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Cheap Flights from San Francisco to South Korea

Cheapest round-trip prices found by our users on KAYAK in the last 5 days
Seoul
Incheonnonstop$643
Jeju City
Jeju City2 stops$1,402
Busan
Busan1 stop$891
Daegu
Daegu1 stop$840
Ulsan
Ulsan3 stops$2,645
Seoul
Incheonnonstop$643
Jeju City
Jeju City2 stops$1,402
Busan
Busan1 stop$891
Daegu
Daegu1 stop$840
Ulsan
Ulsan3 stops$2,645
Booking Insights

Price, demand and travel trends for San Francisco to South Korea flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

Are flights from San Francisco to South Korea cheaper or more expensive than last year?

Fares from San Francisco to South Korea are running about the same as they were around this time last year, averaging $851 round-trip.

What are the cheapest fares from San Francisco to South Korea right now?

Here are the cheapest round-trip fares from San Francisco to South Korea on KAYAK in the last week:

• Incheon Intl (ICN) from $643
• Busan Gimhae (PUS) from $891
• Seoul Gimpo Intl (GMP) from $958
• Jeju City (CJU) from $1,402

What’s the cheapest month to fly from San Francisco to South Korea?

February is the cheapest time of year to fly, with average fares of $692. Prices are highest in June, when average flight costs increase to around $1,361.

When is the best time to book flights from San Francisco to South Korea?

Book your flights 7 weeks before your trip. KAYAK data collected over the past 12 months shows that booking in this window can save you around 11% compared to booking last-minute (within 2 weeks of departure).

Which airport in South Korea is the cheapest to fly to from San Francisco?

Based on KAYAK data from the past 12 months, the cheapest airports to fly into South Korea are:

• Incheon Intl (ICN) from $826
• Busan Gimhae (PUS) from $1,025
• Seoul Gimpo Intl (GMP) from $1,237

What’s the cheapest day to fly from San Francisco to South Korea?

Sunday tends to be the cheapest day to fly from San Francisco to South Korea, while Saturday is the most expensive. Fares run about 13% higher that day, based on the past 12 months of KAYAK data.

What's the cheapest time of day to fly from San Francisco to South Korea?

Data from the past 12 months shows it's cheapest to fly to South Korea during the evening with average prices of $745. The afternoon is the most expensive time to fly, with average prices of $927.

Key details for San Francisco to South Korea flights

Low season

January

Cheapest flight

$333
Beat the crowds with an average 63% drop in travelers.
The most popular month to fly with an average 43% increase in travelers.
One-way flight from San Francisco to Incheon Intl Airport

Flights from San Francisco to South Korea: the best tips from KAYAK users

Insights shared by verified travelers who flew the route from San Francisco to South Korea 
Verified travelerFlew with Asiana Airlines-Mar 2026
Walk straight to arrivals upon getting to Incheon, and take their airport bus route if convenient.
DexterFlew with Asiana Airlines-Feb 2026
If traveling with toddlers or picky eaters, make sure you feed or buy food your kids will eat. Leaving San Francisco my kids didn’t eat any of the food coming from the SFO airport.

Your San Francisco to South Korea flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • Is now a good time to book a flight from San Francisco to South Korea?

    Yes. Fares from San Francisco to South Korea are low right now. As a rule of thumb, a round-trip under $696 (cheaper than most fares this year) is a good deal, so if you spot one at or below that, it's a good time to book.

  • How much should I budget for a flight from San Francisco to South Korea?

    Over the past 12 months, round-trip fares from San Francisco to South Korea have ranged from $696 to $1,198.

  • What are the main airports serving South Korea?

    South Korea has 4 airports. The three busiest are Incheon Intl (ICN) (98% of arrivals), Busan Gimhae (PUS) (2%) and Jeju City (CJU) (0%).

  • What airlines fly nonstop from San Francisco to South Korea?

    Based on the flight schedule for the next 3 months, 4 airlines offer nonstop flights on this route:

    • United Airlines
    • Korean Air
    • Asiana Airlines
    • AIR PREMIA

  • Where in South Korea can I fly nonstop from San Francisco?

    Based on the flight schedule for the next 3 months, you can only fly nonstop from San Francisco to Seoul.

  • Is it cheaper to fly with a layover from San Francisco to South Korea?

    Yes. Nonstop flights from San Francisco to South Korea average $815 over the past 12 months, but flights with a layover can cost less. The most affordable connecting airports are:

    • Beijing Capital (PEK) from $645
    • Newark (EWR) from $692
    • Manila Ninoy Aquino Intl (MNL) from $713

  • How long is a flight from San Francisco to South Korea?

