Asia

$412+ 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 7/14. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — BKK
Jun 18 — Jun 251
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Cheap 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 May 19, 2026.

This oojo deal was found by Cheapflights users on 5/18. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/186:02 am
ONT
-
TPE
2 stops37h 23m
Multiple Airlines
Wed 9/3012:25 pm
TPE
-
ONT
2 stops21h 38m
Multiple Airlines
Deal found 5/18$830
This Bravofly deal was found by Cheapflights users on 5/18. 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 Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/212:45 am
ONT
-
TPE
Nonstop13h 20m
China Airlines
Sun 3/79:25 pm
TPE
-
ONT
Nonstop11h 25m
China Airlines
Deal found 5/18$842
This oojo deal was found by Cheapflights users on 5/19. 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.
Thu 10/226:00 am
ONT
-
TPE
2 stops37h 25m
Multiple Airlines
Fri 11/612:55 pm
TPE
-
ONT
2 stops25h 59m
Multiple Airlines
Deal found 5/19$845
This Bravofly deal was found by Cheapflights users on 5/17. 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 Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1112:45 am
ONT
-
TPE
Nonstop13h 20m
China Airlines
Sun 9/139:10 pm
TPE
-
ONT
Nonstop12h 30m
China Airlines
Deal found 5/17$851
This Kiwi.com deal was found by Cheapflights users on 5/15. 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.
Wed 9/169:49 pm
ONT
-
NRT
2 stops30h 11m
Multiple Airlines
Wed 9/239:30 pm
NRT
-
ONT
1 stop32h 30m
Multiple Airlines
Deal found 5/15$855
This SmartFares deal was found by Cheapflights users on 5/14. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1312:10 am
ONT
-
TPE
Nonstop14h 05m
China Airlines
Sat 12/59:25 pm
TPE
-
ONT
Nonstop11h 25m
China Airlines
Deal found 5/14$859
This Kiwi.com deal was found by Cheapflights users on 5/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/208:33 pm
ONT
-
NRT
1 stop26h 52m
Multiple Airlines
Fri 8/2810:30 am
NRT
-
ONT
1 stop23h 22m
Multiple Airlines
Deal found 5/17$875
This Super.com deal was found by Cheapflights users on 5/18. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/212:45 am
ONT
-
TPE
Nonstop13h 20m
China Airlines
Sun 9/139:10 pm
TPE
-
ONT
Nonstop12h 30m
China Airlines
Deal found 5/18$886
This Super.com deal was found by Cheapflights users on 5/16. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/3112:45 am
ONT
-
TPE
Nonstop13h 20m
China Airlines
Tue 9/89:10 pm
TPE
-
ONT
Nonstop12h 30m
China Airlines
Deal found 5/16$887
This Kiwi.com deal was found by Cheapflights users on 5/15. 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.
Thu 9/1011:38 am
ONT
-
NRT
1 stop16h 22m
Multiple Airlines
Wed 9/1611:30 am
NRT
-
ONT
2 stops52h 25m
Multiple Airlines
Deal found 5/15$887
This deal was found by Cheapflights users on 5/16. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2712:10 am
ONT
-
TPE
Nonstop14h 05m
China Airlines
Sat 10/179:10 pm
TPE
-
ONT
Nonstop11h 50m
China Airlines
Deal found 5/16$888
This Super.com deal was found by Cheapflights users on 5/18. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/1412:45 am
ONT
-
TPE
Nonstop13h 20m
China Airlines
Sat 8/229:10 pm
TPE
-
ONT
Nonstop12h 30m
China Airlines
Deal found 5/18$889

Find flight deals from Ontario to Asia

Keep the following information in mind while searching for Ontario to Asia flight deals. Data was last updated May 19, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$830
(oojo)

One-way from

$412
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$943

Good round-trip deal

$965 or less

Good one-way deal

$530 or less
Provider with most accurate pricing for Los Angeles Los Angeles-Manila Ninoy Aquino Intl flight deals.
Provider most trusted by Cheapflights users for Los Angeles Los Angeles-Manila Ninoy Aquino Intl flights.
From Ontario to Asia
One-way flight from Ontario to Asia
Highest demand for flights based on searches. 8% potential increase in price ($82 potential increase over avg. RT price).
Cheapest flight prices on average. 5% potential price decrease ($43 potential savings vs. average RT price).
Average for round-trip flights in May 2026
Price to beat on a round-trip flight from Ontario to Asia.
Price to beat on a one-way flight from Ontario to Asia.

