Originally Posted by
Kacee
Exactly. The best example is the occasional zero dollar fares, where UA makes all its revenue from the YQ.
By adjusting YQ, UA can adjust its fare prices without having to republish them.
IIRC fuel surcharges were implemented back in the '70s during a period of particularly volatile fuel prices for the reason cited. After prices stabilized, it was retained as the airlines liked that they weren't paying TA commissions on the fuel surcharges. Now I think it's just a play to minimize the advertised price in certain markets.