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Cheap flights from St Louis to Key West (STL - EYW)

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The best prices from St Louis to Key West are usually found in August or July, booked 40 days in advance, depart on a Tuesday or Saturday and return on a Friday

How to find the cheapest flight from
St Louis (STL) to Key West (EYW)

STL - EYW
Price
$232 - $555
EYW
Temperature
77 - 91.4 °F
EYW
Rainfall
1.1 - 6.6 inches

Popular in

March

High demand for flights, 28% potential price rise

Cheapest in

August

Best time to find cheap flights, 42% potential price drop

Round-trip from

$232

From St Louis to Key West

One-way from

$148

One-way flight from St Louis to Key West

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest day to fly round-trip from St Louis to Key West?

Leaving on a Monday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 28% on the overall cost on flights from St Louis to Key West.

How far in advance should I book a flight from St Louis to Key West?

Find a great deal and save up to 40% by booking at least 37 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from St Louis to Key West within the next two weeks, with the cheapest ticket starting at $480.

What is the cheapest month to fly from St Louis to Key West?

Flights from St Louis to Key West lean towards being more expensive in December. Prices are generally better when you fly from St Louis to Key West in August, with the cheapest ticket starting at $181.

When is the cheapest time to fly from St Louis to Key West (STL - EYW)?

One of the essential ways to save on airfare from St Louis to Key West is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 19% on airfare.

Cheap flights from St Louis to Key West in December, January 2021

The best prices found for STL to EYW flights for December, January
15 Jan - 18 Jan
$202pp
STL
Lambert-St Louis
Multiple Airlines
   
2 STOPS
EYW
Key West
EYW
Key West
Multiple Airlines
   
2 STOPS
STL
Lambert-St Louis
8 Jan - 15 Jan
$214pp
STL
Lambert-St Louis
Multiple Airlines
   
2 STOPS
EYW
Key West
EYW
Key West
Multiple Airlines
   
2 STOPS
STL
Lambert-St Louis
21 Jan - 24 Jan
$229pp
STL
Lambert-St Louis
Multiple Airlines
   
2 STOPS
EYW
Key West
EYW
Key West
Multiple Airlines
   
2 STOPS
STL
Lambert-St Louis

St Louis to Key West 2021 flight deals

Cheap flights to Key West from St Louis found for this year
19 Dec - 22 Dec
$265pp
STL
Lambert-St Louis
Multiple Airlines
   
2 STOPS
EYW
Key West
EYW
Key West
Multiple Airlines
 
1 STOP
STL
Lambert-St Louis
24 Dec - 29 Dec
$275pp
STL
Lambert-St Louis
American Airlines
   
2 STOPS
EYW
Key West
EYW
Key West
American Airlines
   
2 STOPS
STL
Lambert-St Louis
23 Dec - 28 Dec
$276pp
STL
Lambert-St Louis
American Airlines
   
2 STOPS
EYW
Key West
EYW
Key West
American Airlines
   
2 STOPS
STL
Lambert-St Louis

Last minute flights from St Louis to Key West

Late deals on round-trip flights to Key West from St Louis, departing today and this week
8 Dec - 14 Dec
$318pp
STL
Lambert-St Louis
Multiple Airlines
 
1 STOP
EYW
Key West
EYW
Key West
Multiple Airlines
 
1 STOP
STL
Lambert-St Louis
8 Dec - 14 Dec
$326pp
STL
Lambert-St Louis
Multiple Airlines
   
2 STOPS
EYW
Key West
EYW
Key West
Multiple Airlines
 
1 STOP
STL
Lambert-St Louis
8 Dec - 14 Dec
$338pp
STL
Lambert-St Louis
Multiple Airlines
 
1 STOP
EYW
Key West
EYW
Key West
Multiple Airlines
     
3 STOPS
STL
Lambert-St Louis

One-way flights to Key West from St Louis

The cheapest one-way flights from St Louis to Key West
12:16 pm - 10:05 am
Multiple Airlines
1 Stop
20h 49m
STL - EYW
Multiple Airlines
$161
Kiwi.com
4:21 am - 2:58 pm
American Airlines
2 Stops
9h 37m
STL - EYW
American Airlines
6:33 am - 10:05 am
Multiple Airlines
2 Stops
26h 32m
STL - EYW
Multiple Airlines
$167
Gotogate

Related info for your journey

Useful info, stats and facts about St Louis to Key West flights.

Flight FAQs

From St Louis to Key West

Are flight prices decreasing from St Louis to Key West due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both St Louis and Key West for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

What safety measures are being taken by airlines flying from Lambert-St Louis to Key West to control the spread of COVID-19?

Airlines globally have implemented additional safety measures to accommodate you. Delta is one of them. Airline carriers are regularly disinfecting and sanitizing their aircraft. Masks are provided and are mandatory while on board. Pre-flight testing for symptoms and antibodies, alongside socially distanced seating (for a limited time) will work towards keeping travelers safer while flying from Lambert-St Louis to Key West. Policies will vary by airline.

Which airlines flying from Lambert-St Louis to Key West have flexible cancellations due to COVID-19?

Some of our airline partners flying from Lambert-St Louis to Key West have new flexible policies in place due to COVID-19. American Airlines, Delta, and United Airlines are some of the carriers where you may find flexible cancellation policies. You can use our site to filter for airlines like American Airlines with this kind of flexibility.

Can I find flights from St Louis to Key West for under $300 on Cheapflights?

Yes, there are multiple flights from St Louis to Key West for under $300. The cheapest flight booked recently is on Multiple Airlines for just $201, but on average you can expect to pay $239.

Are there nonstop flights from St Louis to Key West for under $200 on Cheapflights?

There are no nonstop flights from St Louis to Key West, but Cheapflights can provide you with all the information you need to find the fastest route with the fewest stops.

Are there last-minute flights available from St Louis to Key West for under $400?

There are currently 5+ open flights from St Louis to Key West within the next 7 days for less than $400.

How popular is this flight route?

Within the past month, 35 users have taken a look at flights from Lambert-St Louis to Key West.

Does it rain more in St Louis or Key West?

When traveling, it's generally smart to pack in preparation for rain or any other conditions that may arise. The rainfall in St Louis is roughly similar to Key West. You can assume this to be the case over the next 14 days.

Is St Louis weather warmer or cooler than Key West?

We forecast the temperature to be around the 91 °F's in August, on average. The temperature in Key West is generally hotter than in St Louis. Book flights in a timely manner in correlation to your departure date.

How long is the flight from St Louis to Key West?

American Airlines can get you from St Louis to Key West in just under 4h 47m. Your travel time can differ by up to .

What is the cheapest airline to fly from St Louis to Key West round-trip?

Currently priced at $255, American Airlines will fly you from St Louis to Key West and back. In addition to American Airlines, many other airlines offer competitively priced options for your trip. Users have found that American Airlines is 35% cheaper than the other options available to this destination.

What are the cheapest airlines to fly from St Louis to Key West one-way?

One-way options have recently been found by users for as low as $148 on American Airlines.

Alternative routes for St Louis to Key West

Destination information for Key West

Things to know before you go. Useful info for your trip from St Louis to Key West
Average temperature for December in Key West
77.0 °F
Avg rainfall for December in Key West
1.9 ″

Airports servicing St. Louis

Airports servicing Key West

Top 3 airlines from St Louis to Key West

The chart below displays the airlines Cheapflights users traveling from St Louis to Key West choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.

Airline Cheapest Average Flexibility On-time COVID-19 safety
American Airlines
$248 $472 No cancel fee 71%
United Airlines
$258 $534 No cancel fee 69%
Delta
$271 $537 No cancel fee N/A
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