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$79 Cheap Flights from Miami (MIA) to St. Louis (STL)

View $79 flight on Thu, Oct 8, 2026Opens in a new window

Popular airlines from Miami Intl. Airport (MIA) to St. Louis Lambert Intl. Airport (STL)

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Cheap Flights from Miami to St. Louis (MIA-STL)

Prices were available within the past 7 days and start at $79 for one-way flights and $158 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Mon, Oct 5 - Wed, Oct 7
MIA
Miami
STL
St. Louis
$158 Roundtrip, found 2 hours ago
$158
Roundtrip
found 2 hours ago
Select Frontier Airlines flight, departing Mon, Oct 5 from Miami to St. Louis, returning Wed, Oct 7, priced at $158 found 2 hours ago
Frontier Airlines
Thu, Nov 5 - Mon, Nov 9
MIA
Miami
STL
St. Louis
$168 Roundtrip, found 1 hour ago
$168
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Thu, Nov 5 from Miami to St. Louis, returning Mon, Nov 9, priced at $168 found 1 hour ago
Frontier Airlines
Fri, Oct 2 - Mon, Oct 5
MIA
Miami
STL
St. Louis
$174 Roundtrip, found 1 hour ago
$174
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Fri, Oct 2 from Miami to St. Louis, returning Mon, Oct 5, priced at $174 found 1 hour ago
American Airlines
Thu, Nov 5 - Mon, Nov 9
MIA
Miami
STL
St. Louis
$183 Roundtrip, found 1 hour ago
$183
Roundtrip
found 1 hour ago
Select American Airlines flight, departing Thu, Nov 5 from Miami to St. Louis, returning Mon, Nov 9, priced at $183 found 1 hour ago
Frontier Airlines
Fri, Sep 25 - Fri, Oct 2
MIA
Miami
STL
St. Louis
$190 Roundtrip, found 1 day ago
$190
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Fri, Sep 25 from Miami to St. Louis, returning Fri, Oct 2, priced at $190 found 1 day ago
Delta
Thu, Nov 5 - Mon, Nov 9
MIA
Miami
STL
St. Louis
$193 Roundtrip, found 1 hour ago
$193
Roundtrip
found 1 hour ago
Select Delta flight, departing Thu, Nov 5 from Miami to St. Louis, returning Mon, Nov 9, priced at $193 found 1 hour ago
Frontier Airlines
Mon, Aug 31 - Wed, Sep 9
MIA
Miami
STL
St. Louis
$193 Roundtrip, found 5 days ago
$193
Roundtrip
found 5 days ago
Select Frontier Airlines flight, departing Mon, Aug 31 from Miami to St. Louis, returning Wed, Sep 9, priced at $193 found 5 days ago
Frontier Airlines
Mon, Sep 28 - Thu, Oct 1
MIA
Miami
STL
St. Louis
$197 Roundtrip, found 4 days ago
$197
Roundtrip
found 4 days ago
Select Frontier Airlines flight, departing Mon, Sep 28 from Miami to St. Louis, returning Thu, Oct 1, priced at $197 found 4 days ago
Southwest Airlines
Thu, Nov 5 - Mon, Nov 9
MIA
Miami
STL
St. Louis
$198 Roundtrip, found 1 hour ago
$198
Roundtrip
found 1 hour ago
Select Southwest Airlines flight, departing Thu, Nov 5 from Miami to St. Louis, returning Mon, Nov 9, priced at $198 found 1 hour ago
United
Mon, Oct 5 - Tue, Oct 6
MIA
Miami
STL
St. Louis
$252 Roundtrip, found 15 hours ago
$252
Roundtrip
found 15 hours ago
Select United flight, departing Mon, Oct 5 from Miami to St. Louis, returning Tue, Oct 6, priced at $252 found 15 hours ago

Alternative airports near St. Louis

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Lambert-St. Louis Intl. STL. Cheapest option available. Average driving time to city center is 20 minutes. Flights from $522
STL
Lambert-St. Louis Intl.
Cheapest
Average driving time to city center20 min
Flights from $522

Find the cheapest month to fly from Miami (MIA) to St. Louis (STL)

October is typically the cheapest month to fly

From $84 - $337 per traveler.

