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$349+ 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 4/5. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — ICN
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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Cheap 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 December 12, 2025.

This AIR PREMIA deal was found by Cheapflights users on 12/11. 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 AIR PREMIA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/312:30 pmSFO - ICN
Nonstop13h 00mAIR PREMIA
Fri 1/236:55 pmICN - SFO
Nonstop10h 35mAIR PREMIA
Deal found 12/11$662
This Trip.com deal was found by Cheapflights users on 12/10. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/312:30 pmSFO - ICN
Nonstop13h 00mMultiple Airlines
Mon 1/261:05 pmICN - SFO
1 stop17h 35mMultiple Airlines
Deal found 12/10$754
This SmartFares deal was found by Cheapflights users on 12/10. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/254:42 pmSFO - ICN
1 stop32h 53mMultiple Airlines
Sun 1/258:35 pmICN - SFO
1 stop14h 24mMultiple Airlines
Deal found 12/10$808
This Asiana Airlines deal was found by Cheapflights users on 12/11. 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 Asiana Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3111:50 pmSFO - ICN
Nonstop13h 05mAsiana Airlines
Tue 1/278:50 pmICN - SFO
Nonstop10h 10mAsiana Airlines
Deal found 12/11$813
This Trip.com deal was found by Cheapflights users on 12/9. 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.
Wed 12/312:30 pmSFO - ICN
Nonstop13h 00mMultiple Airlines
Tue 1/209:20 pmICN - SFO
2 stops33h 40mMultiple Airlines
Deal found 12/9$819
This FlightHub deal was found by Cheapflights users on 12/10. 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.
Mon 12/292:30 pmSFO - ICN
Nonstop13h 00mAIR PREMIA
Wed 1/216:55 pmICN - SFO
Nonstop10h 35mAIR PREMIA
Deal found 12/10$828
This Kiwi.com deal was found by Cheapflights users on 12/11. 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.
Wed 12/312:30 pmSFO - ICN
Nonstop13h 00mMultiple Airlines
Wed 1/289:40 amICN - SFO
2 stops18h 33mMultiple Airlines
Deal found 12/11$829
This Kiwi.com deal was found by Cheapflights users on 12/11. 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.
Wed 12/312:30 pmSFO - ICN
Nonstop13h 00mMultiple Airlines
Sat 1/249:20 pmICN - SFO
1 stop29h 10mMultiple Airlines
Deal found 12/11$830
This AIR PREMIA deal was found by Cheapflights users on 12/10. 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 AIR PREMIA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/282:30 pmSFO - ICN
Nonstop13h 00mAIR PREMIA
Sun 1/186:55 pmICN - SFO
Nonstop10h 35mAIR PREMIA
Deal found 12/10$861
This AIR PREMIA deal was found by Cheapflights users on 12/11. 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 AIR PREMIA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/282:30 pmSFO - ICN
Nonstop13h 00mAIR PREMIA
Mon 1/266:55 pmICN - SFO
Nonstop10h 35mAIR PREMIA
Deal found 12/11$862
This Cheapflightsfares deal was found by Cheapflights users on 12/11. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2912:00 pmSFO - ICN
2 stops29h 55mChina Eastern
Wed 1/218:50 pmICN - SFO
2 stops29h 10mChina Eastern
Deal found 12/11$868
This oojo deal was found by Cheapflights users on 12/10. 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.
Thu 12/1112:50 pmSFO - GMP
1 stop16h 15mJapan Airlines
Sun 12/148:00 amGMP - SFO
1 stop19h 15mJapan Airlines
Deal found 12/10$1,047

Find 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 December 12, 2025.

Most accurate provider

Justfly.com
3 stars

Most trusted provider

Justfly.com
3 stars

Round-trip from

$643
(Gotogate)

One-way from

$349
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$1,266

Good round-trip deal

$661 or less

Good one-way deal

$381 or less
Provider with most accurate pricing for San Francisco-Seoul (SEL) flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Francisco-Seoul (SEL) flights.
Search Deals
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. 8% potential increase in price ($81 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($41 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 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

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 December 12, 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

