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Cheap flights from San Francisco to Seoul from $341

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Francisco to Seoul departing on 12/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

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AIR PREMIA Logo
2:30 pm - 8:30 pmSFO-ICN
13h 00mnonstop
AIR PREMIA Logo
6:55 pm - 12:30 pmICN-SFO
10h 35mnonstop
$642AIR PREMIA
Find Deal
Fri, Nov 14 - Mon, Nov 24
Multiple Airlines Logo
10:30 pm - 7:25 pmSFO-ICN
27h 55m1 stop
Multiple Airlines Logo
6:55 pm - 12:30 pmICN-SFO
10h 35mnonstop
$644Multiple Airlines
Find Deal
Tue, Nov 11 - Sun, Nov 23
United Airlines Logo
10:30 am - 4:15 pmSFO-ICN
12h 45mnonstop
United Airlines Logo
6:00 pm - 11:35 amICN-SFO
10h 35mnonstop
$658United Airlines
Find Deal
Thu, Nov 13 - Fri, Nov 21
United Airlines Logo
10:30 am - 4:15 pmSFO-ICN
12h 45mnonstop
United Airlines Logo
12:45 pm - 6:30 amICN-SFO
10h 45mnonstop
$661United Airlines
Find Deal
Wed, Nov 19 - Thu, Dec 4
Alaska Airlines Logo
8:00 am - 6:35 pmSFO-ICN
17h 35m1 stop
Alaska Airlines Logo
8:35 pm - 8:14 pmICN-SFO
16h 39m1 stop
$664Alaska Airlines
Find Deal
Thu, Nov 13 - Sat, Nov 22
Alaska Airlines Logo
11:40 am - 6:35 pmSFO-ICN
37h 55m1 stop
Alaska Airlines Logo
8:35 pm - 11:49 pmICN-SFO
20h 14m1 stop
$666Alaska Airlines
Find Deal
Wed, Nov 12 - Mon, Nov 24
China Eastern Logo
12:00 pm - 3:20 pmSFO-ICN
34h 20m1 stop
China Eastern Logo
4:20 pm - 9:00 amICN-SFO
33h 40m1 stop
$684China Eastern
Find Deal
Mon, Nov 17 - Wed, Dec 17
China Eastern Logo
12:00 pm - 3:20 pmSFO-ICN
34h 20m1 stop
China Eastern Logo
8:50 pm - 9:00 amICN-SFO
29h 10m2 stops
$703China Eastern
Find Deal
Mon, Nov 17 - Wed, Dec 17
Japan Airlines Logo
12:55 pm - 10:05 pmSFO-GMP
16h 10m1 stop
Japan Airlines Logo
8:00 am - 11:25 amGMP-SFO
19h 25m1 stop
$841Japan Airlines
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Wed, Feb 18 - Thu, Mar 12
Japan Airlines Logo
12:55 pm - 10:05 pmSFO-GMP
16h 10m1 stop
Japan Airlines Logo
8:00 am - 11:25 amGMP-SFO
19h 25m1 stop
$842Japan Airlines
Find Deal
Mon, Feb 23 - Wed, Mar 11

Philippine Airlines flights from San Francisco to Seoul

Our best Philippine Airlines deals on San Francisco to Seoul flight tickets
Philippine Airlines
Nov 9
SFO10:30 pmSan Francisco
27h 55m
1 stop
ICN7:25 pmIncheon Intl
Nov 23
ICN7:30 amIncheon Intl
29h 00m
1 stop
SFO7:30 pmSan Francisco
$655
Find similar
Philippine Airlines
Nov 10
SFO10:30 pmSan Francisco
38h 40m
1 stop
ICN6:10 amIncheon Intl
Nov 21
ICN8:35 pmIncheon Intl
39h 55m
1 stop
SFO7:30 pmSan Francisco
$685
Find similar
Philippine Airlines
Nov 11
SFO10:30 pmSan Francisco
27h 55m
1 stop
ICN7:25 pmIncheon Intl
Nov 18
ICN7:30 amIncheon Intl
29h 00m
1 stop
SFO7:30 pmSan Francisco
$706
Find similar

