I heard the promo is supposed to start tomorrow but you can now book P1 fares on Cebu Pacific for both local and international destinations! I just booked a trip to Puerto Princesa for my birthday and Tacloban during my sembreak. The roundtrip tickets, inclusive of taxes and fuel surcharges, were just PHP1967.84 each!
The funny thing is that news spreads fast. And even though they haven't announced it yet, the flights are going fast! A few minutes after I booked my flight, the P1 fare was no longer available for my Puerto Princesa flight. Oh well! Check out http://www.cebupacificair.com.
Many thanks to Renz Ticsay for the info.