Cheap flights from San Juan to Philadelphia from $109

The cheapest month to fly to Philadelphia from San Juan is in February. Flight prices, which tend to average around $46, are often lower during this time because this is during the off-season. The month of March is another great option to travel to Philadelphia, with average flight prices from San Juan averaging around $66.

The cheapest day to depart from San Juan to Philadelphia is on a Friday. Travelers who choose to depart for Philadelphia on a Friday will often find tickets for as low as $288. On the other hand, Sunday is the most expensive day to depart from San Juan because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $427.

According to our data, the cheapest time of day to fly to Philadelphia is in the evening. momondo users have found flights departing from San Juan to Philadelphia in the evening for as low as $230. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In contrast, the most expensive time of day to depart to Philadelphia is at noon when prices are around $478.

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

You are more likely to see cheaper flights to Philadelphia from San Juan when booking weeks ahead of your departure date. In general, you can expect to find flights to Philadelphia for around $247 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Philadelphia from San Juan for as low as $214 on momondo.

There are 4 cabin classes available to choose from on San Juan to Philadelphia flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Southwest is the most popular carrier operating from San Juan to Philadelphia

Frontier, JetBlue and Delta are the top three most popular airlines that fly to Philadelphia from San Juan according to our data. Frontier is the first choice among our users, with 40% of people opting to fly with this airline when traveling to Philadelphia. Keep in mind that there are 6 different airlines that fly to Philadelphia on a routine basis, so you have a few additional options to choose from.

Historically, on average around 22% of flights between San Juan and Philadelphia have experienced a delay on any given week. The average delay length over the past 12 months has been 145 minutes.

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

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

According to our data, American Airlines have had the least number of delays on this route over the last 12 months; with about 16% of their flights experiencing any sort of delay.

3 flights are operational daily from San Juan to Philadelphia as of June 2026. The most popular departure time for this route is 6:00AM, with 47% of flights per day taking off at noon.

27 flights are operational weekly from San Juan to Philadelphia as of June 2026. The most popular departure day for this route is Mon, with 26% of flights per week taking off on this day.