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Find cheap flights from South Korea to Ontario from $330

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Ontario departing on 9/18. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Sun 6/2
Sun 6/9

Search hundreds of travel sites at once for deals on flights to Ontario

 
These are the airlines KAYAK users have selected most often from within our search results for flights to Ontario, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to Ontario, as well as popular online travel agencies
In the last 7 days travelers have searched 43,693,958 times on KAYAK, and here is why:

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Flights to Ontario - Travel Insights & Trends

Get data-powered insights and trends for flights to Ontario to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest day to fly to Ontario?

The average price of all flights to Ontario clicked on KAYAK for each day over the last 12 months.
Based on KAYAK data, the cheapest day to fly to Ontario is Wednesday where tickets can be as cheap as $996. On the other hand, the most expensive day to fly is Thursday, where prices are $1,292 on average.

What is the cheapest time of day to fly to Ontario?

The average price for all flights to Ontario depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.
The cheapest time of day to fly to Ontario is generally in the morning, when flights cost $938 on average. The most expensive time of day to fly to Ontario is generally in the morning, which is peak travel time and where the average cost of a ticket is $938.

How long is the flight to Ontario?

The duration of your flight to Ontario depends on your departure and arrival airports. Obviously any flights that include a layover will also be longer. The most popular routes to Ontario on KAYAK are from Incheon, which takes 11h 30m, Seoul, which takes 14h 05m, Busan, which takes 14h 25m, and Daegu, which takes 19h 05m.

How many direct flights to Ontario are there each day?

There are around 91 direct flights from within South Korea to Ontario every day. Most flights depart in the morning, with 5:00 pm the most common departure time and 44% of flights departing in the morning.

How many direct flights to Ontario are there each week?

Each week there are around 633 direct flights from within South Korea to Ontario. The most common day for departures is Sunday, with 16% of flights taking off on this day.

Good to know

Cheapest flight

$330
Flight from Seoul Incheon Airport to Ontario

FAQs - booking Ontario flights

  • How far is Ontario from central Ontario?

    Central Ontario is 3 miles away from Ontario.

  • What is the name of Ontario’s airport?

    There is only 1 airport in Ontario, called Ontario (ONT). It can also be referred to as Ontario or Ontario Intl.

  • How does KAYAK find such low prices on flights to Ontario?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights to Ontario.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to Ontario?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights to Ontario?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ontario with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to Ontario?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • Which airline offers the most flights to Ontario?

    Of the 8 airlines that fly to Ontario, Southwest offers the most flights, with around 216 per week, followed by Frontier with 112 flights per week.

See more FAQs

Top tips for finding cheap flights to Ontario

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Ontario flight deals.

Prefer to fly non-stop to Ontario?

Find which airlines fly direct to Ontario, which days they fly and book direct flights.

