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

Condado Beach which includes general coastal views and a coastal town

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

American Airlines
American Airlines
United
United
Southwest Airlines
Southwest Airlines
Delta
Delta
Frontier Airlines
Frontier Airlines
JetBlue Airways
JetBlue Airways
Alaska Airlines
Alaska Airlines

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Frequently asked questions

Is it cheaper to buy a plane ticket from Philadelphia Airport to SIG last minute?

When it’s time to book your flights, it’s better to be prepared. While you may be able to score a last-minute deal on a Philadelphia Airport to Fernando Luis Ribas Dominicci Airport (SIG) flight, fares usually don’t get cheaper as the date of departure nears. Based on flight pricing and demand studies in 2022, we have found that the sweet spot to lock in a domestic flight is between 28 – 35 days in advance. For international flights it’s between three and four months.

What airports do you fly into for San Juan from Philadelphia?

With Fernando Luis Ribas Dominicci Airport (SIG), Luis Munoz Marin Intl. Airport (SJU) and Mercedita Airport (PSE) to pick from, getting from Philadelphia to San Juan is a cinch. The city’s major hub, Fernando Luis Ribas Dominicci Airport (SIG), is approximately 1 mi southeast of the downtown area. Besides ticket costs, consider things like transportation options from the airport and the distance to your hotel before making your decision. Get your San Juan adventure off to a terrific start by discovering San Juan Gate and La Fortaleza.

Can I change the date of my flight from Philadelphia Intl. Airport (PHL) to Fernando Luis Ribas Dominicci Airport?

You can make changes to your Philadelphia Intl. Airport (PHL) to Fernando Luis Ribas Dominicci Airport (SIG) flight by logging in to the Expedia Trips portal. But before you begin, read the conditions in your itinerary to find out what you’re allowed to do and if change fees apply. Some airlines charge a change fee per person, in addition to any difference in fares. But if you booked in the last 24 hours, you may be able to cancel for free and book new flights. You can also stop by our Customer Service portal for more useful advice and to connect with our Virtual Agent.

Travel information

Origin airport	Philadelphia Intl.
Destination airport	Fernando Luis Ribas Dominicci
Distance	1577 mi

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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.

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

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