Flight Hong Kong International Airport departs from Hong Kong Hong Kong International Airport at 10:45 and arrives at Bangkok Don Mueang International Airport at 12:40.
The flighttime is about 2h 55m. The distance travelled ("as the bird flies"): 1502 Km. So the average speed is roughly 515 Km.
There is an 1 hour time difference between Hong Kong and Bangkok
The best day to arrive at Hong Kong is Friday and it would be best to avoid Wednesday, as prices are on average 110.27% higher than on Friday. (Average prices, based on 396243 datapoints.)
We have a lot more statistics for flights FD 509 and between Hong Kong and Bangkok.
THB