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Cheap flights from St. Louis to Florida Keys from $90

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 5/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from St. Louis to Florida Keys

Cheap round-trip flights

KAYAK's recommended round-trip deals from the most popular airlines that fly from St. Louis to Florida Keys.
Southwest Logo
5:55 pm - 9:35 pmSTL-MIA
2h 40mnonstop
Southwest Logo
7:55 am - 9:50 amMIA-STL
2h 55mnonstop
$179Southwest
Find Deal
Tue, May 6 - Wed, May 14
American Airlines Logo
5:35 am - 9:20 amSTL-MIA
2h 45mnonstop
American Airlines Logo
3:30 pm - 5:29 pmMIA-STL
2h 59mnonstop
$189American Airlines
Find Deal
Wed, Apr 30 - Wed, May 7
Delta Logo
1:46 pm - 9:18 pmSTL-MIA
6h 32m1 stop
Delta Logo
8:40 am - 1:19 pmMIA-STL
5h 39m1 stop
$199Delta
Find Deal
Tue, May 6 - Tue, May 13
Frontier Logo
8:15 pm - 5:22 amSTL-MIA
8h 07m1 stop
Frontier Logo
6:00 am - 9:59 amMIA-STL
28h 59m1 stop
$200Frontier
Find Deal
Sat, May 3 - Fri, May 9
Delta Logo
12:46 pm - 7:48 pmSTL-MIA
6h 02m1 stop
Delta Logo
5:59 pm - 11:38 pmMIA-STL
6h 39m1 stop
$209Delta
Find Deal
Wed, Apr 30 - Wed, May 7
Frontier Logo
6:51 pm - 4:59 amSTL-MIA
9h 08m1 stop
Frontier Logo
6:00 am - 10:01 amMIA-STL
29h 01m1 stop
$210Frontier
Find Deal
Sat, Apr 19 - Sun, Apr 27
American Airlines Logo
5:35 am - 9:20 amSTL-MIA
2h 45mnonstop
American Airlines Logo
3:30 pm - 5:29 pmMIA-STL
2h 59mnonstop
$214American Airlines
Find Deal
Wed, Apr 30 - Wed, May 7
Southwest Logo
5:55 pm - 9:35 pmSTL-MIA
2h 40mnonstop
Southwest Logo
7:00 am - 11:50 amMIA-STL
5h 50m1 stop
$224Southwest
Find Deal
Tue, May 6 - Wed, May 14
Spirit Airlines Logo
8:44 am - 6:53 pmSTL-MIA
9h 09m1 stop
Spirit Airlines Logo
7:58 pm - 7:49 amMIA-STL
12h 51m1 stop
$255Spirit Airlines
Find Deal
Fri, Sep 5 - Sun, Sep 14
Spirit Airlines Logo
10:10 am - 8:04 amSTL-MIA
20h 54m2 stops
Spirit Airlines Logo
9:08 am - 3:22 pmMIA-STL
7h 14m1 stop
$283Spirit Airlines
Find Deal
Sat, Jun 7 - Sun, Jun 15

Southwest flights from St. Louis to Florida Keys

Our best Southwest deals on St. Louis to Florida Keys flight tickets
Southwest
May 6
STL5:55 pmLambert-St Louis
2h 40m
MIA9:35 pmMiami
May 14
MIA7:55 amMiami
2h 55m
STL9:50 amLambert-St Louis
Southwest
May 6
STL5:55 pmLambert-St Louis
2h 40m
MIA9:35 pmMiami
May 14
MIA7:00 amMiami
5h 50m
1 stop
STL11:50 amLambert-St Louis
Southwest
Apr 30
STL2:55 pmLambert-St Louis
6h 00m
1 stop
MIA9:55 pmMiami
May 7
MIA7:55 amMiami
2h 55m
STL9:50 amLambert-St Louis

American Airlines flights from St. Louis to Florida Keys

Our best American Airlines deals on St. Louis to Florida Keys flight tickets
American Airlines
Apr 30
STL5:35 amLambert-St Louis
2h 45m
MIA9:20 amMiami
May 7
MIA3:30 pmMiami
2h 59m
STL5:29 pmLambert-St Louis
American Airlines
Apr 30
STL5:35 amLambert-St Louis
2h 45m
MIA9:20 amMiami
May 7
MIA3:30 pmMiami
2h 59m
STL5:29 pmLambert-St Louis
American Airlines
May 28
STL6:20 pmLambert-St Louis
2h 48m
MIA10:08 pmMiami
Jun 4
MIA3:30 pmMiami
2h 59m
STL5:29 pmLambert-St Louis

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 8 weeks ahead of your departure date. In general, you can expect to find flights to Florida Keys for around $391 when searching 8 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 $355 on momondo.

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

$90

Fastest flight time

2h 40m

Direct flights

Every day

Airports in Florida Keys

2 airports
The best one-way flight to Florida Keys from St. Louis in the past 72 hours is $90. The best round-trip flight deal from St. Louis to Florida Keys found on momondo in the last 72 hours is $179.
The fastest flight from St. Louis to Florida Keys takes 2h 40m
Direct flights go from St. Louis to Florida Keys every day.
There are 2 airports near Florida Keys: Key West (EYW), Miami (MIA)

  • 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?

  • 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?


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
American AirlinesPriceFrom $225Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $237Free CancellationRating
8.0
7,901 reviews
Search Delta flights
United AirlinesPriceFrom $268Free CancellationRating
7.4
8,618 reviews
Search United Airlines flights

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.


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Popular cities in Florida Keys

Popular flights according to clicks in the last 7 days on momondo