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642 € Cheap Flights from San Francisco International to Seoul

Compare San Francisco International to Seoul flight deals

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Flight deals from San Francisco International to Seoul

Looking for a cheap last-minute deal or the best return flight from San Francisco International Airport to Seoul? If you want to travel next month, return fares start from 902 €. Find the lowest prices on one-way and return tickets right here.
Seoul.642 € per passenger.Departing Sun, 4 Oct, returning Thu, 5 Nov.Return flight with United.Outbound direct flight with United departs from San Francisco International on Sun, 4 Oct, arriving in Incheon International.Inbound direct flight with United departs from Incheon International on Thu, 5 Nov, arriving in San Francisco International.Price includes taxes and charges.From 642 €, select.
Seoul.642 € per passenger.Departing Mon, 2 Nov, returning Fri, 13 Nov.Return flight with United.Outbound direct flight with United departs from San Francisco International on Mon, 2 Nov, arriving in Incheon International.Inbound direct flight with United departs from Incheon International on Fri, 13 Nov, arriving in San Francisco International.Price includes taxes and charges.From 642 €, select.
Seoul.644 € per passenger.Departing Sun, 22 Nov, returning Wed, 2 Dec.Return flight with Air Premia.Outbound direct flight with Air Premia departs from San Francisco International on Sun, 22 Nov, arriving in Incheon International.Inbound direct flight with Air Premia departs from Incheon International on Wed, 2 Dec, arriving in San Francisco International.Price includes taxes and charges.From 644 €, select.
Seoul.644 € per passenger.Departing Sat, 17 Oct, returning Wed, 28 Oct.Return flight with Air Premia.Outbound direct flight with Air Premia departs from San Francisco International on Sat, 17 Oct, arriving in Incheon International.Inbound direct flight with Air Premia departs from Incheon International on Wed, 28 Oct, arriving in San Francisco International.Price includes taxes and charges.From 644 €, select.
Seoul.644 € per passenger.Departing Sat, 29 Aug, returning Sat, 12 Sep.Return flight with Air Premia.Outbound direct flight with Air Premia departs from San Francisco International on Sat, 29 Aug, arriving in Incheon International.Inbound direct flight with Air Premia departs from Incheon International on Sat, 12 Sep, arriving in San Francisco International.Price includes taxes and charges.From 644 €, select.
Seoul.644 € per passenger.Departing Wed, 16 Sep, returning Wed, 21 Oct.Return flight with Air Premia.Outbound direct flight with Air Premia departs from San Francisco International on Wed, 16 Sep, arriving in Incheon International.Inbound direct flight with Air Premia departs from Incheon International on Wed, 21 Oct, arriving in San Francisco International.Price includes taxes and charges.From 644 €, select.
Seoul.644 € per passenger.Departing Sun, 3 May, returning Wed, 6 May.Return flight with Air Premia.Outbound direct flight with Air Premia departs from San Francisco International on Sun, 3 May, arriving in Incheon International.Inbound direct flight with Air Premia departs from Incheon International on Wed, 6 May, arriving in San Francisco International.Price includes taxes and charges.From 644 €, select.
Seoul.644 € per passenger.Departing Wed, 26 Aug, returning Sun, 11 Oct.Return flight with Air Premia.Outbound direct flight with Air Premia departs from San Francisco International on Wed, 26 Aug, arriving in Incheon International.Inbound direct flight with Air Premia departs from Incheon International on Sun, 11 Oct, arriving in San Francisco International.Price includes taxes and charges.From 644 €, select.
Seoul.644 € per passenger.Departing Sun, 17 May, returning Wed, 26 Aug.Return flight with Air Premia.Outbound direct flight with Air Premia departs from San Francisco International on Sun, 17 May, arriving in Incheon International.Inbound direct flight with Air Premia departs from Incheon International on Wed, 26 Aug, arriving in San Francisco International.Price includes taxes and charges.From 644 €, select.
Seoul.644 € per passenger.Departing Fri, 4 Sep, returning Sun, 6 Sep.Return flight with Air Premia.Outbound direct flight with Air Premia departs from San Francisco International on Fri, 4 Sep, arriving in Incheon International.Inbound direct flight with Air Premia departs from Incheon International on Sun, 6 Sep, arriving in San Francisco International.Price includes taxes and charges.From 644 €, select.
Seoul.644 € per passenger.Departing Mon, 17 Aug, returning Fri, 21 Aug.Return flight with Air Premia.Outbound direct flight with Air Premia departs from San Francisco International on Mon, 17 Aug, arriving in Incheon International.Inbound direct flight with Air Premia departs from Incheon International on Fri, 21 Aug, arriving in San Francisco International.Price includes taxes and charges.From 644 €, select.
Seoul.645 € per passenger.Departing Sun, 2 Aug, returning Sun, 1 Nov.Return flight with Air Premia.Outbound direct flight with Air Premia departs from San Francisco International on Sun, 2 Aug, arriving in Incheon International.Inbound direct flight with Air Premia departs from Incheon International on Sun, 1 Nov, arriving in San Francisco International.Price includes taxes and charges.From 645 €, select.
Seoul.645 € per passenger.Departing Fri, 31 Jul, returning Mon, 14 Sep.Return flight with Air Premia.Outbound direct flight with Air Premia departs from San Francisco International on Fri, 31 Jul, arriving in Incheon International.Inbound direct flight with Air Premia departs from Incheon International on Mon, 14 Sep, arriving in San Francisco International.Price includes taxes and charges.From 645 €, select.
Seoul.647 € per passenger.Departing Sun, 27 Sep, returning Fri, 20 Nov.Return flight with United.Outbound direct flight with United departs from San Francisco International on Sun, 27 Sep, arriving in Incheon International.Inbound direct flight with United departs from Incheon International on Fri, 20 Nov, arriving in San Francisco International.Price includes taxes and charges.From 647 €, select.
Seoul.647 € per passenger.Departing Wed, 22 Jul, returning Wed, 26 Aug.Return flight with United.Outbound direct flight with United departs from San Francisco International on Wed, 22 Jul, arriving in Incheon International.Inbound direct flight with United departs from Incheon International on Wed, 26 Aug, arriving in San Francisco International.Price includes taxes and charges.From 647 €, select.
Seoul.647 € per passenger.Departing Sat, 9 May, returning Sat, 6 Jun.Return flight with United.Outbound direct flight with United departs from San Francisco International on Sat, 9 May, arriving in Incheon International.Inbound direct flight with United departs from Incheon International on Sat, 6 Jun, arriving in San Francisco International.Price includes taxes and charges.From 647 €, select.

