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Ontario

$351+ Cheap flights from Southeast 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 3/4. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — ONT
Jan 22 — Jan 291
Thu 1/22
Thu 1/29
1 adult, Economy
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Cheap flight deals from Southeast Asia to Ontario

Cheapest flights from Southeast Asia to Ontario
Explore the most affordable flight options available from Southeast Asia to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 23, 2025.

This China Airlines deal was found by Cheapflights users on 12/21. 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.
Mon 12/224:55 pmMNL - ONT
1 stop15h 55mChina Airlines
Sat 2/710:50 pmONT - MNL
1 stop35h 40mChina Airlines
Deal found 12/21$752
This Trip.com deal was found by Cheapflights users on 12/22. 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.
Thu 12/2511:00 amSGN - ONT
1 stop20h 50mChina Airlines
Thu 1/110:50 pmONT - SGN
1 stop20h 10mChina Airlines
Deal found 12/22$815
This iWofly deal was found by Cheapflights users on 12/20. 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 iWofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2711:50 amMNL - ONT
1 stop20h 00mSTARLUX Airlines
Wed 12/319:45 pmONT - MNL
1 stop21h 20mSTARLUX Airlines
Deal found 12/20$838
This China Airlines deal was found by Cheapflights users on 12/22. 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.
Wed 12/2411:00 amSGN - ONT
1 stop20h 50mChina Airlines
Thu 1/110:50 pmONT - SGN
1 stop27h 00mChina Airlines
Deal found 12/22$865
This oojo deal was found by Cheapflights users on 12/20. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/254:55 pmMNL - ONT
1 stop15h 55mChina Airlines
Mon 1/2611:53 amONT - MNL
2 stops30h 02mChina Airlines
Deal found 12/20$865
This United Airlines deal was found by Cheapflights users on 12/20. 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 12/2511:25 pmMNL - ONT
1 stop26h 36mUnited Airlines
Thu 1/291:24 pmONT - MNL
2 stops63h 36mUnited Airlines
Deal found 12/20$872
This China Airlines deal was found by Cheapflights users on 12/20. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/284:55 pmMNL - ONT
1 stop15h 55mChina Airlines
Sun 3/110:50 pmONT - MNL
1 stop19h 05mChina Airlines
Deal found 12/20$887
This United Airlines deal was found by Cheapflights users on 12/21. 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 12/289:55 amMNL - ONT
1 stop23h 48mUnited Airlines
Sun 3/11:50 pmONT - MNL
1 stop25h 00mUnited Airlines
Deal found 12/21$897
This United Airlines deal was found by Cheapflights users on 12/22. 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 12/236:00 amSGN - ONT
2 stops51h 10mUnited Airlines
Sat 2/286:10 amONT - SGN
2 stops27h 05mUnited Airlines
Deal found 12/22$908
This China Airlines deal was found by Cheapflights users on 12/21. 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 12/2311:35 amHAN - ONT
1 stop20h 15mChina Airlines
Sun 1/1810:50 pmONT - HAN
1 stop20h 45mChina Airlines
Deal found 12/21$917
This United Airlines deal was found by Cheapflights users on 12/21. 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.
Fri 12/264:55 pmBKK - ONT
2 stops44h 46mUnited Airlines
Thu 1/16:39 pmONT - BKK
2 stops49h 46mUnited Airlines
Deal found 12/21$943
This United Airlines deal was found by Cheapflights users on 12/20. 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.
Sat 12/2711:25 pmMNL - ONT
2 stops37h 42mUnited Airlines
Tue 1/275:05 amONT - MNL
2 stops33h 45mUnited Airlines
Deal found 12/20$947

Find flight deals from Southeast Asia to Ontario

Keep the following information in mind while searching for Southeast Asia to Ontario flight deals. Data was last updated December 23, 2025.

Round-trip from

$548
(oojo)

One-way from

$351
(Kiwi.com)
From Southeast Asia to Ontario
Search Deals
One-way flight from Southeast Asia to Ontario
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Southeast 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 December 23, 2025.
Use the filters below to find and compare flights from Southeast Asia to Ontario that are best for you.

