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$393+ Cheap flights from Ontario (ONT) to Seoul (SEL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/27. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — SEL
ene. 22 — ene. 291
mié. 1/22
mié. 1/29
1 adult, Economy
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Cheap flight deals from Ontario to Seoul

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Seoul (SEL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated enero 17, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$782
(Trip.com)

One-way from

$393
(Trip.com)

Popular in

December

Cheapest in

February

Average price

$1,393
Provider with most accurate pricing for Ontario-Seoul (SEL) flight deals.
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Provider most trusted by Cheapflights users for Ontario-Seoul (SEL) flights.
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From Ontario to Seoul (SEL)
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One-way flight from Ontario to Seoul (SEL)
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High demand for flights, 14% potential price rise
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Best time to find cheap flights, 6% potential price drop
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Average for round-trip flights in January 2025
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Find flight deals from Ontario to Seoul

Cheapest flights from Ontario to Seoul
Explore the most affordable flight options available from Ontario to Seoul. Find the lowest fares from popular airlines and budget airlines, with prices last updated on enero 17, 2025.

This Trip.com deal was found by Cheapflights users on 1/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 3/108:26 amONT - ICN
1 stop17h 14mMultiple Airlines
mié. 3/268:50 pmICN - ONT
2 stops26h 36mMultiple Airlines
Deal found 1/16$782
This Gotogate deal was found by Cheapflights users on 1/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 5/412:10 amONT - ICN
1 stop19h 05mChina Airlines
lun. 5/128:35 pmICN - ONT
1 stop37h 25mChina Airlines
Deal found 1/16$967
This Booking.com deal was found by Cheapflights users on 1/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 3/138:50 amONT - ICN
1 stop18h 35mHawaiian Airlines
lun. 3/319:25 pmICN - ONT
1 stop15h 30mHawaiian Airlines
Deal found 1/16$1,048
This ScholarTrip deal was found by Cheapflights users on 1/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure ScholarTrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 1/226:00 amONT - ICN
1 stop16h 55mKorean Air
jue. 2/64:10 pmICN - ONT
1 stop16h 15mKorean Air
Deal found 1/16$1,199
This Delta deal was found by Cheapflights users on 1/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 1/226:00 amONT - ICN
1 stop16h 55mDelta
mar. 2/114:10 pmICN - ONT
1 stop16h 15mDelta
Deal found 1/16$1,231
This United Airlines deal was found by Cheapflights users on 1/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 2/36:15 amONT - ICN
1 stop17h 00mUnited Airlines
mié. 2/196:00 pmICN - ONT
1 stop13h 29mUnited Airlines
Deal found 1/16$1,327
This Travelocity deal was found by Cheapflights users on 1/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 2/116:00 amONT - GMP
2 stops36h 20mMultiple Airlines
mar. 2/187:45 amGMP - ONT
2 stops30h 42mMultiple Airlines
Deal found 1/15$1,494
This Ovago deal was found by Cheapflights users on 1/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 3/16:00 amONT - GMP
2 stops35h 55mJapan Airlines
sáb. 3/87:50 amGMP - ONT
2 stops29h 27mJapan Airlines
Deal found 1/14$2,428

Find flights from Ontario to Seoul within your budget

Customize your flight search to find flights from Ontario to Seoul that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated enero 17, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

