Swiss International Airlines offers multiple options for check-in, including online check-in, self-service kiosks, and check-in counters. This provides passengers with flexibility and convenience when preparing for their flights. For those who prefer to check in from the comfort of their own home, Swiss International Airlines check in online also available. This option is available 23 hours before the scheduled departure time and closes one hour before departure for European flights, and 90 minutes before departure for intercontinental flights.