Flight Don Mueang International Airport departs from Bangkok Don Mueang International Airport at 11:20 and arrives at Hat Yai Hat Yai International Airport at 12:45.
The flighttime is about 1h 25m. The distance travelled ("as the bird flies"): 143 Km. So the average speed is roughly 101 Km.
The best day to arrive at Bangkok is Saturday and it would be best to avoid Monday, as prices are on average 68.91% higher than on Saturday. (Average prices, based on 5724835 datapoints.)
We have a lot more statistics for flights SL 708 and between Bangkok and Hat Yai.
