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Cheap flights from Philadelphia to San Juan Luis Munoz Marin Intl Airport from £118

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 25/3. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — SJU
29 Mar — 5 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Philadelphia to Luis Munoz Marin Intl

Enter your travel dates to find the best prices.

Cheapest flights from Philadelphia to Luis Munoz Marin Intl
Explore the most affordable flight options available from Philadelphia to Luis Munoz Marin Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 27 February 2026.

Fri 10/420:39
PHL
-
SJU
Nonstop3h 50m
Frontier
Fri 17/413:55
SJU
-
PHL
Nonstop4h 09m
Frontier
Deal found 24/2£119
Tue 5/511:32
PHL
-
SJU
1 stop9h 02m
United Airlines
Wed 6/501:00
SJU
-
PHL
2 stops8h 54m
United Airlines
Deal found 24/2£202
Thu 1/1012:00
PHL
-
SJU
Nonstop3h 50m
JetBlue
Sun 4/1007:00
SJU
-
PHL
Nonstop4h 05m
JetBlue
Deal found 25/2£204
Wed 15/410:00
PHL
-
SJU
2 stops13h 50m
United Airlines
Tue 21/401:00
SJU
-
PHL
2 stops13h 16m
United Airlines
Deal found 24/2£211
Thu 10/1211:00
PHL
-
SJU
Nonstop3h 50m
JetBlue
Tue 15/1207:00
SJU
-
PHL
Nonstop4h 05m
JetBlue
Deal found 25/2£213
Mon 27/406:17
PHL
-
SJU
2 stops14h 21m
United Airlines
Wed 29/401:00
SJU
-
PHL
2 stops8h 54m
United Airlines
Deal found 25/2£215
Sat 14/320:44
PHL
-
SJU
Nonstop3h 45m
Frontier
Thu 19/301:59
SJU
-
PHL
Nonstop4h 12m
Frontier
Deal found 27/2£218
Wed 15/410:00
PHL
-
SJU
2 stops11h 24m
United Airlines
Thu 16/401:00
SJU
-
PHL
2 stops13h 16m
United Airlines
Deal found 26/2£219
Sat 25/405:30
PHL
-
SJU
1 stop7h 55m
Delta
Tue 28/412:55
SJU
-
PHL
1 stop7h 58m
Delta
Deal found 26/2£220
Mon 15/612:04
PHL
-
SJU
Nonstop3h 52m
JetBlue
Thu 25/607:00
SJU
-
PHL
Nonstop4h 01m
JetBlue
Deal found 25/2£222

Find flight deals from Philadelphia to Luis Munoz Marin Intl

Discover tips and strategies to find the most affordable flight options for your journey from Philadelphia (PHL) to Luis Munoz Marin Intl (SJU). 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 27 February 2026.

Round-trip from

£119

One-way from

£118

Popular in

December

Cheapest in

October

Average price

£191
Frontier
  • Frontier
  • 10/4-17/4
  • Nonstop
  • 7h 59m total
  • Philadelphia to San Juan
Search Deals
Frontier
  • Frontier
  • 25/3
  • 1 total stop
  • 7h 07m total
  • Philadelphia to San Juan
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£25 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (£8 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Philadelphia to Luis Munoz Marin Intl 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 858,174 searches. Data last updated 27 February 2026.
Use the filters below to find and compare flights from Philadelphia to San Juan Luis Munoz Marin Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Mon 13/4

10:00-20:34

1 stop10h 34m

San Juan Luis Munoz Marin Intl

Wed 15/4

01:00-09:58

2 stops8h 58m

£202

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Tue 5/5

06:10-21:24

2 stops15h 14m

San Juan Luis Munoz Marin Intl

Mon 11/5

01:00-09:54

2 stops8h 54m

£202

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Tue 5/5

11:32-23:50

2 stops12h 18m

San Juan Luis Munoz Marin Intl

Thu 7/5

07:20-14:20

1 stop7h 00m

£269

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Sat 2/5

10:00-23:50

2 stops13h 50m

San Juan Luis Munoz Marin Intl

Fri 8/5

01:00-14:16

2 stops13h 16m

£269

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Sun 3/5

10:00-20:34

1 stop10h 34m

San Juan Luis Munoz Marin Intl

Mon 11/5

01:00-09:54

2 stops8h 54m

£287

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Sun 26/4

06:04-20:38

2 stops14h 34m

San Juan Luis Munoz Marin Intl

Wed 29/4

01:00-09:54

2 stops8h 54m

£287

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Thu 2/7

05:30-13:30

1 stop8h 00m

San Juan Luis Munoz Marin Intl

Tue 7/7

14:35-23:00

1 stop8h 25m

£309

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Mon 1/6

12:45-23:55

2 stops11h 10m

San Juan Luis Munoz Marin Intl

Mon 8/6

13:15-00:15

2 stops11h 00m

£338

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Sat 22/8

06:10-20:38

2 stops14h 28m

San Juan Luis Munoz Marin Intl

Wed 26/8

01:05-09:24

2 stops8h 19m

£341

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Sat 9/5

06:15-17:35

2 stops11h 20m

San Juan Luis Munoz Marin Intl

Mon 18/5

05:05-15:50

2 stops10h 45m

£346

Flights are sorted by cheapest return flights first.

