Singapore Airlines check-in opens 48 hours before departure and closes 90 minutes before the flight. Passengers can check in online through the website or mobile app, allowing seat selection, meal choices, and boarding pass retrieval. At the airport, self-service kiosks are available starting 24 hours before departure for printing boarding passes and baggage tags. Check-in counters generally open 3 hours before the flight and close 40 to 60 minutes prior, depending on the airport. At Singapore Changi Airport, early check-in is available at Jewel and Terminal 2 from 3 to 24 hours before departure. Boarding gates close 10 to 15 minutes before departure. Singapore Airlines recommends arriving at the airport 2 to 3 hours in advance.