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Cheap Flight Deals from San Francisco to Seoul Incheon

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Round TripOne Way
SFO San Francisco
SEL Seoul
From $644.99
Jan 15, 2026 - Jan 25, 2026
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SFO San Francisco
SEL Seoul
From $690.99
Apr 22, 2026 - May 13, 2026
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OAK Oakland
SEL Seoul
From $1087.99
Jan 23, 2026 - Jan 31, 2026
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OAK Oakland
SEL Seoul
From $1233.99
Mar 2, 2026 - Mar 20, 2026
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*All fares above were last found on:
Fares are one way/round trip. Fares incl. all fuel surcharges, taxes & fees and our service fees. Displayed fares are subject to change and cannot be guaranteed at the time of booking. See all booking terms and conditions.

When’s a good time to book a flight from San Francisco to Seoul Incheon?

What’s the cheapest day of the week to fly from San Francisco to Seoul Incheon?‡

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What is the cheapest month to fly from San Francisco to Seoul Incheon?‡

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‡This information is based on historical data from the last 365 days.

Finding Affordable Flights from San Francisco to Seoul Incheon
  • Plan Ahead - One of the keys to securing cheap flights from San Francisco to Seoul Incheon is to plan your trip well in advance. Airlines often offer lower prices for those who book tickets months ahead. Keep an eye on special promotions and sales events, which can yield significant savings.
  • Flexibility is Key - Being flexible with your travel dates can also lead to substantial cost savings. Consider flying during off-peak seasons or on weekdays when prices tend to be lower.
  • Set Price Alerts - To keep tabs on flight prices, consider setting up fare alerts. These alerts will notify you when fares from San Francisco to Seoul Incheon drop, giving you the opportunity to grab cheap deals.
  • Consider Nearby Airports - If Seoul Incheon has multiple airports, check the prices at each one. Sometimes, flying into a nearby airport and then taking a short train or bus ride to your destination can be a much cheaper option.
  • Bundle and Save - Booking your flight and accommodation together as a package can often result in significant savings. CheapOair offers these bundled deals, so make sure to explore this option.

When is the Cheapest Time to Book Flights from San Francisco to Seoul Incheon?

‡

Got flexible travel dates? Use our flight data from the past year to discover ideal times to fly from San Francisco to Seoul Incheon. Find out which months and days typically offer lower fares and score our best savings.

CheapOair provides the predicted prices for one-way trips or round-trips with a duration of 7 days for domestic and 14 days for international trips based on historical data and available flight information. Graphs are estimates only. Prices are subject to change and can't be guaranteed until ticketed.
Estimated price for
Round-trip

‡Graphs are estimates only. Based on historical data and available flight information. Prices are subject to change and cannot be guaranteed until ticketed.

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San Francisco to Seoul Incheon Flight Route Information

Travel Distance:5,650 Miles
Airlines Flying This Route: Asiana Airlines, Korean Air, United Airlines
Weekly Flights:47
Avg. Flight Duration:12.30 Hours

Insights About Flying from San Francisco to Seoul Incheon

Q. Which is the high season to travel from San Francisco to Seoul Incheon?

A. The month of January is considered the high season for flying from SFO to ICN. Traveling during the high season can affect ticket prices and availability, making this data crucial for trip planning.

Q. How many direct flights are available from SFO to ICN?

A. There are a total of 190 direct flights from San Francisco to Seoul Incheon. For travelers seeking convenience and shorter travel times, this data is important when choosing flight options.

Q. Which is the low season to travel from San Francisco to Seoul Incheon?

A. May is considered the low season for traveling from San Francisco to Seoul Incheon, South Korea. Travelers looking for cost-effective options and fewer crowds may consider traveling during this period.

Q. How many daily flights are there between San Francisco to Seoul Incheon?

A. There are as many as 6 daily flights available for travelers between SFO to ICN. This data offers flexibility in choosing departure times that best suit your schedule.

Q. Which is the busiest day for passengers flying between San Francisco to Seoul Incheon?

A. Monday are the busiest days for passengers flying between San Francisco to Seoul Incheon. Knowing the peak travel day can help you plan your trip to avoid overcrowded flights or airports.

Q. At what time does the last flight depart to Seoul Incheon?

A. The last flight to Seoul Incheon typically departs between 11:00PM - 12:00AM. Travelers who prefer late-night departures will find this information valuable for planning their journey.

