I suspect the photos were taken at Cairo. This was a hub for BOAC second only to London, from where services fanned out southwards into Africa and eastwards into Asia. Looking at a 1947 BOAC timetable there are 22 York departures a week, 8 "Lockheeds" (that's what BOAC called them), 6 DC3 and 3 of their own Haltons. Besides these landplanes, BOAC flying boats were landing alongside on the Nile, adding another 14 services per week in all these directions as well. It remained a transfer point for BOAC passengers travelling between Africa and Asia right up to British Airways times in the 1970s. Besides the services from London turning back there, which appear to have spent commonly a couple of days on the turnaround, there were spare aircraft and crews based there as well. Crews typically flew all day through multiple stops, then had several days off.
The LAMS Halton was part of a large fleet of a dozen or more, wholly cargo, based at Stansted, which found much commercial ad-hoc cargo work, to the self-same areas and down to Australia; they were one of the largest such UK operators at the time. A Halton was a loosely-civilianised Handley Page Halifax bomber; can't mention the Halifax without stating that Mr WHBM Senior was a WW2 navigator on them
. The post-war adapted types, as all of them here, were generally the very last production just in mid-1945 before the wartime output was closed down, and had often not seen active service.
Looks like dad is in RAF uniform (no concession to the heat it seems), who would have added much to the movements there. Note the photos are all of civvy types though.
In passing, looking up LAMS just now, I see they employed a European salesman in 1946-7 who travelled to find business for them, engaged as he OWNED HIS OWN SPITFIRE for getting around ! Oh, happy days !