What you need to know for your flight from Miami Intl. to Lambert-St. Louis Intl.

Miami (MIA) to St. Louis (STL) at a glance

Travel from Miami (MIA) to St. Louis (STL) with a selection of airlines catering to this domestic short-haul route. You can compare options from both full-service and budget-friendly carriers to discover cheap flights from Miami that suit your travel plans, budget, and schedule. As you prepare to explore the iconic sights and vibrant neighborhoods of St. Louis, find essential information about flight times and available MIA to STL flights.

  • Fastest flight duration: around 3 hours non-stop
  • Route distance: roughly 1,100 miles (1,770 km)
  • Flights per week: around 20+ flights with multiple daily departures on average
  • Typical fares (one-way): economy tickets often range from $90–$430, depending on seasonality and how far ahead you book

Flights from Miami International Airport (MIA) to Lambert-St. Louis International Airport (STL)

Based on recent traveler bookings, here are the top airlines favored for flights from Miami to St. Louis, including both non-stop and one-stop options. Common layovers occur at Hartsfield-Jackson Atlanta International Airport (ATL) with an average layover of about 1 hour and 30 minutes, Charlotte-Douglas International Airport (CLT) at around 1 hour, and O'Hare International Airport (ORD) with a layover of approximately 1 hour and 15 minutes. These choices allow you to balance price, total travel time, and cabin class to find the ideal itinerary.

  • American Airlines: This full-service airline provides a range of options including non-stop, one-stop, and multi-stop flights. One-way fares generally vary from $90 to $455, making up about 52% of the departures on this route, with a direct flight taking approximately 3 hours.
  • Southwest Airlines: Known for its low-cost offerings, Southwest provides both non-stop and one-stop services. One-way tickets typically cost between $90 and $430, accounting for around 28% of flights on this route, with a standard non-stop journey time of 3 hours.
  • Delta: As a full-service airline, Delta offers one-stop flights with one-way fares usually ranging from $100 to $420. It represents about 12% of the departures for this route, with an in-flight duration of 4 hours and a total travel time of roughly 5 hours and 45 minutes, including layover.
  • Frontier Airlines: This low-cost carrier specializes in one-stop services, presenting one-way fares that typically range from $90 to $225. Frontier accounts for about 5% of the departures, with a flight time of 4 hours and a total journey time of approximately 5 hours and 45 minutes, including layovers.
  • United: As another full-service option, United offers one-stop services with one-way fares generally between $140 and $545. It comprises roughly 3% of the departures on this route, with an in-flight time of 4 hours and a total journey time of about 5 hours and 45 minutes, factoring in layovers.

Travelers flying from Miami to St. Louis can enhance their journey by upgrading to first class with American Airlines, enjoying superior service along the way.

Best time to fly from Miami (MIA) to St. Louis (STL)

The most popular months for travelers flying from Miami to St. Louis are January, March, and April, when peak temperatures in St. Louis reach up to 56.1°F in April. If you prefer quieter travel, consider May, the least busy and relatively cheaper time to visit with fewer crowds and temperatures around 66.6°F. For better deals, August usually offers the lowest average one-way fare around $176. Flight availability peaks in August, with approximately 27 flights per week, making it easier to find convenient departure times. February has the fewest flights, with approximately 17 flights per week.