Fly from

Southeast Asia

Fly to

Ontario

Route

Depart

Return

Price

ManilaOntario

MNL - ONT

MNLONT

Manila Ninoy Aquino Intl

Mon 2/2

11:50 am-3:50 pm

1 stop20h 00m

Ontario

Mon 2/16

9:45 pm-11:05 am

1 stop21h 20m

$549

Cebu CityOntario

CEB - ONT

CEBONT

Cebu City Mactan Intl

Tue 3/10

7:35 pm-4:50 pm

1 stop36h 15m

Ontario

Sat 3/14

10:45 pm-9:50 am

1 stop20h 05m

$572

Angeles CityOntario

CRK - ONT

CRKONT

Angeles City Clark Intl

Mon 2/9

10:00 am-3:50 pm

1 stop21h 50m

Ontario

Wed 2/25

9:45 pm-9:00 am

1 stop19h 15m

$617

Cebu CityOntario

CEB - ONT

CEBONT

Cebu City Mactan Intl

Mon 2/23

10:50 am-3:50 pm

1 stop21h 00m

Ontario

Sat 8/1

11:45 pm-9:50 am

1 stop19h 05m

$635

Cebu CityOntario

CEB - ONT

CEBONT

Cebu City Mactan Intl

Wed 4/15

10:50 am-5:05 pm

1 stop21h 15m

Ontario

Wed 5/13

11:10 pm-7:05 pm

1 stop28h 55m

$635

ManilaOntario

MNL - ONT

MNLONT

Manila Ninoy Aquino Intl

Mon 2/2

4:55 pm-4:50 pm

1 stop15h 55m

Ontario

Mon 2/16

10:50 pm-3:55 pm

1 stop25h 05m

$672

ManilaOntario

MNL - ONT

MNLONT

Manila Ninoy Aquino Intl

Wed 1/21

10:55 am-4:50 pm

1 stop21h 55m

Ontario

Sun 1/25

10:50 pm-3:55 pm

1 stop25h 05m

$673

Cebu CityOntario

CEB - ONT

CEBONT

Cebu City Mactan Intl

Thu 3/12

12:10 pm-5:50 pm

1 stop20h 40m

Ontario

Thu 3/12

11:50 pm-11:10 am

1 stop20h 20m

$691

BangkokOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

Wed 6/10

1:10 pm-5:05 pm

1 stop17h 55m

Ontario

Wed 6/24

11:10 pm-12:00 pm

1 stop22h 50m

$707

ManilaOntario

MNL - ONT

MNLONT

Manila Ninoy Aquino Intl

Tue 3/3

10:55 am-4:50 pm

1 stop21h 55m

Ontario

Tue 4/7

12:10 am-3:50 pm

1 stop24h 40m

$709

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/20

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

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

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

Currently, March is the cheapest month in which you can book a flight from Southeast Asia to Ontario (average of $524). Flying from Southeast Asia to Ontario in January is currently the most expensive (average of $669). 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 YJX to ONT?

Find hourly flight availability from Southeast 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 December 23, 2025.

One of the essential ways to save on airfare from Southeast Asia to Ontario is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the afternoon could potentially save you up to 18% on airfare.

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 December 23, 2025.
See what other customers who have flown with STARLUX Airlines and China Airlines from Southeast Asia to Ontario have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
STARLUX Airlines
8.9
Very good
248 reviews

Overall

8.9

Crew

9.1

Food

8.7

Boarding

8.9

Entertainment

8.8

Comfort

8.8

Reviews

1 / 9
10.0
Excellent

Chad,Nov 2025

TPE - SEA

Starlux Airlines was amazing. No complaints on anything with them
STARLUX Airlines
8.9
Very good
248 reviews
STARLUX Airlines
8.9
Very good
248 reviews

Overall

8.9

Crew

9.1

Food

8.7

Boarding

8.9

Entertainment

8.8

Comfort

8.8

Reviews

1 / 9
10.0
Excellent

Chad,Nov 2025

TPE - SEA

Starlux Airlines was amazing. No complaints on anything with them
China Airlines
8.3
Very good
792 reviews
STARLUX Airlines
8.9
Very good
248 reviews

Overall

8.9

Crew

9.1

Food

8.7

Boarding

8.9

Entertainment

8.8

Comfort

8.8

Reviews

1 / 9
10.0
Excellent

Chad,Nov 2025

TPE - SEA

Starlux Airlines was amazing. No complaints on anything with them

Related info for your journey

Find useful and relevant information for your journey from Southeast 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 Southeast Asia?

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

  • How long is the flight from Southeast Asia to Ontario?

    For as low as $672, STARLUX Airlines can have you in Ontario from Southeast Asia in 15h 55m. Southeast Asia and Ontario are separated by a distance of 7327 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    The most popular flight routes from Southeast Asia to Ontario are Bangkok Suvarnabhumi - Ontario, Manila Ninoy Aquino Intl - Ontario and Ho Chi Minh City - Ontario.

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

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

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

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

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

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

    Currently, March is the cheapest month in which you can book a flight from Southeast Asia to Ontario (average of $524). Flying from Southeast Asia to Ontario in January is currently the most expensive (average of $669). 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 Southeast 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 Southeast Asia to Ontario

Discover the top 2 airlines that operate flights from Southeast 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 December 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
STARLUX AirlinesCheapest$339Average$878FlexibilityNo cancel feeOn-timeN/A
China AirlinesCheapest$683Average$841FlexibilityNo cancel feeOn-time70%

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