I once flew an AC A319 on YUL-MAN, as well as a Cessna Citation X from YHU-INN, on FS2004. I departed with a full fuel load to make sure I would make it across, the A319 had approx. 30% of fuel left when I arrived in Manchester and the Citation X 8%.
Yep- I've taken a BBJ from JFK-STN, a Jetstar II from IAD-SNN, and a 757 from DUB-YHZ. The only aircraft I've taken across the Pacific have been widebodies- namely the POSKY 747s and A340s. Now that I think of it, I have yet to take a widebody across the pond in FS9... maybe something to do over the weekend