SFO - SEL

$366 Find Cheap Flights from San Francisco to Seoul

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 Seoul departing on 7/27. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Seoul

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Francisco to Seoul.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Francisco to Seoul.
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Everything you should know

Cheapest round-trip
$661
Overall average: $808
United Airlines
Mon 4/27Mon 5/11
SFO - ICN • Non-stop
Cheapest one-way
$366
Typical prices: $360-$633
ZIPAIR
Mon 7/27
SFO - ICN • 1 stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
Korean Air offers complimentary meals in economy.
Air Premia provides 33-35 inches of legroom in economy.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
United Airlines
Cheapest • from $661 (round-trip)
Korean Air
Best reviews • 8.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Top layover airports
Tokyo (NRT)
Cheapest • Avg $718 (round-trip)
Seattle (SEA)
Shortest trip • 16h 30m (one-way)
Insights
Insights
Insights
Insights
Top routes
SFO
-
ICN
Cheapest
SFO
-
ICN
Most popular
Insights
Insights
Insights
Insights
When to travel
November
Cheapest • 17% price drop
June
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Seoul!
Flight Deals
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Expert advice
Flight Deals

Cheap Flights from San Francisco to Seoul (SFO-SEL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Francisco to Seoul 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 Seoul

Mon, Apr 27 - Mon, May 11
United Airlines Logo
11:40 pm - 4:20 am
SFO
-
ICN
12h 40mnonstop
United Airlines Logo
4:50 pm - 11:35 am
ICN
-
SFO
10h 45mnonstop
$661United Airlines
Wed, Apr 15 - Tue, Apr 28
United Airlines Logo
11:40 pm - 4:20 am
SFO
-
ICN
12h 40mnonstop
United Airlines Logo
11:30 am - 6:15 am
ICN
-
SFO
10h 45mnonstop
$662United Airlines
Thu, Apr 9 - Thu, Apr 16
United Airlines Logo
11:40 pm - 4:20 am
SFO
-
ICN
12h 40mnonstop
United Airlines Logo
4:50 pm - 11:35 am
ICN
-
SFO
10h 45mnonstop
$663United Airlines
Sun, Jun 28 - Wed, Sep 2
Alaska Airlines Logo
6:00 am - 5:30 pm
SFO
-
ICN
19h 30m
1 stop
Alaska Airlines Logo
7:35 pm - 6:56 pm
ICN
-
SFO
15h 21m
1 stop
$664Alaska Airlines
Thu, Apr 16 - Thu, Apr 30
United Airlines Logo
10:20 am - 3:00 pm
SFO
-
ICN
12h 40mnonstop
United Airlines Logo
4:50 pm - 11:35 am
ICN
-
SFO
10h 45mnonstop
$665United Airlines
Wed, Apr 8 - Wed, Apr 22
Multiple Airlines Logo
1:00 pm - 12:25 am
SFO
-
ICN
19h 25m
1 stop
Multiple Airlines Logo
6:00 pm - 1:00 pm
ICN
-
SFO
11h 00mnonstop
$666Multiple Airlines
Sun, Apr 5 - Thu, Apr 16
Multiple Airlines Logo
8:59 pm - 6:35 pm
SFO
-
ICN
29h 36m
1 stop
Multiple Airlines Logo
8:35 pm - 10:27 pm
ICN
-
SFO
17h 52m
1 stop
$667Multiple Airlines
Mon, Aug 17 - Thu, Sep 17
China Southern Logo
12:35 am - 9:50 pm
SFO
-
ICN
29h 15m
2 stops
China Southern Logo
9:40 am - 8:40 pm
ICN
-
SFO
27h 00m
2 stops
$668China Southern
Sat, Aug 15 - Tue, Sep 15
Philippine Airlines Logo
12:30 am - 7:15 pm
SFO
-
ICN
26h 45m
1 stop
Philippine Airlines Logo
8:30 pm - 9:10 pm
ICN
-
SFO
40h 40m
1 stop
$669Philippine Airlines
Mon, Mar 16 - Wed, Mar 25
China Eastern Logo
1:00 pm - 10:55 am
SFO
-
ICN
29h 55m
2 stops
China Eastern Logo
8:50 pm - 10:00 am
ICN
-
SFO
29h 10m
2 stops
$670China Eastern
Booking Insights

KAYAK's insights & trends for San Francisco to Seoul flights

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

What is the cheapest San Francisco to Seoul flight route?

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

The cheapest return flight from San Francisco to Seoul costs $602 on the route between San Francisco (SFO) and Incheon Intl Airport (ICN). It is also the most popular route.