    Flights from San Francisco to South Korea take 12h 56m on average.

  • How often are flights from San Francisco to South Korea delayed and what's the average delay?

    15% of flights on this route are delayed by at least 15 minutes. The average delay is 3h 35m.

  • Which cabin classes are available on flights from San Francisco to South Korea?

    On flights from San Francisco to South Korea you can book Economy Class, Premium Economy Class, Business Class or First Class.

  • What are some popular landmarks in South Korea?

    KAYAK travelers' favorite landmarks in South Korea include:

    • Haeundae Beach
    • Gwangalli Beach
    • Goyang Stadium
    • Dongdaemun Market

  • What are the earliest and latest flights from San Francisco to South Korea?

    The earliest nonstop flight from San Francisco to South Korea departs at 10:20 am and the latest departs at 11:45 pm. Nonstop flights take about 12h 56m.

  • Are there nonstop flights from SFO to South Korea?

    Yes. About four daily nonstop flights service the SFO to South Korea route. The direct flights on this route take about 12h 40min, but the flight duration can vary depending on the airline and the departure time. Due to the limited schedule of nonstop flights from San Francisco to South Korea, it is essential to book your flight in advance. The airlines operating nonstop flights from San Francisco to South Korea are American Airlines, Asiana Airlines, and Korean Air.

  • What is the best airport to fly into in South Korea from San Francisco?

    Incheon International Airport (ICN) is the primary international gateway to South Korea. Booking your flight to ICN is best, as it is the hub for direct flights from SFO and places you only a few minutes from the country’s capital. This airport also services the most frequent flights from San Francisco, offering you options and flexibility. Gimpo International Airport (GMP) is smaller, nestled closer to the capital city, and you will spend the least amount of time in airport checks and clearance there because it is relatively less busy.

  • What public transportation options are available from ICN to the Seoul city center?

    ICN boasts efficient public transportation connections to the city center, featuring taxis, buses, and trains. You can catch the intercity bus service from the transit center to downtown Seoul or hop into local bus lines 111 and 303. You can take a taxi to the city center from the taxi stands located right at the exit of the Arrivals hall. The Airport Railroad service offers frequent direct connections to Seoul Station, with nonstop express options available.

  • What services are available for travelers with limited mobility at ICN?

    ICN features accessible amenities, free wheelchairs and strollers, wheelchair lifts, help-phone service, pickup services, and special assistance services for travelers with restricted mobility. If you need any special assistance, be sure to inform your airline in advance.

Your guide to booking San Francisco to South Korea flights

Get tips on when to book, when to fly and what to know before your trip.
  • If you can plan ahead, the sweet spot for booking your flight is 7 weeks before your trip. KAYAK data shows fares in this window are around 11% lower than last-minute bookings (made within 2 weeks of departure). Not ready to commit? Set a Price Alert and we'll let you know when prices change.
  • If your travel dates are flexible, book your trip for February when flights are typically cheapest and avoid June when prices are at their highest.
  • Flying on Sunday is usually the cheapest. Flights on Saturday cost about 13% more on average, so being flexible with your travel dates could help you save.
  • If arriving on time matters more than price, consider flying with one of the most punctual airlines on this route: Asiana Airlines, AIR PREMIA, Korean Air and United Airlines.
  • If you're looking to save, Incheon Intl (ICN) is the cheapest airport to fly into from San Francisco. If you have onward travel, don't forget to factor in the cost of your journey by train, bus or domestic flight.
  • Start your trip in Seoul, which is the most popular destination in South Korea. From there, it's easy to continue on to other popular destinations such as Busan, Incheon and Jeju City.
  • If you want the shortest trip, choose the San Francisco to South Korea nonstop route. If you'd rather save money, the route via Beijing Capital (PEK) is usually the cheapest.
  • US citizens need a valid passport to enter South Korea. As long as you have a valid government-issued passport, you can visit South Korea without a visa for a stay of up to 90 days. However, acquiring a visa or Korean Electronic Travel Authorization (K-ETA) in advance can make entry easier.
  • San Francisco International Airport (SFO) features four terminals, with the International Terminal servicing flights to South Korea. The airport terminals form a loop around the parking area, and walking through the loop can take a few minutes. However, you can also use the AirTrain if you don’t want to walk.
  • If you are stuck at SFO during a layover, you can beat boredom with various activities at the airport. Watch the aircraft take off at the outdoor terrace at the International Terminal, explore intriguing exhibits at the airport museums within the terminal building, or enjoy a self-guided tour of the airport.
  • You can access medical treatment at the SFO Medical Clinic before embarking on your flight to South Korea. The medical clinic is located within the International Terminal Main Hall.
  • Should you wish to grab a bite before your long-haul flight to South Korea, you can visit the airport food concessions. SFO features several eateries operating with varying schedules, offering you many options.

