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Cheap flights from Seoul to San Francisco from $299

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seoul to San Francisco departing on 12/14. 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 Canada Logo
5:55 pm - 8:34 pm
ICN
-
SFO
19h 39m1 stop
Air Canada Logo
7:10 am - 4:05 pm
SFO
-
ICN
16h 55m1 stop
$404Air Canada
Wed, Feb 18 - Sun, Jun 7
Air Canada Logo
5:55 pm - 3:35 pm
ICN
-
SFO
14h 40m1 stop
Air Canada Logo
7:30 pm - 4:05 pm
SFO
-
ICN
28h 35m1 stop
$414Air Canada
Fri, Jan 30 - Mon, Jun 1
Air Canada Logo
6:55 pm - 3:35 pm
ICN
-
SFO
13h 40m1 stop
Air Canada Logo
11:20 am - 5:10 pm
SFO
-
ICN
36h 50m1 stop
$438Air Canada
Sat, Feb 28 - Mon, Mar 2
Air Canada Logo
5:55 pm - 10:34 am
ICN
-
SFO
33h 39m1 stop
Air Canada Logo
7:30 pm - 4:05 pm
SFO
-
ICN
28h 35m1 stop
$445Air Canada
Sun, Feb 1 - Mon, Jun 1
Air Canada Logo
5:55 pm - 3:35 pm
ICN
-
SFO
14h 40m1 stop
Air Canada Logo
7:30 am - 4:00 pm
SFO
-
ICN
15h 30m1 stop
$451Air Canada
Wed, Jan 21 - Sat, Jan 24
American Airlines Logo
7:15 pm - 7:19 pm
ICN
-
SFO
41h 04m2 stops
American Airlines Logo
4:23 pm - 3:30 pm
SFO
-
ICN
31h 07m2 stops
$464American Airlines
Mon, Feb 2 - Sat, May 30
American Airlines Logo
7:15 pm - 9:37 pm
ICN
-
SFO
19h 22m1 stop
American Airlines Logo
7:01 pm - 4:45 pm
SFO
-
ICN
28h 44m2 stops
$465American Airlines
Wed, Feb 4 - Sun, Feb 8
ANA Logo
12:25 pm - 3:20 pm
GMP
-
SFO
19h 55m1 stop
ANA Logo
12:20 am - 11:20 am
SFO
-
GMP
18h 00m1 stop
$808ANA
Thu, Jan 22 - Wed, Jan 28
ANA Logo
12:25 pm - 3:20 pm
GMP
-
SFO
19h 55m1 stop
ANA Logo
11:02 am - 10:30 pm
SFO
-
GMP
18h 28m2 stops
$861ANA
Mon, Feb 2 - Fri, Feb 6
ANA Logo
12:25 pm - 3:20 pm
GMP
-
SFO
19h 55m1 stop
ANA Logo
12:20 am - 11:20 am
SFO
-
GMP
18h 00m1 stop
$869ANA
Tue, Feb 10 - Tue, Feb 17

Hawaiian Airlines flights from Seoul to San Francisco

Our best Hawaiian Airlines deals on Seoul to San Francisco flight tickets
Hawaiian Airlines
Dec 15
ICN8:35 pmIncheon Intl
19h 10m
1 stop
SFO10:45 pmSan Francisco
Dec 31
SFO4:42 pmSan Francisco
32h 53m
1 stop
ICN6:35 pmIncheon Intl
$464
Find similar
Hawaiian Airlines
Dec 19
ICN8:35 pmIncheon Intl
18h 06m
1 stop
SFO9:41 pmSan Francisco
Dec 30
SFO9:41 pmSan Francisco
27h 54m
1 stop
ICN6:35 pmIncheon Intl
$477
Find similar
Hawaiian Airlines
Dec 22
ICN8:35 pmIncheon Intl
20h 19m
1 stop
SFO11:54 pmSan Francisco
Jan 14
SFO6:18 pmSan Francisco
31h 17m
1 stop
ICN6:35 pmIncheon Intl
$500
Find similar

