$353 Find Cheap Flights from San Francisco to South Korea

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Francisco to South Korea departing on 2/25. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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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 72 hours
Seoul
Incheon2 stops$642
Jeju City
Jeju City1 stop$792
Busan
Busan1 stop$816
Daegu
Daegu1 stop$1,171
Seoul
Incheon2 stops$642
Jeju City
Jeju City1 stop$792
Busan
Busan1 stop$816
Daegu
Daegu1 stop$1,171

Book Cheap San Francisco to South Korea Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Francisco to South Korea that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from San Francisco to South Korea

Thu, Mar 19 - Wed, Apr 8
China Southern Logo
12:35 am - 9:50 pm
SFO
-
ICN
29h 15m2 stops
China Southern Logo
4:45 pm - 8:30 pm
ICN
-
SFO
43h 45m2 stops
$642China Southern
Sat, Apr 11 - Sun, Apr 19
China Southern Logo
12:35 am - 9:50 pm
SFO
-
ICN
29h 15m1 stop
China Southern Logo
4:45 pm - 8:30 pm
ICN
-
SFO
43h 45m2 stops
$643China Southern
Sat, Apr 4 - Sun, Apr 12
China Southern Logo
12:35 am - 9:50 pm
SFO
-
ICN
29h 15m1 stop
China Southern Logo
4:45 pm - 8:30 pm
ICN
-
SFO
43h 45m2 stops
$645China Southern
Thu, Jan 8 - Sun, Jan 18
China Southern Logo
11:35 pm - 1:50 pm
SFO
-
ICN
45h 15m2 stops
China Southern Logo
4:15 pm - 7:40 pm
ICN
-
SFO
44h 25m2 stops
$647China Southern
Wed, Dec 31 - Sun, Jan 18
AIR PREMIA Logo
2:30 pm - 8:30 pm
SFO
-
ICN
13h 00mnonstop
AIR PREMIA Logo
6:55 pm - 12:30 pm
ICN
-
SFO
10h 35mnonstop
$649AIR PREMIA
Mon, Jan 12 - Tue, Jan 27
Cathay Pacific Logo
10:55 pm - 7:10 pm
SFO
-
CJU
27h 15m1 stop
Cathay Pacific Logo
7:55 am - 9:30 am
CJU
-
SFO
18h 35m1 stop
$792Cathay Pacific
Thu, Jan 29 - Mon, Feb 2
Cathay Pacific Logo
11:25 am - 6:40 am
SFO
-
CJU
26h 15m1 stop
Cathay Pacific Logo
8:00 pm - 9:45 am
CJU
-
SFO
30h 45m1 stop
$812Cathay Pacific
Tue, Jan 27 - Tue, Feb 3
Korean Air Logo
4:46 pm - 7:35 pm
SFO
-
PUS
33h 49m2 stops
Korean Air Logo
12:00 pm - 3:50 pm
PUS
-
SFO
20h 50m2 stops
$1,117Korean Air
Thu, Jan 29 - Mon, Feb 2
Korean Air Logo
11:40 am - 7:45 pm
SFO
-
TAE
15h 05m1 stop
Korean Air Logo
7:40 am - 9:30 am
TAE
-
SFO
18h 50m1 stop
$1,171Korean Air
Fri, Jan 9 - Sat, Jan 17
Delta Logo
11:40 am - 3:10 pm
SFO
-
PUS
34h 30m1 stop
Delta Logo
7:00 am - 9:55 pm
PUS
-
SFO
31h 55m2 stops
$1,179Delta
Booking Insights

KAYAK's insights & trends for San Francisco to South Korea flights

Get data-powered insights and trends into flights from San Francisco to South Korea to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest San Francisco to South Korea flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to South Korea from San Francisco found in the last 72 hours was to Seoul, at $594 round-trip. The most popular route is from San Francisco (SFO) to Incheon Intl Airport (ICN), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $594.

