Ontario

$383+ Cheap flights from Incheon Intl (ICN) to Ontario (ONT)

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 11/6. Fares are subject to change and may not be available on all flights or dates of travel.
ICN — ONT
Nov 5 — Nov 121
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Incheon Intl to Ontario with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Incheon Intl to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Incheon Intl (ICN) to Ontario (ONT). 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 October 31, 2024.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$693
(United Airlines)

One-way from

$383
(Kiwi.com)
Provider with most accurate pricing for Incheon Intl-Ontario flight deals.
Provider most trusted by Cheapflights users for Incheon Intl-Ontario flights.
From Incheon Intl to Ontario
One-way flight from Incheon Intl to Ontario

Find flight deals from Incheon Intl to Ontario

Cheapest flights from Incheon Intl to Ontario
Explore the most affordable flight options available from Incheon Intl to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 31, 2024.

This United Airlines deal was found by Cheapflights users on 10/30. 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.
Thu 11/76:00 pmICN - ONT
1 stop16h 43mUnited Airlines
Thu 11/146:00 amONT - ICN
1 stop17h 15mUnited Airlines
Deal found 10/30$694
This Trip.com deal was found by Cheapflights users on 10/30. 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 11/256:55 pmICN - ONT
1 stop16h 07mMultiple Airlines
Fri 1/246:00 amONT - ICN
1 stop21h 30mMultiple Airlines
Deal found 10/30$707
This American Airlines deal was found by Cheapflights users on 10/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/116:50 pmICN - ONT
1 stop20h 23mAmerican Airlines
Sun 1/1211:59 pmONT - ICN
1 stop23h 46mAmerican Airlines
Deal found 10/30$712
This FlightHub deal was found by Cheapflights users on 10/31. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/912:25 pmICN - ONT
1 stop21h 25mChina Airlines
Sat 9/2712:10 amONT - ICN
1 stop19h 00mChina Airlines
Deal found 10/31$765
This Hawaiian Airlines deal was found by Cheapflights users on 10/30. 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 11/259:25 pmICN - ONT
1 stop17h 45mHawaiian Airlines
Mon 1/610:05 amONT - ICN
1 stop40h 20mHawaiian Airlines
Deal found 10/30$767
This Ovago deal was found by Cheapflights users on 10/30. 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.
Sat 12/214:10 pmICN - ONT
1 stop18h 17mKorean Air
Sat 12/287:00 amONT - ICN
1 stop15h 55mKorean Air
Deal found 10/30$1,512
This Air Canada deal was found by Cheapflights users on 10/30. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/56:20 pmICN - ONT
2 stops21h 03mAir Canada
Tue 11/1910:35 amONT - ICN
2 stops38h 50mAir Canada
Deal found 10/30$1,628
This oojo deal was found by Cheapflights users on 10/30. 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.
Tue 11/512:20 amICN - ONT
2 stops36h 43mQatar Airways
Wed 11/136:00 amONT - ICN
2 stops35h 00mQatar Airways
Deal found 10/30$2,056

Find flights from Incheon Intl to Ontario within your budget

Customize your flight search to find flights from Incheon Intl to Ontario 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 2,570,725 searches. Data last updated October 31, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