  • Cheapest time to fly: August usually offers good deals with average one-way fare around $176, roughly 23% cheaper than the yearly average.
  • More budget-friendly months to fly: September and October typically offer average one-way fares of around $188.
  • Most flight options: August has the highest number of flights from Miami to St. Louis, with approximately 27 flights per week, giving you more flexibility in scheduling your trip.
calendar iconMonthtemperature iconTemperaturecrowd level iconDemandflights iconWeekly Flightsprice iconAverage one-way Fare
January31.6°F (-0.2°C)Moderately High19$270
February34.9°F (1.6°C)Average17$245
March46.4°F (8.0°C)Moderately High24$275
April56.1°F (13.4°C)Moderately High22$249
May66.6°F (19.2°C)Moderately Low19$221
June76.1°F (24.5°C)Moderately Low21$238
July78.6°F (25.9°C)Average25$209
August77.0°F (25.0°C)Average27$176
September70.9°F (21.6°C)Average22$185
October58.6°F (14.8°C)Average26$190
November46.2°F (7.9°C)Moderately Low24$234
December37.8°F (3.2°C)Average24$251

*Average one-way fare is based on Expedia flight booking data from January 2025 to April 2026 for the specified route and travel class and may change depending on availability, dates, and demand.

Alternative routes from Miami (MIA) to St. Louis (STL)

  • Miami to St. Louis (OPF-STL): Opa Locka Executive Airport (OPF) lies approximately 8 miles from Miami International Airport (MIA), providing convenient access for travelers.
  • Miami to St. Louis (MIA-SUS): The Spirit of St. Louis Airport (SUS) is located around 16 miles from Lambert-St. Louis International Airport (STL), making it a viable option for flights.
  • Miami to St. Louis (MIA-CPS): St. Louis Downtown Airport (CPS) is also situated about 16 miles from Lambert-St. Louis International Airport (STL), offering another route for your travel needs.

How to find the best prices for flights from Miami (MIA) to St. Louis (STL)

Getting some of the best deals on flights from Miami to St. Louis is all about timing and flexibility. Here are some key tips to help you save:

  1. Best times to book and fly: cheaper fares are typically found when booking at least two months in advance, although most travelers tend to book between two to eight weeks ahead. Afternoon departures from 12 PM to 6 PM usually offer lower prices and are the most popular flight times. Additionally, flying on Tuesday generally provides cheaper options, while Sunday remains the most favored travel day.
  2. Set up price alerts: stay updated on price changes by using Expedia's Price Tracker. Receive alerts when fares drop for your selected route.
  3. Bundle and save: bundle your flight and hotel to save on Expedia, or unlock a hotel deal after booking your flight.*
  4. Compare flight options: use Expedia's search tool to compare airlines, routes, direct vs. non-direct flights, and flight times. You can also sort by price to find the most affordable options.
  5. Stay flexible with dates: being open to different travel days can sometimes help you find better prices on flights and hotels.
  6. Think about luggage: nowadays, it's important to check the airline's baggage policies to find the best value. That may be paying for an additional carry-on bag or booking a ticket with checked luggage included. Either way, double-check your allowance before confirming your booking to avoid excess baggage fees at the airport.

*Members only. Savings vary and are not available on all bundles. Select hotels.

Arriving at Lambert-St. Louis International Airport from Miami International Airport

St. Louis welcomes travelers from Miami with a range of transport options based on price, convenience, and proximity. Here's how to reach St. Louis efficiently:

  • Hotel transfer: Transfers offer a convenient way to reach your hotel in St. Louis, with private rides that can be arranged in advance.
  • Car rental: Renting a car from Lambert-St. Louis International Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at Lambert-St. Louis International Airport on Expedia.
  • Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.
  • Public transportation: From Lambert-St. Louis International Airport, Lambert Main Terminal Station, a metro station, is located about 0.1 miles away on foot, providing easy access to public transportation.

