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Incheon Intl

$409+ 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 4/6. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — ICN
Feb 26 — Mar 51
Wed 2/26
Wed 3/5
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 February 21, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$884
(Trip.com)

One-way from

$409
(Trip.com)

Popular in

June

Cheapest in

August

Average price

$1,199
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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Highest demand for flights based on searches. 17% potential increase in price ($262 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($39 potential savings vs. average RT price).
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Average for round-trip flights in February 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 February 21, 2025.

This Trip.com deal was found by Cheapflights users on 2/20. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/38:26 amONT - ICN
1 stop19h 04mMultiple Airlines
Wed 3/126:55 pmICN - ONT
2 stops28h 31mMultiple Airlines
Deal found 2/20$884
This oojo deal was found by Cheapflights users on 2/21. 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.
Mon 3/310:45 pmONT - ICN
1 stop27h 30mChina Airlines
Mon 5/512:35 pmICN - ONT
1 stop21h 25mChina Airlines
Deal found 2/21$991
This Hawaiian Airlines deal was found by Cheapflights users on 2/20. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/39:45 amONT - ICN
1 stop40h 40mHawaiian Airlines
Fri 3/79:25 pmICN - ONT
1 stop17h 25mHawaiian Airlines
Deal found 2/20$1,024
This WestJet deal was found by Cheapflights users on 2/20. 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 WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/811:42 amONT - ICN
2 stops39h 03mWestJet
Sun 6/88:45 pmICN - ONT
2 stops36h 37mWestJet
Deal found 2/20$1,314
This ScholarTrip deal was found by Cheapflights users on 2/20. 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 ScholarTrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/246:00 amONT - ICN
1 stop16h 55mKorean Air
Mon 3/244:10 pmICN - ONT
1 stop16h 32mKorean Air
Deal found 2/20$1,336
This Delta deal was found by Cheapflights users on 2/20. 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.
Tue 4/15:40 amONT - ICN
1 stop19h 00mDelta
Tue 4/227:20 pmICN - ONT
1 stop19h 22mDelta
Deal found 2/20$1,376

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 February 21, 2025.

