Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Palawan to Japan as you normally would.
PPS stands for Puerto Princesa Airport, while KIX stands for Osaka Kansai Intl Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry. This flight route has multiple associated airports, so we think it might be helpful to learn the name and codes of them as well. They are Fukuoka Airport (FUK), Tokyo Narita Airport (NRT), Sapporo Chitose Airport (CTS), Tokyo Haneda Airport (HND), Okinawa Naha Airport (OKA).