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Cheap flights from Seoul to Los Angeles from $475

1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Seoul to Los Angeles

Cheap round-trip flights

Enter your travel dates to find the best prices.
Lufthansa Logo
4:50 pm - 3:22 pmICN  Incheon Intl-ONT Ontario
14h 32m1 stop San Francisco
Lufthansa Logo
6:00 am - 4:15 pmONT  Ontario-ICN Incheon Intl
18h 15m1 stop San Francisco
$854Lufthansa
Thu, Oct 15 - Wed, Oct 28
United Airlines Logo
12:45 pm - 12:29 pmICN  Incheon Intl-ONT Ontario
16h 44m1 stop San Francisco
United Airlines Logo
6:00 am - 4:15 pmONT  Ontario-ICN Incheon Intl
17h 15m1 stop San Francisco
$858United Airlines
Fri, Nov 20 - Wed, Dec 2
United Airlines Logo
6:00 pm - 3:33 pmICN  Incheon Intl-ONT Ontario
14h 33m1 stop San Francisco
United Airlines Logo
1:35 pm - 5:40 amONT  Ontario-ICN Incheon Intl
23h 05m1 stop San Francisco
$858United Airlines
Wed, Nov 18 - Sun, Nov 22
United Airlines Logo
6:00 pm - 8:51 pmICN  Incheon Intl-ONT Ontario
19h 51m2 stops San Francisco Denver Intl
United Airlines Logo
1:35 pm - 5:40 amONT  Ontario-ICN Incheon Intl
23h 05m1 stop San Francisco
$858United Airlines
Wed, Nov 18 - Sun, Nov 22
United Airlines Logo
4:50 pm - 10:23 amICN  Incheon Intl-ONT Ontario
33h 33m1 stop San Francisco
United Airlines Logo
5:00 am - 4:20 amONT  Ontario-ICN Incheon Intl
31h 20m2 stops Denver Intl San Francisco
$858United Airlines
Mon, Oct 12 - Wed, Oct 21
United Airlines Logo
12:45 pm - 12:29 pmICN  Incheon Intl-ONT Ontario
16h 44m1 stop San Francisco
United Airlines Logo
6:00 am - 4:15 pmONT  Ontario-ICN Incheon Intl
17h 15m1 stop San Francisco
$859United Airlines
Thu, Nov 12 - Sun, Nov 15
United Airlines Logo
12:45 pm - 12:29 pmICN  Incheon Intl-ONT Ontario
16h 44m1 stop San Francisco
United Airlines Logo
6:00 am - 4:15 pmONT  Ontario-ICN Incheon Intl
17h 15m1 stop San Francisco
$859United Airlines
Fri, Nov 20 - Wed, Dec 2
United Airlines Logo
6:00 pm - 3:33 pmICN  Incheon Intl-ONT Ontario
14h 33m1 stop San Francisco
United Airlines Logo
4:03 pm - 5:40 amONT  Ontario-ICN Incheon Intl
20h 37m1 stop San Francisco
$859United Airlines
Wed, Nov 18 - Wed, Jan 13
United Airlines Logo
4:50 pm - 10:51 pmICN  Incheon Intl-ONT Ontario
22h 01m1 stop San Francisco
United Airlines Logo
5:00 am - 4:40 amONT  Ontario-ICN Incheon Intl
31h 40m2 stops Denver Intl San Francisco
$859United Airlines
Wed, Oct 21 - Sun, Oct 25
United Airlines Logo
4:50 pm - 10:51 pmICN  Incheon Intl-ONT Ontario
22h 01m1 stop San Francisco
United Airlines Logo
6:00 am - 4:40 amONT  Ontario-ICN Incheon Intl
30h 40m1 stop San Francisco
$859United Airlines
Wed, Oct 21 - Sun, Oct 25

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Lufthansa flights from Seoul to Ontario

Our best Lufthansa deals on Seoul to Ontario flight tickets
Lufthansa
Oct 15
ICN4:50 pmIncheon Intl
14h 32m
1 stop
ONT3:22 pmOntario
Oct 28
ONT6:00 amOntario
18h 15m
1 stop
ICN4:15 pmIncheon Intl
$854
Lufthansa
Oct 15
ICN4:50 pmIncheon Intl
14h 32m
1 stop
ONT3:22 pmOntario
Oct 28
ONT6:00 amOntario
18h 15m
1 stop
ICN4:15 pmIncheon Intl
$861
Lufthansa
Oct 15
ICN4:50 pmIncheon Intl
14h 32m
1 stop
ONT3:22 pmOntario
Oct 28
ONT6:00 amOntario
18h 15m
1 stop
ICN4:15 pmIncheon Intl
$862

United Airlines flights from Seoul to Ontario

Our best United Airlines deals on Seoul to Ontario flight tickets
United Airlines
Oct 1
ICN11:30 amIncheon Intl
22h 06m
1 stop
ONT5:36 pmOntario
Oct 4
ONT6:07 amOntario
30h 13m
1 stop
ICN4:20 amIncheon Intl
$858
United Airlines
Oct 21
ICN4:50 pmIncheon Intl
22h 01m
1 stop
ONT10:51 pmOntario
Oct 25
ONT6:00 amOntario
30h 40m
1 stop
ICN4:40 amIncheon Intl
$859
United Airlines
Oct 2
ICN4:50 pmIncheon Intl
35h 56m
2 stops
ONT12:46 pmOntario
Oct 5
ONT6:07 amOntario
30h 13m
1 stop
ICN4:20 amIncheon Intl
$860

momondo Fare Finder

 
Use the filters below to find and compare flights from Seoul to Ontario that are best for you.

