San Francisco

$321+ Cheap flights from Seoul (SEL) to San Francisco (SFO)

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 4/19. Fares are subject to change and may not be available on all flights or dates of travel.
SEL — SFO
Mar 14 — Mar 211
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Find cheap flights from Seoul to San Francisco 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

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3. Compare prices and book

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Cheapflights Tip: The best prices from Seoul to San Francisco are usually found in November or February, booked 15 days in advance, depart on a Wednesday or Tuesday and return on a Sunday

Cheap flight deals from Seoul to San Francisco

Cheapest flights from Seoul to San Francisco
Explore the most affordable flight options available from Seoul to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 12, 2026.

This Trip.com deal was found by Cheapflights users on 2/11. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/278:35 pm
ICN
-
SFO
1 stop19h 21m
Hawaiian Airlines
Wed 3/46:30 am
SFO
-
ICN
1 stop19h 05m
Hawaiian Airlines
Deal found 2/11$412
This SmartFares deal was found by Cheapflights users on 2/10. 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.
Sat 2/288:35 pm
ICN
-
SFO
1 stop17h 01m
Multiple Airlines
Fri 3/68:42 am
SFO
-
ICN
1 stop16h 53m
Multiple Airlines
Deal found 2/10$413
This Trip.com deal was found by Cheapflights users on 2/11. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/268:35 pm
ICN
-
SFO
1 stop19h 21m
Hawaiian Airlines
Sun 3/16:30 am
SFO
-
ICN
1 stop19h 05m
Hawaiian Airlines
Deal found 2/11$414
This United Airlines deal was found by Cheapflights users on 2/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/1112:45 pm
ICN
-
SFO
Nonstop10h 45m
United Airlines
Mon 3/211:45 pm
SFO
-
ICN
Nonstop12h 55m
United Airlines
Deal found 2/10$415
This United Airlines deal was found by Cheapflights users on 2/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/2312:45 pm
ICN
-
SFO
Nonstop10h 45m
United Airlines
Sun 3/810:30 am
SFO
-
ICN
Nonstop12h 45m
United Airlines
Deal found 2/9$416
This United Airlines deal was found by Cheapflights users on 2/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/2312:45 pm
ICN
-
SFO
Nonstop10h 45m
United Airlines
Wed 2/2510:30 am
SFO
-
ICN
Nonstop12h 45m
United Airlines
Deal found 2/11$417
This Air Canada deal was found by Cheapflights users on 2/10. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/305:45 pm
ICN
-
SFO
2 stops34h 23m
Air Canada
Fri 7/2412:50 pm
SFO
-
ICN
2 stops35h 15m
Air Canada
Deal found 2/10$418
This Air Canada deal was found by Cheapflights users on 2/11. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/155:45 pm
ICN
-
SFO
1 stop31h 32m
Air Canada
Thu 7/2312:50 pm
SFO
-
ICN
2 stops35h 15m
Air Canada
Deal found 2/11$419
This Kiwi.com deal was found by Cheapflights users on 2/11. 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.
Fri 3/208:35 pm
ICN
-
SFO
1 stop19h 24m
Multiple Airlines
Sun 4/56:30 am
SFO
-
ICN
1 stop20h 05m
Multiple Airlines
Deal found 2/11$420
This Trip.com deal was found by Cheapflights users on 2/11. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/288:35 pm
ICN
-
SFO
1 stop28h 45m
Multiple Airlines
Wed 4/89:59 am
SFO
-
ICN
1 stop16h 36m
Multiple Airlines
Deal found 2/11$421
This Air Canada deal was found by Cheapflights users on 2/10. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/115:45 pm
ICN
-
SFO
2 stops34h 28m
Multiple Airlines
Fri 5/157:30 pm
SFO
-
ICN
2 stops26h 35m
Multiple Airlines
Deal found 2/10$422
This Kiwi.com deal was found by Cheapflights users on 2/11. 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.
Fri 3/138:35 pm
ICN
-
SFO
1 stop17h 20m
Multiple Airlines
Sat 4/48:59 pm
SFO
-
ICN
1 stop29h 36m
Multiple Airlines
Deal found 2/11$423

Find flight deals from Seoul to San Francisco

Discover tips and strategies to find the most affordable flight options for your journey from Seoul (SEL) to San Francisco (SFO). 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 February 12, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$412
(Trip.com)

One-way from

$321
(KAYAK)

Popular in

August

Cheapest in

November

Average price

$506

Good round-trip deal

$502 or less

Good one-way deal

$383 or less
Provider with most accurate pricing for Seoul (SEL)-San Francisco flight deals.
Provider most trusted by Cheapflights users for Seoul (SEL)-San Francisco flights.
From Seoul (SEL) to San Francisco
One-way flight from Seoul (SEL) to San Francisco
Highest demand for flights based on searches. 17% potential increase in price ($139 potential increase over avg. RT price).
Cheapest flight prices on average. 4% potential price decrease ($26 potential savings vs. average RT price).
Average for round-trip flights in February 2026
Price to beat on a round-trip flight from Seoul (SEL) to San Francisco.
Price to beat on a one-way flight from Seoul (SEL) to San Francisco.

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seoul to San Francisco 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 February 12, 2026.
Use the filters below to find and compare flights from Seoul to San Francisco that are best for you.

Fly from

Seoul

Fly to

San Francisco

Route

Depart

Return

Price

IncheonSan Francisco

ICN - SFO

ICNSFO

Incheon Intl

Sat 3/28

8:35 pm-7:30 am

2 stops26h 55m

San Francisco

Sat 4/4

8:59 pm-6:35 pm

1 stop29h 36m

$605

IncheonSan Francisco

ICN - SFO

ICNSFO

Incheon Intl

Wed 5/6

7:35 pm-9:23 pm

1 stop17h 48m

San Francisco

Fri 8/14

6:00 am-5:30 pm

1 stop19h 30m

$663

IncheonSan Francisco

ICN - SFO

ICNSFO

Incheon Intl

Sun 5/3

7:35 pm-7:40 am

2 stops28h 05m

San Francisco

Sat 8/8

8:46 pm-5:30 pm

2 stops28h 44m

$664

IncheonSan Francisco

ICN - SFO

ICNSFO

Incheon Intl

Sun 5/3

7:35 pm-7:40 am

2 stops28h 05m

San Francisco

Tue 8/11

8:46 pm-5:30 pm

2 stops28h 44m

$664

IncheonSan Francisco

ICN - SFO

ICNSFO

Incheon Intl

Sat 2/21

8:35 pm-9:55 pm

1 stop18h 20m

San Francisco

Sun 3/8

6:30 am-6:35 pm

1 stop20h 05m

$669

IncheonSan Francisco

ICN - SFO

ICNSFO

Incheon Intl

Thu 3/5

12:45 pm-6:30 am

Nonstop10h 45m

San Francisco

Mon 4/13

11:40 pm-4:20 am

Nonstop12h 40m

$696

IncheonSan Francisco

ICN - SFO

ICNSFO

Incheon Intl

Thu 5/7

11:30 am-6:15 am

Nonstop10h 45m

San Francisco

Wed 8/12

10:40 am-3:00 pm

Nonstop12h 20m

$699

IncheonSan Francisco

ICN - SFO

ICNSFO

Incheon Intl

Sat 2/21

12:45 pm-6:30 am

Nonstop10h 45m

San Francisco

Tue 3/3

10:30 am-4:15 pm

Nonstop12h 45m

$705

IncheonSan Francisco

ICN - SFO

ICNSFO

Incheon Intl

Fri 4/24

7:00 pm-9:22 am

1 stop30h 22m

San Francisco

Sun 5/3

12:40 pm-5:20 pm

Nonstop12h 40m

$740

IncheonSan Francisco

ICN - SFO

ICNSFO

Incheon Intl

Sat 2/21

6:55 pm-12:30 pm

Nonstop10h 35m

San Francisco

Fri 3/6

2:30 pm-8:30 pm

Nonstop13h 00m

$744

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/10

Showing 1-10 of 47 results
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Compare providers for flights from Seoul to San Francisco

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 Seoul to San Francisco in February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars
CheapflightsfaresPrice Accuracy2 starsTrust Score*2 stars
SmartFaresPrice Accuracy1 starTrust Score*1 star

*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 Seoul-San Francisco flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seoul-San Francisco flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seoul-San Francisco flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seoul-San Francisco 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 Seoul-San Francisco 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 Seoul to San Francisco

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

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

Use this chart to determine the optimal time to book a round-trip flight from Seoul to San Francisco. Price data was last updated on February 6, 2026.

Booking 15 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seoul to San Francisco. 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 Seoul to San Francisco?

Currently, February is the cheapest month in which you can book a flight from Seoul to San Francisco (average of $358). Flying from Seoul to San Francisco in August is currently the most expensive (average of $630). 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 SEL to SFO?

