The carrier operated repatriation flights last year, and secured slots at Heathrow earlier this year with a view to operating a regular service to and from Hanoi and Ho Chi Minh City.
Late last month, Bamboo flight QH9051 – the airline’s first non-repatriation flight to London – arrived at Heathrow.
Bamboo is hopeful of establishing a regular direct service by the end of the year, pending government approval.
An initial six-times-weekly service could then extend to a daily service next year "according to market demand", the carrier confirmed at an event in Edinburgh at the weekend ahead of Cop26.