Can I save money by flying with a layover from San Francisco to South Korea?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $877, prices are generally cheapest when you fly direct.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Francisco to South Korea, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from San Francisco to South Korea is February, when tickets cost $660 (return) on average. On the other hand, the most expensive months are December and June, when the average cost of round-trip tickets is $1,279 and $1,181 respectively.

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

The average price of all round-trip flights from San Francisco to South Korea clicked on KAYAK for each day over the last 12 months.

For San Francisco to South Korea, Monday is the cheapest day to fly on average and Saturday is the most expensive. Flying from South Korea back to San Francisco, the best deals are generally found on Wednesday, with Saturday being the most expensive.

How far in advance should I book a flight from San Francisco to South Korea?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from San Francisco to South Korea, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from San Francisco to South Korea, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 1 week before departure.

Good to know

Low seasonJanuary
Cheapest flight$353
Best time to beat the crowds with an average 19% drop in price.
Most popular time to fly with an average 25% increase in price.
Flight from San Francisco to Seoul Incheon Airport

FAQs - booking South Korea flights

  • 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.

  • How does KAYAK find such low prices on flights from San Francisco to South Korea?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from San Francisco to South Korea.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from San Francisco to South Korea?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from San Francisco to South Korea is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from San Francisco to South Korea?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from San Francisco to South Korea with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from San Francisco to South Korea?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from San Francisco to South Korea up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to South Korea?

    The cheapest time of day to fly to South Korea is generally in the evening, when round-trip flights cost $754 on average. Morning departures are around 13% more expensive than evening flights, on average. The most expensive time of day to fly to South Korea is generally in the morning, which is peak travel time and where the average cost of a ticket is $852.

Top tips for finding cheap flights to South Korea

  • Looking for a cheap flight? 25% of our users found tickets from San Francisco to the following destinations at these prices or less: Incheon $387 one-way - $661 round-trip
  • 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 1184 reviews
8.7Crew
8.1Food
8.5Boarding
8.3Comfort
8.2Entertainment
Airline reviews

Never had a flight delay issue with Korean Air, that's why I always go with this airline.

10.0 ExcellentOmer, Nov 2025
MNL - ICN
Read more Korean Air reviews

Never had a flight delay issue with Korean Air, that's why I always go with this airline.

Flight crew were very attentive and made this trip a pleasure. Plus the fact that this our first time flying business class.

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.

Korean are so racist and when I ask question or directions they totally ignore me and say racist. Also they give me an rude attitude.

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 normally love Korean Air, but this trip was not great. We boarded the plan and were settling into our seats. My son and I use these leg swings and we used it on the trip over to Cambodia, but on the way back the flight attendant very rudely told us we could not use it and that it was against regulations. I asked to see the regulation, but never saw it. The food on this trip was horrible as well, Even my son's kids meal was disgusting so we didn't eat anything on the flight. Thankfully we brought snacks. Entertainment - what happened to the games?

This was an amazing flight. The crew was great. The service was great. The food provided was great.

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

Very nice staff, airplanes, and an excellent value in premium economy.

Food quality is poor. Flight attendants are very friendly and professional.

I flew on Zip Air on the way to Asia so I can compare. The two airlines are night and day. Air Premia was so amazing compared to Zip Air. I have flown Korean Air in the past and I honestly don’t know the difference between Air Premia and the “non-budget” airlines. My Air Premia flight provided me two bags whereas I had to pay for Zip Air. On my under 11 hour flight, we were provided two full meals! The flight attendants were so kind and polite.

For the price, the overall experience was what I expected. The prices were fair and competitive, the staff friendly and more responsive than other airlines, and seating spacious. The downside was food portion size, but I'll gladly pay a few dollars more for the hot noodles or other supplemental snacks, given the more affordable ticket prices. I don't mind the absence of Hollywood movie programming if that leads to inflated ticket prices. Wi-Fi worked well. In addition to spacious seating for the Wide Premiium, I'd suggest foot rests to complement the calf rests. There're problems with booking Air Premia tickets at the home website. The underlying app engine won't process non-Korean credit cards, which is a major oversight, probably hurting the company's bottom line. I can go to Kayak or a third-party website to book Air Premia tickets, but it's an awkward work-around when other airlines don't have to resort to this tactic.

