From the same source, OAG, the United-Kingdom based air travel intelligence company, also provides its monthly report on On-Time Performance for airports' category.
As mentioned here, earlier, the indicators are the same in which the OTP is measured by departures and arrivals that take place strictly less than 15 minutes after scheduled departure/arrival time, including cancellations.
Extracting only airports with more than 4,000 flights, herewith are the full details on the Southeast Asian's OTP performance rate:
By comparing this data to the previous month as attached down here, would you be able to spot the progress and positive developments out of it? Could you spot and tell us more?
Source : OAG