Flight Don Mueang International Airport departs from Bangkok Don Mueang International Airport at 19:15 and arrives at Phuket Phuket International Airport at 20:40.
The flighttime is about 1h 25m. The distance travelled ("as the bird flies"): 276 Km. So the average speed is roughly 195 Km.
The best day to arrive at Bangkok is Tuesday and it would be best to avoid Saturday, as prices are on average 62.6% higher than on Tuesday. (Average prices, based on 35142287 datapoints.)
We have a lot more statistics for flights DD 530 and between Bangkok and Phuket.