SEL - SFO

$401 Find Cheap Flights from Seoul to San Francisco

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seoul to San Francisco departing on 9/14. 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 San Francisco

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seoul to San Francisco, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seoul to San Francisco, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$667
Typical prices: $1,080-$458
Air Canada
Mon 10/26Mon 1/11
ICN - SFO • 1 stop
Cheapest non-stop
$722
Typical prices: $888-$522
AIR PREMIA
Wed 10/21Wed 11/4
ICN - SFO • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
Choose Asiana's Economy Smartium for extra legroom.
At ICN, security lines move quickly, easing travel.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Cheapest • from $667 (round-trip)
Best reviews • 8.4 score
Airline reviews
Airline reviews
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Airline reviews
Airline reviews
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Top layover airports
Cheapest • Avg $411 (round-trip)
Shortest trip • 14h 23m (one-way)
Insights
Insights
Insights
Insights
Top routes
Cheapest
Most popular
Insights
Insights
Insights
Insights
When to travel
Cheapest • 48% price drop
Most popular
Good to know
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+1
+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 San Francisco!
Flight Deals
Booking Insights
Expert advice
Flight Deals

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

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

Mon, Oct 26 - Mon, Jan 11
Air Canada Logo
5:55 pm - 10:35 am
ICN
-
SFO
32h 40m
1 stop
Air Canada Logo
1:20 pm - 5:10 pm
SFO
-
ICN
34h 50m
1 stop
$667Air Canada
Sat, Oct 10 - Sun, Oct 18
Air Canada Logo
5:45 pm - 10:20 am
ICN
-
SFO
32h 35m
1 stop
Air Canada Logo
8:13 am - 4:05 pm
SFO
-
ICN
15h 52m
1 stop
$669Air Canada
Wed, May 27 - Mon, Aug 24
Air Canada Logo
5:45 pm - 12:13 pm
ICN
-
SFO
34h 28m
2 stops
Air Canada Logo
12:50 pm - 4:05 pm
SFO
-
ICN
35h 15m
2 stops
$679Air Canada
Sat, Oct 3 - Sat, Oct 10
Air Canada Logo
5:45 pm - 12:07 pm
ICN
-
SFO
34h 22m
2 stops
Air Canada Logo
12:50 pm - 4:05 pm
SFO
-
ICN
35h 15m
2 stops
$690Air Canada
Thu, Oct 1 - Mon, Nov 2
Air Canada Logo
5:45 pm - 12:07 pm
ICN
-
SFO
34h 22m
2 stops
Air Canada Logo
4:35 pm - 5:10 pm
SFO
-
ICN
31h 35m
1 stop
$692Air Canada
Sat, Oct 10 - Sun, Oct 18
Air Canada Logo
5:45 pm - 12:07 pm
ICN
-
SFO
34h 22m
2 stops
Air Canada Logo
7:35 pm - 4:05 pm
SFO
-
ICN
28h 30m
1 stop
$694Air Canada
Tue, Jun 16 - Wed, Jul 15
Multiple Airlines Logo
5:45 pm - 10:20 am
ICN
-
SFO
32h 35m
1 stop
Multiple Airlines Logo
6:35 am - 9:40 pm
SFO
-
ICN
23h 05m
2 stops
$696Multiple Airlines
Thu, Jun 25 - Thu, Aug 13
ANA Logo
12:40 pm - 7:49 pm
GMP
-
SFO
23h 09m
2 stops
ANA Logo
1:40 am - 11:05 am
SFO
-
GMP
17h 25m
1 stop
$888ANA
Thu, Jun 25 - Thu, Aug 13
ANA Logo
12:40 pm - 4:35 pm
GMP
-
SFO
19h 55m
1 stop
ANA Logo
1:40 am - 11:05 am
SFO
-
GMP
17h 25m
1 stop
$895ANA
Tue, Sep 15 - Mon, Sep 28
ANA Logo
12:40 pm - 4:30 pm
GMP
-
SFO
19h 50m
1 stop
ANA Logo
1:10 am - 11:05 am
SFO
-
GMP
17h 55m
1 stop
$898ANA
Booking Insights

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

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

How much is a round-trip flight from Seoul to San Francisco?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Seoul to San Francisco departing in October.

What is the cheapest Seoul to San Francisco flight route?

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

The cheapest return flight from Seoul to San Francisco costs $580 on the route between Incheon Intl Airport (ICN) and San Francisco (SFO). It is also the most popular route.

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

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

When flying from Seoul to San Francisco, you should consider leaving on a Wednesday and avoid Fridays if you are looking for the best rates. For your return to Seoul, you’ll find the best rates on Mondays and the most expensive ones on Saturdays.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seoul to San Francisco, 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 Seoul to San Francisco is April, where tickets cost $282 (return) on average. On the other hand, the most expensive months are July and October, where the average cost of round-trip tickets is $1,270 and $1,189 respectively.

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

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.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 2 stops layover the cheapest option at $786 on average.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Seoul to San Francisco, 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 Seoul to San Francisco, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 21 weeks before departure.

