Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from San Francisco to Seoul from $346

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 9/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from San Francisco to Seoul

Cheap round-trip flights

China Eastern Logo
1:00 pm - 1:15 pmSFO-ICN
32h 15m2 stops
China Eastern Logo
8:50 pm - 9:00 amICN-SFO
29h 10m2 stops
$656China Eastern
Find Deal
Mon, Oct 27 - Fri, Nov 7
AIR PREMIA Logo
3:30 pm - 8:30 pmSFO-ICN
13h 00mnonstop
AIR PREMIA Logo
6:55 pm - 1:00 pmICN-SFO
10h 05mnonstop
$657AIR PREMIA
Find Deal
Sun, Oct 19 - Mon, Oct 27
Air China Logo
2:50 pm - 1:05 pmSFO-GMP
30h 15m1 stop
Air China Logo
2:25 pm - 9:15 amGMP-SFO
35h 50m1 stop
$658Air China
Find Deal
Tue, Oct 28 - Tue, Nov 4
United Airlines Logo
11:45 pm - 4:20 amSFO-ICN
12h 35mnonstop
United Airlines Logo
4:50 pm - 11:35 amICN-SFO
10h 45mnonstop
$662United Airlines
Find Deal
Thu, Sep 25 - Thu, Oct 9
United Airlines Logo
10:30 am - 3:15 pmSFO-ICN
12h 45mnonstop
United Airlines Logo
6:00 pm - 11:35 amICN-SFO
10h 35mnonstop
$663United Airlines
Find Deal
Sun, Oct 26 - Tue, Nov 11
Alaska Airlines Logo
9:47 pm - 6:35 pmSFO-ICN
28h 48m1 stop
Alaska Airlines Logo
8:35 pm - 4:43 pmICN-SFO
36h 08m1 stop
$673Alaska Airlines
Find Deal
Sat, Oct 25 - Sat, Nov 1
Alaska Airlines Logo
6:20 pm - 6:35 pmSFO-ICN
32h 15m1 stop
Alaska Airlines Logo
8:35 pm - 8:13 pmICN-SFO
15h 38m1 stop
$674Alaska Airlines
Find Deal
Tue, Oct 14 - Thu, Oct 30
Cathay Pacific Logo
10:55 pm - 6:35 pmSFO-ICN
26h 40m1 stop
Cathay Pacific Logo
1:50 pm - 4:20 pmICN-SFO
19h 30m1 stop
$698Cathay Pacific
Find Deal
Mon, Nov 3 - 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
$856Japan Airlines
Find Deal
Mon, Dec 8 - Sun, Dec 21
Japan Airlines Logo
12:50 pm - 10:05 pmSFO-GMP
16h 15m1 stop
Japan Airlines Logo
7:40 pm - 10:15 amGMP-SFO
31h 35m1 stop
$858Japan Airlines
Find Deal
Thu, Dec 4 - Sat, Dec 13

Alaska Airlines flights from San Francisco to Seoul

Our best Alaska Airlines deals on San Francisco to Seoul flight tickets
Alaska Airlines
Oct 25
SFO9:47 pmSan Francisco
28h 48m
1 stop
ICN6:35 pmIncheon Intl
Nov 1
ICN8:35 pmIncheon Intl
36h 08m
1 stop
SFO4:43 pmSan Francisco
$673
Find similar
Alaska Airlines
Oct 14
SFO6:20 pmSan Francisco
32h 15m
1 stop
ICN6:35 pmIncheon Intl
Oct 30
ICN8:35 pmIncheon Intl
15h 38m
1 stop
SFO8:13 pmSan Francisco
$674
Find similar
Alaska Airlines
Oct 14
SFO5:16 pmSan Francisco
33h 19m
1 stop
ICN6:35 pmIncheon Intl
Nov 2
ICN8:35 pmIncheon Intl
18h 06m
1 stop
SFO9:41 pmSan Francisco
$682
Find similar

