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$335+ Cheap flights from Ontario (ONT) to Asia

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 1/10. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — ICN
Dec 23 — Dec 301
Mon 12/23
Mon 12/30
1 adult, Economy
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Cheap flight deals from Ontario to Asia

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Asia (AS0). 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 December 18, 2024.

Round-trip from

$660
(American Airlines)

One-way from

$335
(Trip.com)
From Ontario to Asia
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One-way flight from Ontario to Asia
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Find flight deals from Ontario to Asia

Cheapest flights from Ontario to Asia
Explore the most affordable flight options available from Ontario to Asia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2024.

This United Airlines deal was found by Cheapflights users on 12/17. 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.
Wed 12/255:05 amONT - NRT
1 stop17h 40mUnited Airlines
Wed 1/154:50 pmNRT - ONT
1 stop18h 14mUnited Airlines
Deal found 12/17$715
This United Airlines deal was found by Cheapflights users on 12/17. 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.
Tue 12/316:00 amONT - HND
1 stop15h 50mUnited Airlines
Tue 1/284:25 pmHND - ONT
1 stop18h 39mUnited Airlines
Deal found 12/17$821
This United Airlines deal was found by Cheapflights users on 12/17. 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.
Sat 12/2810:39 amONT - TPE
1 stop17h 11mUnited Airlines
Mon 1/2011:10 amTPE - ONT
1 stop14h 41mUnited Airlines
Deal found 12/17$957
This FlightHub deal was found by Cheapflights users on 12/16. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/3110:45 pmONT - TPE
Nonstop14h 45mChina Airlines
Mon 2/109:25 pmTPE - ONT
Nonstop11h 25mChina Airlines
Deal found 12/16$974
This United Airlines deal was found by Cheapflights users on 12/18. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/296:00 amONT - KIX
1 stop17h 35mUnited Airlines
Mon 2/106:30 pmKIX - ONT
1 stop16h 27mUnited Airlines
Deal found 12/18$982
This Delta deal was found by Cheapflights users on 12/18. 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.
Tue 12/313:00 pmONT - SGN
2 stops41h 20mDelta
Wed 1/298:05 amSGN - ONT
2 stops29h 27mDelta
Deal found 12/18$1,034
This China Airlines deal was found by Cheapflights users on 12/17. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/3110:45 pmONT - SGN
1 stop27h 05mChina Airlines
Tue 2/411:00 amSGN - ONT
1 stop20h 50mChina Airlines
Deal found 12/17$1,086
This oojo deal was found by Cheapflights users on 12/17. 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 12/2910:45 pmONT - BKK
1 stop27h 00mChina Airlines
Sat 2/810:55 amBKK - ONT
1 stop20h 55mChina Airlines
Deal found 12/17$1,093
This United Airlines deal was found by Cheapflights users on 12/17. 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 12/306:00 amONT - MNL
1 stop32h 50mUnited Airlines
Tue 1/219:55 amMNL - ONT
1 stop24h 09mUnited Airlines
Deal found 12/17$1,143
This Japan Airlines deal was found by Cheapflights users on 12/17. 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.
Tue 12/3112:36 pmONT - NRT
1 stop33h 54mMultiple Airlines
Tue 1/286:10 pmNRT - ONT
1 stop19h 03mMultiple Airlines
Deal found 12/17$1,197
This ScholarTrip deal was found by Cheapflights users on 12/17. 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 12/317:00 amONT - SGN
2 stops24h 15mKorean Air
Mon 1/2711:40 pmSGN - ONT
2 stops37h 52mKorean Air
Deal found 12/17$1,239
This Kiwi.com deal was found by Cheapflights users on 12/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/3012:00 pmONT - SGN
2 stops46h 40mMultiple Airlines
Sun 2/211:00 amSGN - ONT
1 stop20h 50mMultiple Airlines
Deal found 12/18$1,241

Find flights from Ontario to Asia within your budget

Customize your flight search to find flights from Ontario to Asia 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 December 18, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

