Originally Posted by
LeviFlight
I would avoid risk of a connection issue within the US and recommend flying direct TATL from LA. UA is not trust worthy on such matters. The west coast to EU is more restful that breaking up also.
Which in this case would make LAX-LHR the only UA option.
Now LH & LX are certainly nice alternatives. OP might even have a shot at the new 748 on LH 6 months out - an attractive option travelling on a paid C-ticket.