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$63+ Cheap flights from St. Louis to Miami (STL - MIA)

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 8/31. Fares are subject to change and may not be available on all flights or dates of travel.
STL — MIA
Sep 3 — Sep 101
Thu 9/3
Thu 9/10
1 adult, Economy
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Find cheap flights from St. Louis to Miami with Cheapflights

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Cheapflights Tip: The best prices from Lambert-St Louis to Miami are usually found in September or October, booked 84 days in advance, depart on a Monday or Saturday and return on a Thursday

Cheap flight deals from St. Louis to Miami

Cheapest flights from St. Louis to Miami
Explore the most affordable flight options available from St. Louis to Miami. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 4, 2026.

This Kiwi.com deal was found by Cheapflights users on 8/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/252:29 pm
STL
-
MIA
1 stop5h 04m
Frontier
Mon 9/285:32 am
MIA
-
STL
2 stops12h 02m
Frontier
Deal found 8/3$271
This Southwest deal was found by Cheapflights users on 7/30. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2711:40 am
STL
-
MIA
2 stops9h 25m
Southwest
Thu 9/36:20 am
MIA
-
STL
1 stop6h 15m
Southwest
Deal found 7/30$272
This Frontier deal was found by Cheapflights users on 8/1. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/307:58 pm
STL
-
MIA
1 stop7h 54m
Frontier
Fri 9/48:10 am
MIA
-
STL
1 stop10h 12m
Frontier
Deal found 8/1$273
This Kiwi.com deal was found by Cheapflights users on 7/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/186:45 pm
STL
-
MIA
2 stops17h 47m
Frontier
Tue 8/256:50 am
MIA
-
STL
1 stop10h 41m
Frontier
Deal found 7/30$274
This Kiwi.com deal was found by Cheapflights users on 7/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/47:03 pm
STL
-
MIA
1 stop10h 27m
Frontier
Tue 8/118:30 am
MIA
-
STL
1 stop10h 07m
Frontier
Deal found 7/30$275
This American Airlines deal was found by Cheapflights users on 7/31. 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.
Mon 12/75:10 am
STL
-
MIA
Nonstop2h 54m
American Airlines
Mon 12/149:47 pm
MIA
-
STL
Nonstop3h 12m
American Airlines
Deal found 7/31$277
This Southwest deal was found by Cheapflights users on 8/1. 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 9/110:45 am
STL
-
MIA
2 stops8h 25m
Southwest
Tue 9/87:10 am
MIA
-
STL
2 stops8h 40m
Southwest
Deal found 8/1$278
This Kiwi.com deal was found by Cheapflights users on 8/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/252:29 pm
STL
-
MIA
1 stop19h 01m
Frontier
Sun 9/2711:30 pm
MIA
-
STL
2 stops14h 40m
Frontier
Deal found 8/1$279
This Southwest deal was found by Cheapflights users on 7/31. 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 8/298:30 am
STL
-
MIA
2 stops9h 45m
Southwest
Sat 9/57:00 am
MIA
-
STL
2 stops9h 30m
Southwest
Deal found 7/31$283
This American Airlines deal was found by Cheapflights users on 7/31. 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.
Fri 9/111:54 pm
STL
-
MIA
1 stop5h 45m
American Airlines
Mon 9/149:55 pm
MIA
-
STL
Nonstop3h 04m
American Airlines
Deal found 7/31$284
This American Airlines deal was found by Cheapflights users on 7/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/145:00 am
STL
-
MIA
Nonstop2h 44m
American Airlines
Thu 9/175:20 pm
MIA
-
STL
1 stop6h 22m
American Airlines
Deal found 7/30$285
This Kiwi.com deal was found by Cheapflights users on 8/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/144:57 pm
STL
-
MIA
1 stop5h 09m
Frontier
Sun 8/238:10 am
MIA
-
STL
1 stop10h 12m
Frontier
Deal found 8/1$286

Find flight deals from St. Louis to Miami

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Miami (MIA). 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 4, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$271
(Kiwi.com)

One-way from

$63
(Kiwi.com)

Popular in

June

Cheapest in

September

Average price

$346

Good round-trip deal

$372 or less

Good one-way deal

$209 or less
Provider with most accurate pricing for Lambert-St Louis-Miami flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-Miami flights.
Search Deals
From Lambert-St Louis to Miami
Search Deals
One-way flight from Lambert-St Louis to Miami
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($38 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2026
Search Deals
Price to beat on a round-trip flight from Lambert-St Louis to Miami.
Search Deals
Price to beat on a one-way flight from Lambert-St Louis to Miami.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Miami 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 4, 2026.
Use the filters below to find and compare flights from St. Louis to Miami that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisMiami

