Yes. Your travel voucher can be redeemed when booking your flights on qatariarways.com, as long as the voucher’s value is less than the value of the ticket. The voucher value will be deducted from the total amount to be paid.
In the future, you will be able to also redeem your voucher against any fees charged when making changes to existing bookings. You will also be able to use it for bookings where the voucher’s value is higher than the price of the ticket.
For further enquiries contact our local offices. Contact details can be found in the following link https://www.qatarairways.com/en/help.html