Nonstop departures

South Korea to Ontario

Monday

Aeromexico, Air Canada, Air France, +23 more

Aeromexico, Air Canada, +24 more

Tuesday

Aeromexico, Air Canada, Air France, +24 more

Aeromexico, Air Canada, +25 more

Wednesday

Aeromexico, Air Canada, Air France, +23 more

Aeromexico, Air Canada, +24 more

Thursday

Aeromexico, Air Canada, Air France, +24 more

Aeromexico, Air Canada, +25 more

Friday

Aeromexico, Air Canada, Air France, +22 more

Aeromexico, Air Canada, +23 more

Saturday

Aeromexico, Air Canada, Air France, +23 more

Aeromexico, Air Canada, +24 more

Sunday

Aeromexico, Air Canada, Air France, +24 more

Aeromexico, Air Canada, +25 more

See more direct flights

Nonstop returns

Ontario to South Korea

Monday

Aeromexico, Air Canada, Air France, +23 more

Aeromexico, Air Canada, +24 more

Tuesday

Aeromexico, Air Canada, Air France, +24 more

Aeromexico, Air Canada, +25 more

Wednesday

Aeromexico, Air Canada, Air France, +23 more

Aeromexico, Air Canada, +24 more

Thursday

Aeromexico, Air Canada, Air France, +24 more

Aeromexico, Air Canada, +25 more

Friday

Aeromexico, Air Canada, Air France, +22 more

Aeromexico, Air Canada, +23 more

Saturday

Aeromexico, Air Canada, Air France, +23 more

Aeromexico, Air Canada, +24 more

Sunday

Aeromexico, Air Canada, Air France, +24 more

Aeromexico, Air Canada, +25 more

See more direct flights
See more direct flights

Top airlines flying from South Korea to Ontario

 
See real verified KAYAK customer reviews for airlines flying to Ontario. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from South Korea to Ontario. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to Ontario? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.2
China AirlinesOverall score based on 945 reviews
8.6Crew
8.3Boarding
7.8Food
8.0Comfort
8.1Entertainment
Airline reviews

Very good , the weather was terrible, but i admired the professionality and politeness and care from the crew, and the excellent contition of the plane

10.0 Excellentfr Jonah, Apr 2024HKG - TPE
Read more about China Airlines reviews

Very good , the weather was terrible, but i admired the professionality and politeness and care from the crew, and the excellent contition of the plane

My flight to Los Angeles was canceled Had to book another flight and you charged me extra $500 Very bad experience

Comfort was left wanting due to such a long flight, made the wife and I wish we could upgrade the seats to Business class or First Class, but did not have that option. Food was good but had very limited options and I have a dietary restriction which was difficult for the staff to accommodate since everything provided came with cheese on it. (Cheese could potentially kill me) Did not have an option to inform the staff until we were already in the air about the restriction and was not provided another option before flight departed.

The plane was uncomfortable. I paid extra for more legroom but the seat was still uncomfortable. Other seats on the same exact row didn’t have to pay extra but still have extra legroom. I didn’t understand why I needed to pay $170 for. It was Iike China airline just wants to make money off their passengers. It was unfair.

They were helpful, considerate with asking us for standby preboarding with our infant, gave us toys and excellent service onboard. They were always on time, even early boarding once! All our luggage arrived intact, and they even brought our baby car seat to oversized for us. We love China Airlines!

Great flight, although I flew out of ONT and that is where my car is, lol

It felt like a new plane. Decent leg room in economy, food was fine, and the plane didn’t feel super dry and uncomfortable.

Free Wi-Fi could have been better in the Airport.

Ask flight attendant for water during flight and she was a little rude get the water.

Baggage made it successfully to destination despite short layover. Appreciate that.

My bag was lost with my medicine and I am very inconvenienced. I don’t know what happened, however I want you to do a better job on getting people’s bag back

Generally good but there wasn’t any staff available when my luggage didn’t appear at baggage claim in Fresno. It took about half an hour to locate a staff member to open up the locked room where it was being kept.

Do not like the feeling of being in the basic economy. Everyone should feel good no matter what.

Our original business class flight was cancelled so we not only downgraded but we were also spread out across the plane not sitting together in separate middle seats. My poor kids were scared and couldn’t see me on the flight and the crew wasn’t sensitive to the situation and what the airlines did to us. Very dissatisfied with United airlines.

The WiFi didn’t work and the seats are too close together. Very uncomfortable.

So so. Terrible aircraft choice for that leg of the flight.

Our seat tv didn’t work All the rest was perfect

delay several times and wait extra long to board. no entertainment service because there are problem for some rows. always encounter some delays for the last flight of the day.

On time every leg of the journey and exceptional staff at counter, gate, and on board. I haven’t travelled in US for a long time and was genuinely surprised how pleasant this was.

Meals were adequate but could be better. Lots of movies, podcasts, tv shows. We really enjoyed using our personal headsets highly recommended. 15 hrs flight great to travel at night.

