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$535+ Cheap flights from Incheon Intl (ICN) 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 7/18. Fares are subject to change and may not be available on all flights or dates of travel.
ICN — SFO
Aug 6 — Aug 131
Thu 8/6
Thu 8/13
1 adult, Economy
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Find cheap flights from Incheon Intl to San Francisco with Cheapflights

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Cheapflights Tip: The best prices from Incheon Intl to San Francisco are usually found in December or February, booked 66 days in advance, depart on a Tuesday or Wednesday and return on a Monday

Cheap flight deals from Incheon Intl to San Francisco

Cheapest flights from Incheon Intl to San Francisco
Explore the most affordable flight options available from Incheon Intl to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 7, 2026.

This SmartFares 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/77:15 pm
ICN
-
SFO
Nonstop11h 00m
AIR PREMIA
Wed 10/215:00 pm
SFO
-
ICN
Nonstop12h 40m
AIR PREMIA
Deal found 7/3$703
This SmartFares 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/266:00 pm
ICN
-
SFO
Nonstop11h 00m
AIR PREMIA
Sat 10/33:30 pm
SFO
-
ICN
Nonstop12h 40m
AIR PREMIA
Deal found 7/2$704
This SmartFares 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/187:15 pm
ICN
-
SFO
Nonstop11h 00m
AIR PREMIA
Sun 11/12:30 pm
SFO
-
ICN
Nonstop13h 00m
AIR PREMIA
Deal found 7/6$705
This Agoda.com deal was found by Cheapflights users on 7/4. 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 Agoda.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/197:15 pm
ICN
-
SFO
Nonstop11h 00m
AIR PREMIA
Mon 10/263:30 pm
SFO
-
ICN
Nonstop13h 00m
AIR PREMIA
Deal found 7/4$708
This Agoda.com 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 Agoda.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/97:15 pm
ICN
-
SFO
Nonstop11h 00m
AIR PREMIA
Mon 10/125:00 pm
SFO
-
ICN
Nonstop12h 40m
AIR PREMIA
Deal found 7/6$710
This Vliegwinkel 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 Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/226:00 pm
ICN
-
SFO
Nonstop11h 00m
AIR PREMIA
Mon 9/75:00 pm
SFO
-
ICN
Nonstop12h 40m
AIR PREMIA
Deal found 7/5$723
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/97:15 pm
ICN
-
SFO
Nonstop11h 00m
AIR PREMIA
Wed 9/235:00 pm
SFO
-
ICN
Nonstop12h 40m
AIR PREMIA
Deal found 7/3$725
This Agoda.com deal was found by Cheapflights users on 7/4. 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 Agoda.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/27:15 pm
ICN
-
SFO
Nonstop11h 00m
AIR PREMIA
Mon 10/55:00 pm
SFO
-
ICN
Nonstop12h 40m
AIR PREMIA
Deal found 7/4$728
This Agoda.com deal was found by Cheapflights users on 7/4. 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 Agoda.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/47:15 pm
ICN
-
SFO
Nonstop11h 00m
AIR PREMIA
Mon 9/145:00 pm
SFO
-
ICN
Nonstop12h 40m
AIR PREMIA
Deal found 7/4$730
This YBTour deal was found by Cheapflights users on 7/4. 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 YBTour is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/316:55 pm
ICN
-
SFO
Nonstop10h 35m
AIR PREMIA
Mon 11/302:30 pm
SFO
-
ICN
Nonstop13h 00m
AIR PREMIA
Deal found 7/4$731
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 10/106:00 pm
ICN
-
SFO
Nonstop11h 00m
AIR PREMIA
Sun 10/253:30 pm
SFO
-
ICN
Nonstop13h 00m
AIR PREMIA
Deal found 7/3$732

Find flight deals from Incheon Intl to San Francisco

Discover tips and strategies to find the most affordable flight options for your journey from Incheon Intl (ICN) 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 July 7, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$703
(SmartFares)

One-way from

$535
(United Airlines)

Popular in

August

Cheapest in

December

Average price

$854

Good round-trip deal

$887 or less

Good one-way deal

$591 or less
Provider with most accurate pricing for Incheon Intl-San Francisco flight deals.
Search Deals
Provider most trusted by Cheapflights users for Incheon Intl-San Francisco flights.
Search Deals
From Incheon Intl to San Francisco
Search Deals
One-way flight from Incheon Intl to San Francisco
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($121 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($20 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 Incheon Intl to San Francisco.
Search Deals
Price to beat on a one-way flight from Incheon Intl to San Francisco.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Incheon Intl 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 July 7, 2026.
Use the filters below to find and compare flights from Incheon Intl Airport to San Francisco that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

