How popular is this San Francisco to Seoul flight route?

Within the past month, 398 users have taken a look at flights from San Francisco to Seoul.

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

United Airlines, at $659, was found to be the cheapest airline from San Francisco to Seoul.Alternate airlines to your destination round-trip include Hawaiian Airlines and Alaska Airlines. United Airlines is priced at 26% 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 $358 on AIR PREMIA. Other airlines that offer cheap prices include Air Canada from $425 and WestJet from $444 one-way.

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 27 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 month to book a flight from San Francisco to Seoul?

Currently, February is the cheapest month in which you can book a flight from San Francisco to Seoul (average of $1,000). Flying from San Francisco to Seoul in December is currently the most expensive (average of $1,635). 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 day to fly from San Francisco to Seoul?

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

Weekly flight availability from San Francisco to Seoul

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).

In terms of precipitation, rainfall in Seoul ranges from 1.1 - 10.0 inches per month. July is typically the wettest month, when rainfall can reach 10.0 in. December is typically the driest time to visit Seoul when rainfall is around 1.1 in.

If weather is an important factor for your trip to Seoul, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 77.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

What are the cheapest flights from San Francisco to Seoul?

While on average a flight from San Francisco to Seoul is generally $2,223, our data shows the cheapest flight currently is $350. When looking at the most popular route, (San Francisco - Incheon Intl), you can expect to pay $606 for that flight.

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

Consider Thai Airways (93%), Singapore Airlines (93%) or AIR PREMIA (89%) when booking your flight. These represent the most reliable airlines when flying from San Francisco to Seoul.

What are the most popular airlines that fly from San Francisco to Seoul?

Consider Air Canada, Alaska Airlines or EVA Air when booking your flight. These represent the most popular airlines when flying from San Francisco to Seoul.

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

Friday flights are found to be more expensive to fly from San Francisco to Seoul. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Seoul.

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

Due to multiple factors, expect to potentially pay more when booking in December. For low rates, February can be a great choice for travel to Seoul. Flights to Seoul from San Francisco in February are about $902 on average during February, but can be found for as low as $639.

What is the cheapest time of day to fly from SFO to SEL?

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 afternoon, which can drop the price by up to 14% versus a flight at noon.

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 11.8 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. 14 airlines have flights to Seoul from San Francisco on a regular basis.

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.

$357+ Flights from San Francisco to Seoul

Round-trip from	$659 (United Airlines)
One-way from	$357 (Kiwi.com)
Popular in	December
Cheapest in	February
Average price	$1,196
Good round-trip deal	$705 or less
Good one-way deal	$412 or less

Air Premia's Premium Economy offers 42-43 inches of legroom, priority boarding, and premium meals.

Economy class on Air Premia provides 35 inches of legroom, ideal for long flights.

Airline	Cheapest	Average	Flexibility	On-time
Hawaiian Airlines	Cheapest$403	Average$888	FlexibilityNo cancel fee	On-time85%
AIR PREMIA	Cheapest$627	Average$836	FlexibilityNo cancel fee	On-timeN/A
China Eastern	Cheapest$651	Average$752	FlexibilityNo cancel fee	On-time62%
Asiana Airlines	Cheapest$655	Average$895	FlexibilityNo cancel fee	On-time76%
United Airlines	Cheapest$660	Average$810	FlexibilityNo cancel fee	On-time69%
Alaska Airlines	Cheapest$675	Average$1,075	FlexibilityNo cancel fee	On-time75%
Korean Air	Cheapest$779	Average$1,007	FlexibilityNo cancel fee	On-time81%
Air Canada	Cheapest$789	Average$955	FlexibilityNo cancel fee	On-time67%
Cathay Pacific	Cheapest$809	Average$880	FlexibilityNo cancel fee	On-time72%
Vietnam Airlines	Cheapest$833	Average$869	FlexibilityNo cancel fee	On-time81%

$357+ 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 8/19. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheapflights Tip: The best prices from San Francisco to Seoul are usually found in February or March, booked 27 days in advance, depart on a Sunday or Monday and return on a Wednesday

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Cheapest flights from San Francisco to SeoulExplore 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 June 12, 2025.

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 June 12, 2025.

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The best insider tips for San Francisco to Seoul flights

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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.

Cheapflights Insights

Everything you need to know about your flight from San Francisco to Seoul

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

Use this chart to determine the optimal time to book a round-trip flight from San Francisco to Seoul. Price data was last updated on June 9, 2025.

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

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 June 12, 2025.

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 December 16, 2024.

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 June 12, 2025.

Rainfall in Seoul by month

Plan your trip to Seoul by taking into account the average rainfall totals by month.

Temperature in Seoul by month

Plan your trip to Seoul by taking into account the average temperature totals by month.

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 June 12, 2025.

Peruse reviews from past customers who have flown with EVA Air, Korean Air and Japan Airlines from San Francisco to Seoul to help guide your decision. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

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?

How popular is this San Francisco to Seoul flight route?

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

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

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

What are the cheapest flights from San Francisco to Seoul?

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

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

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

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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for San Francisco to Seoul

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Top 10 airlines flying from San Francisco to Seoul

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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 June 12, 2025.