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

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 Incheon Airport.

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

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seoul Incheon Airport 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 Incheon Airport?

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 Incheon Airport 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 Incheon Airport?

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 Incheon Airport from California up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

$325 CHEAP FLIGHTS from California to Seoul Incheon (ICN)

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Flight Deals

Cheap Flights from California to Incheon Intl

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 Incheon Intl

Wed, Nov 4 - Wed, Nov 18

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

$640AIR PREMIA

Sun, Jan 10 - Wed, Feb 24

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

Mon, Oct 19 - Fri, Nov 20

11:25 pm - 4:35 pmLAX Los Angeles Los Angeles-ICN Incheon Intl

25h 10m1 stop Beijing Capital

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

22h 50m1 stop Beijing Capital

$647Air China

Sun, Nov 8 - Sun, Nov 15

1:20 pm - 4:35 pmLAX Los Angeles Los Angeles-ICN Incheon Intl

34h 15m1 stop Beijing Capital

9:55 pm - 7:00 pmICN Incheon Intl-LAX Los Angeles Los Angeles

38h 05m1 stop Beijing Daxing Intl

$647Air China

Thu, Sep 24 - Tue, Oct 6

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

12h 35mnonstop

11:30 am - 6:10 amICN Incheon Intl-SFO San Francisco

10h 40mnonstop

$654United Airlines

Wed, Sep 30 - Sat, Oct 10

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

$654United Airlines

Thu, Oct 29 - Thu, Nov 5

11:45 pm - 4:40 amSFO San Francisco-ICN Incheon Intl

12h 55mnonstop

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

10h 45mnonstop

$659Lufthansa

Thu, Oct 1 - Mon, Oct 5

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

$669Asiana Airlines

Tue, Sep 29 - Sun, Oct 4

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

12h 35mnonstop

11:30 am - 6:10 amICN Incheon Intl-SFO San Francisco

10h 40mnonstop

$684Asiana Airlines

Wed, Oct 21 - Wed, Oct 28

6:30 am - 9:40 pmLAS Las Vegas Harry Reid Intl-ICN Incheon Intl

23h 10m1 stop San Francisco

7:45 pm - 8:52 pmICN Incheon Intl-LAS Las Vegas Harry Reid Intl

17h 07m1 stop San Francisco

$736Multiple Airlines

Recent last minute flight deals from California to Incheon Intl

Sun, Sep 20 - Mon, Oct 5

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

12h 35mnonstop

11:30 am - 6:10 amICN Incheon Intl-SFO San Francisco

10h 40mnonstop

$654United Airlines

Sat, Sep 19 - Tue, Oct 6

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

12h 35mnonstop

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

10h 50mnonstop

$654United Airlines

Fri, Sep 18 - Fri, Oct 2

5:00 pm - 9:40 pmSFO San Francisco-ICN Incheon Intl

12h 40mnonstop

7:15 pm - 2:15 pmICN Incheon Intl-SFO San Francisco

11h 00mnonstop

$654AIR PREMIA

Sat, Sep 19 - Fri, Oct 2

3:30 pm - 8:10 pmSFO San Francisco-ICN Incheon Intl

12h 40mnonstop

7:15 pm - 2:15 pmICN Incheon Intl-SFO San Francisco

11h 00mnonstop

$654AIR PREMIA

Sun, Sep 20 - Mon, Nov 23

2:20 pm - 4:35 pmLAX Los Angeles Los Angeles-ICN Incheon Intl

34h 15m1 stop Beijing Capital

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

22h 50m1 stop Beijing Capital

$661Air China

Fri, Sep 18 - Mon, Sep 21

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

12h 35mnonstop

11:30 am - 6:10 amICN Incheon Intl-SFO San Francisco

10h 40mnonstop

$684Asiana Airlines

Thu, Sep 17 - Thu, Sep 24

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

12h 35mnonstop

11:30 am - 6:10 amICN Incheon Intl-SFO San Francisco

10h 40mnonstop

$684Asiana Airlines

Sun, Sep 20 - Mon, Nov 23

2:20 pm - 4:35 pmLAX Los Angeles Los Angeles-ICN Incheon Intl

34h 15m1 stop Beijing Capital

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

22h 50m1 stop Beijing Capital

$703Air China

Tue, Sep 15 - Thu, Oct 1

11:55 pm - 12:30 pmLAX Los Angeles Los Angeles-ICN Incheon Intl

20h 35m1 stop Xiamen Gaoqi Intl

1:30 pm - 8:00 pmICN Incheon Intl-LAX Los Angeles Los Angeles

22h 30m1 stop Xiamen Gaoqi Intl

$742XiamenAir

Sun, Sep 20 - Sun, Oct 4

11:55 pm - 12:30 pmLAX Los Angeles Los Angeles-ICN Incheon Intl

20h 35m1 stop Xiamen Gaoqi Intl

1:30 pm - 8:00 pmICN Incheon Intl-LAX Los Angeles Los Angeles

22h 30m1 stop Xiamen Gaoqi Intl

$817XiamenAir

Useful Info

Low season	January
High season	April
Cheapest flight	$325

Best time to beat the crowds with an average 8% drop in price.

Most popular time to fly and prices are also 10% 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 Incheon Airport?
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 Incheon Airport.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from California to Seoul Incheon Airport?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seoul Incheon Airport 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 Incheon Airport?
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 Incheon Airport 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 Incheon Airport?
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 Incheon Airport from California up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

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$325 Find Cheap Flights from California to Seoul Incheon Airport - Compare and Save

Cheap Flights from California to Incheon Intl

Recent round-trip flight deals from California to Incheon Intl

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Flights from California to Incheon Intl: the best tips from KAYAK users

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