For a smooth and stress-free departure, we suggest arriving at Changi Airport at least two hours for short-haul flights and three hours for long-haul flights. This allows sufficient time for check-in, immigration clearance, and security screening, in addition to enjoying the diverse range of attractions, airport eateries, popular outlets, and relaxation facilities available. Arriving early also ensures you can navigate any unforeseen delays with ease, ensuring a more relaxed start to your journey.