Cheapflights Fare Finder

 
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 May 19, 2026.
Use the filters below to find and compare flights from Ontario to Asia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioTaipei City

ONT - TPE

ONTTPE

Ontario

Mon 10/12

11:55 am-7:55 pm

1 stop17h 00m

Taipei City Taiwan Taoyuan Intl

Wed 10/21

10:00 am-5:17 pm

1 stop22h 17m

$937

OntarioTaipei City

ONT - TPE

ONTTPE

Ontario

Thu 10/8

7:00 am-7:55 pm

1 stop21h 55m

Taipei City Taiwan Taoyuan Intl

Fri 3/12

10:55 am-11:07 am

1 stop16h 12m

$944

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

Sun 10/18

7:00 am-1:05 am

2 stops28h 05m

Bangkok Suvarnabhumi

Mon 11/9

9:30 pm-11:48 pm

2 stops41h 18m

$952

OntarioBangkok

ONT - BKK

ONTBKK

Ontario

Fri 10/16

6:00 am-11:35 pm

2 stops27h 35m

Bangkok Suvarnabhumi

Sat 10/24

9:50 am-11:48 pm

2 stops27h 58m

$952
Quickest round-trip

OntarioTaipei City

ONT - TPE

ONTTPE

Ontario

Sat 10/10

12:10 am-5:15 am

Nonstop14h 05m

Taipei City Taiwan Taoyuan Intl

Wed 10/28

4:30 pm-7:25 pm

1 stop17h 55m

$1,005

OntarioManila

ONT - MNL

ONTMNL

Ontario

Sat 9/12

12:45 am-9:35 am

1 stop17h 50m

Manila Ninoy Aquino Intl

Tue 9/22

4:50 pm-6:00 pm

1 stop16h 10m

$1,008

OntarioManila

ONT - MNL

ONTMNL

Ontario

Tue 9/8

12:45 am-9:35 am

1 stop17h 50m

Manila Ninoy Aquino Intl

Sun 9/27

4:50 pm-6:00 pm

1 stop16h 10m

$1,008

OntarioTaipei City

ONT - TPE

ONTTPE

Ontario

Thu 9/3

6:00 am-6:45 pm

1 stop21h 45m

Taipei City Taiwan Taoyuan Intl

Mon 9/7

9:50 am-12:12 pm

1 stop17h 22m

$1,022

OntarioTaipei City

ONT - TPE

ONTTPE

Ontario

Mon 9/28

11:20 am-6:45 pm

1 stop16h 25m

Taipei City Taiwan Taoyuan Intl

Wed 10/28

2:50 pm-5:47 pm

1 stop17h 57m

$1,022

OntarioManila

ONT - MNL

ONTMNL

Ontario

Sat 11/14

7:00 am-10:25 pm

2 stops23h 25m

Manila Ninoy Aquino Intl

Mon 11/30

11:40 pm-4:12 pm

2 stops32h 32m

$1,030

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/14

Showing 1-10 of 60 resultsSorted by cheapest first
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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.

Cheapflights Insights

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

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

Currently, January is the cheapest month in which you can book a flight from Ontario to Asia (average of $716). Flying from Ontario to Asia in December is currently the most expensive (average of $1,415). 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 May 19, 2026.

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.

How far ahead should I book a flight from Ontario to Asia?

