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Flights from San Francisco to Seoul

Hi, I've summed up all the key info for San Francisco to Seoul flights

Cheapest one-way

US$ 331
Air Premia Fri, Sep 18

55% below next 30d avg. (US$729)

Cheapest round-trip

US$ 639
Air Premia Sat, Oct 24

43% below next 30d avg. (US$1,122)

When to fly

October Cheapest month
January Peak month

Fastest flight

12h 40m 2m faster than avg. (12h 42m)

Recommended airlines

With a lowest one-way fare of US$331 , travelers can expect an average price of US$729 for upcoming trips, while round-trip tickets start at US$639 . Flights typically take around 12h 42m , but the fastest nonstop option completes the journey in just 12h 40m minutes. There are 41 flights weekly on this route. You can land at any one of the following hubs in Seoul: Gimpo International Airport (GMP) , and Incheon International Airport (ICN) . Flying from San Francisco International Airport to Incheon International Airport (SFO-ICN) is by far the most common option on this route. To secure the best rates, booking 40 days in advance is recommended, and the cheapest travel days are Tuesday, Wednesday, and Saturday .

Updated 1d ago · This content is an AI-powered summary based on Trip.com data. Prices and availability are subject to change. Please refer to actual prices, availability, and travel conditions.

Explore the cheapest one-way and round-trip flights from San Francisco to Seoul over the next 90 days, with one-way fares from US$331 and round-trip from US$639. Based on Trip.com's latest 7-day flight data.

