How long does it take to fly to Ontario?

Average flight duration from South Korea to Ontario depends on which airport you fly into and out of. Flying from Incheon to Los Angeles is 11h on average, while flying from Seoul to Los Angeles is 14h 45m on average. Los Angeles is the most popular airport in Ontario.

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.

$417 Cheap Flights from South Korea to Ontario in 2025/26

1 adult

0 bags

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from South Korea to Los Angeles

Round-trip

One-way

Last minute

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

Enter your travel dates to find the best prices.

6:00 pm - 10:41 pm

ICN

ONT

21h 41m1 stop

6:39 pm - 5:40 am

ONT

ICN

18h 01m1 stop

$518United Airlines

Fri, Dec 26 - Sat, Jan 3

6:00 pm - 8:58 pm

ICN

ONT

19h 58m2 stops

6:00 am - 4:15 pm

ONT

ICN

17h 15m1 stop

$526United Airlines

Thu, Jan 22 - Fri, Jan 30

8:35 pm - 10:38 pm

ICN

ONT

18h 03m1 stop

6:00 am - 6:35 pm

ONT

ICN

20h 35m1 stop

$581Alaska Airlines

Fri, May 8 - Fri, May 15

8:35 pm - 2:33 pm

ICN

ONT

33h 58m1 stop

7:20 pm - 6:35 pm

ONT

ICN

31h 15m1 stop

$582Alaska Airlines

Fri, May 8 - Sat, May 16

8:35 pm - 11:32 pm

ICN

ONT

18h 57m1 stop

6:14 am - 6:35 pm

ONT

ICN

20h 21m1 stop

$583Multiple Airlines

Sun, Mar 8 - Sun, Mar 15

8:35 pm - 11:32 pm

ICN

ONT

19h 57m1 stop

6:00 am - 6:35 pm

ONT

ICN

20h 35m1 stop

$584Multiple Airlines

Sat, Mar 7 - Wed, Mar 18

10:25 am - 5:08 pm

PUS

ONT

23h 43m2 stops

6:00 am - 8:45 pm

ONT

PUS

21h 45m2 stops

$843Delta

Tue, Dec 23 - Thu, Jan 1

12:00 pm - 5:08 pm

PUS

ONT

22h 08m2 stops

6:00 am - 8:45 pm

ONT

PUS

21h 45m2 stops

$894Delta

Sun, Dec 21 - Thu, Jan 1

7:50 pm - 4:50 pm

PUS

ONT

38h 00m1 stop

10:50 pm - 10:50 am

ONT

PUS

19h 00m1 stop

$1,108China Airlines

Tue, Dec 23 - Mon, Dec 29

11:50 am - 4:50 pm

PUS

ONT

22h 00m1 stop

10:50 pm - 10:50 am

ONT

PUS

19h 00m1 stop

$1,134China Airlines

Tue, Dec 23 - Sun, Dec 28

China Airlines flights from South Korea to Ontario

Our best China Airlines deals on South Korea to Ontario flight tickets

China Airlines

Jan 24

PUS11:50 amBusan Gimhae

22h 00m

1 stop

ONT4:50 pmOntario

Mar 21

ONT11:50 pmOntario

27h 00m

1 stop

PUS6:50 pmBusan Gimhae

$1,112

Find similar

China Airlines

Jan 26

PUS11:50 amBusan Gimhae

22h 00m

1 stop

ONT4:50 pmOntario

Mar 23

ONT11:50 pmOntario

27h 00m

1 stop

PUS6:50 pmBusan Gimhae

$1,155

Find similar

China Airlines

Dec 15

PUS7:50 pmBusan Gimhae

38h 00m

1 stop

ONT4:50 pmOntario

Dec 30

ONT10:50 pmOntario

27h 00m

1 stop

PUS6:50 pmBusan Gimhae

$2,114

Find similar

United Airlines flights from South Korea to Ontario

Our best United Airlines deals on South Korea to Ontario flight tickets

United Airlines

Dec 26

ICN12:45 pmIncheon Intl

26h 56m

1 stop

ONT10:41 pmOntario

Jan 1

ONT8:11 amOntario

28h 29m

1 stop

ICN5:40 amIncheon Intl

$518

Find similar

United Airlines

Jan 22

ICN6:00 pmIncheon Intl

19h 58m

2 stops

ONT8:58 pmOntario

Jan 30

ONT6:00 amOntario

17h 15m

1 stop

ICN4:15 pmIncheon Intl

$526

Find similar

United Airlines

Jan 16

ICN6:00 pmIncheon Intl

35h 47m

2 stops

ONT12:47 pmOntario

Jan 26

ONT6:00 amOntario

17h 15m

1 stop

ICN4:15 pmIncheon Intl

$527

Find similar

Fly from

Fly to

Route

Depart

Return

Price

IncheonOntario

ICN - ONT

ICNONT

Incheon Intl

Fri 12/26

6:00 pm-10:41 pm

1 stop21h 41m

Ontario

Sat 1/3

6:39 pm-5:40 am

1 stop18h 01m

$518

IncheonOntario

ICN - ONT

ICNONT

Incheon Intl

Thu 1/22

6:00 pm-8:58 pm

2 stops19h 58m

Ontario

Fri 1/30

6:00 am-4:15 pm

1 stop17h 15m

$526

IncheonOntario

ICN - ONT

ICNONT

Incheon Intl

Fri 5/8

8:35 pm-10:38 pm

1 stop18h 03m

Ontario

Fri 5/15

6:00 am-6:35 pm

1 stop20h 35m

$581

IncheonOntario

ICN - ONT

ICNONT

Incheon Intl

Fri 5/8

8:35 pm-2:33 pm

1 stop33h 58m

Ontario

Sat 5/16

7:20 pm-6:35 pm

1 stop31h 15m

$582

IncheonOntario

ICN - ONT

ICNONT

Incheon Intl

Sun 3/8

8:35 pm-11:32 pm

1 stop18h 57m

Ontario

Sun 3/15

6:14 am-6:35 pm

1 stop20h 21m

$583

IncheonOntario

ICN - ONT

ICNONT

Incheon Intl

Sat 3/7

8:35 pm-11:32 pm

1 stop19h 57m

Ontario

Wed 3/18

6:00 am-6:35 pm

1 stop20h 35m

$584

BusanOntario

PUS - ONT

PUSONT

Busan Gimhae

Tue 12/23

10:25 am-5:08 pm

2 stops23h 43m

Ontario

Thu 1/1

6:00 am-8:45 pm

2 stops21h 45m

$843

BusanOntario

PUS - ONT

PUSONT

Busan Gimhae

Sun 12/21

12:00 pm-5:08 pm

2 stops22h 08m

Ontario

Thu 1/1

6:00 am-8:45 pm

2 stops21h 45m

$894

BusanOntario

PUS - ONT

PUSONT

Busan Gimhae

Tue 12/23

7:50 pm-4:50 pm

1 stop38h 00m

Ontario

Mon 12/29

10:50 pm-10:50 am

1 stop19h 00m

$1,108

BusanOntario

PUS - ONT

PUSONT

Busan Gimhae

Tue 12/23

11:50 am-4:50 pm

1 stop22h 00m

Ontario

Sun 12/28

10:50 pm-10:50 am

1 stop19h 00m

$1,134

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Airlines

Other information

What is the cheapest airline that flies from South Korea to Ontario?

United Airlines, China Airlines, 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 50% 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	14h 16m
Direct flights	None

The fastest flight from South Korea to Ontario takes 14h 16m

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.