Cheap Flights from Philadelphia (PHL) to San Juan (SIG)

Popular airlines from Philadelphia Intl. Airport (PHL) to San Juan (SIG-Fernando Luis Ribas Dominicci)

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Alternative airports near San Juan

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Luis Munoz Marin Intl. SJU. Cheapest option available. Average driving time to city center is 16 minutes. Flights from $228
SJU
Luis Munoz Marin Intl.
Cheapest
Average driving time to city center16 min
Flights from $228
Flights from Philadelphia (PHL) to San Juan (SIG)
Origin airport
Philadelphia Intl.
Destination airport
Fernando Luis Ribas Dominicci
Distance
1577 mi

Philadelphia to San Juan Flights

The cheapest times to fly from Philadelphia to San Juan

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Philadelphia to San Juan are during the month of . You can find some of the cheapest flights from Philadelphia to San Juan with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Philadelphia to San Juan

Sunday is one of the best days to book for cheap flights from Philadelphia to San Juan: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Philadelphia to San Juan

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Philadelphia to San Juan in 2025. You can also book with separate airlines for your outbound and return journeys, from one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Philadelphia to San Juan flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Philadelphia to San Juan airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Philadelphia Intl. Airport (PHL) to Fernando Luis Ribas Dominicci Airport (SIG) cost?
Snag a cheap one-way flight or cheap return flight from Philadelphia Intl. Airport (PHL) to Fernando Luis Ribas Dominicci Airport (SIG) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Philadelphia Intl. Airport (PHL) to Fernando Luis Ribas Dominicci Airport (SIG)?
The cheapest month to fly from PHL to SIG is , when there's less demand. Off-peak season is generally when better flight deals are available between these airports.
What is the cheapest airline that flies from Philadelphia Intl. Airport (PHL) to Fernando Luis Ribas Dominicci Airport (SIG)?
Use the filters on Expedia to compare airlines and find the cheapest carrier that'll fly you from PHL to SIG. Then, sort your results by "Price (lowest to highest)" to snag a great deal.
How many flights per day from Philadelphia Intl. Airport (PHL) to Fernando Luis Ribas Dominicci Airport (SIG)?
You'll need to catch a flight with a layover if you're traveling from Philadelphia Intl. Airport (PHL) to Fernando Luis Ribas Dominicci Airport (SIG). There are no daily direct flights on this route. However, simply filter your search to include one or two stops to find the best option for your trip.
What day of the week has the most flights from PHL to SIG?
Generally you'll find the most flight options available on a Friday. Tuesdays tend to be the quietest.* However, this can change based on the season, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Philadelphia Intl. Airport (PHL) to Fernando Luis Ribas Dominicci Airport (SIG)?
To arrive at Fernando Luis Ribas Dominicci Airport (SIG) on schedule, opt for a flight that leaves from Philadelphia Intl. Airport (PHL) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Philadelphia Intl. Airport (PHL) to Fernando Luis Ribas Dominicci Airport (SIG) last-minute?
Waiting until right before your break to book a flight from PHL to SIG often results in higher prices. While you may find some last-minute offers, they're not always guaranteed. Keep your travel plans flexible to maximize your chances of landing a bargain.
Can I cancel or change the date of my flight from Philadelphia Intl. Airport (PHL) to Fernando Luis Ribas Dominicci Airport (SIG)?
If you booked your PHL to SIG flight in the last 24 hours, you may be able to modify or cancel it without fees. Depending on the airline and the ticket type you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal for further details.

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*Available to One Key members.