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Cheap flights from Incheon Intl (ICN) to Ontario (ONT) from $318

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 6/10. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
ICN — ONT
Jun 11 — Jun 181
From?
To?
Tue 6/11
Tue 6/18
1 adult, Economy
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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 June 6, 2024.

Popular in

June

Cheapest in

November

Average price

$2,554

Round-trip from

$238
High demand for flights, 52% potential price rise
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Best time to find cheap flights, 45% potential price drop
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Average for round-trip flights in June 2024
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From Incheon Intl to Ontario
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What is the cheapest day to fly round-trip from Incheon Intl Airport to Ontario?

Users have found that flying from Incheon Intl Airport to Ontario on a Sunday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

How far in advance should I book a flight from Incheon Intl Airport to Ontario?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 55 days in advance, which can save you up to 38% on flights from Incheon Intl Airport to Ontario compared to booking the week you need them. Waiting 55 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $1,001. For sooner than that we have options available in the next 3 days from $1,291.

What is the cheapest month to fly from Incheon Intl Airport to Ontario?

March can be a great time to fly to Ontario from Incheon Intl Airport with a flight ticket averaging about $1,111. Cheapflights users have found deals in the month of March for as cheap as $650. The most expensive prices can be found in the month of July.

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

A simple way to save on the total cost of your ticket is to fly from Incheon Intl Airport to Ontario in the morning. If you’re flexible enough to do this you can expect to save up to 34% on your trip compared to booking a flight in the evening.

Cheap Incheon Intl to Ontario flights in June & July 2024

Find cheap flight options from Incheon Intl to Ontario specifically for the months of June and July 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,009,960 searches. Prices were last updated on June 6, 2024.
Listed are some of the best fares we've found on flights departing from Seoul to Ontario in 2024. Check back regularly for other flight deals.
Tue 6/184:50 pmICN - ONT
1 stop21h 37mUnited Airlines
Tue 9/106:45 pmONT - ICN
1 stop17h 35mUnited Airlines
Deal found 6/5$561
Tue 6/184:50 pmICN - ONT
1 stop21h 37mUnited Airlines
Tue 9/105:15 amONT - ICN
2 stops31h 05mUnited Airlines
Deal found 6/5$565
Sat 6/154:50 pmICN - ONT
1 stop21h 37mUnited Airlines
Thu 8/2910:49 amONT - ICN
1 stop25h 31mUnited Airlines
Deal found 6/5$807
Sat 6/154:50 pmICN - ONT
1 stop21h 37mUnited Airlines
Thu 8/291:35 pmONT - ICN
2 stops22h 45mUnited Airlines
Deal found 6/5$811
Mon 6/104:50 pmICN - ONT
1 stop21h 37mUnited Airlines
Tue 7/96:25 pmONT - ICN
2 stops28h 35mUnited Airlines
Deal found 6/5$891
Mon 6/1011:30 amICN - ONT
1 stop17h 15mUnited Airlines
Tue 7/91:35 pmONT - ICN
2 stops22h 45mUnited Airlines
Deal found 6/5$894
Wed 6/1211:30 amICN - ONT
1 stop17h 15mUnited Airlines
Fri 7/126:20 amONT - ICN
1 stop16h 40mUnited Airlines
Deal found 6/5$900
Wed 6/1211:30 amICN - ONT
1 stop17h 15mUnited Airlines
Fri 7/125:10 amONT - ICN
2 stops31h 10mUnited Airlines
Deal found 6/5$904
Wed 6/195:25 pmICN - ONT
2 stops45h 34mAmerican Airlines
Wed 6/2611:59 pmONT - ICN
1 stop23h 16mAmerican Airlines
Deal found 6/5$929

Incheon Intl to Ontario 2024 flight deals

Discover exclusive flight deals for travel between Incheon Intl and Ontario in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,009,960 searches. Data last updated June 6, 2024.
Listed are some of the best fares we've found on flights departing from Seoul to Ontario in 2024. Check back regularly for other flight deals.
Tue 9/174:50 pmICN - ONT
1 stop17h 06mUnited Airlines
Fri 9/275:15 amONT - ICN
2 stops31h 05mUnited Airlines
Deal found 6/5$552
Fri 11/81:00 pmICN - ONT
1 stop13h 53mUnited Airlines
Mon 11/256:00 amONT - ICN
1 stop17h 15mUnited Airlines
Deal found 6/5$554
Tue 6/184:50 pmICN - ONT
1 stop21h 37mUnited Airlines
Tue 9/106:45 pmONT - ICN
1 stop17h 35mUnited Airlines
Deal found 6/5$561
Tue 6/184:50 pmICN - ONT
1 stop21h 37mUnited Airlines
Tue 9/105:15 amONT - ICN
2 stops31h 05mUnited Airlines
Deal found 6/5$565
Wed 9/1111:30 amICN - ONT
2 stops25h 32mUnited Airlines
Sun 9/226:45 pmONT - ICN
1 stop17h 35mUnited Airlines
Deal found 6/5$607
Sun 9/2211:30 amICN - ONT
1 stop14h 37mUnited Airlines
Fri 10/187:18 amONT - ICN
1 stop15h 42mUnited Airlines
Deal found 6/4$612
Sun 9/2211:30 amICN - ONT
1 stop14h 37mUnited Airlines
Fri 10/257:18 amONT - ICN
1 stop15h 42mUnited Airlines
Deal found 6/5$616
Sun 9/224:50 pmICN - ONT
2 stops20h 12mUnited Airlines
Fri 10/187:18 amONT - ICN
1 stop15h 42mUnited Airlines
Deal found 6/4$617
Sun 9/84:50 pmICN - ONT
1 stop23h 55mUnited Airlines
Sun 9/156:25 pmONT - ICN
2 stops28h 35mUnited Airlines
Deal found 6/5$620

