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Cheap flights from Philadelphia to San Juan Luis Munoz Marin Intl Airport from £84

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 4/10. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — SJU
1 Sep — 8 Sep1
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 2 August 2026.

Wed 11/1115:33
PHL
-
SJU
1 stop6h 40m
Delta
Tue 17/1118:35
SJU
-
PHL
1 stop7h 20m
Delta
Deal found 29/7£168
Tue 15/906:25
PHL
-
SJU
2 stops14h 13m
United Airlines
Mon 28/916:55
SJU
-
PHL
1 stop6h 35m
United Airlines
Deal found 29/7£190
Thu 27/816:40
PHL
-
SJU
1 stop7h 10m
Southwest
Fri 28/805:00
SJU
-
PHL
1 stop10h 25m
Southwest
Deal found 28/7£194
Sun 23/816:05
PHL
-
SJU
1 stop8h 25m
Southwest
Fri 28/805:00
SJU
-
PHL
1 stop10h 25m
Southwest
Deal found 29/7£198
Mon 14/906:16
PHL
-
SJU
1 stop9h 26m
United Airlines
Sun 20/901:00
SJU
-
PHL
2 stops8h 43m
United Airlines
Deal found 2/8£203
Tue 25/810:30
PHL
-
SJU
2 stops13h 20m
United Airlines
Tue 1/915:56
SJU
-
PHL
1 stop9h 03m
United Airlines
Deal found 29/7£205
Fri 28/806:25
PHL
-
SJU
2 stops14h 13m
United Airlines
Fri 4/915:56
SJU
-
PHL
1 stop9h 03m
United Airlines
Deal found 29/7£205
Mon 31/816:40
PHL
-
SJU
1 stop7h 10m
Southwest
Wed 2/906:00
SJU
-
PHL
2 stops11h 35m
Southwest
Deal found 30/7£206
Sun 13/906:16
PHL
-
SJU
1 stop9h 26m
United Airlines
Sat 19/901:00
SJU
-
PHL
2 stops11h 23m
United Airlines
Deal found 1/8£208
Fri 25/906:10
PHL
-
SJU
2 stops14h 28m
United Airlines
Sun 4/1007:00
SJU
-
PHL
1 stop9h 49m
United Airlines
Deal found 31/7£216
Tue 18/806:25
PHL
-
SJU
1 stop8h 19m
United Airlines
Wed 26/801:00
SJU
-
PHL
2 stops11h 23m
United Airlines
Deal found 28/7£219
Fri 13/1106:40
PHL
-
SJU
1 stop9h 45m
Delta
Wed 18/1118:35
SJU
-
PHL
1 stop7h 20m
Delta
Deal found 29/7£223

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 2 August 2026.

Round-trip from

£168

One-way from

£84

Popular in

December

Cheapest in

October

Average price

£225
Delta
  • Delta
  • 11/11-17/11
  • 2 total stops
  • 14h 00m total
  • Philadelphia to San Juan
Search Deals
Delta
  • Delta
  • 4/10
  • 1 total stop
  • 8h 25m 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 (£7 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 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 2 August 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

Sat 29/8

06:25-14:44

1 stop8h 19m

San Juan Luis Munoz Marin Intl

Sat 5/9

15:56-00:59

1 stop9h 03m

£190

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Wed 2/9

06:25-14:44

1 stop8h 19m

San Juan Luis Munoz Marin Intl

Tue 8/9

01:00-14:40

2 stops13h 40m

£190

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Mon 31/8

16:40-23:50

1 stop7h 10m

San Juan Luis Munoz Marin Intl

Wed 2/9

06:00-17:35

2 stops11h 35m

£225

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Thu 10/9

11:04-23:50

2 stops12h 46m

San Juan Luis Munoz Marin Intl

Wed 16/9

01:00-09:43

2 stops8h 43m

£228

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Sat 5/9

08:20-20:38

2 stops12h 18m

San Juan Luis Munoz Marin Intl

Wed 9/9

01:00-09:43

2 stops8h 43m

£243
Fastest return journey

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Tue 1/12

06:00-14:00

1 stop7h 00m

San Juan Luis Munoz Marin Intl

Sat 12/12

18:35-00:55

1 stop7h 20m

£255

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Sat 29/8

12:10-21:55

2 stops9h 45m

San Juan Luis Munoz Marin Intl

Tue 1/9

08:20-17:35

1 stop9h 15m

£257

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Tue 8/9

07:15-18:10

2 stops10h 55m

San Juan Luis Munoz Marin Intl

Tue 15/9

08:20-18:00

2 stops9h 40m

£268

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Sun 23/8

07:20-17:05

2 stops9h 45m

San Juan Luis Munoz Marin Intl

Sun 23/8

21:25-09:40

1 stop12h 15m

£327

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Sun 13/9

06:16-15:42

1 stop9h 26m

San Juan Luis Munoz Marin Intl

Wed 16/9

01:00-09:43

2 stops8h 43m

£332

Flights are sorted by cheapest return flights first.

Deals found on 31/7

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 £179). Flying from Philadelphia to San Juan Luis Munoz Marin Intl Airport in December is currently the most expensive (average of £316). 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 2 August 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?

Airfare is below average for this route at the moment.

Philadelphia to San Juan Luis Munoz Marin Intl Airport flights typically cost between £182 and £284 in November.
The cheapest return price found within the last 5 days was £168 on Delta (11 Nov–17 Nov).

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 5 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, Southwest, and JetBlue fly from Philadelphia to San Juan Luis Munoz Marin Intl Airport in about 6h 48m. The time it takes to get you to your destination can typically vary by up to 1h 31m. 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 (73%), Frontier (70%), British Airways( 68%).

  • 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 £179). Flying from Philadelphia to San Juan Luis Munoz Marin Intl Airport in December is currently the most expensive (average of £316). 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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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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