Flight Juanda International Airport departs from Surabaya Juanda International Airport at 07:40 and arrives at Singapore Changi Airport at 10:50.
The flighttime is about 2h 10m. The distance travelled ("as the bird flies"): 1022 Km. So the average speed is roughly 472 Km.
There is an 1 hour time difference between Surabaya and Singapore
The best month to arrive at Surabaya is September and the most expensive month to fly is December. (Average prices, based on 988 datapoints.)
We have a lot more statistics for flights SQ 854 and between Surabaya and Singapore.