Originally Posted by
Mwenenzi
davidvc Welcome to FT
Real taxes / airport charges can vary with transit vs stopover
For example
- the UK
ADP apples on stopover but not a transit (less than 24hrs?)
- Australia has a departure tax, but if you transit that does apply (as you never formally enter Australia so do not formally depart)
Do not confuse real taxes (& airport charges) with carrrier imposed surcharges (=airline profit)
UK APD is quite complicated (the rule book is about 50 pages long) but in essence an international-international transit under 24 hours will not cause APD to be levied.
Fuel and insurance surcharges will appear in the taxes/fees box on the ticket of course.
But yes, the airline surcharges can vary based on stopover and many other factors. Adding together the YQ/YR fees from individual sectors on ITA will not necessarily be a perfect predictor of the total YQ/YR line on a RTW ticket.