A flight from Hong Kong (HKG) to Los Angeles (LAX) typically takes about 13 h 45 min. The return, Los Angeles to Hong Kong, takes about 15 h 40 min. The distance is 11,664 km (7,248 miles) along the great-circle path.
The jet stream, a fast river of air at cruising altitude, blows mostly from west to east. Flying Hong Kong to Los Angeles you ride it, about 13 h 45 min; flying Los Angeles to Hong Kong you fly into it, about 15 h 40 min. It is the same distance either way, which is why the westbound leg is usually the longer one.
Los Angeles is 16 hours behind Hong Kong (standard time; the gap shifts by an hour for part of the year when only one of them is on daylight saving). Leave Hong Kong at 10:00 and you land at about 07:47 Los Angeles time, the same day.
Los Angeles is 16 hours behind, so your body clock has to run later. That is the easier direction: with no plan, expect about 11 days to feel properly adjusted. With a gap this large your body may adapt in either direction, so simply follow local time and light as soon as you land.
For two or three days before, go to bed and get up an hour later each day, and get bright light in the evening. Even a partial shift helps.
Set your watch to Los Angeles time as you board. On a typical morning departure you land around 07:47 Los Angeles time, in daylight: sleep only if it is night in Los Angeles, drink water, go easy on alcohol, and then stay up until local bedtime.
Get outdoor light in the afternoon and evening, and stay up until local bedtime. Keep any nap under 30 minutes, early in the day.
General guidance, not medical advice. If you have a health condition or take medication, ask your doctor before changing your sleep routine.
Range decides what can do this route without a stop. At 11,664 km it is within reach of Boeing 787-9, Airbus A350-900 and Boeing 777-300ER.
| Aircraft | Approx. range | Estimated HKG–LAX |
|---|---|---|
| Airbus A320neo | 6,300 km | needs a stop |
| Boeing 737-800 | 5,400 km | needs a stop |
| Airbus A321LR | 7,400 km | needs a stop |
| Boeing 787-9 | 14,100 km | 12 h 45 min |
| Airbus A350-900 | 15,000 km | 12 h 45 min |
| Boeing 777-300ER | 13,650 km | 12 h 40 min |
Distance is the great-circle distance between Hong Kong and Los Angeles. Time is that distance at about 830 km/h cruise, adjusted for the prevailing jet stream, plus roughly 35 minutes for taxi, climb and descent. It is a typical scheduled-time estimate, not a timetable: airlines publish their own, and daily winds, routing and air traffic can move a long flight by half an hour or more. Reviewed October 2026.
About 13 h 45 min from HKG to LAX. The return flight is about 15 h 40 min.
From Hong Kong to Los Angeles it is typically about 13 h 45 min, covering 11,664 km.
11,664 km (7,248 miles, 6,298 nautical miles) in a straight line.
The jet stream blows west to east, so the eastbound flight is shorter than the westbound one. The distance is identical.
Los Angeles is 16 hours behind Hong Kong in standard time.
At 11,664 km it is within the range of long-haul airliners such as the Boeing 777-300ER, so a non-stop flight is possible; check airline schedules for what is actually operated.
Typically about 11 days with no plan, and less if you shift your sleep and light exposure to local time.
Shift your sleep an hour later for two or three days before you fly, switch to destination time on boarding, stay awake until local bedtime on arrival, and get outdoor light in the afternoon and evening.
London to Tokyo · Paris to Los Angeles · London to New York · San Francisco to Tokyo · London to Los Angeles · Los Angeles to Sydney
Flight time calculator · See which aircraft are flying over you right now