Find a great deal and save up to 12% by booking at least 45 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Pennsylvania to Singapore within the next two weeks, with the cheapest ticket starting at $785.
Due to multiple factors, expect to potentially pay more when booking in December. For low rates, September can be a great choice for travel to Singapore. Flights to Singapore from Pennsylvania in September are about $808 on average during September, but can be found for as low as $583.