San FranciscoSeoul, South Korea

Flights from San Francisco to Seoul

Fares, airlines, flight time and both airports for SFO–ICN.

From $255 one-way · seen 11 Sept 2026
About 11h 51m nonstop
2 airlines with flights or fares
9,085 kmdistance
~11h 51mnonstop
from $255one-way, nonstop, seen 11 Sept 2026
Ultra long-haulroute

Route snapshot: San Francisco to Seoul

San Francisco (SFO) to Seoul (ICN) is 9,085 km, about 11h 51m flying nonstop. Airlines with flights or nonstop fares on this route include United Airlines and Air Premia. The lowest one-way fare seen recently was $255 with United Airlines (nonstop), departing 16 Nov 2026 — as of 11 Sept 2026.

Check fares, see which airlines fly this route, and sort out airports, visas, and what to do at the destination — all before you book.

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Why travelers watch this route

Fares seen

The lowest one-way fare seen was $255 with United Airlines (nonstop), departing 16 Nov 2026; with connections it dropped to $254. Checked 11 Sept 2026 — fares move daily.

Seasonality

Seoul demand usually strengthens around April – June, September – November, which can push fares higher on this corridor.

Who flies it

Airlines with flights or nonstop fares here include United Airlines and Air Premia. More carriers may sell it with a connection.

Airlines flying San Francisco to Seoul

Carriers on SFO–ICN according to our route data and nonstop fares seen as of 11 Sept 2026. Not a complete list.

✈ United Airlinesnonstop fare seen✈ Air Premianonstop fare seen

San Francisco–Seoul route intelligence

Updated analysis of the SFO–ICN corridor — distance, timing, and connecting options.

Route class
Ultra-long-haul
Distance
9,086 km
Flight time
11h 30m

Route profile

San Francisco (SFO) to Seoul (ICN) is a ultra-long-haul corridor spanning approximately 9,086 km, with typical block time around 11h 30m.

Best time to book

Ultra-long-haul corridors reward early planners — fares are softest 12-16 weeks before departure. Premium-cabin awards open ~330 days out.

Demand-spike calendar: Chuseok (Korean Thanksgiving, Sep/Oct) and Lunar New Year create severe demand spikes. Outside those windows Seoul is reasonably priced year-round.

Visa & arrival

Passport-validity and visa requirements differ between and South Korea — most arriving travellers need at least six months of remaining passport validity. Check AirConnect's visa checker for your nationality before booking, especially if you plan to connect through a third country en route.

Best time to fly to Seoul

Based on weather and travel conditions in South Korea

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Best monthsGoodAvoid if possible

Spring and autumn offer mild weather and stunning scenery. Summer (July–August) is hot and rainy; winter is bitterly cold but perfect for ski resorts like Gangwon.

Peak season: April – June, September – November

Direct & Connecting Flights

Nonstop flights link San Francisco (SFO) and Seoul (ICN), taking about 11h 51m. Connecting itineraries can be cheaper but take longer.

Fares & Price Guide

The lowest one-way fare seen on SFO–ICN was $255 USD (nonstop) as of 11 Sept 2026. Set a fare alert to be told when it drops.

About Seoul, South Korea

Flights arrive at Incheon International Airport (ICN). Best visited during April – June, September – November. See the destination guide for hotels, visa requirements and travel tips.

Plan this route beyond the fare

Use the wider AirConnect network to move from a route check into airports, airlines, visa, and trip planning.

Explore related route clusters

These hubs help search engines and travelers understand where this corridor sits in the wider route graph.

Deals on San Francisco → Seoul

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Frequently asked questions — San Francisco to Seoul flights

Ready to book SFO–ICN?

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