St. Louis

$66+ 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 4/21. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — STL
Mar 26 — Apr 21
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Miami to St. Louis with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.
Cheapflights Tip: The best prices from Miami to Lambert-St Louis are usually found in October or August, booked 62 days in advance, depart on a Thursday or Friday and return on a Sunday

Cheap 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 February 24, 2026.

This Kiwi.com deal was found by Cheapflights users on 2/21. 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.
Wed 4/151:10 pm
MIA
-
STL
1 stop22h 20m
Frontier
Wed 4/228:23 pm
STL
-
MIA
1 stop27h 26m
Frontier
Deal found 2/21$158
This Kiwi.com deal was found by Cheapflights users on 2/24. 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 3/245:05 am
MIA
-
STL
1 stop6h 27m
Multiple Airlines
Tue 3/3111:27 am
STL
-
MIA
1 stop7h 40m
Multiple Airlines
Deal found 2/24$166
This Kiwi.com deal was found by Cheapflights users on 2/23. 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 5/127:04 pm
MIA
-
STL
1 stop12h 46m
Frontier
Sat 5/168:13 pm
STL
-
MIA
1 stop27h 36m
Frontier
Deal found 2/23$169
This Kiwi.com deal was found by Cheapflights users on 2/23. 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.
Wed 4/83:12 pm
MIA
-
STL
1 stop27h 22m
Multiple Airlines
Wed 4/158:23 pm
STL
-
MIA
1 stop27h 26m
Multiple Airlines
Deal found 2/23$170
This Kiwi.com deal was found by Cheapflights users on 2/21. 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.
Wed 4/158:53 pm
MIA
-
STL
2 stops14h 37m
Multiple Airlines
Wed 4/228:23 pm
STL
-
MIA
1 stop27h 26m
Multiple Airlines
Deal found 2/21$180
This Kiwi.com deal was found by Cheapflights users on 2/24. 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 4/143:12 pm
MIA
-
STL
1 stop16h 38m
Multiple Airlines
Mon 4/209:55 pm
STL
-
MIA
1 stop32h 27m
Multiple Airlines
Deal found 2/24$182
This Kiwi.com deal was found by Cheapflights users on 2/24. 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 4/147:04 pm
MIA
-
STL
1 stop12h 46m
Frontier
Mon 4/203:21 pm
STL
-
MIA
2 stops19h 42m
Frontier
Deal found 2/24$192
This Kiwi.com deal was found by Cheapflights users on 2/24. 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 5/85:45 pm
MIA
-
STL
2 stops26h 27m
Frontier
Fri 5/153:02 pm
STL
-
MIA
1 stop29h 38m
Frontier
Deal found 2/24$199
This Frontier deal was found by Cheapflights users on 2/24. 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 5/145:50 am
MIA
-
STL
1 stop14h 22m
Frontier
Sun 5/178:12 pm
STL
-
MIA
1 stop7h 53m
Frontier
Deal found 2/24$201
This Kiwi.com deal was found by Cheapflights users on 2/24. 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 5/85:45 pm
MIA
-
STL
2 stops26h 27m
Frontier
Sat 5/168:13 pm
STL
-
MIA
1 stop13h 04m
Frontier
Deal found 2/24$202

Find 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 February 24, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$158
(Kiwi.com)

One-way from

$66
(Trip.com)

Popular in

February

Cheapest in

October

Average price

$476

Good round-trip deal

$367 or less

Good one-way deal

$179 or less
Provider with most accurate pricing for Miami-Lambert-St Louis flight deals.
Provider most trusted by Cheapflights users for Miami-Lambert-St Louis flights.
From Miami to Lambert-St Louis
One-way flight from Miami to Lambert-St Louis
Highest demand for flights based on searches. 14% potential increase in price ($60 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($12 potential savings vs. average RT price).
Average for round-trip flights in February 2026
Price to beat on a round-trip flight from Miami to Lambert-St Louis.
Price to beat on a one-way flight from Miami to Lambert-St Louis.

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 February 24, 2026.
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

