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$325+ 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 3/3. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — ICN
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
1 adult, Economy
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Cheap flight deals from Ontario to Asia

Keep the following information in mind while searching for Ontario to Asia flight deals. Data was last updated February 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$696
(Delta)

One-way from

$325
(Trip.com)

Popular in

December

Cheapest in

February

Average price

$864

Good round-trip deal

$837 or less

Good one-way deal

$491 or less
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From Ontario to Asia
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One-way flight from Ontario to Asia
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Highest demand for flights based on searches. 7% potential increase in price ($81 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($51 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Price to beat on a round-trip flight from Ontario to Asia.
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Price to beat on a 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 February 20, 2025.

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 4/225:45 amONT - HND
1 stop16h 15mDelta
Thu 5/154:05 pmHND - ONT
1 stop13h 08mDelta
Deal found 2/20$696
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/311:59 pmONT - HND
1 stop23h 56mAmerican Airlines
Sun 9/145:00 pmHND - ONT
2 stops20h 40mAmerican Airlines
Deal found 2/20$699
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/256:15 amONT - NRT
2 stops18h 30mAmerican Airlines
Mon 5/55:20 pmNRT - ONT
2 stops17h 03mAmerican Airlines
Deal found 2/20$701
This Kiwi.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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/248:26 amONT - NRT
1 stop18h 29mMultiple Airlines
Wed 2/269:25 pmNRT - ONT
1 stop29h 09mMultiple Airlines
Deal found 2/20$708
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 3/36:00 amONT - NRT
1 stop16h 40mJapan Airlines
Thu 3/136:10 pmNRT - ONT
1 stop16h 09mJapan Airlines
Deal found 2/20$729
This Delta deal was found by Cheapflights users on 2/19. 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.
Sun 3/235:40 amONT - BKK
2 stops25h 50mDelta
Tue 5/2711:30 pmBKK - ONT
2 stops31h 44mDelta
Deal found 2/19$737
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/45:45 amONT - HND
2 stops45h 15mUnited Airlines
Sun 9/144:00 pmHND - ONT
2 stops42h 00mUnited Airlines
Deal found 2/20$751
This United Airlines deal was found by Cheapflights users on 2/19. 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 2/266:00 amONT - KIX
1 stop17h 35mUnited Airlines
Sat 3/86:30 pmKIX - ONT
1 stop16h 34mUnited Airlines
Deal found 2/19$753
This United Airlines deal was found by Cheapflights users on 2/19. 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 3/25:05 amONT - NRT
1 stop17h 40mUnited Airlines
Sun 3/94:50 pmNRT - ONT
1 stop21h 55mUnited Airlines
Deal found 2/19$753
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.
Mon 3/176:00 amONT - TPE
2 stops23h 05mDelta
Tue 3/259:45 amTPE - ONT
2 stops29h 11mDelta
Deal found 2/20$759
This oojo deal was found by Cheapflights users on 2/19. 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 4/1512:10 amONT - MNL
1 stop24h 40mChina Airlines
Wed 5/74:50 pmMNL - ONT
1 stop16h 10mChina Airlines
Deal found 2/19$768
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.
Sun 3/26:00 amONT - SGN
2 stops26h 20mDelta
Tue 4/111:45 pmSGN - ONT
2 stops36h 37mDelta
Deal found 2/20$805

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 February 20, 2025.

