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$90+ Cheap flights from Philadelphia (PHL) to San Juan

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 11/18. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — SJU
Nov 27 — Dec 41
Thu 11/27
Thu 12/4
1 adult, Economy
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Cheapflights Tip: The best prices from Philadelphia to San Juan are usually found in October or May, booked 28 days in advance, depart on a Wednesday or Monday and return on a Wednesday

Find flight deals from Philadelphia to San Juan

Cheapest flights from Philadelphia to San Juan
Explore the most affordable flight options available from Philadelphia to San Juan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 28, 2025.

This Priceline deal was found by Cheapflights users on 10/27. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/166:00 amPHL - SJU
1 stop10h 19mMultiple Airlines
Mon 11/2412:37 pmSJU - PHL
Nonstop4h 07mMultiple Airlines
Deal found 10/27$171
This Cheapflightsfares deal was found by Cheapflights users on 10/28. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/197:30 amPHL - SJU
Nonstop3h 46mFrontier
Tue 11/251:22 pmSJU - PHL
Nonstop4h 07mFrontier
Deal found 10/28$176
This Kiwi.com deal was found by Cheapflights users on 10/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/108:02 pmPHL - SJU
Nonstop3h 47mFrontier
Fri 12/191:59 amSJU - PHL
Nonstop4h 05mFrontier
Deal found 10/26$177
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/166:24 pmPHL - SJU
1 stop20h 46mMultiple Airlines
Sun 11/239:30 pmSJU - PHL
1 stop12h 23mMultiple Airlines
Deal found 10/28$178
This Frontier deal was found by Cheapflights users on 10/28. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/38:02 pmPHL - SJU
Nonstop3h 47mFrontier
Mon 12/810:42 amSJU - PHL
1 stop6h 56mFrontier
Deal found 10/28$180
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/57:43 pmPHL - SJU
Nonstop3h 46mMultiple Airlines
Thu 11/133:37 pmSJU - PHL
1 stop8h 49mMultiple Airlines
Deal found 10/27$181
This Cheapflightsfares deal was found by Cheapflights users on 10/28. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/214:02 pmPHL - SJU
Nonstop3h 47mFrontier
Wed 11/269:54 pmSJU - PHL
Nonstop4h 07mFrontier
Deal found 10/28$182
This Frontier deal was found by Cheapflights users on 10/26. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/187:30 amPHL - SJU
Nonstop3h 46mFrontier
Sat 11/223:23 pmSJU - PHL
1 stop10h 31mFrontier
Deal found 10/26$183
This Cheapflightsfares deal was found by Cheapflights users on 10/28. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/116:00 amPHL - SJU
1 stop13h 08mFrontier
Mon 12/221:59 amSJU - PHL
Nonstop4h 05mFrontier
Deal found 10/28$184
This Mytrip deal was found by Cheapflights users on 10/27. 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.
Sat 12/136:00 amPHL - SJU
Nonstop3h 47mFrontier
Sat 12/2011:57 amSJU - PHL
Nonstop4h 05mFrontier
Deal found 10/27$185
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/107:25 amPHL - SJU
1 stop7h 45mMultiple Airlines
Thu 11/133:37 pmSJU - PHL
1 stop8h 49mMultiple Airlines
Deal found 10/27$186
This Frontier deal was found by Cheapflights users on 10/28. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/68:02 pmPHL - SJU
Nonstop3h 47mFrontier
Mon 12/810:42 amSJU - PHL
1 stop6h 56mFrontier
Deal found 10/28$187

Cheap flight deals from Philadelphia to San Juan

Discover tips and strategies to find the most affordable flight options for your journey from Philadelphia (PHL) to San Juan (PR1). 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 October 28, 2025.

Round-trip from

$171
(Priceline)

One-way from

$90
(Cheapflightsfares)

Popular in

December

Cheapest in

October

Average price

$231
From Philadelphia to San Juan
Search Deals
One-way flight from Philadelphia to San Juan
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($30 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Philadelphia to San Juan 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 October 28, 2025.
Use the filters below to find and compare flights from Philadelphia to San Juan that are best for you.