      • Cheapest nonstop
        SFO 15:30
        12h 40m
        Nonstop
        ICN 20:10
        San Francisco - Seoul | Sat, Oct 24 | Air Premia
        ICN 19:45
        10h 35m
        Nonstop
        SFO 14:20
        Seoul - San Francisco | Fri, Oct 30 | Air Premia
        US$639 US$762
        16% off
        16% off
        US$762 US$639
      • SFO 17:00
        12h 40m
        Nonstop
        ICN 21:40
        San Francisco - Seoul | Wed, Oct 21 | Air Premia
        ICN 19:45
        10h 35m
        Nonstop
        SFO 14:20
        Seoul - San Francisco | Mon, Oct 26 | Air Premia
        US$639 US$762
        16% off
        16% off
        US$762 US$639
      • SFO 16:20
        13h
        Nonstop
        ICN 21:20
        San Francisco - Seoul | Wed, Oct 28 | Air Premia
        ICN 19:45
        10h 35m
        Nonstop
        SFO 13:20
        Seoul - San Francisco | Sun, Nov 1 | Air Premia
        US$639 US$762
        16% off
        16% off
        US$762 US$639
      • SFO 16:20
        13h
        Nonstop
        ICN 21:20
        San Francisco - Seoul | Mon, Oct 26 | Air Premia
        ICN 19:45
        10h 35m
        Nonstop
        SFO 14:20
        Seoul - San Francisco | Fri, Oct 30 | Air Premia
        US$639
        16% off
        US$762 US$639
      • SFO 15:20
        13h
        Nonstop
        ICN 21:20
        San Francisco - Seoul | Sun, Nov 1 | Air Premia
        ICN 19:45
        10h 35m
        Nonstop
        SFO 13:20
        Seoul - San Francisco | Sat, Nov 7 | Air Premia
        US$639
        16% off
        US$762 US$639
      • SFO 15:20
        13h
        Nonstop
        ICN 21:20
        San Francisco - Seoul | Wed, Nov 4 | Air Premia
        ICN 19:45
        10h 35m
        Nonstop
        SFO 13:20
        Seoul - San Francisco | Sat, Nov 7 | Air Premia
        US$639
        16% off
        US$762 US$639
      • SFO 17:00
        12h 40m
        Nonstop
        ICN 21:40
        San Francisco - Seoul | Mon, Sep 21 | Air Premia
        ICN 19:15
        11h
        Nonstop
        SFO 14:15
        Seoul - San Francisco | Mon, Sep 28 | Air Premia
        US$640
        16% off
        US$762 US$640
      • SFO 15:30
        12h 40m
        Nonstop
        ICN 20:10
        San Francisco - Seoul | Sat, Sep 19 | Air Premia
        ICN 18:00
        11h
        Nonstop
        SFO 13:00
        Seoul - San Francisco | Sat, Sep 26 | Air Premia
        US$640
        16% off
        US$762 US$640
      • SFO 16:20
        13h
        Nonstop
        ICN 21:20
        San Francisco - Seoul | Fri, Oct 30 | Air Premia
        ICN 19:45
        10h 35m
        Nonstop
        SFO 13:20
        Seoul - San Francisco | Sun, Nov 1 | Air Premia
        US$640
        16% off
        US$762 US$640
      • SFO 16:20
        13h
        Nonstop
        ICN 21:20
        San Francisco - Seoul | Sat, Oct 31 | Air Premia
        ICN 19:45
        10h 35m
        Nonstop
        SFO 13:20
        Seoul - San Francisco | Wed, Nov 4 | Air Premia
        US$640
        16% off
        US$762 US$640
      • SFO 13:00
        17h 25m
        1 stop
        SEL 14:00
        San Francisco - Seoul | Sat, Sep 12 | Normal Airline
        SEL 15:00
        6h
        Nonstop
        SFO 16:00
        Seoul - San Francisco | Mon, Sep 14 | Normal Airline
        More cheap flights
        More cheap flights
      • Cheapest nonstop
        SFO 17:00
        12h 40m
        Nonstop
        ICN 21:40
        San Francisco - Seoul | Fri, Sep 18 | Air Premia
        US$331 US$409
        19% off
        19% off
        US$409 US$331
      • SFO 17:00
        12h 40m
        Nonstop
        ICN 21:40
        San Francisco - Seoul | Wed, Sep 16 | Air Premia
        US$332 US$409
        19% off
        19% off
        US$409 US$332
      • SFO 15:30
        12h 40m
        Nonstop
        ICN 20:10
        San Francisco - Seoul | Sat, Sep 19 | Air Premia
        US$332 US$409
        19% off
        19% off
        US$409 US$332
      • SFO 17:00
        12h 40m
        Nonstop
        ICN 21:40
        San Francisco - Seoul | Wed, Oct 21 | Air Premia
        US$333
        19% off
        US$409 US$333
      • SFO 17:00
        12h 40m
        Nonstop
        ICN 21:40
        San Francisco - Seoul | Fri, Sep 11 | Air Premia
        US$336
        18% off
        US$409 US$336
      • SFO 15:20
        13h
        Nonstop
        ICN 21:20
        San Francisco - Seoul | Fri, Nov 6 | Air Premia
        US$338
        17% off
        US$409 US$338
      • SFO 15:20
        13h
        Nonstop
        ICN 21:20
        San Francisco - Seoul | Wed, Nov 4 | Air Premia
        US$338
        17% off
        US$409 US$338
      • SFO 15:30
        12h 40m
        Nonstop
        ICN 20:10
        San Francisco - Seoul | Sat, Oct 24 | Air Premia
        US$342
        16% off
        US$409 US$342
      • SFO 16:10
        31h 10m
        1 stop
        ICN 15:20
        San Francisco - Seoul | Fri, Sep 18 | United Airlines
        US$342
        16% off
        US$409 US$342
      • SFO 16:30
        30h 55m
        1 stop
        ICN 16:25
        San Francisco - Seoul | Mon, Nov 9 | United Airlines
        US$343
        16% off
        US$409 US$343
      • SFO 13:00
        17h 25m
        1 stop
        SEL 14:00
        San Francisco - Seoul | Sat, Sep 12 | Normal Airline
        More cheap flights
        More cheap flights

Flight.News
Flights from San Francisco to Seoul operate an average of 11 times per day over the past 7 days, with a 0.0% on-time departure rate and a 93.0% on-time arrival rate.

