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$383+ 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 9/14. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — ICN
mai 31 — juin 71
dim. 5/31
dim. 6/7
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 mai 1, 2026.

This CrystalTravel deal was found by Cheapflights users on 4/30. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 5/63:30 pm
SFO
-
ICN
Nonstop12h 40m
AIR PREMIA
mer. 5/136:00 pm
ICN
-
SFO
Nonstop11h 00m
AIR PREMIA
Deal found 4/30$698
This CrystalTravel deal was found by Cheapflights users on 4/29. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 10/243:30 pm
SFO
-
ICN
Nonstop12h 40m
AIR PREMIA
lun. 11/96:55 pm
ICN
-
SFO
Nonstop10h 35m
AIR PREMIA
Deal found 4/29$699
This CrystalTravel deal was found by Cheapflights users on 5/1. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 8/263:30 pm
SFO
-
ICN
Nonstop12h 40m
AIR PREMIA
sam. 9/56:00 pm
ICN
-
SFO
Nonstop11h 00m
AIR PREMIA
Deal found 5/1$702
This CrystalTravel deal was found by Cheapflights users on 4/29. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 5/83:30 pm
SFO
-
ICN
Nonstop12h 40m
AIR PREMIA
dim. 5/176:00 pm
ICN
-
SFO
Nonstop11h 00m
AIR PREMIA
Deal found 4/29$703
This CrystalTravel deal was found by Cheapflights users on 4/27. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 8/213:30 pm
SFO
-
ICN
Nonstop12h 40m
AIR PREMIA
mer. 8/266:00 pm
ICN
-
SFO
Nonstop11h 00m
AIR PREMIA
Deal found 4/27$707
This CrystalTravel deal was found by Cheapflights users on 4/30. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 8/263:30 pm
SFO
-
ICN
Nonstop12h 40m
AIR PREMIA
mer. 9/26:00 pm
ICN
-
SFO
Nonstop11h 00m
AIR PREMIA
Deal found 4/30$709
This CrystalTravel deal was found by Cheapflights users on 4/26. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 5/13:30 pm
SFO
-
ICN
Nonstop12h 40m
AIR PREMIA
ven. 5/86:00 pm
ICN
-
SFO
Nonstop11h 00m
AIR PREMIA
Deal found 4/26$711
This CrystalTravel deal was found by Cheapflights users on 4/27. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 8/263:30 pm
SFO
-
ICN
Nonstop12h 40m
AIR PREMIA
mer. 9/96:00 pm
ICN
-
SFO
Nonstop11h 00m
AIR PREMIA
Deal found 4/27$717
This Super.com deal was found by Cheapflights users on 4/28. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 4/293:30 pm
SFO
-
ICN
Nonstop12h 40m
AIR PREMIA
mer. 5/66:00 pm
ICN
-
SFO
Nonstop11h 00m
AIR PREMIA
Deal found 4/28$722
This Super.com deal was found by Cheapflights users on 4/28. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 5/43:30 pm
SFO
-
ICN
Nonstop12h 40m
AIR PREMIA
mer. 5/136:00 pm
ICN
-
SFO
Nonstop11h 00m
AIR PREMIA
Deal found 4/28$723
This Super.com deal was found by Cheapflights users on 4/30. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 5/83:30 pm
SFO
-
ICN
Nonstop12h 40m
AIR PREMIA
mer. 5/136:00 pm
ICN
-
SFO
Nonstop11h 00m
AIR PREMIA
Deal found 4/30$724
This FlightHub deal was found by Cheapflights users on 4/30. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 9/512:00 pm
SFO
-
GMP
1 stop31h 00m
China Eastern
dim. 9/138:50 pm
GMP
-
SFO
1 stop28h 15m
China Eastern
Deal found 4/30$886

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 mai 1, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$698
(CrystalTravel)

One-way from

$383
(Trip.com)

Popular in

June

Cheapest in

November

Average price

$861

Good round-trip deal

$766 or less

Good one-way deal

$478 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. 16% potential increase in price ($164 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($36 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
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 mai 1, 2026.
Use the filters below to find and compare flights from San Francisco to South Korea that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

