$475 Find Cheap Flights from Ontario to South Korea

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to South Korea departing on 9/8. 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
1 adult, Economy

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Best South Korea Flight Deals from Ontario

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Seoul
Incheon2 stops$791
Busan
Busan1 stop$1,031
Seoul
Incheon2 stops$791
Busan
Busan1 stop$1,031

Cheap Flights from Ontario to South Korea

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to South Korea that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Ontario to South Korea

Mon, Aug 25 - Mon, Sep 8
Alaska Airlines Logo
7:22 pm - 7:00 pmONT-ICN
31h 38m2 stops
Alaska Airlines Logo
9:25 pm - 9:26 amICN-ONT
28h 01m2 stops
$791Alaska Airlines
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Mon, Sep 1 - Mon, Sep 8
Alaska Airlines Logo
7:10 am - 7:00 pmONT-ICN
43h 50m2 stops
Alaska Airlines Logo
9:25 pm - 9:26 amICN-ONT
28h 01m2 stops
$813Alaska Airlines
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Sun, Aug 24 - Sun, Aug 31
 Logo
9:41 pm - 10:15 pmONT-ICN
56h 34m2 stops
 Logo
6:20 pm - 11:40 pmICN-ONT
21h 20m1 stop
Thu, Aug 28 - Fri, Sep 5
 Logo
9:41 pm - 8:30 pmONT-ICN
30h 49m1 stop
 Logo
6:20 pm - 11:38 pmICN-ONT
21h 18m1 stop
Wed, Aug 27 - Fri, Sep 12
China Airlines Logo
12:45 am - 7:35 pmONT-ICN
26h 50m1 stop
China Airlines Logo
12:35 pm - 6:40 pmICN-ONT
22h 05m1 stop
$991China Airlines
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Wed, Aug 27 - Fri, Sep 12
China Airlines Logo
12:45 am - 7:35 pmONT-ICN
26h 50m1 stop
China Airlines Logo
12:35 pm - 6:40 pmICN-ONT
22h 05m1 stop
$993China Airlines
Find Deal
Wed, Oct 8 - Mon, Oct 27
Korean Air Logo
6:45 am - 8:35 pmONT-PUS
21h 50m2 stops
Korean Air Logo
12:10 pm - 10:42 pmPUS-ONT
26h 32m2 stops
$1,626Korean Air
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Thu, Oct 16 - Sun, Oct 26
Korean Air Logo
6:45 am - 8:35 pmONT-TAE
21h 50m2 stops
Korean Air Logo
7:40 am - 5:17 pmTAE-ONT
25h 37m2 stops
$1,749Korean Air
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Wed, Jul 30 - Mon, Aug 4
Japan Airlines Logo
6:00 am - 9:50 pmONT-GMP
23h 50m2 stops
Japan Airlines Logo
7:55 am - 6:04 pmGMP-ONT
26h 09m2 stops
$2,051Japan Airlines
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Sun, Aug 31 - Fri, Sep 12
Japan Airlines Logo
6:00 am - 9:50 pmONT-GMP
23h 50m2 stops
Japan Airlines Logo
7:20 pm - 6:47 pmGMP-ONT
39h 27m2 stops
$4,582Japan Airlines
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KAYAK's insights & trends for Ontario to South Korea flights

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

What’s the cheapest day of the week to fly from Ontario to South Korea?

The average price of all round-trip flights from Ontario to South Korea clicked on KAYAK for each day over the last 12 months.

When flying from Ontario to South Korea, you should consider leaving on a Friday and avoid Saturdays if you are looking for the best rates. For your return to Ontario, you’ll find the best rates on Fridays and the most expensive ones on Wednesdays.


Good to know

Low seasonAugust
High seasonFebruary
Cheapest flight$475
Best time to beat the crowds with an average 38% drop in price.
Most popular time to fly and prices are also 5% lower on average.
Flight from Ontario to Seoul Incheon Airport

FAQs - booking South Korea flights

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

    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 from Ontario to South Korea.

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

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

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

    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 from Ontario to South Korea 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 from Ontario to South Korea?

    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 from Ontario to South Korea up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to South Korea?

    The cheapest time of day to fly to South Korea is generally at night, when round-trip flights cost $1,130 on average. The most expensive time of day to fly to South Korea is generally in the morning, which is peak travel time and where the average cost of a ticket is $1,480.

Reviews of the top 3 airlines serving from Ontario to South Korea

 
Need help choosing which airline to fly with from Ontario to South Korea? 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.
8.4
Korean AirOverall score based on 1105 reviews
8.5Boarding
8.7Crew
8.2Entertainment
8.3Comfort
8.1Food
Airline reviews

This was an amazing flight. The crew was great. The service was great. The food provided was great.

10.0 ExcellentJason, Jun 2025BKK - ICN
Read more Korean Air reviews

This was an amazing flight. The crew was great. The service was great. The food provided was great.