Which airlines are the most popular for San Francisco to Seoul flights?

The most popular airlines flying from San Francisco to Seoul are Air Premia, United Airlines, and Asiana Airlines, among 6 carriers on this route. Air Premia offers the lowest fares. Based on Trip.com's flight booking data from the previous 12 months.
Air Premia logo Air Premia
United Airlines logo United Airlines
Asiana Airlines logo Asiana Airlines
Korean Air logo Korean Air
Delta Air Lines logo Delta Air Lines
Air Canada logo Air Canada
Airlines are determined based on actual purchased flight tickets from San Francisco to Seoul according to previous 12 months data from Trip.com.

San Francisco to Seoul Flight Information

The distance between San Francisco and Seoul is about 9,048.83 km. The average flying time from San Francisco to Seoul is around 12 hours 42 minutes. Based on Trip.com's latest data, travel demand is highest in January. The off-season for travel is October.

Cheapest one-way flight price US$331
Cheapest return ticket price US$639
Cheapest month October
Peak season for travel January
Flight distance 9,048.83 km
Average flight time 12 hours 42 minutes
Popular airline Air Premia
Frequency ～17/week
Flight statistics for the San Francisco–Seoul route are based on aggregated booking data from Trip.com over the past 12 months.

Trip.com Price Trends on Flights from San Francisco to Seoul

Which month has the cheapest one-way flights from San Francisco to Seoul?

Average monthly one-way flight prices from San Francisco to Seoul, based on bookings made by Trip.com users over the past 12 months.

Based on Trip.com’s data, the cheapest month for flights from San Francisco to Seoul is August, with an average price of US$424; while the month with the highest flight price is usually June, with an average price of up to US$1,069.

US$1,069
US$747
US$424
US$102
    Cheapest
  • US$468
    Sep
  • US$747
    Oct
  • US$439
    Nov
  • US$780
    Dec
  • US$480
    Jan
  • US$513
    Feb
  • US$619
    Mar
  • US$530
    Apr
  • US$897
    May
  • US$1,069
    Jun
  • US$484
    Jul
  • US$424
    Aug

Which month has the cheapest round-trip flights from San Francisco to Seoul?

The average price of round-trip flights from San Francisco to Seoul purchased by Trip.com users by month over the past 12 months.

Based on data from Trip.com, the lowest prices for round-trip flights from San Francisco to Seoul are found during August, with an average price of US$768. Conversely, the highest prices are found during December, with an average price of up to US$1,601.

US$1,601
US$1,185
US$768
US$352
    Cheapest
  • US$853
    Sep
  • US$1,227
    Oct
  • US$820
    Nov
  • US$1,601
    Dec
  • US$803
    Jan
  • US$770
    Feb
  • US$938
    Mar
  • US$896
    Apr
  • US$989
    May
  • US$1,391
    Jun
  • US$1,296
    Jul
  • US$768
    Aug

Frequently Asked Questions

  • What are the cheapest flights from San Francisco to Seoul (SFO-SEL)?

