Customers who have a City Sightseeing discount code and want to use it on their booking are able to make savings on the overall cost of their booking. At the same time, certain discount codes may offer you the chance to receive an extra day free; this greatly depends on the City Sightseeing voucher code you have chosen. To apply the discount to your offer, select the trip you would like to go on, as well as the relevant dates. Navigate to the checkout, and when prompted, insert your discount code into the promo code box and hit apply. When complete you will see the subtotal reflect the discount.