AIR PREMIA flights from San Francisco to Seoul

Our best AIR PREMIA deals on San Francisco to Seoul flight tickets
AIR PREMIA
Nov 14
SFO2:30 pmSan Francisco
13h 00m
ICN8:30 pmIncheon Intl
Nov 24
ICN6:55 pmIncheon Intl
10h 35m
SFO12:30 pmSan Francisco
$642
Find similar
AIR PREMIA
Nov 12
SFO2:30 pmSan Francisco
13h 00m
ICN8:30 pmIncheon Intl
Nov 19
ICN6:55 pmIncheon Intl
10h 35m
SFO12:30 pmSan Francisco
$646
Find similar
AIR PREMIA
Jan 30
SFO2:30 pmSan Francisco
13h 00m
ICN8:30 pmIncheon Intl
Feb 9
ICN6:55 pmIncheon Intl
10h 35m
SFO12:30 pmSan Francisco
$649
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from San Francisco to Seoul 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, momondo users made 832,500 searches. Data last updated November 6, 2025.
Use the filters below to find and compare flights from San Francisco to Seoul that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Fri 11/14

2:30 pm-8:30 pm

Nonstop13h 00m

Incheon Intl

Mon 11/24

6:55 pm-12:30 pm

Nonstop10h 35m

$642

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Tue 11/11

10:30 pm-7:25 pm

1 stop27h 55m

Incheon Intl

Sun 11/23

6:55 pm-12:30 pm

Nonstop10h 35m

$644

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Thu 11/13

10:30 am-4:15 pm

Nonstop12h 45m

Incheon Intl

Fri 11/21

6:00 pm-11:35 am

Nonstop10h 35m

$658

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Wed 11/19

10:30 am-4:15 pm

Nonstop12h 45m

Incheon Intl

Thu 12/4

12:45 pm-6:30 am

Nonstop10h 45m

$661

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Thu 11/13

8:00 am-6:35 pm

1 stop17h 35m

Incheon Intl

Sat 11/22

8:35 pm-8:14 pm

1 stop16h 39m

$664

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Wed 11/12

11:40 am-6:35 pm

1 stop37h 55m

Incheon Intl

Mon 11/24

8:35 pm-11:49 pm

1 stop20h 14m

$666

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Mon 11/17

12:00 pm-3:20 pm

1 stop34h 20m

Incheon Intl

Wed 12/17

4:20 pm-9:00 am

1 stop33h 40m

$684

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Mon 11/17

12:00 pm-3:20 pm

1 stop34h 20m

Incheon Intl

Wed 12/17

8:50 pm-9:00 am

2 stops29h 10m

$703

San FranciscoSeoul

SFO - GMP

SFOGMP

San Francisco

Wed 2/18

12:55 pm-10:05 pm

1 stop16h 10m

Seoul Gimpo Intl

Thu 3/12

8:00 am-11:25 am

1 stop19h 25m

$841

San FranciscoSeoul

SFO - GMP

SFOGMP

San Francisco

Mon 2/23

12:55 pm-10:05 pm

1 stop16h 10m

Seoul Gimpo Intl

Wed 3/11

8:00 am-11:25 am

1 stop19h 25m

$842

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Seoul from

How to get the cheapest flight ticket from San Francisco to Seoul

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Seoul?

The month of August is another great option to travel to Seoul, with average flight prices from San Francisco averaging around $662.

What is the cheapest day to depart on your flight to Seoul?

According to our data, Monday is the cheapest day to fly to Seoul from San Francisco. The lowest ticket price found for a Monday departure recently was $795. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. The most expensive day to fly to Seoul is Saturday, with ticket prices averaging around $886.

What is the cheapest time of day to depart on your flight to Seoul?

Flying to Seoul from San Francisco in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $753 when looking at flights departing in the afternoon. In the morning is when there is more demand to fly to Seoul, so prices are often more expensive at around $848 per ticket.

What is the cheapest San Francisco to Seoul flight route?

Fly from San Francisco to Incheon Intl for the best San Francisco - Seoul flight prices

How far in advance should I book a flight to Seoul?

You are more likely to see cheaper flights to Seoul from San Francisco when booking week ahead of your departure date. In general, you can expect to find flights to Seoul for around $847 when searching week out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seoul from San Francisco for as low as $693 on momondo.

