Originally Posted by Gardyloo

Unfortunately, there's no definitive way to know how much the combined fees/surcharges will be on a given ticket, but the sense among many of us is that any RTW ticket issued by BA will carry a higher combined fee total - principally what used to be called "fuel" surcharges (but aren't any more since BA got sued in US federal court over it) compared with comparable tickets issued by other carriers, notably CX and AA.