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Cheap flights from San Francisco to Seoul from $344

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 1/4. 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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Cheap round-trip flights

Enter your travel dates to find the best prices.
AIR PREMIA Logo
2:30 pm - 8:30 pmSFO-ICN
13h 00mnonstop
AIR PREMIA Logo
6:55 pm - 12:30 pmICN-SFO
10h 35mnonstop
$642AIR PREMIA
Find Deal
Fri, Nov 14 - Mon, Nov 24
Multiple Airlines Logo
10:30 pm - 7:25 pmSFO-ICN
27h 55m1 stop
Multiple Airlines Logo
6:55 pm - 12:30 pmICN-SFO
10h 35mnonstop
$644Multiple Airlines
Find Deal
Tue, Nov 11 - Sun, Nov 23
Philippine Airlines Logo
10:30 pm - 7:25 pmSFO-ICN
27h 55m1 stop
Philippine Airlines Logo
7:30 am - 7:30 pmICN-SFO
29h 00m1 stop
$655Philippine Airlines
Find Deal
Sun, Nov 9 - Sun, Nov 23
United Airlines Logo
10:30 am - 4:15 pmSFO-ICN
12h 45mnonstop
United Airlines Logo
6:00 pm - 11:35 amICN-SFO
10h 35mnonstop
$658United Airlines
Find Deal
Thu, Nov 13 - Fri, Nov 21
United Airlines Logo
10:30 am - 4:15 pmSFO-ICN
12h 45mnonstop
United Airlines Logo
12:45 pm - 6:30 amICN-SFO
10h 45mnonstop
$661United Airlines
Find Deal
Wed, Nov 19 - Thu, Dec 4
Alaska Airlines Logo
8:00 am - 6:35 pmSFO-ICN
17h 35m1 stop
Alaska Airlines Logo
8:35 pm - 8:14 pmICN-SFO
16h 39m1 stop
$664Alaska Airlines
Find Deal
Thu, Nov 13 - Sat, Nov 22
Alaska Airlines Logo
11:40 am - 6:35 pmSFO-ICN
37h 55m1 stop
Alaska Airlines Logo
8:35 pm - 11:49 pmICN-SFO
20h 14m1 stop
$666Alaska Airlines
Find Deal
Wed, Nov 12 - Mon, Nov 24
China Eastern Logo
12:00 pm - 3:20 pmSFO-ICN
34h 20m1 stop
China Eastern Logo
4:20 pm - 9:00 amICN-SFO
33h 40m1 stop
$684China Eastern
Find Deal
Mon, Nov 17 - Wed, Dec 17
Philippine Airlines Logo
10:30 pm - 6:10 amSFO-ICN
38h 40m1 stop
Philippine Airlines Logo
8:35 pm - 7:30 pmICN-SFO
39h 55m1 stop
$685Philippine Airlines
Find Deal
Mon, Nov 10 - Fri, Nov 21
China Eastern Logo
12:00 pm - 3:20 pmSFO-ICN
34h 20m1 stop
China Eastern Logo
8:50 pm - 9:00 amICN-SFO
29h 10m2 stops
$703China Eastern
Find Deal
Mon, Nov 17 - Wed, Dec 17

Philippine Airlines flights from San Francisco to Incheon Intl Airport

Our best Philippine Airlines deals on San Francisco to Incheon Intl Airport flight tickets
Philippine Airlines
Nov 9
SFO10:30 pmSan Francisco
27h 55m
1 stop
ICN7:25 pmIncheon Intl
Nov 23
ICN7:30 amIncheon Intl
29h 00m
1 stop
SFO7:30 pmSan Francisco
$655
Find similar
Philippine Airlines
Nov 10
SFO10:30 pmSan Francisco
38h 40m
1 stop
ICN6:10 amIncheon Intl
Nov 21
ICN8:35 pmIncheon Intl
39h 55m
1 stop
SFO7:30 pmSan Francisco
$685
Find similar
Philippine Airlines
Nov 11
SFO10:30 pmSan Francisco
27h 55m
1 stop
ICN7:25 pmIncheon Intl
Nov 18
ICN7:30 amIncheon Intl
29h 00m
1 stop
SFO7:30 pmSan Francisco
$706
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
Nov 14
SFO2:30 pmSan Francisco
13h 00m
ICN8:30 pmIncheon Intl
Nov 24
ICN6:55 pmIncheon Intl
10h 35m
SFO12:30 pmSan Francisco
$642
Find similar
AIR PREMIA
Nov 12
SFO2:30 pmSan Francisco
13h 00m
ICN8:30 pmIncheon Intl
Nov 19
ICN6:55 pmIncheon Intl
10h 35m
SFO12:30 pmSan Francisco
$646
Find similar
AIR PREMIA
Jan 30
SFO2:30 pmSan Francisco
13h 00m
ICN8:30 pmIncheon Intl
Feb 9
ICN6:55 pmIncheon Intl
10h 35m
SFO12:30 pmSan Francisco
$649
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 November 6, 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

