Air Flight: You are eligible for benefits, up to the Maximum Benefit Amount, when You sustain an Injury during the Trip which results in any of the following losses within 180 days of the date of the Injury causing the Loss: a) while riding solely as a passenger in an aircraft on a regularly scheduled airline flight or regularly scheduled charter flight; b) while riding as a passenger in any land or water conveyance provided at the expense of the air carrier as a substitute for an aircraft covered by this policy; c) while riding as a passenger in a vehicle licensed to carry passengers for hire, but only when going to an airport to board an aircraft on which You are covered by this policy or when leaving an airport after alighting from such an aircraft; or d) while upon airport premises designated for passenger use immediately before boarding or immediately after alighting from an aircraft on which You are covered by this policy.