Mi)eage • Mileage upgrade is prohibited on certain segments of Itineraries. Please confirm with your ticketing agent. +Accrual Rate Per Class on Korean Air Flights It 200%. P 165%, F 150%, ) 135%, C/D/1 125%, 2 100%, T/W/B/M/S/H/E/KNU 100%, G 80%, WWI 70%, No Accrual A/0/fl 50% Or more discounted tickets (A: