HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Seoul

$353+ Cheap flights from San Francisco (SFO) to Seoul (SEL)

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 — SEL
Aug 5 — Aug 121
Wed 8/5
Wed 8/12
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from San Francisco to Seoul 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.
Cheapflights Tip: The best prices from San Francisco to Seoul are usually found in February or November, booked 88 days in advance, depart on a Monday or Sunday and return on a Tuesday

Cheap flight deals from San Francisco to Seoul

Cheapest flights from San Francisco to Seoul
Explore the most affordable flight options available from San Francisco to Seoul. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 6, 2026.

This iWofly deal was found by Cheapflights users on 7/3. 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 iWofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/53:30 pm
SFO
-
ICN
Nonstop12h 40m
AIR PREMIA
Sun 9/207:15 pm
ICN
-
SFO
Nonstop11h 00m
AIR PREMIA
Deal found 7/3$713
This Gotogate deal was found by Cheapflights users on 7/6. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/195:00 pm
SFO
-
ICN
Nonstop12h 40m
AIR PREMIA
Sat 9/56:00 pm
ICN
-
SFO
Nonstop11h 00m
AIR PREMIA
Deal found 7/6$714
This KAYAK deal was found by Cheapflights users on 7/1. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/135:00 pm
SFO
-
ICN
Nonstop12h 40m
AIR PREMIA
Sat 10/106:00 pm
ICN
-
SFO
Nonstop11h 00m
AIR PREMIA
Deal found 7/1$716
This Ovago deal was found by Cheapflights users on 7/5. 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.
Wed 9/235:00 pm
SFO
-
ICN
Nonstop12h 40m
AIR PREMIA
Mon 10/266:55 pm
ICN
-
SFO
Nonstop10h 35m
AIR PREMIA
Deal found 7/5$717
This Trip.com deal was found by Cheapflights users on 7/5. 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.
Sat 9/123:30 pm
SFO
-
ICN
Nonstop12h 40m
AIR PREMIA
Mon 9/217:15 pm
ICN
-
SFO
Nonstop11h 00m
AIR PREMIA
Deal found 7/5$719
This United Airlines deal was found by Cheapflights users on 7/2. 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 9/1511:45 pm
SFO
-
ICN
Nonstop12h 35m
United Airlines
Sat 10/3111:45 am
ICN
-
SFO
Nonstop10h 45m
United Airlines
Deal found 7/2$721
This WhyPayMore deal was found by Cheapflights users on 7/6. 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.
Sun 9/65:00 pm
SFO
-
ICN
Nonstop12h 40m
AIR PREMIA
Sun 9/277:15 pm
ICN
-
SFO
Nonstop11h 00m
AIR PREMIA
Deal found 7/6$722
This United Airlines deal was found by Cheapflights users on 7/3. 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.
Mon 11/910:30 am
SFO
-
ICN
Nonstop12h 45m
United Airlines
Tue 11/1712:45 pm
ICN
-
SFO
Nonstop10h 45m
United Airlines
Deal found 7/3$723
This United Airlines deal was found by Cheapflights users on 7/6. 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.
Sat 8/111:55 pm
SFO
-
ICN
Nonstop12h 25m
United Airlines
Mon 8/1711:30 am
ICN
-
SFO
Nonstop11h 00m
United Airlines
Deal found 7/6$724
This BusinessClass deal was found by Cheapflights users on 7/1. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/135:00 pm
SFO
-
ICN
Nonstop12h 40m
AIR PREMIA
Fri 10/237:15 pm
ICN
-
SFO
Nonstop11h 00m
AIR PREMIA
Deal found 7/1$725
This United Airlines deal was found by Cheapflights users on 7/2. 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.
Sun 9/1311:59 pm
SFO
-
ICN
1 stop23h 21m
United Airlines
Sat 10/3111:45 am
ICN
-
SFO
Nonstop10h 45m
United Airlines
Deal found 7/2$726
This China Eastern deal was found by Cheapflights users on 7/3. 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 China Eastern is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/112:00 pm
SFO
-
GMP
1 stop31h 00m
China Eastern
Sun 10/188:50 pm
GMP
-
SFO
1 stop28h 15m
China Eastern
Deal found 7/3$770

Find flight deals from San Francisco to Seoul

Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to Seoul (SEL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 6, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$713
(iWofly)

One-way from

$353
(United Airlines)