Alaska Airlines flights from Seoul to San Francisco

Our best Alaska Airlines deals on Seoul to San Francisco flight tickets
Alaska Airlines
Dec 19
ICN8:35 pmIncheon Intl
20h 19m
1 stop
SFO11:54 pmSan Francisco
Jan 6
SFO9:41 pmSan Francisco
27h 54m
1 stop
ICN6:35 pmIncheon Intl
$481
Find similar
Alaska Airlines
Dec 22
ICN8:35 pmIncheon Intl
18h 06m
1 stop
SFO9:41 pmSan Francisco
Jan 22
SFO7:00 amSan Francisco
18h 35m
1 stop
ICN6:35 pmIncheon Intl
$490
Find similar
Alaska Airlines
Dec 21
ICN8:35 pmIncheon Intl
16h 42m
1 stop
SFO8:17 pmSan Francisco
Dec 25
SFO5:42 pmSan Francisco
31h 53m
1 stop
ICN6:35 pmIncheon Intl
$494
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Seoul to San Francisco 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 9, 2025.
Use the filters below to find and compare flights from Seoul to San Francisco that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

IncheonSan Francisco

ICN - SFO

ICNSFO

Incheon Intl

Wed 2/18

5:55 pm-8:34 pm

1 stop19h 39m

San Francisco

Sun 6/7

7:10 am-4:05 pm

1 stop16h 55m

$404

IncheonSan Francisco

ICN - SFO

ICNSFO

Incheon Intl

Fri 1/30

5:55 pm-3:35 pm

1 stop14h 40m

San Francisco

Mon 6/1

7:30 pm-4:05 pm

1 stop28h 35m

$414

IncheonSan Francisco

ICN - SFO

ICNSFO

Incheon Intl

Sat 2/28

6:55 pm-3:35 pm

1 stop13h 40m

San Francisco

Mon 3/2

11:20 am-5:10 pm

1 stop36h 50m

$438

IncheonSan Francisco

ICN - SFO

ICNSFO

Incheon Intl

Sun 2/1

5:55 pm-10:34 am

1 stop33h 39m

San Francisco

Mon 6/1

7:30 pm-4:05 pm

1 stop28h 35m

$445

IncheonSan Francisco

ICN - SFO

ICNSFO

Incheon Intl

Wed 1/21

5:55 pm-3:35 pm

1 stop14h 40m

San Francisco

Sat 1/24

7:30 am-4:00 pm

1 stop15h 30m

$451

IncheonSan Francisco

ICN - SFO

ICNSFO

Incheon Intl

Mon 2/2

7:15 pm-7:19 pm

2 stops41h 04m

San Francisco

Sat 5/30

4:23 pm-3:30 pm

2 stops31h 07m

$464

IncheonSan Francisco

ICN - SFO

ICNSFO

Incheon Intl

Wed 2/4

7:15 pm-9:37 pm

1 stop19h 22m

San Francisco

Sun 2/8

7:01 pm-4:45 pm

2 stops28h 44m

$465

SeoulSan Francisco

GMP - SFO

GMPSFO

Seoul Gimpo Intl

Thu 1/22

12:25 pm-3:20 pm

1 stop19h 55m

San Francisco

Wed 1/28

12:20 am-11:20 am

1 stop18h 00m

$808

SeoulSan Francisco

GMP - SFO

GMPSFO

Seoul Gimpo Intl

Mon 2/2

12:25 pm-3:20 pm

1 stop19h 55m

San Francisco

Fri 2/6

11:02 am-10:30 pm

2 stops18h 28m

$861

SeoulSan Francisco

GMP - SFO

GMPSFO

Seoul Gimpo Intl

Tue 2/10

12:25 pm-3:20 pm

1 stop19h 55m

San Francisco

Tue 2/17

12:20 am-11:20 am

1 stop18h 00m

$869

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 San Francisco from

How to get the cheapest flight ticket from Seoul to San Francisco

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 San Francisco?

If you aren’t able to travel to San Francisco during the month of November, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $495.

What is the cheapest day to depart on your flight to San Francisco?

The cheapest day to depart from Seoul to San Francisco is on a Wednesday when prices can be found for as low as $678. The most expensive day to fly to San Francisco is Saturday, with ticket prices averaging around $784.

