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Time difference: Seoul to San Francisco
ICN (Incheon International Airport) → SFO (San Francisco International Airport)
-16h
San Francisco is behind
11d
est. jet-lag recovery, westbound
Reading the clocks
When it's noon in Seoul, it's 8:00 PM in San Francisco. Good for planning calls home or coordinating with people on the other end.
Jet lag outlook
Significant jet lagCrossing 16 time zones westbound — plan roughly 11 days to feel fully adjusted. Shifting your sleep schedule 3 days before departure helps.
Frequently asked questions
What is the time difference between Seoul and San Francisco?
San Francisco is 16 hours behind Seoul.
How bad will my jet lag be?
Crossing 16 time zones westbound typically takes 11 days to fully adjust to. Eastbound trips (traveling against your body clock) tend to feel worse than the same distance westbound.
What is the flight time from ICN to SFO?
The nonstop flight distance is 5,645 miles. See the full distance and flight-time breakdown for exact timing.
What's the best way to book around jet lag?
Overnight eastbound flights that land in the morning let you push through to local bedtime and adjust faster. Call CheapoTrav — our agents know which schedules on this route land at the best local time, plus unpublished phone-only fares.