How can I change or cancel my flight once I have already bought the ticket? March 14, 2022 09:56 Updated Please contact your airline. A good tip: Many airlines offer still good terms if you postpone your flight to a later date. Related articles How can I find out about the status of my flight? On which side of the Airport are the check-in counters? What should I bear in mind on entering France? Can I get to the Swiss side of the airport from the French side? Can I get to the French side of the airport from the Swiss side?