The purpose of this study is to identify the types of check-in technology and the effectiveness of the implementation at Kuala Lumpur International Airport (KLIA). A set of questionnaires was used to collect data and 100 respondents participated in the survey. The survey instrument was found reliable based on the result of the reliability test during the pilot study and full-scale survey with the Cronbach’s alpha value 0.775 and 0.809 respectively. The results show that 87% of the respondents had used the advanced check-in technology and they were satisfied with the system since it helps to skip the long lines, check-in in just a few minutes, can be done anywhere as long as there is internet access. 68% of the respondents agreed that the check-in method that had caused them to take the longest time is the counter check-in method. Overall, the majority of the respondents agreed that the current advanced check-in technology at KLIA able to provide a smooth check-in movement. However, some customers still do not know how to use it and unaware of the existence of the advanced check-in technology. Thus, more awareness campaigns, advertisements and knowledge sharing should be aggressively done. The implementation of a single-token biometric system also seems to be a good idea. This system will help to reduce the check-in time to another level and paperless whereby the passengers will no longer need to present a passport or a boarding pass. This system is suitable to be implemented for future use due to the expected rising numbers of customers in KLIA.