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Cheap flights from Philadelphia to San Juan Luis Munoz Marin Intl Airport from £104

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 17/8. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — SJU
8 Jul — 15 Jul1
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 8 June 2026.

Tue 25/806:25
PHL
-
SJU
1 stop8h 19m
United Airlines
Tue 1/915:56
SJU
-
PHL
1 stop9h 03m
United Airlines
Deal found 8/6£208
Mon 24/816:40
PHL
-
SJU
1 stop7h 10m
Southwest
Fri 28/806:30
SJU
-
PHL
1 stop8h 55m
Southwest
Deal found 3/6£216
Fri 28/807:00
PHL
-
SJU
1 stop9h 55m
Southwest
Sat 19/914:50
SJU
-
PHL
1 stop6h 35m
Southwest
Deal found 7/6£222
Sat 29/806:25
PHL
-
SJU
1 stop8h 19m
United Airlines
Sun 6/915:56
SJU
-
PHL
1 stop9h 03m
United Airlines
Deal found 7/6£223
Fri 28/816:40
PHL
-
SJU
1 stop7h 10m
Southwest
Sat 29/805:05
SJU
-
PHL
1 stop6h 30m
Southwest
Deal found 7/6£226
Sat 15/806:25
PHL
-
SJU
2 stops14h 13m
United Airlines
Sat 22/815:56
SJU
-
PHL
1 stop9h 03m
United Airlines
Deal found 6/6£227
Fri 21/816:40
PHL
-
SJU
1 stop7h 10m
Southwest
Mon 24/805:00
SJU
-
PHL
1 stop10h 25m
Southwest
Deal found 3/6£228
Mon 21/912:00
PHL
-
SJU
Nonstop3h 49m
JetBlue
Mon 28/907:10
SJU
-
PHL
Nonstop3h 55m
JetBlue
Deal found 5/6£229
Thu 24/907:00
PHL
-
SJU
1 stop9h 55m
Southwest
Sun 27/911:35
SJU
-
PHL
1 stop11h 55m
Southwest
Deal found 8/6£229
Mon 24/806:16
PHL
-
SJU
1 stop9h 26m
United Airlines
Sat 5/915:56
SJU
-
PHL
1 stop9h 03m
United Airlines
Deal found 6/6£232
Fri 21/816:40
PHL
-
SJU
1 stop7h 10m
Southwest
Tue 1/905:15
SJU
-
PHL
2 stops10h 45m
Southwest
Deal found 4/6£235

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 8 June 2026.

Round-trip from

£208

One-way from

£104

Popular in

December

Cheapest in

October

Average price

£253

Good one-way deal

£302 or less
United Airlines
  • United Airlines
  • 25/8-1/9
  • 2 total stops
  • 17h 22m total
  • Philadelphia to San Juan
Search Deals
Southwest
  • Southwest
  • 17/8
  • 1 total stop
  • 9h 55m total
  • Philadelphia to San Juan
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (£18 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£7 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2026
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Price to beat on a one-way flight from Philadelphia to San Juan Luis Munoz Marin Intl.
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 8 June 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

Cheapest return flight

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Thu 24/9

16:40-23:50

1 stop7h 10m

San Juan Luis Munoz Marin Intl

Sun 27/9

11:35-23:30

1 stop11h 55m

£229

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Fri 21/8

14:10-23:50

2 stops9h 40m

San Juan Luis Munoz Marin Intl

Sun 30/8

21:25-09:40

1 stop12h 15m

£273

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Fri 2/10

14:30-00:05

2 stops9h 35m

San Juan Luis Munoz Marin Intl

Mon 5/10

05:00-15:50

2 stops10h 50m

£280

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Thu 10/9

12:45-23:05

2 stops10h 20m

San Juan Luis Munoz Marin Intl

Sun 13/9

21:25-09:40

1 stop12h 15m

£286

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Fri 28/8

07:00-16:55

1 stop9h 55m

San Juan Luis Munoz Marin Intl

Mon 7/9

06:30-17:25

2 stops10h 55m

£288
Fastest return journey

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Mon 9/11

13:00-23:04

1 stop9h 04m

San Juan Luis Munoz Marin Intl

Wed 9/12

07:00-10:05

Nonstop4h 05m

£289

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Wed 26/8

06:25-18:10

2 stops11h 45m

San Juan Luis Munoz Marin Intl

Sun 30/8

05:00-15:30

2 stops10h 30m

£297

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Thu 13/8

16:40-23:50

1 stop7h 10m

San Juan Luis Munoz Marin Intl

Tue 18/8

05:15-16:00

2 stops10h 45m

£309

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Thu 20/8

12:45-23:05

2 stops10h 20m

San Juan Luis Munoz Marin Intl

Sat 29/8

06:25-16:10

2 stops9h 45m

£337

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Sat 15/8

08:55-19:20

2 stops10h 25m

San Juan Luis Munoz Marin Intl

Mon 24/8

06:30-17:25

2 stops10h 55m

£349

Flights are sorted by cheapest return flights first.

Deals found on 7/6

Showing 1-10 of 22 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?

The best time to book flights from Philadelphia to San Juan Luis Munoz Marin Intl Airport is 58 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, October is the cheapest month in which you can book a flight from Philadelphia to San Juan Luis Munoz Marin Intl Airport (average of £176). Flying from Philadelphia to San Juan Luis Munoz Marin Intl Airport in December is currently the most expensive (average of £319). 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 8 June 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.

How much does it cost for a return flight from Philadelphia to San Juan Luis Munoz Marin Intl Airport?

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 Southwest fly from Philadelphia to San Juan Luis Munoz Marin Intl Airport in about 7h 10m. 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: British Airways (83%), JetBlue (82%), American Airlines( 80%).

  • What are the cheapest flights from Philadelphia to San Juan Luis Munoz Marin Intl Airport?

    While on average a flight from Philadelphia to San Juan Luis Munoz Marin Intl Airport is generally £303, our data shows the cheapest flight currently is £242. When looking at the most popular route, (Philadelphia - San Juan Luis Munoz Marin Intl), you can expect to pay £378 for that flight.

  • 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, October is the cheapest month in which you can book a flight from Philadelphia to San Juan Luis Munoz Marin Intl Airport (average of £176). Flying from Philadelphia to San Juan Luis Munoz Marin Intl Airport in December is currently the most expensive (average of £319). 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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