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Cheap flights from San Francisco to Seoul from $334

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 11/9. 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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AIR PREMIA Logo
2:30 pm - 8:30 pmSFO-ICN
13h 00mnonstop
AIR PREMIA Logo
6:55 pm - 12:30 pmICN-SFO
10h 35mnonstop
$641AIR PREMIA
Find Deal
Sun, Dec 7 - Sat, Dec 27
Philippine Airlines Logo
11:30 pm - 7:25 pmSFO-ICN
27h 55m1 stop
Philippine Airlines Logo
7:30 am - 8:30 pmICN-SFO
29h 00m1 stop
$642Philippine Airlines
Find Deal
Mon, Mar 16 - Wed, Mar 25
Alaska Airlines Logo
7:00 am - 6:35 pmSFO-ICN
18h 35m1 stop
Alaska Airlines Logo
8:35 pm - 9:54 pmICN-SFO
18h 19m1 stop
$654Alaska Airlines
Find Deal
Thu, Jan 8 - Fri, Jan 23
China Eastern Logo
12:00 pm - 11:00 amSFO-ICN
30h 00m2 stops
China Eastern Logo
12:55 pm - 9:00 amICN-SFO
37h 05m1 stop
$655China Eastern
Find Deal
Mon, Nov 3 - Fri, Nov 7
United Airlines Logo
11:45 pm - 5:40 amSFO-ICN
12h 55mnonstop
United Airlines Logo
6:00 pm - 11:35 amICN-SFO
10h 35mnonstop
$661United Airlines
Find Deal
Wed, Nov 5 - Tue, Nov 11
United Airlines Logo
11:45 pm - 4:40 amSFO-ICN
12h 55mnonstop
United Airlines Logo
12:45 pm - 6:30 amICN-SFO
10h 45mnonstop
$665United Airlines
Find Deal
Sun, Oct 26 - Tue, Nov 11
Alaska Airlines Logo
7:00 am - 6:35 pmSFO-ICN
18h 35m1 stop
Alaska Airlines Logo
8:35 pm - 11:43 pmICN-SFO
20h 08m1 stop
$669Alaska Airlines
Find Deal
Sun, Feb 1 - Mon, Feb 16
China Eastern Logo
12:00 pm - 11:00 amSFO-GMP
30h 00m1 stop
China Eastern Logo
8:50 pm - 9:00 amGMP-SFO
29h 10m1 stop
$700China Eastern
Find Deal
Thu, Nov 6 - Wed, Nov 12
Japan Airlines Logo
12:50 pm - 10:05 pmSFO-GMP
16h 15m1 stop
Japan Airlines Logo
12:05 pm - 10:15 amGMP-SFO
15h 10m1 stop
$842Japan Airlines
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Thu, Dec 4 - Sat, Dec 13
Japan Airlines Logo
12:50 pm - 10:05 pmSFO-GMP
16h 15m1 stop
Japan Airlines Logo
12:05 pm - 10:15 amGMP-SFO
15h 10m1 stop
$845Japan Airlines
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Wed, Dec 3 - Thu, Dec 18

AIR PREMIA flights from San Francisco to Seoul

Our best AIR PREMIA deals on San Francisco to Seoul flight tickets
AIR PREMIA
Dec 7
SFO2:30 pmSan Francisco
13h 00m
ICN8:30 pmIncheon Intl
Dec 27
ICN6:55 pmIncheon Intl
10h 35m
SFO12:30 pmSan Francisco
$641
Find similar
AIR PREMIA
Nov 5
SFO2:30 pmSan Francisco
13h 00m
ICN8:30 pmIncheon Intl
Nov 26
ICN6:55 pmIncheon Intl
10h 35m
SFO12:30 pmSan Francisco
$650
Find similar
AIR PREMIA
Nov 5
SFO2:30 pmSan Francisco
13h 00m
ICN8:30 pmIncheon Intl
Nov 23
ICN6:55 pmIncheon Intl
10h 35m
SFO12:30 pmSan Francisco
$660
Find similar

