✈ SFO → ICN
11H 34M FLIGHT. YOU WILL CRY DURING A ROMCOM. IT'S FINE.
Flight from San Francisco to Seoul
From SFO (SFO), USA North America → Incheon (ICN), South Korea Asia
How long is the flight from San Francisco to Seoul?
A nonstop flight from San Francisco (SFO) to Seoul (ICN) takes about 11 hours 34 minutes, covering a great-circle distance of 5,646 miles (9,086 km). Actual scheduled time varies by airline, routing, and wind — expect ±15 to 30 minutes from this estimate.
Avg flight time
11h 34m
Nonstop, scheduled
Distance
5,646 mi
9,086 km · great-circle
Avg speed
786 km/h
Door-to-door including taxi
Time zones & jet lag
San Francisco timezone
UTC-7
America/Los_Angeles
Seoul timezone
UTC+9
Asia/Seoul
Time difference
+16h
16 hours ahead
Jet lag (rough)
~16d
Eastward — worse
CO₂ footprint per passenger
Economy class, single passenger. Source: DEFRA 2024 averages.
This flight emits roughly 3.6× the CO₂ of an equivalent train trip and 0.9× a car driven alone over the same distance.