IncheonOntario

ICN - ONT

ICNONT

Incheon Intl

Wed 11/6

6:55 pm-9:30 am

1 stop31h 35m

$383

IncheonOntario

ICN - ONT

ICNONT

Incheon Intl

Wed 11/6

9:25 pm-9:30 pm

1 stop17h 05m

$440

IncheonOntario

ICN - ONT

ICNONT

Incheon Intl

Tue 12/17

12:25 pm-4:50 pm

1 stop21h 25m

$474

IncheonOntario

ICN - ONT

ICNONT

Incheon Intl

Tue 1/28

6:50 pm-10:16 pm

1 stop20h 26m

$599

IncheonOntario

ICN - ONT

ICNONT

Incheon Intl

Tue 11/12

6:00 pm-12:40 pm

2 stops35h 40m

$695

IncheonOntario

ICN - ONT

ICNONT

Incheon Intl

Sat 1/18

4:55 pm-6:19 pm

2 stops18h 24m

$736

IncheonOntario

ICN - ONT

ICNONT

Incheon Intl

Wed 11/6

8:05 pm-10:39 pm

1 stop19h 34m

$777

IncheonOntario

ICN - ONT

ICNONT

Incheon Intl

Fri 11/8

4:10 pm-4:46 pm

1 stop17h 36m

$818

IncheonOntario

ICN - ONT

ICNONT

Incheon Intl

Wed 11/13

12:20 am-8:03 pm

2 stops36h 43m

$1,211

IncheonOntario

ICN - ONT

ICNONT

Incheon Intl

Tue 3/18

11:45 am-9:59 am

1 stop14h 14m

Ontario

Mon 4/14

8:18 pm-4:20 am

1 stop16h 02m

$693

Flights are sorted by cheapest first

Deals found on 10/29

Showing 1-10 of 16 results
1
2

Compare providers for flights from Incheon Intl to Ontario

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 Incheon Intl to Ontario in October.
ProviderPrice AccuracyTrust Score*Cancellation Policy
oojoPrice Accuracy3 starsTrust Score*3 starsCancellation PolicyAirline Policy
FlightHubPrice Accuracy3 starsTrust Score*3 starsCancellation PolicyAirline Policy
eDreamsPrice Accuracy3 starsTrust Score*3 starsCancellation PolicyAirline Policy

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

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

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

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

Currently, September is the cheapest month in which you can book a flight from Incheon Intl Airport to Ontario (average of $236). Flying from Incheon Intl Airport to Ontario in December is currently the most expensive (average of $288). 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 ICN to ONT?

Find hourly flight availability from Incheon Intl to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 31, 2024.

A simple way to save on the total cost of your ticket is to fly from Incheon Intl Airport to Ontario in the afternoon. If you’re flexible enough to do this you can expect to save up to 22% on your trip compared to booking a flight at noon.

Rainfall in Ontario by month

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

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

Temperature in Ontario by month

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

If weather is an important factor for your trip to Ontario, 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 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated October 31, 2024.
Read reviews from past customers who have flown American Airlines, China Airlines and United Airlines from Seoul to Ontario. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
8.5
Very good
1,039 reviews

Comfort

8.3

Overall

8.5

Crew

8.7

Food

8.1

Entertainment

8.2

Boarding

8.5

Reviews

1 / 10

I like the crews’ services, especially for sr citizens who were on wheelchairs, the efficient pilots with their smooth landing of the plane back and forth, cleanliness of the restrooms and other amenities provided to the passengers! Flights were on time it’s fine with a little bit delay but we arrived on time!

8.5
Very good
1,039 reviews
8.5
Very good
1,039 reviews

Comfort

8.3

Overall

8.5

Crew

8.7

Food

8.1

Entertainment

8.2

Boarding

8.5

Reviews

1 / 10

I like the crews’ services, especially for sr citizens who were on wheelchairs, the efficient pilots with their smooth landing of the plane back and forth, cleanliness of the restrooms and other amenities provided to the passengers! Flights were on time it’s fine with a little bit delay but we arrived on time!

8.3
Very good
792 reviews
8.5
Very good
1,039 reviews

Comfort

8.3

Overall

8.5

Crew

8.7

Food

8.1

Entertainment

8.2

Boarding

8.5

Reviews

1 / 10

I like the crews’ services, especially for sr citizens who were on wheelchairs, the efficient pilots with their smooth landing of the plane back and forth, cleanliness of the restrooms and other amenities provided to the passengers! Flights were on time it’s fine with a little bit delay but we arrived on time!

