Low-cost airline Vietjet will launch a three-golden-day promotion, which offers millions of promotional tickets priced from only 0 VND within the golden hours 12h-14h, from May 9 to May 11, 2017 at www.vietjetair.com following the exciting "Free summer, Fly for free" campaign and in celebration of the new route from Ha Noi to Singapore and Siem Reap.