$127 Cheap Flights from Key West (EYW) to Philadelphia (PHL)

View $127 flight on Wed, Oct 22, 2025Opens in a new window

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Find available prices by choosing your travel dates.

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

Prices were available within the past 7 days and start at $127 for one-way flights and $321 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

JetBlue Airways
Sat, Oct 11 - Wed, Oct 15
EYW
Key West
PHL
Philadelphia
$321 Roundtrip, found 1 day ago
$321
Roundtrip
found 1 day ago
Select JetBlue Airways flight, departing Sat, Oct 11 from Key West to Philadelphia, returning Wed, Oct 15, priced at $321 found 1 day ago
American Airlines
Fri, Oct 10 - Tue, Oct 14
EYW
Key West
PHL
Philadelphia
$348 Roundtrip, found 4 days ago
$348
Roundtrip
found 4 days ago
Select American Airlines flight, departing Fri, Oct 10 from Key West to Philadelphia, returning Tue, Oct 14, priced at $348 found 4 days ago
American Airlines
Fri, Oct 10 - Tue, Oct 14
EYW
Key West
PHL
Philadelphia
$358 Roundtrip, found 4 days ago
$358
Roundtrip
found 4 days ago
Select American Airlines flight, departing Fri, Oct 10 from Key West to Philadelphia, returning Tue, Oct 14, priced at $358 found 4 days ago
JetBlue Airways
Sun, Oct 12 - Mon, Oct 20
EYW
Key West
PHL
Philadelphia
$370 Roundtrip, found 6 days ago
$370
Roundtrip
found 6 days ago
Select JetBlue Airways flight, departing Sun, Oct 12 from Key West to Philadelphia, returning Mon, Oct 20, priced at $370 found 6 days ago
United
Fri, Oct 10 - Tue, Oct 14
EYW
Key West
PHL
Philadelphia
$373 Roundtrip, found 4 days ago
$373
Roundtrip
found 4 days ago
Select United flight, departing Fri, Oct 10 from Key West to Philadelphia, returning Tue, Oct 14, priced at $373 found 4 days ago
Silver Airways
Fri, Jul 18 - Sun, Jul 20
EYW
Key West
PHL
Philadelphia
$381 Roundtrip, found 4 hours ago
$381
Roundtrip
found 4 hours ago
Select Silver Airways flight, departing Fri, Jul 18 from Key West to Philadelphia, returning Sun, Jul 20, priced at $381 found 4 hours ago
JetBlue Airways
Fri, Oct 10 - Tue, Oct 14
EYW
Key West
PHL
Philadelphia
$386 Roundtrip, found 4 days ago
$386
Roundtrip
found 4 days ago
Select JetBlue Airways flight, departing Fri, Oct 10 from Key West to Philadelphia, returning Tue, Oct 14, priced at $386 found 4 days ago
American Airlines
Fri, Oct 10 - Tue, Oct 14
EYW
Key West
PHL
Philadelphia
$388 Roundtrip, found 4 days ago
$388
Roundtrip
found 4 days ago
Select American Airlines flight, departing Fri, Oct 10 from Key West to Philadelphia, returning Tue, Oct 14, priced at $388 found 4 days ago
Delta
Fri, Oct 10 - Tue, Oct 14
EYW
Key West
PHL
Philadelphia
$391 Roundtrip, found 4 days ago
$391
Roundtrip
found 4 days ago
Select Delta flight, departing Fri, Oct 10 from Key West to Philadelphia, returning Tue, Oct 14, priced at $391 found 4 days ago
American Airlines
Sun, Oct 12 - Mon, Oct 20
EYW
Key West
PHL
Philadelphia
$397 Roundtrip, found 6 days ago
$397
Roundtrip
found 6 days ago
Select American Airlines flight, departing Sun, Oct 12 from Key West to Philadelphia, returning Mon, Oct 20, priced at $397 found 6 days ago
Flights from Key West (EYW) to Philadelphia (PHL)
Origin airport
Key West Intl.
Destination airport
Philadelphia Intl.
Airlines serving
American Airlines, Delta, JetBlue Airways, United
Roundtrip price
$320
Distance
1124 mi

Key West to Philadelphia Flights

The cheapest times to fly from Key West to Philadelphia

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 Key West to Philadelphia are during the month of October. You can find some of the cheapest flights from Key West to Philadelphia with Expedia's search tool and vast selection of airlines.