8.0
Very good
8,835 reviews
8.5
Very good
1,039 reviews

Comfort

8.3

Overall

8.5

Crew

8.7

Food

8.1

Entertainment

8.2

Boarding

8.5

Reviews

1 / 10

I like the crews’ services, especially for sr citizens who were on wheelchairs, the efficient pilots with their smooth landing of the plane back and forth, cleanliness of the restrooms and other amenities provided to the passengers! Flights were on time it’s fine with a little bit delay but we arrived on time!

7.9
Good
2,303 reviews
8.5
Very good
1,039 reviews

Comfort

8.3

Overall

8.5

Crew

8.7

Food

8.1

Entertainment

8.2

Boarding

8.5

Reviews

1 / 10

I like the crews’ services, especially for sr citizens who were on wheelchairs, the efficient pilots with their smooth landing of the plane back and forth, cleanliness of the restrooms and other amenities provided to the passengers! Flights were on time it’s fine with a little bit delay but we arrived on time!

7.5
Good
3,900 reviews
8.5
Very good
1,039 reviews

Comfort

8.3

Overall

8.5

Crew

8.7

Food

8.1

Entertainment

8.2

Boarding

8.5

Reviews

1 / 10

I like the crews’ services, especially for sr citizens who were on wheelchairs, the efficient pilots with their smooth landing of the plane back and forth, cleanliness of the restrooms and other amenities provided to the passengers! Flights were on time it’s fine with a little bit delay but we arrived on time!

Related info for your journey

Find useful and relevant information for your journey from Incheon Intl to Ontario. 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 into for flights to Ontario from Incheon Intl?

    If you book a flight to Ontario from Incheon Intl, you will be flying to Ontario, which is the city’s only airport. Ontario (ONT) is located 3.1 mi from the center of Ontario. There are 0 flights from Incheon Intl to Ontario per day from 1 airline.

  • Can I find flights from Incheon Intl Airport to Ontario for under $700 on Cheapflights?

    Yes, there are multiple flights from Incheon Intl Airport to Ontario for under $700. The cheapest flight booked recently is on United Airlines for just $693, but on average you can expect to pay $862.

  • Are there last-minute flights available from Incheon Intl Airport to Ontario for under $700?

    There are currently 7+ open flights from Incheon Intl Airport to Ontario within the next 7 days for less than $700.

  • What are the cheapest airlines flying from Incheon Intl Airport to Ontario round-trip?

    United Airlines, at $693, was found to be the cheapest airline from Incheon Intl Airport to Ontario.Alternate airlines to your destination round-trip include American Airlines and China Airlines.

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

    To fly one-way, consider booking your trip with Hawaiian Airlines, which is currently one of the cheapest options available, starting at $440. China Airlines flights start at $552 while deals on American Airlines start at $599 one-way.

  • What does ICN to ONT mean?

    ICN stands for Incheon Intl Airport, while ONT stands for Ontario Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry.

  • Can I find deals for flights from Incheon Intl to Ontario that include extra baggage allowance?

    The amount of baggage you can bring on your Incheon Intl to Ontario flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Incheon Intl to Ontario with specific airlines?

    Yes, Cheapflights allows you to browse and filter Incheon Intl to Ontario flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

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

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

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

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

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

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

  • Can I find deals for flights from Incheon Intl to Ontario that allow pets onboard?

    Many airlines flying from Incheon Intl to Ontario offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Incheon Intl to Ontario?

    Yes, you can often find last-minute deals on Incheon Intl to Ontario flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Incheon Intl Airport to Ontario flight deals updated?

    The Incheon Intl Airport to Ontario flight deals you see on this page were last updated on 10/31.

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

    Currently, September is the cheapest month in which you can book a flight from Incheon Intl Airport to Ontario (average of $236). Flying from Incheon Intl Airport to Ontario in December is currently the most expensive (average of $288). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top airline flying from Incheon Intl to Ontario

Discover the top airline that operate flights from Incheon Intl to Ontario. 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 2,570,725 searches. Data last updated October 31, 2024.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$674Average$785FlexibilityNo cancel feeOn-time69%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.