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Cheap flights from San Francisco to Seoul from $347

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 3/3. 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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0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
7:40 pm - 6:35 pm
SFO
-
ICN
30h 55m1 stop
Multiple Airlines Logo
6:20 pm - 1:00 pm
ICN
-
SFO
10h 40mnonstop
$643Multiple Airlines
Tue, Apr 21 - Fri, May 8
AIR PREMIA Logo
2:30 pm - 8:30 pm
SFO
-
ICN
13h 00mnonstop
AIR PREMIA Logo
6:55 pm - 12:30 pm
ICN
-
SFO
10h 35mnonstop
$646AIR PREMIA
Mon, Feb 16 - Mon, Mar 2
Multiple Airlines Logo
9:10 am - 6:35 pm
SFO
-
ICN
17h 25m1 stop
Multiple Airlines Logo
6:20 pm - 1:00 pm
ICN
-
SFO
10h 40mnonstop
$648Multiple Airlines
Wed, Apr 22 - Mon, May 4
Multiple Airlines Logo
10:30 pm - 7:25 pm
SFO
-
ICN
27h 55m1 stop
Multiple Airlines Logo
6:55 pm - 1:30 pm
ICN
-
SFO
10h 35mnonstop
$649Multiple Airlines
Wed, Feb 25 - Wed, Mar 11
China Southern Logo
12:35 am - 9:50 pm
SFO
-
ICN
29h 15m1 stop
China Southern Logo
4:45 pm - 8:30 pm
ICN
-
SFO
43h 45m2 stops
$652China Southern
Sat, Apr 4 - Sun, Apr 12
China Eastern Logo
12:00 pm - 5:25 pm
SFO
-
ICN
36h 25m1 stop
China Eastern Logo
8:55 am - 9:00 am
ICN
-
SFO
17h 05m1 stop
$653China Eastern
Mon, Jan 19 - Mon, Jan 26
China Eastern Logo
12:00 pm - 10:55 am
SFO
-
ICN
29h 55m2 stops
China Eastern Logo
8:55 am - 9:00 am
ICN
-
SFO
17h 05m1 stop
$654China Eastern
Mon, Jan 19 - Mon, Jan 26
Air China Logo
12:00 pm - 1:05 pm
SFO
-
GMP
32h 05m1 stop
Air China Logo
2:25 pm - 9:30 am
GMP
-
SFO
36h 05m1 stop
$711Air China
Wed, Jan 14 - Tue, Jan 20
EVA Air Logo
12:00 pm - 12:50 pm
SFO
-
GMP
31h 50m1 stop
EVA Air Logo
7:00 pm - 6:40 am
GMP
-
SFO
27h 40m1 stop
$1,009EVA Air
Thu, Feb 26 - Tue, Mar 10
EVA Air Logo
12:00 pm - 12:50 pm
SFO
-
GMP
31h 50m1 stop
EVA Air Logo
7:00 pm - 6:30 am
GMP
-
SFO
28h 30m1 stop
$1,040EVA Air
Wed, Jan 21 - Tue, Jan 27

China Southern flights from San Francisco to Seoul

Our best China Southern deals on San Francisco to Seoul flight tickets
China Southern
Apr 4
SFO12:35 amSan Francisco
29h 15m
1 stop
ICN9:50 pmIncheon Intl
Apr 12
ICN4:45 pmIncheon Intl
43h 45m
2 stops
SFO8:30 pmSan Francisco
$652
Find similar
China Southern
Jan 17
SFO11:35 pmSan Francisco
21h 15m
1 stop
ICN1:50 pmIncheon Intl
Jan 24
ICN4:15 pmIncheon Intl
20h 25m
1 stop
SFO7:40 pmSan Francisco
$663
Find similar
China Southern
Mar 19
SFO12:35 amSan Francisco
29h 15m
2 stops
ICN9:50 pmIncheon Intl
Mar 29
ICN4:45 pmIncheon Intl
43h 45m
2 stops
SFO8:30 pmSan Francisco
$671
Find similar

