Arrived at IST on BA 165 on 27 Dec 05 - approximately 4:30 pm local (flight around an hour late.)
No visa/passport control; follow "transit" signs to escalator where man looks at returning BPs (issued by BA at LHR that morning with only one raised eyebrow). Ascend escalator to departures hall. Make hurried duty-free purchases or visit small BA lounge-with-recorded-birdsong.
Returning flight called, make way to gate where extremely sensitive metal detector beeps for most anything, carry-ons x-rayed, on to plane.
Total elapsed time, 45 min.
Depart BA 162 ca. 5:30 pm.
UK passport lady did not notice previous evening's entry stamp (TLV-LHR.)
Wordy trip report
here.