Flight International Airport departs from San Francisco International Airport at 11:40 and arrives at Tokyo Narita International Airport at 16:00.
The flighttime is about 12h 20m. The distance travelled ("as the bird flies"): 10813 Km. So the average speed is roughly 877 Km.
There is an 16 hour time difference between San Francisco and Tokyo
The best day to arrive at San Francisco is Sunday and it would be best to avoid Wednesday, as prices are on average 1376.1% higher than on Sunday. (Average prices, based on 29154 datapoints.)
We have a lot more statistics for flights JL 57 and between San Francisco and Tokyo.