagoSt. Louis

MDW - STL

MDWSTL

Chicago Midway

Tue 8/5

11:25 am-12:35 pm

Nonstop1h 10m

Lambert-St Louis

Wed 8/6

8:40 am-9:50 am

Nonstop1h 10m

$91

ChicagoSt. Louis

ORD - STL

ORDSTL

Chicago O'Hare Intl

Tue 8/12

9:20 pm-10:45 pm

Nonstop1h 25m

Lambert-St Louis

Tue 8/19

5:30 pm-6:55 pm

Nonstop1h 25m

$91

ChicagoSt. Louis

ORD - STL

ORDSTL

Chicago O'Hare Intl

Sat 8/16

10:08 pm-11:24 pm

Nonstop1h 16m

Lambert-St Louis

Sat 8/23

4:19 pm-5:45 pm

Nonstop1h 26m

$92

DetroitSt. Louis

DTW - STL

DTWSTL

Detroit Metropolitan Wayne County

Sun 8/17

9:36 am-1:34 pm

1 stop4h 58m

Lambert-St Louis

Thu 8/21

10:17 am-6:00 pm

1 stop6h 43m

$102

ChicagoSt. Louis

ORD - STL

ORDSTL

Chicago O'Hare Intl

Sat 8/16

2:55 pm-8:30 pm

1 stop5h 35m

Lambert-St Louis

Mon 8/18

7:15 am-3:20 pm

1 stop8h 05m

$114

DetroitSt. Louis

DTW - STL

DTWSTL

Detroit Metropolitan Wayne County

Fri 9/12

8:55 am-9:33 am

Nonstop1h 38m

Lambert-St Louis

Mon 9/15

6:00 pm-8:34 pm

Nonstop1h 34m

$119

DetroitSt. Louis

DTW - STL

DTWSTL

Detroit Metropolitan Wayne County

Tue 8/19

5:50 am-9:35 am

1 stop4h 45m

Lambert-St Louis

Thu 8/21

7:50 am-10:20 am

Nonstop1h 30m

$138

ChicagoSt. Louis

ORD - STL

ORDSTL

Chicago O'Hare Intl

Wed 8/13

8:15 am-12:10 pm

1 stop3h 55m

Lambert-St Louis

Wed 8/20

1:00 pm-7:37 am

1 stop18h 37m

$165

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

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

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

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

Currently, August is the cheapest month in which you can book a flight from Michigan to St. Louis (average of $311). Flying from Michigan to St. Louis in March is currently the most expensive (average of $356). 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 STL?

Find hourly flight availability from Michigan to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 3, 2025.

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

Weekly flight availability from Michigan to St. Louis

Explore weekly flight availability from Michigan to St. Louis. 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 July 3, 2025.

The most flights from USMI to STL are scheduled on a Thursday (15 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (2 on average).

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. 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 St. Louis. Reviews last updated July 3, 2025.
Read through reviews of airlines operating flights from Michigan to St. Louis, such as Southwest, Delta, and United Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,266 reviews

Overall

8.0

Crew

8.6

Entertainment

7.6

Boarding

8.2

Food

7.0

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Southwest
8.0
Very good
4,266 reviews
Southwest
8.0
Very good
4,266 reviews

Overall

8.0

Crew

8.6

Entertainment

7.6

Boarding

8.2

Food

7.0

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Delta
8.0
Very good
7,982 reviews
Southwest
8.0
Very good
4,266 reviews

Overall

8.0

Crew

8.6

Entertainment

7.6

Boarding

8.2

Food

7.0

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
United Airlines
7.4
Good
8,861 reviews
Southwest
8.0
Very good
4,266 reviews

Overall

8.0

Crew

8.6

Entertainment

7.6

Boarding

8.2

Food

7.0

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,266 reviews

Overall

8.0

Crew

8.6

Entertainment

7.6

Boarding

8.2

Food

7.0

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Related info for your journey

Find useful and relevant information for your journey from Michigan to St. Louis. 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 into for flights to St. Louis from Michigan?

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

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

    The cheapest airline one-way is Spirit Airlines, with whom users have recently found tickets for as low as $31. However, be on the lookout for offers from Southwest and United Airlines, as they are both options that can get you from Michigan to St. Louis for a low price.

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

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

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

    No one likes to see their flight delayed. When booking a flight from Michigan to St. Louis consider choosing Spirit Airlines (91%), Aeromexico (90%) or Korean Air (80%) as they are the most reliable in getting you off to your destination on time.

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

    Looking for the cheapest flight from Michigan to St. Louis? While on average our users pay $214, our data indicates the cheapest price to be $40. The most popular route (Chicago O'Hare Intl - Lambert-St Louis), is priced around $91.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Michigan to St. Louis (average of $311). Flying from Michigan to St. Louis in March is currently the most expensive (average of $356). 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

Traveling to a place near Michigan?

Book flights to Michigan if you plan to visit one of these locations
O'Fallon
Maryland Heights
Fairview Heights
Collinsville
Eureka
St. Peters
Glencoe
Alton
Festus
Chesterfield
Farmington

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Alternative routes for Michigan to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Michigan to St. Louis

Discover the top 6 airlines that operate flights from Michigan to St. Louis. 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 July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$38Average$79FlexibilityNo cancel feeOn-time65%
FrontierCheapest$124Average$229FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$179Average$336FlexibilityNo cancel feeOn-time71%
DeltaCheapest$190Average$321FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$205Average$311FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$228Average$388FlexibilityNo cancel feeOn-time69%

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