Vietnam Airlines plans to launch a daily Da Nang-Siem Reap service, starting in its summer 2013 schedule.
It will use ATR 72-500 aircraft on the route, says the SkyTeam alliance member.
The airline also confirmed that it has begun codesharing with Israel's flag carrier El Al since November 2012.
Vietnam Airlines has placed its code on El Al-operated Hong Kong-Tel Aviv service, while El Al codeshares on Vietnam Airlines' services from Hong Kong to Hanoi and Ho Chi Minh City, it adds.
Innovata schedules show that Vietnam Airlines will compete with SilkAir on the Da Nang-Siem Reap route.