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$397+ Cheap flights from Ontario (ONT) to South Korea

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 1/26. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — ICN
Jan 26 — Feb 21
Sun 1/26
Sun 2/2
1 adult, Economy
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Cheap flight deals from Ontario to South Korea

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to South Korea (KR0). 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 January 21, 2025.

Round-trip from

$774
(Trip.com)

One-way from

$397
(Trip.com)
From Ontario to South Korea
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One-way flight from Ontario to South Korea
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Find flight deals from Ontario to South Korea

Cheapest flights from Ontario to South Korea
Explore the most affordable flight options available from Ontario to South Korea. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 21, 2025.

This Trip.com deal was found by Cheapflights users on 1/19. 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.
Mon 2/106:45 amONT - ICN
1 stop18h 10mMultiple Airlines
Fri 2/288:50 pmICN - ONT
2 stops44h 19mMultiple Airlines
Deal found 1/19$780
This Ticket deal was found by Cheapflights users on 1/19. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/249:45 amONT - ICN
1 stop40h 40mHawaiian Airlines
Wed 3/129:25 pmICN - ONT
1 stop15h 30mHawaiian Airlines
Deal found 1/19$869
This Gotogate deal was found by Cheapflights users on 1/19. 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.
Mon 3/3112:10 amONT - ICN
1 stop27h 25mChina Airlines
Wed 4/1612:35 pmICN - ONT
1 stop21h 25mChina Airlines
Deal found 1/19$980
This oojo deal was found by Cheapflights users on 1/20. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/911:45 pmONT - PUS
1 stop27h 00mChina Airlines
Wed 3/1211:55 amPUS - ONT
1 stop21h 55mChina Airlines
Deal found 1/20$1,039
This ScholarTrip deal was found by Cheapflights users on 1/19. 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.
Tue 1/216:00 amONT - ICN
1 stop16h 55mKorean Air
Tue 1/284:10 pmICN - ONT
1 stop16h 15mKorean Air
Deal found 1/19$1,199
This Delta deal was found by Cheapflights users on 1/18. 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.
Mon 1/206:00 amONT - ICN
1 stop16h 55mDelta
Tue 1/284:10 pmICN - ONT
1 stop23h 22mDelta
Deal found 1/18$1,231
This Japan Airlines deal was found by Cheapflights users on 1/19. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/296:00 amONT - GMP
2 stops36h 45mJapan Airlines
Wed 10/87:20 pmGMP - ONT
2 stops35h 52mJapan Airlines
Deal found 1/19$1,296
This Delta deal was found by Cheapflights users on 1/20. 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.
Thu 3/275:40 amONT - TAE
2 stops22h 05mDelta
Mon 4/147:05 amTAE - ONT
2 stops31h 35mDelta
Deal found 1/20$1,339
This Gurufare deal was found by Cheapflights users on 1/19. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/15:40 amONT - TAE
2 stops23h 00mKorean Air
Wed 4/307:05 amTAE - ONT
2 stops25h 31mKorean Air
Deal found 1/19$1,344
This KAYAK deal was found by Cheapflights users on 1/20. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/17:00 amONT - CJU
2 stops21h 30mKorean Air
Mon 9/2212:25 pmCJU - ONT
2 stops20h 57mKorean Air
Deal found 1/20$1,369
This KAYAK deal was found by Cheapflights users on 1/20. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/95:40 amONT - PUS
2 stops35h 25mKorean Air
Wed 3/1212:10 pmPUS - ONT
2 stops20h 32mKorean Air
Deal found 1/20$1,377
This Priceline deal was found by Cheapflights users on 1/20. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/95:40 amONT - PUS
2 stops21h 45mMultiple Airlines
Wed 3/1211:55 amPUS - ONT
1 stop21h 55mMultiple Airlines
Deal found 1/20$1,423

Find flights from Ontario to South Korea within your budget

Customize your flight search to find flights from Ontario to South Korea 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 January 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

