HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
South Korea

$340+ Cheap flights from San Francisco (SFO) to South Korea

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/29. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — ICN
oct. 11 — oct. 181
sáb. 10/11
sáb. 10/18
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from San Francisco to South Korea with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from San Francisco to South Korea

Keep the following information in mind while searching for San Francisco to South Korea flight deals. Data was last updated septiembre 11, 2025.

Round-trip from

$648
(WhyPayMore)

One-way from

$340
(SmartFares)

Popular in

December

Cheapest in

February

Average price

$746

Good round-trip deal

$654 or less

Good one-way deal

$366 or less
From San Francisco to South Korea
Search Deals
One-way flight from San Francisco to South Korea
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($158 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($58 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals
Price to beat on a round-trip flight from San Francisco to South Korea.
Search Deals
Price to beat on a one-way flight from San Francisco to South Korea.
Search Deals

Find flight deals from San Francisco to South Korea

Cheapest flights from San Francisco to South Korea
Explore the most affordable flight options available from San Francisco to South Korea. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 11, 2025.

This WhyPayMore deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure WhyPayMore is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/510:30 pmSFO - ICN
1 stop27h 55mMultiple Airlines
mié. 11/266:55 pmICN - SFO
Nonstop10h 05mMultiple Airlines
Deal found 9/10$648
This Kiwi.com deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/2012:00 pmSFO - ICN
1 stop24h 50mMultiple Airlines
vie. 10/316:55 pmICN - SFO
Nonstop10h 05mMultiple Airlines
Deal found 9/11$649
This oojo deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/1010:30 pmSFO - ICN
1 stop27h 55mPhilippine Airlines
vie. 11/217:30 amICN - SFO
1 stop29h 00mPhilippine Airlines
Deal found 9/10$651
This FlightHub deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/2611:45 amSFO - GMP
1 stop32h 20mAir China
mar. 12/22:25 pmGMP - SFO
1 stop35h 50mAir China
Deal found 9/10$652
This Trip.com deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/2610:30 pmSFO - ICN
1 stop27h 55mMultiple Airlines
mié. 12/106:55 pmICN - SFO
Nonstop10h 05mMultiple Airlines
Deal found 9/9$652
This Kiwi.com deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/175:28 pmSFO - ICN
1 stop18h 52mMultiple Airlines
sáb. 11/228:35 pmICN - SFO
1 stop16h 39mMultiple Airlines
Deal found 9/11$653
This FlightHub deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/312:00 pmSFO - GMP
1 stop30h 00mChina Eastern
vie. 11/78:50 pmGMP - SFO
1 stop29h 10mChina Eastern
Deal found 9/9$654
This FlightHub deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/2412:00 pmSFO - ICN
1 stop32h 30mChina Eastern
dom. 12/74:10 pmICN - SFO
1 stop33h 50mChina Eastern
Deal found 9/10$654
This FlightHub deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/1012:00 pmSFO - ICN
2 stops32h 15mChina Eastern
vie. 11/214:20 pmICN - SFO
1 stop33h 40mChina Eastern
Deal found 9/11$655
This Kiwi.com deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/2012:00 pmSFO - ICN
1 stop24h 50mMultiple Airlines
mié. 11/126:55 pmICN - SFO
Nonstop10h 05mMultiple Airlines
Deal found 9/10$656
This Ovago deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/22:30 pmSFO - ICN
Nonstop13h 00mAIR PREMIA
dom. 11/166:55 pmICN - SFO
Nonstop10h 05mAIR PREMIA
Deal found 9/11$657
This FlightHub deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/1211:45 amSFO - GMP
1 stop32h 20mAir China
mar. 11/182:25 pmGMP - SFO
1 stop35h 50mAir China
Deal found 9/10$658

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Francisco to South Korea that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated septiembre 11, 2025.
Use the filters below to find and compare flights from San Francisco to South Korea that are best for you.

