Popular airlines from Seoul to San Francisco

You can choose from 3 airlines that fly from Seoul to San Francisco, including United Airlines, Air Premia, and Asiana Airlines. Air Premia offers the lowest prices on this route.
United Airlines logo United Airlines
Air Premia logo Air Premia
Asiana Airlines logo Asiana Airlines
Airlines are determined based on actual purchased flight tickets from Seoul to San Francisco according to previous 12 months data from Trip.com.

Explore the cheapest flights from Seoul to San Francisco in the next three months. Based on Trip.com's data from the latest 7 days, one-way direct flights start at S$ 688, and round-trip direct tickets start at S$ 1,085.

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Flying from Seoul to San Francisco

The distance between Seoul and San Francisco is approximately 9,048.83km. It takes around 10 hours 48 minutes on average to fly from Seoul to San Francisco. Based on Trip.com's data, travel demand peaks in July. The off-season for travel is October.

Cheapest one-way flight priceS$ 569
Cheapest return ticket priceS$ 1,056
Off-season for travelOctober
Peak season for travelJuly
Flight distance9,048.83km
Average flight time10 hours 48 minutes
Popular airlineUnited Airlines
Flight statistics for the Seoul–San Francisco route are based on aggregated booking data from Trip.com over the past 12 months.

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

What is the cheapest month for one-way flights from Seoul to San Francisco?

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

Based on Trip.com’s data, the cheapest month for flights from Seoul to San Francisco is February, with an average price of S$ 533, and the most expensive month is August, with an average price of up to S$ 890.

S$ 890
S$ 712
S$ 533
S$ 355
    Cheapest
  • S$ 746
    Jun
  • S$ 861
    Jul
  • S$ 890
    Aug
  • S$ 626
    Sep
  • S$ 776
    Oct
  • S$ 596
    Nov
  • S$ 578
    Dec
  • S$ 883
    Jan
  • S$ 533
    Feb
  • S$ 655
    Mar
  • S$ 812
    Apr
  • S$ 684
    May

What is the cheapest month for round-trip flights from Seoul to San Francisco?

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

Based on Trip.com’s data, the cheapest month for round-trip flights from Seoul to San Francisco is November, with an average price of S$ 851, and the most expensive month is April, with an average price of up to S$ 1,346.

S$ 1,346
S$ 1,099
S$ 851
S$ 604
    Cheapest
  • S$ 1,055
    Jun
  • S$ 1,159
    Jul
  • S$ 1,233
    Aug
  • S$ 965
    Sep
  • S$ 1,299
    Oct
  • S$ 851
    Nov
  • S$ 1,056
    Dec
  • S$ 1,299
    Jan
  • S$ 871
    Feb
  • S$ 1,161
    Mar
  • S$ 1,346
    Apr
  • S$ 1,328
    May

Frequently Asked Questions

  • Which airlines offer the cheapest flights from Seoul (SEL) to San Francisco (SFO)?

    Based on Trip.com data, ZIPAIR offers one-way fares as low as S$ 569 on Cheapest nonstop routes (e.g. ICN to SFO on Wed, Jul 15), while Air Canada offers Cheapest nonstop round-trips from S$ 1,056 departing on Wed, Jul 8 and returning on Sun, Jul 12.
  • At the moment, you can catch a direct flight from Seoul to San Francisco with the following airlines, including: United Airlines Air Premia Asiana Airlines Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.
  • It takes about 10 hours 48 minutes to fly from Seoul (SEL) to San Francisco (SFO).
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Seoul to San Francisco 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 46 flight per week flying from Seoul to San Francisco. You can check the weekly schedule for popular airlines on this route below: Asiana Airlines: S/M/T/W/T/F/S -- OZ212 (21:20) Asiana Airlines: S/M/T/W/T/F/S -- OZ6614 (16:57)
  • To find best deals on flights from Seoul to San Francisco, 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 Wed, Jul 15, with one-way flights priced at just S$ 569.
    · 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 San Francisco travel is around July.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Seoul to San Francisco is October, when demand for travel is lower.
  • After crunching the numbers on our June flight calendar, it's currently cheapest to fly from Seoul to San Francisco on June 17, 2026 with United Airlines, with prices starting at S$ 1,064.
  • You can land at any one of the following hubs in San Francisco, with Incheon International Airport to San Francisco International Airport (ICN-SFO) is by far the most common option on this route: San Francisco International Airport (SFO).
  • The time difference between San Francisco and Seoul is 17h.
  • Tickets can only be changed or cancelled 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.

Note: Prices shown on this page are the lowest estimated 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 shown before payment. Charges for checked baggage, meals, Wi-Fi, and other optional services may also appear in the flight cards.

Real-time pricing updates

Prices, availability, and travel information on this page have been updated within the last 24 hours, and with many routes refreshed in real time. The more popular the route, the more accurate 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.