Flights
Hotels
From
To
1 traveler
Unsupported Browser!
Find Flights
Finding cheap flights is simple. More than 36 million people last year saved hundreds by using our flights tool.

Flights
Hotels
Round-trip
One-way
1 traveler
Unsupported Browser!
Find Flights
Finding cheap flights is simple. More than 36 million people last year saved hundreds by using our flights tool.
Did you mean flights from Key West to St Louis?

Flights from St Louis to Key West, United States Last modified: Sep 24, 2016 2:42 AM

TIPSave $307 by flying into West Palm Beach instead of Key West from St Louis

St Louis to Key West Last modified: Sep 24, 2016 2:42 AM

We've scanned 21,800,526,162 round trip itineraries and found the cheapest flights from St Louis to Key West. American & United frequently offer the best deals on St Louis to Key West flights, or select your preferred carrier below to see the cheapest days to fly.

American
STLEYW
Sat 1/21
1 stop
EYWSTL
Tue 1/24
1 stop
$326
Select
United
STLEYW
Tue 1/10
2 stops
EYWSTL
Tue 1/17
2 stops
$334
Select
United
STLEYW
Sat 1/21
2 stops
EYWSTL
Tue 1/24
2 stops
$334
Select

How Much is a Flight from St Louis to Key West?

We have collected flight cost data from across the web for travel from St Louis to Key West, and have found the average flight price for this trip to be $373.

Where To Buy Cheap Flights from St Louis to Key West?

The best way to find a great deal on airfare is to search multiple sites. When you run a search on FareCompare, we search multiple sites and fare sources all at once so you don't have to - which is why we thinking FareCompare is the best place to find cheap tickets. Airlines can adjust prices for tickets from St Louis to Key West based on the day and time that you decide to book your flight. We have collected data from all airlines, and have found that Tuesdays, Wednesdays, and Saturdays are often the best days to book flights. If you'd like to learn more, read our article about the best time to buy airline tickets.

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

The chart below shows up-to-date information regarding how far in advance to book your flight from St Louis to Key West.

Non Stop versus Connecting
Advanced PurchaseNon StopConnecting
< 7 days $0 $0
7-14 days $0 $520
14-21 days $0 $431
21-30 days $0 $352
30-60 days $0 $352
60-90 days $0 $341
90+ days $0 $326

Cheapest Day To Fly from St Louis to Key West

We've examined 21,808,054,587 itinerary searches that we've seen for departures in the next 90 days and found that the cheapest day to fly from St Louis to Key West is Wednesday. See the chart below to compare prices for other days of the week.

Monday Tuesday Wednesday Thursday Friday Saturday Sunday
$352 $352 $341 $362 $359 $411 $429

Compare Flight Prices from St Louis to Key West by Month

Low priced flights are most commonly available by purchasing between one and three months in advance. International or holiday flights may need to be purchased even further in advance. The chart below shows the cheapest flight prices by month for St Louis to Key West flights.

Month Origin Destination Carrier Depart Date Return Date Stops Price
October St Louis Key West United 10/24/16 11/2/16 2 $352
November St Louis Key West American 11/30/16 12/4/16 1 $341
December St Louis Key West American 12/2/16 12/4/16 1 $360
January St Louis Key West American 1/21/17 1/24/17 1 $326
February St Louis Key West United 2/11/17 2/14/17 2 $334
April St Louis Key West American 4/26/17 5/3/17 1 $356
May St Louis Key West American 5/7/17 5/13/17 1 $466
August St Louis Key West American 8/1/17 8/8/17 1 $359

Cheap Last Minute Flights from St Louis to Key West

Looking for cheap last minute flights or a weekend getaway? We've got you covered with weekend flight deals from St Louis to Key West. The chart below shows the best last minute deals and cheap flights this weekend we could find.

Next 30 Days

SunMonTueWedThuFriSat
2 3 4 5 6 7 8
$763
9 10 11 12 13 14 15
$763 $592
16 17 18 19 20 21 22
$592 $457
23 24 25 26 27 28 29
$457

Connecting Flights vs Direct Flights from St Louis to Key West

Flights between some cities may be significantly cheaper if you choose a multi-stop airline ticket. Although these connecting flights sacrifice some convenience, on average, travelers save 20%-60% when they choose to fly multi-stop versus a direct flight.

The average price for connecting flights from St Louis to Key West is $376.

The average price for direct flights from St Louis to Key West is not available.

One Way Flights vs Round Trip Flights from St Louis to Key West

We have found that there is often no price difference between buying a round trip flight versus a one way flight. Increased flexibility is the main benefit when it comes to buying a one way flight from St Louis to Key West. However, booking a round trip flight can be a simpler process. You can compare round trip and one way flights by using our flight comparison.

The average price for one way flights from St Louis to Key West is not available.

The average price for round trip flights from St Louis to Key West is $376.

St Louis to Key West Flight Questions

Below are some common questions that asked about this flight route:

Question: What are the most popular connecting cities when flying from St Louis to Key West?
Answer: Chicago, IL

Airlines in St Louis flying to Key West Last modified: Sep 24, 2016 2:43 AMNumber of routes searched: 44Number of itineraries searched: 11,009

Wondering which airlines fly out of St Louis to Key West? We've gathered the average price of St Louis airlines with flights to Key West. Different airlines offer different levels of comfort and service, so consider convenience when choosing your airline.

Below is the full flight schedule summary showing which days of the week individual carriers offer flights for the next 30 days.

St Louis to Key West
Airline Connections Mon Tue Wed Thu Fri Sat Sun
American CLT
American MIA
American ORD / MIA
American ORD / CLT
United ORD / RSW
United IAH / FLL
United ORD / FLL
Delta ATL
United ORD / MCO
United EWR
American DCA
Delta DTW / ATL
Delta CVG / ATL
Delta LGA / ATL
Delta MSP / ATL

St Louis to Key West Airports

These are the major commercial airports we're currently monitoring in St Louis and Key West. If your route includes a city with multiple airports, you may be able to find substantial savings by choosing an alternate airport.

Farecompare Research Tools

FareCompare's Flight Schedule Search Tool helps you find information about airline schedule filings, including flight numbers, depart times, and travel distance.

Cheap Domestic Flights from St Louis - STL

FlightsAirlineLowest Price
Flights from St Louis to Miami American, Alaska, Delta $309
Flights from St Louis to Ft Lauderdale American, Alaska, Delta, United $304
Flights from St Louis to Orlando American, Delta, Frontier, United $157
Flights from St Louis to Atlanta American, Delta, Frontier $49
Flights from St Louis to Ft Myers American, Delta, Frontier, United $137
Flights from St Louis to Tampa American, Delta, United $309
Flights from St Louis to Dallas - Ft Worth American, Alaska $213
Flights from St Louis to West Palm Beach American, Delta, United $323
Flights from St Louis to Chicago American, United $217
Flights from St Louis to New York American, Alaska, Delta, United $251
Flights from St Louis to Sarasota - Bradenton American, Delta, United $314

Cheap International Flights from St Louis - STL

FlightsAirlineLowest Price
Flights from St Louis to Cancun American, Air Canada, AeroMexico, Alaska, British Airways, Delta, Frontier, United $307
Cheap Flights from St Louis to Key West