Analysis of information sources in references of the Wikipedia article "Singapore Airlines fleet" in English language version.
The airline has ordered seven tri-jets for operation
The aircraft that would therefore be less needed would be the older aircraft and those will be the 777 classics, the 777-200s. So we are expecting that they will leave the fleet a little earlier, certainly by the end of this financial year. The A330s are on lease, but they too are even by schedule, due to leave the fleet within the next 12 to 14 months and we will not be extending those leases.
On 15 October, we unveil the first new aircraft to join our fleet since 1997 – the ultra long-range Airbus A340-500.