IncheonSan Francisco

ICN - SFO

ICNSFO

Incheon Intl

Sat 9/26

5:15 pm-9:14 am

1 stop31h 59m

San Francisco

Sat 10/3

11:45 pm-4:20 am

Nonstop12h 35m

$781

IncheonSan Francisco

ICN - SFO

ICNSFO

Incheon Intl

Fri 12/18

6:00 pm-11:45 am

Nonstop10h 45m

San Francisco

Fri 1/8

11:45 pm-5:40 am

Nonstop12h 55m

$784

IncheonSan Francisco

ICN - SFO

ICNSFO

Incheon Intl

Tue 10/20

11:30 am-6:10 am

Nonstop10h 40m

San Francisco

Sat 10/24

9:15 pm-3:25 pm

1 stop26h 10m

$791

IncheonSan Francisco

ICN - SFO

ICNSFO

Incheon Intl

Fri 10/16

4:50 pm-11:40 am

Nonstop10h 50m

San Francisco

Mon 10/26

9:30 pm-3:25 pm

1 stop25h 55m

$791

IncheonSan Francisco

ICN - SFO

ICNSFO

Incheon Intl

Thu 10/22

4:50 pm-11:40 am

Nonstop10h 50m

San Francisco

Mon 10/26

11:30 am-4:15 pm

Nonstop12h 45m

$791

IncheonSan Francisco

ICN - SFO

ICNSFO

Incheon Intl

Sun 8/30

8:30 pm-9:10 pm

1 stop40h 40m

San Francisco

Sat 9/26

12:30 am-6:00 am

1 stop37h 30m

$834

IncheonSan Francisco

ICN - SFO

ICNSFO

Incheon Intl

Mon 8/17

7:20 am-9:10 pm

1 stop29h 50m

San Francisco

Sat 10/3

12:30 am-6:00 am

1 stop37h 30m

$887

IncheonSan Francisco

ICN - SFO

ICNSFO

Incheon Intl

Thu 9/3

7:35 pm-9:30 pm

1 stop17h 55m

San Francisco

Fri 9/25

9:03 am-5:30 pm

1 stop16h 27m

$900

IncheonSan Francisco

ICN - SFO

ICNSFO

Incheon Intl

Wed 9/2

7:35 pm-9:37 am

1 stop30h 02m

San Francisco

Sun 9/6

7:22 pm-5:30 pm

1 stop30h 08m

$901

IncheonSan Francisco

ICN - SFO

ICNSFO

Incheon Intl

Wed 10/21

8:25 am-10:35 am

1 stop18h 10m

San Francisco

Wed 10/28

11:30 am-4:15 pm

Nonstop12h 45m

$913

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/7

Showing 1-10 of 23 resultsSorted by cheapest first
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Compare providers for flights from Incheon Intl 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 Incheon Intl to San Francisco in July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy2 starsTrust Score*1 star
GurufarePrice Accuracy3 starsTrust Score*3 stars
BusinessClassPrice Accuracy-Trust Score*3 stars
oojoPrice Accuracy3 starsTrust Score*2 stars
JetabroadPrice Accuracy3 starsTrust 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 Incheon Intl Airport-San Francisco flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Incheon Intl Airport-San Francisco flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Incheon Intl Airport-San Francisco flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Incheon Intl Airport-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 Incheon Intl Airport-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 Incheon Intl to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Incheon Intl 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 Incheon Intl Airport to San Francisco

How far ahead should I book a flight from Incheon Intl Airport to San Francisco?

The price you pay for your flight from Incheon Intl Airport to San Francisco may vary depending on when you book. For the best chance of a lower fare, look to book 65 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Incheon Intl Airport to San Francisco?

Currently, December is the cheapest month in which you can book a flight from Incheon Intl Airport to San Francisco (average of $541). Flying from Incheon Intl Airport to San Francisco in August is currently the most expensive (average of $885). 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 ICN to SFO?

Find hourly flight availability from Incheon Intl 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 July 7, 2026.

When flying from Incheon Intl Airport to San Francisco, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost to fly round-trip from Incheon Intl Airport to San Francisco?

The best insider tips for Incheon Intl Airport 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 Incheon Intl Airport to San Francisco trip
Our travel experts
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.

