Just check over the internet platform 2019 Songkran Festival flight would be about 500RM per person.
Checked Traveloka, base price 498.87RM (with possible PROMO voucher). Google Apps Here.
Checked official Airasia, base price 498.91RM. Google Apps Here.
Just a reminder if you wanted to book air flight your can use Traveloka to book and input the promo code whenever possible. 🙂