Barnaby From , joined Dec 1969, posts, RR:
Reply 1, posted (15 years 10 months 1 week 6 days 13 hours ago) and read 2200 times:
My guess is that most BA traffic to CDG/ORY, Moscow, TLV, and AMS is online stopover traffic. In other words, most pax on those flights will be coming from other international destinations so it makes sense to keep those flights in T4.
as for the T3 move...my guess is lack of space at T4.