Based on flight volume data, Tokyo Narita is the most popular airport that ZIPAIR uses. San Jose and Los Angeles are the next two most visited by ZIPAIR.
The least expensive round-trip ZIPAIR international flight we could find is flying from Incheon Intl to Tokyo Narita. This trip has 0 stops) and costs just 4,814,467 ₫ per ticket. ZIPAIR has international one-way flights available, but the cheapest is a flight from Tokyo Narita to Incheon Intl for just 1,972,757 ₫. This flight has 0 stops.
ZIPAIR does not have flights from Ho Chi Minh City - you will need to fly out of Bangkok Suvarnabhumi instead. However, you could fly from Ho Chi Minh City with Ethiopian Air or another airline.