✈ ICN → SFO
11H 34M FROM SEOUL TO SAN FRANCISCO. THIS IS A LIFESTYLE NOW.
Flight from Seoul to San Francisco
From Incheon (ICN), South Korea Asia → SFO (SFO), USA North America
How long is the flight from Seoul to San Francisco?
A nonstop flight from Seoul (ICN) to San Francisco (SFO) 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
Seoul timezone
UTC+9
Asia/Seoul
San Francisco timezone
UTC-7
America/Los_Angeles
Time difference
-16h
16 hours behind
Jet lag (rough)
~11.2d
Westward — easier
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.