Cheap flights from Philadelphia to Puerto Rico from $75

If you don’t want to visit Puerto Rico in October, then you should wait until January to fly from Philadelphia, when ticket prices are also cheap, with an average price of $245.

On average, the least expensive day to fly to Puerto Rico from Philadelphia is on a Monday. momondo users have found tickets for Monday departures for as low as $290. However, this price may fluctuate depending on the airline, the season, and holidays. The most expensive day to fly to Puerto Rico is Friday, with ticket prices averaging around $316.

Our most recent data shows that the best time of day to fly to Puerto Rico is at noon. Flights from Philadelphia to Puerto Rico during this time can be as low as $268. In contrast, the most expensive time of day to depart to Puerto Rico is in the afternoon when prices are around $327.

Fly from Philadelphia to San Juan Luis Munoz Marin Intl for the best Philadelphia - Puerto Rico flight prices

You are more likely to see cheaper flights to Puerto Rico from Philadelphia when booking weeks ahead of your departure date. In general, you can expect to find flights to Puerto Rico for around $293 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Puerto Rico from Philadelphia for as low as $272 on momondo.

Frontier, Southwest, and JetBlue are the most popular carriers operating from Philadelphia to Puerto Rico

Frontier, JetBlue and United Airlines are the top three most popular airlines that fly to Puerto Rico from Philadelphia according to our data. Frontier is the first choice among our users, with 44% of people opting to fly with this airline when traveling to Puerto Rico. Keep in mind that there are 8 different airlines that fly to Puerto Rico on a routine basis, so you have a few additional options to choose from.

Historically, on average around 32% of flights between Philadelphia and Puerto Rico have experienced a delay on any given week. The average delay length over the past 12 months has been 144 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights in the evening have, in the past, seen delays more frequently in comparison.

Tuesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

According to our data, Spirit Airlines have had the least number of delays on this route over the last 12 months; with about 29% of their flights experiencing any sort of delay.

As of May 2026, there are 6 flights per day flying from Philadelphia to Puerto Rico. The most common time of day flights depart is 6:00PM, with 45% of flights taking off in the evening.

42 flights are operational weekly from Philadelphia to Puerto Rico as of May 2026. The most popular departure day for this route is Sun, with 21% of flights per week taking off on this day.