Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Jakarta to Goa as you normally would.
Great question - CGK to GOI just means Jakarta Soekarno-Hatta Intl Airport to Vasco da Gama Goa Intl Airport. Now you’ll know what these unique codes when you look for flights! 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 Pernem Mopa Intl Airport (GOX).