Flight Hat Yai International Airport departs from Hat Yai Hat Yai International Airport at 08:55 and arrives at Bangkok Suvarnabhumi Airport at 10:15.
The flighttime is about 1h 20m. The distance travelled ("as the bird flies"): 143 Km. So the average speed is roughly 107 Km.
The best day to arrive at Hat Yai is Thursday and it would be best to avoid Friday, as prices are on average 548.25% higher than on Thursday. (Average prices, based on 286670 datapoints.)
We have a lot more statistics for flights WE 270 and between Hat Yai and Bangkok.