Find hourly flight availability from Seoul to San Francisco. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 12, 2026.

A simple way to save on the total cost of your ticket is to fly from Seoul to San Francisco at noon. If you’re flexible enough to do this you can expect to save up to 33% on your trip compared to booking a flight in the morning.

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

Use this chart to determine the cheapest time to fly round-trip from Seoul to San Francisco. Price data was last updated on February 7, 2026.

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

Weekly flight availability from Seoul to San Francisco

Explore weekly flight availability from Seoul to San Francisco. 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 February 12, 2026.

The most flights from SEL to SFO are scheduled on a Monday (11 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (8 on average).

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

The best insider tips for Seoul to San Francisco 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 Seoul to San Francisco trip
Our travel experts
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.

Harriet Baskas

Harriet Baskas

Expert on United Airlines and 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.

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.

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.

Reviews of airlines servicing San Francisco

Get insights into the airlines that provide service to San Francisco. 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 San Francisco. Reviews last updated February 12, 2026.
Peruse reviews from past customers who have flown with Korean Air, AIR PREMIA, and Asiana Airlines from Seoul to San Francisco to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Overall

8.4

Comfort

8.3

Crew

8.7

Entertainment

8.2

Food

8.1

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!

Overall

8.4

Comfort

8.3

Crew

8.7

Entertainment

8.2

Food

8.1

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!

Overall

8.4

Comfort

8.3

Crew

8.7

Entertainment

8.2

Food

8.1

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!

Overall

8.4

Comfort

8.3

Crew

8.7

Entertainment

8.2

Food

8.1

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!

Overall

8.4

Comfort

8.3

Crew

8.7

Entertainment

8.2

Food

8.1

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!

Overall

8.4

Comfort

8.3

Crew

8.7

Entertainment

8.2

Food

8.1

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!

Related info for your journey

Find useful and relevant information for your journey from Seoul to San Francisco. 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 into for flights to San Francisco from Seoul?

    San Francisco (SFO) is the airport you will fly into if you book a flight from Seoul to San Francisco. You should not have trouble finding flights to San Francisco from Seoul; the airport handles an average of 10 inbound flights from Seoul per day. You should also have plenty of airline options to choose from since 6 airlines have flights to the San Francisco airport from Seoul. It is only a 11.8 mi journey from San Francisco (SFO) to San Francisco’s city center.

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

    A quick flight from Seoul to San Francisco can take about 17h 48m. Alaska Airlines provides one of the quickest options available for as low as $663. The distance from Seoul to San Francisco is about 5642 mi. This flight may include one or multiple stops.

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

    Air Canada, at $381, was found to be the cheapest airline from Seoul to San Francisco.Alternate airlines to your destination round-trip include United Airlines and Korean Air. These flights start at 40% lower than the current average price 3 months from now.

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

    One-way options have recently been found by users for as low as $248 on Hawaiian Airlines. Other airlines that offer cheap prices include AIR PREMIA from $277 and United Airlines from $313 one-way.

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

    The top 3 most reliable airlines when flying from Seoul to San Francisco are AIR PREMIA (73%), Delta (69%) and Korean Air (69%).

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

    Looking at all options, your cheapest flight can be booked for $322. While the most popular route (Incheon Intl - San Francisco) can be booked for $415 on average, our data indicates $1,262 when flying from Seoul to San Francisco.

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

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

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

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

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

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

    Currently, February is the cheapest month in which you can book a flight from Seoul to San Francisco (average of $358). Flying from Seoul to San Francisco in August is currently the most expensive (average of $630). 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

Traveling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Santa Cruz
South San Francisco
Santa Clara
Roseville
Livermore
Watsonville
San Bruno
Daly City
Sunnyvale
Turlock
Vacaville
San Carlos
San Ramon
Redwood City
Rancho Cordova
San Lorenzo
Davis
Hollister
Manteca
Union City

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 6 airlines flying from Seoul to San Francisco

Discover the top 6 airlines that operate flights from Seoul to San Francisco. 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 February 12, 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$381Average$502FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$404Average$511FlexibilityNo cancel feeOn-time69%
Korean AirCheapest$448Average$622FlexibilityNo cancel feeOn-time81%
Asiana AirlinesCheapest$450Average$578FlexibilityNo cancel feeOn-time76%
AIR PREMIACheapest$477Average$654FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$595Average$743FlexibilityNo cancel feeOn-timeN/A

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