Book cheap flights from South Korea to Ontario

Recent round-trip flight deals

 
These are the cheapest round-trip flights to Ontario found on KAYAK in the last 72 hours.
10/22Tue
2 stopsUnited Airlines
25h 02mICN-ONT
10/23Wed
2 stopsUnited Airlines
28h 40mONT-ICN
$577
10/1Tue
1 stopUnited Airlines
14h 28mICN-ONT
10/8Tue
1 stopUnited Airlines
15h 42mONT-ICN
$578
6/5Wed
2 stopsAmerican Airlines
20h 15mICN-ONT
6/16Sun
1 stopAmerican Airlines
23h 16mONT-ICN
$614
6/3Mon
1 stopAmerican Airlines
18h 43mICN-ONT
6/12Wed
1 stopAmerican Airlines
23h 16mONT-ICN
$668
9/10Tue
1 stopChina Airlines
22h 05mICN-ONT
9/20Fri
1 stopChina Airlines
27h 35mONT-ICN
$943
9/26Thu
1 stopChina Airlines
37h 15mICN-ONT
9/28Sat
1 stopChina Airlines
19h 00mONT-ICN
$945
6/3Mon
1 stopHawaiian Airlines
16h 20mICN-ONT
6/4Tue
1 stopHawaiian Airlines
17h 20mONT-ICN
$1,127
5/13Mon
1 stopHawaiian Airlines
16h 40mICN-ONT
5/25Sat
1 stopHawaiian Airlines
18h 30mONT-ICN
$1,135
9/3Tue
1 stop
22h 05mICN-ONT
9/7Sat
1 stop
17h 10mONT-ICN
$1,139
5/16Thu
2 stops
33h 20mICN-ONT
5/20Mon
2 stops
31h 05mONT-ICN
$1,217

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Recent one-way flight deals

 
Only flying one-way? Below are some of the best deals for one-way flights to Ontario found on KAYAK in the last 72 hours.
9/18Wed
2 stopsUnited Airlines
20h 12mICN-ONT
$330
5/8Wed
2 stopsUnited Airlines
20h 03mICN-ONT
$333
5/8Wed
1 stopAmerican Airlines
18h 43mICN-ONT
$375
6/3Mon
1 stopAmerican Airlines
18h 43mICN-ONT
$378
5/24Fri
1 stopChina Airlines
21h 30mICN-ONT
$603
10/28Mon
1 stopChina Airlines
21h 10mICN-ONT
$604
6/6Thu
2 stops
33h 20mICN-ONT
$635
9/4Wed
2 stops
33h 55mICN-ONT
$636
6/3Mon
1 stopHawaiian Airlines
16h 20mICN-ONT
$716
6/1Sat
1 stopHawaiian Airlines
16h 20mICN-ONT
$738

Search by stops

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Last minute flights to Ontario

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights to Ontario that are departing in the next 10 days.
5/5Sun
multi-stopUnited Airlines
14h 31mICN-ONT
7/7Sun
multi-stopUnited Airlines
28h 25mONT-ICN
$762
5/6Mon
multi-stopUnited Airlines
33h 11mICN-ONT
5/9Thu
multi-stopUnited Airlines
30h 20mONT-ICN
$786
5/4Sat
multi-stopAmerican Airlines
22h 32mICN-ONT
5/7Tue
multi-stopAmerican Airlines
23h 16mONT-ICN
$978
5/8Wed
multi-stopAmerican Airlines
18h 43mICN-ONT
5/11Sat
multi-stopAmerican Airlines
23h 16mONT-ICN
$1,051
5/7Tue
multi-stopChina Airlines
21h 30mICN-ONT
5/18Sat
multi-stopChina Airlines
27h 35mONT-ICN
$1,067
5/8Wed
multi-stopChina Airlines
21h 30mICN-ONT
5/18Sat
multi-stopChina Airlines
27h 35mONT-ICN
$1,094
5/8Wed
multi-stop
25h 15mICN-ONT
5/18Sat
multi-stop
31h 05mONT-ICN
$1,176
5/7Tue
multi-stop
33h 20mICN-ONT
5/18Sat
multi-stop
31h 05mONT-ICN
$1,180
5/7Tue
multi-stopKorean Air
14h 42mICN-ONT
5/14Tue
multi-stopKorean Air
17h 40mONT-ICN
$1,723
5/7Tue
multi-stopKorean Air
14h 42mICN-ONT
5/18Sat
multi-stopKorean Air
17h 40mONT-ICN
$2,095

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Flights to Ontario

Destination:

Ontario (ONT)United States

Return flight deals:

Ontario - South Korea

Cabin classes: