Cheap flights from Jacksonville, FL to Key West, FL
Flights starting at $118. Choose between Silver Airways, Allegiant Air, or Frontier Airlines to find the best price.
Make your travel wishlist, we'll do the rest
Hidden deals
Kiwi-Code uncovers prices airlines don't want you to see.
Effortless booking
Use our flexible filters to tailor your search.
Travel hacking
Look out for the travel hack star icon for even cheaper fares.
Tips to know when travelling to Key West
Cheapest one-way trip | $118 |
---|---|
Cheapest round-trip | $281 |
Average round-trip | $388 |
Includes rare itinerary | |
Most popular airline | Silver Airways |
Looking for a different city?
Receive exclusive deals by email
By subscribing you agree to receive offers according to the conditions described in our Privacy Policy.
The most popular airlines for this route are Silver Airways, Allegiant Air, Frontier Airlines, Spirit Airlines, and United Airlines. Jacksonville and Key West have 129 direct flights per week.
Check-in for a flight from Jacksonville to Key West
Name | Carrier code | IATA Code | Passport needed during booking | Online check-in available |
---|---|---|---|---|
Silver Airways | SIL | 3M | No | Opens 24 days before flight Closes 2 hours before flight |
Allegiant Air | AAY | G4 | No | Opens 24 days before flight Closes 1 hours before flight |
Frontier Airlines | FFT | F9 | No | Opens 24 days before flight Closes 1 hours before flight |
Spirit Airlines | NKS | NK | No | Opens 24 days before flight Closes 1 hours before flight |
United Airlines | UAL | UA | Yes | No |
Weather in Key West
Average Weather
Month | Average monthly max temperature | Average monthly min temperature |
January | 22°C | 20°C |
February | 23°C | 21°C |
March | 23°C | 22°C |
April | 25°C | 24°C |
May | 26°C | 25°C |
June | 28°C | 27°C |
July | 29°C | 28°C |
August | 29°C | 28°C |
September | 29°C | 28°C |
October | 27°C | 26°C |
November | 25°C | 24°C |
December | 24°C | 22°C |
14 day forecast
Frequently asked questions
Planning a trip? Thanks to our Virtual Interlining algorithm, we offer billions of route combinations between any A and any B in the world by plane, train, and bus. Find the cheapest routes and best deals for you, as well as the best dates on which to travel.
Explore alternative trips
Flights from Jacksonville
- Flights from Jacksonville to Chicago
- Flights from Jacksonville to Philadelphia
- Flights from Jacksonville to Las Vegas
- Flights from Jacksonville to Denver
- Flights from Jacksonville to Cincinnati
- Flights from Jacksonville to Norfolk
- Flights from Jacksonville to Los Angeles
- Flights from Jacksonville to Pittsburgh
- Flights from Jacksonville to Washington, D.C.
- Flights from Jacksonville to Indianapolis
- Flights from Jacksonville to Cleveland
- Flights from Jacksonville to San Diego
- Flights from Jacksonville to Phoenix
- Flights from Jacksonville to Grand Rapids
- Flights from Jacksonville to Seattle
- Flights from Jacksonville to Detroit
- Flights from Jacksonville to Sacramento
- Flights from Jacksonville to Minneapolis
- Flights from Jacksonville to London
- Flights from Jacksonville to Houston
Flights to Key West
- Flights from Philadelphia to Key West
- Flights from Tampa to Key West
- Flights from Washington, D.C. to Key West
- Flights from Denver to Key West
- Flights from Orlando to Key West
- Flights from Atlanta to Key West
- Flights from Detroit to Key West
- Flights from Chicago to Key West
- Flights from Fort Lauderdale to Key West
- Flights from New York to Key West
- Flights from Cleveland to Key West
- Flights from Pittsburgh to Key West
- Flights from Minneapolis to Key West
- Flights from Boston to Key West
- Flights from Raleigh to Key West
- Flights from Las Vegas to Key West
- Flights from Columbus to Key West
- Flights from Dallas to Key West
- Flights from Atlantic City to Key West
- Flights from Hartford to Key West
Popular routes
- Flights from Los Angeles to Guadalajara
- Flights from New York to London
- Flights from Dallas to Pereira
- Flights from Minneapolis to Granada
- Flights from Bilbao to Warsaw
- Flights from Madrid to Kaunas
- Flights from Hamburg to Helsinki
- Flights from San Francisco to Las Vegas
- Flights from Istanbul to Naxos
- Flights from Ho Chi Minh City to Dumaguete
- Flights from Cartagena to Syracuse
- Flights from Frankfurt to Adana
- Flights from Rio de Janeiro to Kraków