Cheap flights from Seoul to San Francisco

Seoul
SEL
San Francisco
SFO

Flight deals from Seoul to San Francisco

Below you can see the best deals on flights Seoul — San Francisco for upcoming dates. Direct and connecting flights from various airlines — compare prices and choose the right ticket.

The lowest price for the next 2 months is on 25 September, from $368.

Top 10 cheap flights from Seoul to San Francisco

UA
$ 375

Seoul — San Francisco

11:30—06:30
5 Sep 2026
11 h
Direct flight
UA
$ 375

Seoul — San Francisco

16:50—12:00
5 Sep 2026
11 h 10 m
Direct flight
UA
$ 375

Seoul — San Francisco

11:30—06:10
11 Sep 2026
10 h 40 m
Direct flight
UA
$ 375

Seoul — San Francisco

16:50—11:40
11 Sep 2026
10 h 50 m
Direct flight
UA
$ 375

Seoul — San Francisco

11:30—06:10
12 Sep 2026
10 h 40 m
Direct flight
UA
$ 375

Seoul — San Francisco

11:30—06:30
4 Sep 2026
11 h
Direct flight
UA
$ 375

Seoul — San Francisco

16:50—12:00
4 Sep 2026
11 h 10 m
Direct flight
UA
$ 375

Seoul — San Francisco

11:30—06:30
6 Sep 2026
11 h
Direct flight
UA
$ 375

Seoul — San Francisco

16:50—12:00
6 Sep 2026
11 h 10 m
Direct flight
UA
$ 375

Seoul — San Francisco

11:30—06:10
13 Sep 2026
10 h 40 m
Direct flight

Prices were found in the last 72 hours and may change — check the exact price when you continue.

About the Seoul — San Francisco flight

Looking for cheap flights from Seoul to San Francisco? Compare fares from different airlines, check the flight schedule and travel time — and book your Seoul — San Francisco ticket online at the best price.

The route has direct flights — around 77 flights per week, flights are operated by United Airlines, Asiana Airlines, Korean Air, Air Premia and 3 more airlines, a nonstop flight takes about 11 h, the distance between the cities is around 9,050 km.

Planning your trip? You may find our San Francisco travel guide, how to get from the airport into town and San Francisco weather forecast useful. To catch a low fare, use the low-price calendar and the monthly price chart on this page.

Facts about this route

from $368Min. price
SeptemberCheapest
JulyPeak season
YesDirect flights
9,050 kmDistance
11 hTravel time
7Airlines
77 / wkFlights

Flight schedule from Seoul to San Francisco

The table shows direct flights from Seoul to San Francisco on the selected date. The flight takes approximately 11 h. Regular flights are operated by United Airlines, Asiana Airlines, Korean Air and Air Premia. Departures from Incheon International Airport and Gimpo International Airport airports, arrivals at San Francisco International Airport.

For each flight, the following details are shown: departure time (local), arrival city and airport, flight number and airline, terminal or gate, and status. Click on a flight to open its details and go to ticket search. To view flights on a different day, change the date above the table.

Today
Any time
Last update: 14 Aug 2026

Flight ticket prices by day: Seoul — San Francisco

Below is a calendar of the lowest flight ticket prices for Seoul — San Francisco by day. Pick a convenient date and instantly see the fare. The cheapest flights on this route start from $368 in September, and the most expensive are around $645 in July. If your travel dates are flexible, the calendar will help you find the best price for your preferred period. To view round-trip fares, switch to the "Round trip" tab above the calendar, select your departure date — and the right-hand calendar will highlight the lowest prices for return flights on each day.

 
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Prices by month

Average one-way fares from Seoul to San Francisco by month. Tickets are usually cheapest in January (around $701) and priciest in July (about $1,064) — use the table and chart below to pick the best time to fly.

MonthAverage priceLevelMonthAverage priceLevelMonthAverage priceLevel
Jan$701lowMay$846mediumSep$870medium
Feb$725lowJun$943highOct$822medium
Mar$786mediumJul$1,064highNov$725low
Apr$761mediumAug$1,039highDec$991high

Seasonality estimate: no exact data found for this route; prices are calculated based on typical seasonal trends for this direction.

When to fly

Weather in San Francisco: it is warmest in September (up to 24 °C on average) and coolest in January (around 14 °C). The driest month is June.

Tickets are usually cheapest in September and most expensive in July. Compare prices and weather by month in the charts below to pick the best time to fly.

Temperature · San Francisco

Dry and wet days · San Francisco

Wind speed and direction · San Francisco

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How to get the best deal on a Seoul — San Francisco ticket

  • Book ahead: fares for Seoul — San Francisco are usually lower 3–8 weeks before departure than at the last minute.
  • Play with your dates — Tuesday, Wednesday and Saturday departures are often cheaper than Friday and Sunday.
  • Seoul is served by more than one airport — compare fares and travel time to each before you book.
  • The cheapest month to fly to San Francisco is usually September — plan your trip around it if your dates are flexible.
  • Compare direct and connecting flights: nonstop is faster, while a connection is sometimes noticeably cheaper.
  • Watch the low-price calendar and the monthly price trend on this page — they make it easier to catch a good date.
  • Travelling light? Pick a cabin-baggage-only fare — tickets without checked luggage are noticeably cheaper.
  • Get to the airport in good time — about 2–3 hours before an international departure and roughly an hour before a domestic one.