STL - MIA

STLMIA

Lambert-St Louis

Tue 10/20

2:25 pm-10:10 pm

2 stops6h 45m

Miami

Tue 10/27

8:40 am-3:55 pm

2 stops8h 15m

$278

St. LouisMiami

STL - MIA

STLMIA

Lambert-St Louis

Mon 10/12

2:30 pm-10:55 pm

1 stop7h 25m

Miami

Sat 10/17

5:50 am-7:40 am

Nonstop2h 50m

$285
Quickest round-trip

St. LouisMiami

STL - MIA

STLMIA

Lambert-St Louis

Fri 10/16

5:50 pm-10:55 pm

1 stop4h 05m

Miami

Thu 10/22

7:10 pm-9:00 pm

Nonstop2h 50m

$331

St. LouisMiami

STL - MIA

STLMIA

Lambert-St Louis

Sat 8/29

8:30 am-7:15 pm

2 stops9h 45m

Miami

Mon 9/7

4:50 pm-10:30 pm

1 stop6h 40m

$338

St. LouisMiami

STL - MIA

STLMIA

Lambert-St Louis

Thu 9/3

11:40 am-10:10 pm

2 stops9h 30m

Miami

Mon 9/7

6:20 am-11:35 am

1 stop6h 15m

$358

St. LouisMiami

STL - MIA

STLMIA

Lambert-St Louis

Mon 9/28

6:00 am-1:21 pm

1 stop6h 21m

Miami

Wed 9/30

7:00 am-3:43 pm

2 stops9h 43m

$362

St. LouisMiami

STL - MIA

STLMIA

Lambert-St Louis

Fri 9/11

3:15 pm-10:10 pm

2 stops5h 55m

Miami

Sun 9/20

6:45 am-10:40 am

1 stop4h 55m

$368

St. LouisMiami

STL - MIA

STLMIA

Lambert-St Louis

Sat 9/5

7:50 am-7:20 pm

2 stops10h 30m

Miami

Thu 9/10

7:00 am-3:20 pm

2 stops9h 20m

$385

St. LouisMiami

STL - MIA

STLMIA

Lambert-St Louis

Wed 9/16

7:56 am-11:52 pm

2 stops14h 56m

Miami

Wed 9/23

7:00 am-3:38 pm

2 stops9h 38m

$397

St. LouisMiami

STL - MIA

STLMIA

Lambert-St Louis

Sat 9/5

7:25 am-11:54 am

1 stop27h 29m

Miami

Sat 9/12

8:25 am-8:00 pm

2 stops12h 35m

$402

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/3

Showing 1-10 of 23 resultsSorted by cheapest first
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Compare providers for flights from St. Louis to Miami

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Miami in August.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star
CheapTicketsDealPrice Accuracy1 starTrust Score*3 stars
Super.comPrice Accuracy-Trust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on St. Louis-Miami flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Miami flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Miami flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on St. Louis-Miami flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Miami flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

Have a flexible travel schedule? Discover the best time to fly to Miami 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 Miami

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

The price you pay for your flight from St. Louis to Miami may vary depending on when you book. For the best chance of a lower fare, look to book 83 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, September is the cheapest month in which you can book a flight from St. Louis to Miami (average of $319). Flying from St. Louis to Miami in June is currently the most expensive (average of $469). 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 MIA?

Find hourly flight availability from St. Louis to Miami. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 4, 2026.

A simple way to save on the total cost of your ticket is to fly from St. Louis to Miami in the evening. If you’re flexible enough to do this you can expect to save up to 36% on your trip compared to booking a flight in the afternoon.

How much does it cost to fly round-trip from St. Louis to Miami?

Airfare is typical for this route at the moment.

St. Louis to Miami flights typically cost between $258 and $422 in September.
The cheapest round-trip price found within the last 5 days was $271 on Frontier (Sep 25-Sep 28).

