Cheap flights from St. Louis to Florida Keys from $87
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Florida Keys departing on 5/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from St. Louis to Florida Keys
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
Cheap direct flights
American Airlines flights from St. Louis to Florida Keys
Our best American Airlines deals on St. Louis to Florida Keys flight tickets
Delta flights from St. Louis to Florida Keys
Our best Delta deals on St. Louis to Florida Keys flight tickets
See travel insights to Florida Keys from
How to get the cheapest flight ticket from St. Louis to Florida Keys
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Florida Keys?
The month of August is another great option to travel to Florida Keys, with average flight prices from St. Louis averaging around $318.
What is the cheapest day to depart on your flight to Florida Keys?
The cheapest day to depart from St. Louis to Florida Keys is on a Friday when prices can be found for as low as $536. The most expensive day to fly to Florida Keys is Thursday, with ticket prices averaging around $591.
What is the cheapest time of day to depart on your flight to Florida Keys?
According to our data, the cheapest time of day to fly to Florida Keys is in the evening. momondo users have found flights departing from St. Louis to Florida Keys in the evening for as low as $482. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights at noon are often more expensive with an average ticket price of $635.
How far in advance should I book a flight to Florida Keys?
You are more likely to see cheaper flights to Florida Keys from St. Louis when booking 4 weeks ahead of your departure date. In general, you can expect to find flights to Florida Keys for around $395 when searching 4 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Florida Keys from St. Louis for as low as $366 on momondo.
What is the cheapest airline that flies from Lambert-St Louis to Florida Keys?
Frontier, American Airlines, and Delta are the most popular carriers operating from Lambert-St Louis to Florida Keys
What airlines fly to Florida Keys?
American Airlines, Delta and United Airlines are the top three most popular airlines that fly to Florida Keys from St. Louis according to our data. American Airlines is the first choice among our users, with 67% of people opting to fly with this airline when traveling to Florida Keys. Keep in mind that there are 3 different airlines that fly to Florida Keys on a routine basis, so you have a few additional options to choose from.
Cheap St. Louis to Florida Keys flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from St. Louis to Florida Keys
Best Price Found | $87 |
|---|---|
Fastest flight time | 2h 40m |
Direct flights | Every day |
Airports in Florida Keys | 2 airports |
When did momondo last update prices for flights from Lambert-St Louis Airport to Florida Keys?
Prices for flights from Lambert-St Louis Airport to Florida Keys were last updated today.
How many operators does momondo search for flights from Lambert-St Louis Airport to Florida Keys?
As of April 2025, there are 6 operators available to choose from for flights from Lambert-St Louis Airport to Florida Keys.
How old do you have to be to fly from Lambert-St Louis Airport to Florida Keys?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Florida Keys.
What documentation or ID do you need to fly to Florida Keys?
The required travel and health documents for your Florida Keys trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Florida Keys. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from St. Louis to Florida Keys?
momondo data reveals that the most frequently booked plane model on the route from St. Louis to Florida Keys is Boeing 737-800 Passenger/BBJ2 (winglets), representing 18.67% of all bookings. The subsequent popular models are Boeing 737-700 Passenger/BBJ1 (winglets) at 18.58%, Boeing 737 MAX 8 at 16.97%, and Embraer 175 at 6.38%.
Best airlines flying from St. Louis to Florida Keys
Compare and see reviews for airlines that fly from St. Louis to Florida Keys with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $219 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $229 | Free Cancellation | Rating 8.0 7,919 reviews | |||
| PriceFrom $268 | Free Cancellation | Rating 7.4 8,685 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from St. Louis to Florida Keys?
Finding the right flight to Florida Keys from St. Louis is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Florida Keys quick and easy, saving you time and money.
Can I find flights from St. Louis to Florida Keys with flexible booking policies on momondo?
Flights from St. Louis to Florida Keys with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.
How can momondo help me find flights from St. Louis to Florida Keys?
Once all potential St. Louis to Florida Keys flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.
I’m not ready to book a flight from St. Louis to Florida Keys right now. Can momondo alert me if prices change?
Of course. momondo tracks the price of St. Louis to Florida Keys flights. All you need is a valid email address and we will do the rest; it is that quick and easy.