When flying from Cebu to Prince George, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Prince George (YXS), located 6.0 km from the city center, is the airport you fly into when you book flights from Cebu to Prince George.
These are just IATA (International Air Transport Association) codes. They are used in aviation to identify and differentiate airports. That’s why a Cebu City Mactan Intl Airport to Prince George Airport flight would often be abbreviated as a CEB to YXS flight.