Flight Netaji Subhas Chandra Bose International Airport departs from Kolkata Netaji Subhas Chandra Bose International Airport at 19:40 and arrives at Guangzhou Guangzhou Baiyun International Airport at 01:30.
The flighttime is about 3h 20m. The distance travelled ("as the bird flies"): 2763 Km. So the average speed is roughly 829 Km.
There is an 2.5 hour time difference between Kolkata and Guangzhou