I'm travelling on a business class RTW UA/Thai/AN ticket soon and note that the fare basis for UA is 'D' class.
FRom the ticketing info, I can use F seats in a 2 class aircraft in the USA.
However, I seem to remember that this has been described as a upgraded Y fare.
Does anyone know if class of service bonuses are applied as if it was J class ie + 125% or 100% as Y class ?