USA Travel expense reimbursements when Frequent Travel rewards are used

[Corporate_Accountant]

My question concerns travel expense reimbursements when Frequent Travel rewards are used. If an employee uses a benefit they’ve earned which has a dollar value and that amount comes off the amount of their airline ticket for work travel; is it your companies policy to reimburse the employee for the amount they’ve actually paid plus that amount of the voucher applied to the ticket? OR Does your company only reimburse the amount the employee actually paid after the voucher was applied?