Frequently asked questions

How much does a flight from Miami, FL (MIA-Miami Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.) cost?
You can find cheap one-way flights from $79 and cheap return flights from $158 Miami, FL (MIA-Miami Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.) with Expedia. One-way flights typically cost between $166 and $884, and return flights often range between $332 and $1525. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Miami, FL (MIA-Miami Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Miami, FL (MIA-Miami Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.)?
The cheapest month to fly from MIA to STL is October when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Miami, FL (MIA-Miami Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.)?
American Airlines operates around 25 direct flights from MIA to STL every week.
What is the cheapest airline that flies from Miami, FL (MIA-Miami Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.)?
Southwest Airlines is one of the cheapest airlines offering nonstop flights from Miami, FL (MIA) to St. Louis, MO (STL), with round-trip tickets starting from around $479. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Miami, FL (MIA-Miami Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.)?
To find a cheap flight from Miami, FL (MIA-Miami Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Miami, FL (MIA-Miami Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.)?
The best airline to fly with from Miami, FL (MIA) to St. Louis, MO (STL) will differ from traveler to traveler. If you like to fly early, WN offers early morning flights. If price is the most important factor, American Airlines typically offers the lowest fares. American Airlines offers the most daily flights from MIA to STL, which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Miami, FL (MIA-Miami Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Miami, FL (MIA-Miami Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.)?
There are approximately 5 nonstop flights per day from Miami Intl. (MIA) to Lambert-St. Louis Intl. (STL). For more options, look at flights that include layovers.
What is the earliest flight from Miami, FL (MIA-Miami Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.)?
The earliest flight from Miami, FL (MIA) to St. Louis, MO (STL) usually leaves at around 5:00 AM, with American Airlines offering this route. An early flight can help you maximize your time in St. Louis for business or leisure. This service operates seasonally in December. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Miami, FL (MIA-Miami Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.)?
When flying from Miami International (MIA) to Lambert-St. Louis International (STL), the most popular departure times are in the early morning, from 6am to 9am. This accounts for around 30% of total traffic. Many major carriers, including American Airlines, Delta, and Southwest, offer flights during this window, making it a great option for early risers.
How long does it take to fly from Miami, FL (MIA-Miami Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.)?
Direct flights from MIA to STL usually take about 3 hours 20 minutes, traveling roughly 1,070 miles. If you opt for a connecting flight, expect to add around 3 hours 10 minutes to your journey. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Miami, FL (MIA-Miami Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.)?
Business class seats are offered on the MIA to STL route with American Airlines.First class cabins are available on:

  • Delta Air Lines
  • American Airlines
  • United Airlines

How much is a business class flight from Miami, FL (MIA-Miami Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.)?
A direct, return business class ticket from Miami, FL (MIA) to St. Louis, MO (STL) typically costs between $1,173 - $1,786. A non-stop, one-way business class flight is usually around $498 - $795. This gives you a clear idea of what to expect when planning your trip. Prices often fluctuate based on seasonality and how early you book. You may also be able to find a cheaper business class journey between Miami, FL (MIA-Miami Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.) if you opt for a connecting flight.*Prices based on flights available on Expedia in the last year.
How do I earn miles on a Miami, FL (MIA-Miami Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.) flight with Expedia?
It's easy to earn miles on a Miami, FL (MIA-Miami Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for St. Louis from Miami Intl. (MIA)?
From Miami Intl. (MIA), you can fly into Lambert-St. Louis Intl. (STL) to reach St. Louis. Some flights may connect through major hubs like Liberty Intl. (EWR), George Bush Intercontinental (IAH), Washington Dulles Intl. (IAD) before reaching St. Louis. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Miami, FL (MIA-Miami Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.) at the last minute?
Typically, booking a last minute flight from Miami, FL (MIA-Miami Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Miami, FL (MIA-Miami Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.) flight and hotel package?
Securing a Miami, FL (MIA-Miami Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.) St Louis Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Miami, FL (MIA-Miami Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.)?
If you booked your Miami, FL (MIA-Miami Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Miami Intl.
Destination airport
Lambert-St. Louis Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Southwest Airlines, United
Roundtrip price
$158
Distance
1069 mi
Average flight time
2 hours 9 mins

Book with confidence

Miami to St. Louis Flights

The cheapest times to fly from Miami to St. Louis

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Miami to St. Louis are during the month of October. You can find some of the cheapest flights from Miami to St. Louis with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Miami to St. Louis

Sunday is one of the best days to book for cheap flights from Miami to St. Louis: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Miami to St. Louis

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Miami to St. Louis in 2026. You can also book with separate airlines for your outbound and return journeys, from $79 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Miami to St. Louis flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Miami to St. Louis airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Miami to St. Louis Flights

*Flight schedules are subject to change.

*Available to One Key members.

 

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