When you book a flight, you should be told the duration of that particular flight.
There are various flight time calculators online that you can use too.
The approximate flight time is 14 hours, 30 minutes.
Los Angeles, CA (LAX) to Beijing (BJS)Shortest Flight Duration 12 hours 40 minsorSan Francisco, CA (SFO) to Hong Kong (HKG)Shortest Flight Duration 13 hours 51 mins
Hong Kong (HKG) to Jacksonville, FL (JAX)Shortest Flight Duration * 21 hours 5 mins * Via Atlanta Hartsfield-Jackson Intl Apt, Atlanta (ATL) == == Hong Kong (HKG) to Miami, FL (MIA) Shortest Flight Duration * 20 hours 15 mins * Via Los Angeles International Apt, Los Angeles (LAX) == ==
About 11 hours.
Flight:Tokyo (TYO) to Hong Kong (HKG)Flight Duration 4 hours 25 minsDistance:The distance between Tokyo, Japan and Hong Kong, China is 1774 miles (2854 km).
7 hrs 15 mins
Hong Kong (HKG) to Brisbane (BNE)Flight Duration 8 hours 35 mins
The flight time is 14 hours, 30 minutes.
Hong Kong is a city in China. You would have to provide the name of the other city to calculate flight time.
Departure point: Milano Malpensa Airport, MilanDestination point: Hong Kong International Airport, Hong KongEstimated flight duration: 11 hours, 34 minutes
A little less than ten hours.
Departure point: Hong Kong, People's Republic of ChinaDestination point: MalaysiaEstimated flight duration: 3 hours, 0 minutes
Hong Kong (HKG) to Paris (PAR)Shortest Flight Duration 12 hours 50 mins