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ONT - SEL

$392 Find Cheap Flights from Ontario to Seoul

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 Seoul departing on 1/13. 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

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These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Seoul, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Seoul, as well as popular online travel agencies
In the last 7 days travelers have searched 41,299,237 times on KAYAK, and here is why:

Save 23% or moreCompare multiple travel sites with one search.

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Filter your dealsChoose cabin class, free Wi-Fi and more.

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Cheap Flight Deals from Ontario to Seoul (ONT-SEL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to Seoul 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.

Recent round-trip flight deals from Ontario to Seoul

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Ontario to Seoul.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
6:45 am - 8:30 pmONT-ICN
20h 45m1 stop
6:55 pm - 11:31 pmICN-ONT
21h 36m1 stop
$706
Find Deal
Mon, Jan 27 - Fri, Jan 31
8:26 am - 8:30 pmONT-ICN
19h 04m1 stop
6:55 pm - 3:04 pmICN-ONT
36h 09m2 stops
$760
Find Deal
Mon, Mar 3 - Mon, Mar 17
11:59 pm - 4:45 pmONT-ICN
23h 46m1 stop
6:50 pm - 10:16 pmICN-ONT
20h 26m1 stop
$918American Airlines
Find Deal
Sun, Jan 26 - Mon, Feb 17
11:59 pm - 4:45 pmONT-ICN
23h 46m1 stop
6:50 pm - 10:16 pmICN-ONT
20h 26m1 stop
$927American Airlines
Find Deal
Sun, Feb 2 - Sun, Feb 9
9:45 am - 7:25 pmONT-ICN
40h 40m1 stop
9:25 pm - 9:50 pmICN-ONT
17h 25m1 stop
$1,024Hawaiian Airlines
Find Deal
Wed, Feb 5 - Fri, Mar 7
9:45 am - 7:25 pmONT-ICN
40h 40m1 stop
9:25 pm - 8:55 pmICN-ONT
15h 30m1 stop
$1,038Hawaiian Airlines
Find Deal
Sat, Feb 22 - Mon, Mar 10
12:10 am - 11:15 amONT-ICN
19h 05m1 stop
12:35 pm - 6:00 pmICN-ONT
21h 25m1 stop
$1,045China Airlines
Find Deal
Tue, Apr 8 - Tue, Apr 15
12:10 am - 11:15 amONT-ICN
19h 05m1 stop
12:35 pm - 6:00 pmICN-ONT
21h 25m1 stop
$1,054China Airlines
Find Deal
Tue, Apr 8 - Wed, Apr 23
6:00 am - 3:55 pmONT-ICN
16h 55m1 stop
4:10 pm - 3:25 pmICN-ONT
16h 15m1 stop
$1,111Korean Air
Find Deal
Thu, Jan 30 - Thu, Feb 6
6:00 am - 4:15 pmONT-ICN
17h 15m1 stop
4:10 pm - 3:25 pmICN-ONT
16h 15m1 stop
$1,132Korean Air
Find Deal
Thu, Jan 16 - Mon, Jan 20

Flights from Ontario to Seoul - Travel Insights & Trends

Get data-powered insights and trends into flights from Ontario to Seoul 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 Seoul?

The average price of all round-trip flights from Ontario to Seoul clicked on KAYAK for each day over the last 12 months.
If your flying dates are flexible, you should consider flying to Seoul on a Friday, as we generally find the cheapest rates on that day for this route. On the other hand, Saturday is the most expensive day to fly from Ontario to Seoul. For your return ticket, we recommend flying on a Saturday and avoiding Wednesdays for the best deals.

What is the cheapest month to fly from Ontario to Seoul?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Ontario to Seoul, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Ontario to Seoul is November, where tickets cost $890 (return) on average. On the other hand, the most expensive months are June and December, where the average cost of round-trip tickets is $1,482 and $1,447 respectively.

Good to know

Low season

February

High season

January

Cheapest flight

$392
Best time to beat the crowds with an average 30% drop in price.
Most popular time to fly with an average 3% increase in price.
Flight from Ontario to Seoul Incheon Airport

When to book flights from Ontario to Seoul

Are your dates flexible? Find out the best times to travel from Ontario to Seoul based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Ontario to Seoul

  • What is the cheapest flight from Ontario to Seoul?

    In the last 3 days, the lowest price for a flight from Ontario to Seoul was $392 for a one-way ticket and $706 for a round-trip.

  • Do I need a passport to fly between Ontario and Seoul?

    Yes, you’ll need a passport to travel to Seoul from Ontario.

  • Which airports will I be using when flying from Ontario to Seoul?

    When flying out of Ontario you will be using Ontario. You will be landing at one of these airports: Seoul Gimpo Intl or Incheon Intl.

  • Which aircraft models fly most regularly from Ontario to Seoul?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Ontario to Seoul?

    oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between Ontario and Seoul, with SkyTeam being the most commonly used for this route.

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

    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 Seoul.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seoul from 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 from Ontario to Seoul?

    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 Seoul with an airline and back to Ontario with another airline.

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

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

See more FAQs

Top airline flying from Ontario to Seoul

 
See real verified KAYAK customer reviews for airlines flying from Ontario to Seoul. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Ontario to Seoul? 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 743 reviews
8.5Crew
7.8Food
8.0Comfort
8.3Boarding
8.0Entertainment
Airline reviews

When I booked a premium economy ticket. I then had to pay $100+ to book my seat.

8.0 ExcellentSuzanne, Dec 2024SGN - TPE
Read more China Airlines reviews

When I booked a premium economy ticket. I then had to pay $100+ to book my seat.

Boarding could have been a little bit better but other than that it was a pretty good experience. I think because of the stowaway to Paris France recently they are being extra diligent about boarding passes at the gate. But they boarded the back of the plane first, and that's something I really think needs to start in the USA.

Didn't like on this return inbound flights (from Hong Kong to Vancouver) Outbound to the Hong Kong was good.

I did not take the flight, tried to cancel it right after I booked it, but was unable to reach anyone. I blame Kayak for this situation because they sent the booking through another company and I was unable to get anyone to talk to me about the situation. I had to just take the hit and pay for another flight through Cathay Pacific, which was wonderful. I will never use Kayak again. (I bet they don’t post this review!) I’ll just post about them on social media sites. I don’t want anyone to have to go through the hassle and expense I dealt with.

Airline itself is great. While food was being taken off of my tray my beer spilled which was a total accident and I wasn’t upset about that, what was frustrating was I had to ask for towels to clean up and wipe my leg. It would have been left as is if I hadn’t.

Bars and restaurants in Taipei close early. The lounge isn’t very good, but better than the public areas.

The food was the only thing that could have made the experience even better. Everything was stellar but the food. The staff was superb. I’ve been flying with ANA for years as my go-to and I think I may have found my new favorite. 😍

Unable to set seat assignment. Got a call from presumably “China airlines representative” but was asking for an exorbitant amount for the seat assignment. Was traveling as a family end up being assigned to different seats as a result. Will never use underpricer again.

Not many selections for entertainment. Bulk head seats are no longer available with out fee at the counter. That’s pretty lame.

All of the staff were very helpful, polite I was very satisfied with China Airlines The food was normal for airlines but I’m sure they could do better

Everything you need to know for your flight from Ontario to Seoul

Information on your arrival and departure airports

Ontario (ONT)

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