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

Sunday is one of the best days to book for cheap flights from Key West to Philadelphia: 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 Key West to Philadelphia

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 Key West to Philadelphia in 2025. You can also book with separate airlines for your outbound and return journeys, from $127 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 Key West to Philadelphia 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 Key West to Philadelphia 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 Key West Intl. Airport (EYW) to Philadelphia Intl. Airport (PHL) cost?
Book cheap return fares starting from $423 from Key West Intl. Airport (EYW) to Philadelphia Intl. Airport (PHL). 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 EYW on May 14 2025 and touching down at PHL. The price was last updated on April 23 2025 and has not changed since.
What is the cheapest month to fly from EYW to PHL?
The cheapest flights from EYW to PHL 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 Key West Intl. Airport (EYW) to Philadelphia Intl. Airport (PHL)?
When heading out of Key West Intl. Airport (EYW), you can catch a direct flight to Philadelphia Intl. Airport (PHL) with American Airlines.
What is the cheapest airline that flies from EYW to PHL?
Book a flight from EYW to PHL with American Airlines. This airline currently offers the lowest one-way fare on this route, starting at $212. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from EYW on June 25 2025. Prices were last updated on April 23 2025 and have not changed since.
How many flights per day from Key West Intl. Airport (EYW) to Philadelphia Intl. Airport (PHL)?
When flying out of Key West Intl. Airport (EYW), you’ll have your pick from an average of 2 daily direct flights to Philadelphia Intl. Airport (PHL).
What are the most popular departure times for flights from Key West Intl. Airport (EYW) to Philadelphia Intl. Airport (PHL)?
Flights between EYW and PHL are their busiest at 5 PM. If you’d like a quieter trip and potentially cheaper tickets, look for a time when demand is lower.
What day of the week has the most flights from EYW to PHL?
Depart on a Friday if you’re after the biggest selection of flights from Key West Intl. Airport (EYW) to Philadelphia Intl. Airport (PHL).
What is the earliest flight from Key West Intl. Airport (EYW) to Philadelphia Intl. Airport (PHL)?
The first flight of the day jetting off from Key West Intl. Airport (EYW) is at around 12:20PM UTC-5. Board this plane and you’ll touch down at Philadelphia Intl. Airport (PHL) at approximately 3:16PM UTC-5. The entire trip takes 2h 56m.
How long does it take to fly from Key West Intl. Airport (EYW) to Philadelphia Intl. Airport (PHL)?
It takes about 2 hours and 58 minutes to cover the 1,150 mi from EYW to PHL.
What is the best time to fly from Key West Intl. Airport (EYW) to Philadelphia Intl. Airport (PHL)?
To avoid possible delays on the Key West Intl. Airport (EYW) to Philadelphia Intl. Airport (PHL) route, fly before 3 PM. Later flights 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 Philadelphia from Key West Intl. Airport (EYW)?
If you’re boarding a direct flight from Key West Intl. Airport (EYW) to Philadelphia, Philadelphia Intl. Airport (PHL) is the only airport you can touch down at.
Is it cheaper to buy a plane ticket from Key West Intl. Airport (EYW) to Philadelphia Intl. Airport (PHL) last-minute?
Holding off until just before your trip to book your flight from EYW to PHL generally means paying more. Although you may find some last-minute offers, they’re not always guaranteed. Keep your travel plans flexible for a better chance of landing a bargain.
Is it cheaper to book an EYW to PHL flight and hotel package?
Compared with arranging flights and hotels separately, booking an EYW to PHL flight and hotel package with Expedia could lead to significant savings. Better still, having it all in one place will take the hassle out of planning your trip. Simply secure your flights and choose from our extensive range of hotels, then personalize your trip with extras like activities, tours and car rentals.
Can I cancel or change the date of my flight from Key West Intl. Airport (EYW) to Philadelphia Intl. Airport (PHL)?
If you reserved your EYW to PHL flight within the last 24 hours, you may be able to modify or cancel it at no cost. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal for more information.

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*Available to One Key members.