SFO - SEL

$325 Find Cheap Flights from San Francisco to Seoul - Compare and Save

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Everything you should know

Cheapest round-trip
$643
Typical prices: $697-$1,180
AIR PREMIA
Mon 3/5Sat 3/10
SFO - ICN • Non-stop
Cheapest one-way
$325
Typical prices: $375-$785
AIR PREMIA
Tue 11/6
SFO - ICN • Non-stop
Advice from real travelers
AIR PREMIA economy offers 33-35 inches of legroom, more than most airlines.
United Economy Plus and Asiana Economy Smartium add extra legroom on this route.
Expert advice
+1
Expert advice
+1
Nonstop flights
You can fly direct with United Airlines, Korean Air and others. Average duration is 12h 50m.
Direct flights
+1
Direct flights
+1
Top routes
Cheapest • 19% average savings
Most popular
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 8 weeks in advance save around 10% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 18% price drop
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Cheapest • Avg $638 (round-trip)
Shortest trip • 15h 56m (one-way)
Insights
Insights
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We hope you love your trip to Seoul!
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Booking Insights
Expert advice
Flight Deals

Cheap Flights from San Francisco to Seoul (SFO-SEL)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from San Francisco to Seoul

Wed, Nov 4 - Wed, Nov 18
AIR PREMIA Logo
3:20 pm - 9:20 pmSFO  San Francisco-ICN Incheon Intl
13h 00mnonstop
AIR PREMIA Logo
7:45 pm - 1:20 pmICN  Incheon Intl-SFO San Francisco
10h 35mnonstop
$640AIR PREMIA
Sun, Jan 10 - Wed, Feb 24
AIR PREMIA Logo
3:20 pm - 9:20 pmSFO  San Francisco-ICN Incheon Intl
13h 00mnonstop
AIR PREMIA Logo
7:45 pm - 1:20 pmICN  Incheon Intl-SFO San Francisco
10h 35mnonstop
$643AIR PREMIA
Thu, Sep 24 - Tue, Oct 6
United Airlines Logo
11:45 pm - 4:20 amSFO  San Francisco-ICN Incheon Intl
12h 35mnonstop
United Airlines Logo
11:30 am - 6:10 amICN  Incheon Intl-SFO San Francisco
10h 40mnonstop
$654United Airlines
Wed, Sep 30 - Sat, Oct 10
United Airlines Logo
10:25 am - 3:00 pmSFO  San Francisco-ICN Incheon Intl
12h 35mnonstop
United Airlines Logo
4:50 pm - 11:40 amICN  Incheon Intl-SFO San Francisco
10h 50mnonstop
$654United Airlines
Thu, Oct 29 - Thu, Nov 5
Lufthansa Logo
11:45 pm - 4:40 amSFO  San Francisco-ICN Incheon Intl
12h 55mnonstop
Lufthansa Logo
6:00 pm - 11:45 amICN  Incheon Intl-SFO San Francisco
10h 45mnonstop
$659Lufthansa
Wed, Nov 18 - Tue, Nov 24
Air China Logo
12:00 pm - 11:40 amSFO  San Francisco-ICN Incheon Intl
30h 40m1 stop Beijing Capital
Air China Logo
1:10 pm - 9:30 amICN  Incheon Intl-SFO San Francisco
37h 20m1 stop Beijing Capital
$661Air China
Thu, Oct 1 - Mon, Oct 5
Asiana Airlines Logo
10:25 am - 3:00 pmSFO  San Francisco-ICN Incheon Intl
12h 35mnonstop
Asiana Airlines Logo
4:50 pm - 11:40 amICN  Incheon Intl-SFO San Francisco
10h 50mnonstop
$669Asiana Airlines
Tue, Sep 29 - Sun, Oct 4
Asiana Airlines Logo
11:45 pm - 4:20 amSFO  San Francisco-ICN Incheon Intl
12h 35mnonstop
Asiana Airlines Logo
11:30 am - 6:10 amICN  Incheon Intl-SFO San Francisco
10h 40mnonstop
$684Asiana Airlines
Mon, Nov 16 - Thu, Dec 17
ANA Logo
11:59 pm - 4:25 pmSFO  San Francisco-ICN Incheon Intl
23h 26m1 stop Newark
ANA Logo
12:45 pm - 6:30 amICN  Incheon Intl-SFO San Francisco
10h 45mnonstop
$707ANA
Sat, Nov 7 - Fri, Nov 13
ANA Logo
10:55 pm - 4:25 pmSFO  San Francisco-ICN Incheon Intl
24h 30m1 stop Newark
ANA Logo
12:45 pm - 6:30 amICN  Incheon Intl-SFO San Francisco
10h 45mnonstop
$707ANA
Booking Insights

Price, demand and travel trends for San Francisco to Seoul flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from San Francisco to Seoul with more confidence.