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

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

For San Francisco to Seoul, Sunday is the cheapest day to fly on average and Saturday is the most expensive. Flying from Seoul back to San Francisco, the best deals are generally found on Tuesday, with Saturday being the most expensive.

What is the cheapest month to fly from San Francisco to Seoul?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Francisco to Seoul, 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 Seoul is November, where tickets cost $661 (return) on average. On the other hand, the most expensive months are June and December, where the average cost of round-trip tickets is $1,117 and $1,062 respectively.

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

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 $816, prices are generally cheapest when you fly direct.

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

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 Seoul, 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 Seoul, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 1 week before departure.

Expert advice

Expert advice for your flight from San Francisco to Seoul

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on United Airlines

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

John Walton

John Walton

Expert on AIR PREMIA and Asiana Airlines

Independent aviation journalist John Walton took his first flight at eight weeks old and hasn’t stopped travelling since. A world-renowned expert in airlines and the passenger experience, he writes in depth on aviation, is a resident expert on travel in Japan and France, and offers a uniquely queer perspective on travelling the world.

Robert Schrader

Robert Schrader

Expert on Korean Air and ICN

One of the web's original travel bloggers, Robert launched his first site Leave Your Daily Hell in 2009. Since then, he's expanded into destination niche sites (one each for Japan, Thailand and Taiwan), in addition to having written for the inflight magazines of Singapore Airlines and Korean Air. Overall, he's visited nearly 100 countries, and flies business as often as possible.

Blane Bachelor

Blane Bachelor

Expert on SFO

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Good to know

Low seasonJanuary
Cheapest flight$366
Best time to beat the crowds with an average 10% drop in price.
Most popular time to fly with an average 40% increase in price.
Flight from San Francisco to Seoul Incheon Airport

When to book flights from San Francisco to Seoul

Are your dates flexible? Find out the best times to travel from San Francisco to Seoul based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from San Francisco to Seoul

  • What are the pet policies of Korean Air for passengers flying from San Francisco to Seoul?

    Korean Air has specific pet policies for passengers flying from San Francisco to Seoul. They allow pets to be transported as checked baggage or as cargo. For checked baggage, the maximum weight limit for pets and carriers combined is generally 70 lbs.

  • What are the public transportation options available from Incheon International Airport to the city center of Seoul?

    From Incheon International Airport, several public transportation options are available to reach the city center of Seoul. These include the Airport Railroad Express (AREX), which provides direct train service to major city destinations, and the airport limousine buses that offer convenient and affordable transportation to various locations within Seoul. Taxis and ride-hailing services are also available for a more personalized and convenient option.

  • What are the specific baggage policies for passengers traveling from San Francisco to Seoul on Korean Air?

    Korean Air's baggage policies for passengers flying from San Francisco to Seoul typically include a checked baggage allowance based on the ticket class. For most economy class passengers, the allowance is one checked bag weighing up to 50 lbs. Business class passengers usually have an allowance of two checked bags, each weighing up to 70 lbs.

  • What entertainment options does Korean Air have for passengers flying from San Francisco to Seoul?

    Korean Air offers a range of entertainment options for passengers flying from San Francisco to Seoul. Travelers can enjoy a wide selection of movies, TV shows, and music through the in-flight entertainment system. The system includes individual seat screens with a user-friendly interface. Additionally, Korean Air provides an assortment of gaming options to keep passengers entertained during the flight.

  • What is the cheapest flight from San Francisco to Seoul?

    In the last 3 days, the lowest price for a flight from San Francisco to Seoul was $368 for a one-way ticket and $661 for a round-trip.

  • Do I need a passport to fly between San Francisco and Seoul?

    Yes

  • Which airports will I be using when flying from San Francisco to Seoul?

    San Francisco is served by only 1 airport and there are 2 airports in Seoul. You will leave San Francisco from San Francisco and you will be arriving in Seoul at one of these airports: Seoul Gimpo Intl or Incheon Intl.

  • Which airlines offer Wi-Fi service onboard planes from San Francisco to Seoul?

    Asiana Airlines, American Airlines, Thai Airways, and Singapore Airlines offer inflight Wi-Fi service on the San Francisco to Seoul flight route.

  • Which aircraft models fly most regularly from San Francisco to Seoul?

    The Boeing 787-9 Dreamliner is the aircraft model that flies most regularly on the San Francisco to Seoul flight route.

  • Which airline alliances offer flights from San Francisco to Seoul?

    oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between San Francisco and Seoul, with oneworld being the most commonly used for this route.

  • On which days can I fly direct from San Francisco to Seoul?

    There are nonstop flights from San Francisco to Seoul on a daily basis.

  • Which is the best airline for flights from San Francisco to Seoul, Korean Air or AIR PREMIA?