I was unable to select decent seats, and so I was stuck in the middle seat because it was selected for me

Korean air has a little bit more seating space than Asiana air.

There was a lot of partial tv shows but not enough to last the flight. The food was incredible! The crew were so helpful and patient. Lots more space than what I usually get on an international flight. Very comfortable!

Stingy on the drinks - 15 hour direct flight and could barely get attention for some water

Unfortunately, there has been a boarding and departure delay. However, as usual, the flight arrived earlier than the scheduled. There has been a turbulence in-between, it’s unavoidable. I couldn’t complain them.

Not many people, so you can lay down on two seats

The delay in Korea was a pain and set us back a day. I have to give big props to Korean Air for setting up a hotel with dinner and transportation to and from the hotel. I also needed assistance with a wheelchair and they did an outstanding job.

The food on this flight from NRT to ICN was average. The staff were very friendly, but the flight took about 60 minutes longer than it should have because the pilot was only flying at 330mph instead of 500-550. Not sure what the reason is for that, but it meant for a much longer flight.

Flight delayed going to Korea. No free WiFi. Other than that everything else is were good. I would love to fly with Korea airline again

Sat next to a woman who had her period. Blood was on her seat and on the arm rest between us. I ended up having period blood on my jacket and shoes. Very gross!

Better organization of boarding procedures. Terrible leadership guiding people to gates.

They need to improve on how the plane lands cause it was not smooth at all.

I did not like how the plane landed. It was not smooth.

Been flying with China Airline over years many times. Good experience with them, no issues.

China Airlines crews are very excellent doing their job. Very friendly and hardworking. I will always choose China Airlines over and over. Thank you all for making my flight comfortable. God bless to all the staff. :)

Most relaxing long distance flight I have been on. And I have flown on many.

Not great, will likely try to fly another or maybe I should have upgraded my ticket? Needed Air…

I don’t think I’ll be flying them again. Tight seats, no flowing air or air nozzles that you can turn air on you, for those who could have motion sickness this would be your worst nightmare. The pilot was great and experienced (which is what you want when flying 12 hours) overall I’m thankful knowledgeable pilots!

My ticket did not indication which group I was in for boarding; the gate attended help me

Everything was great. Only thing that could’ve made it better was buy on board options for hot food, but the snacks were decent. The flight attendants were great. I had no complaints. I was able to make it to my destination safely

Boarded plane and then delayed 1.5 hours while on the plane

Horrific. They missed my connecting flight to San Diego. I didn’t get there until Monday at 9am when I had a mandatory court settlement conference scheduled at 6am since we had parties on the east coast. This caused many issues. All because United apparently forgot to hold the doors open until my flight landed that only had a 10 minute delay. This was the last flight to Southern California. So I couldn’t even rent a car to finish the trip. United cannot be trusted when traveling on specific days and times since weather didn’t have anything to do with the delays.

Really good 😊 the woman at the gate entrance was a little rude checking in our carry-on but i dont think she worked for the airline, she worked for the airport at sacramento, other than that amazing.

it was so bad. I tried to board my flight from vancouver to saskatoon. And to my surprise they did not board me cause the flight was changed and no email was send to me. and on my boarding pass which i got from seattle says different flight. I did not knew anyone from Vancouver, air canada crew was rude, i asked for today flight but they were rude and i had early morning dental appointment in saskatoon. I was so much in pain and my whole day is wasted today. and i suffered alot. They did provide me hotel but they did not provide me any food. I am really really disappointed first time had so bad experience with air canada. I may think twice to book it again. If i can get any reply or any composition that would be great. Thanks

Very comfortable (upgraded to business class). The audio on my screen didn’t work, but I managed to play the audio through my phone while watching the screen.

The food was the worst I’ve had on any flight I’ve ever been on.

I was supposed to be on business class at first class from Denver back to Miami due to weather changes. I missed my connection and it’s put on a flight to Fort Lauderdale. Instead of honoring my business class/1st class ticket, they put me in coach, but there were two first class seats open. I think it’s absolutely disgusting that I paid for first class $1300 ticket and they put me in economy and they had to open seats available and I have still not been refunded the difference. I ended up having to eat a snack box instead of the meal I was supposed to get and did not get home till 2 AM so I think that’s a little pathetic that I had to live off crackers for dinner And my poor dog ate some cheese and salami. Oh yes, apparently when they switched me to the new flight they forgot to mention I had a service dog

Flight was late as pilot crew had to land at different airport in their previous flight. Passengers boarded and had to wait for pilots inside plane. Series of incomplete and unnecessary announcements by an annoying voice, rather than complete, informative announcements.

Breakfast was not loaded at SFO due to catering company change. Seems like a major airline at a major hub would have thought of something else or warned passengers to pick up food before boarding a 3 hour flight.

Everything you need to know for your flight from Ontario to South Korea

Information on your arrival and departure airports

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