How much is a round-trip flight from San Francisco to Seoul?

Round-trip flights from San Francisco to Seoul start at $643. Prices are below average for this route right now, with typical round-trip fares ranging from $697 to $1,180. The lowest price found in the past 5 days was $643 on AIR PREMIA.

What is the cheapest San Francisco to Seoul flight route?

San Francisco (SFO) to Incheon Intl Airport (ICN) is the cheapest San Francisco to Seoul route, averaging $836 round-trip. Other San Francisco to Seoul routes average $1,235, based on KAYAK data over the past 12 months.

What's the cheapest day of the week to fly from San Francisco to Seoul?

Sunday is the cheapest day of the week to fly from San Francisco to Seoul, it is 4% cheaper than the average day. Saturday is the most expensive day with flight prices 13% higher than average. Based on deals found by KAYAK users in the last 12 months.

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

  • February is the cheapest month to fly from San Francisco to Seoul at $686 round-trip.
  • June ($1,366) and December ($1,098) are the most expensive months.
  • The price difference between flying in the cheapest and most expensive months is 99% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are prices from San Francisco to Seoul the cheapest?

Flights from San Francisco to Seoul are cheapest 8 weeks before departure. Booking in this window typically costs about 10% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Expert advice

Expert advice for your flight from San Francisco to Seoul

 
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
John Walton

John Walton

Expert on AIR PREMIA and Asiana Airlines

Independent aviation journalist John Walton took his first flight at eight weeks old and hasn’t stopped travelling since. A world-renowned expert in airlines and the passenger experience, he writes in depth on aviation, is a resident expert on travel in Japan and France, and offers a uniquely queer perspective on travelling the world.

Stefanie Waldek

Stefanie Waldek

Expert on United Airlines

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Robert Schrader

Robert Schrader

Expert on Korean Air and ICN

One of the web's original travel bloggers, Robert launched his first site Leave Your Daily Hell in 2009. Since then, he's expanded into destination niche sites (one each for Japan, Thailand and Taiwan), in addition to having written for the inflight magazines of Singapore Airlines and Korean Air. Overall, he's visited nearly 100 countries, and flies business as often as possible.

Blane Bachelor

Blane Bachelor

Expert on SFO

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Key details for San Francisco to Seoul flights

Low season

January

Cheapest flight

$325
Best time to beat the crowds with an average 15% drop in price.
Most popular time to fly and prices are also 7% lower on average.
Flight from San Francisco to Incheon Intl Airport

When to book flights from San Francisco to Seoul

Are your dates flexible? Find out the best times to travel from San Francisco to Seoul based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Flights from San Francisco to Seoul: the best tips from KAYAK users' own experiences

Insights shared by verified travelers who flew the route from San Francisco to Seoul 
Verified travelerFlew with Asiana Airlines-Mar 2026
Walk straight to arrivals upon getting to Incheon, and take their airport bus route if convenient.
DexterFlew with Asiana Airlines-Feb 2026
If traveling with toddlers or picky eaters, make sure you feed or buy food your kids will eat. Leaving San Francisco my kids didn’t eat any of the food coming from the SFO airport.

Your San Francisco to Seoul flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • What are the pet policies of Korean Air for passengers flying from San Francisco to Seoul?

    Korean Air has specific pet policies for passengers flying from San Francisco to Seoul. They allow pets to be transported as checked baggage or as cargo. For checked baggage, the maximum weight limit for pets and carriers combined is generally 70 lbs.

  • What are the public transportation options available from Incheon International Airport to the city center of Seoul?

    From Incheon International Airport, several public transportation options are available to reach the city center of Seoul. These include the Airport Railroad Express (AREX), which provides direct train service to major city destinations, and the airport limousine buses that offer convenient and affordable transportation to various locations within Seoul. Taxis and ride-hailing services are also available for a more personalized and convenient option.