OntarioIncheon

ONT - ICN

ONTICN

Ontario

lun. 3/10

8:26 am-5:40 pm

1 stop17h 14m

Incheon Intl

mié. 3/26

8:50 pm-7:26 am

2 stops26h 36m

$782

OntarioIncheon

ONT - ICN

ONTICN

Ontario

mar. 4/15

12:10 am-7:35 pm

1 stop27h 25m

Incheon Intl

lun. 4/28

12:35 pm-6:00 pm

1 stop21h 25m

$987

OntarioIncheon

ONT - ICN

ONTICN

Ontario

jue. 3/13

8:50 am-7:25 pm

1 stop18h 35m

Incheon Intl

lun. 3/31

9:25 pm-8:55 pm

1 stop15h 30m

$1,048

OntarioIncheon

ONT - ICN

ONTICN

Ontario

mié. 1/22

6:00 am-3:55 pm

1 stop16h 55m

Incheon Intl

jue. 2/6

4:10 pm-3:25 pm

1 stop16h 15m

$1,199

OntarioIncheon

ONT - ICN

ONTICN

Ontario

mié. 1/22

6:00 am-3:55 pm

1 stop16h 55m

Incheon Intl

mar. 2/11

4:10 pm-3:25 pm

1 stop16h 15m

$1,231

OntarioIncheon

ONT - ICN

ONTICN

Ontario

lun. 2/3

6:15 am-4:15 pm

1 stop17h 00m

Incheon Intl

mié. 2/19

6:00 pm-2:29 pm

1 stop13h 29m

$1,327

OntarioIncheon

ONT - ICN

ONTICN

Ontario

vie. 2/21

11:59 pm-4:30 pm

1 stop23h 31m

Incheon Intl

sáb. 3/8

6:50 pm-10:00 pm

2 stops20h 10m

$1,387

OntarioSeoul

ONT - GMP

ONTGMP

Ontario

mar. 2/11

6:00 am-11:20 am

2 stops36h 20m

Seoul Gimpo Intl

mar. 2/18

7:45 am-9:27 pm

2 stops30h 42m

$1,494

OntarioIncheon

ONT - ICN

ONTICN

Ontario

mar. 4/15

6:00 am-5:35 pm

2 stops43h 35m

Incheon Intl

mié. 4/23

1:20 am-11:59 pm

2 stops38h 39m

$1,534

OntarioSeoul

ONT - GMP

ONTGMP

Ontario

sáb. 3/1

6:00 am-10:55 am

2 stops35h 55m

Seoul Gimpo Intl

sáb. 3/8

7:50 am-8:17 pm

2 stops29h 27m

$2,428

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/15

Showing 1-10 of 23 results
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Compare providers for flights from Ontario to Seoul

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Seoul in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Ontario-Seoul flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Seoul flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Seoul flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-Seoul flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-Seoul flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Ontario to Seoul

Have a flexible travel schedule? Discover the best time to fly to Seoul from Ontario with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Ontario to Seoul

Get recent, data-driven insights about flights from Ontario to Seoul including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Ontario to Seoul?

Currently, October is the cheapest month in which you can book a flight from Ontario to Seoul (average of $1,086). Flying from Ontario to Seoul in June is currently the most expensive (average of $1,723). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ONT to SEL?

Find hourly flight availability from Ontario to Seoul. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated enero 17, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 24% on flights from Ontario to Seoul by exploring options for tickets at noon.

Rainfall in Seoul by month

Plan your trip to Seoul by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Seoul ranges from 1.1 - 10.0 inches per month. July is typically the wettest month, when rainfall can reach 10.0 in. December is typically the driest time to visit Seoul when rainfall is around 1.1 in.

Temperature in Seoul by month

Plan your trip to Seoul by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Seoul, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 77.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

Reviews of airlines servicing Seoul

Get insights into the airlines that provide service to Seoul. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seoul. Reviews last updated enero 17, 2025.
Peruse reviews from past customers who have flown with Hawaiian Airlines and United Airlines from Ontario to Seoul to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.5
Very good
1,034 reviews

Comfort

8.3

Entertainment

8.2

Boarding

8.5

Food

8.1

Overall

8.5

Crew

8.7

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Korean Air
8.5
Very good
1,034 reviews
Korean Air
8.5
Very good
1,034 reviews

Comfort

8.3

Entertainment

8.2

Boarding

8.5

Food

8.1

Overall

8.5

Crew

8.7

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Japan Airlines
8.3
Very good
1,448 reviews
Korean Air
8.5
Very good
1,034 reviews

Comfort

8.3

Entertainment

8.2

Boarding

8.5

Food

8.1

Overall

8.5

Crew

8.7

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

China Airlines
8.2
Very good
737 reviews
Korean Air
8.5
Very good
1,034 reviews

Comfort

8.3

Entertainment

8.2

Boarding

8.5

Food

8.1

Overall

8.5

Crew

8.7

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Delta
8.0
Very good
8,511 reviews
Korean Air
8.5
Very good
1,034 reviews

Comfort

8.3

Entertainment

8.2

Boarding

8.5

Food

8.1

Overall

8.5

Crew

8.7

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Hawaiian Airlines
7.9
Good
2,320 reviews
Korean Air
8.5
Very good
1,034 reviews

Comfort

8.3

Entertainment

8.2

Boarding

8.5

Food

8.1

Overall

8.5

Crew

8.7

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Seoul. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Ontario to Seoul?

    Ontario (ONT), located 3.1 mi from the city center, is the airport you fly out of when you book flights from Ontario to Seoul. 2 airlines have flights from Ontario to Seoul on a regular basis. Booking flights from Ontario to Seoul should not be difficult; the airport handles an average of 0 outbound flights to Seoul per day.

  • What are the cheapest airlines flying from Ontario to Seoul round-trip?

    According to our current data, China Airlines ($987), Hawaiian Airlines ($1,048), and Korean Air ($1,199) offers the cheapest pricing from Ontario to Seoul. China Airlines is 29% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Ontario to Seoul one-way?

    The cheapest airlines for a one-way flight from Ontario to Seoul are Hawaiian Airlines ($508), China Airlines ($585), and Korean Air ($670).

  • Can I find deals for flights from Ontario to Seoul that include hotel bookings?

    Yes. In addition to deals on Ontario to Seoul flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Seoul?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Seoul.

  • Can I find deals for business class flights from Ontario to Seoul?

    Yes. Cheapflights offers flight deals from Ontario to Seoul by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Ontario to Seoul?

    Currently, October is the cheapest month in which you can book a flight from Ontario to Seoul (average of $1,086). Flying from Ontario to Seoul in June is currently the most expensive (average of $1,723). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Alternative routes for Ontario to Seoul

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Ontario to Seoul

Discover the top 2 airlines that operate flights from Ontario to Seoul. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated enero 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
China AirlinesCheapest$984Average$1,080FlexibilityNo cancel feeOn-time70%
Korean AirCheapest$1,111Average$1,197FlexibilityNo cancel feeOn-time81%
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