Flight International Airport departs from San Francisco International Airport at 22:55 and arrives at Singapore Changi Airport at 06:15.
The flighttime is about -8h 0-820m. The distance travelled ("as the bird flies"): 15083 Km. So the average speed is roughly 0 Km.
There is an 15 hour time difference between San Francisco and Singapore
The best day to arrive at San Francisco is Thursday and it would be best to avoid Sunday, as prices are on average 379.48% higher than on Thursday. (Average prices, based on 25499 datapoints.)
We have a lot more statistics for flights UA1 and between San Francisco and Singapore.
THB
