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Key West

$173+ Cheap flights from Philadelphia to Key West (PHL - EYW)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/19. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — EYW
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
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Cheapflights Tip: The best prices from Philadelphia to Key West are usually found in August or October, booked 80 days in advance, depart on a Tuesday or Wednesday and return on a Friday

Cheap flight deals from Philadelphia to Key West

Discover tips and strategies to find the most affordable flight options for your journey from Philadelphia (PHL) to Key West (EYW). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 31, 2025.

Round-trip from

$318
(Mytrip)

One-way from

$173
(Mytrip)

Popular in

April

Cheapest in

August

Average price

$518

Good round-trip deal

$486 or less

Good one-way deal

$342 or less
From Philadelphia to Key West
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One-way flight from Philadelphia to Key West
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Highest demand for flights based on searches. 6% potential increase in price ($36 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from Philadelphia to Key West.
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Price to beat on a one-way flight from Philadelphia to Key West.
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Find flight deals from Philadelphia to Key West

Cheapest flights from Philadelphia to Key West
Explore the most affordable flight options available from Philadelphia to Key West. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2025.

This FlightHub deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/135:15 amPHL - EYW
1 stop8h 15mSpirit Airlines
Mon 11/172:25 pmEYW - PHL
1 stop10h 07mSpirit Airlines
Deal found 7/30$255
This Mytrip deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/135:15 amPHL - EYW
2 stops14h 31mMultiple Airlines
Mon 11/172:25 pmEYW - PHL
1 stop10h 07mMultiple Airlines
Deal found 7/30$298

Cheapflights Fare Finder

 
Customize your flight search to find flights from Philadelphia to Key West that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 31, 2025.
Use the filters below to find and compare flights from Philadelphia to Key West that are best for you.

Fly from

Philadelphia

Fly to

Key West

Route

Depart

Return

Price

PhiladelphiaKey West

PHL - EYW

PHLEYW

Philadelphia

Thu 11/13

5:15 am-1:30 pm

1 stop8h 15m

Key West

Mon 11/17

2:25 pm-12:32 am

1 stop10h 07m

$255

PhiladelphiaKey West

PHL - EYW

PHLEYW

Philadelphia

Sun 1/11

7:00 am-2:56 pm

1 stop7h 56m

Key West

Wed 1/14

2:25 pm-12:32 am

1 stop10h 07m

$294

PhiladelphiaKey West

PHL - EYW

PHLEYW

Philadelphia

Wed 11/19

7:25 pm-1:30 pm

2 stops18h 05m

$173

PhiladelphiaKey West

PHL - EYW

PHLEYW

Philadelphia

Fri 8/15

5:20 am-3:22 pm

2 stops10h 02m

$199

PhiladelphiaKey West

PHL - EYW

PHLEYW

Philadelphia

Tue 9/30

6:30 am-6:59 pm

2 stops12h 29m

$256

PhiladelphiaKey West

PHL - EYW

PHLEYW

Philadelphia

Fri 8/29

7:58 pm-2:14 pm

2 stops18h 16m

$364

PhiladelphiaKey West

PHL - EYW

PHLEYW

Philadelphia

Sat 9/27

9:25 am-5:15 pm

1 stop7h 50m

$445

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Best time to book a flight from Philadelphia to Key West

Have a flexible travel schedule? Discover the best time to fly to Key West from Philadelphia with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Philadelphia to Key West

How far ahead should I book a flight from Philadelphia to Key West?

Use this chart to determine the optimal time to book a round-trip flight from Philadelphia to Key West. Price data was last updated on July 25, 2025.

The price you pay for your flight from Philadelphia to Key West may vary depending on when you book. For the best chance of a lower fare, look to book 80 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Philadelphia to Key West?

Currently, August is the cheapest month in which you can book a flight from Philadelphia to Key West (average of $328). Flying from Philadelphia to Key West in March is currently the most expensive (average of $492). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from PHL to EYW?

Find hourly flight availability from Philadelphia to Key West. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 31, 2025.

It’s optimal to fly from Philadelphia to Key West at noon. By choosing this option you can save up to 8% on the cost of your flight, compared to a flight in the morning.

