$318 Cheap United flights Philadelphia (PHL) to San Juan (SJU)

View $318 flight on Wed, Feb 18, 2026Opens in a new window

$318 Cheap United flights Philadelphia (PHL) to San Juan (SJU)

Prices were available within the past 7 days and start at $318 for one-way flights and $395 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sat, Feb 21 - Sat, Feb 28
PHL
Philadelphia
SJU
San Juan
$395 Roundtrip, found 5 days ago
$395
Roundtrip
found 5 days ago
Select United flight, departing Sat, Feb 21 from Philadelphia to San Juan, returning Sat, Feb 28, priced at $395 found 5 days ago

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

February is typically the cheapest month to fly

From $117 - $201 per traveler.

Alternative airports near San Juan

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Luis Munoz Marin Intl. SJU. Cheapest option available. Average driving time to city center is 16 minutes. Flights from $130
SJU
Luis Munoz Marin Intl.
Cheapest
Average driving time to city center16 min
Flights from $130
Flights from Philadelphia (PHL) to San Juan (SJU)
Origin airport
Philadelphia Intl.
Destination airport
Luis Munoz Marin Intl.
Airlines serving
American Airlines, Delta, Frontier Airlines, JetBlue Airways, Southwest Airlines, United
Popular airline
Frontier Airlines
Distance
2528 km
Average flight time
4 hours 53 mins