Cheap Flights from San Francisco to Seoul from $330

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 $330 on Cheapest nonstop routes (e.g. SFO to ICN on Mon, Sep 28), while Air Premia offers Cheapest nonstop round-trips from $638 departing on Mon, Oct 19 and returning on Fri, Oct 23.

• Which airlines offer direct flights from San Francisco to Seoul?

  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 Alaska Airlines Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.

• How long does it take to fly from San Francisco (SFO) to Seoul (SEL) and what is the distance?

  It takes around 12 hours 43 minutes to fly from San Francisco (SFO) to Seoul (SEL).

• When is the best time to book flights 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.

• How many flights are there per week from San Francisco to Seoul?

  Based on Trip.com data in the past 4 weeks, there is 43 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 (00:10) Asiana Airlines: S/M/T/W/T/F/S -- OZ211 (23:47)

• How can I find the best deals on flights from San Francisco to Seoul?

  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 Mon, Sep 28, with one-way flights priced at just $330.
  · 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.

• When are flight tickets from San Francisco (SFO) to Seoul (SEL) the cheapest?

  The cheapest months to fly from San Francisco to Seoul is October, when demand for travel is lower.

• Which upcoming date is cheapest to fly from San Francisco to Seoul on?

  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 $330.

• Which airports can I fly into Seoul from San Francisco?

  You can arrive at any of the following airports in Seoul: Incheon International Airport (ICN), and Gimpo International Airport (GMP). Flights from San Francisco International Airport to Incheon International Airport (SFO-ICN) are by far the most popular option for this route.

• Is there any time difference between San Francisco and Seoul?

  The time difference between Seoul and San Francisco is 17h.

• How do I change or cancel my ticket from San Francisco to Seoul?

  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.

• What is the average cost of a one-way flight from San Francisco to Seoul?

  Based on Trip.com data for flights departing in the next 30 days, the average one-way fare from San Francisco to Seoul is $753. Fares vary by travel date, airline and availability.

• What is the average cost of a round-trip flight from San Francisco to Seoul?

  Based on Trip.com data for travel in the next 30 days, the average round-trip fare from San Francisco to Seoul is $1,136. The final price depends on the outbound and return dates, airline and fare conditions.

• How do I book flights from San Francisco to Seoul on Trip.com?

  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.