$108 Cheap Flights from Philadelphia (PHL) to Key West (EYW)

View $108 flight on Sun, Nov 16, 2025Opens in a new window

Popular airlines from Philadelphia Intl. Airport (PHL) to Key West Intl. Airport (EYW)

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Cheap Flights from Philadelphia to Key West (PHL-EYW)

Prices were available within the past 7 days and start at $108 for one-way flights and $215 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Spirit Airlines
Sat, Jan 24 - Sat, Jan 31
PHL
Philadelphia
EYW
Key West
$215 Roundtrip, just found
$215
Roundtrip
just found
Select Spirit Airlines flight, departing Sat, Jan 24 from Philadelphia to Key West, returning Sat, Jan 31, priced at $215 just found
Spirit Airlines
Tue, Feb 3 - Thu, Feb 5
PHL
Philadelphia
EYW
Key West
$225 Roundtrip, just found
$225
Roundtrip
just found
Select Spirit Airlines flight, departing Tue, Feb 3 from Philadelphia to Key West, returning Thu, Feb 5, priced at $225 just found
Spirit Airlines
Sat, Jan 24 - Wed, Jan 28
PHL
Philadelphia
EYW
Key West
$243 Roundtrip, found 3 hours ago
$243
Roundtrip
found 3 hours ago
Select Spirit Airlines flight, departing Sat, Jan 24 from Philadelphia to Key West, returning Wed, Jan 28, priced at $243 found 3 hours ago
Spirit Airlines
Sat, Jan 31 - Tue, Feb 3
PHL
Philadelphia
EYW
Key West
$244 Roundtrip, found 2 hours ago
$244
Roundtrip
found 2 hours ago
Select Spirit Airlines flight, departing Sat, Jan 31 from Philadelphia to Key West, returning Tue, Feb 3, priced at $244 found 2 hours ago
Spirit Airlines
Mon, Feb 2 - Thu, Feb 5
PHL
Philadelphia
EYW
Key West
$245 Roundtrip, found 1 day ago
$245
Roundtrip
found 1 day ago
Select Spirit Airlines flight, departing Mon, Feb 2 from Philadelphia to Key West, returning Thu, Feb 5, priced at $245 found 1 day ago
Spirit Airlines
Sat, Jan 31 - Mon, Feb 2
PHL
Philadelphia
EYW
Key West
$250 Roundtrip, just found
$250
Roundtrip
just found
Select Spirit Airlines flight, departing Sat, Jan 31 from Philadelphia to Key West, returning Mon, Feb 2, priced at $250 just found
JetBlue Airways
Sun, Mar 1 - Thu, Mar 5
PHL
Philadelphia
EYW
Key West
$403 Roundtrip, found 11 hours ago
$403
Roundtrip
found 11 hours ago
Select JetBlue Airways flight, departing Sun, Mar 1 from Philadelphia to Key West, returning Thu, Mar 5, priced at $403 found 11 hours ago
American Airlines
Sat, Nov 8 - Wed, Nov 12
PHL
Philadelphia
EYW
Key West
$423 Roundtrip, just found
$423
Roundtrip
just found
Select American Airlines flight, departing Sat, Nov 8 from Philadelphia to Key West, returning Wed, Nov 12, priced at $423 just found
Delta
Sat, Nov 8 - Wed, Nov 12
PHL
Philadelphia
EYW
Key West
$443 Roundtrip, just found
$443
Roundtrip
just found
Select Delta flight, departing Sat, Nov 8 from Philadelphia to Key West, returning Wed, Nov 12, priced at $443 just found
United
Tue, Nov 11 - Wed, Nov 19
PHL
Philadelphia
EYW
Key West
$443 Roundtrip, found 1 hour ago
$443
Roundtrip
found 1 hour ago
Select United flight, departing Tue, Nov 11 from Philadelphia to Key West, returning Wed, Nov 19, priced at $443 found 1 hour ago

Find the cheapest month to fly from Philadelphia (PHL) to Key West (EYW)

October is typically the cheapest month to fly

From $241 - $538 per traveler.

