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Cheap flights from Philadelphia to San Juan Luis Munoz Marin Intl Airport from £82

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 15/9. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — SJU
26 Aug — 2 Sep1
1 adult

Cheapflights Tip: The best prices from Philadelphia to San Juan Luis Munoz Marin Intl are usually found in October or September, booked 28 days in advance, depart on a Tuesday or Monday and return on a Wednesday

Cheap 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 21 August 2025.

Round-trip from

£163

One-way from

£82

Popular in

December

Cheapest in

October

Average price

£223
Delta
  • Delta
  • 31/10-5/11
  • 2 total stops
  • 18h 33m total
  • Philadelphia to San Juan
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Delta
  • Delta
  • 14/10
  • 1 total stop
  • 7h 34m total
  • Philadelphia to San Juan
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (£11 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£6 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2025
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Find flight deals from Philadelphia to Luis Munoz Marin Intl

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 21 August 2025.

Fri 31/1006:00PHL - SJU
1 stop10h 33mDelta
Mon 3/1118:43SJU - PHL
1 stop7h 09mDelta
Deal found 19/8£163
Wed 10/1205:55PHL - SJU
1 stop10h 20mDelta
Fri 12/1213:50SJU - PHL
1 stop11h 33mDelta
Deal found 19/8£177
Tue 2/1206:00PHL - SJU
1 stop7h 15mDelta
Sat 6/1207:30SJU - PHL
1 stop8h 29mDelta
Deal found 19/8£196
Wed 15/1011:45PHL - SJU
1 stop8h 34mJetBlue
Tue 28/1004:05SJU - PHL
1 stop7h 03mJetBlue
Deal found 20/8£208
Wed 1/1011:45PHL - SJU
1 stop8h 35mJetBlue
Sat 4/1002:30SJU - PHL
1 stop6h 52mJetBlue
Deal found 19/8£215
Thu 4/907:00PHL - SJU
1 stop9h 05mJetBlue
Mon 8/913:00SJU - PHL
1 stop8h 50mJetBlue
Deal found 20/8£223
Tue 9/1205:55PHL - SJU
1 stop10h 20mDelta
Thu 29/114:10SJU - PHL
1 stop7h 27mDelta
Deal found 21/8£228
Wed 22/1010:15PHL - SJU
2 stops12h 30mSouthwest
Sun 2/1105:40SJU - PHL
1 stop6h 45mSouthwest
Deal found 19/8£235
Mon 17/1107:00PHL - SJU
1 stop10h 13mJetBlue
Tue 25/1116:28SJU - PHL
1 stop8h 34mJetBlue
Deal found 20/8£249
Wed 24/910:30PHL - SJU
2 stops12h 00mSouthwest
Mon 29/905:00SJU - PHL
1 stop7h 20mSouthwest
Deal found 18/8£254
Mon 17/1117:15PHL - SJU
1 stop6h 20mSouthwest
Tue 9/1206:40SJU - PHL
2 stops11h 35mSouthwest
Deal found 19/8£260
Mon 3/1110:34PHL - SJU
2 stops13h 02mUnited Airlines
Fri 7/1108:30SJU - PHL
2 stops15h 33mUnited Airlines
Deal found 19/8£264

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 21 August 2025.
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

Philadelphia

Fly to

Luis Munoz Marin Intl

Route

Depart

Return

Price

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Sat 27/9

05:25-11:48

1 stop6h 23m

San Juan Luis Munoz Marin Intl

Thu 2/10

17:41-00:54

1 stop7h 13m

£163

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Fri 31/10

06:00-16:33

1 stop10h 33m

San Juan Luis Munoz Marin Intl

Mon 3/11

18:43-00:52

1 stop7h 09m

£163

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Sun 14/9

05:25-13:16

1 stop7h 51m

San Juan Luis Munoz Marin Intl

Thu 18/9

17:41-00:54

1 stop7h 13m

£163

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Fri 31/10

10:35-21:59

1 stop11h 24m

San Juan Luis Munoz Marin Intl

Tue 4/11

18:43-00:52

1 stop7h 09m

£163

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Mon 1/9

06:00-13:10

1 stop7h 10m

San Juan Luis Munoz Marin Intl

Thu 11/9

14:26-00:54

1 stop10h 28m

£163

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Tue 14/10

14:25-21:59

1 stop7h 34m

San Juan Luis Munoz Marin Intl

Fri 24/10

17:43-00:52

1 stop7h 09m

£163

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Wed 8/10

08:00-16:33

1 stop8h 33m

San Juan Luis Munoz Marin Intl

Sat 11/10

14:22-23:05

1 stop8h 43m

£163

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Mon 13/10

06:00-13:12

1 stop7h 12m

San Juan Luis Munoz Marin Intl

Sat 18/10

17:43-00:52

1 stop7h 09m

£163

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Fri 31/10

10:35-21:59

1 stop11h 24m

San Juan Luis Munoz Marin Intl

Wed 5/11

18:43-00:52

1 stop7h 09m

£163

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Mon 1/9

06:00-13:10

1 stop7h 10m

San Juan Luis Munoz Marin Intl

Thu 2/10

17:41-00:54

1 stop7h 13m

£163

Flights are sorted by cheapest return flights first.

Deals found on 18/8

Showing 1-10 of 22 results
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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 8 August 2025.

The best time to book flights from Philadelphia to San Juan Luis Munoz Marin Intl Airport is 28 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, April is the cheapest month in which you can book a flight from Philadelphia to San Juan Luis Munoz Marin Intl Airport (average of £631). Flying from Philadelphia to San Juan Luis Munoz Marin Intl Airport in July is currently the most expensive (average of £1,027). 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 21 August 2025.

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 4 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 Delta fly from Philadelphia to San Juan Luis Munoz Marin Intl Airport in about 7h 51m. The time it takes to get you to your destination can typically vary by up to . The distance from Philadelphia to San Juan Luis Munoz Marin Intl Airport is about 1579 mi.

  • 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: Spirit Airlines (77%), Frontier (47%), American Airlines( 46%).

  • 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, April is the cheapest month in which you can book a flight from Philadelphia to San Juan Luis Munoz Marin Intl Airport (average of £631). Flying from Philadelphia to San Juan Luis Munoz Marin Intl Airport in July is currently the most expensive (average of £1,027). 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 Luis Munoz Marin Intl

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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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