How does KAYAK find such low prices on flights from California to Seoul?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from California to Seoul.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from California to Seoul?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seoul from California is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from California to Seoul?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Seoul with an airline and back to California with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from California to Seoul?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Seoul from California up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

$342 CHEAP FLIGHTS from California to Seoul

Save 21% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Flight Deals

Cheap Flights from California to Seoul

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Direct

Recent round-trip flight deals from California to Seoul

Mon, Nov 16 - Mon, Nov 23

10:25 pm - 11:40 amLAX Los Angeles-ICN Incheon Intl

20h 15m1 stop Beijing Capital

1:10 pm - 7:00 pmICN Incheon Intl-LAX Los Angeles

22h 50m1 stop Beijing Capital

$630Air China

Mon, Nov 16 - Mon, Nov 23

10:25 pm - 9:55 pmLAX Los Angeles-ICN Incheon Intl

30h 30m1 stop Beijing Capital

11:10 am - 7:00 pmICN Incheon Intl-LAX Los Angeles

24h 50m1 stop Beijing Capital

$640Air China

Wed, Nov 4 - Fri, Nov 13

3:20 pm - 9:20 pmSFO San Francisco-ICN Incheon Intl

13h 00mnonstop

7:45 pm - 1:20 pmICN Incheon Intl-SFO San Francisco

10h 35mnonstop

$643AIR PREMIA

Fri, Oct 30 - Fri, Nov 13

4:20 pm - 9:20 pmSFO San Francisco-ICN Incheon Intl

13h 00mnonstop

7:45 pm - 1:20 pmICN Incheon Intl-SFO San Francisco

10h 35mnonstop

$643AIR PREMIA

Fri, Oct 30 - Fri, Nov 13

10:55 pm - 3:25 pmSFO San Francisco-ICN Incheon Intl

24h 30m1 stop Newark

12:45 pm - 6:30 amICN Incheon Intl-SFO San Francisco

10h 45mnonstop

$649Lufthansa

Sun, Nov 15 - Tue, Nov 24

10:55 pm - 12:20 pmLAX Los Angeles-ICN Incheon Intl

20h 25m1 stop Xiamen Gaoqi Intl

1:20 pm - 7:00 pmICN Incheon Intl-LAX Los Angeles

22h 40m1 stop Xiamen Gaoqi Intl

$651XiamenAir

Sun, Nov 22 - Thu, Nov 26

10:55 pm - 12:20 pmLAX Los Angeles-ICN Incheon Intl

20h 25m1 stop Xiamen Gaoqi Intl

1:20 pm - 7:00 pmICN Incheon Intl-LAX Los Angeles

22h 40m1 stop Xiamen Gaoqi Intl

$651XiamenAir

Fri, Oct 30 - Fri, Nov 13

10:55 pm - 3:25 pmSFO San Francisco-ICN Incheon Intl

24h 30m1 stop Newark

6:30 pm - 10:27 amICN Incheon Intl-SFO San Francisco

32h 57m1 stop Newark

$658Lufthansa

Fri, Oct 30 - Fri, Nov 13

4:30 pm - 3:25 pmSFO San Francisco-ICN Incheon Intl

30h 55m1 stop Newark

12:45 pm - 6:30 amICN Incheon Intl-SFO San Francisco

10h 45mnonstop

$660United Airlines

Fri, Oct 30 - Fri, Nov 13

11:20 am - 4:15 pmSFO San Francisco-ICN Incheon Intl

12h 55mnonstop

12:45 pm - 6:30 amICN Incheon Intl-SFO San Francisco

10h 45mnonstop

$660United Airlines

Recent last minute flight deals from California to Seoul

Thu, Oct 8 - Wed, Oct 21

10:25 am - 3:00 pmSFO San Francisco-ICN Incheon Intl

12h 35mnonstop

4:50 pm - 11:40 amICN Incheon Intl-SFO San Francisco

10h 50mnonstop

$663United Airlines

Thu, Oct 8 - Tue, Oct 13

10:25 am - 3:00 pmSFO San Francisco-ICN Incheon Intl

12h 35mnonstop

4:50 pm - 11:40 amICN Incheon Intl-SFO San Francisco

10h 50mnonstop

$663United Airlines

Thu, Oct 8 - Thu, Oct 15

10:25 am - 3:00 pmSFO San Francisco-ICN Incheon Intl

12h 35mnonstop

4:50 pm - 11:40 amICN Incheon Intl-SFO San Francisco

10h 50mnonstop

$697Asiana Airlines

Sun, Oct 11 - Sat, Nov 21

11:45 pm - 4:20 amSFO San Francisco-ICN Incheon Intl

12h 35mnonstop

6:00 pm - 11:45 amICN Incheon Intl-SFO San Francisco

10h 45mnonstop

$714Asiana Airlines

Tue, Oct 6 - Wed, Oct 14

1:00 pm - 12:25 amSFO San Francisco-ICN Incheon Intl

19h 25m1 stop Hong Kong Intl

1:55 am - 10:55 amICN Incheon Intl-SFO San Francisco

25h 00m1 stop Hong Kong Intl

$812Cathay Pacific

Tue, Oct 6 - Wed, Oct 14

1:00 pm - 12:25 amSFO San Francisco-ICN Incheon Intl

19h 25m1 stop Hong Kong Intl

3:10 pm - 10:40 pmICN Incheon Intl-SFO San Francisco

23h 30m1 stop Hong Kong Intl

$821Cathay Pacific

Wed, Oct 7 - Sat, Oct 17

4:49 pm - 4:40 amSFO San Francisco-ICN Incheon Intl

19h 51m1 stop Los Angeles

4:00 pm - 10:40 amICN Incheon Intl-SFO San Francisco

10h 40mnonstop

$872Korean Air

Wed, Oct 7 - Sat, Oct 17

4:49 pm - 4:40 amSFO San Francisco-ICN Incheon Intl

19h 51m1 stop Los Angeles

7:40 pm - 8:59 amICN Incheon Intl-SFO San Francisco

29h 19m1 stop Los Angeles

$887Korean Air

Mon, Oct 5 - Mon, Nov 16

12:30 am - 7:15 pmSFO San Francisco-ICN Incheon Intl

26h 45m1 stop Manila Ninoy Aquino Intl

7:30 am - 7:45 pmICN Incheon Intl-SFO San Francisco

29h 15m1 stop Manila Ninoy Aquino Intl

$888Philippine Airlines

Sun, Oct 11 - Tue, Oct 13

12:25 pm - 6:00 amLAX Los Angeles-ICN Incheon Intl

25h 35m1 stop Manila Ninoy Aquino Intl

8:30 pm - 9:30 amICN Incheon Intl-LAX Los Angeles

29h 00m1 stop Manila Ninoy Aquino Intl

$944Philippine Airlines

Useful Info

Low season	January
High season	March
Cheapest flight	$342

Best time to beat the crowds with an average 13% drop in price.

Most popular time to fly and prices are also 11% lower on average.

Flight from San Francisco to Seoul Incheon Airport

Verified travelerFlew with Asiana Airlines-Mar 2026

Walk straight to arrivals upon getting to Incheon, and take their airport bus route if convenient.

DexterFlew with Asiana Airlines-Feb 2026

If traveling with toddlers or picky eaters, make sure you feed or buy food your kids will eat. Leaving San Francisco my kids didn’t eat any of the food coming from the SFO airport.

How does KAYAK find such low prices on flights from California to Seoul?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from California to Seoul.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from California to Seoul?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seoul from California is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from California to Seoul?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Seoul with an airline and back to California with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from California to Seoul?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Seoul from California up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.