Orbitz is pleased to offer airline tickets on US Airways, which operates a non-stop flight Saturdays from Philadelphia (PHL) to St Lucia, Saint Lucia (UVF), regularly scheduled to depart at 10:15am and arrive at 4:09pm. Usually an Airbus A319 is flown for this route. The average travel time from Philadelphia, PA to St Lucia, Saint Lucia is 4 hours and 54 minutes.