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Incheon Intl

$393+ Cheap flights from Ontario (ONT) to Incheon Intl (ICN)

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 — ICN
Jan 21 — Jan 281
Tue 1/21
Tue 1/28
1 adult, Economy
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Cheap flight deals from Ontario to Incheon Intl

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Incheon Intl (ICN). 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 16, 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

May

Cheapest in

August

Average price

$1,442
Provider with most accurate pricing for Ontario-Incheon Intl flight deals.
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Provider most trusted by Cheapflights users for Ontario-Incheon Intl flights.
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From Ontario to Incheon Intl
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One-way flight from Ontario to Incheon Intl
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High demand for flights, 21% potential price rise
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Best time to find cheap flights, 5% 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 Incheon Intl

Cheapest flights from Ontario to Incheon Intl
Explore the most affordable flight options available from Ontario to Incheon Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 16, 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.
Mon 3/108:26 amONT - ICN
1 stop17h 14mMultiple Airlines
Wed 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.
Sun 5/412:10 amONT - ICN
1 stop19h 05mChina Airlines
Mon 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.
Thu 3/138:50 amONT - ICN
1 stop18h 35mHawaiian Airlines
Mon 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.
Wed 1/226:00 amONT - ICN
1 stop16h 55mKorean Air
Thu 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.
Wed 1/226:00 amONT - ICN
1 stop16h 55mDelta
Tue 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.
Mon 2/36:15 amONT - ICN
1 stop17h 00mUnited Airlines
Wed 2/196:00 pmICN - ONT
1 stop13h 29mUnited Airlines
Deal found 1/16$1,327

Find flights from Ontario to Incheon Intl within your budget

Customize your flight search to find flights from Ontario to Incheon Intl 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 16, 2025.

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Route

Depart

Return

Price

OntarioIncheon

ONT - ICN

ONTICN

Ontario

Mon 3/10

8:26 am-5:40 pm

1 stop17h 14m

Incheon Intl

Wed 3/26

8:50 pm-7:26 am

2 stops26h 36m

$782

OntarioIncheon

ONT - ICN

ONTICN

Ontario

Tue 4/15

12:10 am-7:35 pm

1 stop27h 25m

Incheon Intl

Mon 4/28

12:35 pm-6:00 pm

1 stop21h 25m

$987

OntarioIncheon

ONT - ICN

ONTICN

Ontario

Thu 3/13

8:50 am-7:25 pm

1 stop18h 35m

Incheon Intl

Mon 3/31

9:25 pm-8:55 pm

1 stop15h 30m

$1,048

OntarioIncheon

ONT - ICN

ONTICN

Ontario

Wed 1/22

6:00 am-3:55 pm

1 stop16h 55m

Incheon Intl

Thu 2/6

4:10 pm-3:25 pm

1 stop16h 15m

$1,199

OntarioIncheon

ONT - ICN

ONTICN

Ontario

Wed 1/22

6:00 am-3:55 pm

1 stop16h 55m

Incheon Intl

Tue 2/11

4:10 pm-3:25 pm

1 stop16h 15m

$1,231

OntarioIncheon

ONT - ICN

ONTICN

Ontario

Mon 2/3

6:15 am-4:15 pm

1 stop17h 00m

Incheon Intl

Wed 2/19

6:00 pm-2:29 pm

1 stop13h 29m

$1,327

OntarioIncheon

ONT - ICN

ONTICN

Ontario

Fri 2/21

11:59 pm-4:30 pm

1 stop23h 31m

Incheon Intl

Sat 3/8

6:50 pm-10:00 pm

2 stops20h 10m

$1,387

OntarioIncheon

ONT - ICN

ONTICN

Ontario

Tue 4/15

6:00 am-5:35 pm

2 stops43h 35m

Incheon Intl

Wed 4/23

1:20 am-11:59 pm

2 stops38h 39m

$1,534

OntarioIncheon

ONT - ICN

ONTICN

Ontario

Mon 1/27

6:45 am-8:30 pm

1 stop20h 45m

$393

OntarioIncheon

ONT - ICN

ONTICN

Ontario

Sun 3/9

8:25 am-7:25 pm

1 stop19h 00m

$508

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/15

Showing 1-10 of 19 results
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Compare providers for flights from Ontario to Incheon Intl

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 Incheon Intl in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star

*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-Incheon Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Incheon Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Incheon Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-Incheon Intl Airport 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-Incheon Intl Airport 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 Incheon Intl

Have a flexible travel schedule? Discover the best time to fly to Incheon Intl 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 Incheon Intl

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

What is the cheapest month to book a flight from Ontario to Incheon Intl Airport?

Currently, October is the cheapest month in which you can book a flight from Ontario to Incheon Intl Airport (average of $1,086). Flying from Ontario to Incheon Intl Airport 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 ICN?

Find hourly flight availability from Ontario to Incheon Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 16, 2025.

It’s typically best to fly out from Ontario to Incheon Intl Airport at noon. Doing so could potentially save you 17% on the flight price compared to flying in the morning, which is usually more expensive.

Rainfall in Incheon Intl by month

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

In terms of precipitation, rainfall in Incheon Intl Airport 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 Incheon Intl Airport when rainfall is around 0.8 in.

Temperature in Incheon Intl by month

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

If weather is an important factor for your trip to Incheon Intl Airport, 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 Incheon Intl

Get insights into the airlines that provide service to Incheon Intl. 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 Incheon Intl. Reviews last updated January 16, 2025.
Read through reviews of airlines operating flights from Ontario to Seoul, such as Hawaiian Airlines and United Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.5
Very good
1,034 reviews

Entertainment

8.2

Food

8.1

Overall

8.5

Comfort

8.3

Crew

8.7

Boarding

8.5

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

Entertainment

8.2

Food

8.1

Overall

8.5

Comfort

8.3

Crew

8.7

Boarding

8.5

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

Entertainment

8.2

Food

8.1

Overall

8.5

Comfort

8.3

Crew

8.7

Boarding

8.5

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

Entertainment

8.2

Food

8.1

Overall

8.5

Comfort

8.3

Crew

8.7

Boarding

8.5

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

Entertainment

8.2

Food

8.1

Overall

8.5

Comfort

8.3

Crew

8.7

Boarding

8.5

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.

Qatar Airways
7.5
Good
3,752 reviews
Korean Air
8.5
Very good
1,034 reviews

Entertainment

8.2

Food

8.1

Overall

8.5

Comfort

8.3

Crew

8.7

Boarding

8.5

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 Incheon Intl. 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 Incheon Intl?

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

  • What are the cheapest airlines flying from Ontario to Incheon Intl Airport 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 Incheon Intl Airport. These flights start at 21% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Ontario to Incheon Intl Airport one-way?

    $508 is the cheapest one-way deal found within the past few days, from Hawaiian Airlines. You may also be able to find cheap deals on China Airlines and Korean Air, with prices starting from $585 and $670, respectively.

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

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

  • How can I find direct flights from Ontario to Incheon Intl?

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

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

    Yes. Cheapflights offers flight deals from Ontario to Incheon Intl 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 Incheon Intl Airport?

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

See more FAQs

Traveling to a place near Ontario?

Book flights to Ontario if you plan to visit one of these locations
Seongnam
Suwon
Daejeon

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Alternative routes for Ontario to Incheon Intl

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 Incheon Intl

Discover the top 2 airlines that operate flights from Ontario to Incheon Intl. 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 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
China AirlinesCheapest$984Average$1,080FlexibilityNo cancel feeOn-time70%
Korean AirCheapest$1,111Average$1,197FlexibilityNo cancel feeOn-time81%
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