Flight Changi Airport departs from Singapore Changi Airport at 14:45 and arrives at Seoul Gimpo International Airport at 22:20.
The flighttime is about 6h 35m. The distance travelled ("as the bird flies"): 2961 Km. So the average speed is roughly 450 Km.
There is an 1 hour time difference between Singapore and Seoul
The best day to arrive at Singapore is Sunday and it would be best to avoid Saturday, as prices are on average 165.68% higher than on Sunday. (Average prices, based on 402122 datapoints.)
We have a lot more statistics for flights SQ 606 and between Singapore and Seoul.
THB
