I am travelling with my family from MAN to SFO via LHR and returning from SEA to MAN via LHR again in the Summer. We have a transfer time of 1h45 on the way there and 1h40 on the way back. As all our flights arrive and depart from Terminal 5, I'm pretty sure we shouldn't miss our connections. What I'm a little apprehensive about is whether or not our baggage will make it! Do you think this enough time? Obviously it depends on a lot of circumstances but just generally?