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Cheap flights from South Korea to Los Angeles from $391

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from South Korea to Los Angeles departing on 3/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from South Korea to Los Angeles

Recent round-trip flight deals from South Korea to Los Angeles

Enter your travel dates to find the best prices.
Asiana Airlines Logo
6:00 pm - 5:41 pm
ICN
-
ONT
16h 41m
1 stop
Asiana Airlines Logo
6:15 am - 3:15 pm
ONT
-
ICN
17h 00m
1 stop
$508Asiana Airlines
Tue, Mar 3 - Tue, Mar 10
United Airlines Logo
6:00 pm - 5:41 pm
ICN
-
ONT
16h 41m
1 stop
United Airlines Logo
6:10 am - 4:15 pm
ONT
-
ICN
17h 05m
1 stop
$515United Airlines
Mon, Feb 16 - Thu, Feb 19
Hawaiian Airlines Logo
8:35 pm - 11:08 am
ICN
-
ONT
30h 33m
1 stop
Hawaiian Airlines Logo
6:00 am - 6:35 pm
ONT
-
ICN
20h 35m
1 stop
$582Hawaiian Airlines
Sun, Mar 8 - Sun, Apr 12
Hawaiian Airlines Logo
8:35 pm - 11:32 pm
ICN
-
ONT
19h 57m
1 stop
Hawaiian Airlines Logo
6:14 am - 6:35 pm
ONT
-
ICN
19h 21m
1 stop
$584Hawaiian Airlines
Sat, Feb 21 - Thu, Feb 26
Multiple Airlines Logo
8:35 pm - 3:08 pm
ICN
-
ONT
35h 33m
1 stop
Multiple Airlines Logo
12:02 pm - 6:35 pm
ONT
-
ICN
37h 33m
1 stop
$595Multiple Airlines
Mon, Feb 23 - Sat, Feb 28
Multiple Airlines Logo
8:35 pm - 11:32 pm
ICN
-
ONT
19h 57m
1 stop
Multiple Airlines Logo
4:02 pm - 6:35 pm
ONT
-
ICN
33h 33m
1 stop
$598Multiple Airlines
Mon, Feb 23 - Sat, Feb 28
Multiple Airlines Logo
8:35 pm - 11:32 pm
ICN
-
ONT
19h 57m
1 stop
Multiple Airlines Logo
6:14 am - 6:35 pm
ONT
-
ICN
19h 21m
1 stop
$606Multiple Airlines
Mon, Feb 23 - Thu, Feb 26
China Airlines Logo
10:30 am - 6:00 pm
PUS
-
ONT
23h 30m
1 stop
China Airlines Logo
12:10 am - 9:30 am
ONT
-
PUS
17h 20m
1 stop
$786China Airlines
Tue, Apr 14 - Fri, Apr 17
China Airlines Logo
10:30 am - 6:00 pm
PUS
-
ONT
23h 30m
1 stop
China Airlines Logo
12:10 am - 7:00 pm
ONT
-
PUS
26h 50m
1 stop
$859China Airlines
Tue, Apr 14 - Mon, Apr 20
Japan Airlines Logo
8:00 am - 3:09 pm
GMP
-
ONT
23h 09m
2 stops
Japan Airlines Logo
6:00 am - 10:40 am
ONT
-
GMP
36h 40m
2 stops
$2,381Japan Airlines
Sat, May 23 - Fri, May 29

United Airlines flights from South Korea to Ontario

Our best United Airlines deals on South Korea to Ontario flight tickets
United Airlines
Mar 17
ICN5:00 pmIncheon Intl
16h 41m
1 stop
ONT5:41 pmOntario
Mar 31
ONT6:00 amOntario
17h 00m
1 stop
ICN3:00 pmIncheon Intl
$515
United Airlines
Feb 17
ICN6:00 pmIncheon Intl
19h 50m
2 stops
ONT8:50 pmOntario
Feb 26
ONT6:10 amOntario
17h 05m
1 stop
ICN4:15 pmIncheon Intl
$650
United Airlines
Mar 4
ICN6:00 pmIncheon Intl
16h 41m
1 stop
ONT5:41 pmOntario
Mar 11
ONT6:15 amOntario
17h 00m
1 stop
ICN3:15 pmIncheon Intl
$651

