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$344+ 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 11/28. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — ICN
Nov 30 — Dec 71
Sun 11/30
Sun 12/7
1 adult, Economy
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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 October 31, 2025.

Most accurate provider

Justfly.com
3 stars

Most trusted provider

Justfly.com
3 stars

Round-trip from

$648
(Kiwi.com)

One-way from

$344
(SmartFares)

Popular in

December

Cheapest in

February

Average price

$751

Good round-trip deal

$661 or less

Good one-way deal

$371 or less
Provider with most accurate pricing for San Francisco-Seoul (SEL) flight deals.
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Provider most trusted by Cheapflights users for San Francisco-Seoul (SEL) flights.
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From San Francisco to South Korea
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One-way flight from San Francisco to South Korea
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Highest demand for flights based on searches. 10% potential increase in price ($100 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($42 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Price to beat on a round-trip flight from San Francisco to South Korea.
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Price to beat on a one-way flight from San Francisco to South Korea.
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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 October 31, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/29. 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.
Fri 12/52:30 pmSFO - ICN
Nonstop13h 00mAIR PREMIA
Mon 12/156:55 pmICN - SFO
Nonstop10h 35mAIR PREMIA
Deal found 10/29$648
This oojo deal was found by Cheapflights users on 10/30. 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.
Mon 11/32:30 pmSFO - ICN
Nonstop13h 00mAIR PREMIA
Wed 11/126:55 pmICN - SFO
Nonstop10h 35mAIR PREMIA
Deal found 10/30$649
This Vliegwinkel deal was found by Cheapflights users on 10/29. 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 Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/319:00 amSFO - ICN
1 stop17h 35mHawaiian Airlines
Fri 11/148:35 pmICN - SFO
1 stop18h 06mHawaiian Airlines
Deal found 10/29$650
This CheapOair deal was found by Cheapflights users on 10/28. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2911:30 pmSFO - ICN
1 stop27h 55mMultiple Airlines
Mon 11/36:55 pmICN - SFO
Nonstop10h 35mMultiple Airlines
Deal found 10/28$651
This SmartFares deal was found by Cheapflights users on 10/28. 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.
Fri 11/78:00 amSFO - ICN
1 stop17h 35mAlaska Airlines
Sat 11/158:35 pmICN - SFO
1 stop14h 28mAlaska Airlines
Deal found 10/28$654
This Mytrip deal was found by Cheapflights users on 10/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2911:30 pmSFO - ICN
1 stop27h 55mMultiple Airlines
Wed 11/56:55 pmICN - SFO
Nonstop10h 35mMultiple Airlines
Deal found 10/28$659
This United Airlines deal was found by Cheapflights users on 10/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/211:45 pmSFO - ICN
Nonstop12h 55mUnited Airlines
Tue 12/236:00 pmICN - SFO
Nonstop10h 35mUnited Airlines
Deal found 10/27$661
This United Airlines deal was found by Cheapflights users on 10/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2811:45 pmSFO - ICN
Nonstop12h 55mUnited Airlines
Sat 11/15:05 pmICN - SFO
Nonstop10h 30mUnited Airlines
Deal found 10/28$662
This United Airlines deal was found by Cheapflights users on 10/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/3110:30 amSFO - ICN
Nonstop12h 40mUnited Airlines
Fri 11/1412:45 pmICN - SFO
Nonstop10h 45mUnited Airlines
Deal found 10/29$663
This United Airlines deal was found by Cheapflights users on 10/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/3010:30 amSFO - ICN
Nonstop12h 40mUnited Airlines
Thu 11/612:45 pmICN - SFO
Nonstop10h 45mUnited Airlines
Deal found 10/29$664
This Flighttix deal was found by Cheapflights users on 10/28. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/284:39 pmSFO - ICN
1 stop33h 56mHawaiian Airlines
Sat 11/18:35 pmICN - SFO
1 stop15h 38mHawaiian Airlines
Deal found 10/28$666
This Kiwi.com deal was found by Cheapflights users on 10/28. 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.
Fri 12/52:30 pmSFO - CJU
1 stop37h 40mMultiple Airlines
Fri 12/128:15 amCJU - SFO
1 stop21h 15mMultiple Airlines
Deal found 10/28$756

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 October 31, 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