Fly from

Philadelphia

Fly to

San Juan

Route

Depart

Return

Price

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Tue 1/20

6:00 am-2:10 pm

1 stop7h 10m

San Juan Luis Munoz Marin Intl

Tue 1/27

6:27 pm-12:23 am

1 stop6h 56m

$283

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Mon 1/26

12:15 pm-12:35 am

2 stops11h 20m

San Juan Luis Munoz Marin Intl

Fri 1/30

5:40 am-5:05 pm

2 stops12h 25m

$283

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Tue 1/13

8:05 am-9:26 pm

1 stop12h 21m

San Juan Luis Munoz Marin Intl

Mon 1/26

2:05 am-2:31 pm

2 stops13h 26m

$283

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Fri 1/16

8:40 am-6:02 pm

1 stop8h 22m

San Juan Luis Munoz Marin Intl

Fri 1/23

6:10 am-12:35 pm

1 stop7h 25m

$300

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Mon 12/29

8:40 am-7:23 pm

1 stop9h 43m

San Juan Luis Munoz Marin Intl

Sun 1/4

6:00 am-3:37 pm

1 stop10h 37m

$312

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Wed 1/14

6:00 am-2:10 pm

1 stop7h 10m

San Juan Luis Munoz Marin Intl

Tue 1/20

6:27 pm-12:23 am

1 stop6h 56m

$329

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Tue 12/2

12:05 pm-12:35 am

2 stops11h 30m

San Juan Luis Munoz Marin Intl

Sat 12/6

6:15 am-4:30 pm

2 stops11h 15m

$336

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Tue 1/6

10:10 am-9:00 pm

1 stop9h 50m

San Juan Luis Munoz Marin Intl

Thu 1/15

2:05 am-2:10 pm

2 stops13h 05m

$385

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Thu 11/13

7:40 am-7:50 pm

2 stops11h 10m

San Juan Luis Munoz Marin Intl

Wed 11/19

6:40 am-5:15 pm

2 stops11h 35m

$455

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Mon 11/17

6:00 am-3:40 pm

1 stop8h 40m

San Juan Luis Munoz Marin Intl

Mon 11/24

2:05 am-2:06 pm

2 stops13h 01m

$463

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/26

Showing 1-10 of 23 results
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Best time to book a flight from Philadelphia to San Juan

Have a flexible travel schedule? Discover the best time to fly to San Juan 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 San Juan

How far ahead should I book a flight from Philadelphia to San Juan?

Use this chart to determine the optimal time to book a round-trip flight from Philadelphia to San Juan. Price data was last updated on October 24, 2025.

Booking 28 days in advance of your planned departure date is, on average, the best time to get cheap flights from Philadelphia to San Juan. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Philadelphia to San Juan?

Currently, March is the cheapest month in which you can book a flight from Philadelphia to San Juan (average of $62). Flying from Philadelphia to San Juan in August is currently the most expensive (average of $138). 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 SJU?

Find hourly flight availability from Philadelphia to San Juan. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 28, 2025.

It’s typically best to fly out from Philadelphia to San Juan at noon. Doing so could potentially save you 24% on the flight price compared to flying in the morning, which is usually more expensive.

What is the cheapest day to fly from Philadelphia to San Juan?

Use this chart to determine the cheapest time to fly round-trip from Philadelphia to San Juan. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Philadelphia to San Juan flight should consider departing on Wednesday at noon when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost to fly round-trip from Philadelphia to San Juan?

Reviews of airlines servicing San Juan

Get insights into the airlines that provide service to San Juan. 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 San Juan. Reviews last updated October 28, 2025.
Read through reviews of airlines operating flights from Philadelphia to San Juan, such as Delta, American Airlines, and JetBlue. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
7,994 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Overall

7.9

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Delta
7.9
Good
7,994 reviews
Delta
7.9
Good
7,994 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Overall

7.9

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
American Airlines
7.2
Good
11,032 reviews
Delta
7.9
Good
7,994 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Overall

7.9

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
JetBlue
7.2
Good
2,908 reviews
Delta
7.9
Good
7,994 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Overall

7.9

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Spirit Airlines
6.3
Okay
8,116 reviews
Delta
7.9
Good
7,994 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Overall

7.9

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Frontier
5.8
Fair
3,124 reviews
Delta
7.9
Good
7,994 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Overall

7.9

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.