Reviews of the top 5 airlines serving from San Francisco to South Korea

 
Need help choosing which airline to fly with from San Francisco to South Korea? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.4
Korean AirOverall score based on 1217 reviews
8.3Comfort
8.2Entertainment
8.7Crew
8.5Boarding
8.1Food
Airline reviews

The boarding process was efficient and quick. The seats were comfortable. The food was good. The service was excellent. We had a lovely flight from Seattle on Korean air

10.0 ExcellentVivian, Nov 2025
Read more Korean Air reviews

The boarding process was efficient and quick. The seats were comfortable. The food was good. The service was excellent. We had a lovely flight from Seattle on Korean air

Flight crew was fantastic. The aircraft was meticulously cleaned at all times. The crew was continuously checking to see if the passengers were ok.

It was good, I liked the self-serve snacks but it was a little difficult to get the alcohol, which is understandable since I wouldn't want kids sneaking it.

Friendly flight attendants and gate agents. Very clean plane and food was good!

I was unable to select decent seats, and so I was stuck in the middle seat because it was selected for me

There was a lot of partial tv shows but not enough to last the flight. The food was incredible! The crew were so helpful and patient. Lots more space than what I usually get on an international flight. Very comfortable!

Stingy on the drinks - 15 hour direct flight and could barely get attention for some water

long flights are difficult but the crew and amenities made it a very good experience

Good. Obviously there is a slightly condescending attitude of all American workers towards their customers but other than that all good.

They destroyed my Michael Kors Carryon luggage, they didn’t announce that only check in the carry on and when we get inside a couple of room to put the carry on bag. I was disappointed and sad because of the damaged of my luggage. They should replace it or fixed it.

Comfortable seats but I had a hard time with the reclining pull.

Seating was good in the economy with plenty of leg room. The seat cushions were a little firm though, especially for such a long flight. All meals were Korean as would be expected. The food was typical airline quality. Edible, but not something you would recommend to friends. Inflight entertainment was also all Korean but Korean tv and movies are made well and you can find something to watch. Just be prepared to read subtitles. Overall it was a good flight, especially for the price.

The person in front of me was rude. He may came from some communism countries and don’t care of other people. No common manner and sense between human being.

The staff were very friendly, and the flight was comfortable. That said, there was no option to specify dietary restrictions before the flight, so you may need to bring your own food. Also, there was no wifi available for the flight, though there is an in-flight entertainment console with many Korean-language shows and movies.

The legroom was great for a 5’11” person. The 11 hour direct flight had two meal services included in the ticket price which was less than other airline’s cost without food service (Canada air)from sfo to incheon. The airline is focused towards Korean nationals with the onboard entertainment selection of Korean movies but English subtitles were available. Overall premia air is a great option to fly from the US to Korea.

Plane and service were great. The entertainment is only for Koreans. Wish there were vegetarian options for food. All in all pleasantly surprised. Economy premium was quite good.

Some favorite food ran out of service and I have to eat what was left available. Also I had to drink cold red wind! Why could not have been kept in room temperature?

Plan was very clean and very comfortable seat Very smooth flight without any engine noises.

The leg space is generous at 35 inches. The food is quite limited with one breakfast, one lunch and 1 snack throughout the 14 hr trip. The entrainment state is big fallout with only a handful of movies, all Korean. Quite a few of them are not for kids for sure. And the onboard paid wifi is not working, not sure whether it is just for this flt, which prevents you from entertaining yourself. The flt attendant speaks little language other than Korean. The biggest drawback with this new airline is that it does not have any partnership with other airlines so if you are connecting in Seoul, your luggage is not transferred. And you have to get into the custom, pick it up then check in with other airline, which requires very long layover to manage the connection. We planned 3.5 hr layover, with flt delayed 2.5 hrs, we missed the connection flt with one hr left in between. In summary, if no connection is needed for your itinerary and you are Korean, air premia is a good option with competitive price. Otherwise, go with one of the major carriers.

Food is very little, we were hungry again afterward. 💺 is very small not comfortable. Very helpful staffs at check in counter.