Airlines

Flights on the Seoul — San Francisco route are operated by 7 airlines; United Airlines runs the most flights (around 38% of all flights). Compare carriers, flight shares and schedules below.

  • United AirlinesUA
    10x/week
    WebsiteFleet: 956165M pax/year
    • Direct flight ICN → SFO10x/week
      Duration
      11h 5m
      Days
      MTWTFSS
    37.7%Open →
  • Asiana AirlinesOZ
    5x/week
    WebsiteFleet: 6916M pax/year
    • Direct flight ICN → SFO5x/week
    20.8%Open →
  • Korean AirKE
    5x/week
    WebsiteFleet: 16025M pax/year
    • Direct flight ICN → SFO5x/week
      Duration
      11h
      Days
      MTWTFSS
    18.2%Open →
  • Air PremiaYP
    3x/week
    WebsiteFleet: 8766k pax/year
    • Direct flight ICN → SFO3x/week
      Duration
      11h
      Days
      MTWTFSS
    10.4%Open →
  • DeltaDL
    3x/week
    WebsiteFleet: 986190M pax/year
    • Direct flight ICN → SFO3x/week
      Duration
      11h
      Days
      MTWTFSS
    10.4%Open →
  • Singapore AirlinesSQ
    1x/week
    WebsiteFleet: 16325M pax/year
    • Direct flight ICN → SFO1x/week
    1.3%Open →
  • Thai AirwaysTG
    1x/week
    WebsiteFleet: 7715M pax/year
    • Direct flight ICN → SFO1x/week
    1.3%Open →

Cities and airports on the Seoul — San Francisco route

Flights Seoul — San Francisco depart from Incheon International Airport and Gimpo International Airport and arrive at San Francisco International Airport. Below are pages for the cities, countries, and airports on the route: airlines, schedules, and travel guides.

Departure

Seoul

SEL
Korea, Republic Of
About the cityHow to get thereWeatherAll about the country Korea, Republic Of
Arrival

San Francisco

SFO
United States
About the cityHow to get thereWeatherAll about the country United States
Departure airports
Arrival airports

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Frequently asked questions about the Seoul — San Francisco flight

How long is the flight from Seoul to San Francisco?

A nonstop Seoul — San Francisco flight takes about 11 h — the distance between the cities is around 9,050 km.

How far is it from Seoul to San Francisco?

The distance from Seoul to San Francisco is about 9,050 km, which a nonstop flight covers in around 11 h.

Are there direct flights from Seoul to San Francisco?

Yes, there are nonstop flights Seoul — San Francisco — around 77 flights per week.

Which airlines fly from Seoul to San Francisco?

Airlines operating Seoul — San Francisco include United Airlines, Asiana Airlines, Korean Air, Air Premia, Delta. See the full list with schedules in the "Airlines" section on this page.

Which airports do Seoul — San Francisco flights use?

Flights from Seoul depart from Incheon International Airport, Gimpo International Airport, and arrive at San Francisco International Airport. If a city has more than one airport, check which one your ticket uses before you travel.

How much is a ticket from Seoul to San Francisco?

The price of a Seoul — San Francisco ticket depends on your travel date, season and demand: it is usually cheapest to fly in September, and most expensive in July. Tickets typically cost between $368 and $645. Check the current lowest fare and low-price calendar on this page.

When is the best time to book flights Seoul — San Francisco?

Flights Seoul — San Francisco are usually cheaper when booked in advance — a few weeks before departure and away from peak dates; the most budget-friendly month to fly is September. Compare prices by month in the price trend chart on this page.

How can I find the cheapest flights from Seoul to San Francisco?

To catch a low fare Seoul — San Francisco, book a few weeks in advance, keep your dates flexible, and compare airlines and connecting options. The low-price calendar and monthly price chart on this page show the cheapest days and months at a glance: the most budget-friendly month to fly is usually September.

How early should I arrive at the airport?

For international flights, plan to be at the airport about 2–3 hours before departure, and around an hour before a domestic flight. Allow extra time during busy travel seasons and at large hubs, where check-in and security lines can be longer.

Where else you can fly from Seoul

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Where else you can fly from San Francisco

See all
Los AngelesNew York CitySeattleSan DiegoSanta AnaLas VegasBurbankBostonVancouverPhoenixPortlandLondonDenverPalm SpringsHonoluluDallasChicagoSalt Lake CityAustinAtlantaWashington, D.C.HoustonKahuluiTaipeiMinneapolisTorontoDetroitOrlandoSpokaneTokyoParisBoiseSan Jose del CaboKapaaPuerto VallartaRedmondFrankfurt am MainCalgaryMexico CityKailua-Kona

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