Cheap flights from Miami International to St Louis

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Flight deals from Miami International to St Louis

Looking for a cheap last-minute deal or the best round-trip flight from Miami International to St Louis? Find the lowest prices on one-way and round-trip tickets right here.

Find the cheapest month to fly from Miami International to St Louis

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Miami International to St Louis flights are currently cheapest in July.

Direct flights from Miami International to St Louis

Miami International to St Louis: Alternative routes

Compare routes from Miami International to St Louis below. You may find an airport to fly into that's cheaper, faster, or easier than St Louis.

Miami to St Louis: Flight information

The things to know before you go.
Cheapest flight foundC$246
Cheapest month to flyJuly
Average flight time3 hrs
Most popular airlineQatar Airways
Average flights per week46

Finding cheap flights from Miami International to St Louis: Frequently asked questions

The best price we found for a round-trip flight from Miami International to St Louis is C$246. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
3 hours is the average flight time from Miami International to St Louis.
Qatar Airways, Southwest Airlines and American Airlines fly direct from Miami International to St Louis.
There are 46 flights per week flying from Miami International to St Louis, as of May 2025.
The cheapest month to fly from Miami International to St Louis is usually May 2025.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Miami International Airport to St Louis Airport on Thursday, July 17, 2025.
Yes – the average flight time is 3 hours.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to St Louis but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to St Louis is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Frontier Airlines and Southwest Airlines offer the cheapest flight tickets to St Louis.

Travelling from Miami International Airport (MIA) to Lambert-St. Louis International Airport (STL): what you need to know

  • Book a direct flight from Miami International Airport to Lambert-St. Louis International Airport and you'll be travelling for an average of 3 hours.

  • The timezone in St Louis is UTC-5, which is one hour behind Miami.

  • Flights from MIA to STL start from 06:15 — the earliest with Southwest Airlines. The last service of the day is at 21:22 with American Airlines. In total, you can take your pick of 18 weekly Miami International Airport to Lambert-St. Louis International Airport flights.

  • Arriving two hours before an international flight and one hour ahead of a domestic departure are travel rules worth sticking to. Be at the airport with enough time to board your MIA to STL flight.

  • During popular months such as July, you'll want to get to the airport earlier. Plan to arrive two hours before domestic departures and four hours ahead for international flights whenever you're flying during peak periods in general.

  • American Airlines offers direct flights from Miami International Airport to Lambert-St. Louis International Airport. Book with this popular carrier, then get ready to see the sights in St Louis — and maybe even more of United States if you have time.

  • The majority of travellers choose to travel with American Airlines on this route.

  • With 78.26% of its services arriving as planned, American Airlines is the most punctual carrier offering MIA to STL flights.

  • We make it a cinch to book a flight with a stopover. To see all your options for tickets from Miami International Airport to Lambert-St. Louis International Airport, uncheck 'Direct flights only.' Then, choose a flight with a stop long enough to explore the city of your choice. Worthwhile stopovers between MIA and STL include:

    • Hartsfield-Jackson Atlanta International Airport

    • Orlando International Airport

    • Tampa International Airport

How to find the cheapest flights from Miami International Airport (MIA) to Lambert-St. Louis International Airport (STL)

  • C$116 is currently the best price for a one-way Miami International Airport to Lambert-St. Louis International Airport flight. A return flight starts from C$246. These fares may change depending on demand and availability.

  • To get cheap tickets from MIA to STL, book your journey six months before your planned departure.

  • May is the cheapest month for flights from Miami International Airport to Lambert-St. Louis International Airport. If you'd like to travel during a different time of year, the 'Whole month' tool will show you the lowest prices for every month.

  • You don't need to check every day to find out if fares have dropped when you create a Price Alert. We'll notify you the moment a special offer becomes available on cheap flights from MIA to STL.

  • Select your preferred arrival and departure times, airlines and number of stops with the filters. Alternatively, sort your results by 'Cheapest' to find the best deals on flights from Miami International Airport to Lambert-St. Louis International Airport.

Handy information about Miami International Airport (MIA)

  • MIA is located at 4200 N.W. 21 Street.

  • When it comes to the on-time performance of Miami International Airport, data shows 76.14% of flights meet their scheduled arrival time.

  • Miami International Airport is about 16 kilometres from central Miami. If you're catching a cab, ride-sharing or driving from the centre, it'll take you 20 minutes or so to get there, depending on the traffic.

  • Taking public transport? Expect a journey time of around 1 hour 20 minutes.

  • Booked an early flight from Miami International Airport to Lambert-St. Louis International Airport? Avoid rushing to the airport (and enjoy a little extra shut-eye) by picking one of these stays close to MIA:

Arriving at Lambert-St. Louis International Airport (STL)

Getting from Lambert-St. Louis International Airport (STL) to central St Louis

  • The address for STL is 10701 Lambert International Blvd..

  • Lambert-St. Louis International Airport is roughly 26 kilometres from central St Louis. The drive time takes about 20 minutes.

  • If you're taking public transport, expect a journey time of about 35 minutes.

When to fly to Lambert-St. Louis International Airport (STL)

  • It's time to choose your trip dates for your flight from Miami International Airport to Lambert-St. Louis International Airport. July is the most popular month to visit St Louis. If you prefer a more laid-back vibe, go in April.

  • The warmest month in St Louis is July, with the temperature ranging between 17ºC (63ºF) and 33ºC (91ºF). Book your flights from Miami International Airport to Lambert-St. Louis International Airport in this month if this is the type of weather you like.

  • Search for cheap tickets from MIA to STL in January if you like cooler conditions. Temperatures are at their lowest around then, ranging between -8ºC (18ºF) and 7ºC (45ºF) on average.

Explore more of United States

  • Chicago is just one of the many places in United States waiting to be discovered once you've seen St Louis. Around 418 kilometres away to the north-east, its top attractions include Millennium Park, Art Institute of Chicago and LandShark Beer Garden at Navy Pier.

  • Around 370 kilometres east of St Louis, Indianapolis is another essential stop in United States. Get a taste of what this destination has to offer at The Children's Museum of Indianapolis, Indianapolis Museum of Art and Indianapolis Zoo.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.