Hello all.
It seems like I have plenty of miles according to the award chart to upgrade to business class. I understand that I need to buy the ticket in Y class to do so. But how do I know how much the ticket price will be while wanting to use my mileage to upgrade? I tried on Delta.com and Y class ticket was over 4900.00...
Has anyone upgraded to Business class on flight 91 and 92 and tell me how much you had to pay?