LAX → ICN
13 h
Estimated gate-to-gate scheduled time. Initial heading 314° (NW).
Leave Los Angeles Sat 7 Nov, 10:00 local → arrive Seoul Sun 8 Nov, 16:00 local +1 day.
Route · Trans-Pacific
Los Angeles International Airport (United States) and Incheon International Airport (South Korea): great-circle distance, estimated scheduled flight time each way, time difference and jet lag.
13 h
Estimated gate-to-gate scheduled time. Initial heading 314° (NW).
Leave Los Angeles Sat 7 Nov, 10:00 local → arrive Seoul Sun 8 Nov, 16:00 local +1 day.
11 h 10 min
Estimated gate-to-gate scheduled time. Initial heading 49° (NE).
Leave Seoul Sat 7 Nov, 10:00 local → arrive Los Angeles Sat 7 Nov, 04:10 local.
ICN-bound flights are the slower direction by about 115 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 | 9,625 km · 5,981 mi · 5,197 nmi |
|---|---|
| Initial heading | 314° (NW) from LAX; 49° (NE) from ICN |
| Farthest from the equator | 53.3°N — the path arcs north of both airports |
| Crosses | the 180th meridian (International Date Line area) |
| Share of the longest possible trip | 48% 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 |
|---|---|
| ICN | Asia/Seoul — UTC+9 now; UTC+9 all year (no daylight saving time) |
| Difference | Seoul is 16 hours ahead of Los Angeles today; +17 h in January and +16 h in July because daylight saving time starts and ends on different dates (or not at all). |
Jet lag, flying LAX → ICN. The clock change is 16 hours, but to your body that is a shift of 8 hours the other way. Your body clock has to move 8 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 8 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).