When is the cheapest time of year to fly from Philadelphia to Key West?

Based on statistics over the past years, the lowest prices for flights from Philadelphia to Key West can be found flying in these months: .

Cheap Flights from Philadelphia to Key West

Cheapest flights from Philadelphia to Key West

Flaut.Travel was designed and developed by a team dedicated to making the process of searching, comparing and booking airline tickets as easy and convenient as possible. Our service helps travelers to find and buy the cheapest flights from Philadelphia to Key West. We have connected more than 40 airlines and airline ticketing agencies to help you find the most suitable and affordable flight option.

Cheapest one way flight

$91

Spirit Airlines

1 layover

22h 16m

01/21/2026

The cheapest one-way flight from Philadelphia to Key West departs on 01/21/2026, is operated by Spirit Airlines and costs $91

Cheapest round trip flight

$197

Spirit Airlines

1 layover

1d 16h 59m

01/21/2026

The cheapest roundtrip flight from Philadelphia to Key West departs on 01/21/2026, is operated by Spirit Airlines and costs $197

The fastest flight

22h 16m

Fastest flight from Philadelphia to Key West takes 22h 16m

Direct flights

No direct flights

There are no direct flights on this route.

Earliest flight

8:15 AM

Latest flight

10:45 AM

Direct flights count

16

Distance

1820km

Timezone difference

0h

The distance between Philadelphia and Key West is 1820km (1128 miles). There are 16 direct flights from Philadelphia to Key West. Philadelphia and Key West are in the same time zone. Flights from Philadelphia begin at 8:15 AM. The latest flight from Philadelphia departs at 10:45 AM

Remember that on average the ideal time to book flights is 2 months before departure!

Airfare from Philadelphia to Key West by month

We carefully collect statistics on the search and pricing of airlines and, based on these data, we make an assumption about future prices. Thus, you can better understand which season is the cheapest to fly from Philadelphia to Key West

Avg Price

Airlines operating on route

The Philadelphia — Key West route is served by multiple airlines, including American Airlines and Spirit Airlines. This is convenient for those who want the best balance of price, schedule, and travel conditions. Tickets start from $91, and depending on season and promotions, even better deals may appear. With our service, you can easily compare available options and book tickets that match your plans. The variety of carriers allows flexible choices and comfortable travel without overpaying.

American Airlines

starting at $554

Spirit Airlines

starting at $91

Non-stop flights from Philadelphia to Key West

A non-stop flight is the most convenient and comfortable way to fly from Philadelphia to Key West, despite the fact that sometimes flights with transfers can cost significantly less.

Philadelphia — Key West

PHL — EYW

01/21/2026

Departure

Direct flight

AA4442

starting at $554

Schedule of direct flights from Philadelphia to Key West

A direct flight is the easiest way to get to your destination. The following airlines operate non-stop flights from Philadelphia to Key West:

Unable to find information about the schedule of direct flights from

Philadelphia airports overview

Philadelphia International Airport

•

PHL

11km

Trenton-Mercer Airport

•

TTN

47km

Serves Trenton and central New Jersey, offering regional and limited international flights with easy access to downtown and nearby highways for convenient connections.

•

Key West airports overview

Key West International Airport

•

EYW

3km

•

Frequently asked questions (FAQ)

Answers to questions about the route that travelers are most interested in.

What is the cheapest price for flights from Philadelphia to Key West?

The cheapest flight ticket from Philadelphia to Key West according to data for the last 48 hours costs $91

When is the best time to buy air tickets on the route Philadelphia — Key West?

Often the best time to buy tickets from Philadelphia to Key West is 2 months before departure.

How long does it take to fly from Philadelphia to Key West?

The fastest flights from Philadelphia to Key West start from 22 hours 16 minutes in the air.

Which airline can fly direct from Philadelphia to Key West?

The following airlines operate direct flights on the route Philadelphia — Key West: American Airlines

Special offers and sales on air tickets from Philadelphia to Key West

We keep tight track on airlines' pre-holidays sales and other special offers occurences all the time to let you save maximum amount of funds while traveling to your family or just going out on vacation.

We couldn't find any special offers for flights from Philadelphia to Key West

Alternative routes

Allentown ➜ Key West•Atlantic City ➜ Key West•Baltimore ➜ Key West•Lancaster ➜ Key West•New York ➜ Key West•Philadelphia ➜ Cienfuegos•Philadelphia ➜ Fort Lauderdale•Philadelphia ➜ Lakeland•Philadelphia ➜ West Palm Beach•Philadelphia ➜ Santa Clara•Philadelphia ➜ Sarasota•Philadelphia ➜ Tampa

•••••••••••••••••••

Cheapest one way flight

$91

Spirit Airlines

1 layover

22h 16m

01/21/2026

The cheapest one-way flight from Philadelphia to Key West departs on 01/21/2026, is operated by Spirit Airlines and costs $91

Cheapest round trip flight

$197

Spirit Airlines

1 layover

1d 16h 59m

01/21/2026

The cheapest roundtrip flight from Philadelphia to Key West departs on 01/21/2026, is operated by Spirit Airlines and costs $197

The fastest flight