Is this normal? I have booked flights MEL to SIN return, coming back via SYD on BA. Searching for a return trip result in fees of $1066 for 2. However putting the same flights in as multi-city resulted in a $180 saving. Screenshots below for similar dates and flights. It seems BA wants (i.e. based on Other Carrier Charges) an extra $90 each for putting us on the onward QF flight to MEL. Fortunately we found the cheaper method before booking.
Actually, why are there 2 lots of other carrier charges in both cases, for only 1 leg with another carrier.
Return:
Multi:
Actually, why are there 2 lots of other carrier charges in both cases, for only 1 leg with another carrier.
Return:
Multi: