Aviation Singapore Airlines to launch world's longest non-stop flight Updated : April 26, 2018 02:00 PM IST The airline used to fly the gas-guzzling, four-engine A340-500 on the 9,500-mile route. Singapore Airlines is now taking delivery of Airbus' newest wide-body, the A350-900. The A350 has been designed for those long-range flights. Subscribe to Moneycontrol PRO at just Rs.33/- per month for the first year. Use code SUPERPRO. Limited period offer. Available on Web and Android.