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Cheap flights from San Francisco to Seoul from $350

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 2/15. 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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Find the cheapest flights from San Francisco to Seoul

Cheap round-trip flights

Enter your travel dates to find the best prices.
China Southern Logo
12:35 am - 1:55 pm
SFO
-
ICN
21h 20m1 stop
China Southern Logo
4:45 pm - 8:30 pm
ICN
-
SFO
43h 45m2 stops
$643China Southern
Sat, Apr 18 - Sun, Apr 26
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
$645AIR PREMIA
Sat, Jan 17 - Fri, Jan 23
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
Wed, Jan 14 - Fri, Jan 23
AIR PREMIA Logo
2:30 pm - 8:30 pm
SFO
-
ICN
13h 00mnonstop
AIR PREMIA Logo
6:55 pm - 1:30 pm
ICN
-
SFO
10h 35mnonstop
$648AIR PREMIA
Sun, Jan 18 - Sun, Mar 15
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
$650AIR PREMIA
Wed, Dec 31 - Sun, Jan 18
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
$651AIR PREMIA
Sat, Jan 17 - Fri, Jan 23
China Southern Logo
12:35 am - 9:50 pm
SFO
-
ICN
29h 15m2 stops
China Southern Logo
4:45 pm - 8:30 pm
ICN
-
SFO
43h 45m2 stops
$652China Southern
Thu, Mar 19 - Wed, Apr 1
China Eastern Logo
1:00 pm - 11:55 am
SFO
-
ICN
30h 55m1 stop
China Eastern Logo
8:55 am - 10:00 am
ICN
-
SFO
17h 05m1 stop
$653China Eastern
Thu, Mar 12 - Mon, Mar 23
China Southern Logo
11:35 pm - 1:50 pm
SFO
-
ICN
45h 15m2 stops
China Southern Logo
10:55 am - 7:40 pm
ICN
-
SFO
25h 45m2 stops
$654China Southern
Mon, Jan 12 - Mon, Jan 19
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
$655Multiple Airlines
Mon, Feb 23 - Wed, Mar 18

China Southern flights from San Francisco to Incheon Intl Airport

Our best China Southern deals on San Francisco to Incheon Intl Airport flight tickets
China Southern
Apr 18
SFO12:35 amSan Francisco
21h 20m
1 stop
ICN1:55 pmIncheon Intl
Apr 26
ICN4:45 pmIncheon Intl
43h 45m
2 stops
SFO8:30 pmSan Francisco
$643
Find similar
China Southern
Apr 21
SFO12:35 amSan Francisco
21h 20m
1 stop
ICN1:55 pmIncheon Intl
Apr 29
ICN4:45 pmIncheon Intl
43h 45m
2 stops
SFO8:30 pmSan Francisco
$644
Find similar
China Southern
Mar 19
SFO12:35 amSan Francisco
29h 15m
2 stops
ICN9:50 pmIncheon Intl
Apr 1
ICN4:45 pmIncheon Intl
43h 45m
2 stops
SFO8:30 pmSan Francisco
$652
Find similar

AIR PREMIA flights from San Francisco to Incheon Intl Airport

Our best AIR PREMIA deals on San Francisco to Incheon Intl Airport flight tickets
AIR PREMIA
Jan 17
SFO2:30 pmSan Francisco
13h 00m
ICN8:30 pmIncheon Intl
Jan 28
ICN6:55 pmIncheon Intl
10h 35m
SFO12:30 pmSan Francisco
$645
Find similar
AIR PREMIA
Jan 16
SFO2:30 pmSan Francisco
13h 00m
ICN8:30 pmIncheon Intl
Jan 25
ICN6:55 pmIncheon Intl
10h 35m
SFO12:30 pmSan Francisco
$646
Find similar
AIR PREMIA
Jan 18
SFO2:30 pmSan Francisco
13h 00m
ICN8:30 pmIncheon Intl
Mar 15
ICN6:55 pmIncheon Intl
10h 35m
SFO1:30 pmSan Francisco
$648
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from San Francisco to Incheon Intl Airport 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 18, 2025.
Use the filters below to find and compare flights from San Francisco to Incheon Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Sat 4/18

12:35 am-1:55 pm

1 stop21h 20m

Incheon Intl

Sun 4/26

4:45 pm-8:30 pm

2 stops43h 45m

$643

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Sat 1/17

2:30 pm-8:30 pm

Nonstop13h 00m

Incheon Intl

Fri 1/23

6:55 pm-12:30 pm

Nonstop10h 35m

$645

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Wed 1/14

2:30 pm-8:30 pm

Nonstop13h 00m

Incheon Intl

Fri 1/23

6:55 pm-12:30 pm

Nonstop10h 35m

$646

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Sun 1/18

2:30 pm-8:30 pm

Nonstop13h 00m

Incheon Intl

Sun 3/15

6:55 pm-1:30 pm

Nonstop10h 35m

$648

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Wed 12/31

2:30 pm-8:30 pm

Nonstop13h 00m

Incheon Intl

Sun 1/18

6:55 pm-12:30 pm

Nonstop10h 35m

$650

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Sat 1/17

2:30 pm-8:30 pm

Nonstop13h 00m

Incheon Intl

Fri 1/23

6:55 pm-12:30 pm

Nonstop10h 35m

$651

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Thu 3/19

12:35 am-9:50 pm

2 stops29h 15m

Incheon Intl

Wed 4/1

4:45 pm-8:30 pm

2 stops43h 45m

$652

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Thu 3/12

1:00 pm-11:55 am

1 stop30h 55m

Incheon Intl

Mon 3/23

8:55 am-10:00 am

1 stop17h 05m

$653

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Mon 1/12

11:35 pm-1:50 pm

2 stops45h 15m

Incheon Intl

Mon 1/19

10:55 am-7:40 pm

2 stops25h 45m

$654

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Mon 2/23

10:30 pm-7:25 pm

1 stop27h 55m

Incheon Intl

Wed 3/18

6:55 pm-1:30 pm

Nonstop10h 35m

$655

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 Incheon Intl Airport

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 Incheon Intl Airport?

