$491 Find Cheap Flights from South Korea 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 to San Francisco departing on 9/25. 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

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 for flights 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 for flights to San Francisco, as well as popular online travel agencies
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Flight Deals

Cheap Flights from South Korea to San Francisco

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

Mon, Aug 17 - Sun, Aug 23
Philippine Airlines Logo
8:30 pm - 9:10 pm
ICN
-
SFO
40h 40m
1 stop
Philippine Airlines Logo
12:30 am - 7:15 pm
SFO
-
ICN
26h 45m
1 stop
$783Philippine Airlines
Mon, Oct 5 - Thu, Feb 4
Philippine Airlines Logo
7:20 am - 9:10 pm
ICN
-
SFO
29h 50m
1 stop
Philippine Airlines Logo
12:30 am - 7:15 pm
SFO
-
ICN
25h 45m
1 stop
$784Philippine Airlines
Wed, Oct 21 - Wed, Nov 25
Multiple Airlines Logo
12:55 pm - 2:45 pm
ICN
-
SFO
17h 50m
1 stop
Multiple Airlines Logo
2:30 pm - 8:30 pm
SFO
-
ICN
13h 00mnonstop
$789Multiple Airlines
Mon, Sep 7 - Mon, Sep 14
Multiple Airlines Logo
8:30 pm - 9:10 pm
ICN
-
SFO
40h 40m
1 stop
Multiple Airlines Logo
5:00 pm - 9:40 pm
SFO
-
ICN
12h 40mnonstop
$793Multiple Airlines
Sat, Aug 22 - Sat, Aug 29
Multiple Airlines Logo
8:30 pm - 9:10 pm
ICN
-
SFO
40h 40m
1 stop
Multiple Airlines Logo
3:30 pm - 8:10 pm
SFO
-
ICN
12h 40mnonstop
$794Multiple Airlines
Wed, Sep 16 - Sun, Sep 20
AIR PREMIA Logo
7:15 pm - 2:15 pm
ICN
-
SFO
11h 00mnonstop
AIR PREMIA Logo
5:00 pm - 9:40 pm
SFO
-
ICN
12h 40mnonstop
$808AIR PREMIA
Wed, Sep 9 - Mon, Sep 14
China Eastern Logo
12:00 pm - 9:05 am
GMP
-
SFO
37h 05m
1 stop
China Eastern Logo
12:00 pm - 11:00 am
SFO
-
GMP
31h 00m
1 stop
$1,034China Eastern
Fri, Nov 20 - Tue, Nov 24
Korean Air Logo
10:25 am - 9:30 am
PUS
-
SFO
16h 05m
1 stop
Korean Air Logo
11:40 am - 8:45 pm
SFO
-
PUS
16h 05m
1 stop
$1,119Korean Air
Fri, Nov 20 - Tue, Nov 24
Korean Air Logo
10:25 am - 9:30 am
PUS
-
SFO
16h 05m
1 stop
Korean Air Logo
11:40 am - 8:45 pm
SFO
-
PUS
16h 05m
1 stop
$1,120Korean Air
Sun, Jul 12 - Mon, Jul 13
China Eastern Logo
8:50 pm - 9:05 am
GMP
-
SFO
28h 15m
1 stop
China Eastern Logo
12:00 pm - 11:00 am
SFO
-
GMP
31h 00m
1 stop
$1,146China Eastern
Booking Insights

KAYAK's insights & trends for flights to San Francisco

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

What is the cheapest flight to San Francisco?

These are the best round-trip prices found by users searching on KAYAK in the last 5 days.

In the last 5 days, the cheapest flight deal to San Francisco was found on the route from Incheon, at $783 return. The most popular connection is from Seoul to San Francisco and KAYAK users have found round-trip deals for as low as $783 in the last 5 days.

What is the cheapest day to fly to San Francisco?

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

Based on KAYAK data, the cheapest day to fly to San Francisco is Tuesday where round-trip tickets can be as cheap as $656. On the other hand, the most expensive day to fly is Friday, where round-trip prices are $829 on average.

What is the cheapest month to fly to San Francisco?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights 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 to San Francisco is April, where tickets cost $282 on average for return flights. On the other hand, the most expensive months are October and February, where the average cost of tickets from South Korea is $1,181 and $1,008 respectively. For one-way flights, the best month to travel is March with an average price of $215.

What is the cheapest time of day to fly to San Francisco?

The average price for all round-trip flights to San Francisco depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to San Francisco is generally in the afternoon, when round-trip flights cost $492 on average. The most expensive time of day to fly to San Francisco is generally in the morning, which is peak travel time and where the average cost of a ticket is $762.

What is a good deal for flights to San Francisco?

If you’re looking for cheap airfare to San Francisco, 25% of our users found tickets to San Francisco for the following prices or less: From Incheon Intl Airport $896 round-trip.

How far in advance should I book a flight 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 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, you should book around 2 weeks before departure, which saves you about 5% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 21 weeks before departure.

Good to know

Low seasonMarch
Cheapest flight$491
Best time to beat the crowds with an average 14% drop in price.
Most popular time to fly with an average 1% increase in price.
Flight from Seoul Incheon Airport to San Francisco

FAQs - booking San Francisco flights

  • What is the cheapest flight to San Francisco?

