Cheap flights from Philadelphia to San Juan from $74

If you aren’t able to travel to San Juan Luis Munoz Marin Intl Airport during the month of October, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $237.

On average, the least expensive day to fly to San Juan Luis Munoz Marin Intl Airport from Philadelphia is on a Monday. momondo users have found tickets for Monday departures for as low as $297. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Saturday is the most expensive day to depart from Philadelphia because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $352.

The cheapest time of day to fly to San Juan Luis Munoz Marin Intl Airport is at noon when flights can be purchased for as low as $274. Flights in the afternoon are often more expensive with an average ticket price of $367.

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

You are more likely to see cheaper flights to San Juan Luis Munoz Marin Intl Airport from Philadelphia when booking weeks ahead of your departure date. In general, you can expect to find flights to San Juan Luis Munoz Marin Intl Airport for around $306 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Juan Luis Munoz Marin Intl Airport from Philadelphia for as low as $290 on momondo.

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

Frontier is the most popular carrier operating from Philadelphia to San Juan Luis Munoz Marin Intl

Frontier, JetBlue and United Airlines are the top three most popular airlines that fly to San Juan Luis Munoz Marin Intl Airport from Philadelphia according to our data. Frontier is the first choice among our users, with 42% of people opting to fly with this airline when traveling to San Juan Luis Munoz Marin Intl Airport. Keep in mind that there are 6 different airlines that fly to San Juan Luis Munoz Marin Intl Airport on a routine basis, so you have a few additional options to choose from.

Historically, on average around 29% of flights between Philadelphia and San Juan 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 in the evening 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 23% of their flights experiencing any sort of delay.

Orlando (MCO) was the most common stop: 80% of momondo users choosing 1-stop flights on this route connected there.

Flights via Orlando (MCO) offer the lowest average round-trip price of $419.

Flights connecting via Atlanta (ATL) have the shortest average one-way travel time: 6h 45m.

Atlanta (ATL) has the shortest average layover time for this route: 0h 53m.

As of November 2026, 7 flights take off from Philadelphia and land in San Juan Luis Munoz Marin Intl Airport each day. The most common flight departure time for this route is 6:00PM, with 50% of daily flights taking off at noon.

The number of flights available between Philadelphia and San Juan Luis Munoz Marin Intl Airport is 51 per week as of November 2026. The most frequent departure day is Mon, with 20% of weekly flights leaving on this day.