What is the cheapest time of day to depart on your flight to San Francisco?

Our data shows that the cheapest Seoul to San Francisco flights are usually those with departure times at noon. Our users have found flights to San Francisco at noon for as low as $492. Flights in the morning are often more expensive with an average ticket price of $774.

What is the cheapest Seoul to San Francisco flight route?

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

How far in advance should I book a flight to San Francisco?

You are more likely to see cheaper flights to San Francisco from Seoul when booking weeks ahead of your departure date. In general, you can expect to find flights to San Francisco for around $670 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Francisco from Seoul for as low as $556 on momondo.

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

There are 4 cabin classes available to choose from on Seoul to San Francisco flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Seoul to San Francisco flight prices changed over time?

As of December 2025, prices for Seoul to San Francisco flights are approximately 27% cheaper when compared to flights at the same time last year.

When to book flights from Seoul to San Francisco

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

Cheap Seoul to San Francisco (SEL to SFO) flight deals and tips

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

Best Price Found

$323

Fastest flight time

10h 20m

Direct flights

Every day

Airports in San Francisco

1 airport
The best one-way flight to San Francisco from Seoul in the past 72 hours is $323. The best round-trip flight deal from Seoul to San Francisco found on momondo in the last 72 hours is $546.
The fastest flight from Seoul to San Francisco takes 10h 20m
Direct flights go from Seoul to San Francisco every day.
There is 1 airport near San Francisco: San Francisco (SFO)
Search flight deals

  • How far is Seoul to San Francisco by plane?

    There are 5606.2 mi between Seoul and San Francisco. A reasonable flight in good conditions will take 10h 35m.

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

    Prices for flights from Seoul to San Francisco Airport refresh daily.

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

  • How old do you have to be to fly from Seoul to San Francisco 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 Seoul to San Francisco Airport.

  • What documentation or ID do you need to fly to San Francisco Airport?

    The travel and health documents required for your trip to San Francisco 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 San Francisco 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 Seoul to San Francisco?

  • What is the most popular airline from Seoul to San Francisco?

Best airlines flying from Seoul to San Francisco

Compare and see reviews for airlines that fly from Seoul to San Francisco with momondo
Airline
Rating
Free Cancellation
Price
Air CanadaPriceFrom $381Free CancellationRating
7.1
10,514 reviews
Search Air Canada flights
United AirlinesPriceFrom $416Free CancellationRating
7.4
9,088 reviews
Search United Airlines flights
Korean AirPriceFrom $448Free CancellationRating
8.4
1,183 reviews
Search Korean Air flights
Asiana AirlinesPriceFrom $450Free CancellationRating
8.2
490 reviews
Search Asiana Airlines flights
AIR PREMIAPriceFrom $481Free CancellationRating
8.3
72 reviews
Search AIR PREMIA flights
DeltaPriceFrom $595Free CancellationRating
7.9
8,010 reviews
Search Delta flights

  • Korean Air Flights From Seoul to San Francisco

    Korean Air flies from Seoul to San Francisco around 7 times per week, with 1,183 momondo users rating the airline 8.4/10. The cheapest Korean Air deal from Seoul to San Francisco in the last 72 hours was $448 (round-trip), much lower than the average airfare cost of $625 for Korean Air flights on this route.

  • AIR PREMIA Flights From Seoul to San Francisco

    Another popular option for Seoul to San Francisco flights is AIR PREMIA (8.3/10, 72 ratings). AIR PREMIA flies from Seoul to San Francisco around 4 times per week, with deals starting from $481 round-trip and rising to an average price of around $649.

Traveling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Santa Cruz
Carmel-by-the-Sea
Modesto
Sonoma
Bodega Bay
Roseville
Hayward
Big Sur
Calistoga
Santa Clara
Walnut Creek
Berkeley
Daly City
Fremont
Half Moon Bay
Vallejo
Salinas
Livermore
Turlock
Sunnyvale

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Seoul to San Francisco for you.

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

Yes. All flights to San Francisco from Seoul on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo helps you find the best flight between Seoul and San Francisco by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Of course. momondo tracks the price of Seoul to San Francisco 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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