United Kingdom, July 22 -- Riyadh Air, the new premium international airline based in Saudi Arabia, has firmed up an order for six additional Airbus A350-1000 aircraft, increasing its total firm commitment for the type to 31 aircraft.The agreement forms part of the airline's original commitment for up to 50 A350-1000s announced in 2025. Riyadh Air will become the first airline in Saudi Arabia to operate the A350-1000 and will use the aircraft to support its international growth ambitions and the Kingdom's Vision 2030 objectives. The A350 is the world's most modern widebody aircraft, designed to fly up to 9,700 nautical miles / 18,000 kilometres non-stop, setting new standards for intercontinental travel. The aircraft includes state-of-the-a...