I’d have rated Asiana good except an unfortunate incident in which I felt one of your employee didn’t really help us. During the first leg of the trip, the flight from LAX to ICN, I left my backpack on the plane. When I realized, I reported to one of your employee who promised me that it’d be taken care of, that my backpack will be there at HCM city. When we arrived there, HCM people had no idea and my backpack was still at Incheon airport who denied any knowledge whatsoever. I was left in the cold and felt helpless. I was very disappointed. I’d like someone to look into this and let me know.

It was my first time flying Asiana but i was very pleased with how professional and understanding the flight crew is with little kids. One flight attendant held my 3 year old daughter’s hand guiding her to the exit after landing while i had my hands full with luggage and my infant. She was very helpful.

Love flying Asiana. Been using it for over a decade now.

The beefsteak on the lunch menu was excellent! I usually do not eat airplane food. I loved it.

For the most part, it was an enjoyable experience. It's the 2nd half of the journey was a bit uncomfortable. It was on a noticable smaller plane compared to the previous one.

Only process that my luggage didn’t make it to my destination because of short connection but I understand

I like the food, the crew and everything.!!! Except for the delay in our flight.

Check in agent very rude, no greeting “Hi” or “ Thank you. Doesn’t direct where to go for gate info. In flight crew staff not friendly. Very disappointed ☹️

My favorite airline to fly across the Pacific. The Business class lounge is fantastic, the wonderful flight attendants are helpful and professional. Great comfort while flying.

I recently had the pleasure of flying with Asiana Airlines, and I can confidently say it was an outstanding experience. From the moment I checked in, the staff demonstrated exceptional professionalism and warmth. The boarding process was seamless and well-organized, ensuring a stress-free start to my journey. Onboard, the flight attendants were attentive, courteous, and went above and beyond to cater to passengers' needs. The seats were comfortable, with ample legroom, and the in-flight entertainment options were diverse and up-to-date, making the flight enjoyable and relaxing. Additionally, the meals served were delicious and well-presented, reflecting a high standard of culinary quality. The airline's commitment to safety was evident throughout the flight, with clear announcements and a reassuring presence from the crew. Overall, Asiana Airlines provided a top-tier travel experience, and I would highly recommend them to anyone seeking comfort, quality service, and a memorable journey.

WiFi was a major problem and if it does not work on a 4 hour flight then that lowers the overall experience

The Airline Attendant found us in flight and moved us to seats in the front of economy due to the short time we would have to make our connecting flight. We really appreciated it.

Carmen was an absolute delight on the flight staff! Everyone was lovely and made it a very pleasant flight.

Internet connectivity still seems to be touchy on these flights, making it difficult to rely on it for getting work done.

My son’s suitcase was left behind at SFO and did not make the flight.

Crew was absolutely fantastic and we’re so welcoming and friendly ❤️

Flight delayed four separate times. I’m now one hour hours late to landing.

The plane was an older model, so it wasn’t as comfortable as others. The flight attendants were not helpful during onboarding. It was a full flight so there was chaos finding space for baggage.

Awesome! On time flight, early arrival, and a complimentary upgrade!

Delta’s staff is unmatched. From the gate agents, to the pilots, to the flight attendants… all top of the industry.

Better management of the boarding process. Is there any way you could forward all the window seats first? That's the Way Reno Air used to do it, and they had the fastest boarding in the industry!

overall a very good travel experience - left on time, arrived early. Mostly a smooth flight. Polaris seats were excellent, very good service and nice food with options.

Flight was over two hours late, but they notified us early in the morning. They ended up changing planes the food on board that was extremely mediocre and we were in premier class.

Food was very bad Crew was not so welcoming. Chairs was so uncomfortable

The business class had to wait to board last. Unacceptable

The air hostess was excellent. I have taken so many flight domestic and international, this is the first time the air hostess was so caring. She was a delight

We paid extra to check our bags ($90*2=$180) but our luggage remained in Frankfurt. VERY DISAPPOINTED as we were promised that our luggage would go to our destination. We had to pay 90€ to take a taxi back to the airport in Split the next day to get our bags so we would not miss our next step on our trip. We think we should be reimbursed for our checked bags. How can we coordinate this?

This was an auto-rebook due to being delayed from an earlier UA connecting flight. The boarding was fine, but they sat me in a middle seat when my original booking was a window seat. Overall, the flight was fine as it still got me to my final destination.

Sitting in coach even in the larger leg space is extremely uncomfortable and the staff pay no attention.

United Airline crews were very friendly and very attentive. 12 hours flight was gone like in a shorter one.

More options for your flight from San Francisco to South Korea

Complete your trip to South Korea with a hotel stay or car rental