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St. Louis

$72+ Cheap flights from Miami to St. Louis (MIA - 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 11/2. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — STL
Aug 25 — Sep 11
Mon 8/25
Mon 9/1
1 adult, Economy
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Cheapflights Tip: The best prices from Miami to Lambert-St Louis are usually found in September or October, booked 62 days in advance, depart on a Saturday or Friday and return on a Wednesday

Cheap flight deals from Miami to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Miami (MIA) to St. Louis (STL). 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 August 20, 2025.

Round-trip from

$144
(Priceline)

One-way from

$72
(Priceline)

Popular in

March

Cheapest in

September

Average price

$316

Good round-trip deal

$217 or less

Good one-way deal

$168 or less
From Miami to Lambert-St Louis
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One-way flight from Miami to Lambert-St Louis
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Highest demand for flights based on searches. 14% potential increase in price ($61 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($12 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 Miami to Lambert-St Louis.
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Price to beat on a one-way flight from Miami to Lambert-St Louis.
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Find flight deals from Miami to St. Louis

Cheapest flights from Miami to St. Louis
Explore the most affordable flight options available from Miami to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 20, 2025.

This Priceline 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/25:05 amMIA - STL
1 stop6h 07mFrontier
Fri 11/74:29 pmSTL - MIA
1 stop7h 05mFrontier
Deal found 8/18$144
This Priceline deal was found by Cheapflights users on 8/19. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/245:15 amMIA - STL
1 stop6h 22mFrontier
Sun 10/2610:17 amSTL - MIA
1 stop6h 16mFrontier
Deal found 8/19$149
This Frontier deal was found by Cheapflights users on 8/19. 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.
Thu 9/115:30 amMIA - STL
1 stop10h 34mFrontier
Sun 9/1410:39 amSTL - MIA
1 stop11h 48mFrontier
Deal found 8/19$157
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/205:35 pmMIA - STL
1 stop22h 29mFrontier
Mon 9/224:00 pmSTL - MIA
1 stop7h 12mFrontier
Deal found 8/18$165
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/46:00 amMIA - STL
1 stop28h 06mFrontier
Thu 9/114:00 pmSTL - MIA
1 stop7h 12mFrontier
Deal found 8/18$170
This Kiwi.com deal was found by Cheapflights users on 8/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/185:30 amMIA - STL
1 stop10h 34mFrontier
Sun 9/214:00 pmSTL - MIA
1 stop7h 12mFrontier
Deal found 8/19$173
This Kiwi.com deal was found by Cheapflights users on 8/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/307:05 amMIA - STL
1 stop7h 28mFrontier
Thu 9/44:00 pmSTL - MIA
1 stop15h 29mFrontier
Deal found 8/20$182
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/46:45 amMIA - STL
1 stop27h 21mFrontier
Sun 10/54:00 pmSTL - MIA
1 stop7h 12mFrontier
Deal found 8/18$187
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.
Tue 9/910:09 pmMIA - STL
Nonstop2h 50mAmerican Airlines
Wed 9/105:28 amSTL - MIA
Nonstop2h 49mAmerican Airlines
Deal found 8/18$189

Cheapflights Fare Finder

 
Customize your flight search to find flights from Miami 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 August 20, 2025.
Use the filters below to find and compare flights from Miami to St. Louis that are best for you.

Fly from

Miami

Fly to

St. Louis

Route

Depart

Return

Price

MiamiSt. Louis

MIA - STL

MIASTL

Miami

Sun 11/2

5:05 am-10:12 am

1 stop6h 07m

Lambert-St Louis

Fri 11/7

4:29 pm-12:34 am

1 stop7h 05m

$144

MiamiSt. Louis

MIA - STL

MIASTL

Miami

Fri 10/24

5:15 am-10:37 am

1 stop6h 22m

Lambert-St Louis

Sun 10/26

10:17 am-5:33 pm

1 stop6h 16m

$149

MiamiSt. Louis

MIA - STL

MIASTL

Miami

Thu 9/11

5:30 am-3:04 pm

1 stop10h 34m

Lambert-St Louis

Sun 9/14

10:39 am-11:27 pm

1 stop11h 48m

$157

MiamiSt. Louis

MIA - STL

MIASTL

Miami

Sat 9/20

5:35 pm-3:04 pm

1 stop22h 29m

Lambert-St Louis

Mon 9/22

4:00 pm-12:12 am

1 stop7h 12m

$165

MiamiSt. Louis

MIA - STL

MIASTL

Miami

Wed 10/8

4:05 pm-10:37 am

1 stop19h 32m

Lambert-St Louis

Sun 10/12

10:17 am-5:33 pm

1 stop6h 16m

$165

MiamiSt. Louis

MIA - STL

MIASTL

Miami

Mon 9/15

5:30 am-3:04 pm

1 stop10h 34m

Lambert-St Louis

Tue 9/16

7:55 pm-12:44 am

1 stop27h 49m

$170

MiamiSt. Louis

MIA - STL

MIASTL

Miami

Fri 9/26

6:00 am-9:06 am

1 stop28h 06m

Lambert-St Louis

Sun 9/28

4:00 pm-12:12 am

1 stop7h 12m

$170

MiamiSt. Louis

MIA - STL

MIASTL

Miami

Thu 9/4

6:00 am-9:06 am

1 stop28h 06m

Lambert-St Louis

Thu 9/11

4:00 pm-12:12 am

1 stop7h 12m

$170

MiamiSt. Louis

MIA - STL

MIASTL

Miami

Thu 9/18

5:30 am-3:04 pm

1 stop10h 34m

Lambert-St Louis

Sun 9/21

4:00 pm-12:12 am

1 stop7h 12m

$173

MiamiSt. Louis

MIA - STL

MIASTL

Miami

Sat 8/30

7:05 am-1:33 pm

1 stop7h 28m

Lambert-St Louis

Thu 9/4

4:00 pm-8:29 am

1 stop15h 29m

$182

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/18

Showing 1-10 of 23 results
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The best insider tips for Miami to St. Louis flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Miami to St. Louis trip
Airports
MIA

