Originally Posted by
YuropFlyer
My personal opinion (cutting some of my booked travels, by the way..)
UA having to honour 1 F ticket per person on their own metal (if more than one route in F got booked by a single individual, he gets to choose which one he/she likes in F)
UA having to honour all fares touching US soil in Business class (F domestic) -> ie, downgrades from F without "compensation" on international routes, where such routes were booked, bookings in C and Y to be reinstasted (and yes, many Polish people booked in Y

)
Routes which aren't touching US soul are void. (haha to many Germans)
What about cases, in this case, then, where there was MPM overage as a result of deliberately obtaining partner metal.
(I know for the Australia fare, it was possible to book
UA LONCHI
UA CHISIN
QF* operated by EK SINMEL)
Also, in your case, even honouring F on international fare components may require interline with other carriers
i.e. the return of this ticket
QF MELSYD
UA SYDSFO
UA SFOCHI
UA CHILON