To ensure you get the cheapest price possible for a flight from Ontario to Asia, you should look to book at least 82 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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 May 19, 2026.
Read reviews from past customers who have flown STARLUX Airlines,Korean Air, andChina Airlines from Ontario to Asia. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Boarding

9.0

Overall

8.9

Entertainment

8.8

Crew

9.2

Comfort

8.9

Food

8.7

Reviews

1 / 12
10.0
Excellent

ember j,Apr 2026

TPE - ONT

Amazing how an airline can elevate service by just modernizing structures such as the massage chairs in the boarding areas to the massive airbus with the rolls Royce engines with the electrochromatic windows ! And not to mention the flawless service of the aircrew even with the language difference. I’ll definitely fly with starlux again

Boarding

9.0

Overall

8.9

Entertainment

8.8

Crew

9.2

Comfort

8.9

Food

8.7

Reviews

1 / 12
10.0
Excellent

ember j,Apr 2026

TPE - ONT

Amazing how an airline can elevate service by just modernizing structures such as the massage chairs in the boarding areas to the massive airbus with the rolls Royce engines with the electrochromatic windows ! And not to mention the flawless service of the aircrew even with the language difference. I’ll definitely fly with starlux again

Boarding

9.0

Overall

8.9

Entertainment

8.8

Crew

9.2

Comfort

8.9

Food

8.7

Reviews

1 / 12
10.0
Excellent

ember j,Apr 2026

TPE - ONT

Amazing how an airline can elevate service by just modernizing structures such as the massage chairs in the boarding areas to the massive airbus with the rolls Royce engines with the electrochromatic windows ! And not to mention the flawless service of the aircrew even with the language difference. I’ll definitely fly with starlux again

Boarding

9.0

Overall

8.9

Entertainment

8.8

Crew

9.2

Comfort

8.9

Food

8.7

Reviews

1 / 12
10.0
Excellent

ember j,Apr 2026

TPE - ONT

Amazing how an airline can elevate service by just modernizing structures such as the massage chairs in the boarding areas to the massive airbus with the rolls Royce engines with the electrochromatic windows ! And not to mention the flawless service of the aircrew even with the language difference. I’ll definitely fly with starlux again

Boarding

9.0

Overall

8.9

Entertainment

8.8

Crew

9.2

Comfort

8.9

Food

8.7

Reviews

1 / 12
10.0
Excellent

ember j,Apr 2026

TPE - ONT

Amazing how an airline can elevate service by just modernizing structures such as the massage chairs in the boarding areas to the massive airbus with the rolls Royce engines with the electrochromatic windows ! And not to mention the flawless service of the aircrew even with the language difference. I’ll definitely fly with starlux again

Boarding

9.0

Overall

8.9

Entertainment

8.8

Crew

9.2

Comfort

8.9

Food

8.7

Reviews

1 / 12
10.0
Excellent

ember j,Apr 2026

TPE - ONT

Amazing how an airline can elevate service by just modernizing structures such as the massage chairs in the boarding areas to the massive airbus with the rolls Royce engines with the electrochromatic windows ! And not to mention the flawless service of the aircrew even with the language difference. I’ll definitely fly with starlux again

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.

  • How long is the flight from Ontario to Asia?

    Delta, China Airlines, and United Airlines can get you from Ontario to Asia in just under 17h. Your travel time can differ by up to 4h 45m. Airlines will cover a distance of 6814 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    $291 is the cheapest one-way deal found within the past few days, from Delta. You may also be able to find cheap deals on Korean Air and United Airlines, with prices starting from $316 and $342, 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, January is the cheapest month in which you can book a flight from Ontario to Asia (average of $716). Flying from Ontario to Asia in December is currently the most expensive (average of $1,415). 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 Ontario to Asia

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

Top 8 airlines flying from Ontario to Asia

Discover the top 8 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 May 19, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$457Average$904FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$604Average$1,015FlexibilityNo cancel feeOn-time69%
Korean AirCheapest$616Average$778FlexibilityNo cancel feeOn-time81%
China AirlinesCheapest$645Average$935FlexibilityNo cancel feeOn-time70%
Asiana AirlinesCheapest$647Average$894FlexibilityNo cancel feeOn-time76%
STARLUX AirlinesCheapest$651Average$1,033FlexibilityNo cancel feeOn-timeN/A
Philippine AirlinesCheapest$754Average$1,359FlexibilityNo cancel feeOn-time60%
American AirlinesCheapest$783Average$1,002FlexibilityNo cancel feeOn-time71%

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