Flight Changi Airport departs from Singapore Changi Airport at 17:25 and arrives at Surabaya Juanda International Airport at 18:45.
The flighttime is about 2h 20m. The distance travelled ("as the bird flies"): 1022 Km. So the average speed is roughly 438 Km.
There is an 1 hour time difference between Singapore and Surabaya
The best day to arrive at Singapore is Tuesday and it would be best to avoid Friday, as prices are on average 105.73% higher than on Tuesday. (Average prices, based on 9760508 datapoints.)
This graph shows the distribution of prices found in the past years for this flight. (Average prices, based on 415 datapoints.)
We have a lot more statistics for flights TR 266 and between Singapore and Surabaya.