    In the last 5 days, the cheapest flight deal to San Francisco was found on the route from Incheon, at $783 return. The most popular connection is from Seoul to San Francisco and KAYAK users have found round-trip deals for as low as $783 in the last 5 days.

  • How far is San Francisco Airport from central San Francisco?

    There are 11 miles between San Francisco city center and San Francisco Airport.

  • What is the name of San Francisco’s airport?

    When flying to San Francisco, you'll arrive at San Francisco Airport (SFO). The airport is also known as San Francisco or San Francisco Intl.

  • How much is a flight to San Francisco?

    On average, a flight to San Francisco costs $869. The cheapest price found on KAYAK in the last 2 weeks cost $520 and departed from Incheon Intl Airport.

  • How does KAYAK find such low prices on flights 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 to San Francisco.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to 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 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 with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight 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 up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights to San Francisco

  • Looking for a cheap flight? 25% of our users found flights on this route for $582 or less one-way and $896 or less round-trip.
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest San Francisco flight deals.

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

 
See real verified KAYAK customer reviews for airlines flying to San Francisco. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from South Korea to San Francisco. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with 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 1218 reviews
8.5Boarding
8.7Crew
8.2Entertainment
8.3Comfort
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.

AAAAHHHH... It was shocking in a very positive way, the attention to detail, the courtesy, the manners of all personnel on board, the constant honest smiling. You can see and feel they take pride in all they do no matter how trivial. The plane in general was very comfortable. I can't wait to do it again

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.

They were trying to get people to check luggage because the over head compartments were full but when we boarded there were lots of empty places that people could have put the luggage.

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.

Reasonable fair, good service, in sum, I am very happy!

Courteous crew and effective service on-board. Good leg room. Areas for improvement: 1. Limited menu meal menu options. During checking there was no means provided to select meal option. On our return flight the first meal had Pork and Beef options only. Fortunately the second meal had Chicken as an option. Otherwise we would have gone without meal through 13+ hrs of journey, 2. Limited choice and very limited number of movies and TV shows.

I booked this airline twice. The first time, they cancelled the flight due to destination weather condition but without offering any optional flight but only a cancelation notice sent via SMS. I had no choice but to re-book United airline with the same travel date and destination. (no impact on the weather condition Air Premia claimed) The second time, my husband missed the flight due to local traffic in Seoul. Normally, all major airline would helped you to re-book the same flight next day with changing fee only. But Air Premia offered nothing and only requested my husband to re-book a full price ticket.

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.

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’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.

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!

United has been holding my money for a cancel on another ticket they wouldn’t let me fly for going on 5 months. Terrible service I wouldn’t choose to buy tickets or fly with united again. Very bad experience generally dishonorable and poor service .

The flight got delayed. They forgot to bring the drinks when I asked for it. The toilet is messy.

This was an overnight flight, and in the morning they did know coffee service. How you can throw passengers in a San Francisco airport at 5:40 a.m. in the morning and not giving them Coffee is a crime.

Our flight was delayed several Times due to mechanical issues. Although I understand this may happen at times, it was very inconvenient and we had to book a hotel for an overnight stay. We were traveling with my 3-yo grandson and waiting at the airport from noon until 6:30pm with no reassurance that our next rescheduled flight would depart, we had to decide what’s best for him. A day later, I found out that I may be able to demand compensation if my flight is delayed more than 4 hours. I will hav to read the fine print next time.

The staff was extremely helpful and friendly at all times! They went above and beyond to get us into an earlier flight in San Diego to make our connection in SFO possible, because our original flight did actually not make it! I did so much appreciate the UA team and how they made this possible. We also didn’t have seats together on the long flight to Singapore, but they found us seats together last moment with no additional cost! Nobody sat next to us, so that we were able to sleep! Thanks to UA for improving their service and Underpricer for booking this trip! Please be careful: 1,5 hrs for transfer in San Francisco might not be enough time in the future

Crew was great! Good meals. Had room to stretch out

How can you rate a flight when it is canceled after you leave the gate & 3 hours into sitting there or in remote area of airport after mechanical problems

Seat pitch is horrible especially on the 15 hour flight. Gate crew at SFO was Outstanding. The flight crew was also great.

6 1/2 hours from Tampa to SFO on a Boeing 737. Cramped. No Service. No real food. One pass for coffee at the beginning and a second pass THREE hours later. And check-in in Tampa was nasty even by United standards. And I am at almost TWO million miles on United. It's a non-stop. But terrible service.

First class ticket gets you no seat back entertainment? I have to bring my own laptop to see a movie? And most of their movies have ADS? No thank you. Worse: Tiny snacks only on a 2 hr flight?

Aircraft is designed with all 3 washrooms at the back of the plane, meaning that when there is service underway, there are no washrooms available and it gets very crowded at the back of the plane.

gave me complimentary food as the flight was not full and was attentive to my needs

The flight was smooth, the plane was spacious and clean, the staff was kind and the food was decent.

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.

Traveling to a place near San Francisco?

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Everything you need to know for your flight to San Francisco

Information on the airport you'll fly into in San Francisco