Flight Haikou Meilan International Airport departs from Haikou Haikou Meilan International Airport at 15:50 and arrives at Bangkok Suvarnabhumi Airport at 17:30.
The flighttime is about 2h 40m. The distance travelled ("as the bird flies"): 1094 Km. So the average speed is roughly 410 Km.
There is an 1 hour time difference between Haikou and Bangkok