Singapore Airlines currently operates the A350-900 (long-haul) to various destinations, and soon-to-be-launched A350-900 (ultra long-haul) for its non-stop services to North America.
With the B787-10 slowly replacing the A330-300 on regional routes, Singapore Airlines will be introducing the A350-900 (medium-haul) aircraft to complement the B787-10 on these regional routes. Starting from 17 Dec 2018, the airline will deploy the A350-900 (medium-haul) aircraft between Singapore and Adelaide, subject to regulatory approval.
Similar to the B787-10, the A350-900 (medium-haul) will only have two cabin classes. It will be fitted with 40 Business Class seats in a 1-2-1 configuration, featuring the airline’s latest regional Business Class product, and 263 seats in Economy Class in a 3-3-3 configuration.
The aircraft will also feature the latest Thales AVANT inflight entertainment system with a new user interface designed to further enhance the IFE experience.
According to AusBT, Singapore Airlines will also be deploying the new A350-900 (medium-haul) aircraft to Brisbane from 2019. The dates have not yet been released, and the airline has not stated which of the existing flights will be replaced with the new aircraft.
More information can be found here.