Go through your results for flights to Hong Kong in Hong Kong with Netflights. Although Philippine Airlines usually has the best prices, it's best to double check what's available for your travel dates.
Flexible on dates? Conducting your search by month allows you to compare prices to Hong Kong throughout the year. Accommodation prices will also be higher at this time of year.
So, if the flights to Hong Kong don't work for you, you could always try searching for flights to other airports in Hong Kong.
For even more options, check what other airports you could fly to Hong Kong from. You might be able to make a saving by going from a different airport or city.