$122 Cheap Flights from Philadelphia (PHL) to Key West (EYW)

View $122 flight on Mon, Nov 24, 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 $122 for one-way flights and $251 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Spirit Airlines
Sat, Feb 7 - Tue, Feb 10
PHL
Philadelphia
EYW
Key West
$251 Roundtrip, found 17 hours ago
$251
Roundtrip
found 17 hours ago
Select Spirit Airlines flight, departing Sat, Feb 7 from Philadelphia to Key West, returning Tue, Feb 10, priced at $251 found 17 hours ago
Spirit Airlines
Sat, Jan 31 - Wed, Feb 4
PHL
Philadelphia
EYW
Key West
$257 Roundtrip, just found
$257
Roundtrip
just found
Select Spirit Airlines flight, departing Sat, Jan 31 from Philadelphia to Key West, returning Wed, Feb 4, priced at $257 just found
Spirit Airlines
Sat, Feb 7 - Tue, Feb 10
PHL
Philadelphia
EYW
Key West
$270 Roundtrip, found 17 hours ago
$270
Roundtrip
found 17 hours ago
Select Spirit Airlines flight, departing Sat, Feb 7 from Philadelphia to Key West, returning Tue, Feb 10, priced at $270 found 17 hours ago
Spirit Airlines
Thu, Nov 13 - Thu, Nov 20
PHL
Philadelphia
EYW
Key West
$277 Roundtrip, found 1 hour ago
$277
Roundtrip
found 1 hour ago
Select Spirit Airlines flight, departing Thu, Nov 13 from Philadelphia to Key West, returning Thu, Nov 20, priced at $277 found 1 hour ago
Spirit Airlines
Mon, Jan 12 - Thu, Jan 15
PHL
Philadelphia
EYW
Key West
$291 Roundtrip, just found
$291
Roundtrip
just found
Select Spirit Airlines flight, departing Mon, Jan 12 from Philadelphia to Key West, returning Thu, Jan 15, priced at $291 just found
Spirit Airlines
Sat, Feb 7 - Tue, Feb 10
PHL
Philadelphia
EYW
Key West
$292 Roundtrip, found 17 hours ago
$292
Roundtrip
found 17 hours ago
Select Spirit Airlines flight, departing Sat, Feb 7 from Philadelphia to Key West, returning Tue, Feb 10, priced at $292 found 17 hours ago
JetBlue Airways
Thu, Nov 27 - Thu, Dec 4
PHL
Philadelphia
EYW
Key West
$321 Roundtrip, found 1 day ago
$321
Roundtrip
found 1 day ago
Select JetBlue Airways flight, departing Thu, Nov 27 from Philadelphia to Key West, returning Thu, Dec 4, priced at $321 found 1 day ago
American Airlines
Tue, Jan 27 - Fri, Jan 30
PHL
Philadelphia
EYW
Key West
$380 Roundtrip, found 2 days ago
$380
Roundtrip
found 2 days ago
Select American Airlines flight, departing Tue, Jan 27 from Philadelphia to Key West, returning Fri, Jan 30, priced at $380 found 2 days ago
Delta
Sat, Jan 31 - Wed, Feb 4
PHL
Philadelphia
EYW
Key West
$443 Roundtrip, just found
$443
Roundtrip
just found
Select Delta flight, departing Sat, Jan 31 from Philadelphia to Key West, returning Wed, Feb 4, priced at $443 just found
United
Wed, May 13 - Sat, May 16
PHL
Philadelphia
EYW
Key West
$443 Roundtrip, found 16 hours ago
$443
Roundtrip
found 16 hours ago
Select United flight, departing Wed, May 13 from Philadelphia to Key West, returning Sat, May 16, priced at $443 found 16 hours ago

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

October is typically the cheapest month to fly

From $210 - $463 per traveler.

Graph displaying average flight prices per month

Alternative airports near Key West

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Key West Intl. EYW. Cheapest and Closest option available. Average driving time to city center is 8 minutes. Flights from $569
EYW
Key West Intl.
CheapestClosest
Average driving time to city center8 min
Flights from $569
Flights from Philadelphia (PHL) to Key West (EYW)
Origin airport
Philadelphia Intl.
Destination airport
Key West Intl.
Airlines serving
American Airlines, Delta, JetBlue Airways, Spirit Airlines, United
Roundtrip price
$251
Distance
1124 mi
Average flight time
3 hours 11 mins

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 February. 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 $122 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.

 

Frequently asked questions

How much does a flight from Philadelphia Intl. Airport (PHL) to Key West Intl. Airport (EYW) cost?
Score cheap return fares from Philadelphia Intl. Airport (PHL) to Key West Intl. Airport (EYW) starting at $423. Book your seat and get ready for takeoff. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a American Airlines flight leaving PHL on August 16 2025 and touching down at EYW. The price was last updated on July 23 2025 and has not changed since.
What is the cheapest month to fly from PHL to EYW?
The cheapest flights from PHL to EYW are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
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 PHL to EYW?
Jet off from PHL to EYW with American Airlines. This carrier currently has the lowest one-way fare on this route, starting from $313. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from PHL on August 16 2025. Prices were last updated on July 23 2025 and have not changed since.
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.

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