Sun 12/7

10:30 am-4:15 pm

Nonstop12h 45m

Incheon Intl

Fri 12/19

12:45 pm-6:30 am

Nonstop10h 45m

$661

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Thu 1/22

10:30 am-4:15 pm

Nonstop12h 45m

Incheon Intl

Tue 2/10

12:45 pm-6:30 am

Nonstop10h 45m

$661

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Mon 12/1

11:45 pm-5:40 am

Nonstop12h 55m

Incheon Intl

Fri 12/19

6:00 pm-11:35 am

Nonstop10h 35m

$661

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Thu 11/27

10:30 am-4:15 pm

Nonstop12h 45m

Incheon Intl

Sat 12/6

12:45 pm-6:30 am

Nonstop10h 45m

$661

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Wed 11/5

10:30 am-4:15 pm

Nonstop12h 45m

Incheon Intl

Wed 11/26

12:45 pm-6:30 am

Nonstop10h 45m

$666

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Sat 11/15

7:37 pm-6:35 pm

1 stop29h 58m

Incheon Intl

Sun 11/23

8:35 pm-11:36 pm

1 stop20h 01m

$681

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Fri 12/26

10:30 am-4:15 pm

Nonstop12h 45m

Incheon Intl

Thu 1/22

6:00 pm-11:35 am

Nonstop10h 35m

$726

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Thu 12/25

11:45 pm-5:40 am

Nonstop12h 55m

Incheon Intl

Sun 1/25

6:00 pm-11:35 am

Nonstop10h 35m

$777

San FranciscoBusan

SFO - PUS

SFOPUS

San Francisco

Mon 11/10

12:00 pm-11:35 am

1 stop30h 35m

Busan Gimhae

Sun 11/16

12:35 pm-5:38 pm

2 stops46h 03m

$825

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Wed 11/5

6:59 pm-5:10 am

1 stop17h 11m

Incheon Intl

Wed 11/26

4:00 pm-9:30 am

Nonstop10h 30m

$866

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/29

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 $414). Flying from San Francisco to South Korea in June is currently the most expensive (average of $690). 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 October 31, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 39% 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.

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 October 31, 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
1,155 reviews

Overall

8.4

Boarding

8.5

Entertainment

8.2

Crew

8.7

Comfort

8.3

Food

8.1

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
1,155 reviews
Korean Air
8.4
Very good
1,155 reviews

Overall

8.4

Boarding

8.5

Entertainment

8.2

Crew

8.7

Comfort

8.3

Food

8.1

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
66 reviews
Korean Air
8.4
Very good
1,155 reviews

Overall

8.4

Boarding

8.5

Entertainment

8.2

Crew

8.7

Comfort

8.3

Food

8.1

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
484 reviews
Korean Air
8.4
Very good
1,155 reviews

Overall

8.4

Boarding

8.5

Entertainment

8.2

Crew

8.7

Comfort

8.3

Food

8.1

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
7,996 reviews
Korean Air
8.4
Very good
1,155 reviews

Overall

8.4

Boarding

8.5

Entertainment

8.2

Crew

8.7

Comfort

8.3

Food

8.1

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
8,998 reviews
Korean Air
8.4
Very good
1,155 reviews

Overall

8.4

Boarding

8.5

Entertainment

8.2

Crew

8.7

Comfort

8.3

Food

8.1

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 United Airlines, China Eastern, and Delta 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 17h 50m. 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 AIR PREMIA, with whom users have recently found tickets for as low as $344. However, be on the lookout for offers from Air Canada and China Eastern, 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 - 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 AIR PREMIA (94%), Thai Airways (93%) and Singapore Airlines (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 $1,102, our data indicates the cheapest price to be $344. The most popular route (San Francisco - Incheon Intl), is priced around $603.

  • 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 $414). Flying from San Francisco to South Korea in June is currently the most expensive (average of $690). 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 October 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$422Average$670FlexibilityNo cancel feeOn-time85%
AIR PREMIACheapest$610Average$799FlexibilityNo cancel feeOn-timeN/A
China EasternCheapest$622Average$714FlexibilityNo cancel feeOn-time62%
Asiana AirlinesCheapest$648Average$785FlexibilityNo cancel feeOn-time76%
Singapore AirlinesCheapest$651Average$848FlexibilityNo cancel feeOn-time81%
United AirlinesCheapest$660Average$747FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$672Average$1,075FlexibilityNo cancel feeOn-time75%
Korean AirCheapest$775Average$947FlexibilityNo cancel feeOn-time81%
Air CanadaCheapest$801Average$1,012FlexibilityNo cancel feeOn-time67%
Cathay PacificCheapest$805Average$875FlexibilityNo cancel feeOn-time72%

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