Fly from

San Francisco

Fly to

South Korea

Route

Depart

Return

Price

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

lun. 12/1

12:00 pm-3:05 pm

1 stop34h 05m

Incheon Intl

dom. 12/14

2:30 pm-9:00 am

1 stop35h 30m

$654

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

lun. 12/29

10:30 am-4:15 pm

Nonstop12h 45m

Incheon Intl

dom. 1/11

6:00 pm-11:35 am

Nonstop10h 35m

$662

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

lun. 9/22

3:30 pm-8:30 pm

Nonstop13h 00m

Incheon Intl

mié. 10/29

6:55 pm-1:00 pm

Nonstop10h 05m

$662

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

mié. 12/3

10:30 am-4:15 pm

Nonstop12h 45m

Incheon Intl

jue. 12/11

12:45 pm-6:30 am

Nonstop10h 45m

$662

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

sáb. 10/25

11:45 pm-4:40 am

Nonstop12h 55m

Incheon Intl

dom. 11/16

6:00 pm-11:35 am

Nonstop10h 35m

$662

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

dom. 12/21

11:45 pm-5:40 am

Nonstop12h 55m

Incheon Intl

lun. 1/5

12:45 pm-6:30 am

Nonstop10h 45m

$662

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

sáb. 12/6

11:45 pm-5:40 am

Nonstop12h 55m

Incheon Intl

vie. 12/12

6:00 pm-11:35 am

Nonstop10h 35m

$662

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

vie. 12/5

10:30 am-4:15 pm

Nonstop12h 45m

Incheon Intl

mar. 12/16

12:45 pm-6:30 am

Nonstop10h 45m

$662

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

vie. 12/19

10:30 am-4:15 pm

Nonstop12h 45m

Incheon Intl

sáb. 1/3

12:45 pm-6:30 am

Nonstop10h 45m

$662

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

dom. 3/8

9:10 am-6:35 pm

1 stop17h 25m

Incheon Intl

dom. 3/15

8:35 pm-10:15 am

1 stop29h 40m

$682

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

Showing 1-10 of 57 results
1
2
3
...
6

Best time to book a flight from San Francisco to South Korea

Have a flexible travel schedule? Discover the best time to fly to South Korea from San Francisco with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

What is the cheapest month to book a flight from San Francisco to South Korea?

Currently, February is the cheapest month in which you can book a flight from San Francisco to South Korea (average of $990). Flying from San Francisco to South Korea in December is currently the most expensive (average of $1,633). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SFO to KR?

Find hourly flight availability from San Francisco to South Korea. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated septiembre 11, 2025.

When flying from San Francisco to South Korea, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from San Francisco to South Korea

Explore weekly flight availability from San Francisco to South Korea. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated septiembre 11, 2025.

The most flights from SFO to KR0 are scheduled on a Monday (11 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (10 on average).

Reviews of airlines servicing South Korea

Get insights into the airlines that provide service to South Korea. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to South Korea. Reviews last updated septiembre 11, 2025.
Get a feel of what it's like to fly with Korean Air, AIR PREMIA, and Asiana Airlines from San Francisco to South Korea by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,139 reviews

Food

8.1

Boarding

8.5

Overall

8.4

Entertainment

8.2

Crew

8.7

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Korean Air
8.4
Very good
1,139 reviews
Korean Air
8.4
Very good
1,139 reviews

Food

8.1

Boarding

8.5

Overall

8.4

Entertainment

8.2

Crew

8.7

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
AIR PREMIA
8.2
Very good
62 reviews
Korean Air
8.4
Very good
1,139 reviews

Food

8.1

Boarding

8.5

Overall

8.4

Entertainment

8.2

Crew

8.7

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Asiana Airlines
8.2
Very good
479 reviews
Korean Air
8.4
Very good
1,139 reviews

Food

8.1

Boarding

8.5

Overall

8.4

Entertainment

8.2

Crew

8.7

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Delta
8.0
Very good
7,960 reviews
Korean Air
8.4
Very good
1,139 reviews

Food

8.1

Boarding

8.5

Overall

8.4

Entertainment

8.2

Crew

8.7

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
United Airlines
7.4
Good
8,937 reviews
Korean Air
8.4
Very good
1,139 reviews

Food

8.1

Boarding

8.5

Overall

8.4

Entertainment

8.2

Crew

8.7

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

Related info for your journey

Find useful and relevant information for your journey from San Francisco to South Korea. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from San Francisco to South Korea?

    Most people fly from San Francisco (SFO) if they book a flight from San Francisco to South Korea. San Francisco is conveniently located just 11.8 mi from San Francisco’s city center.

  • How popular is this San Francisco to South Korea flight route?

    Flights from San Francisco to South Korea have been viewed 398 times in the past calendar month.

