Originally Posted by
flymexico2010
I am thinking of a potential situation: what if my flight from IAH to MUC connecting in LHR is oversold?(I mean hear the IAH-LHR). Can UA book me on other LH flights?
If it is a single ticket, easily. If not, don't bet on it.
Originally Posted by
flymexico2010
the most important question: can UA move my LH departure on my second ticket from MUC to a later flight? Can they touch that ticket?
If it is a second, separate ticket then do not expect UA to touch the LH reservation.
This is one area where oneworld is, by far, in the lead. Their policy says that separate reservations on OW carriers which otherwise meet the MCT will be treated as a single ticket and accommodated as such.