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Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

IncheonOntario

ICN Incheon Intl - ONT Ontario

ICNONT

Incheon Intl

Thu 10/15

4:50 pm-3:22 pm

1 stop14h 32m

Ontario

Wed 10/28

6:00 am-4:15 pm

1 stop18h 15m

$854

IncheonOntario

ICN Incheon Intl - ONT Ontario

ICNONT

Incheon Intl

Fri 11/20

12:45 pm-12:29 pm

1 stop16h 44m

Ontario

Wed 12/2

6:00 am-4:15 pm

1 stop17h 15m

$858

IncheonOntario

ICN Incheon Intl - ONT Ontario

ICNONT

Incheon Intl

Wed 11/18

6:00 pm-3:33 pm

1 stop14h 33m

Ontario

Sun 11/22

1:35 pm-5:40 am

1 stop23h 05m

$858

IncheonOntario

ICN Incheon Intl - ONT Ontario

ICNONT

Incheon Intl

Wed 11/18

6:00 pm-8:51 pm

2 stops19h 51m

Ontario

Sun 11/22

1:35 pm-5:40 am

1 stop23h 05m

$858

IncheonOntario

ICN Incheon Intl - ONT Ontario

ICNONT

Incheon Intl

Mon 10/12

4:50 pm-10:23 am

1 stop33h 33m

Ontario

Wed 10/21

5:00 am-4:20 am

2 stops31h 20m

$858

IncheonOntario

ICN Incheon Intl - ONT Ontario

ICNONT

Incheon Intl

Thu 11/12

12:45 pm-12:29 pm

1 stop16h 44m

Ontario

Sun 11/15

6:00 am-4:15 pm

1 stop17h 15m

$859

IncheonOntario

ICN Incheon Intl - ONT Ontario

ICNONT

Incheon Intl

Fri 11/20

12:45 pm-12:29 pm

1 stop16h 44m

Ontario

Wed 12/2

6:00 am-4:15 pm

1 stop17h 15m

$859

IncheonOntario

ICN Incheon Intl - ONT Ontario

ICNONT

Incheon Intl

Wed 11/18

6:00 pm-3:33 pm

1 stop14h 33m

Ontario

Wed 1/13

4:03 pm-5:40 am

1 stop20h 37m

$859

IncheonOntario

ICN Incheon Intl - ONT Ontario

ICNONT

Incheon Intl

Wed 10/21

4:50 pm-10:51 pm

1 stop22h 01m

Ontario

Sun 10/25

5:00 am-4:40 am

2 stops31h 40m

$859

IncheonOntario

ICN Incheon Intl - ONT Ontario

ICNONT

Incheon Intl

Wed 10/21

4:50 pm-10:51 pm

1 stop22h 01m

Ontario

Sun 10/25

6:00 am-4:40 am

1 stop30h 40m

$859

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 Los Angeles from

How to get the cheapest flight ticket from Seoul to Ontario

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 airline that flies from Seoul to Ontario?

Alaska Airlines is the most popular carrier operating from Seoul to Ontario

What airlines fly to Ontario?

AIR PREMIA, Asiana Airlines and United Airlines are the top three most popular airlines that fly to Ontario from Seoul according to our data. AIR PREMIA is the first choice among our users, with 56% of people opting to fly with this airline when traveling to Ontario. Keep in mind that there are 7 different airlines that fly to Ontario on a routine basis, so you have a few additional options to choose from.

When to book flights from Seoul to Ontario

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

Cheap Seoul to Ontario (SEL to ONT) flight deals and tips

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

Best Price Found

$475

Fastest flight time

14h 02m

Direct flights

None
The best one-way flight to Ontario from Seoul in the past 72 hours is $475. The best round-trip flight deal from Seoul to Ontario found on momondo in the last 72 hours is $854.
The fastest flight from Seoul to Ontario takes 14h 02m
There are no direct flights from Seoul to Ontario. There are no popular flight routes from Seoul to Ontario.
Search flight deals

Frequently asked questions about flying from Seoul to Ontario

  • How far is Seoul to Ontario by plane?

    Seoul and Ontario are 5976.3 mi apart from one another. By plane, this route typically takes 14h 02m.

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

    Prices for flights from Seoul to Ontario Airport refresh daily.

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seoul to Ontario Airport.

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

    The required travel and health documents for your Ontario Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Ontario Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Why use momondo?

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

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

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

Flights from Seoul to Ontario with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Seoul to Ontario?

momondo provides multiple filters to help you find the best flight to Ontario from Seoul. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

If you are not ready to book a flight from Seoul to Ontario now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Ontario and let you know when they change.

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