To save on the cost of your flight from Philadelphia to Singapore, book at least 43 days before your planned departure. Booking around this time can save you about 3% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $799 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $828.
Our data shows that April tends to be the cheapest month to fly to Singapore from Philadelphia. Users have commonly found prices around $784 for the month, but tickets can be as low as $667. Due to multiple factors, prepare for potentially higher prices in December.