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$137+ 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 5/20. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — EYW
May 17 — May 241
Sat 5/17
Sat 5/24
1 adult, Economy
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Cheapflights Tip: The best prices from Philadelphia to Key West are usually found in August or July, booked 41 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 May 12, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$438
(American Airlines)

One-way from

$137
(Trip.com)

Popular in

April

Cheapest in

August

Average price

$559

Good round-trip deal

$486 or less

Good one-way deal

$434 or less
Provider with most accurate pricing for Philadelphia-Key West flight deals.
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Provider most trusted by Cheapflights users for Philadelphia-Key West flights.
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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. 7% potential increase in price ($39 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in May 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 May 12, 2025.

This American Airlines deal was found by Cheapflights users on 5/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/810:40 amPHL - EYW
Nonstop3h 11mAmerican Airlines
Fri 7/114:58 pmEYW - PHL
Nonstop3h 02mAmerican Airlines
Deal found 5/12$438
This Trip.com deal was found by Cheapflights users on 5/12. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/26:20 amPHL - EYW
1 stop11h 45mMultiple Airlines
Sat 7/58:45 amEYW - PHL
1 stop13h 54mMultiple Airlines
Deal found 5/12$440
This Delta deal was found by Cheapflights users on 5/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/105:30 amPHL - EYW
1 stop7h 39mDelta
Tue 6/176:29 pmEYW - PHL
1 stop6h 30mDelta
Deal found 5/11$443
This United Airlines deal was found by Cheapflights users on 5/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/1210:35 amPHL - EYW
2 stops27h 25mUnited Airlines
Mon 6/166:45 pmEYW - PHL
3 stops26h 48mUnited Airlines
Deal found 5/11$444

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 May 12, 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

Tue 7/8

10:40 am-1:51 pm

Nonstop3h 11m

Key West

Mon 7/14

4:58 pm-8:00 pm

Nonstop3h 02m

$438

PhiladelphiaKey West

PHL - EYW

PHLEYW

Philadelphia

Wed 7/2

6:20 am-6:05 pm

1 stop11h 45m

Key West

Sat 7/5

8:45 am-10:39 pm

1 stop13h 54m

$440

PhiladelphiaKey West

PHL - EYW

PHLEYW

Philadelphia

Tue 6/10

5:30 am-1:09 pm

1 stop7h 39m

Key West

Tue 6/17

6:29 pm-12:59 am

1 stop6h 30m

$443

PhiladelphiaKey West

PHL - EYW

PHLEYW

Philadelphia

Thu 6/12

10:35 am-2:00 pm

2 stops27h 25m

Key West

Mon 6/16

6:45 pm-9:33 pm

3 stops26h 48m

$444

PhiladelphiaKey West

PHL - EYW

PHLEYW

Philadelphia

Tue 5/20

10:49 am-6:05 pm

1 stop7h 16m

$137

PhiladelphiaKey West

PHL - EYW

PHLEYW

Philadelphia

Wed 7/23

11:45 am-6:05 pm

1 stop6h 20m

$190

PhiladelphiaKey West

PHL - EYW

PHLEYW

Philadelphia

Wed 6/25

6:15 am-6:05 pm

2 stops11h 50m

$212

PhiladelphiaKey West

PHL - EYW

PHLEYW

Philadelphia

Thu 11/6

2:40 pm-7:44 pm

1 stop5h 04m

$237

PhiladelphiaKey West

PHL - EYW

PHLEYW

Philadelphia

Tue 5/20

10:35 am-1:39 pm

Nonstop3h 04m

$270

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/12

Compare providers for flights from Philadelphia to Key West

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Philadelphia to Key West in May.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
PricelinePrice Accuracy2 starsTrust Score*3 stars
MytripPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Philadelphia-Key West flights, users find the pricing of Mytrip to be most consistent on Cheapflights vs. Mytrip Users can find the same prices on Philadelphia-Key West flight deals on Cheapflights vs. Mytrip >95% of the time. Price accuracy is based on data collected from Philadelphia-Key West flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Philadelphia-Key West flights, Cheapflights users trust Mytrip the most. Mytrip has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Philadelphia-Key West flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 May 9, 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 41 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 May 12, 2025.

It’s optimal to fly from Philadelphia to Key West at noon. By choosing this option you can save up to 7% on the cost of your flight, compared to a flight in the morning.

Weekly flight availability from Philadelphia to Key West

Explore weekly flight availability from Philadelphia to Key West. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated May 12, 2025.

The most flights from PHL to EYW are scheduled on a Monday (3 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (3 on average).

Rainfall in Key West by month

Plan your trip to Key West by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Key West ranges from 1.5 - 6.7 inches per month. September is typically the wettest month, when rainfall can reach 6.7 in. February is typically the driest time to visit Key West when rainfall is around 1.5 in.

Temperature in Key West by month

Plan your trip to Key West by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Key West, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 69.8 F).

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 May 12, 2025.
Read reviews from past customers who have flown Delta, United Airlines and JetBlue from Philadelphia to Key West. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,950 reviews

Crew

8.5

Overall

8.0

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

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
7,950 reviews
Delta
8.0
Very good
7,950 reviews

Crew

8.5

Overall

8.0

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

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
8,724 reviews
Delta
8.0
Very good
7,950 reviews

Crew

8.5

Overall

8.0

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

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.
JetBlue
7.3
Good
2,924 reviews
Delta
8.0
Very good
7,950 reviews

Crew

8.5

Overall

8.0

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

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
7,950 reviews

Crew

8.5

Overall

8.0

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

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 04m for a nonstop flight. There are 3 flights from Philadelphia to Key West per day from 3 airlines.

  • What are the cheapest airlines flying from Philadelphia to Key West round-trip?

    Cheapflights users have booked flights from Philadelphia to Key West round-trip from $438. Other airlines that can offer you cheap pricing are Delta, from $443, and United Airlines, from $444. American Airlines is 16% 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 JetBlue ($190), United Airlines ($212), and American Airlines ($270).

  • 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 Republic Airways (90%), American Airlines (87%) and Alaska Airlines (81%).

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

    On average you can expect to pay $712 for a flight from Philadelphia to Key West. The cheapest flight overall is $300 while the most popular route, (Philadelphia - Key West) is currently priced at $223.

  • 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.

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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 May 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$288Average$524FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$388Average$534FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$390Average$484FlexibilityNo cancel feeOn-time69%

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