Originfacts

Flight route

Flights from San Francisco (SFO) to Seoul (ICN)

Distance, flight time and the airlines in Originfacts’ route record for San Francisco to Seoul, the two airports, and partner fare tools. Each figure shows where it came from.

IATA code SFOFromSan FranciscoSan Francisco International Airport, United States
9,086 km~10h 57m est.
IATA code ICNToSeoulIncheon International Airport, South Korea
In our route record:Delta Air LinesKorean AirAsiana AirlinesSingapore AirlinesUnited Airlines
Find flights SFO → ICN

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Route record, updated 21 May 2026Where this comes from

SFO → ICN at a glance

  • Distance

    9,086 km

    About 5,646 miles: the great-circle distance between the two airports’ coordinates.

    Route record · checked against coordinates

  • Flight time

    ~10h 57m

    An estimate, not a timetable. The airline’s schedule gives the actual time.

    Route record estimate

  • Time difference

    +16h

    Seoul is 16h ahead of San Francisco today. SFO: America/Los_Angeles (UTC−7) · ICN: Asia/Seoul (UTC+9)

    Calculated from IANA time zonesTime zones: Time difference

  • Airlines in route record

    5

    Delta Air Lines, Korean Air, Asiana Airlines, Singapore Airlines and United Airlines

    Originfacts route recordSee airlines: Airlines in route record

  • Return route

    ICN → SFO

    Flights from Seoul back to San Francisco.

    Originfacts route recordRelated routes: Return route

Airlines on the SFO–ICN route

Route record · 21 May 2026

The airlines Originfacts’ route record lists for SFO–ICN, after leaving out carriers listed only through a recycled airline code or as a codeshare. It is not a full schedule and does not say which airlines fly nonstop; check current flights with the airline.

Baggage and check-in rules are each airline’s general rules, read from its own site on the date shown. They are not specific to this route, and your fare type can change them: check your booking.

Fare calendar and schedule for SFO → ICN

Partner tools · indicative

Two tools from Aviasales, our flight-search partner. They load only if you allow advertising cookies. Prices in them come from recent searches and are indicative, not quotes; the fare on the booking page can differ. The schedule shows flights in the partner’s data, including codeshares sold by other airlines.

Fare calendar

This price calendar is provided by our partner Travelpayouts (Aviasales) and sets cookies.

Or search on flights.originfacts.com, our partner’s site

Flight schedule

This flight schedule is provided by our partner Travelpayouts (Aviasales) and sets cookies.

Or search on flights.originfacts.com, our partner’s site

The airports: San Francisco International Airport and Incheon International Airport

Airport records · OurAirports · Wikidata

Each airport guide lists the airport’s codes, location and time zone, any other routes and airlines Originfacts tracks from SFO or ICN, current weather and nearby airports, and where to check terminal and transport details.

Weather in Seoul: average high, low and rain by month

NASA POWER · modelled · 2016–2025

Averages of NASA POWER (opens in a new tab) daily values for 2016–2025 at 37.45°, 126.45° near ICN (MERRA-2 reanalysis grid, about 50 km cells), worked out by Originfacts. Modelled, not weather-station readings or a forecast.

In October, Seoul averages a daily high of 19°C and a low of 15°C, with about 88 mm of rain over the month.

Average daily high and low temperature and average monthly rain near ICN, 2016–2025
MonthHighLowRain
Jan2°C-2°C21 mm
Feb3°C-1°C26 mm
Mar8°C3°C42 mm
Apr13°C8°C61 mm
May17°C13°C100 mm
Jun22°C18°C136 mm
Jul26°C23°C295 mm
Aug28°C25°C270 mm
Sep25°C21°C160 mm
Octthis month19°C15°C88 mm
Nov12°C7°C57 mm
Dec5°C0°C30 mm

Seoul airport guide

Getting to and from SFO and ICN

Not yet verified

Ground transport, terminals and parking at either airport have not been checked against the airports’ own pages yet, so none are listed here.

Check directly:flysfo.com (opens in a new tab)airport.kr (opens in a new tab)

San Francisco to Seoul: common questions

Which airlines fly from San Francisco to Seoul?

Originfacts’ route record for SFO–ICN lists Delta Air Lines, Korean Air, Asiana Airlines, Singapore Airlines and United Airlines. It is not a full schedule; check current flights with the airline before booking.

How far is San Francisco from Seoul by air?

About 9,086 km, the great-circle distance between San Francisco International Airport and Incheon International Airport.

How long is the flight from San Francisco (SFO) to Seoul (ICN)?

The Originfacts route record estimates about 10h 57m nonstop. It is an estimate, not a timetable: the airline’s schedule gives the actual flight time.

Is there a time difference between San Francisco and Seoul?

Seoul is 16h ahead of San Francisco today (UTC+9 in Asia/Seoul vs UTC−7 in America/Los_Angeles).

Sources

Where each part of this page comes from
  • Distance, flight-time estimateOriginfacts route record, checked against the great-circle distance between the airport coordinates21 May 2026
  • AirlinesOriginfacts route record, leaving out carriers listed only through a recycled airline code or as a codeshare21 May 2026
  • Baggage and check-inEach airline’s own pages, via the Originfacts airline fact files; only checked values are shown5 Oct 2026 – 6 Oct 2026
  • Airport codes, time zonesOriginfacts airport records2 May 2026
  • Time differenceCalculated from each airport’s IANA time zone, with daylight saving applied for today’s dateToday
  • Airport websitesWikidata (official website property)—
  • Airport size class, runwaysOurAirports (opens in a new tab) open data (public domain); the size class is OurAirports’ own, not an official category5 Oct 2026
  • Airport opened, operator, passengersWikidata (CC0), each airport’s own item; passenger figures are the latest year recorded there, with its reference where Wikidata gives one5 Oct 2026
  • Weather in SeoulNASA POWER (opens in a new tab) daily data (MERRA-2 reanalysis), averaged by month by Originfacts. Modelled, not weather-station readings2016–2025
  • Fare calendar, scheduleAviasales widgets, loaded with advertising consentLive

Schedules, fares and airline rules change. Confirm with the airline before you travel.