Originally Posted by
blind pew
BEA did fly Sofia Bucharest which was a 3 leg trip on Trident 1s.
LHR-ZAG-BEG was another Eastern Europe dog-leg service, albeit that it stopped at Zagreb both outbound and inbound, whereas the above went LHR-SOF-BUH-LHR. Other Iron curtain routes included WAW, BUD, PRG, etc.