Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Angeles City to San Juan as you normally would.
For a flight from Angeles City to San Juan, you will be flying from Clark Intl. Angeles City Clark Intl (CRK) is just 5.5 km from the center of the city. Clark Intl is the only Angeles City airport and it handles 0 outbound flights to San Juan per day. 0 airlines have flights to San Juan from Angeles City Clark Intl on a regular basis.