Reviews of airlines servicing Key West

Get insights into the airlines that provide service to Key West. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Key West. Reviews last updated July 31, 2025.
Peruse reviews from past customers who have flown with Delta, United Airlines, and American Airlines from Philadelphia to Key West to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,980 reviews

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Joseph,Aug 2023

MSP - MCO

Even if you have delta comfort plus, they will move your overhead bag. One of the perks for upgrading is that you have dedicated space for your carry on with comfort plus with delta. They moved my carry on luggage (3) compartments back and put in bags for other passengers that should have gone under their respective seats. When deboarding the plane, there was no help from anyone to retrieve my luggage back several rows. Delta is turning into pure garbage.
Delta
8.0
Very good
7,980 reviews
Delta
8.0
Very good
7,980 reviews

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Joseph,Aug 2023

MSP - MCO

Even if you have delta comfort plus, they will move your overhead bag. One of the perks for upgrading is that you have dedicated space for your carry on with comfort plus with delta. They moved my carry on luggage (3) compartments back and put in bags for other passengers that should have gone under their respective seats. When deboarding the plane, there was no help from anyone to retrieve my luggage back several rows. Delta is turning into pure garbage.
United Airlines
7.4
Good
8,902 reviews
Delta
8.0
Very good
7,980 reviews

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Joseph,Aug 2023

MSP - MCO

Even if you have delta comfort plus, they will move your overhead bag. One of the perks for upgrading is that you have dedicated space for your carry on with comfort plus with delta. They moved my carry on luggage (3) compartments back and put in bags for other passengers that should have gone under their respective seats. When deboarding the plane, there was no help from anyone to retrieve my luggage back several rows. Delta is turning into pure garbage.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,980 reviews

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Joseph,Aug 2023

MSP - MCO

Even if you have delta comfort plus, they will move your overhead bag. One of the perks for upgrading is that you have dedicated space for your carry on with comfort plus with delta. They moved my carry on luggage (3) compartments back and put in bags for other passengers that should have gone under their respective seats. When deboarding the plane, there was no help from anyone to retrieve my luggage back several rows. Delta is turning into pure garbage.
Spirit Airlines
6.3
Okay
8,047 reviews
Delta
8.0
Very good
7,980 reviews

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Joseph,Aug 2023

MSP - MCO

Even if you have delta comfort plus, they will move your overhead bag. One of the perks for upgrading is that you have dedicated space for your carry on with comfort plus with delta. They moved my carry on luggage (3) compartments back and put in bags for other passengers that should have gone under their respective seats. When deboarding the plane, there was no help from anyone to retrieve my luggage back several rows. Delta is turning into pure garbage.

Related info for your journey

Find useful and relevant information for your journey from Philadelphia to Key West. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from Philadelphia to Key West?

    If you book a flight from Philadelphia to Key West, you will be flying from Philadelphia to Key West. Flights to Key West (EYW) from Philadelphia (PHL) take 3h 09m for a nonstop flight. There is 1 flight from Philadelphia to Key West per day from 3 airlines.

  • What is the cheapest airline to fly from Philadelphia to Key West round-trip?

    Cheapflights users have booked flights from Philadelphia to Key West round-trip from $420. American Airlines is 21% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Philadelphia to Key West one-way?

    The cheapest airlines for a one-way flight from Philadelphia to Key West are Spirit Airlines ($173), American Airlines ($256), and United Airlines ($364).

  • What are the most reliable airlines from Philadelphia to Key West?

    The top 3 most reliable airlines when flying from Philadelphia to Key West are Qatar Airways (85%), Alaska Airlines (84%) and American Airlines (82%).

  • What are the cheapest flights from Philadelphia to Key West?

    On average you can expect to pay $504 for a flight from Philadelphia to Key West. The cheapest flight overall is $266 while the most popular route, (Philadelphia - Key West) is currently priced at $255.

  • Can I find deals for flights from Philadelphia to Key West that include hotel bookings?

    Yes. In addition to deals on Philadelphia to Key West flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Philadelphia to Key West?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Philadelphia to Key West.

  • Can I find deals for business class flights from Philadelphia to Key West?

    Yes. Cheapflights offers flight deals from Philadelphia to Key West by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Philadelphia to Key West?

    Currently, August is the cheapest month in which you can book a flight from Philadelphia to Key West (average of $328). Flying from Philadelphia to Key West in March is currently the most expensive (average of $492). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top 3 airlines flying from Philadelphia to Key West

Discover the top 3 airlines that operate flights from Philadelphia to Key West. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$288Average$522FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$390Average$449FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$395Average$542FlexibilityNo cancel feeOn-time71%

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