The best insider tips for St. Louis to Miami flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your St. Louis to Miami trip
Our travel experts
Ramsey Qubein

Ramsey Qubein

Expert on MIA

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 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

Reviews of airlines servicing Miami

Get insights into the airlines that provide service to Miami. 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 Miami. Reviews last updated August 4, 2026.
Get a feel of what it's like to fly with Southwest,Delta, andUnited Airlines from St. Louis to Miami 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
4,227 reviews

Comfort

8.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

Overall

8.0

Food

7.0

Reviews

1 / 20
6.0
Good

Scott,Feb 2026

HOU - FLL

Delayed by 45 minutes leaving Houston, making a 3.5 hour layover that much longer.
Southwest
8.0
Very good
4,227 reviews
Southwest
8.0
Very good
4,227 reviews

Comfort

8.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

Overall

8.0

Food

7.0

Reviews

1 / 20
6.0
Good

Scott,Feb 2026

HOU - FLL

Delayed by 45 minutes leaving Houston, making a 3.5 hour layover that much longer.
Delta
7.8
Good
8,483 reviews
Southwest
8.0
Very good
4,227 reviews

Comfort

8.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

Overall

8.0

Food

7.0

Reviews

1 / 20
6.0
Good

Scott,Feb 2026

HOU - FLL

Delayed by 45 minutes leaving Houston, making a 3.5 hour layover that much longer.
United Airlines
7.4
Good
10,058 reviews
Southwest
8.0
Very good
4,227 reviews

Comfort

8.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

Overall

8.0

Food

7.0

Reviews

1 / 20
6.0
Good

Scott,Feb 2026

HOU - FLL

Delayed by 45 minutes leaving Houston, making a 3.5 hour layover that much longer.
American Airlines
7.1
Good
11,842 reviews
Southwest
8.0
Very good
4,227 reviews

Comfort

8.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

Overall

8.0

Food

7.0

Reviews

1 / 20
6.0
Good

Scott,Feb 2026

HOU - FLL

Delayed by 45 minutes leaving Houston, making a 3.5 hour layover that much longer.
Frontier
5.6
Fair
2,737 reviews
Southwest
8.0
Very good
4,227 reviews

Comfort

8.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

Overall

8.0

Food

7.0

Reviews

1 / 20
6.0
Good

Scott,Feb 2026

HOU - FLL

Delayed by 45 minutes leaving Houston, making a 3.5 hour layover that much longer.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Miami. 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 St. Louis to Miami?

    Miami is the airport most travelers will use when flying to Miami from Lambert-St Louis. Booking flights from Lambert-St Louis (STL) to Miami (MIA) should be relatively easy as there are 3 daily flights to Miami from 6 different airlines. 2h 35m is how long a flight from St. Louis to Miami will take if you book a nonstop flight.

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

    Flights from Lambert-St Louis to Miami have been viewed 58 times in the past calendar month.

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

    For as low as $278, Southwest can have you in Miami from St. Louis in 6h 45m. The distance between St. Louis and Miami is about 1069 mi.

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

    Currently priced at $143, Frontier will fly you from St. Louis to Miami and back. In addition to Frontier, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Delta and JetBlue - these airlines can fly you to your destination from $196 and $220, respectively. These flights start at 64% lower than the current average price 3 months from now.

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

    The cheapest airlines for a one-way flight from St. Louis to Miami are Frontier ($75), American Airlines ($100), and Delta ($124).

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from St. Louis to Miami on time: Qatar Airways (91%), American Airlines (86%), GOL (86%).

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

    On average you can expect to pay $404 for a flight from St. Louis to Miami. The cheapest flight overall is $127 while the most popular route, (Lambert-St Louis - Miami) is currently priced at $212.

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

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

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

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

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

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

    Currently, September is the cheapest month in which you can book a flight from St. Louis to Miami (average of $319). Flying from St. Louis to Miami in June is currently the most expensive (average of $469). 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 Miami?

Book flights to Miami if you plan to visit one of these locations
Sunny Isles Beach
Hollywood
Dania Beach
Miami Springs
Boynton Beach
Miramar
Plantation
Sunrise
Doral
Hialeah
Palm Beach
Lake Worth
Kendall
Tamarac
Fisher Island
Bonita Springs
Deerfield Beach
Marathon
North Palm Beach
Oakland Park

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 6 airlines flying from St. Louis to Miami

Discover the top 6 airlines that operate flights from St. Louis to Miami. 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 4, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$143Average$254FlexibilityNo cancel feeOn-time62%
DeltaCheapest$196Average$443FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$220Average$408FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$245Average$416FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$270Average$518FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$275Average$453FlexibilityNo cancel feeOn-time63%

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