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

    Airlines like China Eastern, United Airlines, and AIR PREMIA fly from San Francisco to South Korea in about 12h 45m. The time it takes to get you to your destination can typically vary by up to 21h 20m. Airlines will cover a distance of 5642 mi. This flight may include one or multiple stops.

  • What are the most popular routes from San Francisco to South Korea?

    While some choose either San Francisco - Seoul Gimpo Intl or San Francisco - Busan Gimhae, San Francisco - Incheon Intl is the most popular route from San Francisco to South Korea.

  • What are the most reliable airlines from San Francisco to South Korea?

    The top 3 most reliable airlines when flying from San Francisco to South Korea are Asiana Airlines (94%), United Airlines (94%) and AIR PREMIA (93%).

  • What are the cheapest flights from San Francisco to South Korea?

    Looking for the cheapest flight from San Francisco to South Korea? While on average our users pay $1,821, our data indicates the cheapest price to be $342. The most popular route (San Francisco - Incheon Intl), is priced around $606.

  • Can I find deals for flights from San Francisco to South Korea that include hotel bookings?

    Yes. In addition to deals on San Francisco to South Korea flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Francisco to South Korea?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Francisco to South Korea.

  • Can I find deals for business class flights from San Francisco to South Korea?

    Yes. Cheapflights offers flight deals from San Francisco to South Korea by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from San Francisco to South Korea?

    Currently, February is the cheapest month in which you can book a flight from San Francisco to South Korea (average of $990). Flying from San Francisco to South Korea in December is currently the most expensive (average of $1,633). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for San Francisco to South Korea

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Haneda flights
Los Angeles to Narita flights
San Francisco to Haneda flights
Los Angeles to Manila flights
San Francisco to Narita flights
Los Angeles to Suvarnabhumi flights
San Francisco to Manila flights
San Francisco to New Delhi flights
San Francisco to Taiwan Taoyuan Intl flights
San Francisco to Hong Kong flights
Ontario to Narita flights
San Francisco to Suvarnabhumi flights
Los Angeles to Incheon Intl flights
Los Angeles to Ho Chi Minh City flights
San Francisco to Mumbai flights
Los Angeles to Taiwan Taoyuan Intl flights
San Francisco to Ho Chi Minh City flights
Ontario to Haneda flights
Los Angeles to Hongqiao Intl flights
Los Angeles to Kansai Intl flights
San Diego to Narita flights
San Francisco to Hongqiao Intl flights
Los Angeles to Hong Kong flights
Ontario to Suvarnabhumi flights
Ontario to Manila flights
Los Angeles to Pu Dong flights
Burbank to Narita flights
San Francisco to Pu Dong flights
Los Angeles to New Delhi flights
Los Angeles to Singapore flights
San Francisco to Bangalore flights
San Francisco to Incheon Intl flights
Santa Ana to Narita flights
San Jose to New Delhi flights
Los Angeles to Don Mueang Intl flights
Santa Ana to Haneda flights
Oakland to New Delhi flights
San Francisco to Sung Shan flights
Burbank to Manila flights
Ontario to Taiwan Taoyuan Intl flights
Los Angeles to Mumbai flights
Santa Ana to Manila flights
Burbank to Suvarnabhumi flights
San Francisco to Hyderabad flights
San Francisco to Kansai Intl flights
Santa Ana to Suvarnabhumi flights
Los Angeles to Yerevan flights
San Francisco to Singapore flights
San Diego to Haneda flights
Los Angeles to Gimpo Intl flights

Top 10 airlines flying from San Francisco to South Korea

Discover the top 10 airlines that operate flights from San Francisco to South Korea. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated septiembre 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$422Average$671FlexibilityNo cancel feeOn-time85%
AIR PREMIACheapest$615Average$784FlexibilityNo cancel feeOn-timeN/A
Asiana AirlinesCheapest$649Average$784FlexibilityNo cancel feeOn-time76%
China EasternCheapest$651Average$746FlexibilityNo cancel feeOn-time62%
Singapore AirlinesCheapest$651Average$848FlexibilityNo cancel feeOn-time81%
United AirlinesCheapest$660Average$803FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$675Average$1,075FlexibilityNo cancel feeOn-time75%
Korean AirCheapest$775Average$975FlexibilityNo cancel feeOn-time81%
Air CanadaCheapest$789Average$960FlexibilityNo cancel feeOn-time67%
Cathay PacificCheapest$809Average$883FlexibilityNo cancel feeOn-time72%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.