Expert advice

Expert advice for your flight from Seoul to San Francisco

 
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
John Walton

John Walton

Expert on Asiana Airlines and AIR PREMIA

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.

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.

Robert Schrader

Robert Schrader

Expert on 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 seasonMarch
Cheapest flight$401
Best time to beat the crowds but there is an average 52% increase in price.
Most popular time to fly with an average 18% increase in price.
Flight from Seoul Gimpo Intl to San Francisco

When to book flights from Seoul to San Francisco

Are your dates flexible? Find out the best times to travel from Seoul to San Francisco 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 Seoul to San Francisco

  • Does San Francisco International Airport offer shower facilities?

    Those who fly with Delta or American Airlines can use the showers available at the airline lounges. In addition, showers are available at FreshenUp at a fee, including soap, lotion, shampoo, and a hairdryer. The showers are well-maintained and are kept clean throughout.

  • Are there museums at SFO?

    Art enthusiasts arriving at San Francisco International Airport can visit the airport museum and see the various exhibits displaying art, cultural and historical exhibits. The museum is located on the arrivals level of terminal 1 and the landside and airside of the departures level of terminal 3. Additionally, there is an Aviation Museum in the main hall, landside of the international terminal. The museums have friendly staff who;ll be willing to show you around at no extra charges.

  • Where can you buy food at Seoul Incheon Airport?

    If you are looking for a place to eat at Seoul Incheon Airport, various food concessions offer grab-and-go meals and sit-down options. On the landside of terminal 1, you will find Burger King, Gongcha, Holly’s Coffee, Jamba Juice, Krispy Kreme Doughnuts and Lina’s. For those in the terminal, there are Krispy Kreme Doughnuts and Lotteria 2 on the landside; on the airside, there is Angel-in-us-Coffee, Coffee@Works, Lina’s and Starbucks.

  • Where can you relax at Seoul Incheon Airport?

    You can relax and unwind at Asiana Lounge. Take advantage of lounge services such as l conference facilities, showers, alcohol and non-alcoholic beverages, flight information monitors, TV, newspapers, and magazines. The lounge is located near gate 11 on the airside of terminal 1. To access the lounge, you can use your lounge membership program. You can also confirm with Airport staff to know if you need any documents for your pass.

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

    In the last 3 days, the lowest price for a flight from Seoul to San Francisco was $401 for a one-way ticket and $667 for a round-trip.

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

    Yes, you’ll need a passport to travel to San Francisco from Seoul.

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

    Seoul has 2 major airports: Seoul Gimpo Intl and Incheon Intl. San Francisco is the only airport in San Francisco. You’ll usually find the cheapest deals if you fly from Seoul Incheon Airport.

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

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

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

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

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

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

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

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

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

    The two airlines most popular with KAYAK users for flights from Seoul to San Francisco are Korean Air and Asiana Airlines. With an average price for the route of $899 and an overall rating of 8.4, Korean Air is the most popular choice. Asiana Airlines is also a great choice for the route, with an average price of $724 and an overall rating of 8.1.

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

    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 Seoul to San Francisco.

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

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

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

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

    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 San Francisco from Seoul 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 Seoul to San Francisco

  • Looking for a cheap flight? 25% of our users found flights on this route for $511 or less one-way and $968 or less round-trip.
  • Luggage storage services are available at Seoul Airport. CJ Logistics offers storage facilities near check-in B on the third floor, while Hanjin Express offers services near check-in N.
  • Banking services are available at Seoul Airport from various banks. These include Woori Bank landside of terminals 1 and 2, Shinhan Bank in the transportation center and west side of terminal 2 and KEB Hana Bank in the center of the public area of terminal 2.
  • Those who want to refresh at Seoul Incheon Airport (ICN) can use the showers available at the airport lounges. Lounges offering showers include Asiana lounge and Marina lounge. To access the lounges, you can use your lounge membership or pay at the door.
  • If you need to pamper yourself on arrival at San Francisco International Airport (SFO), you will find XpresSpa. The spa offers facials, manicures and pedicures. The spa has different locations, including boarding area D, airside of terminal 2, boarding area E, airside of terminal 3 and near gate G9 on the international terminal.
  • On arrival at San Francisco International Airport, you can rent a room at FreshenUp and relax before heading downtown. The rooms feature beds, Wi-Fi access, mirrors, desks and showers at an extra fee. FreshenUp is located next to the airport travel agency in the main hall of the international terminal.

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

 
See real verified KAYAK customer reviews for airlines flying from Seoul to San Francisco. 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 Seoul to San Francisco? 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 1216 reviews
8.3Comfort
8.2Entertainment
8.7Crew
8.5Boarding
8.1Food
Airline reviews

Very long flight time. Still better than a connection flight. Staff is very good at service. Vegetarian food is not very good.

8.0 ExcellentGary, Apr 2026
ICN - YYZ
Read more Korean Air reviews

Very long flight time. Still better than a connection flight. Staff is very good at service. Vegetarian food is not very good.

