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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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Find the cheapest flights from San Francisco to Seoul

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
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 - Sat, Jan 24
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
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
Tue, Mar 3 - Mon, Mar 9
Multiple Airlines Logo
10:30 pm - 6:10 am
SFO
-
ICN
38h 40m1 stop
Multiple Airlines Logo
6:55 pm - 1:30 pm
ICN
-
SFO
10h 35mnonstop
$656Multiple Airlines
Mon, Feb 23 - Mon, Mar 9

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 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 Incheon Intl Airport

Our best AIR PREMIA deals on San Francisco to Incheon Intl Airport 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 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 4, 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

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 1/17

2:30 pm-8:30 pm

Nonstop13h 00m

Incheon Intl

Sat 1/24

6:55 pm-12:30 pm

Nonstop10h 35m

$651

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 FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Tue 3/3

10:30 pm-7:25 pm

1 stop27h 55m

Incheon Intl

Mon 3/9

6:55 pm-1:30 pm

Nonstop10h 35m

$655

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Mon 2/23

10:30 pm-6:10 am

1 stop38h 40m

Incheon Intl

Mon 3/9

6:55 pm-1:30 pm

Nonstop10h 35m

$656

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 typical price of a round-trip flight between San Francisco and Incheon Intl Airport?

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 $662, 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 November is also very affordable. Most momondo users find prices during this month for around $682.

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 $791. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $887. 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 $755. 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 $851 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 $841 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 $710 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 58% 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

$381

Fastest flight time

12h 45m

Direct flights

Every day
The best one-way flight to Incheon Intl Airport from San Francisco in the past 72 hours is $381. The best round-trip flight deal from San Francisco to Incheon Intl Airport found on momondo in the last 72 hours is $662.
The fastest flight from San Francisco to Incheon Intl Airport takes 12h 45m
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 13h 00m.

  • 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
1,638 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
9,066 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $674Free CancellationRating
8.0
11,402 reviews
Search Alaska Airlines flights
Korean AirPriceFrom $789Free CancellationRating
8.4
1,179 reviews
Search Korean Air flights
Air CanadaPriceFrom $799Free CancellationRating
7.1
10,500 reviews
Search Air Canada flights
Cathay PacificPriceFrom $805Free CancellationRating
7.6
1,084 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 $789. Generally, Korean Air has 7 flights on this route every week with an average price of $937. 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 $814 round-trip. AIR PREMIA operates 4 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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