Flight Don Mueang International Airport departs from Bangkok Don Mueang International Airport at 02:35 and arrives at Tokyo Narita International Airport at 12:55.The flight has a short stop at Kaohsiung.
The flighttime is about 8h 20m. The distance travelled ("as the bird flies"): 4524 Km. So the average speed is roughly 543 Km.
There is an 2 hour time difference between Bangkok and Tokyo
The best day to arrive at Bangkok is Monday and it would be best to avoid Thursday, as prices are on average 47.75% higher than on Monday. (Average prices, based on 146763 datapoints.)
We have a lot more statistics for flights FD 234 and between Bangkok and Tokyo.