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 05m 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 many operators does momondo search for flights from South Korea to Ontario Airport?

As of October 2025, there is 1 operator available to choose from for flights from South Korea to Ontario Airport.

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.

$349 Cheap Flights from South Korea to Ontario in 2025/26

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6:00 pm - 8:58 pmICN-ONT

19h 58m2 stops

5:40 am - 5:40 amONT-ICN

31h 00m2 stops

$512United Airlines

Find Deal

Tue, Feb 10 - Mon, Feb 16

6:00 pm - 5:34 pmICN-ONT

16h 34m1 stop

6:00 am - 4:15 pmONT-ICN

17h 15m1 stop

$514United Airlines

Find Deal

Fri, Nov 21 - Tue, Jan 6

8:35 pm - 10:37 pmICN-ONT

19h 02m1 stop

11:30 am - 6:35 pmONT-ICN

38h 05m1 stop

$580Hawaiian Airlines

Find Deal

Sat, Feb 21 - Sat, Feb 28

8:35 pm - 10:37 pmICN-ONT

18h 02m1 stop

6:00 am - 6:35 pmONT-ICN

20h 35m1 stop

$586Alaska Airlines

Find Deal

Mon, Mar 16 - Sat, Mar 21

8:35 pm - 10:37 pmICN-ONT

18h 02m1 stop

6:00 am - 6:35 pmONT-ICN

20h 35m1 stop

$589Hawaiian Airlines

Find Deal

Mon, Mar 16 - Sat, Mar 21

8:35 pm - 10:37 pmICN-ONT

18h 02m1 stop

6:00 am - 6:35 pmONT-ICN

20h 35m1 stop

$590Alaska Airlines

Find Deal

Mon, Mar 16 - Sat, Mar 21

8:05 pm - 10:38 pmICN-ONT

19h 33m1 stop

6:45 am - 4:30 pmONT-ICN

16h 45m1 stop

$595Delta

Find Deal

Wed, Feb 11 - Sun, Feb 22

8:05 pm - 5:10 pmICN-ONT

14h 05m1 stop

6:45 am - 4:30 pmONT-ICN

16h 45m1 stop

$601Delta

Find Deal

Wed, Nov 5 - Mon, Nov 10

4:40 pm - 5:10 pmICN-ONT

16h 30m1 stop

6:00 am - 3:20 pmONT-ICN

17h 20m1 stop

$658Korean Air

Find Deal

Wed, Oct 15 - Wed, Oct 22

4:10 pm - 10:38 pmICN-ONT

23h 28m1 stop

6:45 am - 3:55 pmONT-ICN

16h 10m1 stop

$659Korean Air

Find Deal

Wed, Feb 25 - Mon, Mar 2

United Airlines flights from South Korea to Ontario

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

United Airlines

Feb 10

ICN6:00 pmIncheon Intl

19h 58m

2 stops

ONT8:58 pmOntario

Feb 16

ONT5:40 amOntario

31h 00m

2 stops

ICN5:40 amIncheon Intl

$512

Find similar

United Airlines

Nov 21

ICN6:00 pmIncheon Intl

16h 34m

1 stop

ONT5:34 pmOntario

Jan 6

ONT6:00 amOntario

17h 15m

1 stop

ICN4:15 pmIncheon Intl

$514

Find similar

United Airlines

Oct 28

ICN11:55 amIncheon Intl

16h 42m

1 stop

ONT12:37 pmOntario

Nov 4

ONT1:40 pmOntario

33h 35m

1 stop

ICN4:15 pmIncheon Intl

$515

Find similar

Hawaiian Airlines flights from South Korea to Ontario

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

Hawaiian Airlines

Feb 21

ICN8:35 pmIncheon Intl

19h 02m

1 stop

ONT10:37 pmOntario

Feb 28

ONT11:30 amOntario

38h 05m

1 stop

ICN6:35 pmIncheon Intl

$580

Find similar

Hawaiian Airlines

Mar 16

ICN8:35 pmIncheon Intl

18h 02m

1 stop

ONT10:37 pmOntario

Mar 21

ONT6:00 amOntario

20h 35m

1 stop

ICN6:35 pmIncheon Intl

$589

Find similar

Hawaiian Airlines

Jan 22

ICN8:35 pmIncheon Intl

31h 24m

1 stop

ONT10:59 amOntario

Jan 29

ONT11:53 amOntario

37h 42m

1 stop

ICN6:35 pmIncheon Intl

$651

Find similar

Fly from

Fly to

Route

Depart

Return

Price

IncheonOntario

ICN - ONT

ICNONT

Incheon Intl

Tue 2/10

6:00 pm-8:58 pm

2 stops19h 58m

Ontario

Mon 2/16

5:40 am-5:40 am

2 stops31h 00m

$512

IncheonOntario

ICN - ONT

ICNONT

Incheon Intl

Fri 11/21

6:00 pm-5:34 pm

1 stop16h 34m

Ontario

Tue 1/6

6:00 am-4:15 pm

1 stop17h 15m

$514

IncheonOntario

ICN - ONT

ICNONT

Incheon Intl

Sat 2/21

8:35 pm-10:37 pm

1 stop19h 02m

Ontario

Sat 2/28

11:30 am-6:35 pm

1 stop38h 05m

$580

IncheonOntario

ICN - ONT

ICNONT

Incheon Intl

