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 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.

$499 Cheap Flights from South Korea to Ontario in 2026/27

Find the cheapest flights from South Korea to Los Angeles

Round-trip

One-way

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

Enter your travel dates to find the best prices.

4:50 pm - 3:22 pmICN Incheon Intl-ONT Ontario

14h 32m1 stop San Francisco

6:00 am - 4:15 pmONT Ontario-ICN Incheon Intl

18h 15m1 stop San Francisco

$861Lufthansa

Thu, Oct 15 - Wed, Oct 28

11:30 am - 12:18 pmICN Incheon Intl-ONT Ontario

16h 48m1 stop San Francisco

6:00 am - 4:15 pmONT Ontario-ICN Incheon Intl

18h 15m1 stop San Francisco

$865Lufthansa

Thu, Oct 15 - Wed, Oct 28

11:45 am - 12:29 pmICN Incheon Intl-ONT Ontario

16h 44m1 stop San Francisco

1:35 pm - 5:40 amONT Ontario-ICN Incheon Intl

23h 05m1 stop San Francisco

$867United Airlines

Thu, Oct 29 - Wed, Nov 11

6:00 pm - 3:19 pmICN Incheon Intl-ONT Ontario

14h 19m1 stop San Francisco

1:05 pm - 5:40 amONT Ontario-ICN Incheon Intl

23h 35m1 stop San Francisco

$871United Airlines

Mon, Dec 21 - Mon, Jan 4

12:45 pm - 10:53 pmICN Incheon Intl-ONT Ontario

27h 08m1 stop San Francisco

6:00 am - 4:15 pmONT Ontario-ICN Incheon Intl

17h 15m1 stop San Francisco

$872United Airlines

Fri, Dec 25 - Thu, Dec 31

11:30 am - 12:18 pmICN Incheon Intl-ONT Ontario

16h 48m1 stop San Francisco

6:00 am - 4:15 pmONT Ontario-ICN Incheon Intl

18h 15m1 stop San Francisco

$873Lufthansa

Thu, Oct 15 - Wed, Oct 28

4:50 pm - 3:22 pmICN Incheon Intl-ONT Ontario

14h 32m1 stop San Francisco

6:07 am - 3:00 pmONT Ontario-ICN Incheon Intl

16h 53m1 stop San Francisco

$874United Airlines

Thu, Oct 8 - Sun, Oct 11

6:00 pm - 3:33 pmICN Incheon Intl-ONT Ontario

14h 33m1 stop San Francisco

6:00 am - 4:15 pmONT Ontario-ICN Incheon Intl

17h 15m1 stop San Francisco

$875United Airlines

Wed, Nov 18 - Sun, Nov 22

4:50 pm - 5:36 pmICN Incheon Intl-ONT Ontario

16h 46m1 stop San Francisco

1:52 pm - 3:00 pmONT Ontario-ICN Incheon Intl

33h 08m1 stop San Francisco

$876United Airlines

Thu, Oct 8 - Sat, Oct 10

4:50 pm - 3:22 pmICN Incheon Intl-ONT Ontario

14h 32m1 stop San Francisco

6:00 am - 4:15 pmONT Ontario-ICN Incheon Intl

18h 15m1 stop San Francisco

$890Lufthansa

Thu, Oct 15 - Wed, Oct 28

Recent last minute flight deals from South Korea to Los Angeles

Enter your travel dates to find the best prices.