For a quick check-in, use the MIA Mover train to reach the Miami Intermodal Center for rental cars and public transport options.

Read more about MIAby Ramsey Qubein
STL

Use the MetroLink light rail for an economical and direct connection from STL to downtown St. Louis, taking about 40 minutes.

Read more about STLby Taryn White
Our travel experts
Ramsey Qubein

Ramsey Qubein

Expert on MIA

Ramsey Qubein

Ramsey Qubein

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more
Taryn White

Taryn White

Expert on STL

Taryn White

Taryn White

Taryn White is a freelance travel writer, digital creator, and travel advisor who has visited nearly 100 countries and all 50 states. She’s familiar with many airports and enjoys beach hopping, boutique hotels, spa experiences, and exploring local culture. Her work has appeared in Travel + Leisure, Condé Nast Traveler, National Geographic, Smithsonian Magazine, AFAR, and more.

Read more

Best time to book a flight from Miami to St. Louis

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

How far ahead should I book a flight from Miami to St. Louis?

Use this chart to determine the optimal time to book a round-trip flight from Miami to St. Louis. Price data was last updated on August 8, 2025.

To ensure you get the cheapest price possible for a flight from Miami to St. Louis, you should look to book at least 62 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, August is the cheapest month in which you can book a flight from Miami to St. Louis (average of $311). Flying from Miami 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 MIA to STL?

Find hourly flight availability from Miami 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 August 20, 2025.

One of the essential ways to save on airfare from Miami to St. Louis is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the morning could potentially save you up to 21% on airfare.

What is the cheapest day to fly from Miami to St. Louis?

Use this chart to determine the cheapest time to fly round-trip from Miami to St. Louis. Price data was last updated on February 2, 2025.

Travelers seeking maximum savings on their Miami to St. Louis flight should consider departing on Saturday afternoons when fares are most often at their lowest. Wednesday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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 August 20, 2025.
Get a feel of what it's like to fly with Southwest, Delta, and American Airlines from Miami to St. Louis by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,246 reviews

Comfort

8.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Food

7.0

Overall

8.0

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

Comfort

8.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Food

7.0

Overall

8.0

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
7,982 reviews
Southwest
8.0
Very good
4,246 reviews

Comfort

8.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Food

7.0

Overall

8.0

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

Comfort

8.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Food

7.0

Overall

8.0

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
8,039 reviews
Southwest
8.0
Very good
4,246 reviews

Comfort

8.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Food

7.0

Overall

8.0

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.
Frontier
5.8
Fair
3,207 reviews
Southwest
8.0
Very good
4,246 reviews

Comfort

8.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Food

7.0

Overall

8.0

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 Miami 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 airports do I use to fly from Miami to St. Louis?

    Lambert-St Louis is the airport most travelers will use when flying to St. Louis from Miami. Booking flights from Miami (MIA) to Lambert-St Louis (STL) should be relatively easy as there are 4 daily flights to St. Louis from 5 different airlines. 2h 50m is how long a flight from Miami to Lambert-St Louis will take if you book a nonstop flight.

  • How popular is this Miami to St. Louis flight route?

    Flights from Miami to Lambert-St Louis have been viewed 15 times in the past calendar month.

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

    Frontier can get you from Miami to St. Louis in just under 6h 07m. Your travel time can differ by up to . Airlines will cover a distance of 1069 mi.

  • What are the cheapest airlines flying from Miami to St. Louis round-trip?

    Cheapflights users have booked flights from Miami to St. Louis round-trip from $89. Other airlines that can offer you cheap pricing are Frontier, from $128, and Southwest, from $192. You may be able to fly from Miami to St. Louis for 75% less than the average price by searching for these airlines.

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

    Before booking your flight to St. Louis from Miami, check out the most reliable airlines to get you to your destination on time: Envoy Air (100%), American Airlines (72%), Southwest( 56%).

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

    While on average a flight from Miami to St. Louis is generally $281, our data shows the cheapest flight currently is $88. When looking at the most popular route, (Miami - Lambert-St Louis), you can expect to pay $186 for that flight.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Miami to St. Louis (average of $311). Flying from Miami 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 St. Louis?

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

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Top 5 airlines flying from Miami to St. Louis

Discover the top 5 airlines that operate flights from Miami 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 August 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$89Average$148FlexibilityNo cancel feeOn-time65%
FrontierCheapest$128Average$283FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$192Average$367FlexibilityNo cancel feeOn-time63%
DeltaCheapest$198Average$353FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$236Average$398FlexibilityNo cancel feeOn-time71%

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