Flight Tianjin Binhai International Airport departs from Tianjin Tianjin Binhai International Airport at 09:00 and arrives at Seoul Incheon International Airport at 11:45.
The flighttime is about 1h 45m. The distance travelled ("as the bird flies"): 1017 Km. So the average speed is roughly 581 Km.
There is an 1 hour time difference between Tianjin and Seoul