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Cheap flights from Philadelphia to San Juan Luis Munoz Marin Intl Airport from £103

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 11/5. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — SJU
11 May — 18 May1
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 11 April 2026.

Fri 22/508:00
PHL
-
SJU
1 stop9h 14m
Frontier
Fri 29/517:15
SJU
-
PHL
1 stop13h 57m
Frontier
Deal found 6/4£178
Wed 29/410:00
PHL
-
SJU
2 stops11h 24m
United Airlines
Tue 5/501:00
SJU
-
PHL
2 stops13h 16m
United Airlines
Deal found 10/4£190
Fri 22/508:00
PHL
-
SJU
1 stop9h 14m
Multiple Airlines
Thu 28/501:30
SJU
-
PHL
Nonstop4h 05m
Multiple Airlines
Deal found 6/4£191
Tue 5/506:10
PHL
-
SJU
1 stop8h 34m
United Airlines
Mon 11/501:00
SJU
-
PHL
2 stops8h 54m
United Airlines
Deal found 7/4£205
Mon 4/510:00
PHL
-
SJU
2 stops11h 24m
United Airlines
Thu 21/501:00
SJU
-
PHL
2 stops8h 45m
United Airlines
Deal found 7/4£220
Thu 14/512:00
PHL
-
SJU
Nonstop3h 44m
JetBlue
Sun 17/507:00
SJU
-
PHL
Nonstop4h 09m
JetBlue
Deal found 10/4£225
Wed 13/506:10
PHL
-
SJU
2 stops15h 14m
United Airlines
Wed 20/501:00
SJU
-
PHL
2 stops8h 45m
United Airlines
Deal found 7/4£233
Sun 19/406:00
PHL
-
SJU
1 stop6h 52m
Delta
Wed 22/406:15
SJU
-
PHL
1 stop11h 08m
Delta
Deal found 10/4£235
Wed 6/506:10
PHL
-
SJU
2 stops15h 14m
United Airlines
Thu 7/501:00
SJU
-
PHL
2 stops8h 54m
United Airlines
Deal found 6/4£239
Mon 4/510:00
PHL
-
SJU
2 stops11h 24m
United Airlines
Thu 7/501:00
SJU
-
PHL
2 stops8h 54m
United Airlines
Deal found 7/4£240
Fri 2/1012:00
PHL
-
SJU
Nonstop3h 49m
JetBlue
Mon 5/1007:10
SJU
-
PHL
Nonstop3h 55m
JetBlue
Deal found 10/4£249

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 11 April 2026.

Round-trip from

£178

One-way from

£103

Popular in

December

Cheapest in

October

Average price

£219
Frontier
  • Frontier
  • 22/5-29/5
  • 2 total stops
  • 23h 11m total
  • Philadelphia to San Juan
Search Deals
Southwest
  • Southwest
  • 11/5
  • 2 total stops
  • 10h 55m total
  • Philadelphia to San Juan
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£21 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£8 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 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 11 April 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
Fastest return journey

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Fri 2/10

12:00-15:49

Nonstop3h 49m

San Juan Luis Munoz Marin Intl

Mon 5/10

07:10-11:05

Nonstop3h 55m

£249

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Fri 22/5

07:00-10:44

Nonstop3h 44m

San Juan Luis Munoz Marin Intl

Thu 28/5

01:30-05:35

Nonstop4h 05m

£261

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Tue 5/5

06:10-20:38

2 stops14h 28m

San Juan Luis Munoz Marin Intl

Mon 18/5

01:00-09:54

2 stops8h 54m

£268

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Fri 31/7

13:50-00:05

1 stop10h 15m

San Juan Luis Munoz Marin Intl

Fri 7/8

06:30-17:25

2 stops10h 55m

£295

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Mon 17/8

12:45-22:15

2 stops9h 30m

San Juan Luis Munoz Marin Intl

Sun 23/8

05:30-15:55

2 stops10h 25m

£306

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Wed 29/7

09:35-19:45

2 stops10h 10m

San Juan Luis Munoz Marin Intl

Wed 5/8

08:20-17:35

1 stop9h 15m

£318

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Thu 1/10

14:30-00:35

2 stops10h 05m

San Juan Luis Munoz Marin Intl

Sun 4/10

22:50-11:40

1 stop12h 50m

£348

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Tue 4/8

10:45-22:00

2 stops11h 15m

San Juan Luis Munoz Marin Intl

Tue 11/8

10:30-17:35

1 stop7h 05m

£348

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Tue 4/8

06:25-18:10

2 stops11h 45m

San Juan Luis Munoz Marin Intl

Tue 18/8

05:15-16:00

2 stops10h 45m

£348

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Thu 4/6

14:00-01:20

2 stops11h 20m

San Juan Luis Munoz Marin Intl

Tue 9/6

07:00-17:00

2 stops10h 00m

£358

Flights are sorted by cheapest return flights first.

Deals found on 7/4

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?

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 10 April 2026.

The best time to book flights from Philadelphia to San Juan Luis Munoz Marin Intl Airport is 59 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 £103). 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 11 April 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 7 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 United Airlines, Spirit Airlines, and Southwest fly from Philadelphia to San Juan Luis Munoz Marin Intl Airport in about 3h 44m. The time it takes to get you to your destination can typically vary by up to 7h 40m. 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: JetBlue (71%), Qatar Airways (69%), American 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 £103). 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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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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