Check the remaining value on your travel coupon. By login into your Air Canada account and going to the "Vouchers" area, you may examine your voucher balance and get this information.
By phoning Air Canada Reservations or visiting the Air Canada website, select the flight or vacation package you want to reserve.
Choose "Voucher" as your payment option throughout the booking procedure.
If prompted, enter your voucher number and PIN. The voucher's value will be applied to your reservation.
You will have to use another method of payment to cover the difference between the price of your reservation and the amount of your coupon.
The difference between the price of your reservation and the value of your gift certificate will be stored for later use.