I have never booked an award ticket before so I was wondering what reward price you pay in miles when booking a ticket when the aircraft only has business class and economy class. Do you have to pay the BC award amount on the three class award chart? Or do they charge you for FC? Example, flying on a Qatar from Chicago to Doha, they only have two classes on the aircraft (economy and business). Would I have to use the amount of miles for BC on the American Airlines award chart for BC? Or would that be considered FC award since your are flying the highest level cabin? Does that change if one of the flights is on a 3 class cabin aircraft and you book BC the whole ticket? Is this airline specific?