The business class is excellent. I loved the food, and the crew was very attentive and professional. From boarding to arrival, everything felt smooth and well-organised.

Lousy entertainment system. Crews are excellent. Meal is just mediocre.

Aircraft is pretty old. Seat is not comfortable. Meal quality is disappointing. Entertainment system is not impressive at all.

Great service and comfort level. You can have more of vegetarian food options.

It’s great, long flight and arrive safe at destination

Everything was excellent as I expected. They also had a very caring crew. I had a headache and asked a Tylenol. The crew members kept checking with me how I was doing.

I can't believe they put my wife and I in the two middle seats! It is a very long flight and we had single flyers on either side of us blocking the way to the bathroom! There's no reason to not give one of us the isle seat so we could have managed bathroom needs and snacks with convenience. So I think very poorly of Korean air to put us both in the middle, I've never had that happen before and will probably avoid this airline in the future because of this. We tried to have them change it but they didn't so you pretty much lost a customer because of it.

There could have been better spacing of the passengers, it was crowded in some parts of the plane then other while rows were empty

Plane took off on time and I had the whole row to myself!

Don't splurge for the Premium Wide Economy. They compare it to business class. This is not business class, and the seats are very uncomfortable.

For the second meal, the different food choices ran out both times so we were only offered one.

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.

Smooth sailing trip, pilots are good. Less amount of food offered but the quality is okey.

The staff hold my luggage to steel and exchange my stub, i was very disappointed.

Kayak uses scammer sites to steal money from their victims.

Customer service and attention to details. The food was good.

Felt like the oldest plane in Asiana Fleet. Screen was 5-6in only and no charging at all. Movie selection wasn't great.

When one asks for water because they are dehydrated, bring more then a sip or two in a small cup. Bring them a whole bottle.

Food could be better it was okay. Entertainment seems dated it was something but in this day and age could be a lot better.

I am thankful that I was able to fly using Asiana

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!

Very clean ,flight attendants very professional,nice , Boarding was very easy

Flew steerage class. Short on leg room unless you pay more. No window unless you pay more. Etc. United is trying to squeeze every cent from you. It doesn’t make for any loyalty.

Outstanding service, great food, friendly & efficient crew, safe & comfortable flight

Staff were not attentive, wifi did not work, cut my head in the bathroom due to the position of the soap on the sink, had blood running down my face, told staff, they had no expression no sympathy, didn't even say "sorry", they said "oh we will have a look at that" about 10 mins later the purser brought me a bandaid, still no sorry.... Shocking

The flight was delayed from take off because only one runway was operational in San Francisco.

Several missed and almost missed connections. It felt like everything was being patched together last minute without enough resources and it ended up being an extremely stressful experience that basically ruined our weekend on the west coast. What a waste.

Checking in united could not figure out my star alliance gold. Baggage did not get marked priority and didn't receive boarding passes. When got to SFO lounge personal fixed everything Immediately

Meals were poor and service rendered on return flight was mediocre as compared to the flight we took to Germany earlier where the attendants were more attentive, energetic, and mindful of passengers' needs. Thumbs up to crew of UA 58. Thumbs down to UA 59..

Flight left on time, arrived early, pleasant staff provided water, coffee, etc. access to bathrooms was reasonable and were well maintained. blankets were available, lots of entertainment options. LUGGAGE SERVICE WAS GREAT. I got my one checked bag quickly and was able to make a bus connection for a 2 hour bus ride saving me from waiting another 1.5 hours.

Wonderful in-seat entertainment with seatback screens and huge selection of quality movies. The ability to bluetooth connect headphones was amazing.

we did a return flight from Paris CDG to SFO. This trip was much better than the departing flight SFO to CDG. The food was better quality, the crew was nicer, and the interior of the plane seemed cleaner.

Flight attendants were ok. But it was a full flight.

Very disappointed with premier lounge. Food selection very poor, both coffee machines out of order. For the price you charge for an upgrade, the seats don’t fully recline, movie selection is old. Not very good value. Asian airlines are light years ahead at a more affordable price.

The stag were helpful, kind and liked the passengers. The plane was pristinely clean! Great flight!

The plane was delayed an hour. Heard from other passengers that the Vancouver connection to SFO was never on-time.

My experience was good with United too But only not so good thing was that at Calgary airport I was not given lounge access despite of flying business. Aspire lounge denied it to me, which was unfair I feel

The staff was great and made the long trip easy peasy!

The free Wi-fi for Aeroplan members was a great touch. The time passed quickly. I found the seats seemed a little closer together than I remember. Not Air Canada's fault, but we were about 20 minutes late landing because the airport was too busy. We had to circle around for a while. The boarding and disembarking went very smoothly.

I liked the behaviour of the crew members.The flight was good.

The service was good ... I wondered if the stewardess was OK though as she seemed quite sad.

Short flight so no food or entertainment. Good landing at SFO and on time. We were told no carryon luggage yet lots of people were puting bags in overhead compartments. The rules need to be made more clear. I was on the first leg of an international flight and this is the first time I could not have carryon luggage.

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

Information on your arrival and departure airports