I have 2 economy paid tickets from JFK to TLV on OCT 13 I want to upgrade to business class with points if possible, can someone let me know which class my current ticket has to be I should be able to upgrade and what the process to upgrade?
"For all other International markets, Mileage Upgrade Awards on Delta-marketed and operated flights may be used to upgrade on published Main Cabin fares booked in Y, B, M, S, H, Q, or K class."