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Cheap flights from San Francisco to Seoul from $341

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 9/1. 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

AIR PREMIA Logo
3:30 pm - 8:30 pmSFO-ICN
13h 00mnonstop
AIR PREMIA Logo
6:20 pm - 1:00 pmICN-SFO
10h 40mnonstop
$604AIR PREMIA
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Sun, Aug 24 - Mon, Sep 15
AIR PREMIA Logo
3:30 pm - 8:30 pmSFO-ICN
13h 00mnonstop
AIR PREMIA Logo
6:20 pm - 1:00 pmICN-SFO
10h 40mnonstop
$606AIR PREMIA
Find Deal
Fri, Aug 22 - Mon, Sep 15
United Airlines Logo
11:55 pm - 4:20 amSFO-ICN
12h 25mnonstop
United Airlines Logo
4:50 pm - 11:35 amICN-SFO
10h 45mnonstop
$652United Airlines
Find Deal
Wed, Aug 27 - Wed, Sep 3
China Eastern Logo
12:00 pm - 3:25 pmSFO-ICN
35h 25m1 stop
China Eastern Logo
4:35 pm - 9:05 amICN-SFO
32h 30m1 stop
$654China Eastern
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Mon, Sep 1 - Fri, Sep 5
China Eastern Logo
12:00 pm - 2:50 pmSFO-ICN
34h 50m2 stops
China Eastern Logo
12:55 pm - 9:05 amICN-SFO
36h 10m1 stop
$655China Eastern
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Mon, Sep 1 - Fri, Sep 5
United Airlines Logo
10:40 am - 3:00 pmSFO-ICN
12h 20mnonstop
United Airlines Logo
4:50 pm - 11:35 amICN-SFO
10h 45mnonstop
$659United Airlines
Find Deal
Tue, Aug 26 - Tue, Sep 2
Alaska Airlines Logo
8:20 am - 6:35 pmSFO-ICN
18h 15m1 stop
Alaska Airlines Logo
8:35 pm - 11:50 pmICN-SFO
20h 15m1 stop
$676Alaska Airlines
Find Deal
Thu, Oct 16 - Fri, Nov 14
Alaska Airlines Logo
7:40 pm - 6:35 pmSFO-ICN
29h 55m1 stop
Alaska Airlines Logo
9:25 pm - 5:15 amICN-SFO
24h 50m1 stop
$682Alaska Airlines
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Wed, Jan 7 - Wed, Jan 14
Japan Airlines Logo
12:25 pm - 9:50 pmSFO-GMP
17h 25m1 stop
Japan Airlines Logo
7:20 pm - 7:02 pmGMP-SFO
39h 42m2 stops
$840Japan Airlines
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Wed, Sep 3 - Wed, Sep 10
Japan Airlines Logo
12:25 pm - 9:50 pmSFO-GMP
17h 25m1 stop
Japan Airlines Logo
12:05 pm - 3:00 pmGMP-SFO
18h 55m2 stops
$846Japan Airlines
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Wed, Aug 27 - Wed, Sep 3

AIR PREMIA flights from San Francisco to Seoul

Our best AIR PREMIA deals on San Francisco to Seoul flight tickets
AIR PREMIA
Aug 24
SFO3:30 pmSan Francisco
13h 00m
ICN8:30 pmIncheon Intl
Sep 15
ICN6:20 pmIncheon Intl
10h 40m
SFO1:00 pmSan Francisco
$604
Find similar
AIR PREMIA
Aug 22
SFO3:30 pmSan Francisco
13h 00m
ICN8:30 pmIncheon Intl
Sep 15
ICN6:20 pmIncheon Intl
10h 40m
SFO1:00 pmSan Francisco
$606
Find similar
AIR PREMIA
Nov 16
SFO2:30 pmSan Francisco
13h 00m
ICN8:30 pmIncheon Intl
Nov 23
ICN6:55 pmIncheon Intl
10h 05m
SFO12:00 pmSan Francisco
$608
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Hawaiian Airlines flights from San Francisco to Seoul

Our best Hawaiian Airlines deals on San Francisco to Seoul flight tickets
Hawaiian Airlines
Nov 4
SFO2:46 pmSan Francisco
34h 49m
1 stop
ICN6:35 pmIncheon Intl
Nov 23
ICN9:25 pmIncheon Intl
15h 35m
1 stop
SFO8:00 pmSan Francisco
$623
Find similar
Hawaiian Airlines
Nov 5
SFO8:00 amSan Francisco
17h 35m
1 stop
ICN6:35 pmIncheon Intl
Nov 19
ICN9:25 pmIncheon Intl
25h 52m
1 stop
SFO6:17 amSan Francisco
$658
Find similar
Hawaiian Airlines
Nov 14
SFO7:25 amSan Francisco
19h 00m
1 stop
ICN7:25 pmIncheon Intl
Nov 23
ICN9:25 pmIncheon Intl
15h 35m
1 stop
SFO8:00 pmSan Francisco
$671
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See travel insights to Seoul from

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

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 Seoul?

