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$141+ Cheap flights from Key West to Philadelphia (EYW - PHL)

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 8/29. Fares are subject to change and may not be available on all flights or dates of travel.
EYW — PHL
Aug 4 — Aug 111
Mon 8/4
Mon 8/11
1 adult, Economy
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Cheap flight deals from Key West to Philadelphia

Discover tips and strategies to find the most affordable flight options for your journey from Key West (EYW) to Philadelphia (PHL). 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 30, 2025.

Round-trip from

$337
(Mytrip)

One-way from

$141
(Trip.com)

Popular in

March

Cheapest in

November

Average price

$513

Good round-trip deal

$347 or less

Good one-way deal

$198 or less
From Key West to Philadelphia
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One-way flight from Key West to Philadelphia
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Highest demand for flights based on searches. 21% potential increase in price ($151 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($31 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 Key West to Philadelphia.
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Price to beat on a one-way flight from Key West to Philadelphia.
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Find flight deals from Key West to Philadelphia

Cheapest flights from Key West to Philadelphia
Explore the most affordable flight options available from Key West to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2025.

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.
Fri 8/224:12 pmEYW - PHL
2 stops17h 44mMultiple Airlines
Sun 8/249:59 pmPHL - EYW
2 stops18h 52mMultiple Airlines
Deal found 7/30$337
This Delta deal was found by Cheapflights users on 7/28. 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.
Wed 8/276:20 pmEYW - PHL
1 stop6h 36mDelta
Tue 9/22:35 pmPHL - EYW
1 stop5h 37mDelta
Deal found 7/28$443
This American Airlines deal was found by Cheapflights users on 7/28. 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.
Thu 8/283:00 pmEYW - PHL
1 stop4h 47mAmerican Airlines
Tue 9/210:42 amPHL - EYW
Nonstop3h 09mAmerican Airlines
Deal found 7/28$453
This United Airlines deal was found by Cheapflights users on 7/28. 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.
Tue 8/122:22 pmEYW - PHL
2 stops19h 33mUnited Airlines
Sat 8/237:58 pmPHL - EYW
2 stops18h 03mUnited Airlines
Deal found 7/28$568

Cheapflights Fare Finder

 
Customize your flight search to find flights from Key West to Philadelphia 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 30, 2025.
Use the filters below to find and compare flights from Key West to Philadelphia that are best for you.

Fly from

Key West

Fly to

Philadelphia

Route

Depart

Return

Price

Key WestPhiladelphia

EYW - PHL

EYWPHL

Key West

Fri 8/22

4:12 pm-9:56 am

2 stops17h 44m

Philadelphia

Sun 8/24

9:59 pm-4:51 pm

2 stops18h 52m

$337

Key WestPhiladelphia

EYW - PHL

EYWPHL

Key West

Wed 1/7

2:25 pm-12:32 am

1 stop10h 07m

Philadelphia

Tue 3/3

5:15 am-1:30 pm

1 stop8h 15m

$339

Key WestPhiladelphia

EYW - PHL

EYWPHL

Key West

Wed 1/7

2:59 pm-5:55 pm

Nonstop2h 56m

Philadelphia

Tue 3/10

10:30 am-1:50 pm

Nonstop3h 20m

$423

Key WestPhiladelphia

EYW - PHL

EYWPHL

Key West

Wed 8/27

6:20 pm-12:56 am

1 stop6h 36m

Philadelphia

Tue 9/2

2:35 pm-8:12 pm

1 stop5h 37m

$443

Key WestPhiladelphia

EYW - PHL

EYWPHL

Key West

Tue 8/12

2:22 pm-9:55 am

2 stops19h 33m

Philadelphia

Sat 8/23

7:58 pm-2:01 pm

2 stops18h 03m

$568

Key WestPhiladelphia

EYW - PHL

EYWPHL

Key West

Fri 8/29

10:33 am-6:36 pm

1 stop8h 03m

$141

Key WestPhiladelphia

EYW - PHL

EYWPHL

Key West

Mon 1/26

12:07 pm-6:32 pm

1 stop6h 25m

$171

Key WestPhiladelphia

EYW - PHL

EYWPHL

Key West

Sun 1/11

2:25 pm-12:32 am

1 stop10h 07m

$208

Key WestPhiladelphia

EYW - PHL

EYWPHL

Key West

Tue 9/30

6:17 pm-7:43 am

2 stops13h 26m

$261

Key WestPhiladelphia

EYW - PHL

EYWPHL

Key West

Sat 8/30

6:20 pm-3:50 pm

2 stops21h 30m

$320

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Showing 1-10 of 11 results
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Best time to book a flight from Key West to Philadelphia

