Direct (nonstop) flights from Seoul to San Francisco
4 airlines fly nonstop from Incheon International Airport (ICN) to San Francisco International (SFO). It's 5,658 miles (9,106 km), about 10h 40m in the air. Operated by Korean Air, Asiana Airlines, United Airlines and others.
Korean Air
Asiana Airlines
United Airlines
Air Premia
Route data last updated: May 31, 2026
Airlines with non-stop flights
OZ
Asiana Airlines
UA
United Airlines
Alternative Routes
Other ways to fly from Seoul to San Francisco with one stop · direct emits 865 kg CO₂ per passenger
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SFO → ICN: Flights from San Francisco to SeoulOther direct flights from Seoul
Direct flights from San Francisco (SFO)
Frequently Asked Questions
How long is the direct flight from Seoul to San Francisco?
A nonstop flight from Seoul (ICN) to San Francisco (SFO) takes approximately 10 hours and 40 minutes. The distance is 5,658 miles (9,106 km).
Which airlines fly nonstop from Seoul to San Francisco?
4 airlines: Korean Air, Asiana Airlines, United Airlines, Air Premia.
Is there a nonstop flight from Seoul to San Francisco?
Yes. 4 airlines: Korean Air, Asiana Airlines, United Airlines, Air Premia.
How far is Seoul from San Francisco?
The flight distance from Seoul to San Francisco is 5,658 miles (9,106 km), measured as the great-circle (shortest air) distance. That's roughly the same distance as London to Tokyo.
What is the time difference between Seoul and San Francisco?
San Francisco is 16 hours behind Seoul. (Asia/Seoul vs America/Los_Angeles.)
Will I experience jet lag flying from Seoul to San Francisco?
Probably — 16-hour time difference means significant jet lag. Expect about 1 day of adjustment per hour of shift. Flying westward is generally easier to adjust to.
What type of aircraft flies from Seoul to San Francisco?
At 10h 40m, this route typically uses wide-body aircraft — Boeing 777, 787, or Airbus A330/A350. Varies by airline.
Do I need a visa to travel from Republic of Korea to USA?
Depends on your passport. Check with the USA embassy or an official visa portal before booking — requirements change.
What is the carbon footprint of a flight from Seoul to San Francisco?
Roughly 865 kg CO2 per passenger one-way. That's about the same as driving 4,325 km.
Is the return flight from San Francisco to Seoul also nonstop?
Yes — nonstop flights run both ways. Flight time may differ slightly due to wind patterns.
When is the cheapest time to fly from Seoul to San Francisco?
Midweek flights (Tue/Wed) outside holiday peaks are usually cheapest. For long-haul, booking 2-3 months out tends to help. Use "Check Prices" above to compare.
How early should I arrive at Incheon International Airport for this flight?
3 hours before departure for international flights. You need time for check-in, security, and immigration.