The cheapest month to fly to Incheon Intl Airport from San Francisco is in February. Flight prices, which tend to average around $669, are often lower during this time because this is during the off-season. If you are unable to visit Incheon Intl Airport during the month of February, then departing from San Francisco during the month January is also very affordable. Most momondo users find prices during this month for around $687.

What is the cheapest day to depart on your flight to Incheon Intl Airport?

The cheapest day to depart from San Francisco to Incheon Intl Airport is on a Monday when prices can be found for as low as $786. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $886. These prices are subject to change though, so be sure to set up a Price Alert for flights to Incheon Intl Airport.

What is the cheapest time of day to depart on your flight to Incheon Intl Airport?

In the afternoon is the cheapest time of day to fly from San Francisco to Incheon Intl Airport when you can find flight prices for as low as $756. Flying to Incheon Intl Airport in the afternoon is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $853 on average. Flights to Incheon Intl Airport from San Francisco in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest San Francisco to Incheon Intl flight route?

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

How far in advance should I book a flight to Incheon Intl Airport?

You are more likely to see cheaper flights to Incheon Intl Airport from San Francisco when booking week ahead of your departure date. In general, you can expect to find flights to Incheon Intl Airport for around $845 when searching week out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Incheon Intl Airport from San Francisco for as low as $713 on momondo.

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

There are 4 cabin classes available to choose from on San Francisco to Incheon Intl 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 Incheon Intl Airport flight prices changed over time?

As of December 2025, prices for San Francisco to Incheon Intl Airport flights are approximately 57% cheaper when compared to flights at the same time last year.

When to book flights from San Francisco to Incheon Intl Airport

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

Cheap San Francisco to Incheon Intl Airport (SFO to ICN) flight deals and tips

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

Best Price Found

$387

Fastest flight time

12h 40m

Direct flights

Every day
The best one-way flight to Incheon Intl Airport from San Francisco in the past 72 hours is $387. The best round-trip flight deal from San Francisco to Incheon Intl Airport found on momondo in the last 72 hours is $661.
The fastest flight from San Francisco to Incheon Intl Airport takes 12h 40m
Direct flights go from San Francisco to Incheon Intl Airport every day.
Search flight deals

  • How far is San Francisco to Incheon Intl by plane?

    Incheon Intl is 5632.9 mi away from San Francisco. A reasonable flight in good conditions will take 12h 40m.

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

    Prices for flights from San Francisco Airport to Incheon Intl Airport are refreshed on a daily basis.

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Francisco Airport to Incheon Intl Airport.

  • What documentation or ID do you need to fly to Incheon Intl Airport?

    The travel and health documents required for your trip to Incheon Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Incheon Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from San Francisco to Incheon Intl Airport?

  • What is the most popular airline from San Francisco to Incheon Intl Airport?

Best airlines flying from San Francisco to Incheon Intl Airport

Compare and see reviews for airlines that fly from San Francisco to Incheon Intl Airport 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
1,662 reviews
Search Japan Airlines flights
Asiana AirlinesPriceFrom $648Free CancellationRating
8.2
493 reviews
Search Asiana Airlines flights
Singapore AirlinesPriceFrom $651Free CancellationRating
8.1
1,413 reviews
Search Singapore Airlines flights
United AirlinesPriceFrom $660Free CancellationRating
7.4
9,091 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $674Free CancellationRating
8.0
11,477 reviews
Search Alaska Airlines flights
Korean AirPriceFrom $790Free CancellationRating
8.4
1,186 reviews
Search Korean Air flights
Air CanadaPriceFrom $796Free CancellationRating
7.1
10,534 reviews
Search Air Canada flights
Cathay PacificPriceFrom $805Free CancellationRating
7.6
1,095 reviews
Search Cathay Pacific flights

  • Korean Air Flights From San Francisco to Incheon Intl Airport

    The lowest priced Korean Air flight from San Francisco to Incheon Intl Airport from the last 72 hours was $790. Generally, Korean Air has 7 flights on this route every week with an average price of $944. Korean Air is rated 8.4/10 by our users.

  • AIR PREMIA Flights From San Francisco to Incheon Intl Airport

    The best AIR PREMIA deal for San Francisco to Incheon Intl Airport flight tickets found on momondo in the last 72 hours was $608, round-trip. It should be noted that an average AIR PREMIA flight deal for this route in this time was higher, at $803 round-trip. AIR PREMIA operates 5 flights out of San Francisco into Incheon Intl Airport in an average week, so prices vary by time and availability. 72 AIR PREMIA reviews by users on momondo have scored the airline at 8.3/10.

Traveling to a place near Seoul?

Book flights to Seoul if you plan to visit one of these locations
Suwon
Seongnam
Daejeon
Anyang

Why use momondo?

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

It is quick and easy to find San Francisco to Seoul flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Seoul that suits you.

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

momondo does allow users to show only those flights to Seoul from San Francisco which offer a flexible booking policy as well as other useful filters and features.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Seoul from San Francisco.

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

Yes momondo offers price alerts on flights to Seoul from San Francisco. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Incheon Intl Airport trip

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