Have a flexible travel schedule? Discover the best time to fly to Philadelphia from Key West 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 Key West to Philadelphia

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

Currently, August is the cheapest month in which you can book a flight from Key West to Philadelphia (average of $236). Flying from Key West to Philadelphia in March is currently the most expensive (average of $295). 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 EYW to PHL?

Find hourly flight availability from Key West to Philadelphia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 30, 2025.

It’s optimal to fly from Key West to Philadelphia in the afternoon. By choosing this option you can save up to 14% on the cost of your flight, compared to a flight at noon.

How much does it cost to fly round-trip from Key West to Philadelphia?

Reviews of airlines servicing Philadelphia

Get insights into the airlines that provide service to Philadelphia. 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 Philadelphia. Reviews last updated July 30, 2025.
Get a feel of what it's like to fly with Delta, United Airlines, and JetBlue from Key West to Philadelphia by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,980 reviews

Entertainment

7.9

Boarding

8.2

Overall

8.0

Food

7.3

Comfort

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.
Delta
8.0
Very good
7,980 reviews
Delta
8.0
Very good
7,980 reviews

Entertainment

7.9

Boarding

8.2

Overall

8.0

Food

7.3

Comfort

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.
United Airlines
7.4
Good
8,896 reviews
Delta
8.0
Very good
7,980 reviews

Entertainment

7.9

Boarding

8.2

Overall

8.0

Food

7.3

Comfort

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.
JetBlue
7.3
Good
2,913 reviews
Delta
8.0
Very good
7,980 reviews

Entertainment

7.9

Boarding

8.2

Overall

8.0

Food

7.3

Comfort

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,980 reviews

Entertainment

7.9

Boarding

8.2

Overall

8.0

Food

7.3

Comfort

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.
Spirit Airlines
6.3
Okay
8,048 reviews
Delta
8.0
Very good
7,980 reviews

Entertainment

7.9

Boarding

8.2

Overall

8.0

Food

7.3

Comfort

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.

Related info for your journey

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

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

    Flying on Spirit Airlines is currently your cheapest option to Philadelphia, with prices starting at $339. Additional round-trip tickets that might be worth considering are offered by American Airlines and Delta, with the lowest prices starting at $423 and $443, respectively. Spirit Airlines is currently priced 39% below the average price you’ll pay for this route.

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

    One-way options have recently been found by users for as low as $171 on JetBlue. Other airlines that offer cheap prices include Spirit Airlines from $208 and American Airlines from $261 one-way.

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Key West to Philadelphia on time: Alaska Airlines (67%), Qatar Airways (66%), American Airlines (59%).

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

    The cheapest flight price from Key West to Philadelphia is $198. On average you can expect to pay $353. The most popular route, (Key West - Philadelphia), can usually be booked for $318.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Key West to Philadelphia 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 Key West to Philadelphia?

    Currently, August is the cheapest month in which you can book a flight from Key West to Philadelphia (average of $236). Flying from Key West to Philadelphia in March is currently the most expensive (average of $295). 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

Traveling to a place near Philadelphia?

Book flights to Philadelphia if you plan to visit one of these locations
Vineland
Wildwood
King of Prussia
Pottstown
Cherry Hill
Ocean City
Chester
Millville
Reading
Ephrata
Camden
Dewey Beach
Dover
Elkton
Essington
Willow Grove
Newark
Exton
Glen Mills
Springfield

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Alternative routes for Key West to Philadelphia

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Top airline flying from Key West to Philadelphia

Discover the top airline that operate flights from Key West to Philadelphia. 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 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$333Average$518FlexibilityNo cancel feeOn-time71%

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