Originally Posted by
pps197
I had not realised there is so much variation in fees. I can't do much with this new-found knowledge though ... or is there variability between airlines / other factors on these fee components ?
The YQ (Carrier Surcharge) is variable and has no connection to the flight length or route.
BA US-UK return flights have a higher YQ than UK-US return flights for example. From some departure points the YQ is low due to local laws, and some carriers set low/no YQ on some/all routes.