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Cheap flights from Seoul to San Francisco from $388

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 9/10. 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

United Airlines Logo
11:30 am - 6:10 amICN-SFO
10h 40mnonstop
United Airlines Logo
10:30 am - 3:15 pmSFO-ICN
12h 45mnonstop
$573United Airlines
Find Deal
mar., sep. 9 - lun., oct. 27
United Airlines Logo
4:50 pm - 11:35 amICN-SFO
10h 45mnonstop
United Airlines Logo
11:45 pm - 4:20 amSFO-ICN
12h 35mnonstop
$598United Airlines
Find Deal
lun., sep. 8 - sáb., sep. 13
AIR PREMIA Logo
6:55 pm - 12:00 pmICN-SFO
10h 05mnonstop
AIR PREMIA Logo
2:30 pm - 8:30 pmSFO-ICN
13h 00mnonstop
$599AIR PREMIA
Find Deal
mié., dic. 24 - sáb., ene. 3
AIR PREMIA Logo
6:20 pm - 1:00 pmICN-SFO
10h 40mnonstop
AIR PREMIA Logo
3:30 pm - 8:30 pmSFO-ICN
13h 00mnonstop
$600AIR PREMIA
Find Deal
vie., sep. 12 - vie., sep. 19
Asiana Airlines Logo
8:55 pm - 3:30 pmICN-SFO
10h 35mnonstop
Asiana Airlines Logo
11:30 pm - 4:30 amSFO-ICN
13h 00mnonstop
$603Asiana Airlines
Find Deal
mar., oct. 14 - mar., oct. 21
Asiana Airlines Logo
8:55 pm - 3:30 pmICN-SFO
10h 35mnonstop
Asiana Airlines Logo
11:30 pm - 4:30 amSFO-ICN
13h 00mnonstop
$605Asiana Airlines
Find Deal
mar., oct. 21 - vie., oct. 24
Korean Air Logo
4:00 pm - 9:30 amICN-SFO
10h 30mnonstop
Korean Air Logo
11:40 am - 5:40 pmSFO-ICN
13h 00mnonstop
$610Korean Air
Find Deal
mar., dic. 23 - mié., dic. 31
Korean Air Logo
4:00 pm - 9:30 amICN-SFO
10h 30mnonstop
Korean Air Logo
11:40 am - 5:40 pmSFO-ICN
13h 00mnonstop
$624Korean Air
Find Deal
jue., nov. 13 - jue., nov. 20
Air Canada Logo
6:55 pm - 3:35 pmICN-SFO
13h 40m1 stop
Air Canada Logo
7:30 am - 5:10 pmSFO-ICN
16h 40m1 stop
$625Air Canada
Find Deal
jue., dic. 25 - jue., ene. 1
Air Canada Logo
6:55 pm - 12:20 pmICN-SFO
34h 25m1 stop
Air Canada Logo
1:20 pm - 5:10 pmSFO-ICN
34h 50m1 stop
$627Air Canada
Find Deal
mié., dic. 24 - mar., dic. 30

United Airlines flights from Seoul to San Francisco

Our best United Airlines deals on Seoul to San Francisco flight tickets
United Airlines
Sep 9
ICN11:30 amIncheon Intl
10h 40m
SFO6:10 amSan Francisco
Oct 27
SFO10:30 amSan Francisco
12h 45m
ICN3:15 pmIncheon Intl
$573
Find similar
United Airlines
Sep 8
ICN4:50 pmIncheon Intl
10h 45m
SFO11:35 amSan Francisco
Sep 27
SFO10:35 amSan Francisco
12h 25m
ICN3:00 pmIncheon Intl
$597
Find similar
United Airlines
Sep 8
ICN4:50 pmIncheon Intl
10h 45m
SFO11:35 amSan Francisco
Sep 13
SFO11:45 pmSan Francisco
12h 35m
ICN4:20 amIncheon Intl
$598
Find similar

ANA flights from Seoul to San Francisco

Our best ANA deals on Seoul to San Francisco flight tickets
ANA
Oct 23
GMP12:40 pmSeoul Gimpo Intl
19h 50m
1 stop
SFO4:30 pmSan Francisco
Oct 29
SFO1:20 amSan Francisco
29h 10m
1 stop
GMP10:30 pmSeoul Gimpo Intl
$860
Find similar
ANA
Oct 22
GMP12:40 pmSeoul Gimpo Intl
19h 50m
1 stop
SFO4:30 pmSan Francisco
Oct 26
SFO1:20 amSan Francisco
18h 00m
1 stop
GMP11:20 amSeoul Gimpo Intl
$870
Find similar
ANA
Sep 1
GMP7:40 amSeoul Gimpo Intl
18h 50m
1 stop
SFO10:30 amSan Francisco
Sep 10
SFO1:20 amSan Francisco
25h 15m
1 stop
GMP6:35 pmSeoul Gimpo Intl
$881
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 agosto 25, 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

