Flight Juanda International Airport departs from Surabaya Juanda International Airport at 14:00 and arrives at Balikpapan Sultan Aji Muhammad Sulaiman Airport at 16:30.
The flighttime is about 1h 30m. The distance travelled ("as the bird flies"): 540 Km. So the average speed is roughly 360 Km.
There is an 1 hour time difference between Surabaya and Balikpapan