AIR PREMIA flights from San Francisco to Seoul

Our best AIR PREMIA deals on San Francisco to Seoul flight tickets
AIR PREMIA
Feb 16
SFO2:30 pmSan Francisco
13h 00m
ICN8:30 pmIncheon Intl
Mar 2
ICN6:55 pmIncheon Intl
10h 35m
SFO12:30 pmSan Francisco
$646
Find similar
AIR PREMIA
Jan 17
SFO2:30 pmSan Francisco
13h 00m
ICN8:30 pmIncheon Intl
Jan 24
ICN6:55 pmIncheon Intl
10h 35m
SFO12:30 pmSan Francisco
$651
Find similar
AIR PREMIA
Jan 21
SFO2:30 pmSan Francisco
13h 00m
ICN8:30 pmIncheon Intl
Jan 23
ICN6:55 pmIncheon Intl
10h 35m
SFO12:30 pmSan Francisco
$661
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 December 4, 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

Tue 4/21

7:40 pm-6:35 pm

1 stop30h 55m

Incheon Intl

Fri 5/8

6:20 pm-1:00 pm

Nonstop10h 40m

$643

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Mon 2/16

2:30 pm-8:30 pm

Nonstop13h 00m

Incheon Intl

Mon 3/2

6:55 pm-12:30 pm

Nonstop10h 35m

$646

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Wed 4/22

9:10 am-6:35 pm

1 stop17h 25m

Incheon Intl

Mon 5/4

6:20 pm-1:00 pm

Nonstop10h 40m

$648

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Wed 2/25

10:30 pm-7:25 pm

1 stop27h 55m

Incheon Intl

Wed 3/11

6:55 pm-1:30 pm

Nonstop10h 35m

$649

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Sat 4/4

12:35 am-9:50 pm

1 stop29h 15m

Incheon Intl

Sun 4/12

4:45 pm-8:30 pm

2 stops43h 45m

$652

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Mon 1/19

12:00 pm-5:25 pm

1 stop36h 25m

Incheon Intl

Mon 1/26

8:55 am-9:00 am

1 stop17h 05m

$653

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Mon 1/19

12:00 pm-10:55 am

2 stops29h 55m

Incheon Intl

Mon 1/26

8:55 am-9:00 am

1 stop17h 05m

$654

San FranciscoSeoul

SFO - GMP

SFOGMP

San Francisco

Wed 1/14

12:00 pm-1:05 pm

1 stop32h 05m

Seoul Gimpo Intl

Tue 1/20

2:25 pm-9:30 am

1 stop36h 05m

$711

San FranciscoSeoul

SFO - GMP

SFOGMP

San Francisco

Thu 2/26

12:00 pm-12:50 pm

1 stop31h 50m

Seoul Gimpo Intl

Tue 3/10

7:00 pm-6:40 am

1 stop27h 40m

$1,009

San FranciscoSeoul

SFO - GMP

SFOGMP

San Francisco

Wed 1/21

12:00 pm-12:50 pm

1 stop31h 50m

Seoul Gimpo Intl

Tue 1/27

7:00 pm-6:30 am

1 stop28h 30m

$1,040

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 $792. 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 $887.

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 $755 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 $852 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 $841 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 $710 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 December 2025, prices for San Francisco to Seoul flights are approximately 52% 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

$381

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 $381. The best round-trip flight deal from San Francisco to Seoul found on momondo in the last 72 hours is $662.
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 13h 00m.

  • 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 $608Free CancellationRating
8.3
72 reviews
Search AIR PREMIA flights
China EasternPriceFrom $622Free CancellationRating
7.2
178 reviews
Search China Eastern flights
Japan AirlinesPriceFrom $630Free CancellationRating
8.3
1,638 reviews
Search Japan Airlines flights
Asiana AirlinesPriceFrom $648Free CancellationRating
8.2
490 reviews
Search Asiana Airlines flights
Singapore AirlinesPriceFrom $651Free CancellationRating
8.1
1,411 reviews
Search Singapore Airlines flights
United AirlinesPriceFrom $660Free CancellationRating
7.4
9,063 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $674Free CancellationRating
8.0
11,396 reviews
Search Alaska Airlines flights
Korean AirPriceFrom $789Free CancellationRating
8.4
1,177 reviews
Search Korean Air flights
Air CanadaPriceFrom $799Free CancellationRating
7.1
10,500 reviews
Search Air Canada flights
Cathay PacificPriceFrom $805Free CancellationRating
7.6
1,082 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 $789 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, 72 ratings). AIR PREMIA flies from San Francisco to Seoul around 4 times per week, with deals starting from $608 round-trip and rising to an average price of around $814.

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