LAX → SYD
15 h 15 min
Estimated gate-to-gate scheduled time. Initial heading 241° (WSW).
Leave Los Angeles Sat 7 Nov, 10:00 local → arrive Sydney Sun 8 Nov, 20:15 local +1 day.
Route · Trans-Pacific
Los Angeles International Airport (United States) and Sydney Kingsford Smith International Airport (Australia): great-circle distance, estimated scheduled flight time each way, time difference and jet lag.
15 h 15 min
Estimated gate-to-gate scheduled time. Initial heading 241° (WSW).
Leave Los Angeles Sat 7 Nov, 10:00 local → arrive Sydney Sun 8 Nov, 20:15 local +1 day.
14 h 15 min
Estimated gate-to-gate scheduled time. Initial heading 61° (ENE).
Leave Sydney Sat 7 Nov, 10:00 local → arrive Los Angeles Sat 7 Nov, 05:15 local.
SYD-bound flights are the slower direction by about 60 minutes in our estimate: the route runs mostly east–west through latitudes where the prevailing westerly winds at cruise height are strong, so heading east rides a tailwind and heading west fights a headwind. How we estimate it.
| Great-circle distance | 12,061 km · 7,494 mi · 6,512 nmi |
|---|---|
| Initial heading | 241° (WSW) from LAX; 61° (ENE) from SYD |
| Farthest from the equator | 33.9°S |
| Crosses | the equator and the 180th meridian (International Date Line area) |
| Share of the longest possible trip | 60% of the 20,015 km to the far side of the Earth |
| LAX | America/Los_Angeles — UTC−7 now; UTC−8 standard time, UTC−7 during daylight saving time |
|---|---|
| SYD | Australia/Sydney — UTC+11 now; UTC+10 standard time, UTC+11 during daylight saving time |
| Difference | Sydney is 18 hours ahead of Los Angeles today; +19 h in January and +17 h in July because daylight saving time starts and ends on different dates (or not at all). |
Jet lag, flying LAX → SYD. The clock change is 18 hours, but to your body that is a shift of 6 hours the other way. Your body clock has to move 6 hours later, like a westward trip. A common rule of thumb is that the body clock adjusts by roughly one time zone a day, so expect up to about 6 days to fully adjust. Shifting later (as here) is usually the easier direction; evening daylight at the destination helps. Flying the other way, the shift is reversed.
General information, not medical advice.
Need a different pair? The flight-time calculator works for any two of 3,245 airports. Not covered: which airlines fly this route, schedules, fares and live status — that data is proprietary and we don’t guess it.
Photos on airport pages are credited there. Estimates are rounded to 5 minutes; typical error about 13 minutes (validation).