Flight Narita International Airport departs from Tokyo Narita International Airport at 16:05 and arrives at Chitose New Chitose Airport at 18:00.
The flighttime is about 1h 55m. The distance travelled ("as the bird flies"): 623 Km. So the average speed is roughly 325 Km.
The best day to arrive at Tokyo is Wednesday and it would be best to avoid Saturday, as prices are on average 412.6% higher than on Wednesday. (Average prices, based on 1193422 datapoints.)
We have a lot more statistics for flights MM 573 and between Tokyo and Chitose.