Flight New Chitose Airport departs from Chitose New Chitose Airport at 11:55 and arrives at Tokyo Narita International Airport at 13:35.
The flighttime is about 1h 40m. The distance travelled ("as the bird flies"): 623 Km. So the average speed is roughly 374 Km.
The best day to arrive at Chitose is Thursday and it would be best to avoid Monday, as prices are on average 48.91% higher than on Thursday. (Average prices, based on 572755 datapoints.)
We have a lot more statistics for flights JL 508 and between Chitose and Tokyo.