Swiss International Airlines provides a flexible cancellation policy so that the passenger can easily cancel the flight ticket and get a refund amount. According to the Swiss International Airlines Cancellation Policy 1-800-364-9405, travellers are eligible to cancel their booking flight ticket up to 3 hours before the scheduled departure of the flight time, but they have to pay cancellation charges. Contact Swiss Air Customer Service 1-800-364-9405 for more details and Swiss Air Live Agents are there to help you 24*7.