Asia

$322+ 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 2/20. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — ICN
Jan 21 — Jan 281
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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 January 17, 2025.

Round-trip from

$658
(Kiwi.com)

One-way from

$322
(Trip.com)
From Ontario to Asia
One-way flight from Ontario to Asia

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 January 17, 2025.

This Kiwi.com deal was found by Cheapflights users on 1/15. 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.
Sun 2/238:26 amONT - NRT
1 stop18h 29mMultiple Airlines
Sat 3/19:25 pmNRT - ONT
1 stop29h 09mMultiple Airlines
Deal found 1/15$660
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/2611:59 pmONT - NRT
2 stops22h 41mAmerican Airlines
Tue 2/115:10 pmNRT - ONT
2 stops15h 19mAmerican Airlines
Deal found 1/16$662
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.
Tue 2/186:00 amONT - HND
1 stop16h 20mDelta
Thu 2/274:50 pmHND - ONT
1 stop15h 35mDelta
Deal found 1/16$667
This American Airlines deal was found by Cheapflights users on 1/15. 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.
Tue 2/186:59 amONT - HND
1 stop18h 26mAmerican Airlines
Fri 2/288:25 pmHND - ONT
2 stops18h 39mAmerican Airlines
Deal found 1/15$673
This Trip.com deal was found by Cheapflights users on 1/15. 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.
Wed 1/226:00 amONT - NRT
1 stop16h 40mJapan Airlines
Wed 1/296:10 pmNRT - ONT
1 stop19h 03mJapan Airlines
Deal found 1/15$684
This United 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/13:15 pmONT - HND
2 stops35h 30mMultiple Airlines
Thu 11/133:30 pmHND - ONT
2 stops16h 11mMultiple Airlines
Deal found 1/16$715
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.
Wed 1/296:15 amONT - HND
1 stop15h 35mUnited Airlines
Wed 2/1910:55 pmHND - ONT
1 stop14h 45mUnited Airlines
Deal found 1/16$718
This United Airlines deal was found by Cheapflights users on 1/15. 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 2/45:10 amONT - NRT
1 stop17h 35mUnited Airlines
Fri 2/144:50 pmNRT - ONT
1 stop14h 39mUnited Airlines
Deal found 1/15$719
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.
Tue 4/15:15 pmONT - TPE
2 stops35h 40mDelta
Tue 5/209:35 amTPE - ONT
2 stops21h 44mDelta
Deal found 1/16$759
This United Airlines deal was found by Cheapflights users on 1/15. 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 2/246:00 amONT - KIX
1 stop17h 35mUnited Airlines
Mon 3/106:30 pmKIX - ONT
1 stop17h 40mUnited Airlines
Deal found 1/15$766
This Gotogate deal was found by Cheapflights users on 1/15. 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.
Mon 2/2410:45 pmONT - MNL
1 stop25h 10mChina Airlines
Wed 3/1210:55 amMNL - ONT
1 stop21h 55mChina Airlines
Deal found 1/15$769
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

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 January 17, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

