Here is a guideline you could consider to get the cheapest possible Philippine domestic flights for when you travel. First, do a little research. Research for all the possible airlines flying to your destination that have any special promos or discounted rates during the time of your travel. Farecast, an aggregator can provide an analysis of airfare prices based on historical data. It guides for some chances of airfare going up or going down . Of course you should not always trust the prediction of the website as domestic airfare depends on many variables. Do not settle for one result of the domestic airfare from various sources and book the flight you think gives you more value.

You can compare prices manually, listing prices for each website or you can use websites the have fare comparison tools. Numerous sites and services available are Side Step, Kayak and Farechase. These websites do not earn money from these airlines and instead earn from Adsense and affiliate programs. These websites make it so much easier to compare prices because services provided you with the domestic airfare from various airlines.