As it's a budget airline it's pretty basic. But the quality of crew and plane is excellent.

First time flying with them and was pleasantly surprised. I had a premium economy seat which is very similar to some other airlines regional business class product. Seat was large, pillow was provided, huge amount of leg room, entertainment was available (only Korean shows), and lunch meal was served between Narita and Seoul. Really enjoyable and affordable

Maybe the reimbursement voucher should have been larger than a 10k won. That voucher is only for refreshments. The flight was delayed or pushed to more than 5 hours. It should be more than just 10k won and it was already past midnight. Some people or passengers like who was already there 5 hours prior to the original flight departure. 4pm** That was the only unfortunate thing about it . Other than that it was good .

5 hour delay, therefore, middle of the night arrival doesn’t help.

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.

The customer service was excellent. They noticed that our connecting flight was scheduled too closely for us to complete customs, so they changed the flight. Our initial flight was delayed, and they were able to get us on another flight, all without charging us any additional fees. I would fly them again anytime!

Better screens, it would have been nice to have more comfortable seats.

2nd major delay due to maintenance issues. 1st delay missed my connecting flight.

It was great, but my bag was not loaded onto the connecting flight. I'm currently getting it resolved. If this isn't a problem, everything else was excellent.

The aircraft was massive (A-380) and became crowded with 400+ passengers on board.

The plane hasnt left im stuck in seatle still my flight has been grounded for almost 5 hours

My luggage didn’t arrive with my flight. Flight was delayed by nearly 2 hours while we sat on the plane and I almost missed my connecting flight and subsequently missed the last train from the airport so it took me another 2 hours to get to my destination after arriving, Crew skipped me several times when offering beverages, and I couldn’t get their attention at times because they wouldn’t even make eye contact with me. They didn’t give me a form for disembarking so I had to go to the back of the line after waiting an eternity for immigration. Paid for on flight wi- fi that didn’t work for most of the flight.

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

I had a bad experience coming from America to Thailand. On my connecting flight my check in suitcase was not put on the departing aircraft, I received my suitcase 24 hours after arriving in Bangkok and when I open my luggage my hand swelled up. The next morning when I put on an outfit from my suitcase my face swelled up and became numb. My entire vacation was ruined it seems that some kind of chemical was sprayed into suitcase and ruined my clothes and got me sick. The staff at my hotel called the airline and spoke to someone and they told me to file a complaint and gave my a website to do so. I did not file a complaint I felt like it would have fell on death ears. I had to throw away my brand new vacation clothes and suitcase and I had the worst vacation ever due to this happening to me.

The staff was courteous and the flight was very smooth. It was so nice to see the captain greeting the passengers at the end of the flights.

No lunch on a x-country flight scheduled for 10:50 am departure, arrived 5+ hrs later. That requires a black box label before you pay for the tickets. Worst, when I checked in online, it's specifically said that lunch was served on his flight for economy Plus passengers.

Our flight from SFO to MSP was right on time on 11/15/2025. No delays. As we approached MSP at about 8 pm, we circled in the air until 8:40 pm so I don't call that efficient for MSP. I think the captain should announce the delay and why. (as if we all don't know that we are just circling around the area, slowing down, speeding up, slowing down.) Thank you. Marilyn Fischer

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

The flight used a B767 with a very old interior from before 2014. The entertainment system did not work at all during the flight despite attempts to reset the system. It was like they flew this route just to be competitive.

Delayed flight (1hour) plus a long layover after an overnight flight with no backup plane available.

Flight delayed for two and half hours and then canceled altogether due to mechanical issues. No mechanic onsite to fix so had to send one from LAX.