OntarioTokyo

ONT - NRT

ONTNRT

Ontario

Mon 1/27

6:45 am-7:55 pm

1 stop20h 10m

Tokyo Narita

Fri 2/7

9:25 pm-11:31 pm

1 stop19h 06m

$658

OntarioTokyo

ONT - NRT

ONTNRT

Ontario

Sun 1/26

11:59 pm-3:40 pm

2 stops22h 41m

Tokyo Narita

Tue 2/11

5:10 pm-3:29 pm

2 stops15h 19m

$662

OntarioTokyo

ONT - HND

ONTHND

Ontario

Tue 2/18

6:00 am-3:20 pm

1 stop16h 20m

Tokyo Haneda

Thu 2/27

4:50 pm-3:25 pm

1 stop15h 35m

$667

OntarioTokyo

ONT - HND

ONTHND

Ontario

Tue 2/18

6:59 am-6:25 pm

1 stop18h 26m

Tokyo Haneda

Fri 2/28

8:25 pm-10:04 pm

2 stops18h 39m

$673

OntarioTokyo

ONT - HND

ONTHND

Ontario

Wed 1/29

6:15 am-2:50 pm

1 stop15h 35m

Tokyo Haneda

Wed 2/19

10:55 pm-8:40 pm

1 stop14h 45m

$718

OntarioTokyo

ONT - NRT

ONTNRT

Ontario

Tue 2/4

6:15 am-3:00 pm

1 stop15h 45m

Tokyo Narita

Wed 2/19

4:50 pm-2:29 pm

1 stop14h 39m

$719

OntarioTaipei City

ONT - TPE

ONTTPE

Ontario

Tue 4/1

6:00 am-7:55 pm

2 stops22h 55m

Taipei City Taiwan Taoyuan Intl

Wed 5/7

9:35 am-1:13 pm

1 stop18h 38m

$759

OntarioOsaka

ONT - KIX

ONTKIX

Ontario

Mon 2/24

6:00 am-4:35 pm

1 stop17h 35m

Osaka Kansai Intl

Mon 3/10

6:30 pm-8:10 pm

1 stop17h 40m

$766

OntarioManila

ONT - MNL

ONTMNL

Ontario

Mon 3/10

11:45 pm-9:55 am

1 stop19h 10m

Manila Ninoy Aquino Intl

Mon 10/6

4:50 pm-6:00 pm

1 stop16h 10m

$770

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

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/16

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 $1,723). 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 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 January 17, 2025.

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 January 17, 2025.
8.5
Very good
1,034 reviews

Overall

8.5

Comfort

8.3

Entertainment

8.2

Food

8.1

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.

8.5
Very good
1,034 reviews
8.5
Very good
1,034 reviews

Overall

8.5

Comfort

8.3

Entertainment

8.2

Food

8.1

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.

8.3
Very good
1,448 reviews
8.5
Very good
1,034 reviews

Overall

8.5

Comfort

8.3

Entertainment

8.2

Food

8.1

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.

8.3
Very good
465 reviews
8.5
Very good
1,034 reviews

Overall

8.5

Comfort

8.3

Entertainment

8.2

Food

8.1

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.

8.2
Very good
737 reviews
8.5
Very good
1,034 reviews

Overall

8.5

Comfort

8.3

Entertainment

8.2

Food

8.1

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.

8.0
Very good
8,511 reviews
8.5
Very good
1,034 reviews

Overall

8.5

Comfort

8.3

Entertainment

8.2

Food

8.1

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 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?

    $363 is the cheapest one-way deal found within the past few days, from Delta. You may also be able to find cheap deals on American Airlines and United Airlines, with prices starting from $389 and $389, respectively.

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

  • 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 $1,723). 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Ontario to Asia

See prices for flight routes from nearby airports that may be better suited for you.

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 January 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
ZIPAIRCheapest$624Average$770FlexibilityNo cancel feeOn-timeN/A
ANACheapest$677Average$1,040FlexibilityNo cancel feeOn-time80%
Asiana AirlinesCheapest$683Average$793FlexibilityNo cancel feeOn-time76%
Japan AirlinesCheapest$683Average$1,114FlexibilityNo cancel feeOn-time79%
Cathay PacificCheapest$710Average$959FlexibilityNo cancel feeOn-time72%
China AirlinesCheapest$740Average$1,049FlexibilityNo cancel feeOn-time70%
EVA AirCheapest$780Average$1,271FlexibilityNo cancel feeOn-time74%
Korean AirCheapest$785Average$1,004FlexibilityNo cancel feeOn-time81%
United AirlinesCheapest$795Average$1,290FlexibilityNo cancel feeOn-time69%
DeltaCheapest$799Average$997FlexibilityNo cancel feeOn-timeN/A
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