Frequently asked questions

How much does a flight from Philadelphia Intl. Airport (PHL) to Key West Intl. Airport (EYW) cost?
Secure a cheap one-way flight from $108 or cheap return flight from $215 from Philadelphia Intl. Airport (PHL) to Key West Intl. Airport (EYW) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Philadelphia Intl. Airport (PHL) to Key West Intl. Airport (EYW)?
Planning your trip for January is a great way to save, as it's the cheapest month for flights between PHL and EYW. You'll often find the lowest prices during off-peak months.
Which airlines fly direct from Philadelphia Intl. Airport (PHL) to Key West Intl. Airport (EYW)?
Hop on a nonstop flight with American Airlines and journey straight from Philadelphia Intl. Airport (PHL) to Key West Intl. Airport (EYW).
What is the cheapest airline that flies from Philadelphia Intl. Airport (PHL) to Key West Intl. Airport (EYW)?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from PHL to EYW. Then, sort your results by "Price (lowest to highest)" to score a good deal.
How many flights per day from Philadelphia Intl. Airport (PHL) to Key West Intl. Airport (EYW)?
When flying out of Philadelphia Intl. Airport (PHL), you can choose from an average of 2 daily direct flights to Key West Intl. Airport (EYW).
What are the most popular departure times for flights from Philadelphia Intl. Airport (PHL) to Key West Intl. Airport (EYW)?
The 8 AM departures from PHL to EYW are the most sought after. Greater demand means you'll likely pay more for these departures. If you want to save money, book during off-peak hours.
What day of the week has the most flights from PHL to EYW?
If you travel on a Friday, you'll get the greatest range of options for flights from Philadelphia Intl. Airport (PHL) to Key West Intl. Airport (EYW).
What is the earliest flight from Philadelphia Intl. Airport (PHL) to Key West Intl. Airport (EYW)?
The first flight of the day departing from Philadelphia Intl. Airport (PHL) is at around 8:20AM UTC-5. Hop on this flight and you'll land at Key West Intl. Airport (EYW) at approximately 11:50AM UTC-5. The entire trip takes 3h 30m.
How long does it take to fly from Philadelphia Intl. Airport (PHL) to Key West Intl. Airport (EYW)?
Typically, it takes 3 hours and 27 minutes to travel the 1,150 mi from PHL to EYW.
What is the best time to fly from Philadelphia Intl. Airport (PHL) to Key West Intl. Airport (EYW)?
To avoid possible delays on the Philadelphia Intl. Airport (PHL) to Key West Intl. Airport (EYW) route, travel before 3 PM. Flights after this time have a 22% higher chance of being canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Key West from Philadelphia Intl. Airport (PHL)?
Key West Intl. Airport (EYW) is the only airport in Key West with direct flights from Philadelphia Intl. Airport (PHL). Browse the options and find cheap fares on Expedia.
Is it cheaper to buy a plane ticket from Philadelphia Intl. Airport (PHL) to Key West Intl. Airport (EYW) last-minute?
Last-minute bookings from PHL to EYW are generally more expensive. To lock in the lowest prices, start looking for flights early. That said, if you can play around with your travel dates, you may land a cheap ticket right before your journey.
Is it cheaper to book a PHL to EYW flight and hotel package?
You'll generally save money by booking a PHL to EYW flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's simple to manage it all in one place. After choosing your ideal flights and accommodations, consider adding extras such as car rentals, tours and activities.
Can I cancel or change the date of my flight from Philadelphia Intl. Airport (PHL) to Key West Intl. Airport (EYW)?
It's usually possible to reschedule or cancel your PHL to EYW flight. However, for bookings made more than 24 hours ago, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are possible and if any costs are involved. You'll also find further details on our Customer Service portal.

Travel information

Travel information

Origin airport
Philadelphia Intl.
Destination airport
Key West Intl.
Airlines serving
American Airlines, Delta, Spirit Airlines, United
Roundtrip price
$215
Distance
1124 mi

Book with confidence

Book with confidence

Philadelphia to Key West Flights

The cheapest times to fly from Philadelphia to Key West

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Philadelphia to Key West are during the month of January. You can find some of the cheapest flights from Philadelphia to Key West with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Philadelphia to Key West

Sunday is one of the best days to book for cheap flights from Philadelphia to Key West: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Philadelphia to Key West

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Philadelphia to Key West in 2025. You can also book with separate airlines for your outbound and return journeys, from $108 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Philadelphia to Key West flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Philadelphia to Key West airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Philadelphia to Key West Flights

Explore a world of travel with Expedia

Explore a world of travel with Expedia

*Available to One Key members.