AirAsia Piso Sale at Midnight! Posted on June 19, 2015April 28, 2016 by Admin AirAsia PISO SALE is coming! It will start at 22 JUN 2015, 00:00 GMT +8. If you are a BIG member, sale starts at June 21 2015, 00:00 GMT +8! You can register at www.airasiabig.com.