mar. 9/9

11:30 am-6:10 am

Nonstop10h 40m

San Francisco

lun. 10/27

10:30 am-3:15 pm

Nonstop12h 45m

$573

IncheonSan Francisco

ICN - SFO

ICNSFO

Incheon Intl

lun. 9/8

4:50 pm-11:35 am

Nonstop10h 45m

San Francisco

sáb. 9/13

11:45 pm-4:20 am

Nonstop12h 35m

$598

IncheonSan Francisco

ICN - SFO

ICNSFO

Incheon Intl

mié. 12/24

6:55 pm-12:00 pm

Nonstop10h 05m

San Francisco

sáb. 1/3

2:30 pm-8:30 pm

Nonstop13h 00m

$599

IncheonSan Francisco

ICN - SFO

ICNSFO

Incheon Intl

vie. 9/12

6:20 pm-1:00 pm

Nonstop10h 40m

San Francisco

vie. 9/19

3:30 pm-8:30 pm

Nonstop13h 00m

$600

IncheonSan Francisco

ICN - SFO

ICNSFO

Incheon Intl

mar. 10/14

8:55 pm-3:30 pm

Nonstop10h 35m

San Francisco

mar. 10/21

11:30 pm-4:30 am

Nonstop13h 00m

$603

IncheonSan Francisco

ICN - SFO

ICNSFO

Incheon Intl

mar. 10/21

8:55 pm-3:30 pm

Nonstop10h 35m

San Francisco

vie. 10/24

11:30 pm-4:30 am

Nonstop13h 00m

$605

IncheonSan Francisco

ICN - SFO

ICNSFO

Incheon Intl

mar. 12/23

4:00 pm-9:30 am

Nonstop10h 30m

San Francisco

mié. 12/31

11:40 am-5:40 pm

Nonstop13h 00m

$610

IncheonSan Francisco

ICN - SFO

ICNSFO

Incheon Intl

jue. 11/13

4:00 pm-9:30 am

Nonstop10h 30m

San Francisco

jue. 11/20

11:40 am-5:40 pm

Nonstop13h 00m

$624

IncheonSan Francisco

ICN - SFO

ICNSFO

Incheon Intl

jue. 12/25

6:55 pm-3:35 pm

1 stop13h 40m

San Francisco

jue. 1/1

7:30 am-5:10 pm

1 stop16h 40m

$625

IncheonSan Francisco

ICN - SFO

ICNSFO

Incheon Intl

mié. 12/24

6:55 pm-12:20 pm

1 stop34h 25m

San Francisco

mar. 12/30

1:20 pm-5:10 pm

1 stop34h 50m

$627

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 June, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $585.

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 Monday when prices can be found for as low as $727. The most expensive day to fly to San Francisco is Saturday, with ticket prices averaging around $850.

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 $815.

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 $714 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 $606 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.

Can stopping save me money on Seoul to San Francisco flights?

No. A direct flight is the cheapest option for a flight between Seoul to San Francisco.

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

As of August 2025, prices for Seoul to San Francisco flights are approximately 52% 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

$397

Fastest flight time

10h 05m

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 $397. The best round-trip flight deal from Seoul to San Francisco found on momondo in the last 72 hours is $615.
The fastest flight from Seoul to San Francisco takes 10h 05m
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 05m.

  • 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
United AirlinesPriceFrom $438Free CancellationRating
7.4
8,940 reviews
Search United Airlines flights
Asiana AirlinesPriceFrom $456Free CancellationRating
8.2
477 reviews
Search Asiana Airlines flights
Korean AirPriceFrom $462Free CancellationRating
8.4
1,133 reviews
Search Korean Air flights
Air CanadaPriceFrom $463Free CancellationRating
7.1
10,000 reviews
Search Air Canada flights
AIR PREMIAPriceFrom $495Free CancellationRating
8.2
60 reviews
Search AIR PREMIA flights
DeltaPriceFrom $623Free CancellationRating
7.9
7,981 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 1,133 momondo users rating the airline 8.4/10. The cheapest Korean Air deal from Seoul to San Francisco in the last 72 hours was $462 (round-trip), much lower than the average airfare cost of $694 for Korean Air flights on this route.

  • Asiana Airlines Flights From Seoul to San Francisco

    Another popular option for Seoul to San Francisco flights is Asiana Airlines (8.2/10, 477 ratings). Asiana Airlines flies from Seoul to San Francisco around 21 times per week, with deals starting from $456 round-trip and rising to an average price of around $697.

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
Calistoga
Hayward
Bodega Bay
Roseville
Santa Clara
Big Sur
Daly City
Fremont
Berkeley
Walnut Creek
Half Moon Bay
South San Francisco
Vallejo
Redwood City
Pacific Grove
Salinas

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.

An easier way to manage your San Francisco trip

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