Fri 5/15

8:42 am-9:00 pm

1 stop13h 18m

Lambert-St Louis

Sun 5/17

8:12 pm-5:05 am

1 stop7h 53m

$180

MiamiSt. Louis

MIA - STL

MIASTL

Miami

Fri 4/17

3:17 pm-7:32 pm

2 stops29h 15m

Lambert-St Louis

Tue 4/21

4:59 pm-12:49 am

2 stops30h 50m

$236

MiamiSt. Louis

MIA - STL

MIASTL

Miami

Tue 3/17

7:05 am-11:09 am

1 stop5h 04m

Lambert-St Louis

Tue 3/24

1:39 pm-9:18 pm

1 stop6h 39m

$299

MiamiSt. Louis

MIA - STL

MIASTL

Miami

Fri 4/17

6:00 am-10:34 am

1 stop5h 34m

Lambert-St Louis

Tue 4/21

9:59 am-5:08 pm

1 stop6h 09m

$327

MiamiSt. Louis

MIA - STL

MIASTL

Miami

Thu 3/19

4:55 pm-8:55 pm

1 stop5h 00m

Lambert-St Louis

Mon 3/23

1:45 pm-5:25 pm

Nonstop2h 40m

$345

MiamiSt. Louis

MIA - STL

MIASTL

Miami

Wed 3/25

5:35 pm-11:05 pm

1 stop6h 30m

Lambert-St Louis

Sun 3/29

8:55 pm-12:35 am

Nonstop2h 40m

$359

MiamiSt. Louis

MIA - STL

MIASTL

Miami

Thu 4/9

6:20 am-12:50 pm

2 stops7h 30m

Lambert-St Louis

Sun 4/12

9:55 pm-1:10 pm

2 stops14h 15m

$416

MiamiSt. Louis

MIA - STL

MIASTL

Miami

Fri 5/15

6:20 am-12:50 pm

2 stops7h 30m

Lambert-St Louis

Sun 5/17

1:15 pm-10:00 pm

2 stops7h 45m

$450

MiamiSt. Louis

MIA - STL

MIASTL

Miami

Fri 4/10

6:00 am-11:09 am

1 stop6h 09m

Lambert-St Louis

Sun 4/12

6:59 pm-12:52 am

1 stop4h 53m

$452

MiamiSt. Louis

MIA - STL

MIASTL

Miami

Thu 3/12

2:21 pm-7:14 pm

1 stop5h 53m

Lambert-St Louis

Mon 3/16

7:40 am-8:27 pm

2 stops11h 47m

$554

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/22

Showing 1-10 of 23 results
1
2
3

Compare providers for flights from Miami to St. Louis

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 Miami to St. Louis in February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star
PricelinePrice Accuracy1 starTrust 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 Miami-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Miami-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Miami-St. Louis flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Miami-St. Louis 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 Miami-St. Louis 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 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 February 20, 2026.

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, March is the cheapest month in which you can book a flight from Miami to St. Louis (average of $38). Flying from Miami to St. Louis in January is currently the most expensive (average of $197). 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 February 24, 2026.

One of the essential ways to save on airfare from Miami to St. Louis is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the afternoon could potentially save you up to 8% 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 21, 2026.

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

The best insider tips for Miami to St. Louis 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 Miami to St. Louis 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.

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.

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 February 24, 2026.
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.

Crew

8.6

Comfort

8.0

Overall

8.0

Boarding

8.1

Food

7.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Crew

8.6

Comfort

8.0

Overall

8.0

Boarding

8.1

Food

7.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Crew

8.6

Comfort

8.0

Overall

8.0

Boarding

8.1

Food

7.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Crew

8.6

Comfort

8.0

Overall

8.0

Boarding

8.1

Food

7.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Crew

8.6

Comfort

8.0

Overall

8.0

Boarding

8.1

Food

7.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Crew

8.6

Comfort

8.0

Overall

8.0

Boarding

8.1

Food

7.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

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 5 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?

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

    Frontier, Delta, and Southwest can get you from Miami to St. Louis in just under 5h. Your travel time can differ by up to 8h 18m. Airlines will cover a distance of 1069 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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 $54. Other airlines that can offer you cheap pricing are Frontier, from $157, and Southwest, from $186. You may be able to fly from Miami to St. Louis for 84% less than the average price by searching for these airlines.

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

    For one-way options, check prices for Spirit Airlines. According to our data, you can fly for as low as $47. Users have also found prices from $69 and $98 on Frontier and Delta, respectively.

  • 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%), Finnair (93%), GOL( 87%).

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

    While on average a flight from Miami to St. Louis is generally $346, our data shows the cheapest flight currently is $139. When looking at the most popular route, (Miami - Lambert-St Louis), you can expect to pay $170 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, March is the cheapest month in which you can book a flight from Miami to St. Louis (average of $38). Flying from Miami to St. Louis in January is currently the most expensive (average of $197). 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
Edwardsville
O'Fallon
Swansea
Fairview Heights
Fenton
Maryland Heights
Collinsville
Eureka
Wentzville
Glencoe
Chesterfield
Alton
Farmington
Festus

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.

Alternative routes for Miami to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.

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 February 24, 2026.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$54Average$174FlexibilityNo cancel feeOn-time65%
FrontierCheapest$157Average$258FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$186Average$348FlexibilityNo cancel feeOn-time63%
DeltaCheapest$196Average$309FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$214Average$374FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.