Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from General Santos to Macau as you normally would.
Located just 7.0 km from the city center, General Santos Intl (GES) is the airport most travelers will use when flying to Macau from General Santos.
These are just IATA (International Air Transport Association) codes. They are used in aviation to identify and differentiate airports. That’s why a General Santos Intl Airport to Macau Airport flight would often be abbreviated as a GES to MFM flight.