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ONT - SEL

$435 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 1/2. 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 46,646,933 times on KAYAK, and here is why:

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

 
These are the cheapest deals for flights from Ontario to Seoul currently on KAYAK along with options from the most popular airlines KAYAK users selected for this route. 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
7:47 pm - 8:30 pmONT-ICN
31h 43m1 stop
6:55 pm - 9:34 amICN-ONT
31h 39m1 stop
$851
Find Deal
Sun, Dec 29 - Wed, Feb 12
7:47 pm - 8:30 pmONT-ICN
31h 43m1 stop
6:55 pm - 9:34 amICN-ONT
31h 39m1 stop
$861
Find Deal
Thu, Jan 2 - Wed, Feb 12
11:59 pm - 4:45 pmONT-ICN
23h 46m1 stop
5:50 pm - 8:16 pmICN-ONT
18h 26m1 stop
$952American Airlines
Find Deal
Sun, Mar 2 - Wed, Mar 19
12:48 pm - 4:45 pmONT-ICN
34h 57m2 stops
6:50 pm - 10:00 pmICN-ONT
20h 10m1 stop
$957American Airlines
Find Deal
Mon, Jan 20 - Wed, Feb 19
9:45 am - 7:25 pmONT-ICN
40h 40m1 stop
9:25 pm - 9:50 pmICN-ONT
17h 25m1 stop
$960Hawaiian Airlines
Find Deal
Sat, Feb 15 - Wed, Feb 26
9:45 am - 7:25 pmONT-ICN
40h 40m1 stop
9:25 pm - 9:50 pmICN-ONT
17h 25m1 stop
$973Hawaiian Airlines
Find Deal
Mon, Feb 10 - Mon, Mar 3
6:00 am - 3:55 pmONT-ICN
16h 55m1 stop
4:40 pm - 5:14 pmICN-ONT
16h 34m1 stop
$1,069Korean Air
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Wed, Feb 5 - Wed, Apr 30
12:10 am - 7:45 pmONT-ICN
27h 35m1 stop
12:35 pm - 6:05 pmICN-ONT
21h 30m1 stop
$1,079China Airlines
Find Deal
Mon, May 12 - Tue, Jun 17
5:40 am - 4:15 pmONT-ICN
18h 35m1 stop
4:10 pm - 10:40 pmICN-ONT
22h 30m1 stop
$1,098Korean Air
Find Deal
Mon, Mar 10 - Wed, Mar 19
11:45 pm - 11:20 amONT-ICN
19h 35m1 stop
12:35 pm - 6:05 pmICN-ONT
21h 30m1 stop
$1,100China Airlines
Find Deal
Mon, Mar 24 - Tue, Apr 8

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 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 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 $925 on average. On the other hand, the most expensive months are December and June, where the average cost of tickets is $1,500 and $1,490 respectively.

How far in advance should I book a flight from Ontario to Seoul?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Ontario to Seoul, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Ontario to Seoul, you should book around 1 day before departure. For the absolute cheapest price, our data suggests you should book 180 days before departure.

Good to know

Low season

September

High season

March

Cheapest flight

$435
Best time to beat the crowds with an average 21% drop in price.
Most popular time to fly and prices are also 12% lower on average.
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 $435 for a one-way ticket and $851 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 776 reviews
7.8Food
8.0Entertainment
8.3Boarding
8.0Comfort
8.6Crew
Airline reviews

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.

4.0 OkayAnonymous, Sep 2024TPE - SEA
Read more China Airlines reviews

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

I would have liked to know how to order a special meal (for medical purposes) before the flight.

Staff very friendly and helpful Everything was clean and most important on time Unfortunately let down by the quality of the food Would be very happy to use them again

The flight who provided services on my row had some not-nice attitude and not smiling at all.

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

Book cheap flights from Ontario to Seoul

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Ontario to Seoul found on KAYAK in the last 72 hours.
1/2Thu
1 stop
31h 43mONT-ICN
$435
11/28Thu
1 stop
32h 38mONT-ICN
$442
2/5Wed
1 stopHawaiian Airlines
40h 40mONT-ICN
$510
2/15Sat
1 stopHawaiian Airlines
40h 40mONT-ICN
$520
4/14Mon
1 stopAmerican Airlines
23h 16mONT-ICN
$553
11/27Wed
2 stopsAmerican Airlines
31h 20mONT-ICN
$556
2/10Mon
1 stopKorean Air
16h 55mONT-ICN
$594
1/10Fri
1 stopKorean Air
17h 15mONT-ICN
$610
3/23Sun
1 stopChina Airlines
19h 35mONT-ICN
$705
2/6Thu
1 stopChina Airlines
27h 30mONT-ICN
$709

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Last minute flights from Ontario to Seoul

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 from Ontario to Seoul that are departing in the next 10 days.
11/25Mon
multi-stopKorean Air
17h 35mONT-ICN
11/27Wed
multi-stopKorean Air
17h 35mICN-ONT
$1,098
11/25Mon
multi-stopHawaiian Airlines
40h 20mONT-ICN
12/7Sat
multi-stopHawaiian Airlines
17h 45mICN-ONT
$1,192
11/25Mon
multi-stopChina Airlines
27h 30mONT-ICN
12/8Sun
multi-stopChina Airlines
21h 25mICN-ONT
$1,341
11/25Mon
multi-stopUnited Airlines
17h 15mONT-ICN
12/2Mon
multi-stopUnited Airlines
16h 43mICN-ONT
$1,437
11/25Mon
multi-stopUnited Airlines
17h 15mONT-ICN
11/27Wed
multi-stopUnited Airlines
13h 34mICN-ONT
$1,438
11/25Mon
multi-stopChina Airlines
27h 30mONT-ICN
1/16Thu
multi-stopChina Airlines
21h 25mICN-ONT
$1,458
11/24Sun
multi-stopQatar Airways
33h 22mONT-ICN
12/6Fri
multi-stopQatar Airways
34h 01mICN-ONT
$2,225
11/25Mon
multi-stopQatar Airways
37h 32mONT-ICN
12/6Fri
multi-stopQatar Airways
37h 44mICN-ONT
$2,366
11/25Mon
multi-stop
23h 20mONT-ICN
11/29Fri
multi-stop
17h 20mICN-ONT
$3,611
11/22Fri
multi-stop
23h 20mONT-ICN
11/26Tue
multi-stop
17h 20mICN-ONT
$6,269

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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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