AirAsia X Berhad (MYX: ) (previously known as FlyAsianXpress Sdn. Bhd.), operating as AirAsia X, is a long-haul budget airline based in Malaysia, and a sister company of AirAsia. It commenced operations on 2 November 2007 with its first service flown from Kuala Lumpur International Airport, Malaysia, to Gold Coast Airport in Australia. AirAsia X flies to destinations within Asia and Australia. The airline operates a fleet of 31 aircraft and has placed orders for 76 more.

AirAsia X is the medium and long-haul operation of the brand AirAsia, which is Asia's largest low-cost carrier. The franchise is able to keep costs down by using a common ticketing system, aircraft livery, employee uniforms, and management style.

On 17 May 2007, Tony Fernandes announced plans to commence flights from Malaysia to Australia. Fernandes said he would be avoiding Sydney Airport due to its high fees. Instead the airline would concentrate on cheaper alternatives such as Melbourne's Avalon Airport, Williamtown Airport in Newcastle, and Adelaide Airport. Sustained fares were predicted to be around MYR 800 (A$285) for a return fare, plus taxes. Interest was also expressed in using Gold Coast Airport as another Australian destination.

Several major developments were announced on 10 August 2007. AirAsia X announced its first route from Kuala Lumpur to the Gold Coast. One way fares for this route have been touted to begin at MYR 50 (A$17) excluding taxes and charges, with average return prices to be approximately MYR1,800 (A$598), inclusive of taxes and charges.

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