Vietnam Airlines will move its London-bound services from Gatwick to Heathrow this summer.
The national carrier operates two twice-weekly flights to the UK capital, one from Hanoi and the other from Ho Chi Minh, with a B777-200ER.
From March 30, both routes will move to London Heathrow, reports airlineroute.net.
The airline still plans to roster a B787 Dreamliner onto the services from July 1.
Vietnam Airlines launched the first direct, nonstop flights between London and Hanoi and Ho Chi Minh City in 2011 (see news, December 2011).