Hello! i have done some routes from EGLL, but the one that I love is up to Inverness (EGPE/EGPH? can’t remember). it’s especially nice in the evening when the sun is setting as the mountains make for a very scenic approach. I usually do this in a british airways a320/319.
A route from EGLL to North America… even though i think all routes to North America are great as you get to cross the Atlantic Ocean (and fly over Greenland in some cases!), i love the EGLL to KSFO (San Francisco) in the British Airways a380 (i think). if you’re looking for a more traditional route, i’d recommend EGLL to KJFK in the British Airways 747-400, as this route is VERY old and extremely well known. Also, it was once flown by the Concorde in 3.5 hours! If you choose KSFO, let me know, because if i’m free and have a subscription at the time I’d love to join you! :)