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
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
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

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 July 7, 2026.
See what other customers who have flown with Korean Air,AIR PREMIA, andAsiana Airlines from Incheon Intl Airport to San Francisco have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,221 reviews

Overall

8.4

Comfort

8.3

Entertainment

8.2

Crew

8.7

Boarding

8.5

Food

8.1

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

Overall

8.4

Comfort

8.3

Entertainment

8.2

Crew

8.7

Boarding

8.5

Food

8.1

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!!
AIR PREMIA
8.2
Very good
99 reviews
Korean Air
8.4
Very good
1,221 reviews

Overall

8.4

Comfort

8.3

Entertainment

8.2

Crew

8.7

Boarding

8.5

Food

8.1

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!!
Asiana Airlines
8.1
Very good
550 reviews
Korean Air
8.4
Very good
1,221 reviews

Overall

8.4

Comfort

8.3

Entertainment

8.2

Crew

8.7

Boarding

8.5

Food

8.1

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!!
United Airlines
7.4
Good
9,945 reviews
Korean Air
8.4
Very good
1,221 reviews

Overall

8.4

Comfort

8.3

Entertainment

8.2

Crew

8.7

Boarding

8.5

Food

8.1

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!!
Air Canada
7.1
Good
11,314 reviews
Korean Air
8.4
Very good
1,221 reviews

Overall

8.4

Comfort

8.3

Entertainment

8.2

Crew

8.7

Boarding

8.5

Food

8.1

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 Incheon Intl 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 Incheon Intl?

    For a flight from Incheon Intl to San Francisco, you will be flying into 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 inbound flights from Incheon Intl per day. 5 airlines have flights to San Francisco from Incheon Intl on a regular basis.

  • How long is the flight from Incheon Intl Airport to San Francisco?

    United Airlines can get you from Incheon Intl Airport to San Francisco in just under 31h 59m. Your travel time can differ by up to . The distance from Incheon Intl Airport to San Francisco is about 5642 mi.

  • What are the cheapest airlines flying from Incheon Intl Airport to San Francisco round-trip?

    Flying on Air Canada is currently your cheapest option to San Francisco, with prices starting at $282. Additional round-trip tickets that might be worth considering are offered by United Airlines and AIR PREMIA, with the lowest prices starting at $404 and $476, respectively. These flights start at 57% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Incheon Intl Airport to San Francisco one-way?

    For one-way options, check prices for Hawaiian Airlines. According to our data, you can fly for as low as $248. Users have also found prices from $295 and $315 on AIR PREMIA and United Airlines, respectively.

  • What are the most reliable airlines from Incheon Intl Airport to San Francisco?

    Consider AIR PREMIA (97%), Delta (87%) or Korean Air (87%) when booking your flight. These represent the most reliable airlines when flying from Incheon Intl Airport to San Francisco.

  • What are the cheapest flights from Incheon Intl Airport to San Francisco?

    While on average a flight from Incheon Intl Airport to San Francisco is generally $1,851, our data shows the cheapest flight currently is $523. When looking at the most popular route, (Incheon Intl - San Francisco), you can expect to pay $704 for that flight.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Incheon Intl 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 Incheon Intl Airport to San Francisco?

    Currently, December is the cheapest month in which you can book a flight from Incheon Intl Airport to San Francisco (average of $541). Flying from Incheon Intl Airport to San Francisco in August is currently the most expensive (average of $885). 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
South San Francisco
Santa Clara
Santa Cruz
Fairfield
Burlingame
Redwood City
Rancho Cordova
Roseville
Cupertino
Emeryville
Newark
San Bruno
Watsonville
Hayward
San Ramon
San Carlos
Turlock
Vallejo
San Lorenzo
Davis

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Alternative routes for Incheon Intl to San Francisco

See prices for flight routes from nearby airports that may be better suited for you.
Incheon Intl to Los Angeles flights
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Top 5 airlines flying from Incheon Intl to San Francisco

Discover the top 5 airlines that operate flights from Incheon Intl 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 July 7, 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$282Average$388FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$404Average$503FlexibilityNo cancel feeOn-time69%
AIR PREMIACheapest$476Average$687FlexibilityNo cancel feeOn-timeN/A
Asiana AirlinesCheapest$493Average$691FlexibilityNo cancel feeOn-time76%
Korean AirCheapest$585Average$683FlexibilityNo cancel feeOn-time81%

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