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San Juan

$82+ 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 3/23. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — SJU
Apr 17 — Apr 241
Fri 4/17
Fri 4/24
1 adult, Economy
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Cheapflights Tip: The best prices from Philadelphia to San Juan are usually found in October or January, booked 61 days in advance, depart on a Monday or Wednesday and return on a Thursday

Cheap 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 March 18, 2026.

This eDestinos deal was found by Cheapflights users on 3/13. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/811:59 pm
PHL
-
SJU
Nonstop4h 02m
Frontier
Tue 5/126:30 am
SJU
-
PHL
Nonstop4h 11m
Frontier
Deal found 3/13$168
This CheapOair deal was found by Cheapflights users on 3/15. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/146:48 am
PHL
-
SJU
1 stop12h 07m
Spirit Airlines
Sat 4/182:09 am
SJU
-
PHL
Nonstop4h 03m
Spirit Airlines
Deal found 3/15$169
This Cheapflightsfares deal was found by Cheapflights users on 3/13. 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.
Tue 4/288:39 pm
PHL
-
SJU
Nonstop3h 50m
Frontier
Thu 4/301:59 am
SJU
-
PHL
Nonstop4h 09m
Frontier
Deal found 3/13$181
This Kiwi.com deal was found by Cheapflights users on 3/14. 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.
Fri 4/108:52 pm
PHL
-
SJU
Nonstop3h 42m
Multiple Airlines
Fri 4/171:59 am
SJU
-
PHL
Nonstop4h 09m
Multiple Airlines
Deal found 3/14$182
This Kiwi.com deal was found by Cheapflights users on 3/16. 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.
Sat 4/188:39 pm
PHL
-
SJU
Nonstop3h 50m
Multiple Airlines
Fri 4/242:09 am
SJU
-
PHL
Nonstop4h 03m
Multiple Airlines
Deal found 3/16$184
This Kiwi.com deal was found by Cheapflights users on 3/17. 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.
Thu 4/168:39 pm
PHL
-
SJU
Nonstop3h 50m
Multiple Airlines
Sat 4/182:09 am
SJU
-
PHL
Nonstop4h 03m
Multiple Airlines
Deal found 3/17$185
This Cheapflightsfares deal was found by Cheapflights users on 3/13. 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 4/169:02 pm
PHL
-
SJU
Nonstop3h 52m
Spirit Airlines
Mon 4/202:09 am
SJU
-
PHL
Nonstop4h 03m
Spirit Airlines
Deal found 3/13$186
This CheapOair deal was found by Cheapflights users on 3/13. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/89:02 pm
PHL
-
SJU
Nonstop3h 52m
Spirit Airlines
Thu 5/142:09 am
SJU
-
PHL
Nonstop4h 03m
Spirit Airlines
Deal found 3/13$187
This Kiwi.com deal was found by Cheapflights users on 3/17. 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 4/88:39 pm
PHL
-
SJU
Nonstop3h 50m
Multiple Airlines
Wed 4/152:09 am
SJU
-
PHL
Nonstop4h 03m
Multiple Airlines
Deal found 3/17$188
This eDestinos deal was found by Cheapflights users on 3/17. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/98:39 pm
PHL
-
SJU
Nonstop3h 50m
Frontier
Tue 4/146:30 am
SJU
-
PHL
1 stop17h 14m
Frontier
Deal found 3/17$189
This Cheapflightsfares deal was found by Cheapflights users on 3/13. 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.
Sun 5/34:42 pm
PHL
-
SJU
1 stop17h 12m
Frontier
Sun 5/104:11 pm
SJU
-
PHL
1 stop16h 10m
Frontier
Deal found 3/13$191
This CheapOair deal was found by Cheapflights users on 3/17. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/1511:40 am
PHL
-
SJU
Nonstop3h 50m
Multiple Airlines
Mon 4/202:09 am
SJU
-
PHL
Nonstop4h 03m
Multiple Airlines
Deal found 3/17$192

Find 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 March 18, 2026.

Round-trip from

$168
(eDestinos)

One-way from

$82
(eDestinos)

Popular in

December

Cheapest in

October

Average price

$300
From Philadelphia to San Juan
Search Deals
One-way flight from Philadelphia to San Juan
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($42 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($13 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
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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 March 18, 2026.
Use the filters below to find and compare flights from Philadelphia to San Juan that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Mon 5/11