The month of March is another great option to travel to Seoul, with average flight prices from San Francisco averaging around $708.

What is the cheapest day to depart on your flight to Seoul?

According to our data, Monday is the cheapest day to fly to Seoul from San Francisco. The lowest ticket price found for a Monday departure recently was $831. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. The most expensive day to fly to Seoul is Saturday, with ticket prices averaging around $939.

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

Flying to Seoul from San Francisco in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $756 when looking at flights departing in the afternoon. In the evening is when there is more demand to fly to Seoul, so prices are often more expensive at around $891 per ticket.

What is the cheapest San Francisco to Seoul flight route?

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

How far in advance should I book a flight to Seoul?

You are more likely to see cheaper flights to Seoul from San Francisco when booking week ahead of your departure date. In general, you can expect to find flights to Seoul for around $893 when searching week out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seoul from San Francisco for as low as $727 on momondo.

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

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

As of July 2025, prices for San Francisco to Seoul flights are approximately 55% cheaper when compared to flights at the same time last year.

When to book flights from San Francisco to Seoul

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

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

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

Best Price Found

$341

Fastest flight time

12h 20m

Direct flights

Every day

Airports in Seoul

2 airports
The best one-way flight to Seoul from San Francisco in the past 72 hours is $341. The best round-trip flight deal from San Francisco to Seoul found on momondo in the last 72 hours is $604.
The fastest flight from San Francisco to Seoul takes 12h 20m
Direct flights go from San Francisco to Seoul every day.
There are 2 airports near Seoul: Incheon Intl (ICN), Seoul Gimpo Intl (GMP)
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  • How far is San Francisco to Seoul by plane?

    Seoul is 5606.2 mi away from San Francisco. A reasonable flight in good conditions will take 12h 20m.

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

    Prices for flights from San Francisco Airport to Seoul were last updated today.

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from San Francisco Airport to Seoul.

  • What documentation or ID do you need to fly to Seoul?

    The necessary travel and health documents for your Seoul trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

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

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

Best airlines flying from San Francisco to Seoul

Compare and see reviews for airlines that fly from San Francisco to Seoul with momondo
Airline
Rating
Free Cancellation
Price
Hawaiian AirlinesPriceFrom $422Free CancellationRating
7.8
2,571 reviews
Search Hawaiian Airlines flights
AIR PREMIAPriceFrom $624Free CancellationRating
8.2
57 reviews
Search AIR PREMIA flights
China EasternPriceFrom $651Free CancellationRating
7.2
151 reviews
Search China Eastern flights
Asiana AirlinesPriceFrom $656Free CancellationRating
8.2
454 reviews
Search Asiana Airlines flights
United AirlinesPriceFrom $660Free CancellationRating
7.4
8,858 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $675Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights
Korean AirPriceFrom $778Free CancellationRating
8.4
1,109 reviews
Search Korean Air flights
Air CanadaPriceFrom $789Free CancellationRating
7.1
9,725 reviews
Search Air Canada flights
Cathay PacificPriceFrom $809Free CancellationRating
7.6
933 reviews
Search Cathay Pacific flights
Vietnam AirlinesPriceFrom $833Free CancellationRating
7.5
195 reviews
Search Vietnam Airlines flights

  • Korean Air Flights From San Francisco to Seoul

    Korean Air is one of the most popular airlines flying from San Francisco to Seoul, operating 7 flights/week on average for this route. A good Korean Air flight deal for San Francisco to Seoul starts from $778 round-trip, up to an average price of $990. Our users have rated Korean Air at 8.4/10.

  • AIR PREMIA Flights From San Francisco to Seoul

    Another popular option for San Francisco to Seoul flights is AIR PREMIA (8.2/10, 57 ratings). AIR PREMIA flies from San Francisco to Seoul around 5 times per week, with deals starting from $624 round-trip and rising to an average price of around $796.

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from San Francisco to Seoul. Millions of users trust and use momondo every year so you are in good hands.

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

Yes. momondo enables you to select and highlight flights to Seoul from San Francisco with this policy.

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

Once all potential San Francisco to Seoul flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Of course. momondo tracks the price of San Francisco to Seoul 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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Find better results for your trip to South Korea

Fly into one of these airports located in Seoul

Airports listed have a maximum distance of 30.3 mi from Seoul
Seoul Gimpo Intl Airport
Incheon Intl Airport