My husband upgraded our seats and I don't know if it was due to the type of planet was or if they didn't upgrade our seats. We were supposed to be in I believe comfort seats and they were just as tight as any other seat- no leg room and we are very tall people but at least it wasn't extremely cold. My husband did put in a complaint about our seating because he paid extra and if we would have known that the space and the tightness would have been the same, we just would have gotten the emergency row emergency row seats that we normally get. We love Delta but both our flights coming home we're not good. Oh I forgot to mention that on our flight to Hawaii our luggage wheels got broke and we had to purse new luggage on vacation then we never had this problem so we didn't know protocol and reported it after we got home only for them to tell is we only had 24hrs to report the damage. Not sure what was going on with Delta this vacation trip.

Crew was excellent. Comfort seats not as nice as other kinds of planes.

It was a great flight and the stewards and stewardess were all kind and accommodating!! The seats were comfortable and entertainment screen excellent!

There are 4 flights in consecutive gates with about the same departure time. Two flights were boarding at the same time. One was delayed or boarding would be happening at the same time. I am not sure what Delta and LAX need to do to have a better layout at the end of Terminal 2

from SFO-> FRA flight, AVML meal was significantly less compared to regular meal, especially no Desert, no Bread, no sides.

This was an older airplane. The cabin was constantly warm to hot throughout the 10 hour flight and there were no vents to personalize air flow. Also since it was an older plane, the material and comfort of the chairs were very uncomfortable. I left my flight with major soreness on my tailbone.

Older aircraft, no meal, only food was for purchase. Not impressed United.

Not pleasant trip cross country when the entertainment and WiFi system not working. No entertainment for entirety of route. Staff was rather nonchalant in that they dismissed the problem due to age of plane. It would have been nice to know this up front so I could have come prepared to read or download movies before boarding Coincidentally or not, there was a similar issue with the entertainment system on my previous flight I took on my fist leg of the trip. There are no seat TVs, so you must rely on the app when it works. United can do better. Also, what use it it to pay for boarding group 2 when half of the passengers are in the same line as you?

My experience on this United Airlines flight was highly uncomfortable, primarily due to two issues: Cabin Temperature: The temperature on the Boeing 737 MAX 8 was unacceptably high, feeling consistently around 80 degrees throughout the flight. This made sleeping impossible and significantly detracted from the experience. Seating Arrangement: Being stuck in a middle seat for a six-and-a-half-hour overnight flight compounded the discomfort. Moving forward, I will always purchase a seat assignment to avoid this situation.

Premium Plus is a really good idea for longer flights

Same as last comment. Food sucks. Quality. Not surprising most people have no clue about nourishment Clearly

We were in business class. the angled seats in that class do not have a real window view & the placement of the controls are bad. But we knew that. But the food options were mediocre. The taste was fine, but the size was for a child. It’s just really feels like United is skimping on everything. Even when we were in the Polaris lounge they did not have diet sodas. They said they were out no Coke zero no Diet Coke, etc. I do not think the portion of nuts they serve on the plane could get any smaller. Really a minimal service and offer for what you’re paying for in business.

We had to deboard 2 times due to maintenance issues. They changed the plane, and then we got deviated to LAX due to maibtenance issues on the other plane, had to sleep at LAX and los a full day.

From the first moment you interact with United Airlines, you can expect nothing less but extreme frustration. The baggage handler at the bag drop seems completely unbothered by the presence of customers waiting in line. No help was extended to load the baggage whatsoever. And if any of your bags is overweight by 0.01 pound they will make you re-distribute everything in your suitcase just to play power trip. When it was time to board no help was extended to customers to locate their seats. Moreover. It was a chaotic mess at the gate when it was unclear who should board first and everyone just bunched up, trying to get on the plane. I am sure the crew was doing their best to perform their jobs while being paid their wages however it shouldn’t be that hard to smile once or twice when you’re in the business if serving customers. It is a shame for the United States of America to have a flagship carrier of such low caliber. Our flight was also delayed by about an hour and a half due to further delays prior to our inbound flight. Being someone who has travelled for both business and leisure in Asia, Europe, and South America I have never experienced such poor quality of service.

Everything you need to know for your flight from San Francisco to South Korea

Information on your arrival and departure airports