Flights from Philippines to Puerto Rico lean towards being more expensive in January. Prices are generally better when you fly from Philippines to Puerto Rico in March, with the cheapest ticket starting at ₱55,468.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Philippines to Puerto Rico as you normally would.
These are just IATA (International Air Transport Association) codes. They are used in aviation to identify and differentiate airports. That’s why a Manila Ninoy Aquino Intl Airport to San Juan Luis Munoz Marin Intl Airport flight would often be abbreviated as a MNL to SJU flight. Aguadilla Borinquen Airport (BQN), Ponce Mercedita Airport (PSE), San Juan Isla Grande Airport (SIG), Vieques Airport (VQS), Culebra Airport (CPX) are some additional IATA codes for airports related to your trip.