Related info for your journey

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

  • What airport do you fly from for flights from Philadelphia to San Juan?

    If you book a flight to San Juan from Philadelphia, you will be flying from Philadelphia, which is the city’s only airport. Philadelphia (PHL) is located 7.0 mi from the center of Philadelphia. There are 3 flights from Philadelphia to San Juan per day from 8 different airlines.

  • How long is the flight from Philadelphia to San Juan?

    Delta, Southwest, and United Airlines can get you from Philadelphia to San Juan in just under 7h 10m. Your travel time can differ by up to 5h 11m. Airlines will cover a distance of 1579 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Philadelphia to San Juan round-trip?

    Cheapflights users have booked flights from Philadelphia to San Juan round-trip from $100. Other airlines that can offer you cheap pricing are Spirit Airlines, from $130, and Frontier, from $148. You may be able to fly from Philadelphia to San Juan for 64% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Philadelphia to San Juan one-way?

    One-way options have recently been found by users for as low as $107 on Frontier. Other airlines that offer cheap prices include Spirit Airlines from $127 and Southwest from $142 one-way.

  • What are the most reliable airlines from Philadelphia to San Juan?

    Consider Spirit Airlines (74%), Frontier (63%) or British Airways (46%) when booking your flight. These represent the most reliable airlines when flying from Philadelphia to San Juan.

  • What are the cheapest flights from Philadelphia to San Juan?

    On average you can expect to pay $259 for a flight from Philadelphia to San Juan. The cheapest flight overall is $89 while the most popular route, (Philadelphia - San Juan Luis Munoz Marin Intl) is currently priced at $168.

  • Where are the most common layover locations when flying from Philadelphia to San Juan?

    Philadelphia to San Juan flights have a layover in Orlando most of the time.

  • What are some popular things to do or see while on a layover in Orlando?

    Walt Disney World Resort, Universal Orlando Resort, and International Drive are currently the most popular points of interest in Orlando at the moment. Walt Disney World Resort, Universal Orlando Resort, and International Drive can be accessed by traveling approximately 16.2 mi, 10.2 mi, and 9.9 mi, respectively from Orlando. Travelers can rent a car at Orlando for an average daily rate of $25 to make sightseeing during their layover a little easier.

  • Where are the least popular layover locations for Philadelphia to San Juan flights?

    Of the flights from Philadelphia to San Juan that have layovers, the fewest flights stop in Miami.

  • Can I find deals for flights from Philadelphia to San Juan that include hotel bookings?

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

  • How can I find direct flights from Philadelphia to San Juan?

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

  • Can I find deals for business class flights from Philadelphia to San Juan?

    Yes. Cheapflights offers flight deals from Philadelphia to San Juan 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 San Juan?

    Currently, March is the cheapest month in which you can book a flight from Philadelphia to San Juan (average of $62). Flying from Philadelphia to San Juan in August is currently the most expensive (average of $138). 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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Alternative routes for Philadelphia to San Juan

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Luis Munoz Marin Intl flights
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Top 8 airlines flying from Philadelphia to San Juan

Discover the top 8 airlines that operate flights from Philadelphia to San Juan. 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 October 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
Avelo AirlinesCheapest$100Average$167FlexibilityNo cancel feeOn-timeN/A
Spirit AirlinesCheapest$130Average$269FlexibilityNo cancel feeOn-time65%
FrontierCheapest$148Average$330FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$213Average$448FlexibilityNo cancel feeOn-time63%
DeltaCheapest$215Average$334FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$244Average$472FlexibilityNo cancel feeOn-time71%
JetBlueCheapest$289Average$401FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$420Average$485FlexibilityNo cancel feeOn-time69%

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