2:15 pm-11:55 pm

2 stops9h 40m

San Juan Luis Munoz Marin Intl

Fri 5/15

10:00 am-10:45 pm

2 stops12h 45m

$394

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Sat 5/16

5:30 pm-11:45 pm

1 stop6h 15m

San Juan Luis Munoz Marin Intl

Wed 5/20

5:35 am-5:50 pm

2 stops12h 15m

$408
Quickest round-trip

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Fri 5/15

5:25 pm-11:55 pm

1 stop6h 30m

San Juan Luis Munoz Marin Intl

Tue 5/19

5:35 am-3:55 pm

2 stops10h 20m

$408

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Tue 6/2

11:38 am-8:34 pm

1 stop8h 56m

San Juan Luis Munoz Marin Intl

Mon 6/8

1:00 am-12:25 pm

2 stops11h 25m

$464

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Wed 6/10

1:50 pm-11:45 pm

2 stops9h 55m

San Juan Luis Munoz Marin Intl

Sun 6/14

11:35 am-7:35 pm

1 stop8h 00m

$497

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Wed 4/29

10:00 am-9:24 pm

2 stops11h 24m

San Juan Luis Munoz Marin Intl

Sun 5/3

1:00 am-9:54 am

2 stops8h 54m

$508

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Sat 5/23

11:15 am-11:15 pm

2 stops12h 00m

San Juan Luis Munoz Marin Intl

Tue 5/26

5:35 am-5:50 pm

2 stops12h 15m

$515

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Tue 4/21

1:27 pm-11:50 pm

2 stops10h 23m

San Juan Luis Munoz Marin Intl

Mon 4/27

1:00 am-9:58 am

2 stops8h 58m

$526

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Tue 5/19

7:30 am-6:10 pm

2 stops10h 40m

San Juan Luis Munoz Marin Intl

Tue 5/26

5:35 am-5:50 pm

2 stops12h 15m

$578

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Sat 5/9

10:00 am-8:34 pm

1 stop10h 34m

San Juan Luis Munoz Marin Intl

Tue 5/12

1:00 am-9:54 am

2 stops8h 54m

$608

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/17

Showing 1-10 of 23 resultsSorted by cheapest first
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3

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 March 13, 2026.

Booking 61 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 March 18, 2026.

It’s typically best to fly out from Philadelphia to San Juan at noon. Doing so could potentially save you 16% on the flight price compared to flying in the afternoon, 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 March 14, 2026.

Travelers seeking maximum savings on their Philadelphia to San Juan flight should consider departing on Monday 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.

Weekly flight availability from Philadelphia to San Juan

Explore weekly flight availability from Philadelphia to San Juan. 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 March 18, 2026.

The most flights from PHL to PR1 are scheduled on a Monday (8 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (5 on average).

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

How often are flights from Philadelphia to San Juan delayed?

About 31% of weekly flights between Philadelphia and San Juan have experienced delays in the past year, with the average delay time being 144 minutes.

What is the most punctual flight time for Philadelphia to San Juan flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Tuesday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Philadelphia to San Juan flights?

Over the last year, Spirit Airlines have had the lowest number of delays on this route, with just 26% of flights being delayed.

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 March 18, 2026.
Read through reviews of airlines operating flights from Philadelphia to San Juan, such as Delta,JetBlue, andAmerican Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,286 reviews

Entertainment

7.8

Boarding

8.1

Comfort

7.9

Food

7.2

Crew

8.5

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,286 reviews
Delta
7.9
Good
8,286 reviews

Entertainment

7.8

Boarding

8.1

Comfort

7.9

Food

7.2

Crew

8.5

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
JetBlue
7.2
Good
2,906 reviews
Delta
7.9
Good
8,286 reviews

Entertainment

7.8

Boarding

8.1

Comfort

7.9

Food

7.2

Crew

8.5

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.1
Good
11,468 reviews
Delta
7.9
Good
8,286 reviews

Entertainment

7.8

Boarding

8.1

Comfort

7.9

Food

7.2

Crew

8.5

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Spirit Airlines
6.3
Okay
8,523 reviews
Delta
7.9
Good
8,286 reviews

Entertainment

7.8

Boarding

8.1

Comfort

7.9

Food

7.2

Crew

8.5

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Frontier
5.7
Fair
3,025 reviews
Delta
7.9
Good
8,286 reviews

Entertainment

7.8

Boarding

8.1

Comfort

7.9

Food

7.2

Crew

8.5

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

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 6 flights from Philadelphia to San Juan per day from 7 different airlines.

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

    Southwest and United Airlines can get you from Philadelphia to San Juan in just under 8h 56m. Your travel time can differ by up to 44m. 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 $82. Other airlines that can offer you cheap pricing are Spirit Airlines, from $127, and Frontier, from $138. You may be able to fly from Philadelphia to San Juan for 71% 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 $74 on Frontier. Other airlines that offer cheap prices include Spirit Airlines from $74 and Southwest from $104 one-way.

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

    Consider Qatar Airways (71%), American Airlines (64%) or British Airways (56%) 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 $327 for a flight from Philadelphia to San Juan. The cheapest flight overall is $69 while the most popular route, (Philadelphia - San Juan Luis Munoz Marin Intl) is currently priced at $184.

  • 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?

    Universal Orlando Resort, Walt Disney World Resort, and International Drive are currently the most popular points of interest in Orlando at the moment. Universal Orlando Resort, Walt Disney World Resort, and International Drive can be accessed by traveling approximately 10.2 mi, 16.2 mi, and 9.9 mi, respectively from Orlando. Travelers can rent a car at Orlando for an average daily rate of $29 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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Top 7 airlines flying from Philadelphia to San Juan

Discover the top 7 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 March 18, 2026.
AirlineCheapestAverageFlexibilityOn-time
Avelo AirlinesCheapest$82Average$167FlexibilityNo cancel feeOn-timeN/A
Spirit AirlinesCheapest$127Average$270FlexibilityNo cancel feeOn-time65%
FrontierCheapest$138Average$303FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$164Average$352FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$207Average$460FlexibilityNo cancel feeOn-time63%
DeltaCheapest$215Average$385FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$265Average$483FlexibilityNo cancel feeOn-time71%

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