The flight duration from Delhi to Singapore depends on several factors, such as the airline, the route, the weather and the airport congestion. However, the average time for a direct flight is about 5 hours and 40 minutes, covering a distance of 4140 kilometers. If you have a connecting flight, the time may vary depending on the layover duration and location. You can check the flight schedules and availability on various online platforms or contact your travel agent for more information.