OntarioTokyo

ONT - HND

ONTHND

Ontario

Sun 1/19

6:00 am-6:25 pm

1 stop19h 25m

Tokyo Haneda

Tue 2/4

6:00 pm-6:37 pm

1 stop17h 37m

$660

OntarioTokyo

ONT - NRT

ONTNRT

Ontario

Sun 1/19

11:59 pm-3:30 pm

1 stop22h 31m

Tokyo Narita

Tue 2/4

5:10 pm-3:29 pm

2 stops15h 19m

$661

OntarioTokyo

ONT - NRT

ONTNRT

Ontario

Tue 1/28

6:00 am-3:40 pm

1 stop16h 40m

Tokyo Narita

Wed 2/19

6:10 pm-9:27 pm

1 stop20h 17m

$684

OntarioTokyo

ONT - HND

ONTHND

Ontario

Mon 2/10

6:00 am-3:20 pm

1 stop16h 20m

Tokyo Haneda

Thu 2/20

4:50 pm-3:25 pm

1 stop15h 35m

$707

OntarioTokyo

ONT - NRT

ONTNRT

Ontario

Mon 1/13

6:45 am-7:55 pm

1 stop20h 10m

Tokyo Narita

Sat 1/25

9:25 pm-7:11 am

2 stops26h 46m

$708

OntarioTokyo

ONT - HND

ONTHND

Ontario

Wed 1/15

6:15 am-2:50 pm

1 stop15h 35m

Tokyo Haneda

Wed 2/5

4:25 pm-6:04 pm

1 stop18h 39m

$717

OntarioOsaka

ONT - KIX

ONTKIX

Ontario

Sun 1/26

6:15 am-4:35 pm

1 stop17h 20m

Osaka Kansai Intl

Wed 2/12

6:30 pm-6:04 pm

1 stop16h 34m

$718

OntarioTokyo

ONT - NRT

ONTNRT

Ontario

Wed 1/15

5:10 am-3:45 pm

1 stop17h 35m

Tokyo Narita

Wed 2/5

5:30 pm-8:51 pm

1 stop20h 21m

$719

OntarioOsaka

ONT - KIX

ONTKIX

Ontario

Sat 1/18

12:48 pm-6:50 pm

2 stops37h 02m

Osaka Kansai Intl

Sat 2/8

5:50 pm-10:45 pm

2 stops21h 55m

$731

OntarioTaipei City

ONT - TPE

ONTTPE

Ontario

Mon 1/13

6:00 am-9:05 pm

1 stop23h 05m

Taipei City Taiwan Taoyuan Intl

Mon 1/27

10:45 am-3:25 pm

1 stop20h 40m

$761

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 60 results
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Best time to book a flight from Ontario to Asia

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

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

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

Currently, October is the cheapest month in which you can book a flight from Ontario to Asia (average of $1,086). Flying from Ontario to Asia in June is currently the most expensive (average of $1,729). 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 AS?

Find hourly flight availability from Ontario to Asia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 18, 2024.

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

Rainfall in Asia by month

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

In terms of precipitation, rainfall in Asia ranges from 0.4 - 15.7 inches per month. July is typically the wettest month, when rainfall can reach 15.7 in. February is typically the driest time to visit Asia when rainfall is around 0.4 in.

Temperature in Asia by month

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

If weather is an important factor for your trip to Asia, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 78.8 F).

Reviews of airlines servicing Asia

Get insights into the airlines that provide service to Asia. 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 Asia. Reviews last updated December 18, 2024.
Korean Air
8.4
Very good
1,018 reviews

Crew

8.7

Overall

8.4

Comfort

8.3

Food

8.1

Boarding

8.5

Entertainment

8.2

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
8.4
Very good
1,018 reviews
Korean Air
8.4
Very good
1,018 reviews

Crew

8.7

Overall

8.4

Comfort

8.3

Food

8.1

Boarding

8.5

Entertainment

8.2

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.

ANA
8.4
Very good
839 reviews
Korean Air
8.4
Very good
1,018 reviews

Crew

8.7

Overall

8.4

Comfort

8.3

Food

8.1

Boarding

8.5

Entertainment

8.2

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
1,443 reviews
Korean Air
8.4
Very good
1,018 reviews

Crew

8.7

Overall

8.4

Comfort

8.3

Food

8.1

Boarding

8.5

Entertainment

8.2

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
8.3
Very good
754 reviews
Korean Air
8.4
Very good
1,018 reviews

Crew

8.7

Overall

8.4

Comfort

8.3

Food

8.1

Boarding

8.5

Entertainment

8.2

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
8,604 reviews
Korean Air
8.4
Very good
1,018 reviews

Crew

8.7

Overall

8.4

Comfort

8.3

Food

8.1

Boarding

8.5

Entertainment

8.2

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 Asia. 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 Asia?

    If you book a flight to Asia 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 Asia one-way?

    $428 is the cheapest one-way deal found within the past few days, from Delta. You may also be able to find cheap deals on China Airlines and Japan Airlines, with prices starting from $434 and $439, respectively.

  • What are the most popular routes from Ontario to Asia?

    The most popular route from Ontario to Asia is Ontario - Tokyo Narita. You may also consider Ontario - Tokyo Haneda or Ontario - Manila Ninoy Aquino Intl.

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

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

  • How can I find direct flights from Ontario to Asia?

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

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

    Yes. Cheapflights offers flight deals from Ontario to Asia 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 Asia?

    Currently, October is the cheapest month in which you can book a flight from Ontario to Asia (average of $1,086). Flying from Ontario to Asia in June is currently the most expensive (average of $1,729). 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 Ontario to Asia

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Top 10 airlines flying from Ontario to Asia

Discover the top 10 airlines that operate flights from Ontario to Asia. 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 December 18, 2024.
AirlineCheapestAverageFlexibilityOn-time
ZIPAIRCheapest$624Average$770FlexibilityNo cancel feeOn-timeN/A
ANACheapest$677Average$962FlexibilityNo cancel feeOn-time80%
Asiana AirlinesCheapest$683Average$874FlexibilityNo cancel feeOn-time76%
Cathay PacificCheapest$710Average$905FlexibilityNo cancel feeOn-time72%
Japan AirlinesCheapest$736Average$1,063FlexibilityNo cancel feeOn-time79%
China AirlinesCheapest$741Average$1,046FlexibilityNo cancel feeOn-time70%
DeltaCheapest$775Average$1,029FlexibilityNo cancel feeOn-timeN/A
EVA AirCheapest$780Average$1,282FlexibilityNo cancel feeOn-time74%
Korean AirCheapest$785Average$1,003FlexibilityNo cancel feeOn-time81%
United AirlinesCheapest$795Average$1,282FlexibilityNo cancel feeOn-time69%
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