This project report is the result of a study to identify methods and estimate benefits associated with improvements to the air traffic flow in and around Bangkok and Kuala Lumpur, between the two cities, and in the neighboring region based on application of ATFM/CDM procedures and systems. The study included stakeholder discussions, site visits, and operational data analysis in order to identify appropriate ATFM/CDM approaches that will improve the efficiency of the focus area for the study.