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Cheap flights from Philadelphia to San Juan Luis Munoz Marin Intl Airport from £95

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 1/9. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — SJU
12 Sep — 19 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 13 August 2026.

Tue 1/910:45 -
2 stops11h 15m
Wed 2/908:20 -
1 stop9h 15m
Deal found 11/8£186
Tue 1/912:10 -
1 stop10h 19m
Thu 10/917:59 -
1 stop6h 41m
Deal found 11/8£190
Thu 27/812:38 -
Nonstop3h 52m
Thu 3/907:45 -
Nonstop4h 01m
Deal found 12/8£196
Thu 17/911:53 -
Nonstop3h 50m
Sun 20/907:10 -
Nonstop3h 53m
Deal found 9/8£197
Mon 21/916:40 -
1 stop7h 15m
Tue 29/906:00 -
2 stops11h 35m
Deal found 13/8£206
Sat 29/812:38 -
Nonstop3h 52m
Wed 2/907:45 -
Nonstop4h 01m
Deal found 13/8£211
Wed 26/810:45 -
2 stops11h 15m
Wed 2/908:20 -
1 stop9h 15m
Deal found 10/8£212
Fri 25/916:40 -
1 stop7h 15m
Tue 29/906:00 -
2 stops11h 35m
Deal found 11/8£213
Sat 5/911:29 -
1 stop11h 00m
Thu 10/917:59 -
1 stop6h 41m
Deal found 12/8£216
Thu 27/816:40 -
1 stop7h 10m
Wed 2/908:20 -
1 stop9h 15m
Deal found 12/8£219

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 13 August 2026.

Round-trip from

£186

One-way from

£95

Popular in

December

Cheapest in

October

Average price

£226
Southwest
  • Southwest
  • 1/9-2/9
  • 3 total stops
  • 20h 30m total
  • Philadelphia to San Juan
Search Deals
Southwest
  • Southwest
  • 1/9
  • 2 total stops
  • 11h 15m 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 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 13 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 Philadelphia - SJU San Juan Luis Munoz Marin Intl

PHLSJU

Philadelphia

Sun 8/11

06:35-17:49

1 stop10h 14m

San Juan Luis Munoz Marin Intl

Tue 10/11

07:00-16:12

1 stop10h 12m

£242

PhiladelphiaSan Juan

PHL Philadelphia - SJU San Juan Luis Munoz Marin Intl

PHLSJU

Philadelphia

Wed 7/10

06:35-13:49

1 stop7h 14m

San Juan Luis Munoz Marin Intl

Mon 12/10

14:59-00:56

1 stop9h 57m

£242

PhiladelphiaSan Juan

PHL Philadelphia - SJU San Juan Luis Munoz Marin Intl

PHLSJU

Philadelphia

Sat 19/9

14:30-22:19

1 stop7h 49m

San Juan Luis Munoz Marin Intl

Wed 30/9

07:00-16:13

1 stop9h 13m

£242

PhiladelphiaSan Juan

PHL Philadelphia - SJU San Juan Luis Munoz Marin Intl

PHLSJU

Philadelphia

Thu 12/11

05:30-17:50

2 stops11h 20m

San Juan Luis Munoz Marin Intl

Tue 17/11

06:40-17:25

2 stops11h 45m

£262

PhiladelphiaSan Juan

PHL Philadelphia - SJU San Juan Luis Munoz Marin Intl

PHLSJU

Philadelphia

Mon 7/12

05:15-17:25

1 stop11h 10m

San Juan Luis Munoz Marin Intl

Wed 9/12

18:35-00:55

1 stop7h 20m

£273

PhiladelphiaSan Juan

PHL Philadelphia - SJU San Juan Luis Munoz Marin Intl

PHLSJU

Philadelphia

Wed 4/11

09:45-21:00

1 stop10h 15m

San Juan Luis Munoz Marin Intl

Sat 7/11

08:05-21:34

2 stops14h 29m

£279

PhiladelphiaSan Juan

PHL Philadelphia - SJU San Juan Luis Munoz Marin Intl

PHLSJU

Philadelphia

Mon 9/11

13:16-00:36

2 stops10h 20m

San Juan Luis Munoz Marin Intl

Fri 13/11

02:05-14:17

2 stops13h 12m

£279

PhiladelphiaSan Juan

PHL Philadelphia - SJU San Juan Luis Munoz Marin Intl

PHLSJU

Philadelphia

Fri 6/11

13:00-23:04

1 stop9h 04m

San Juan Luis Munoz Marin Intl

Wed 11/11

07:00-14:35

1 stop8h 35m

£284

PhiladelphiaSan Juan

PHL Philadelphia - SJU San Juan Luis Munoz Marin Intl

PHLSJU

Philadelphia

Fri 2/10

06:10-14:44

1 stop8h 34m

San Juan Luis Munoz Marin Intl

Fri 2/10

01:00-09:42

2 stops8h 42m

£327
Fastest return journey

PhiladelphiaSan Juan

PHL Philadelphia - SJU San Juan Luis Munoz Marin Intl

PHLSJU

Philadelphia

Thu 5/11

13:00-23:04

1 stop9h 04m

San Juan Luis Munoz Marin Intl

Mon 9/11

06:25-12:05

1 stop6h 40m

£328

Flights are sorted by cheapest return flights first.

Deals found on 10/8

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?

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 £182). 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 13 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 typical for this route at the moment.

Philadelphia to San Juan Luis Munoz Marin Intl Airport flights typically cost between £177 and £288 in September.
The cheapest return price found within the last 5 days was £186 on Southwest (1 Sept–2 Sept).

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 Southwest, Delta, and JetBlue fly from Philadelphia to San Juan Luis Munoz Marin Intl Airport in about 3h 52m. The time it takes to get you to your destination can typically vary by up to 7h 23m. 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 £182). 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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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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