Fri 11/14

2:30 pm-8:30 pm

Nonstop13h 00m

Incheon Intl

Mon 11/24

6:55 pm-12:30 pm

Nonstop10h 35m

$642

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Tue 11/11

10:30 pm-7:25 pm

1 stop27h 55m

Incheon Intl

Sun 11/23

6:55 pm-12:30 pm

Nonstop10h 35m

$644

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Sun 11/9

10:30 pm-7:25 pm

1 stop27h 55m

Incheon Intl

Sun 11/23

7:30 am-7:30 pm

1 stop29h 00m

$655

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Thu 11/13

10:30 am-4:15 pm

Nonstop12h 45m

Incheon Intl

Fri 11/21

6:00 pm-11:35 am

Nonstop10h 35m

$658

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Wed 11/19

10:30 am-4:15 pm

Nonstop12h 45m

Incheon Intl

Thu 12/4

12:45 pm-6:30 am

Nonstop10h 45m

$661

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Thu 11/13

8:00 am-6:35 pm

1 stop17h 35m

Incheon Intl

Sat 11/22

8:35 pm-8:14 pm

1 stop16h 39m

$664

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Wed 11/12

11:40 am-6:35 pm

1 stop37h 55m

Incheon Intl

Mon 11/24

8:35 pm-11:49 pm

1 stop20h 14m

$666

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Mon 11/17

12:00 pm-3:20 pm

1 stop34h 20m

Incheon Intl

Wed 12/17

4:20 pm-9:00 am

1 stop33h 40m

$684

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Mon 11/10

10:30 pm-6:10 am

1 stop38h 40m

Incheon Intl

Fri 11/21

8:35 pm-7:30 pm

1 stop39h 55m

$685

San FranciscoIncheon

SFO - ICN

SFOICN

San Francisco

Mon 11/17

12:00 pm-3:20 pm

1 stop34h 20m

Incheon Intl

Wed 12/17

8:50 pm-9:00 am

2 stops29h 10m

$703

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 $667, 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 $689.

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 $795. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $885. 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 $753. 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 $848 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 $847 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 $693 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 November 2025, prices for San Francisco to Incheon Intl Airport flights are approximately 37% 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

$367

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 $367. 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 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 12h 45m.

  • 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 $610Free CancellationRating
8.3
66 reviews
Search AIR PREMIA flights
China EasternPriceFrom $622Free CancellationRating
7.2
174 reviews
Search China Eastern flights
Asiana AirlinesPriceFrom $648Free CancellationRating
8.2
485 reviews
Search Asiana Airlines flights
Singapore AirlinesPriceFrom $651Free CancellationRating
8.1
1,393 reviews
Search Singapore Airlines flights
United AirlinesPriceFrom $660Free CancellationRating
7.4
9,007 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $672Free CancellationRating
8.0
11,246 reviews
Search Alaska Airlines flights
Korean AirPriceFrom $775Free CancellationRating
8.4
1,160 reviews
Search Korean Air flights
Air CanadaPriceFrom $799Free CancellationRating
7.1
10,416 reviews
Search Air Canada flights
Cathay PacificPriceFrom $805Free CancellationRating
7.6
1,055 reviews
Search Cathay Pacific flights
Vietnam AirlinesPriceFrom $833Free CancellationRating
7.6
212 reviews
Search Vietnam Airlines 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 $775. Generally, Korean Air has 7 flights on this route every week with an average price of $919. 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 $610, round-trip. It should be noted that an average AIR PREMIA flight deal for this route in this time was higher, at $807 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. 66 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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