Cheap flights from Seoul to San Francisco
Cheapest current fares: $332 in September 2026, 9,086 km direct flight in ~10h 41m.
Cheapest month-by-month fares
Lowest available fare per calendar month from Seoul (ICN) to San Francisco (SFO). Refreshed daily.
Seoul (ICN) → San Francisco (SFO)
- September 2026 $332
- October 2026 $347
- December 2026 $348
- August 2026 $511
- July 2026 $834
Frequently asked questions
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What is the cheapest month to fly from Seoul to San Francisco?
Based on current 6-month forward fare data, September 2026 is the cheapest month to fly from Seoul (ICN) to San Francisco (SFO), with fares starting from $332.
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What is the lowest current fare from ICN to SFO?
The lowest currently-listed fare from Seoul (ICN) to San Francisco (SFO) is $332 on 2026-09-30.
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How long is the flight from Seoul to San Francisco?
Direct flights from ICN to SFO cover approximately 9,086 km (5,646 miles), with an estimated flight time of 10h 41m. Operating airlines: AI, KE, OZ, UA, YP.
Related guides for this route
Sibling pages — full route detail, airport overviews, visa context, per-airline routes.