11:30 am - 12:18 pmICN Incheon Intl-ONT Ontario

16h 48m1 stop San Francisco

1:52 pm - 4:20 amONT Ontario-ICN Incheon Intl

22h 28m1 stop San Francisco

$867United Airlines

Fri, Oct 2 - Tue, Oct 6

4:50 pm - 12:46 pmICN Incheon Intl-ONT Ontario

35h 56m2 stops San Francisco Denver Intl

4:03 pm - 4:20 amONT Ontario-ICN Incheon Intl

20h 17m1 stop San Francisco

$871United Airlines

Thu, Oct 1 - Mon, Oct 5

11:30 am - 10:23 amICN Incheon Intl-ONT Ontario

14h 53m1 stop San Francisco

6:07 am - 3:00 pmONT Ontario-ICN Incheon Intl

16h 53m1 stop San Francisco

$872United Airlines

Tue, Sep 29 - Thu, Oct 1

4:50 pm - 3:22 pmICN Incheon Intl-ONT Ontario

14h 32m1 stop San Francisco

6:07 am - 3:00 pmONT Ontario-ICN Incheon Intl

16h 53m1 stop San Francisco

$874United Airlines

Fri, Oct 2 - Mon, Oct 5

4:50 pm - 3:22 pmICN Incheon Intl-ONT Ontario

14h 32m1 stop San Francisco

6:07 am - 3:00 pmONT Ontario-ICN Incheon Intl

16h 53m1 stop San Francisco

$876United Airlines

Thu, Oct 1 - Mon, Oct 5

4:50 pm - 8:58 pmICN Incheon Intl-ONT Ontario

20h 08m2 stops San Francisco Denver Intl

4:03 pm - 3:00 pmONT Ontario-ICN Incheon Intl

30h 57m1 stop San Francisco

$912United Airlines

Sat, Oct 3 - Sat, Oct 10

11:30 am - 8:58 pmICN Incheon Intl-ONT Ontario

25h 28m2 stops San Francisco Denver Intl

1:52 pm - 4:20 amONT Ontario-ICN Incheon Intl

22h 28m1 stop San Francisco

$920United Airlines

Sat, Oct 3 - Wed, Oct 7

4:50 pm - 5:36 pmICN Incheon Intl-ONT Ontario

16h 46m1 stop San Francisco

1:52 pm - 3:00 pmONT Ontario-ICN Incheon Intl

33h 08m1 stop San Francisco

$921United Airlines

Sun, Oct 4 - Sat, Oct 10

4:50 pm - 5:36 pmICN Incheon Intl-ONT Ontario

16h 46m1 stop San Francisco

6:07 am - 3:00 pmONT Ontario-ICN Incheon Intl

16h 53m1 stop San Francisco

$966United Airlines

Fri, Oct 2 - Thu, Oct 8

4:50 pm - 3:22 pmICN Incheon Intl-ONT Ontario

14h 32m1 stop San Francisco

4:03 pm - 3:00 pmONT Ontario-ICN Incheon Intl

30h 57m1 stop San Francisco

$969Asiana Airlines

Sun, Oct 4 - Sat, Oct 10

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Lufthansa flights from South Korea to Ontario

Our best Lufthansa deals on South Korea 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

$861

Lufthansa

Oct 15

ICN11:30 amIncheon Intl

16h 48m

1 stop

ONT12:18 pmOntario

Oct 28

ONT6:00 amOntario

18h 15m

1 stop

ICN4:15 pmIncheon Intl

$865

Lufthansa

Oct 15

ICN11:30 amIncheon Intl

16h 48m

1 stop

ONT12:18 pmOntario

Oct 28

ONT6:00 amOntario

18h 15m

1 stop

ICN4:15 pmIncheon Intl

$873

United Airlines flights from South Korea to Ontario

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

United Airlines

Oct 29

ICN11:45 amIncheon Intl

16h 44m

1 stop

ONT12:29 pmOntario

Nov 11

ONT1:35 pmOntario

23h 05m

1 stop

ICN5:40 amIncheon Intl

$867

United Airlines

Dec 21

ICN6:00 pmIncheon Intl

14h 19m

1 stop

ONT3:19 pmOntario

Jan 4

ONT1:05 pmOntario

23h 35m

1 stop

ICN5:40 amIncheon Intl

$871

United Airlines

Dec 25

ICN12:45 pmIncheon Intl

27h 08m

1 stop

ONT10:53 pmOntario

Dec 31

ONT6:00 amOntario

17h 15m

1 stop

ICN4:15 pmIncheon Intl

$872

Fly from

Fly to

Route

Depart

Return

Price

Cheapest 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

$861

IncheonOntario

ICN Incheon Intl - ONT Ontario

ICNONT

Incheon Intl

Thu 10/15

11:30 am-12:18 pm

1 stop16h 48m

Ontario

Wed 10/28

6:00 am-4:15 pm

1 stop18h 15m

$865

IncheonOntario

ICN Incheon Intl - ONT Ontario

ICNONT

Incheon Intl

Thu 10/29

11:45 am-12:29 pm

1 stop16h 44m

Ontario

Wed 11/11

1:35 pm-5:40 am

1 stop23h 05m

$867

IncheonOntario

ICN Incheon Intl - ONT Ontario

ICNONT

Incheon Intl

Mon 12/21

6:00 pm-3:19 pm

1 stop14h 19m

Ontario

Mon 1/4

1:05 pm-5:40 am

1 stop23h 35m

$871

IncheonOntario

ICN Incheon Intl - ONT Ontario

ICNONT

Incheon Intl

Fri 12/25

12:45 pm-10:53 pm

1 stop27h 08m

Ontario

Thu 12/31

6:00 am-4:15 pm

1 stop17h 15m

$872

IncheonOntario

ICN Incheon Intl - ONT Ontario

ICNONT

Incheon Intl

Thu 10/15

11:30 am-12:18 pm

1 stop16h 48m

Ontario

Wed 10/28

6:00 am-4:15 pm

1 stop18h 15m

$873

Quickest round-trip

IncheonOntario

ICN Incheon Intl - ONT Ontario

ICNONT

Incheon Intl

Thu 10/8

4:50 pm-3:22 pm

1 stop14h 32m

Ontario

Sun 10/11

6:07 am-3:00 pm

1 stop16h 53m

$874

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

6:00 am-4:15 pm

1 stop17h 15m

$875

IncheonOntario

ICN Incheon Intl - ONT Ontario

ICNONT

Incheon Intl

Thu 10/8

4:50 pm-5:36 pm

1 stop16h 46m

Ontario

Sat 10/10

1:52 pm-3:00 pm

1 stop33h 08m

$876

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

$890

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 is the most popular carrier operating from South Korea 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 South Korea according to our data. AIR PREMIA is the first choice among our users, with 55% 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

Best Price Found	$499
Fastest flight time	14h 02m
Direct flights	None

The best one-way flight to Ontario from South Korea in the past 72 hours is $499. The best round-trip flight deal from South Korea to Ontario found on momondo in the last 72 hours is $861.

The fastest flight from South Korea to Ontario takes 14h 02m

There are no direct flights from South Korea to Ontario. There are no popular flight routes from South Korea to Ontario.

Search flight deals

Frequently asked questions about flying from South Korea to 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.

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

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Cheap flights from South Korea to Los Angeles from $499

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 12/3. 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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Lufthansa flights from South Korea to Ontario

Our best Lufthansa deals on South Korea to Ontario flight tickets

United Airlines flights from South Korea to Ontario

Our best United 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

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What airlines fly to Ontario?

How long does it take to fly to Ontario?

Cheap South Korea to Ontario flight deals and tips

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Frequently asked questions about flying from South Korea to Ontario

Why use momondo?

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

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Fly your favorite airline to Los Angeles

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Los Angeles

List of cabin classes available on flights landing in Los Angeles. Availability may vary depending on flight origin and airline.

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