Incheon Intl to Ontario flights leaving soon

Find last-minute flight options from Incheon Intl to Ontario for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 3,009,960 searches. Data last updated June 6, 2024.
Have a look at some of the flights available from Seoul to Ontario departing last-minute. Users should be sure to double check the price, date, and time of their last-minute flight.
Sat 6/154:50 pmICN - ONT
1 stop21h 37mUnited Airlines
Thu 8/2910:49 amONT - ICN
1 stop25h 31mUnited Airlines
Deal found 6/5$807
Sat 6/154:50 pmICN - ONT
1 stop21h 37mUnited Airlines
Thu 8/291:35 pmONT - ICN
2 stops22h 45mUnited Airlines
Deal found 6/5$811
Wed 6/1211:30 amICN - ONT
1 stop17h 15mUnited Airlines
Fri 7/126:20 amONT - ICN
1 stop16h 40mUnited Airlines
Deal found 6/5$900
Wed 6/1211:30 amICN - ONT
1 stop17h 15mUnited Airlines
Fri 7/125:10 amONT - ICN
2 stops31h 10mUnited Airlines
Deal found 6/5$904
Fri 6/1411:30 amICN - ONT
1 stop26h 57mUnited Airlines
Mon 8/1910:49 amONT - ICN
1 stop25h 31mUnited Airlines
Deal found 6/5$1,104
Thu 6/135:25 pmICN - ONT
2 stops45h 34mAmerican Airlines
Thu 6/2010:45 pmONT - ICN
2 stops48h 30mAmerican Airlines
Deal found 6/5$1,105
Fri 6/1412:35 pmICN - ONT
1 stop21h 30mChina Airlines
Sun 8/1812:45 amONT - ICN
1 stop27h 00mChina Airlines
Deal found 6/5$1,175
Wed 6/1211:30 amICN - ONT
1 stop26h 57mUnited Airlines
Sun 6/165:50 amONT - ICN
1 stop30h 30mUnited Airlines
Deal found 6/5$1,399
Thu 6/1311:30 amICN - ONT
1 stop17h 15mUnited Airlines
Thu 6/201:29 pmONT - ICN
2 stops22h 51mUnited Airlines
Deal found 6/5$1,494

One-way flights to Ontario from Incheon Intl

Search for one-way flight options from Incheon Intl to Ontario. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 3,009,960 searches. Data last updated June 6, 2024.
Take a look at some of the best available options we've come across on one-way flights from Seoul to Ontario. Those seeking round-trip flights from Seoul to Ontario should utilize the search form at the the top of the page.
Mon 6/104:50 pmICN - ONT
2 stops35h 43mUnited Airlines
Deal found 6/5$318
Sat 6/84:50 pmICN - ONT
1 stop21h 37mUnited Airlines
Deal found 6/5$384
Sat 6/1511:30 amICN - ONT
1 stop26h 57mUnited Airlines
Deal found 6/5$394
Tue 9/312:35 pmICN - ONT
1 stop22h 05mChina Airlines
Deal found 6/5$595
Tue 9/39:00 amICN - ONT
2 stops20h 21mUnited Airlines
Deal found 6/5$617
Tue 9/38:50 amICN - ONT
2 stops25h 50mMultiple Airlines
Deal found 6/5$635
Mon 9/212:45 amICN - ONT
2 stops33h 55mMultiple Airlines
Deal found 6/5$697
Wed 6/129:25 pmICN - ONT
1 stop16h 20mHawaiian Airlines
Deal found 6/5$702
Sat 8/318:50 amICN - ONT
2 stops25h 50mMultiple Airlines
Deal found 6/5$714

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 3,009,960 searches. Data last updated June 6, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$561 - $1,267

Route

Depart

Return

Price

Incheon IntlOntario

ICN - ONT

ICNONT

Incheon Intl

Tue 6/18

1 stop21h 37m

Ontario

Tue 9/10

1 stop17h 35m

$561

Incheon IntlOntario

ICN - ONT

ICNONT

Incheon Intl

Tue 6/18

1 stop21h 37m

Ontario

Tue 9/10

2 stops31h 05m

$565

Incheon IntlOntario

ICN - ONT

ICNONT

Incheon Intl

Sun 9/1

1 stop17h 06m

Ontario

Thu 10/31

1 stop18h 05m

$766

Incheon IntlOntario

ICN - ONT

ICNONT

Incheon Intl

Tue 9/3

1 stop14h 37m

Ontario

Sat 9/7

2 stops31h 05m

$798

Incheon IntlOntario

ICN - ONT

ICNONT

Incheon Intl

Sat 6/15

1 stop21h 37m

Ontario

Thu 8/29

1 stop25h 31m

$807

Incheon IntlOntario

ICN - ONT

ICNONT

Incheon Intl

Wed 6/19

2 stops45h 34m

Ontario

Wed 6/26

1 stop23h 16m

$929

Incheon IntlOntario

ICN - ONT

ICNONT

Incheon Intl

Thu 8/29

1 stop37h 50m

Ontario

Fri 8/30

1 stop27h 00m

$935

Incheon IntlOntario

ICN - ONT

ICNONT

Incheon Intl

Mon 6/10

1 stop16h 20m

Ontario

Sat 6/22

1 stop17h 20m

$1,193

Incheon IntlOntario

ICN - ONT

ICNONT

Incheon Intl

Sat 8/24

1 stop37h 50m

Ontario

Sun 9/1

1 stop17h 10m

$1,267

Flights are sorted by cheapest first

Deals found on 6/5

What is the cheapest day to fly from Incheon Intl Airport to Ontario?

Use this chart to determine the cheapest time to fly round-trip from Incheon Intl to Ontario. Price data was last updated on June 2, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Incheon Intl Airport to Ontario flight should consider departing on Wednesday mornings when fares are most often at their lowest. Monday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

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.

Temperature and rainfall in Ontario by month

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

LAX

Temperature

57.2 - 73.4 °F

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 June 6, 2024.
Read reviews from past customers who have flown American Airlines, China Airlines and Hawaiian Airlines from Seoul to Ontario. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.5
Very good
1,136 reviews

Boarding

8.6

Comfort

8.3

Entertainment

8.2

Food

8.2

Crew

8.8

Overall

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!

Korean Air
8.5
Very good
1,136 reviews
Korean Air
8.5
Very good
1,136 reviews

Boarding

8.6

Comfort

8.3

Entertainment

8.2

Food

8.2

Crew

8.8

Overall

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!

China Airlines
8.3
Very good
884 reviews
Korean Air
8.5
Very good
1,136 reviews

Boarding

8.6

Comfort

8.3

Entertainment

8.2

Food

8.2

Crew

8.8

Overall

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!

Emirates
8.1
Very good
3,898 reviews
Korean Air
8.5
Very good
1,136 reviews

Boarding

8.6

Comfort

8.3

Entertainment

8.2

Food

8.2

Crew

8.8

Overall

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!

Delta
8.0
Very good
10,371 reviews
Korean Air
8.5
Very good
1,136 reviews

Boarding

8.6

Comfort

8.3

Entertainment

8.2

Food

8.2

Crew

8.8

Overall

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!

Hawaiian Airlines
8.0
Very good
2,298 reviews
Korean Air
8.5
Very good
1,136 reviews

Boarding

8.6

Comfort

8.3

Entertainment

8.2

Food

8.2

Crew

8.8

Overall

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 $600 on Cheapflights?

    Yes, there are multiple flights from Incheon Intl Airport to Ontario for under $600. The cheapest flight booked recently is on United Airlines for just $561, but on average you can expect to pay $917.

  • Are there last-minute flights available from Incheon Intl Airport to Ontario for under $900?

    There are currently 20+ open flights from Incheon Intl Airport to Ontario within the next 7 days for less than $900.

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

    United Airlines, at $561, 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. United Airlines is 54% cheaper than the average price of flights available within the next 90 days to this destination.

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

    To fly one-way, consider booking your trip with United Airlines, which is currently one of the cheapest options available, starting at $318. China Airlines flights start at $595 while deals on Hawaiian Airlines start at $702 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 6/5.

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

    Currently, October is the cheapest month in which you can book a flight from Incheon Intl Airport to Ontario (average of $239). Flying from Incheon Intl Airport to Ontario in July is currently the most expensive (average of $327). 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 Incheon Intl to Ontario
See prices for flight routes from nearby airports that may be better suited for you.

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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 3,009,960 searches. Data last updated June 6, 2024.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$651Average$785FlexibilityNo cancel feeOn-time69%
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Incheon Intl Airport to Chicago O'Hare Intl Airport flights

Search flights from Incheon Intl to Ontario by cabin class

Find flights from Incheon Intl to Ontario, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Incheon Intl to Ontario?

Deals for Incheon Intl to Ontario flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Incheon Intl to Ontario?

Cheapflights helps you find that perfect flight to Ontario from Incheon Intl by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Incheon Intl to Ontario with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Incheon Intl to Ontario, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Incheon Intl to Ontario become cheaper?

Of course! You can now track prices for flights from Incheon Intl to Ontario and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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