Cheap flights from San Francisco to Seoul

San Francisco
SFO
Seoul
SEL

Flight deals from San Francisco to Seoul

Below you can see the best deals on flights San Francisco — Seoul 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 28 September, from $335.

Top 10 cheap flights from San Francisco to Seoul

UA
UA
$ 353

San Francisco — Seoul

16:10—15:20
10 Sep 2026
31 h 10 m
1 stop
UA
UA
$ 353

San Francisco — Seoul

14:05—15:20
10 Sep 2026
33 h 15 m
1 stop
UA
UA
$ 353

San Francisco — Seoul

23:59—15:20
13 Sep 2026
23 h 21 m
1 stop
UA
UA
$ 353

San Francisco — Seoul

16:10—15:20
13 Sep 2026
31 h 10 m
1 stop
UA
UA
$ 353

San Francisco — Seoul

23:59—15:20
11 Sep 2026
23 h 21 m
1 stop
UA
UA
$ 353

San Francisco — Seoul

16:10—15:20
11 Sep 2026
31 h 10 m
1 stop
UA
UA
$ 353

San Francisco — Seoul

23:59—15:20
9 Sep 2026
23 h 21 m
1 stop
UA
UA
$ 353

San Francisco — Seoul

22:15—15:20
9 Sep 2026
25 h 5 m
1 stop
UA
UA
$ 353

San Francisco — Seoul

16:10—15:20
9 Sep 2026
31 h 10 m
1 stop
UA
UA
$ 353

San Francisco — Seoul

15:10—15:20
9 Sep 2026
32 h 10 m
1 stop

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

When is the best time to book a flight from San Francisco to Seoul?

The price of a flight from San Francisco to Seoul changes depending on how far ahead you book. For the best chance of a lower fare, book around 30 days before departure, when the average ticket costs about $660. Fares also tend to climb as the departure date gets closer.

About the San Francisco — Seoul flight

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

The route has direct flights — around 76 flights per week, flights are operated by United Airlines, Asiana Airlines, Korean Air, Air Premia and 2 more airlines, a nonstop flight takes about 12 h 10 min, the distance between the cities is around 9,050 km.

Planning your trip? You may find our Seoul travel guide, how to get from the airport into town and Seoul 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 $335Min. price
SeptemberCheapest
MayPeak season
YesDirect flights
9,050 kmDistance
12 h 10 minTravel time
6Airlines
76 / wkFlights

Flight schedule from San Francisco to Seoul

The table shows direct flights from San Francisco to Seoul on the selected date. The flight takes approximately 12 h 10 min. Regular flights are operated by United Airlines, Asiana Airlines, Korean Air and Air Premia. Departures from San Francisco International Airport airports, arrivals at Incheon International Airport and Gimpo 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: San Francisco — Seoul

Below is a calendar of the lowest flight ticket prices for San Francisco — Seoul by day. Pick a convenient date and instantly see the fare. The cheapest flights on this route start from $335 in September, and the most expensive are around $503 in May. 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 San Francisco to Seoul by month. Tickets are usually cheapest in January (around $452) and priciest in July (about $735) — use the table and chart below to pick the best time to fly.

MonthAverage priceLevelMonthAverage priceLevelMonthAverage priceLevel
Jan$452lowMay$547mediumSep$528medium
Feb$471lowJun$660highOct$509medium
Mar$471lowJul$735highNov$471low
Apr$518mediumAug$679highDec$707high

Some values are estimated based on seasonality.

When to fly

Weather in Seoul: it is warmest in August (up to 29 °C on average) and coolest in January (around 2 °C). The driest month is January.

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

Temperature · Seoul

Dry and wet days · Seoul

Wind speed and direction · Seoul

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

  • Book ahead: fares for San Francisco — Seoul 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.
  • The cheapest month to fly to Seoul 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 San Francisco — Seoul route are operated by 6 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 SFO → ICN10x/week
      Duration
      12h 20m
      Days
      MTWTFSS
    38.2%Open →
  • Asiana AirlinesOZ
    8x/week
    WebsiteFleet: 6916M pax/year
    • Direct flight SFO → ICN8x/week
      Duration
      12h 20m
      Days
      MTWTFSS
    30.3%Open →
  • Korean AirKE
    5x/week
    WebsiteFleet: 16025M pax/year
    • Direct flight SFO → ICN5x/week
      Duration
      12h 10m
      Days
      MTWTFSS
    18.4%Open →
  • Air PremiaYP
    3x/week
    WebsiteFleet: 8766k pax/year
    • Direct flight SFO → ICN3x/week
      Duration
      12h 40m
      Days
      MTWTFSS
    10.5%Open →
  • Singapore AirlinesSQ
    1x/week
    WebsiteFleet: 16325M pax/year
    • Direct flight SFO → ICN1x/week
    1.3%Open →
  • Thai AirwaysTG
    1x/week
    WebsiteFleet: 7715M pax/year
    • Direct flight SFO → ICN1x/week
    1.3%Open →

Cities and airports on the San Francisco — Seoul route

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

Departure

San Francisco

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

Seoul

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

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Frequently asked questions about the San Francisco — Seoul flight

How long is the flight from San Francisco to Seoul?

A nonstop San Francisco — Seoul flight takes about 12 h 10 min — the distance between the cities is around 9,050 km.

How far is it from San Francisco to Seoul?

The distance from San Francisco to Seoul is about 9,050 km, which a nonstop flight covers in around 12 h 10 min.

Are there direct flights from San Francisco to Seoul?

Yes, there are nonstop flights San Francisco — Seoul — around 76 flights per week.

Which airlines fly from San Francisco to Seoul?

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

Which airports do San Francisco — Seoul flights use?

Flights from San Francisco depart from San Francisco International Airport, and arrive at Incheon International Airport, Gimpo 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 San Francisco to Seoul?

The price of a San Francisco — Seoul ticket depends on your travel date, season and demand: it is usually cheapest to fly in September, and most expensive in May. Tickets typically cost between $335 and $503. Check the current lowest fare and low-price calendar on this page.

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

Flights San Francisco — Seoul 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 San Francisco to Seoul?

To catch a low fare San Francisco — Seoul, 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 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

Where else you can fly from Seoul

See all
Jeju CityTokyoOsakaShanghaiBusanHong KongFukuokaBangkokQingdaoTaipeiBeijingDa NangHo Chi Minh CitySingaporeHanoiNagoyaNha TrangUlaanbaatarManilaLos AngelesSapporoCebu CityKuala LumpurPhu QuocDenpasarOkinawaHagatnaGuangzhouDalianYanjiJakartaSeattleNew York CityShenzhenMacauYantaiTashkentShenyangKaohsiungParis

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