Cheap flights from Philadelphia to San Juan from $61

If you aren’t able to travel to San Juan Luis Munoz Marin Intl Airport during the month of October, then flying in May is also cheap. Prices for this month can be found on momondo for an average of $248.

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 $283. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Friday 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 $302.

The cheapest time of day to fly to San Juan Luis Munoz Marin Intl Airport is in the evening when flights can be purchased for as low as $268. Flights in the morning are often more expensive with an average ticket price of $308.

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 $281 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 $250 on momondo.

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

No. A direct flight is the cheapest option for a flight between Philadelphia to San Juan Luis Munoz Marin Intl Airport.

As of February 2026, prices for Philadelphia to San Juan Luis Munoz Marin Intl Airport flights are approximately 2% cheaper when compared to flights at the same time last year.

Spirit Airlines and Frontier are the most popular carriers 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 51% of people opting to fly with this airline when traveling to San Juan Luis Munoz Marin Intl Airport. Keep in mind that there are 8 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 30% 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 147 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.

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 23% of their flights experiencing any sort of delay.

Orlando (MCO) was the most common stop: 50% of momondo users choosing 1-stop flights on this route connected there.

Flights via Orlando (MCO) offer the lowest average round-trip price of $326.

Flights connecting via Boston (BOS) have the shortest average one-way travel time: 6h 15m.

Atlanta (ATL) has the shortest average layover time for this route: 1h 23m.

As of February 2026, 5 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 11:00AM, with 54% of daily flights taking off at noon.

The number of flights available between Philadelphia and San Juan Luis Munoz Marin Intl Airport is 38 per week as of February 2026. The most frequent departure day is Thu, with 24% of weekly flights leaving on this day.