OntarioIncheon

ONT - ICN

ONTICN

Ontario

Mon 2/10

6:45 am-5:55 pm

1 stop18h 10m

Incheon Intl

Wed 2/26

8:50 pm-7:26 am

2 stops27h 36m

$774

OntarioIncheon

ONT - ICN

ONTICN

Ontario

Sat 3/8

9:45 am-7:25 pm

1 stop40h 40m

Incheon Intl

Mon 3/17

9:25 pm-8:55 pm

1 stop15h 30m

$974

OntarioIncheon

ONT - ICN

ONTICN

Ontario

Wed 3/12

11:45 pm-7:15 pm

1 stop27h 30m

Incheon Intl

Mon 3/31

8:35 pm-6:00 pm

1 stop37h 25m

$988

OntarioBusan

ONT - PUS

ONTPUS

Ontario

Sun 3/9

11:45 pm-6:45 pm

1 stop27h 00m

Busan Gimhae

Wed 3/12

11:55 am-5:50 pm

1 stop21h 55m

$1,039

OntarioIncheon

ONT - ICN

ONTICN

Ontario

Tue 2/4

6:00 am-3:55 pm

1 stop16h 55m

Incheon Intl

Wed 2/12

4:10 pm-3:25 pm

1 stop16h 15m

$1,199

OntarioIncheon

ONT - ICN

ONTICN

Ontario

Mon 2/3

6:00 am-3:55 pm

1 stop16h 55m

Incheon Intl

Tue 3/11

8:05 pm-10:22 pm

1 stop18h 17m

$1,231

OntarioIncheon

ONT - ICN

ONTICN

Ontario

Thu 2/20

11:59 pm-4:45 pm

1 stop23h 46m

Incheon Intl

Thu 3/6

6:50 pm-10:00 pm

2 stops20h 10m

$1,331

OntarioDaegu

ONT - TAE

ONTTAE

Ontario

Thu 3/27

5:40 am-7:45 pm

2 stops22h 05m

Daegu

Mon 4/14

7:05 am-10:40 pm

2 stops31h 35m

$1,339

OntarioIncheon

ONT - ICN

ONTICN

Ontario

Tue 3/11

6:00 am-3:15 pm

1 stop17h 15m

Incheon Intl

Thu 3/27

11:45 am-9:54 am

1 stop14h 09m

$1,341

OntarioDaegu

ONT - TAE

ONTTAE

Ontario

Tue 4/1

5:40 am-8:40 pm

2 stops23h 00m

Daegu

Wed 4/30

7:05 am-4:36 pm

2 stops25h 31m

$1,344

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/19

Showing 1-10 of 36 results
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Best time to book a flight from Ontario to South Korea

Have a flexible travel schedule? Discover the best time to fly to South Korea 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 South Korea

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

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

Currently, October is the cheapest month in which you can book a flight from Ontario to South Korea (average of $1,086). Flying from Ontario to South Korea 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 KR?

Find hourly flight availability from Ontario to South Korea. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 21, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ontario to South Korea as you normally would.

Rainfall in South Korea by month

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

In terms of precipitation, rainfall in South Korea ranges from 0.8 - 10.2 inches per month. July is typically the wettest month, when rainfall can reach 10.2 in. January is typically the driest time to visit South Korea when rainfall is around 0.8 in.

Temperature in South Korea by month

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

If weather is an important factor for your trip to South Korea, 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 28.4 F).

Reviews of airlines servicing South Korea

Get insights into the airlines that provide service to South Korea. 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 South Korea. Reviews last updated January 21, 2025.
Get a feel of what it's like to fly with Hawaiian Airlines, China Airlines and Korean Air from Ontario to South Korea by reading reviews from past customers. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.5
Very good
1,039 reviews

Overall

8.5

Boarding

8.5

Crew

8.7

Food

8.1

Entertainment

8.2

Comfort

8.3

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
1,039 reviews
Korean Air
8.5
Very good
1,039 reviews

Overall

8.5

Boarding

8.5

Crew

8.7

Food

8.1

Entertainment

8.2

Comfort

8.3

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
1,449 reviews
Korean Air
8.5
Very good
1,039 reviews

Overall

8.5

Boarding

8.5

Crew

8.7

Food

8.1

Entertainment

8.2

Comfort

8.3

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
1,039 reviews

Overall

8.5

Boarding

8.5

Crew

8.7

Food

8.1

Entertainment

8.2

Comfort

8.3

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
8,521 reviews
Korean Air
8.5
Very good
1,039 reviews

Overall

8.5

Boarding

8.5

Crew

8.7

Food

8.1

Entertainment

8.2

Comfort

8.3

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
2,334 reviews
Korean Air
8.5
Very good
1,039 reviews

Overall

8.5

Boarding

8.5

Crew

8.7

Food

8.1

Entertainment

8.2

Comfort

8.3

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 South Korea. 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 South Korea?

    If you book a flight to South Korea from Ontario, you will be flying from Ontario, which is the city’s only airport. Ontario (ONT) is located 3.1 mi from the center of Ontario.

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

    The cheapest airlines for a one-way flight from Ontario to South Korea are Hawaiian Airlines ($530), China Airlines ($589), and Korean Air ($670).

  • What are the most popular routes from Ontario to South Korea?

    While some choose either Ontario - Seoul Gimpo Intl or Ontario - Busan Gimhae, Ontario - Incheon Intl is the most popular route from Ontario to South Korea.

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

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

  • How can I find direct flights from Ontario to South Korea?

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

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

    Yes. Cheapflights offers flight deals from Ontario to South Korea 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 South Korea?

    Currently, October is the cheapest month in which you can book a flight from Ontario to South Korea (average of $1,086). Flying from Ontario to South Korea 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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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 South Korea

Discover the top 2 airlines that operate flights from Ontario to South Korea. 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 January 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
China AirlinesCheapest$984Average$1,086FlexibilityNo cancel feeOn-time70%
Korean AirCheapest$1,111Average$1,197FlexibilityNo cancel feeOn-time81%
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