    The two airlines most popular with KAYAK users for flights from San Francisco to Seoul are Korean Air and AIR PREMIA. With an average price for the route of $903 and an overall rating of 8.4, Korean Air is the most popular choice. AIR PREMIA is also a great choice for the route, with an average price of $672 and an overall rating of 8.2.

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

    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 Seoul.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seoul from San Francisco 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 Seoul?

    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 to Seoul with an airline and back to San Francisco with another airline.

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

    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 to Seoul from San Francisco up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from San Francisco to Seoul

  • Looking for a cheap flight? 25% of our users found flights on this route for $367 or less one-way and $678 or less round-trip.
  • Common layover destinations for flights from San Francisco to Seoul depend on the airline and routing. For example, Korean Air often has layovers in its hub at Incheon International Airport, Tokyo, Beijing, or Hong Kong.
  • Both San Francisco International Airport (SFO) and Incheon International Airport (ICN) have disability policies in place to assist passengers with disabilities. These policies may include wheelchair assistance, accessible facilities, designated assistance points, and trained staff to provide support and guidance. Passengers with disabilities are encouraged to contact the airports in advance to arrange for any necessary assistance and to ensure a smooth travel experience.
  • San Francisco International Airport (SFO) offers several lounges for passengers flying from San Francisco to Seoul. Some of the notable lounges include the United Polaris Lounge, which provides an upscale and luxurious environment for United Airlines' business and first-class passengers. The Cathay Pacific Lounge offers a comfortable setting with a variety of amenities.
  • U.S. citizens traveling from San Francisco to Seoul typically require a valid passport and a visa to enter South Korea. The type of visa and application process may vary based on the purpose and duration of the trip.
  • Delta Air Lines has specific policies in place for children traveling on flights from San Francisco to Seoul. Infants under the age of two can travel on an adult's lap or have the option to purchase a separate seat with a child fare. Delta also offers discounted fares for children between the ages of 2 and 11.

Reviews of the top 5 airlines serving from San Francisco to Seoul

 
See real verified KAYAK customer reviews for airlines flying from San Francisco to Seoul. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from San Francisco to Seoul? 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 1197 reviews
8.5Boarding
8.2Entertainment
8.3Comfort
8.1Food
8.7Crew
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

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 crews were friendly, professional and courteous. Checking in was easy and smooth. The best part is, as we all know, 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.

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 .

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.

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.

Flight was delayed by 3-hours and their fix was… complimentary pretzels.

The crew, and fellow passengers, were super gracious and kind. There seemed to be plenty of bin space even though the plane was full. It’s nice to get a glass of wine with dinner in Premiere seating, and there was a lot of food.

Everything I mentioned earlier - the airbus was more comfortable indeed and the experience was further enhanced.

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!

It was nt delta. It was aeromexo. Service was awful. They served a very small drink and NO snack for a 3hr and 35min flight. Then for the first 30 min of the flight is was talk and talk over head interruption the movie/ show i picked to watch.

I was given middle seat on this flight and prior Boston to Seoul flight That is a problem for long flights, Kayak system did not give me a change to select my seats and assigned me middle seats regardless of my elevated status in Delta. This needs immediate attention.

Delta One is extraordinary. I fly business when somebody hires me. I just wonder why there is such a chasm between business class and the insanely inhumane and nonsensical coach. The seats are not large enough to fit even my tiny wife. We fly 10% of what we did because we don’t want to pay 5-10 k but for $400 it’s unbearable. It seems like the accountants took over and made stupid decisions. Screw in 20 extra seats and make it so unbearable that people fly 90% less. Just put the damn price up and put some proper chairs in. But business, yay.

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

A 12 hour flight during the day with one real meal service - are you kidding? Also the breakfast was one of the worst and not what was listed

Seats are uncomfortable. This has been a trend in the industry for decades. Trying to fit more seats on each plane to increase profits at the expense of the passenger.

Staff were good. My seat was in need of repair, but for a short flight was not problematic. Usual basic snack and drink setup that you'll find on any US carrier. Over, a decent, basic flight.

Flight delayed for more than 16 hrs and no effort was spent to provide an alternate

We had turbulence ever 1/2 hr or so and the captains announcements were SOOOO LOUD

it was a very short flight so my expectations were low.

Entertainment kept turning itself off. Gave up on watching a movie.

Very disappointing given gate agent behavior. Filed a formal complaint with United.

Terrible. No customer service, no food, no drinks on a 6 hour premier economy booking.

The flight crew where really good. Better then the crew from BNE to SFO

Food should be changed in menu Many muslims travels in this airlime they need to add one Halal meal

Everything you need to know for your flight from San Francisco to Seoul

Information on your arrival and departure airports