Fly from

Ontario

Fly to

Asia

Route

Depart

Return

Price

OntarioTokyo

ONT - HND

ONTHND

Ontario

Tue 4/22

5:45 am-2:00 pm

1 stop16h 15m

Tokyo Haneda

Thu 5/15

4:05 pm-1:13 pm

1 stop13h 08m

$696

OntarioTokyo

ONT - NRT

ONTNRT

Ontario

Fri 4/25

6:15 am-4:45 pm

2 stops18h 30m

Tokyo Narita

Mon 5/5

5:20 pm-6:23 pm

2 stops17h 03m

$701

OntarioTokyo

ONT - NRT

ONTNRT

Ontario

Mon 3/3

6:00 am-3:40 pm

1 stop16h 40m

Tokyo Narita

Thu 3/13

6:10 pm-6:19 pm

1 stop16h 09m

$729

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

Sun 3/23

5:40 am-9:30 pm

2 stops25h 50m

Bangkok Suvarnabhumi

Mon 5/26

11:30 pm-10:40 pm

2 stops37h 10m

$737

OntarioTokyo

ONT - HND

ONTHND

Ontario

Wed 3/5

7:40 pm-4:40 am

1 stop16h 00m

Tokyo Haneda

Fri 3/14

4:25 pm-10:45 pm

1 stop22h 20m

$752

OntarioOsaka

ONT - KIX

ONTKIX

Ontario

Wed 2/26

6:00 am-4:35 pm

1 stop17h 35m

Osaka Kansai Intl

Sat 3/8

6:30 pm-6:04 pm

1 stop16h 34m

$753

OntarioTokyo

ONT - NRT

ONTNRT

Ontario

Sun 3/2

5:05 am-3:45 pm

1 stop17h 40m

Tokyo Narita

Sun 3/9

4:50 pm-9:45 pm

1 stop21h 55m

$753

OntarioTaipei City

ONT - TPE

ONTTPE

Ontario

Mon 3/17

5:15 pm-8:05 pm

2 stops35h 50m

Taipei City Taiwan Taoyuan Intl

Mon 3/24

9:45 am-11:56 pm

2 stops29h 11m

$759

OntarioManila

ONT - MNL

ONTMNL

Ontario

Tue 4/15

12:10 am-3:50 pm

1 stop24h 40m

Manila Ninoy Aquino Intl

Wed 5/7

4:50 pm-6:00 pm

1 stop16h 10m

$768

OntarioHo Chi Minh City

ONT - SGN

ONTSGN

Ontario

Sun 3/2

6:00 am-11:20 pm

2 stops26h 20m

Ho Chi Minh City

Tue 4/1

11:45 pm-10:22 pm

2 stops36h 37m

$805

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Showing 1-10 of 60 results
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6

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, February is the cheapest month in which you can book a flight from Ontario to Asia (average of $1,036). Flying from Ontario to Asia 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 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 February 20, 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 February 20, 2025.
STARLUX Airlines
9.1
Wonderful
140 reviews

Food

9.0

Crew

9.3

Entertainment

9.1

Boarding

9.1

Comfort

9.0

Overall

9.1

Reviews

1 / 5

10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.

STARLUX Airlines
9.1
Wonderful
140 reviews
STARLUX Airlines
9.1
Wonderful
140 reviews

Food

9.0

Crew

9.3

Entertainment

9.1

Boarding

9.1

Comfort

9.0

Overall

9.1

Reviews

1 / 5

10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.

Korean Air
8.4
Very good
1,037 reviews
STARLUX Airlines
9.1
Wonderful
140 reviews

Food

9.0

Crew

9.3

Entertainment

9.1

Boarding

9.1

Comfort

9.0

Overall

9.1

Reviews

1 / 5

10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.

Japan Airlines
8.3
Very good
1,440 reviews
STARLUX Airlines
9.1
Wonderful
140 reviews

Food

9.0

Crew

9.3

Entertainment

9.1

Boarding

9.1

Comfort

9.0

Overall

9.1

Reviews

1 / 5

10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.

China Airlines
8.2
Very good
727 reviews
STARLUX Airlines
9.1
Wonderful
140 reviews

Food

9.0

Crew

9.3

Entertainment

9.1

Boarding

9.1

Comfort

9.0

Overall

9.1

Reviews

1 / 5

10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.

Delta
8.0
Very good
8,219 reviews
STARLUX Airlines
9.1
Wonderful
140 reviews

Food

9.0

Crew

9.3

Entertainment

9.1

Boarding

9.1

Comfort

9.0

Overall

9.1

Reviews

1 / 5

10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.

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?

    $376 is the cheapest one-way deal found within the past few days, from Japan Airlines. You may also be able to find cheap deals on Delta and United Airlines, with prices starting from $382 and $397, 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 - Bangkok Suvarnabhumi.

  • 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, February is the cheapest month in which you can book a flight from Ontario to Asia (average of $1,036). Flying from Ontario to Asia 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

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See prices for flight routes from nearby airports that may be better suited for you.
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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 February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
ZIPAIRCheapest$624Average$770FlexibilityNo cancel feeOn-timeN/A
ANACheapest$677Average$1,049FlexibilityNo cancel feeOn-time80%
Japan AirlinesCheapest$683Average$1,068FlexibilityNo cancel feeOn-time79%
Cathay PacificCheapest$710Average$993FlexibilityNo cancel feeOn-time72%
China AirlinesCheapest$740Average$1,035FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$770Average$1,226FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$779Average$1,165FlexibilityNo cancel feeOn-time71%
EVA AirCheapest$780Average$1,271FlexibilityNo cancel feeOn-time74%
Korean AirCheapest$785Average$1,017FlexibilityNo cancel feeOn-time81%
DeltaCheapest$799Average$1,075FlexibilityNo cancel feeOn-timeN/A
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