    Based on Trip.com data, Air Premia offers one-way fares as low as US$331 on Cheapest nonstop routes (e.g. SFO to ICN on Fri, Sep 18), while Air Premia offers Cheapest nonstop round-trips from US$639 departing on Sat, Oct 24 and returning on Fri, Oct 30.
  • At the moment, you can catch a nonstop flight from San Francisco to Seoul with the following airlines, including: Air Premia United Airlines Asiana Airlines Korean Air Air Canada Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.
  • It takes about 12 hours 42 minutes to fly from San Francisco to Seoul.
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from San Francisco to Seoul is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • Based on Trip.com data in the past 4 weeks, there is 41 flight per week flying from San Francisco to Seoul. You can check the weekly schedule for popular airlines on this route below: United Airlines: S/M/T/W/T/F/S -- UA805 (00:17) Asiana Airlines: S/M/T/W/T/F/S -- OZ6621 (00:17)
  • To find best deals on flights from San Francisco to Seoul, you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Fri, Sep 18, with one-way flights priced at just US$331.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Air Premia.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for Seoul travel is around January.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from San Francisco to Seoul is October, when demand for travel is lower.
  • After crunching the numbers on our September flight calendar, it's currently cheapest to fly from San Francisco to Seoul on September 21, 2026 with Air Premia, with prices starting at US$330.
  • You can land at any one of the following hubs in Seoul: Gimpo International Airport (GMP), and Incheon International Airport (ICN). Flying from San Francisco International Airport to Incheon International Airport (SFO-ICN) is by far the most common option on this route.
  • The time difference between Seoul and San Francisco is 17h.
  • Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.
  • Based on Trip.com data for flights departing in the next 30 days, the average one-way fare from San Francisco to Seoul is US$729. Fares vary by travel date, airline and availability.
  • Based on Trip.com data for travel in the next 30 days, the average round-trip fare from San Francisco to Seoul is US$1,122. The final price depends on the outbound and return dates, airline and fare conditions.
  • Enter San Francisco and Seoul, choose your travel dates and passengers, then compare flights by price, duration and baggage. Select a fare, review the change and cancellation rules, enter traveler details and complete payment to receive your confirmation.

Trip.com Airline Insights on Flights from San Francisco to Seoul

Which airline offers the cheapest direct flights from San Francisco to Seoul?

Data is based on the average price of all nonstop flights from San Francisco to Seoul on Trip.com over the past 12 months.

Based on Trip.com’s data from the past 12 months, Cathay Pacific provides the lowest-priced direct flights from San Francisco to Seoul, with fares starting at US$503.

US$322
US$503
US$684
US$865
US$1,046
Cathay Pacific
US$503
Cathay Pacific
Air Premia
US$609
Air Premia
Asiana Airlines
US$749
Asiana Airlines
EVA Air
US$841
EVA Air
United Airlines
US$896
United Airlines
Korean Air
US$1,046
Korean Air

Which airline operates the most flights from San Francisco to Seoul?

Total flights from San Francisco to Seoul across all airlines. (Based on Trip.com data from the past month)

Based on Trip.com’s data from the past month, Asiana Airlines/United Airlines operates the most frequent flights from San Francisco to Seoul, with 22 flights per week.

0
7
15
22
Asiana Airlines
22
Asiana Airlines
United Airlines
22
United Airlines
Delta Air Lines
8
Delta Air Lines
Korean Air
8
Korean Air
Singapore Airlines
7
Singapore Airlines
Thai Airways
7
Thai Airways

How many flights fly from San Francisco to Seoul daily?

The data is based on the flight numbers for each day of the week from San Francisco to Seoul within the Trip.com database over the past month.

Based on the past month's historical data from Trip.com, the number of flights from San Francisco to Seoul is the highest on Friday and the lowest on Tuesday/Thursday.

55
48
40
33
Highest
44
Mon
40
Tue
44
Wed
40
Thu
55
Fri
51
Sat
43
Sun

Explore More Popular Flights

Note: Prices shown on this page are the estimated lowest prices found in the last 24 hours and include all taxes and fees.

Book with no extra fees

Prices displayed on this page are all-inclusive (incl. taxes, fuel surcharges, Civil Aviation Development Fund, etc.), and all fees are clearly shown before you pay. Charges for checked baggage, onboard meals, Wi‑Fi, and other optional services are also included where applicable in the flight cards.

Real-time pricing updates

Prices, availability, and travel details on this page have been updated within the last 24 hours, and for many routes are refreshed in real time. The more popular the route, the more accurate and up-to-date the data.

Change & Cancellation Policy

Trip.com shows the change and cancellation rules for each ticket during the booking process, including all related fees and conditions. Please refer to the following scenarios:
Voluntary cancellation/change:
To request a change or cancellation, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and flight segment, and submit your request. Please note that additional charges may apply based on the airline’s fare rules.
Cancellation/change due to a flight schedule change:
If your flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For full details of change and cancellation policies, please refer to the customer support pages.