Flight Suvarnabhumi Airport departs from Bangkok Suvarnabhumi Airport at 10:40 and arrives at Guangzhou Guangzhou Baiyun International Airport at 14:30.
The flighttime is about 2h 50m. The distance travelled ("as the bird flies"): 1426 Km. So the average speed is roughly 503 Km.
There is an 1 hour time difference between Bangkok and Guangzhou
The best day to arrive at Bangkok is Tuesday and it would be best to avoid Saturday, as prices are on average 93.91% higher than on Tuesday. (Average prices, based on 2028556 datapoints.)
We have a lot more statistics for flights TG 668 and between Bangkok and Guangzhou.
USD