Fri 1/23

2:30 pm-8:30 pm

Nonstop13h 00m

Incheon Intl

Mon 1/26

6:55 pm-12:30 pm

Nonstop10h 35m

$661

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Fri 1/23

2:30 pm-8:30 pm

Nonstop13h 00m

Incheon Intl

Wed 1/28

6:55 pm-12:30 pm

Nonstop10h 35m

$661

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Sun 1/25

2:30 pm-8:30 pm

Nonstop13h 00m

Incheon Intl

Sat 1/31

6:55 pm-12:30 pm

Nonstop10h 35m

$661

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Mon 1/19

2:30 pm-8:30 pm

Nonstop13h 00m

Incheon Intl

Mon 1/26

6:55 pm-12:30 pm

Nonstop10h 35m

$661

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Mon 1/19

2:30 pm-8:30 pm

Nonstop13h 00m

Incheon Intl

Fri 1/30

6:55 pm-12:30 pm

Nonstop10h 35m

$661

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Wed 1/21

2:30 pm-8:30 pm

Nonstop13h 00m

Incheon Intl

Fri 1/30

6:55 pm-12:30 pm

Nonstop10h 35m

$661

San FranciscoJeju City

SFO - CJU

SFOCJU

San Francisco

Thu 1/29

11:25 am-6:40 am

1 stop26h 15m

Jeju City

Mon 2/2

7:55 am-9:15 pm

1 stop30h 20m

$812

San FranciscoGwangju

SFO - KWJ

SFOKWJ

San Francisco

Mon 3/9

11:30 pm-11:45 am

2 stops44h 15m

Gwangju

Wed 3/18

12:20 pm-1:30 pm

1 stop17h 10m

$813

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Thu 1/22

11:50 pm-5:45 am

Nonstop12h 55m

Incheon Intl

Sat 1/24

8:50 pm-2:00 pm

Nonstop10h 10m

$813

San FranciscoGwangju

SFO - KWJ

SFOKWJ

San Francisco

Mon 3/2

10:30 pm-11:45 am

2 stops44h 15m

Gwangju

Mon 3/9

12:20 pm-1:30 pm

1 stop17h 10m

$813

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/11

Showing 1-10 of 60 results
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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, April is the cheapest month in which you can book a flight from San Francisco to South Korea (average of $446). Flying from San Francisco to South Korea in June is currently the most expensive (average of $661). 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 December 12, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 40% on flights from San Francisco to South Korea by exploring options for tickets at noon.

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

Use this chart to determine the cheapest time to fly round-trip from San Francisco to South Korea. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their San Francisco to South Korea flight should consider departing on Monday at noon when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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 December 12, 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 (6 on average).

How often are flights from San Francisco to South Korea delayed?

About 21% of weekly flights between San Francisco and South Korea have experienced delays in the past year, with the average delay time being 236 minutes.

What is the most punctual flight time for San Francisco to South Korea flights?

Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Tuesday tends to have the lowest number of delays on this route, whereas Saturday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on San Francisco to South Korea flights?

Over the last year, AIR PREMIA have had the lowest number of delays on this route, with just 15% of flights being delayed.

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 December 12, 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
1,184 reviews

Food

8.1

Comfort

8.3

Crew

8.7

Entertainment

8.2

Boarding

8.5

Overall

8.4

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
1,184 reviews
Korean Air
8.4
Very good
1,184 reviews

Food

8.1

Comfort

8.3

Crew

8.7

Entertainment

8.2

Boarding

8.5

Overall

8.4

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
8.3
Very good
72 reviews
Korean Air
8.4
Very good
1,184 reviews

Food

8.1

Comfort

8.3

Crew

8.7

Entertainment

8.2

Boarding

8.5

Overall

8.4

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
492 reviews
Korean Air
8.4
Very good
1,184 reviews

Food

8.1

Comfort

8.3

Crew

8.7

Entertainment

8.2

Boarding

8.5

Overall

8.4

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
7.9
Good
8,007 reviews
Korean Air
8.4
Very good
1,184 reviews

Food

8.1

Comfort

8.3

Crew

8.7

Entertainment

8.2

Boarding

8.5

Overall

8.4

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
9,095 reviews
Korean Air
8.4
Very good
1,184 reviews

Food

8.1

Comfort

8.3

Crew

8.7

Entertainment

8.2

Boarding

8.5

Overall

8.4

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 AIR PREMIA, Cathay Pacific, and Philippine Airlines fly from San Francisco to South Korea in about 13h. The time it takes to get you to your destination can typically vary by up to 13h 15m. Airlines will cover a distance of 5642 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from San Francisco to South Korea one-way?

    The cheapest airline one-way is Hawaiian Airlines, with whom users have recently found tickets for as low as $197. However, be on the lookout for offers from AIR PREMIA and Asiana Airlines, as they are both options that can get you from San Francisco to South Korea for a low price.

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

    While some choose either San Francisco - Seoul Gimpo Intl or San Francisco - Gwangju, 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 AIR PREMIA (74%), Korean Air (69%) and Thai Airways (67%).

  • 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 $937, our data indicates the cheapest price to be $344. The most popular route (San Francisco - Incheon Intl), is priced around $608.

  • 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, April is the cheapest month in which you can book a flight from San Francisco to South Korea (average of $446). Flying from San Francisco to South Korea in June is currently the most expensive (average of $661). 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

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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 December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
AIR PREMIACheapest$608Average$809FlexibilityNo cancel feeOn-timeN/A
China EasternCheapest$622Average$714FlexibilityNo cancel feeOn-time62%
Japan AirlinesCheapest$630Average$1,115FlexibilityNo cancel feeOn-time79%
Asiana AirlinesCheapest$648Average$801FlexibilityNo cancel feeOn-time76%
Singapore AirlinesCheapest$651Average$848FlexibilityNo cancel feeOn-time81%
United AirlinesCheapest$660Average$766FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$674Average$1,073FlexibilityNo cancel feeOn-time75%
Korean AirCheapest$790Average$961FlexibilityNo cancel feeOn-time81%
Air CanadaCheapest$799Average$983FlexibilityNo cancel feeOn-time67%
Cathay PacificCheapest$805Average$880FlexibilityNo cancel feeOn-time72%

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