China Eastern flights from San Francisco to Seoul

Our best China Eastern deals on San Francisco to Seoul flight tickets
China Eastern
Oct 27
SFO1:00 pmSan Francisco
32h 15m
2 stops
ICN1:15 pmIncheon Intl
Nov 7
ICN8:50 pmIncheon Intl
29h 10m
2 stops
SFO9:00 amSan Francisco
$656
Find similar
China Eastern
Dec 1
SFO12:00 pmSan Francisco
30h 55m
1 stop
ICN11:55 amIncheon Intl
Dec 14
ICN4:20 pmIncheon Intl
33h 40m
1 stop
SFO9:00 amSan Francisco
$658
Find similar
China Eastern
Oct 20
SFO12:00 pmSan Francisco
35h 25m
1 stop
ICN3:25 pmIncheon Intl
Nov 2
ICN8:50 pmIncheon Intl
29h 10m
2 stops
SFO9:00 amSan Francisco
$664
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 August 25, 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

Mon 10/27

1:00 pm-1:15 pm

2 stops32h 15m

Incheon Intl

Fri 11/7

8:50 pm-9:00 am

2 stops29h 10m

$656

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Sun 10/19

3:30 pm-8:30 pm

Nonstop13h 00m

Incheon Intl

Mon 10/27

6:55 pm-1:00 pm

Nonstop10h 05m

$657

San FranciscoSeoul

SFO - GMP

SFOGMP

San Francisco

Tue 10/28

2:50 pm-1:05 pm

1 stop30h 15m

Seoul Gimpo Intl

Tue 11/4

2:25 pm-9:15 am

1 stop35h 50m

$658

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Thu 9/25

11:45 pm-4:20 am

Nonstop12h 35m

Incheon Intl

Thu 10/9

4:50 pm-11:35 am

Nonstop10h 45m

$662

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Sun 10/26

10:30 am-3:15 pm

Nonstop12h 45m

Incheon Intl

Tue 11/11

6:00 pm-11:35 am

Nonstop10h 35m

$663

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Sat 10/25

9:47 pm-6:35 pm

1 stop28h 48m

Incheon Intl

Sat 11/1

8:35 pm-4:43 pm

1 stop36h 08m

$673

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Tue 10/14

6:20 pm-6:35 pm

1 stop32h 15m

Incheon Intl

Thu 10/30

8:35 pm-8:13 pm

1 stop15h 38m

$674

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Mon 11/3

10:55 pm-6:35 pm

1 stop26h 40m

Incheon Intl

Wed 11/12

1:50 pm-4:20 pm

1 stop19h 30m

$698

San FranciscoSeoul

SFO - GMP

SFOGMP

San Francisco

Mon 12/8

12:50 pm-10:05 pm

1 stop16h 15m

Seoul Gimpo Intl

Sun 12/21

12:05 pm-10:15 am

1 stop15h 10m

$856

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

7:40 pm-10:15 am

1 stop31h 35m

$858

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 March is another great option to travel to Seoul, with average flight prices from San Francisco averaging around $697.

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 $816. 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 $910.

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 $756 when looking at flights departing in the afternoon. In the evening is when there is more demand to fly to Seoul, so prices are often more expensive at around $868 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 $871 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 $702 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 6% 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 August 2025, prices for San Francisco to Seoul flights are approximately 46% 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

$357

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 $357. 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 35m.

  • 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
2,679 reviews
Search Hawaiian Airlines flights
AIR PREMIAPriceFrom $616Free CancellationRating
8.2
60 reviews
Search AIR PREMIA flights
Asiana AirlinesPriceFrom $651Free CancellationRating
8.2
476 reviews
Search Asiana Airlines flights
China EasternPriceFrom $651Free CancellationRating
7.2
161 reviews
Search China Eastern flights
Singapore AirlinesPriceFrom $651Free CancellationRating
8.1
1,352 reviews
Search Singapore Airlines flights
United AirlinesPriceFrom $660Free CancellationRating
7.4
8,940 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $675Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights
Korean AirPriceFrom $776Free CancellationRating
8.4
1,133 reviews
Search Korean Air flights
Air CanadaPriceFrom $789Free CancellationRating
7.1
10,000 reviews
Search Air Canada flights
Cathay PacificPriceFrom $809Free CancellationRating
7.6
975 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 $776 round-trip, up to an average price of $965. 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 (8.2/10, 60 ratings). AIR PREMIA flies from San Francisco to Seoul around 4 times per week, with deals starting from $616 round-trip and rising to an average price of around $798.

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.

An easier way to manage your Seoul trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 8/30
Sat 9/6
By creating a price alert you accept our terms of use and privacy policy.

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