Q. What percentage of travelers spent an average of 16 days in Seoul Incheon, South Korea?

A. Approximately 37.04% of travelers spent an average of 16 days exploring Seoul Incheon. This information can assist in planning the duration of your stay in Seoul Incheon

Q. What percentage of SFO to ICN flyers traveled with kids under 14?

A. About 6% of passengers on flights from San Francisco to Seoul Incheon were accompanied by children under the age of 14. This information is useful if you're planning a family trip and want to know how common it is to travel with young children on this route.

Q. What percentage of San Francisco to Seoul Incheon travelers were over 60 years old?

A. A notable 22% of travelers were aged 60 or older. This statistic provides insights for senior travelers or those seeking a mature travel demographic.

Q. What percentage of SFO to ICN travelers were millennials?

A. Millennials make up a significant portion of travelers on this route, accounting for 37% of all passengers. If you're a millennial looking to connect with like-minded travelers, this statistic might interest you.

Q. What percentage of San Francisco to Seoul Incheon travelers were female?

A. Almost half of the passengers, approximately 52% were female. Knowing the gender distribution can be useful for solo female travelers or those interested in gender-related travel insights.

Q. On which days one can have the most flight options in Seoul Incheon?

A. Monday offer the most flight options in Seoul Incheon.

§ All flight facts are based on last 3 months' data except the highest and lowest booking months that are based on last 3 months' data.

Cheap Flights from San Francisco to Seoul Incheon

Flights from San Francisco to Seoul Incheon

Looking for flights from San Francisco to Seoul Incheon? Look no more, for you're at the right place. Book cheap flights from San Francisco to Seoul Incheon on CheapOair and enjoy great discounts. Whether its leisure or a business trip, we offer the most competitive rates on flight tickets to destinations around the world. Grab SFO to ICN flight deals, and save big!

Airports in San Francisco

The US city of San Francisco in California is primarily served by San Francisco International Airport. It also serves San Francisco Bay Area and is a major gateway to Europe and Asia. Located 13 miles away from downtown San Francisco, this airport is the largest in Northern California and the second-busiest in California. Passengers can avail scheduled and seasonal flights to several domestic and international destinations from here.

San Francisco International Airport is well-connected to all parts of the city through a superb transportation network comprising a rail network (BART and Caltrain), buses operated by nearby San Mateo County (called SamTrans), shared ride, vans, hotel courtesy shuttles, and taxis.

Explore Seoul and Incheon

Seoul is the capital and largest metropolis of South Korea. This 2000-year-old riverside city along the Han River has played host to 1988 Summer Olympics and 2002 FIFA World Cup. It is South Korea's cultural and financial axis, and a stellar mix of royal palaces, traditional Buddhist temples, and skyscrapers like N Seoul Tower (the former tallest tower in Asia).

The South Korean city of Incheon, located near Seoul, is a vertex of three cities together called Seoul Metro Area. It is country's first free economic zone, and administers a few islands, beaches, several shopping hotspots and a Second World War site.

Things to do in Seoul Incheon

N Seoul Tower (or the Namsan Tower or Seoul Tower)

The N Seoul Tower is a communication and observation tower in central Seoul. It was once the tallest tower in Asia. It is South Korea's first general radio wave tower to provide TV and radio broadcasting services in the city. It tops at 236 meters and is located on Namsan Mountain.

Gyeongbok-gung

Gyeongbok-gung is the first and grandest of Joseon Dynasty-era royal palace. It was razed twice in 1592 and 1910 by Japanese forces and was rebuilt. A masterpiece of Korean architecture, it now hosts the Joseon Palace Museum and the Korean Folk Museum.

Jeondeungsa Temple

Dedciated to Lord Buddha, the Jeondeungsa Temple is the oldest temple in Korea. It was built by three sons of the founder of Korea- Dangun. This temple is located in Ganghwa Island and lies close to the country's border with North Korea.

Best Time to Fly to Seoul Incheon

The best times to fly to Seoul are the winter season from December to February and early spring season in March. Visitors are greeted with colder temperatures and festivals like Hangang Yeouido Spring Flower Festival (in April), Lotus Lantern Festival (in May) and Korean Lunar New Year (in January or February).

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