Year 1999
1. KLIA held the 6th position for overall satisfaction for all categories (based on IATA Global Airport Monitor 2000). 
   
2. KLIA held the 5th position in the 15 to 25 mppa category for leisure passengers (based on IATA Global Airport Monitor 2000). 
   
3. KLIA won the 2nd for the KLIA Marketing Kit in the Informational/Promotional brochure category for the ACI Pacific Excellence in Communication contest.
   
4. Best Organised Event for the 1st Petronas Malaysian Formula One Grand Prix for Sepang International Circuit.