Cheap flights from Philadelphia to San Juan

View AU$369 flight on Fri, 1 May 2026Opens in a new window

Popular airlines from Philadelphia to San Juan

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Cheap Flights from Philadelphia (ILG) to San Juan (SJU)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

JetBlue Airways
Mon, 11 Aug. - Tue, 12 Aug.
PHL
Philadelphia
SJU
San Juan
AU$524 Return, found 3 days ago
AU$524
Return
found 3 days ago
Select JetBlue Airways flight, departing Mon, 11 Aug. from Philadelphia to San Juan, returning Tue, 12 Aug., priced at AU$524 found 3 days ago
JetBlue Airways
Fri, 8 Aug. - Tue, 12 Aug.
PHL
Philadelphia
SJU
San Juan
AU$533 Return, found 3 days ago
AU$533
Return
found 3 days ago
Select JetBlue Airways flight, departing Fri, 8 Aug. from Philadelphia to San Juan, returning Tue, 12 Aug., priced at AU$533 found 3 days ago
JetBlue Airways
Sat, 9 Aug. - Tue, 12 Aug.
PHL
Philadelphia
SJU
San Juan
AU$586 Return, found 3 days ago
AU$586
Return
found 3 days ago
Select JetBlue Airways flight, departing Sat, 9 Aug. from Philadelphia to San Juan, returning Tue, 12 Aug., priced at AU$586 found 3 days ago
American Airlines
Sat, 15 Nov. - Fri, 21 Nov.
PHL
Philadelphia
SJU
San Juan
AU$593 Return, found 4 days ago
AU$593
Return
found 4 days ago
Select American Airlines flight, departing Sat, 15 Nov. from Philadelphia to San Juan, returning Fri, 21 Nov., priced at AU$593 found 4 days ago
United
Sat, 15 Nov. - Fri, 21 Nov.
PHL
Philadelphia
SJU
San Juan
AU$647 Return, found 4 days ago
AU$647
Return
found 4 days ago
Select United flight, departing Sat, 15 Nov. from Philadelphia to San Juan, returning Fri, 21 Nov., priced at AU$647 found 4 days ago
Delta
Sat, 15 Nov. - Fri, 21 Nov.
PHL
Philadelphia
SJU
San Juan
AU$803 Return, found 4 days ago
AU$803
Return
found 4 days ago
Select Delta flight, departing Sat, 15 Nov. from Philadelphia to San Juan, returning Fri, 21 Nov., priced at AU$803 found 4 days ago

Find the cheapest month to fly from Philadelphia (PHL) to San Juan (SJU)

March is typically the cheapest month to fly

From AU$180 - AU$668 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.