lun. 8/24

11:55 pm-4:20 am

Nonstop12h 25m

Incheon Intl

mar. 9/1

11:30 am-6:30 am

Nonstop11h 00m

$762

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

mer. 9/16

10:25 am-3:00 pm

Nonstop12h 35m

Incheon Intl

sam. 12/12

6:30 pm-9:30 am

1 stop32h 00m

$772

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

mer. 9/23

10:25 am-3:00 pm

Nonstop12h 35m

Incheon Intl

lun. 11/9

6:30 pm-11:39 am

1 stop34h 09m

$779

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

lun. 5/11

10:20 am-3:00 pm

Nonstop12h 40m

Incheon Intl

mer. 5/20

11:30 am-6:15 am

Nonstop10h 45m

$823

San FranciscoJeju City

SFO - CJU

SFOCJU

San Francisco

lun. 9/7

1:20 am-6:30 am

1 stop37h 10m

Jeju City

mar. 9/15

7:30 am-11:25 am

1 stop19h 55m

$941

San FranciscoDaegu

SFO - TAE

SFOTAE

San Francisco

mer. 9/9

8:55 am-4:10 pm

2 stops39h 15m

Daegu

dim. 9/13

12:00 pm-9:05 am

1 stop37h 05m

$960

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

lun. 9/7

7:56 pm-10:15 pm

2 stops34h 19m

Incheon Intl

ven. 9/11

5:15 pm-9:14 am

1 stop31h 59m

$989

San FranciscoBusan

SFO - PUS

SFOPUS

San Francisco

sam. 10/10

3:30 pm-9:05 pm

1 stop37h 35m

Busan Gimhae

mer. 10/14

7:10 am-1:00 pm

1 stop21h 50m

$1,024

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

lun. 8/31

12:00 pm-3:20 pm

1 stop35h 20m

Incheon Intl

ven. 9/4

8:55 am-3:11 pm

2 stops22h 16m

$1,034
Quickest round-trip

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

jeu. 9/10

12:50 pm-5:20 pm

Nonstop12h 30m

Incheon Intl

lun. 9/21

4:00 pm-10:40 am

Nonstop10h 40m

$1,062

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Showing 1-10 of 60 resultsSorted by cheapest first
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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

How far ahead should I book a flight from San Francisco to South Korea?

Booking 17 days in advance of your planned departure date is, on average, the best time to get cheap flights from San Francisco to South Korea. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, January is the cheapest month in which you can book a flight from San Francisco to South Korea (average of $596). Flying from San Francisco to South Korea in December is currently the most expensive (average of $1,779). 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 mai 1, 2026.

Unlike in the morning, when flights are generally more expensive, you can save up to 8% on flights from San Francisco to South Korea by exploring options for tickets in the afternoon.

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 April 25, 2026.

Travelers seeking maximum savings on their San Francisco to South Korea flight should consider departing on Thursday afternoons when fares are most often at their lowest. Saturday 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 mai 1, 2026.

The most flights from SFO to KR0 are scheduled on a Wednesday (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 23% of weekly flights between San Francisco and South Korea have experienced delays in the past year, with the average delay time being 226 minutes.

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

Historically, flights departing in the early afternoon 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?

Monday 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 12% 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 mai 1, 2026.
Get a feel of what it's like to fly with Korean Air,AIR PREMIA, andAsiana 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
1,216 reviews

Comfort

8.3

Food

8.1

Entertainment

8.2

Boarding

8.5

Crew

8.7

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
1,216 reviews
Korean Air
8.4
Very good
1,216 reviews

Comfort

8.3

Food

8.1

Entertainment

8.2

Boarding

8.5

Crew

8.7

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
8.1
Very good
90 reviews
Korean Air
8.4
Very good
1,216 reviews

Comfort

8.3

Food

8.1

Entertainment

8.2

Boarding

8.5

Crew

8.7

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
8.1
Very good
525 reviews
Korean Air
8.4
Very good
1,216 reviews

Comfort

8.3

Food

8.1

Entertainment

8.2

Boarding

8.5

Crew

8.7

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
8,464 reviews
Korean Air
8.4
Very good
1,216 reviews

Comfort

8.3

Food

8.1

Entertainment

8.2

Boarding

8.5

Crew

8.7

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
9,678 reviews
Korean Air
8.4
Very good
1,216 reviews

Comfort

8.3

Food

8.1

Entertainment

8.2

Boarding

8.5

Crew

8.7

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 11.0 mi from San Francisco’s city center.

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

    Airlines like United Airlines, Cathay Pacific, and China Eastern fly from San Francisco to South Korea in about 12h 25m. The time it takes to get you to your destination can typically vary by up to 26h 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 Hawaiian Airlines, with whom users have recently found tickets for as low as $163. However, be on the lookout for offers from WestJet and Cathay Pacific, 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 Brit Mediterranean (100%), Thai Airways (95%) and Singapore Airlines (95%).

  • 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 $1,401, our data indicates the cheapest price to be $362. The most popular route (San Francisco - Incheon Intl), is priced around $698.

  • 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, January is the cheapest month in which you can book a flight from San Francisco to South Korea (average of $596). Flying from San Francisco to South Korea in December is currently the most expensive (average of $1,779). 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 mai 1, 2026.
AirlineCheapestAverageFlexibilityOn-time
Philippine AirlinesCheapest$219Average$643FlexibilityNo cancel feeOn-time60%
AIR PREMIACheapest$597Average$783FlexibilityNo cancel feeOn-timeN/A
Japan AirlinesCheapest$630Average$640FlexibilityNo cancel feeOn-time79%
Cathay PacificCheapest$640Average$890FlexibilityNo cancel feeOn-time72%
Alaska AirlinesCheapest$642Average$676FlexibilityNo cancel feeOn-time75%
Singapore AirlinesCheapest$651Average$848FlexibilityNo cancel feeOn-time81%
United AirlinesCheapest$660Average$755FlexibilityNo cancel feeOn-time69%
Asiana AirlinesCheapest$672Average$805FlexibilityNo cancel feeOn-time76%
Air CanadaCheapest$796Average$1,115FlexibilityNo cancel feeOn-time67%
DeltaCheapest$812Average$1,201FlexibilityNo cancel feeOn-timeN/A

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