airfare The Famous P1SO (Piso) Fare of Cebu Pacific is Back! 07/05/2011 liza 0Comment I’m subscribed to Cebu Pacific’s newsletter and it’s only now that I was able to read their email re. the famous P1SO (Piso) Fare. All seats are of course limited but will be worthy to check out. I’ve never got the piso fare since I learned about it. So goodluck if you could find one!