  • What are the specific baggage policies for passengers traveling from San Francisco to Seoul on Korean Air?

    Korean Air's baggage policies for passengers flying from San Francisco to Seoul typically include a checked baggage allowance based on the ticket class. For most economy class passengers, the allowance is one checked bag weighing up to 50 lbs. Business class passengers usually have an allowance of two checked bags, each weighing up to 70 lbs.

  • What entertainment options does Korean Air have for passengers flying from San Francisco to Seoul?

    Korean Air offers a range of entertainment options for passengers flying from San Francisco to Seoul. Travelers can enjoy a wide selection of movies, TV shows, and music through the in-flight entertainment system. The system includes individual seat screens with a user-friendly interface. Additionally, Korean Air provides an assortment of gaming options to keep passengers entertained during the flight.

  • Which airlines offer extra legroom and free seat selection on San Francisco to Seoul flights?

    Among airlines operating San Francisco to Seoul flights:

    • AIR PREMIA: offers free seat selection
    • United Airlines: offers extra legroom; offers free seat selection
    • Asiana Airlines: offers free seat selection
    • Korean Air: offers extra legroom; offers free seat selection
    • Delta: offers extra legroom; offers free seat selection

    Extra legroom and free seat selection availability depends on fare class and route.

  • What airlines are available from San Francisco to Seoul?

    4 airlines operate flights between San Francisco and Seoul. The airlines offering nonstop flights on this route include:

    • United Airlines
    • Korean Air
    • Asiana Airlines
    • AIR PREMIA

  • Which airports can I use when flying from San Francisco to Seoul?

    Flights from San Francisco to Seoul usually depart from San Francisco (SFO) and may arrive at several airports in Seoul area, including Seoul Gimpo Intl (GMP) and Incheon Intl (ICN).

  • Which airlines include bags at no extra cost on San Francisco to Seoul flights?

    Here are some options for this route, based on selected ticket types and cabin classes:

    • AIR PREMIA: a cabin bag and a checked bag in Economy Class
    • United Airlines: a cabin bag and a checked bag in Economy Class
    • Asiana Airlines: a cabin bag and a checked bag in Economy Class

    Bag allowance can vary by ticket type, cabin class, route and airline, so travelers should check the fare details before booking.

  • What cabin classes can I book on flights from San Francisco to Seoul?

    Four cabin classes are available on flights from San Francisco to Seoul:

    • Economy Class
    • Premium Economy Class
    • Business Class
    • First Class

    Prices vary by airline.

  • How much can I save by taking a layover when flying from San Francisco to Seoul?

    On this route, layover flights are cheaper than nonstop options on average. Layover fares average $638 round-trip via Manila Ninoy Aquino Intl (MNL), compared to $824 for nonstop.

  • What is the standard checked-bag allowance on flights from San Francisco to Seoul?

    There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $56–$100 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

  • Which airports do connecting flights from San Francisco to Seoul pass through?

    One-stop flights from San Francisco to Seoul most commonly connect through:

    • Vancouver Intl (YVR) - 33% of one-stop connections
    • Seattle/Tacoma Intl (SEA) - 18% of one-stop connections
    • Taipei City Taiwan Taoyuan Intl (TPE) - 11% of one-stop connections
    • Manila Ninoy Aquino Intl (MNL) - 10% of one-stop connections

    Vancouver Intl (YVR) handles the largest share of one-stop connections on this route.

  • Can I save money by using flexible dates for flights from San Francisco to Seoul?

    On the San Francisco to Seoul route, being flexible with your departure day can save you up to 16%. Sunday is the cheapest day at $805 round-trip on average, while Saturday is the most expensive at $948: a $143 difference. Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

  • How are flight departures from San Francisco to Seoul spread across the day?

    Night is the busiest departure period on San Francisco to Seoul flights, with 50% of flights leaving in that window. Morning departures account for 25%, afternoon flights for 25%, and evening flights for 0%.

  • What popular places can I visit in Seoul?

    Some of the most popular sights in Seoul are Hongdae Area, Myeongdong Shopping Street and Seoul Station. These are among the most viewed places in Seoul on KAYAK.

  • What are the earliest and latest flights from San Francisco to Seoul?

    These are the earliest and latest flight times available from San Francisco to Seoul:

    • Earliest: departs at 10:20 am and lands at 11:10 pm
    • Latest: departs at 11:55 pm and lands at 12:45 pm.

