FlyerTalk Evangelist and Ambassador: The British Airways Club
Join Date: Jun 2008
Location: Somewhere between 0 and 13,000 metres high
Programs: AF/KL Life Plat, BA GGL+GfL, ALL Diam, Hilton Diam, Marriott Gold, blablablah, etc
Posts: 33,194
The bottom line is that HBO changes absolutely nothing to the underlying fare rules. You can have HBO on very restricted or totally flexible fares. Either way, a change to a FRA-LCY flight should be treated just as a change to another FRA-LHR flight (and vice versa)