The flight from Seoul (ICN) to San Francisco (SFO) takes about 9h 30m nonstop on a widebody airliner, covering 5,645 miles (9,085 km).
San Francisco is 16 hours behind Seoul. You cross 16 time zones heading west. Westbound trips like this one are usually a little easier to adjust to, so plan for a day or two of jet lag.
We may earn a commission if you book through these links, at no extra cost to you.
New tools, fresh route data, and the odd travel tip. No spam, and you can unsubscribe anytime.