Popular in

June

Cheapest in

February

Average price

$990

Good round-trip deal

$780 or less

Good one-way deal

$430 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 Seoul (SEL)
Search Deals
One-way flight from San Francisco to Seoul (SEL)
Search Deals
Highest demand for flights based on searches. 24% potential increase in price ($279 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($45 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals
Price to beat on a round-trip flight from San Francisco to Seoul (SEL).
Search Deals
Price to beat on a one-way flight from San Francisco to Seoul (SEL).
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Francisco to Seoul 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 July 6, 2026.
Use the filters below to find and compare flights from San Francisco to Seoul that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Sun 8/16

10:40 am-3:00 pm

Nonstop12h 20m

Incheon Intl

Thu 10/15

11:30 am-6:10 am

Nonstop10h 40m

$721

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Thu 8/20

11:55 pm-4:20 am

Nonstop12h 25m

Incheon Intl

Tue 9/1

11:30 am-6:30 am

Nonstop11h 00m

$721

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Fri 7/31

11:55 pm-4:20 am

Nonstop12h 25m

Incheon Intl

Tue 8/18

11:30 am-6:30 am

Nonstop11h 00m

$721

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Sat 8/15

10:40 am-3:00 pm

Nonstop12h 20m

Incheon Intl

Tue 8/25

4:50 pm-12:00 pm

Nonstop11h 10m

$721

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Sun 9/13

4:10 pm-3:20 pm

1 stop31h 10m

Incheon Intl

Sat 10/24

4:50 pm-11:40 am

Nonstop10h 50m

$726

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Wed 9/2

11:55 pm-4:20 am

Nonstop12h 25m

Incheon Intl

Fri 9/18

5:15 pm-9:14 am

1 stop31h 59m

$731

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Tue 9/8

11:59 pm-3:20 pm

1 stop23h 21m

Incheon Intl

Tue 9/22

5:15 pm-9:14 am

1 stop31h 59m

$736

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Wed 8/5

10:40 am-3:00 pm

Nonstop12h 20m

Incheon Intl

Tue 8/11

4:50 pm-12:00 pm

Nonstop11h 10m

$816

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Fri 8/21

5:00 pm-9:40 pm

Nonstop12h 40m

Incheon Intl

Sun 8/30

8:30 pm-9:10 pm

1 stop40h 40m

$828

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Thu 9/3

12:00 pm-3:20 pm

1 stop35h 20m

Incheon Intl

Tue 9/15

7:45 am-9:05 am

3 stops65h 20m

$892

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/3

Showing 1-10 of 46 resultsSorted by cheapest first
1
2
3
...
5

Compare providers for flights from San Francisco to Seoul

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Francisco to Seoul in July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star
OvagoPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
oojoPrice Accuracy3 starsTrust Score*2 stars
BudgetAirPrice Accuracy2 starsTrust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
Trip.comPrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on San Francisco-Seoul flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Francisco-Seoul flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Francisco-Seoul flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Francisco-Seoul flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Francisco-Seoul flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from San Francisco to Seoul

Have a flexible travel schedule? Discover the best time to fly to Seoul 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 Seoul

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

Currently, January is the cheapest month in which you can book a flight from San Francisco to Seoul (average of $596). Flying from San Francisco to Seoul in February is currently the most expensive (average of $1,715). 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 SEL?

Find hourly flight availability from San Francisco to Seoul. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 6, 2026.

When flying from San Francisco to Seoul, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 7% versus a flight in the morning.

Weekly flight availability from San Francisco to Seoul

Explore weekly flight availability from San Francisco to Seoul. 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 July 6, 2026.

The most flights from SFO to SEL 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).

How much does it cost to fly round-trip from San Francisco to Seoul?

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

The best time to book flights from San Francisco to Seoul is 17 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest day to fly from San Francisco to Seoul?

Use this chart to determine the cheapest time to fly round-trip from San Francisco to Seoul. Price data was last updated on July 4, 2026.

Travelers seeking maximum savings on their San Francisco to Seoul flight should consider departing on Wednesday at noon 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.

The best insider tips for San Francisco to Seoul flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your San Francisco to Seoul trip
Our travel experts
Esther Carlstone

Esther Carlstone

Expert on AIR PREMIA

Esther Carlstone is a travel and food writer based in Los Angeles. Her work has appeared in publications such as Travel + Leisure, Lonely Planet, Forbes, Tripadvisor, Insider, and more.

Read more
Marisa Garcia

Marisa Garcia

Expert on Asiana Airlines

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialized in airline interiors and regulations. Ten years ago, she pivoted to journalism. She shares her insights in leading aviation, travel, and business publications and on her site FlightChic.

Read more
Gabriel Leigh

Gabriel Leigh

Expert on ICN

Gabriel is a writer and video creator. As senior content producer for Flightradar24 and Monocle’s transport correspondent, he keeps a close eye on aviation in particular. He has also written travel articles for the likes of The New York Times. Born in New York but raised around the world, he now lives in Sweden. He’s been to 75 countries, flying 2.3 million miles on 113 airlines and through 234 airports in the process.

