Originally Posted by
BillyIdol
I want to buy an economy ticket on United.com and then upgrade (i.e. pay the difference) to a business class ticket.
In the past, I don't remember getting a receipt when I've purchased tickets on United.com and I think that if I get a receipt at the airport, it would be for the business class ticket cost.
Are you buying Y and upgrading for cash (or miles & cash), or just trying to get a C (D,Z) and have the company cover the amount of coach? If the former, the receipt the chicken gives will be for the coach ticket.
If the latter, I think you will incur a change fee if you move a PNR from (nonrefundable) Y to C (yeah...). I have the most conservative, paranoid accounting office on earth, and they have been OK with me printing out a quote from .bomb/orbitz/expedia for the itinerary they would cover for work travel, and turning in a real receipt for a larger amount that accomplished the same thing (and my other goals) and asking for the amount of the allowable quote.