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ICN to SFO: distance & flight time
Seoul (Incheon International Airport) → San Francisco (San Francisco International Airport)
5,645 mi
9,085 km · 4,906 nm
11h 32m
estimated nonstop flight time
-16h
time difference · heading northeast
See live ICN→SFO fares Phone-only fares on this route — call free
Flight time details
5,645 miles nonstop takes roughly 11h 32m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 16-hour time set-back when reading arrival times on your ticket.
The two airports
- ICN — Incheon International Airport · Seoul, South Korea
- SFO — San Francisco International Airport · San Francisco, United States
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
Near ICN
- GMP · Gimpo International Airport20 mi away
- SWU · Suwon Airport34 mi away
- SSN · Seoul Air Base (K-16)36 mi away
- OSN · Osan Air Base41 mi away
Near SFO
- SQL · San Carlos Airport10 mi away
- HAF · Half Moon Bay Airport10 mi away
- OAK · Metropolitan Oakland International Airport11 mi away
- NGZ · Alameda Naval Air Station12 mi away
Frequently asked questions
How far is ICN from SFO?
The flight distance from Seoul (ICN) to San Francisco (SFO) is 5,645 miles (9,085 km, 4,906 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ICN to SFO?
A nonstop flight takes about 11h 32m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
What is the time difference between Seoul and San Francisco?
San Francisco is 16 hours behind Seoul.
What is the cheapest way to fly from ICN to SFO?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ICN–SFO that never appear on search engines, with no booking fees.