Flight Don Mueang International Airport departs from Bangkok Don Mueang International Airport at 23:45 and arrives at Tokyo Narita International Airport at 08:00.
The flighttime is about 6h 15m. The distance travelled ("as the bird flies"): 4524 Km. So the average speed is roughly 724 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 Friday, as prices are on average 126.49% higher than on Thursday. (Average prices, based on 45782 datapoints.)
We have a lot more statistics for flights AK 600 and between Bangkok and Tokyo.