Originally Posted by
cityflyer369
Not a surprise. BKK is a holiday destination ex UK, while people who fly from BKK to the UK are more likely to be on a business trip, roughly speaking.
Not surprising as you say, but why is UK different from the USA, when both could be expected to have similar travel requirements?
On the nested ticket issue, are there airlines whose Ts and Cs forbid this? I know of several BKK to UK fliers that do this entirely due to the higher prices ex BKK.