Fly from

Ontario

Fly to

Incheon Intl

Route

Depart

Return

Price

OntarioIncheon

ONT - ICN

ONTICN

Ontario

Mon 3/3

8:26 am-8:30 pm

1 stop19h 04m

Incheon Intl

Wed 3/12

6:55 pm-7:26 am

2 stops28h 31m

$884

OntarioIncheon

ONT - ICN

ONTICN

Ontario

Mon 3/3

10:45 pm-7:15 pm

1 stop27h 30m

Incheon Intl

Mon 5/5

12:35 pm-6:00 pm

1 stop21h 25m

$991

OntarioIncheon

ONT - ICN

ONTICN

Ontario

Mon 3/3

9:45 am-7:25 pm

1 stop40h 40m

Incheon Intl

Fri 3/7

9:25 pm-9:50 pm

1 stop17h 25m

$1,024

OntarioIncheon

ONT - ICN

ONTICN

Ontario

Tue 4/8

11:42 am-6:45 pm

2 stops39h 03m

Incheon Intl

Sun 6/8

8:45 pm-5:22 pm

2 stops36h 37m

$1,314

OntarioIncheon

ONT - ICN

ONTICN

Ontario

Thu 4/10

5:40 am-4:30 pm

1 stop18h 50m

Incheon Intl

Mon 4/21

4:40 pm-4:43 pm

1 stop16h 03m

$1,361

OntarioIncheon

ONT - ICN

ONTICN

Ontario

Tue 4/1

5:40 am-4:40 pm

1 stop19h 00m

Incheon Intl

Tue 4/22

7:20 pm-10:42 pm

1 stop19h 22m

$1,376

OntarioIncheon

ONT - ICN

ONTICN

Ontario

Sun 4/6

8:15 am-7:50 pm

1 stop19h 35m

$409

OntarioIncheon

ONT - ICN

ONTICN

Ontario

Tue 3/11

8:50 am-7:25 pm

1 stop18h 35m

$546

OntarioIncheon

ONT - ICN

ONTICN

Ontario

Tue 4/22

11:45 am-6:45 pm

2 stops39h 00m

$581

OntarioIncheon

ONT - ICN

ONTICN

Ontario

Tue 3/18

11:45 pm-7:15 pm

1 stop27h 30m

$585

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/19

Showing 1-10 of 18 results
1
2

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 February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*1 star
CheapfaremartPrice Accuracy-Trust 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-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, February is the cheapest month in which you can book a flight from Ontario to Incheon Intl Airport (average of $1,036). Flying from Ontario to Incheon Intl Airport in June is currently the most expensive (average of $1,697). 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 February 21, 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 February 21, 2025.
Read through reviews of airlines operating flights from Ontario to Seoul, such as Korean Air, China Airlines and Delta. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,037 reviews

Overall

8.4

Crew

8.7

Entertainment

8.2

Boarding

8.5

Food

8.1

Comfort

8.3

Reviews

1 / 20

10.0
Excellent

Anonymous,Dec 2024

DFW - ICN

It was a great experience in all aspects including passengers are respectful to each other. I will consider to use Korean Air again.

Korean Air
8.4
Very good
1,037 reviews
Korean Air
8.4
Very good
1,037 reviews

Overall

8.4

Crew

8.7

Entertainment

8.2

Boarding

8.5

Food

8.1

Comfort

8.3

Reviews

1 / 20

10.0
Excellent

Anonymous,Dec 2024

DFW - ICN

It was a great experience in all aspects including passengers are respectful to each other. I will consider to use Korean Air again.

China Airlines
8.2
Very good
727 reviews
Korean Air
8.4
Very good
1,037 reviews

Overall

8.4

Crew

8.7

Entertainment

8.2

Boarding

8.5

Food

8.1

Comfort

8.3

Reviews

1 / 20

10.0
Excellent

Anonymous,Dec 2024

DFW - ICN

It was a great experience in all aspects including passengers are respectful to each other. I will consider to use Korean Air again.

Delta
8.0
Very good
8,217 reviews
Korean Air
8.4
Very good
1,037 reviews

Overall

8.4

Crew

8.7

Entertainment

8.2

Boarding

8.5

Food

8.1

Comfort

8.3

Reviews

1 / 20

10.0
Excellent

Anonymous,Dec 2024

DFW - ICN

It was a great experience in all aspects including passengers are respectful to each other. I will consider to use Korean Air again.

Hawaiian Airlines
7.9
Good
2,317 reviews
Korean Air
8.4
Very good
1,037 reviews

Overall

8.4

Crew

8.7

Entertainment

8.2

Boarding

8.5

Food

8.1

Comfort

8.3

Reviews

1 / 20

10.0
Excellent

Anonymous,Dec 2024

DFW - ICN

It was a great experience in all aspects including passengers are respectful to each other. I will consider to use Korean Air again.

Qatar Airways
7.4
Good
3,609 reviews
Korean Air
8.4
Very good
1,037 reviews

Overall

8.4

Crew

8.7

Entertainment

8.2

Boarding

8.5

Food

8.1

Comfort

8.3

Reviews

1 / 20

10.0
Excellent

Anonymous,Dec 2024

DFW - ICN

It was a great experience in all aspects including passengers are respectful to each other. I will consider to use Korean Air again.

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 ($991), Hawaiian Airlines ($1,024), and WestJet ($1,314) offers the cheapest pricing from Ontario to Incheon Intl Airport. These flights start at 19% 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?

    $546 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 WestJet and China Airlines, with prices starting from $581 and $585, 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, February is the cheapest month in which you can book a flight from Ontario to Incheon Intl Airport (average of $1,036). Flying from Ontario to Incheon Intl Airport in June is currently the most expensive (average of $1,697). 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 February 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
China AirlinesCheapest$961Average$1,061FlexibilityNo cancel feeOn-time70%
Korean AirCheapest$1,111Average$1,199FlexibilityNo cancel feeOn-time81%
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