Read more
Harriet Baskas

Harriet Baskas

Expert on SFO

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more

Reviews of airlines servicing Seoul

Get insights into the airlines that provide service to Seoul. 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 Seoul. Reviews last updated July 6, 2026.
Read reviews from past customers who have flown Korean Air,AIR PREMIA, andAsiana Airlines from San Francisco to Seoul. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,221 reviews

Overall

8.4

Boarding

8.5

Entertainment

8.2

Comfort

8.3

Crew

8.7

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
1,221 reviews
Korean Air
8.4
Very good
1,221 reviews

Overall

8.4

Boarding

8.5

Entertainment

8.2

Comfort

8.3

Crew

8.7

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
8.2
Very good
99 reviews
Korean Air
8.4
Very good
1,221 reviews

Overall

8.4

Boarding

8.5

Entertainment

8.2

Comfort

8.3

Crew

8.7

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
8.1
Very good
550 reviews
Korean Air
8.4
Very good
1,221 reviews

Overall

8.4

Boarding

8.5

Entertainment

8.2

Comfort

8.3

Crew

8.7

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
7.8
Good
8,450 reviews
Korean Air
8.4
Very good
1,221 reviews

Overall

8.4

Boarding

8.5

Entertainment

8.2

Comfort

8.3

Crew

8.7

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
9,945 reviews
Korean Air
8.4
Very good
1,221 reviews

Overall

8.4

Boarding

8.5

Entertainment

8.2

Comfort

8.3

Crew

8.7

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 Seoul. 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 Seoul?

    For a flight from San Francisco to Seoul, you will be flying from San Francisco. San Francisco (SFO) is just 11.0 mi from the center of the city. San Francisco is the only San Francisco airport and it handles 10 outbound flights to Seoul per day. 13 airlines have flights to Seoul from San Francisco on a regular basis.

  • How long is the flight from San Francisco to Seoul?

    There are many flights that can get you from San Francisco to Seoul in 12h 20m. Fly via United Airlines, China Eastern, or Japan Airlines to get the fastest option. The distance between San Francisco and Seoul is about 5642 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from San Francisco to Seoul round-trip?

    Philippine Airlines, at $219, was found to be the cheapest airline from San Francisco to Seoul.Alternate airlines to your destination round-trip include AIR PREMIA and Japan Airlines. Philippine Airlines is priced at 74% lower than the current average price of a flight leaving 3 months from now.

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

    One-way options have recently been found by users for as low as $163 on Hawaiian Airlines. Other airlines that offer cheap prices include WestJet from $302 and Cathay Pacific from $307 one-way.

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

    Consider Thai Airways (92%), Singapore Airlines (92%) or AIR PREMIA (86%) when booking your flight. These represent the most reliable airlines when flying from San Francisco to Seoul.

  • What are the cheapest flights from San Francisco to Seoul?

    While on average a flight from San Francisco to Seoul is generally $2,456, our data shows the cheapest flight currently is $348. When looking at the most popular route, (San Francisco - Incheon Intl), you can expect to pay $689 for that flight.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from San Francisco to Seoul 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 Seoul?

    Currently, January is the cheapest month in which you can book a flight from San Francisco to Seoul (average of $596). Flying from San Francisco to Seoul in February is currently the most expensive (average of $1,715). 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.

Top 10 airlines flying from San Francisco to Seoul

Discover the top 10 airlines that operate flights from San Francisco to Seoul. 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 July 6, 2026.
AirlineCheapestAverageFlexibilityOn-time
Philippine AirlinesCheapest$219Average$649FlexibilityNo cancel feeOn-time60%
AIR PREMIACheapest$608Average$829FlexibilityNo cancel feeOn-timeN/A
Japan AirlinesCheapest$630Average$642FlexibilityNo cancel feeOn-time79%
Cathay PacificCheapest$640Average$971FlexibilityNo cancel feeOn-time72%
Alaska AirlinesCheapest$642Average$681FlexibilityNo cancel feeOn-time75%
Singapore AirlinesCheapest$651Average$848FlexibilityNo cancel feeOn-time81%
United AirlinesCheapest$661Average$763FlexibilityNo cancel feeOn-time69%
Asiana AirlinesCheapest$672Average$820FlexibilityNo cancel feeOn-time76%
Air CanadaCheapest$778Average$1,115FlexibilityNo cancel feeOn-time67%
Korean AirCheapest$811Average$964FlexibilityNo cancel feeOn-time81%

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.