Find the cheapest month to fly from San Francisco International to Seoul

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like San Francisco International to Seoul flights are currently cheapest in November.
May
from 644 €
Jun
from 902 €
Jul
from 920 €
Aug
from 644 €
Sep
from 644 €
Oct
from 644 €
Nov
from 642 €
Dec
from 647 €
Jan
from 713 €
Feb
from 712 €
Mar
from 829 €
Apr
from 892 €

Direct flights from San Francisco International to Seoul

Alternative San Francisco International to Seoul routes

Looking for the cheapest, fastest or easiest route from San Francisco International to Seoul? You could fly into the following airports instead.

Gimpo International

17km from central Seoul
Closest
from 762 €
Search flights

Incheon International

48km from central Seoul
Cheapest
from 642 €
Search flights

San Francisco to Seoul: Flight information

The things to know before you go.
Cheapest flight found642 €
Cheapest month to flyOctober
Average flight time12 hrs, 49 mins
Most popular airlineUnited
Average flights per week69

Finding cheap flights from San Francisco International to Seoul: Frequently asked questions

There are 2 airports in Seoul: Gimpo International and Incheon International.
The best price we found for a return flight from San Francisco International to Seoul is 642 €. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
12 hours and 49 minutes is the average flight time from San Francisco International to Seoul.
United, Asiana Airlines and Singapore Airlines fly direct from San Francisco International to Seoul.
As of May 2026, there are 138 flights per week flying from San Francisco International to Seoul.
The cheapest month to fly from San Francisco International to Seoul is usually October.
If you're flying from San Francisco International Airport, the cheapest airport near Seoul is Incheon International – which is 47.8 km away from the centre of Seoul. We've found flights into this airport from 642 €.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from San Francisco International Airport to Seoul on Sunday, 4 October 2026.
Yes – the average flight time is 12 hours and 49 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Seoul but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Seoul is around 40 days in advance, so don’t leave your flight to the last minute.
In May, the average temperature is usually around 15°C. August is typically the warmest month in Seoul, when it usually averages around 28°C. You can expect the least rain in January. The coldest month is January, with temperatures averaging -8°C. The rainiest month is July.
Currently, United offers the cheapest flight tickets to Seoul.

Travelling from San Francisco International Airport (SFO) to Seoul: what you need to know

  • The average duration of a direct flight from San Francisco International Airport to Seoul is 10 hours 40 minutes.

  • San Francisco International Airport is located in San Francisco. Based in the UTC+9 timezone, Seoul is 17 hours ahead of San Francisco.

  • San Francisco International Airport (SFO) to Seoul Incheon International Airport (ICN) is the most popular route, with 32 weekly departures to pick from. If you have things to do before heading off, the last flight from SFO to ICN is with United Airlines at 23:55. Choose the first departure with United Airlines at 10:30 if you want to fly out earlier.

  • To avoid rushing for your SFO to Seoul flight, allow plenty of time to navigate the airport and find your gate. Turning up two hours ahead of international departures and one hour before domestic flights is the general rule.

