1. The Free Commercial Zone (FCZ) at KLIA received the MS ISO 9001:2000 Quality Management Systems for the scope of management of FCZ covering issuance of licences and monitoring of the movement of cargo in and out of FCZ.
2. KLIA in the Top 10 Airports in the 2005 World Airport Awards survey organised by Skytrax Research, a British based air travel industry research company.
3. KLIA is second for Best Airport 15-25 million passengers per annum category in the 2004 AETRA Airport Customer Satisfaction Survey.
4. KLIA was voted as second runner-up in the Favourite Asian Airport category in the fifth annual TIME Readers’ Travel Choice Awards.