Have your plan changed at the last moment, and you may need to cancel your existing flight tickets. Don’t worry! By understanding TAP Air Portugal cancellation policy , you can cancel your flight in multiple ways, such as navigating through the official website, contacting the agent, and at the help desk at the airport. However, you can cancel your flight within 24 hours of the initial booking time to receive a full refund in the original form of payment. If you have any queries, simply contact the Tap Air Portugal customer service.