  • Travelling during a peak time like July? School holidays and other high seasons can mean longer lines and delays at check-in and security. Play it safe and arrive up to four hours ahead of international flights and two hours before a domestic departure.

  • You can book a direct San Francisco International Airport to Seoul ticket. Start your journey at SFO and arrive at Seoul Incheon International Airport (ICN).

  • You'll have your pick of carriers that operate direct flights from San Francisco International Airport to Seoul. Book your journey with one of these:

  • We make it easy to book plane tickets from SFO to Seoul with a stopover. To see all the options, deselect 'Direct flights only.' Then, choose a flight with a stop long enough to tour the city of your choice. The most sought-after stopovers include:

    • Tokyo Haneda International Airport (HND)

    • Las Vegas Harry Reid International Airport (LAS)

    • Ho Chi Minh Tan Son Nhat International Airport (SGN)

  • Located around 18 kilometres from central San Francisco, SFO can be reached in about 25 minutes by car, depending on traffic. The journey on public transport takes roughly 35 minutes.

  • Looking for a hotel near SFO? If you're boarding an early flight from San Francisco International Airport to Seoul, these accommodation options will get you from your pillow to the plane in no time:

  • When it comes to San Francisco International Airport's on-time performance, data shows 78% of flights meet their scheduled arrival time.

How to find the cheapest flights from San Francisco International Airport (SFO) to Seoul

  • 329 € is currently the lowest price for a one-way San Francisco International Airport to Seoul flight. A return plane ticket starts from 642 €. These fares may change based on availability.

  • Score cheap flights from SFO to Seoul by booking three months ahead. Based on our research, that's the sweet spot for finding a bargain.

  • Organise your trip for August. That's the best month for landing a bargain on San Francisco International Airport to Seoul tickets. If you're flexible on when you fly, use the 'Whole month' tool to find the cheapest price across every month.

  • Stay on top of deals for cheap flights from SFO to Seoul by creating a Price Alert. You'll receive an email or notification on the app when fares go down.

  • Tailor your trip with filters. Choose your departure and arrival times, total journey duration and airlines. You can also sort the results by 'Best,' 'Cheapest' or 'Fastest' flights from San Francisco International Airport to Seoul.

Airports in Seoul

Seoul Incheon International Airport (ICN)

  • Seoul Incheon International Airport (ICN) to the centre of Seoul takes about 1 hour 5 minutes by car. The centre is roughly 48 kilometres away.

  • Travelling to the centre on public transport takes about 50 minutes.

  • The last thing you need is a long journey to your hotel if you're arriving on a late flight from San Francisco International Airport to Seoul. Book one of these accommodation options near ICN instead:

  • Lock in the best possible rate by reserving your ride from Seoul Incheon International Airport around four weeks in advance of your flight from SFO to Seoul.

Seoul Gimpo International Airport (GMP)

  • Seoul Gimpo International Airport (GMP) is around 16 kilometres from central Seoul. Once you've disembarked your flight from San Francisco International Airport to Seoul, it'll take you around 30 minutes to get to the heart of the city in a ride-share or taxi.

  • You can expect the journey to take roughly 35 minutes on public transport.

  • Place the 'Do not disturb' sign on your door and unwind at a hotel close to GMP. Here are a few options where you can put your feet up after your SFO to Seoul flight:

  • Get exactly what you want. Reserving your ride from GMP one week ahead of time often means better prices and a wider choice of vehicles.

Best time to go to Seoul

  • It's time to choose your trip dates for your flight from San Francisco International Airport to Seoul. January is the most popular month to travel to Seoul. If you like a more relaxed atmosphere, go in December.

  • Book a San Francisco International Airport to Seoul plane ticket with a departure in August to experience the city during its warmest month. Expect temperatures to range from 19ºC (66ºF) to 32ºC (90ºF).

  • January sees average temperatures of between -12ºC (10ºF) and 4ºC (39ºF). Look for a cheap ticket from SFO to Seoul around that time if you like travelling in cooler conditions.

More about Seoul

  • Once you've booked your flight from San Francisco International Airport to Seoul, choose a hotel that puts you right where the action is. Make one of these options your base for exploring Seoul:

  • Bukchon Hanok Village and Gyeongbokgung Palace are just the start of the top-rated attractions to put on your Seoul itinerary. Keep the momentum going by heading to N Seoul Tower.

Explore more of South Korea

  • Seoul has its own special appeal, but there are so many other corners of South Korea waiting to be explored. About 322 kilometres southeast of Seoul, a trip to Busan will keep you on the move. Start with popular sights like Gamcheon Culture Village, Haeundae Beach and Beautiful View Busan - Diamond Bridge.

  • If you're eager to discover another corner of South Korea, head for Daegu, about 241 kilometres southeast of Seoul. Alive Aquarium Daegu, Nature Park and Seonsa Historical Park are among its highlights.

More travel options

Plan the rest of your trip from San Francisco to Seoul

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.