Deals found on 26/2

Showing 1-10 of 23 resultsSorted by cheapest first
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Best time to book a flight from Philadelphia to Luis Munoz Marin Intl

Have a flexible travel schedule? Discover the best time to fly to Luis Munoz Marin Intl from Philadelphia with our price prediction graph.
Estimated return 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 Luis Munoz Marin Intl Airport

How far ahead should I book a flight from Philadelphia to San Juan Luis Munoz Marin Intl Airport?

Use this chart to determine the optimal time to book a return flight from Philadelphia to Luis Munoz Marin Intl. Price data was last updated on 20 February 2026.

The best time to book flights from Philadelphia to San Juan Luis Munoz Marin Intl Airport is 19 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Philadelphia to San Juan Luis Munoz Marin Intl Airport?

Currently, January is the cheapest month in which you can book a flight from Philadelphia to San Juan Luis Munoz Marin Intl Airport (average of £53). Flying from Philadelphia to San Juan Luis Munoz Marin Intl Airport in August is currently the most expensive (average of £102). 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 Luis Munoz Marin Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 27 February 2026.

When flying from Philadelphia to San Juan Luis Munoz Marin Intl Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Related info for your journey

Find useful and relevant information for your journey from Philadelphia to Luis Munoz Marin Intl. 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 Luis Munoz Marin Intl?

    If you book a flight to San Juan Luis Munoz Marin Intl 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 Luis Munoz Marin Intl per day from 0 different airlines.

  • How long is the flight from Philadelphia to San Juan Luis Munoz Marin Intl Airport?

    Airlines like Frontier and United Airlines fly from Philadelphia to San Juan Luis Munoz Marin Intl Airport in about 3h 50m. The time it takes to get you to your destination can typically vary by up to 10h 38m. The distance from Philadelphia to San Juan Luis Munoz Marin Intl Airport is about 1579 mi. This flight may include one or multiple stops.

  • What are the most reliable airlines from Philadelphia to San Juan Luis Munoz Marin Intl Airport?

    Before booking your flight to San Juan Luis Munoz Marin Intl Airport from Philadelphia, check out the most reliable airlines to get you to your destination on time: American Airlines (67%), Qatar Airways (64%), Spirit Airlines( 63%).

  • Can I find deals for flights from Philadelphia to Luis Munoz Marin Intl that include hotel bookings?

    Yes. In addition to deals on Philadelphia to Luis Munoz Marin Intl flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Philadelphia to Luis Munoz Marin Intl?

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

  • Can I find deals for business class flights from Philadelphia to Luis Munoz Marin Intl?

    Yes. Cheapflights offers flight deals from Philadelphia to Luis Munoz Marin Intl 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 Luis Munoz Marin Intl Airport?

    Currently, January is the cheapest month in which you can book a flight from Philadelphia to San Juan Luis Munoz Marin Intl Airport (average of £53). Flying from Philadelphia to San Juan Luis Munoz Marin Intl Airport in August is currently the most expensive (average of £102). 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

Travelling to a place near San Juan Luis Munoz Marin Intl Airport?

Book flights to San Juan Luis Munoz Marin Intl Airport if you plan to visit one of these locations
Bayamón

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Alternative routes for Philadelphia to Luis Munoz Marin Intl

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How does Cheapflights help users find flights from Philadelphia to Luis Munoz Marin Intl?

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Why should you use Cheapflights to find cheap flight tickets from Philadelphia to Luis Munoz Marin Intl?

Millions of users choose and trust Cheapflights to book the best flight deals from Philadelphia to Luis Munoz Marin Intl for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Philadelphia to Luis Munoz Marin Intl with no change fees?

Yes, we can. To see specific flights from Philadelphia to Luis Munoz Marin Intl with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Philadelphia to Luis Munoz Marin Intl become cheaper?

Not ready to book yet? You can track prices for flights from Philadelphia to Luis Munoz Marin Intl on Cheapflights with our Price Alert feature and get notified when better prices are available.

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