Flight Don Mueang International Airport departs from Bangkok Don Mueang International Airport at 06:20 and arrives at Tokyo Narita International Airport at 16:30.The flight has a short stop at Taipei.
The flighttime is about 8h 10m. The distance travelled ("as the bird flies"): 4524 Km. So the average speed is roughly 554 Km.
There is an 2 hour time difference between Bangkok and Tokyo
The best day to arrive at Bangkok is Thursday and it would be best to avoid Sunday, as prices are on average 23.92% higher than on Thursday. (Average prices, based on 47441 datapoints.)
We have a lot more statistics for flights SL 394 and between Bangkok and Tokyo.