Saigon (believed to be Tan Son Nhut)
Definitely. VP978 and VP962 were based at Tan Son Nhut. See this link:
207 Squadron RAF Association - Devon DH Devon VP962 in Vietnam
The blast-proof shelters are still there, some with holes in the roof from the NVA attack on the airfield, which was 37 years ago this week! We have a four-day long-weekend here to mark the end of the war.
The article points out that one other Devon was shared between the Air Attaches in Bangkok (
Don Muang) and Jakarta (Halim).