Question : Do travelers from Jakarta typically stay in Auckland for very long?
Answer : Of course you're not most people, but if you were, you'd stay roughly 18 days.
Question : If your plans are flexible, have you considered changing your departure day?
Answer : For the month of February, the cheapest day to fly is Thursday. Having flexibility in your travel plans means you can save, so be sure to plan ahead when possible.
Question : Are prices changing frequently for this route?
Answer : Prices for CGK to AKL do change much more than most routes. Prices tend to be lower the further out you book.