Mon 3/16

8:35 pm-10:37 pm

1 stop18h 02m

Ontario

Sat 3/21

6:00 am-6:35 pm

1 stop20h 35m

$586

IncheonOntario

ICN - ONT

ICNONT

Incheon Intl

Mon 3/16

8:35 pm-10:37 pm

1 stop18h 02m

Ontario

Sat 3/21

6:00 am-6:35 pm

1 stop20h 35m

$589

IncheonOntario

ICN - ONT

ICNONT

Incheon Intl

Mon 3/16

8:35 pm-10:37 pm

1 stop18h 02m

Ontario

Sat 3/21

6:00 am-6:35 pm

1 stop20h 35m

$590

IncheonOntario

ICN - ONT

ICNONT

Incheon Intl

Wed 2/11

8:05 pm-10:38 pm

1 stop19h 33m

Ontario

Sun 2/22

6:45 am-4:30 pm

1 stop16h 45m

$595

IncheonOntario

ICN - ONT

ICNONT

Incheon Intl

Wed 11/5

8:05 pm-5:10 pm

1 stop14h 05m

Ontario

Mon 11/10

6:45 am-4:30 pm

1 stop16h 45m

$601

IncheonOntario

ICN - ONT

ICNONT

Incheon Intl

Wed 10/15

4:40 pm-5:10 pm

1 stop16h 30m

Ontario

Wed 10/22

6:00 am-3:20 pm

1 stop17h 20m

$658

IncheonOntario

ICN - ONT

ICNONT

Incheon Intl

Wed 2/25

4:10 pm-10:38 pm

1 stop23h 28m

Ontario

Mon 3/2

6:45 am-3:55 pm

1 stop16h 10m

$659

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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 Alaska 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 46% 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.

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

Direct flights	None

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 many operators does momondo search for flights from South Korea to Ontario Airport?
As of October 2025, there is 1 operator available to choose from for flights from South Korea to Ontario Airport.
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.

Best airlines flying from South Korea to Ontario

Compare and see reviews for airlines that fly from South Korea to Ontario with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $550	Free Cancellation	Rating 7.4 8,933 reviews		Search United Airlines flights

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.

An easier way to manage your Ontario trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Cheap flights from South Korea to Los Angeles from $349

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 10/31. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Find the cheapest flights from South Korea to Los Angeles

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United Airlines flights from South Korea to Ontario

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

Hawaiian Airlines flights from South Korea to Ontario

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

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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, China Airlines, and Alaska Airlines are the most popular carriers operating from South Korea to Ontario

What airlines fly to Ontario?

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 05m on average. Los Angeles is the most popular airport in Ontario.

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

Direct flights

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

How many operators does momondo search for flights from South Korea to Ontario Airport?

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

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

Best airlines flying from South Korea to Ontario

Compare and see reviews for airlines that fly from South Korea to Ontario with momondo

Why use momondo?

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

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

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

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

An easier way to manage your Ontario trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing California