To San Juan

Cheap Flights from Philadelphia to San Juan

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Philadelphia

RatePunk searches hundreds of travel sites at once for deals on flights to San Juan

Prices updated 24 days ago

486,190 searches this week

171 airlines compared

80%+ AI score for best value

Fares are subject to change and may not be available for all dates. (Data last updated May 29, 2026.)

Today’s best flight deals from Philadelphia to San Juan

Explore current cheapest deals departing from Philadelphia to San Juan

Round trip

Sort by: Cheapest

September 27 - October 4

Cheapest

PHL - San Juan

$204

$172

Round trip

September 8 - October 4

Earliest

PHL - San Juan

$165

$181

Round trip

September 8 - September 27

Earliest

PHL - San Juan

$166

$181

Round trip

October 4 - October 7

Best

PHL - San Juan

$298

$183

Round trip

September 27 - October 7

PHL - San Juan

$260

$184

Round trip

September 17 - October 4

PHL - San Juan

$173

$186

Round trip

September 17 - September 27

PHL - San Juan

$181

$186

Round trip

September 13 - October 4

PHL - San Juan

$169

$186

Round trip

September 13 - September 27

PHL - San Juan

$174

$186

Round trip

September 20 - October 4

PHL - San Juan

$180

$187

Round trip

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Route Intelligence — 486,190 Searches this Week

Insights for flights from Philadelphia to San Juan

Fares for cheap flights from Philadelphia to San Juan typically range from $124–$444, with a median of $236. Right now, fares are above the typical level, with only 5% of recent fares classified as a good price. New deals appear almost daily, suggesting frequent opportunities to find better prices.

If you are looking for the cheapest time to fly from Philadelphia to San Juan, April stands out with a median fare of just $121. Following closely, May offers a median of $152, and June presents a median of $165. These months generally offer more budget-friendly options compared to other times of the year.

When flying from Philadelphia to San Juan, 57.6% of recent fares are for direct flights. This means a meaningful share are non-stop, while the remaining itineraries typically involve 2 connections. Travelers have a good chance of finding direct flights from Philadelphia to San Juan, but connecting options are also common.

A typical journey from Philadelphia to San Juan takes approximately 8h 1m, including connections. This duration accounts for the median flight time across all itineraries, both direct and those with layovers. The overall travel time reflects the distance and the common routing options available for this route.

The distance between Philadelphia and San Juan is 2,543 kilometers. This classifies the route as a medium-haul journey, indicating a flight that is neither extremely short nor exceptionally long. Travelers can expect a substantial flight duration consistent with medium-haul international travel.

How much is a round trip from Philadelphia to San Juan

Regular price: $170 - $302

Prices for flights from Philadelphia to San Juan are currently within the regular range.

The regular price range for this route is $170 to $302. The current lowest deal is $172 with Frontier Airlines, for travel from Sep 27-Oct 4.

now $172

Low $170

High $302

The cheapest time to fly from Philadelphia to San Juan

The cheapest month to fly from Philadelphia to San Juan is April, with a median price of $121. The most expensive month is December, with a median price of $2509. Prices are generally lower from April to November.

April

Cheapest

Flights from $121

December

Most Expensive

Flights from $2,509

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Direct flights from Philadelphia to San Juan

Frontier Airlines

Last-minute flights going from Philadelphia to San Juan

Wed, Jun 17

⌛ Last-Minute

PHL - San Juan

Philadelphia (PHL) - San Juan (SJU)

Frontier Airlines

$336

$276

One-way

Wed, Jun 17

⌛ Last-Minute

PHL - San Juan

Philadelphia (PHL) - San Juan (SJU)

Frontier Airlines

$340

$293

One-way

Wed, Jun 17

⌛ Last-Minute

PHL - San Juan

Philadelphia (PHL) - San Juan (SJU)

Frontier Airlines

$340

$306

One-way

Thu, Jul 2

⌛ Last-Minute

TTN - San Juan

Trenton (TTN) - San Juan (SJU)

Frontier Airlines

$417

$333

One-way

Thu, Jul 2

⌛ Last-Minute

TTN - San Juan

Trenton (TTN) - San Juan (SJU)

Frontier Airlines

$453

$339

One-way

Thu, Jul 2

⌛ Last-Minute

TTN - San Juan

Trenton (TTN) - San Juan (SJU)

Frontier Airlines

$430

$367

One-way

Biggest price drops on these dates for flights from Philadelphia to San Juan

3 nights

Nov 11 - Nov 14

$445 → $273

39%

4 nights

Nov 7 - Nov 11

$444 → $278

37%

2 nights

Nov 10 - Nov 12

$444 → $286

36%

3 nights

Nov 7 - Nov 10

$351 → $214

39%

Popular Airports to fly from Philadelphia to San Juan

Philadelphia - San Juan route insights

💸 Price insights

Recent fares are below the typical level

Recent fares from Philadelphia to San Juan are below the typical level.

