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$296+ Cheap flights from Asia 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 5/14. Fares are subject to change and may not be available on all flights or dates of travel.
ICN — ONT
Apr 22 — Apr 291
Tue 4/22
Tue 4/29
1 adult, Economy
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Cheap flight deals from Asia to Ontario

Keep the following information in mind while searching for Asia to Ontario flight deals. Data was last updated April 17, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$516
(United Airlines)

One-way from

$296
(Trip.com)

Popular in

July

Cheapest in

March

Average price

$796

Good round-trip deal

$874 or less

Good one-way deal

$585 or less
Provider with most accurate pricing for Manila Ninoy Aquino Intl-Los Angeles flight deals.
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Provider most trusted by Cheapflights users for Manila Ninoy Aquino Intl-Los Angeles flights.
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From Asia to Ontario
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One-way flight from Asia to Ontario
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Highest demand for flights based on searches. 17% potential increase in price ($188 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($26 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Price to beat on a round-trip flight from Asia to Ontario.
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Price to beat on a one-way flight from Asia to Ontario.
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Find flight deals from Asia to Ontario

Cheapest flights from Asia to Ontario
Explore the most affordable flight options available from Asia to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 17, 2025.

This United Airlines deal was found by Cheapflights users on 4/16. 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.
Sat 4/1911:30 amICN - ONT
2 stops25h 12mUnited Airlines
Fri 7/185:05 amONT - ICN
2 stops31h 15mUnited Airlines
Deal found 4/16$516
This United Airlines deal was found by Cheapflights users on 4/16. 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 5/289:50 amTPE - ONT
1 stop17h 24mUnited Airlines
Wed 9/1010:00 amONT - TPE
1 stop17h 45mUnited Airlines
Deal found 4/16$688
This Kiwi.com deal was found by Cheapflights users on 4/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/19:30 pmNRT - ONT
1 stop28h 32mMultiple Airlines
Sat 5/108:24 amONT - NRT
1 stop19h 36mMultiple Airlines
Deal found 4/16$705
This iWofly deal was found by Cheapflights users on 4/17. 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 iWofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/64:50 pmMNL - ONT
1 stop16h 10mChina Airlines
Thu 10/3011:45 pmONT - MNL
1 stop25h 10mChina Airlines
Deal found 4/17$740
This Jettzy deal was found by Cheapflights users on 4/16. 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 Jettzy is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/178:10 pmHKG - ONT
1 stop36h 50mChina Airlines
Tue 10/712:10 amONT - HKG
1 stop18h 05mChina Airlines
Deal found 4/16$747
This oojo deal was found by Cheapflights users on 4/17. 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.
Fri 9/2610:50 amSGN - ONT
1 stop21h 10mChina Airlines
Fri 10/2412:10 amONT - SGN
1 stop19h 50mChina Airlines
Deal found 4/17$751
This Gotogate deal was found by Cheapflights users on 4/16. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/1411:20 amHKG - ONT
1 stop20h 45mSTARLUX Airlines
Mon 6/3011:10 pmONT - HKG
1 stop19h 45mSTARLUX Airlines
Deal found 4/16$768
This Gotogate deal was found by Cheapflights users on 4/16. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1311:30 amSGN - ONT
1 stop19h 35mSTARLUX Airlines
Mon 10/1311:10 pmONT - SGN
1 stop28h 05mSTARLUX Airlines
Deal found 4/16$775
This ezTravel 易遊網 deal was found by Cheapflights users on 4/16. 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 ezTravel 易遊網 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/88:05 pmTPE - ONT
Nonstop12h 00mSTARLUX Airlines
Mon 9/2211:10 pmONT - TPE
Nonstop14h 05mSTARLUX Airlines
Deal found 4/16$793
This United Airlines deal was found by Cheapflights users on 4/16. 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.
Mon 4/2111:15 amHKG - ONT
1 stop18h 35mUnited Airlines
Sun 5/46:00 amONT - HKG
1 stop21h 55mUnited Airlines
Deal found 4/16$832
This Gotogate deal was found by Cheapflights users on 4/17. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/65:50 pmBKK - ONT
1 stop37h 15mSTARLUX Airlines
Mon 6/1611:10 pmONT - BKK
1 stop27h 30mSTARLUX Airlines
Deal found 4/17$846
This LionTravel deal was found by Cheapflights users on 4/16. 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 LionTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/189:10 pmTPE - ONT
Nonstop11h 50mChina Airlines
Fri 8/2212:45 amONT - TPE
Nonstop13h 30mChina Airlines
Deal found 4/16$856

Cheapflights Fare Finder

Customize your flight search to find flights from Asia 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 2,558,603 searches. Data last updated April 17, 2025.
Use the filters below to find and compare flights from Asia to Ontario that are best for you.

