Hi All; I'm due to fly DUB - LHR - LAX with BD and UA next Tuesday, and have an economy ticket. I'm just wondering if anybody would know if it is possible to exchange my economy ticket for a premium economy ticket at check in, and if so, how much would this cost. Can anybody do this, or is this just limited to Frequent Flier members. Of course, this is subject to there being seats available on premium economy on the flight in the first place!
Secondly, if anybody has flown United from Dublin through Heathrow previously, do BD assign your boarding pass for connecting UA flights, when you check in at DUB, or is there a requirement to go to the Flight connections centre at LHR in order to obtain your UA bording pass.