Do you realize it's $115 LGW and $140 LHR each time you turn around plus her same fees? You get flatbeds if avialable for your DOH/ active emp DL status etc. Loads have been monstrous. What's your daughter's age? Can she fly unaccompanied minor? It's just OAL's (otehr airline) that can't upgrade. DL is very good at providing employees with great privileges. You can have her taken care of by crew members( and they do it well on overseas flts) and your sister can arrange to meet her at the arrivals area. She can also go with her to the gate with pre-approval as UM.