Originally Posted by
sbm12
Looking at the list of fares from KVS, it seems that your infant purchased a Z fare (5,430 * 10% = 543, which is what you say you paid). Did your infant get to sit on your lap in BF??
That's my guess. Most American-based airlines charge lap infants 10% of the fare for the cabin in which the parent sits; if the parent upgrades, then the lap infant pays 10% of the applicable premium cabin fare. That's how it works at AA, and I'm guessing it works that way at CO.
In any event, fuel surcharges are not discounted and US government taxes/fees/etc that are per capita are not discounted either.