China Airlines flights from South Korea to Ontario

Our best China Airlines deals on South Korea to Ontario flight tickets
China Airlines
Apr 16
ICN12:45 pmIncheon Intl
21h 15m
1 stop
ONT6:00 pmOntario
Apr 20
ONT12:10 amOntario
26h 55m
1 stop
ICN7:05 pmIncheon Intl
$740
China Airlines
Apr 15
ICN8:05 pmIncheon Intl
37h 55m
1 stop
ONT6:00 pmOntario
Aug 11
ONT12:45 amOntario
26h 20m
1 stop
ICN7:05 pmIncheon Intl
$741
China Airlines
Apr 14
PUS10:30 amBusan Gimhae
23h 30m
1 stop
ONT6:00 pmOntario
Apr 17
ONT12:10 amOntario
17h 20m
1 stop
PUS9:30 amBusan Gimhae
$786

momondo Fare Finder

 
Customize your flight search to find flights from South Korea to Ontario 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 February 4, 2026.
Use the filters below to find and compare flights from South Korea to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

IncheonOntario

ICN - ONT

ICNONT

Incheon Intl

Tue 3/3

6:00 pm-5:41 pm

1 stop16h 41m

Ontario

Tue 3/10

6:15 am-3:15 pm

1 stop17h 00m

$508

IncheonOntario

ICN - ONT

ICNONT

Incheon Intl

Mon 2/16

6:00 pm-5:41 pm

1 stop16h 41m

Ontario

Thu 2/19

6:10 am-4:15 pm

1 stop17h 05m

$515

IncheonOntario

ICN - ONT

ICNONT

Incheon Intl

Sun 3/8

8:35 pm-11:08 am

1 stop30h 33m

Ontario

Sun 4/12

6:00 am-6:35 pm

1 stop20h 35m

$582

IncheonOntario

ICN - ONT

ICNONT

Incheon Intl

Sat 2/21

8:35 pm-11:32 pm

1 stop19h 57m

Ontario

Thu 2/26

6:14 am-6:35 pm

1 stop19h 21m

$584

IncheonOntario

ICN - ONT

ICNONT

Incheon Intl

Mon 2/23

8:35 pm-3:08 pm

1 stop35h 33m

Ontario

Sat 2/28

12:02 pm-6:35 pm

1 stop37h 33m

$595

IncheonOntario

ICN - ONT

ICNONT

Incheon Intl

Mon 2/23

8:35 pm-11:32 pm

1 stop19h 57m

Ontario

Sat 2/28

4:02 pm-6:35 pm

1 stop33h 33m

$598

IncheonOntario

ICN - ONT

ICNONT

Incheon Intl

Mon 2/23

8:35 pm-11:32 pm

1 stop19h 57m

Ontario

Thu 2/26

6:14 am-6:35 pm

1 stop19h 21m

$606

BusanOntario

PUS - ONT

PUSONT

Busan Gimhae

Tue 4/14

10:30 am-6:00 pm

1 stop23h 30m

Ontario

Fri 4/17

12:10 am-9:30 am

1 stop17h 20m

$786

BusanOntario

PUS - ONT

PUSONT

Busan Gimhae

Tue 4/14

10:30 am-6:00 pm

1 stop23h 30m

Ontario

Mon 4/20

12:10 am-7:00 pm

1 stop26h 50m

$859

SeoulOntario

GMP - ONT

GMPONT

Seoul Gimpo Intl

Sat 5/23

8:00 am-3:09 pm

2 stops23h 09m

Ontario

Fri 5/29

6:00 am-10:40 am

2 stops36h 40m

$2,381

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 South Korea 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 South Korea to Ontario?

United Airlines, EVA Air, and Japan Airlines are the most popular carriers operating from South Korea to Ontario

What airlines fly to Ontario?

AIR PREMIA, Asiana Airlines and Korean Air are the top three most popular airlines that fly to Ontario from South Korea according to our data. AIR PREMIA is the first choice among our users, with 53% of people opting to fly with this airline when traveling to Ontario. Keep in mind that there are 8 different airlines that fly to Ontario on a routine basis, so you have a few additional options to choose from.

Cheap South Korea to Ontario flight deals and tips

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

Fastest flight time

15h 12m

Direct flights

None
The fastest flight from South Korea to Ontario takes 15h 12m
There are no direct flights from South Korea to Ontario. There are no popular flight routes from South Korea to Ontario.
Search flight deals

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

    Prices for flights from South Korea to Ontario Airport refresh daily.

  • How old do you have to be to fly from South Korea 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 South Korea to Ontario Airport.

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

    The travel and health documents required for your trip to Ontario 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 Ontario Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Why use momondo?

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

It is quick and easy to find South Korea to Ontario flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Ontario that suits you.

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

Yes. All flights to Ontario from South Korea on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from South Korea to Ontario?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Ontario from South Korea.

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

If you are not ready to book a flight from South Korea 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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