Cheap flights from Philadelphia to San Juan from $143 PHL, TTN → SJU

Found recently, and the cheapest we hold

What have prices looked like?

Over 49 days, 24 Sept to 11 Nov, the cheapest return we saw each day was $101 to $154.

At $162, the cheapest return found recently is above that range.

Those were the prices on those days, not today's.

Could nearby dates be cheaper?

No. We hold 6-night return fares on 1 other departure date within 3 days of 8 Feb 2027, and it is not cheaper.

Every date we hold

154 fares on 16 departure dates

Which month looks cheapest?

December 2026 is the cheapest month — from $147.

Found recently, and the cheapest we hold

What have prices looked like?

Over 49 days, 24 Sept to 11 Nov, the cheapest one-way we saw each day was $45 to $73.

At $143, the cheapest one-way found recently is above that range.

Those were the prices on those days, not today's.

Could nearby dates be cheaper?

Yes. Among one-way fares leaving within 3 days of 28 Apr 2027, 1 May 2027 costs $137: $6 less than the cheapest found recently.

American Airlines · Philadelphia International Airport (PHL) → Luis Munoz Marin International Airport (SJU) · 1 stop · found 4 days ago

Open this tripCheck today's price

FareTell may earn a commission when you book through a partner.

Every date we hold

54 fares on 10 departure dates

Which month looks cheapest?

November 2026 is the cheapest month — from $46.

Return

Fares 7 to 13 days before departure were typically 7% lower than 0 to 6 days before departure.

From the cheapest return each day between 24 Sept and 11 Nov (49 days), grouped by how many days ahead the flight left; one adult in economy.

Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.

Prices reflect recent searches — current fares may differ.

One-way

Fares 30 to 59 days before departure were typically 6% lower than 0 to 6 days before departure.

From the cheapest one-way each day between 24 Sept and 11 Nov (49 days), grouped by how many days ahead the flight left; one adult in economy.

Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.

Prices reflect recent searches — current fares may differ.

How much is a return flight from Philadelphia to San Juan?

The cheapest return found recently is $162 with Frontier Airlines, 8 Feb 2027 to 14 Feb 2027, found 2 days ago. The cheapest return we hold, of any age, is $147 with Frontier Airlines, 8 Dec to 12 Dec, found 6 days ago. The cheapest return fare on each of 16 departure dates is usually $211 to $569.

How much is a one-way flight from Philadelphia to San Juan?

The cheapest one-way found recently is $143 with American Airlines, 28 Apr 2027, found 2 days ago. The cheapest one-way we hold, of any age, is $46 with Frontier Airlines, 17 Nov, found 4 days ago. The cheapest one-way fare on each of 10 departure dates is usually $97 to $313.

What is the cheapest month to fly from Philadelphia to San Juan?

December 2026 is the cheapest month for a return, from $147, 8 Dec to 12 Dec, found 6 days ago. November 2026 is the cheapest month for a one-way, from $46, 17 Nov, found 4 days ago.

Every date in December 2026

How far ahead should I book a flight from Philadelphia to San Juan?

In 49 days of prices between 24 Sept and 11 Nov, return fares 7 to 13 days before departure were typically 7% lower than 0 to 6 days before departure. One-way fares 30 to 59 days before departure were typically 6% lower than 0 to 6 days before departure.

Is there a direct flight from Philadelphia to San Juan?

Yes, the cheapest nonstop return found recently is $162 with Frontier Airlines, 8 Feb 2027 to 14 Feb 2027, found 2 days ago. The cheapest nonstop one-way found recently is $221 with jetBlue, 28 Apr 2027, found 2 days ago.

Every nonstop date from Philadelphia to San Juan

How long is the flight from Philadelphia to San Juan?

The cheapest nonstop one-way found recently, with jetBlue on 28 Apr 2027, takes 3 h 45 min from Philadelphia International Airport (PHL) to Luis Munoz Marin International Airport (SJU). The cheapest one-way found recently, with American Airlines on 28 Apr 2027, takes 10 h 21 min with 1 stop.

Which airlines have the cheapest flights from Philadelphia to San Juan?

Between 13 Nov and 7 May 2027, Frontier Airlines has the cheapest return on 14 of the 16 departure dates we hold, and American Airlines on 2. Between 17 Nov and 1 May 2027, Frontier Airlines has the cheapest one-way on 6 of the 10 departure dates we hold, and American Airlines on 4.