Philippine Airlines flights from San Francisco to Seoul

Our best Philippine Airlines deals on San Francisco to Seoul flight tickets
Philippine Airlines
Mar 16
SFO11:30 pmSan Francisco
27h 55m
1 stop
ICN7:25 pmIncheon Intl
Mar 25
ICN7:30 amIncheon Intl
29h 00m
1 stop
SFO8:30 pmSan Francisco
$642
Find similar
Philippine Airlines
Apr 3
SFO11:25 pmSan Francisco
28h 10m
1 stop
ICN7:35 pmIncheon Intl
Apr 20
ICN8:10 amIncheon Intl
28h 05m
1 stop
SFO8:15 pmSan Francisco
$646
Find similar
Philippine Airlines
Oct 27
SFO11:30 pmSan Francisco
27h 55m
1 stop
ICN7:25 pmIncheon Intl
Oct 31
ICN8:35 pmIncheon Intl
39h 55m
1 stop
SFO8:30 pmSan Francisco
$657
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 October 16, 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

Sun 12/7

2:30 pm-8:30 pm

Nonstop13h 00m

Incheon Intl

Sat 12/27

6:55 pm-12:30 pm

Nonstop10h 35m

$641

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Mon 3/16

11:30 pm-7:25 pm

1 stop27h 55m

Incheon Intl

Wed 3/25

7:30 am-8:30 pm

1 stop29h 00m

$642

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Thu 1/8

7:00 am-6:35 pm

1 stop18h 35m

Incheon Intl

Fri 1/23

8:35 pm-9:54 pm

1 stop18h 19m

$654

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Mon 11/3

12:00 pm-11:00 am

2 stops30h 00m

Incheon Intl

Fri 11/7

12:55 pm-9:00 am

1 stop37h 05m

$655

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Wed 11/5

11:45 pm-5:40 am

Nonstop12h 55m

Incheon Intl

Tue 11/11

6:00 pm-11:35 am

Nonstop10h 35m

$661

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Sun 10/26

11:45 pm-4:40 am

Nonstop12h 55m

Incheon Intl

Tue 11/11

12:45 pm-6:30 am

Nonstop10h 45m

$665

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Sun 2/1

7:00 am-6:35 pm

1 stop18h 35m

Incheon Intl

Mon 2/16

8:35 pm-11:43 pm

1 stop20h 08m

$669

San FranciscoSeoul

SFO - GMP

SFOGMP

San Francisco

Thu 11/6

12:00 pm-11:00 am

1 stop30h 00m

Seoul Gimpo Intl

Wed 11/12

8:50 pm-9:00 am

1 stop29h 10m

$700

San FranciscoSeoul

SFO - GMP

SFOGMP

San Francisco

Thu 12/4

12:50 pm-10:05 pm

1 stop16h 15m

Seoul Gimpo Intl

Sat 12/13

12:05 pm-10:15 am

1 stop15h 10m

$842

San FranciscoSeoul

SFO - GMP

SFOGMP

San Francisco

Wed 12/3

12:50 pm-10:05 pm

1 stop16h 15m

Seoul Gimpo Intl

Thu 12/18

12:05 pm-10:15 am

1 stop15h 10m

$845

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 typical price of a round-trip flight between San Francisco and Seoul?

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 $800. 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 $899.

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 $750 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 $853 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 $846 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 $687 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.

Can stopping save me money on San Francisco to Seoul flights?

You could potentially save up to 1% on your flight if you consider stops on a San Francisco to Seoul flight.

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

As of October 2025, prices for San Francisco to Seoul flights are approximately 30% 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

$379

Fastest flight time

12h 25m

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 $379. 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 25m
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
Hawaiian AirlinesPriceFrom $422Free CancellationRating
7.8
2,781 reviews
Search Hawaiian Airlines flights
AIR PREMIAPriceFrom $612Free CancellationRating
8.3
64 reviews
Search AIR PREMIA flights
China EasternPriceFrom $622Free CancellationRating
7.2
169 reviews
Search China Eastern flights
Asiana AirlinesPriceFrom $648Free CancellationRating
8.2
486 reviews
Search Asiana Airlines flights
Singapore AirlinesPriceFrom $651Free CancellationRating
8.1
1,382 reviews
Search Singapore Airlines flights
United AirlinesPriceFrom $660Free CancellationRating
7.4
8,982 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $672Free CancellationRating
8.0
11,103 reviews
Search Alaska Airlines flights
Korean AirPriceFrom $775Free CancellationRating
8.4
1,149 reviews
Search Korean Air flights
Air CanadaPriceFrom $801Free CancellationRating
7.1
10,307 reviews
Search Air Canada flights
Cathay PacificPriceFrom $805Free CancellationRating
7.6
1,028 reviews
Search Cathay Pacific 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 $937. 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, 64 ratings). AIR PREMIA flies from San Francisco to Seoul around 4 times per week, with deals starting from $612 round-trip and rising to an average price of around $787.

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