Fly from

Asia

Fly to

Ontario

Route

Depart

Return

Price

IncheonOntario

ICN - ONT

ICNONT

Incheon Intl

Wed 5/7

11:30 am-3:09 pm

2 stops19h 39m

Ontario

Sun 5/11

4:15 pm-3:00 pm

2 stops30h 45m

$516

Taipei CityOntario

TPE - ONT

TPEONT

Taipei City Taiwan Taoyuan Intl

Wed 5/28

9:50 am-12:14 pm

1 stop17h 24m

Ontario

Mon 8/4

5:05 am-6:45 pm

2 stops22h 40m

$688

TokyoOntario

NRT - ONT

NRTONT

Tokyo Narita

Thu 5/1

9:30 pm-10:02 am

1 stop28h 32m

Ontario

Sat 5/10

8:24 am-8:00 pm

1 stop19h 36m

$705

ManilaOntario

MNL - ONT

MNLONT

Manila Ninoy Aquino Intl

Fri 6/6

4:50 pm-6:00 pm

1 stop16h 10m

Ontario

Thu 10/30

11:45 pm-3:55 pm

1 stop25h 10m

$740

Hong KongOntario

HKG - ONT

HKGONT

Hong Kong Intl

Wed 9/17

8:10 pm-6:00 pm

1 stop36h 50m

Ontario

Tue 10/7

12:10 am-9:15 am

1 stop18h 05m

$747

Ho Chi Minh CityOntario

SGN - ONT

SGNONT

Ho Chi Minh City

Fri 9/26

10:50 am-6:00 pm

1 stop21h 10m

Ontario

Fri 10/24

12:10 am-10:00 am

1 stop19h 50m

$751

Hong KongOntario

HKG - ONT

HKGONT

Hong Kong Intl

Sat 6/14

11:20 am-5:05 pm

1 stop20h 45m

Ontario

Mon 6/30

11:10 pm-9:55 am

1 stop19h 45m

$768

Ho Chi Minh CityOntario

SGN - ONT

SGNONT

Ho Chi Minh City

Mon 10/13

11:30 am-5:05 pm

1 stop19h 35m

Ontario

Mon 10/13

11:10 pm-5:15 pm

1 stop28h 05m

$775

Taipei CityOntario

TPE - ONT

TPEONT

Taipei City Taiwan Taoyuan Intl

Mon 9/8

8:05 pm-5:05 pm

Nonstop12h 00m

Ontario

Mon 9/22

11:10 pm-4:15 am

Nonstop14h 05m

$793

Hong KongOntario

HKG - ONT

HKGONT

Hong Kong Intl

Tue 9/16

10:30 pm-10:53 pm

1 stop15h 23m

Ontario

Thu 10/16

6:38 pm-6:55 pm

2 stops33h 17m

$835

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/16

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

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

Cheapflights Insights

Everything you need to know about your flight from Asia to Ontario

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

Currently, August is the cheapest month in which you can book a flight from Asia to Ontario (average of $246). Flying from Asia to Ontario in March is currently the most expensive (average of $328). 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 AS to ONT?

Find hourly flight availability from Asia 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 April 17, 2025.

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

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 April 17, 2025.
STARLUX Airlines
9.1
Wonderful
154 reviews

Boarding

9.0

Crew

9.3

Food

8.9

Entertainment

9.0

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
154 reviews
STARLUX Airlines
9.1
Wonderful
154 reviews

Boarding

9.0

Crew

9.3

Food

8.9

Entertainment

9.0

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.
EVA Air
8.4
Very good
1,177 reviews
STARLUX Airlines
9.1
Wonderful
154 reviews

Boarding

9.0

Crew

9.3

Food

8.9

Entertainment

9.0

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
1,064 reviews
STARLUX Airlines
9.1
Wonderful
154 reviews

Boarding

9.0

Crew

9.3

Food

8.9

Entertainment

9.0

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
154 reviews

Boarding

9.0

Crew

9.3

Food

8.9

Entertainment

9.0

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
729 reviews
STARLUX Airlines
9.1
Wonderful
154 reviews

Boarding

9.0

Crew

9.3

Food

8.9

Entertainment

9.0

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 Asia 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 Asia?

    Located just 3.1 mi from the city center, Ontario (ONT) is the airport most travelers will use when flying to Ontario from Asia.

  • What are the cheapest airlines to fly from Asia to Ontario one-way?

    $452 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 STARLUX Airlines, with prices starting from $453 and $469, respectively.

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

    When deciding which route to take from Asia to Ontario consider Tokyo Narita - Ontario, Tokyo Haneda - Ontario or Manila Ninoy Aquino Intl - Ontario as they are the most popular.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Asia 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.

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

    Currently, August is the cheapest month in which you can book a flight from Asia to Ontario (average of $246). Flying from Asia to Ontario in March is currently the most expensive (average of $328). 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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Alternative routes for Asia to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Asia to Ontario

Discover the top 2 airlines that operate flights from Asia 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 2,558,603 searches. Data last updated April 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$596Average$755FlexibilityNo cancel feeOn-time69%
China AirlinesCheapest$735Average$971FlexibilityNo cancel feeOn-time70%

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