What cabin class options are available on San Francisco to Seoul flights?

There are 4 cabin classes available to choose from on San Francisco to Seoul flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have San Francisco to Seoul flight prices changed over time?

As of November 2025, prices for San Francisco to Seoul flights are approximately 44% cheaper when compared to flights at the same time last year.

When to book flights from San Francisco to Seoul

Are you open to changing your travel dates? Check out the ideal times to fly from San Francisco to Seoul according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap San Francisco to Seoul (SFO to SEL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Francisco to Seoul

Best Price Found

$367

Fastest flight time

12h 45m

Direct flights

Every day

Airports in Seoul

1 airport
The best one-way flight to Seoul from San Francisco in the past 72 hours is $367. The best round-trip flight deal from San Francisco to Seoul found on momondo in the last 72 hours is $661.
The fastest flight from San Francisco to Seoul takes 12h 45m
Direct flights go from San Francisco to Seoul every day.
There is 1 airport near Seoul: Incheon Intl (ICN)
Search flight deals

  • How far is San Francisco to Seoul by plane?

    Seoul is 5606.2 mi away from San Francisco. A reasonable flight in good conditions will take 12h 45m.

  • When did momondo last update prices for flights from San Francisco Airport to Seoul?

    Prices for flights from San Francisco Airport to Seoul were last updated today.

  • How many operators does momondo search for flights from San Francisco Airport to Seoul?

  • How old do you have to be to fly from San Francisco Airport to Seoul?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from San Francisco Airport to Seoul.

  • What documentation or ID do you need to fly to Seoul?

    The necessary travel and health documents for your Seoul trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from San Francisco to Seoul?

  • What is the most popular airline from San Francisco to Seoul?

Best airlines flying from San Francisco to Seoul

Compare and see reviews for airlines that fly from San Francisco to Seoul with momondo
Airline
Rating
Free Cancellation
Price
AIR PREMIAPriceFrom $610Free CancellationRating
8.3
66 reviews
Search AIR PREMIA flights
China EasternPriceFrom $622Free CancellationRating
7.2
174 reviews
Search China Eastern flights
Asiana AirlinesPriceFrom $648Free CancellationRating
8.2
485 reviews
Search Asiana Airlines flights
Singapore AirlinesPriceFrom $651Free CancellationRating
8.1
1,393 reviews
Search Singapore Airlines flights
United AirlinesPriceFrom $660Free CancellationRating
7.4
9,007 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $672Free CancellationRating
8.0
11,246 reviews
Search Alaska Airlines flights
Korean AirPriceFrom $775Free CancellationRating
8.4
1,160 reviews
Search Korean Air flights
Air CanadaPriceFrom $799Free CancellationRating
7.1
10,416 reviews
Search Air Canada flights
Cathay PacificPriceFrom $805Free CancellationRating
7.6
1,055 reviews
Search Cathay Pacific flights
Vietnam AirlinesPriceFrom $833Free CancellationRating
7.6
212 reviews
Search Vietnam Airlines flights

  • Korean Air Flights From San Francisco to Seoul

    Korean Air is one of the most popular airlines flying from San Francisco to Seoul, operating 7 flights/week on average for this route. A good Korean Air flight deal for San Francisco to Seoul starts from $775 round-trip, up to an average price of $919. Our users have rated Korean Air at 8.4/10.

  • AIR PREMIA Flights From San Francisco to Seoul

    Another popular option for San Francisco to Seoul flights is AIR PREMIA (8.3/10, 66 ratings). AIR PREMIA flies from San Francisco to Seoul around 4 times per week, with deals starting from $610 round-trip and rising to an average price of around $807.

Why use momondo?

Why should I use momondo to find a flight deal from San Francisco to Seoul?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from San Francisco to Seoul. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from San Francisco to Seoul with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Seoul from San Francisco with this policy.

How can momondo help me find flights from San Francisco to Seoul?

Once all potential San Francisco to Seoul flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from San Francisco to Seoul right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of San Francisco to Seoul flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Find better results for your trip to South Korea

Fly into one of these airports located in Seoul

Airports listed have a maximum distance of 30.3 mi from Seoul
Seoul Gimpo Intl Airport
Incheon Intl Airport