    The flight takes about 12h 50m.

  • How expensive are last-minute San Francisco to Seoul flights?

    Last-minute fares on this route - booked within 2 weeks of departure - run 4% above the route average of $838. Book 8 weeks before departure for the lowest fares.

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

    A nonstop flight from San Francisco to Seoul takes 12h 50m, covering 5,615 miles.

  • Do I need a passport to fly from San Francisco to Seoul?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How are flight prices from San Francisco to Seoul looking right now?

    One-way fares from San Francisco to Seoul are currently lower than usual. Average one-way flight prices are about $363, which is 34% below the typical average for this route.

  • How much time can I save by choosing a different layover airport from San Francisco to Seoul?

    Flying via Vancouver Intl (YVR) gives the shortest average 1-stop total travel time at 15h 56m, compared with 17h 07m via Tokyo Haneda (HND) and 17h 32m via Salt Lake City (SLC).

  • What is the time difference between San Francisco and Seoul?

    Seoul is 16 hours ahead of San Francisco (Korean Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

  • What car rental options are available in Seoul?

    Since Seoul is served by multiple airports, car rental options and rates can vary depending on which one you fly into.
    Near Incheon Intl Airport (ICN) — daily rates from around $12:

    • WECAR
    • Wheego
    • Yesaway
    • Alamo
    • Enterprise Rent-A-Car

    Near Seoul Gimpo Intl Airport (GMP) — daily rates from around $12:

    • Yesaway
    • Hi Rent
    • Wheego
    • Europcar
    • Bella Jeju

  • How much should I expect to pay for a San Francisco to Seoul flight?

    Round-trip flights from San Francisco to Seoul range from $697 to $1,180, with an average of $838 over the past 12 months. Anything below $697 counts as a good deal.

  • Which airlines offer Wi-Fi on San Francisco to Seoul flights?

    Asiana Airlines is the only airline on the San Francisco to Seoul route offering in-flight Wi-Fi. Pricing depends on fare class.

Your guide to booking San Francisco to Seoul flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates can be flexible, aim for a Sunday departure instead of Saturday. On this route, Sunday flights average $805 - about $143 less than Saturday (15% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 8 weeks before you fly. On this route, that window historically saves about 10% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your San Francisco to Seoul trip for February. Fares historically average $686 round-trip in that month - typically $680 less than the most expensive month, which is June (based on the last 12 months).
  • If you have the time, taking a 1-stop flight through Manila Ninoy Aquino Intl Airport (MNL) can be cheaper than flying direct. The cheapest layover option averages $638 round-trip on this route - about $186 less than direct flights (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, hotels close to the airport you're flying into can be a convenient option.

    Near Incheon Intl Airport

    · Grand Hyatt Incheon
    · Best Western Premier Incheon Airport
    · Hotel Ora Incheon

    Near Seoul Gimpo Intl Airport

    · Intercity Seoul Hotel
    · Hotel M Felice
    · The First Stay Hotel
  • Common layover destinations for flights from San Francisco to Seoul depend on the airline and routing. For example, Korean Air often has layovers in its hub at Incheon International Airport, Tokyo, Beijing, or Hong Kong.
  • Both San Francisco International Airport (SFO) and Incheon International Airport (ICN) have disability policies in place to assist passengers with disabilities. These policies may include wheelchair assistance, accessible facilities, designated assistance points, and trained staff to provide support and guidance. Passengers with disabilities are encouraged to contact the airports in advance to arrange for any necessary assistance and to ensure a smooth travel experience.
  • San Francisco International Airport (SFO) offers several lounges for passengers flying from San Francisco to Seoul. Some of the notable lounges include the United Polaris Lounge, which provides an upscale and luxurious environment for United Airlines' business and first-class passengers. The Cathay Pacific Lounge offers a comfortable setting with a variety of amenities.
  • U.S. citizens traveling from San Francisco to Seoul typically require a valid passport and a visa to enter South Korea. The type of visa and application process may vary based on the purpose and duration of the trip.
  • Delta Air Lines has specific policies in place for children traveling on flights from San Francisco to Seoul. Infants under the age of two can travel on an adult's lap or have the option to purchase a separate seat with a child fare. Delta also offers discounted fares for children between the ages of 2 and 11.

More options for your flight from San Francisco to Seoul

Complete your trip to Seoul with a hotel stay or car rental