Flight New Chitose Airport departs from Chitose New Chitose Airport at 09:45 and arrives at Tokyo Narita International Airport at 11:25.
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 Saturday and it would be best to avoid Thursday, as prices are on average 123.78% higher than on Saturday. (Average prices, based on 573214 datapoints.)
We have a lot more statistics for flights JL 504 and between Chitose and Tokyo.