Thai Airways Boeing 777 Pushback and Takeoff from Hong Kong | 20 Minutes of Tarmac Action

[@lakes836]

The crew announcement seems to indicate this is a flight bound for Seoul Incheon International Airport, not Bangkok and the flight duration is probably 3hrs 45 mins. May be this is a Bangkok - Seoul flight with a fuel stopover in Hong Kong.

[@in.transit]

Thanks for pointing it out, sorry my bad. I made error in the description.