📅 Best time to fly

April is historically cheapest at $121

Historically, April is the cheapest month to fly from Philadelphia to San Juan, with a median price of $121.

⏱️ Flight duration

Typically 8h 1m to San Juan

The typical flight duration from Philadelphia to San Juan is 8 hours and 1 minute.

✈️ Airlines & availability

Frontier Airlines offers direct flights

Frontier Airlines offers direct flights from Philadelphia to San Juan.

🏆 Airline highlight

Frontier Airlines: 1 direct deal

Frontier Airlines has 1 direct deal available for this route.

🎯 Booking tip

Deals are frequent for this route

Deals for flights from Philadelphia to San Juan are frequent, with over 1 deal per day.

Philadelphia main airports to depart from

Philadelphia International (PHL)

Cheapest

Philadelphia International Airport is a great option for flights from Philadelphia to San Juan.

📍 ~10 km from city center (reachable by car or train)

💸 Flights from ~$172

San Juan main airports to arrive at

Luis Muñoz Marín International (SJU)

Cheapest

Luis Muñoz Marín International Airport is a primary arrival option for flights to San Juan.

📍 ~12 km from city center (reachable by car)

💸 Flights from ~$172

Fernando Luis Ribas Dominicci (SIG)

Fernando Luis Ribas Dominicci Airport is an alternative for reaching San Juan.

📍 ~2 km from city center (reachable by car)

Airports nearby San Juan used as alternative

Aguadilla Rafael Hernandez (BQN)

Aguadilla Rafael Hernandez is a reliable alternative for travelers heading to the western side of the island.

📍 ~100 km from San Juan (reachable by car)

💸 Flights from ~$336

Mercedita (PSE)

Mercedita serves the southern region with direct flights to major US hubs and offers easier navigation.

📍 ~80 km from San Juan (reachable by car)

💸 Flights from ~$336

Cyril E. King (STT)

Cyril E. King is a major international hub in the US Virgin Islands with extensive US mainland connectivity.

📍 ~120 km from San Juan (reachable by inter-island flight or ferry)

💸 Flights from ~$377

Punta Cana International (PUJ)

Cheapest

Punta Cana International is a massive international hub with global connections, often offering lower transatlantic fares.

📍 ~230 km from San Juan (reachable by international travel)

💸 Flights from ~$308

Henry E. Rohlsen (STX)

Henry E. Rohlsen is an alternative US territory airport with direct links to the US mainland.

📍 ~140 km from San Juan (reachable by additional air travel)

💸 Flights from ~$398

Business & First Class Flight Deals to San Juan

San Juan, United States

43% AI deal score

$2,953

From PHL

Elite

Aug 01

San Juan, United States

43% AI deal score

$4,916

Frequently Asked Questions About Flights to San Juan

Historically, the optimal booking window for flights from Philadelphia to San Juan is typically 14-27 days before departure. During this period, the average price observed was $123. Booking within 0-6 days of departure typically sees an average price of $341, while booking 7-13 days out averages $428. For those planning further ahead, booking 60+ days in advance usually results in an average price of $349.

Across the trailing quarter, a flight from Philadelphia to San Juan is considered a good deal if it is priced at or below $124. The median price for this route in the trailing 90 days was $236. Prices above $444 typically fall into the higher end of the spectrum for this route. By aiming for prices at or below the $124 threshold, travelers can confidently secure a favorable fare.

Historically, April has been the cheapest month to fly from Philadelphia to San Juan, with a median price of $121. May also offers competitive prices, with a median of $152. June, while still relatively affordable, shows a median price of $165. The annual median price for this route is $236, indicating that these months offer significant savings compared to the overall average.

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