BOM-FRA-CAI 1 or 2 SWU ugrade certificate(s) ?
HI
I have find differents informations about this on FlyerTalk :
I will fly Lufthansa BOM-FRA-CAI in business (D fare, one ticket) and would like to use a UA Sweet spot Uprgrade certificate. In case of availibility will LH upgrade the 2 segments or only one ?
Thanks
Herve