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Ontario

$363+ 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 9/28. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — ONT
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
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Cheap 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 July 31, 2025.

Round-trip from

$549
(oojo)

One-way from

$363
(oojo)
From Southeast Asia to Ontario
Search Deals
One-way flight from Southeast Asia to Ontario
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Find 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 July 31, 2025.

This oojo deal was found by Cheapflights users on 7/30. 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.
Wed 10/1510:50 amCEB - ONT
1 stop21h 15mSTARLUX Airlines
Wed 10/2910:45 pmONT - CEB
1 stop28h 50mSTARLUX Airlines
Deal found 7/30$549
This oojo deal was found by Cheapflights users on 7/31. 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.
Sun 11/212:10 pmCEB - ONT
1 stop20h 40mChina Airlines
Sun 3/811:50 pmONT - CEB
1 stop20h 20mChina Airlines
Deal found 7/31$697
This Booking.com deal was found by Cheapflights users on 7/31. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/184:50 pmMNL - ONT
1 stop16h 10mChina Airlines
Wed 10/112:10 amONT - MNL
1 stop18h 25mChina Airlines
Deal found 7/31$709
This oojo deal was found by Cheapflights users on 7/30. 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.
Wed 9/1010:35 amMNL - ONT
1 stop23h 05mMultiple Airlines
Mon 10/67:47 pmONT - MNL
2 stops22h 48mMultiple Airlines
Deal found 7/30$740
This oojo deal was found by Cheapflights users on 7/31. 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 12/195:40 pmBKK - ONT
1 stop37h 10mSTARLUX Airlines
Fri 1/99:45 pmONT - BKK
1 stop27h 45mSTARLUX Airlines
Deal found 7/31$744
This oojo deal was found by Cheapflights users on 7/31. 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 11/411:00 amSGN - ONT
1 stop20h 50mChina Airlines
Sun 11/2310:50 pmONT - SGN
1 stop20h 10mChina Airlines
Deal found 7/31$755
This Trip.com deal was found by Cheapflights users on 7/30. 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.
Fri 9/1912:15 pmCGK - ONT
1 stop18h 50mSTARLUX Airlines
Fri 10/311:10 pmONT - CGK
1 stop22h 05mSTARLUX Airlines
Deal found 7/30$768
This oojo deal was found by Cheapflights users on 7/30. 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 8/196:25 pmSGN - ONT
1 stop37h 15mSTARLUX Airlines
Sat 9/2011:10 pmONT - SGN
1 stop28h 05mSTARLUX Airlines
Deal found 7/30$774
This United Airlines deal was found by Cheapflights users on 7/30. 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 9/108:40 amMNL - ONT
2 stops47h 49mUnited Airlines
Mon 10/65:05 amONT - MNL
2 stops33h 50mUnited Airlines
Deal found 7/30$785
This oojo deal was found by Cheapflights users on 7/31. 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 11/1811:35 amHAN - ONT
1 stop20h 15mChina Airlines
Mon 11/2410:50 pmONT - HAN
1 stop26h 40mChina Airlines
Deal found 7/31$825
This Mytrip deal was found by Cheapflights users on 7/31. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/2611:30 amHAN - ONT
1 stop19h 20mSTARLUX Airlines
Sat 1/39:45 pmONT - HAN
1 stop21h 45mSTARLUX Airlines
Deal found 7/31$846
This China Airlines deal was found by Cheapflights users on 7/31. 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.
Thu 12/182:35 amBKK - ONT
1 stop29h 15mChina Airlines
Fri 1/910:50 pmONT - BKK
1 stop20h 00mChina Airlines
Deal found 7/31$849

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 July 31, 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

Cebu CityOntario

CEB - ONT

CEBONT

Cebu City Mactan Intl

Wed 10/15

10:50 am-5:05 pm

1 stop21h 15m

Ontario

Wed 10/29

10:45 pm-6:35 pm

1 stop28h 50m

$549

Cebu CityOntario

CEB - ONT

CEBONT

Cebu City Mactan Intl

Sun 11/2

12:10 pm-5:50 pm

1 stop20h 40m

Ontario

Sun 3/8

11:50 pm-11:10 am

1 stop20h 20m

$697

ManilaOntario

MNL - ONT

MNLONT

Manila Ninoy Aquino Intl

Thu 9/18

4:50 pm-6:00 pm

1 stop16h 10m

Ontario

Wed 10/1

12:10 am-9:35 am

1 stop18h 25m

$709

ManilaOntario

MNL - ONT

MNLONT

Manila Ninoy Aquino Intl

Wed 9/10

10:35 am-6:40 pm

1 stop23h 05m

Ontario

Mon 10/6

7:47 pm-9:35 am

2 stops22h 48m

$740

BangkokOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

Fri 12/19

5:40 pm-3:50 pm

1 stop37h 10m

Ontario

Fri 1/9

9:45 pm-4:30 pm

1 stop27h 45m

$744

Cebu CityOntario

CEB - ONT

CEBONT

Cebu City Mactan Intl

Thu 1/22

3:35 am-4:50 pm

2 stops29h 15m

Ontario

Sat 3/21

11:50 pm-5:05 pm

2 stops26h 15m

$755

Ho Chi Minh CityOntario

SGN - ONT

SGNONT

Ho Chi Minh City

Tue 11/4

11:00 am-4:50 pm

1 stop20h 50m

Ontario

Sun 11/23

10:50 pm-10:00 am

1 stop20h 10m

$755

Ho Chi Minh CityOntario

SGN - ONT

SGNONT

Ho Chi Minh City

Sat 9/20

11:30 am-5:05 pm

1 stop19h 35m

Ontario

Sat 10/25

11:10 pm-10:30 am

1 stop21h 20m

$768

JakartaOntario

CGK - ONT

CGKONT

Jakarta Soekarno-Hatta Intl

Fri 9/19

12:15 pm-5:05 pm

1 stop18h 50m

Ontario

Fri 10/3

11:10 pm-11:15 am

1 stop22h 05m

$768

ManilaOntario

MNL - ONT

MNLONT

Manila Ninoy Aquino Intl

Wed 9/10

8:40 am-5:29 pm

2 stops47h 49m

Ontario

Mon 10/6

5:05 am-5:55 am

2 stops33h 50m

$785

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

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, August is the cheapest month in which you can book a flight from Southeast Asia to Ontario (average of $246). Flying from Southeast 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 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 July 31, 2025.

When flying from Southeast Asia to Ontario, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 July 31, 2025.
See what other customers who have flown with STARLUX Airlines, EVA Air, and Korean Air 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
9.0
Wonderful
199 reviews

Food

8.8

Entertainment

8.9

Comfort

8.9

Boarding

9.0

Crew

9.3

Overall

9.0

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
STARLUX Airlines
9.0
Wonderful
199 reviews
STARLUX Airlines
9.0
Wonderful
199 reviews

Food

8.8

Entertainment

8.9

Comfort

8.9

Boarding

9.0

Crew

9.3

Overall

9.0

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
EVA Air
8.4
Very good
1,220 reviews
STARLUX Airlines
9.0
Wonderful
199 reviews

Food

8.8

Entertainment

8.9

Comfort

8.9

Boarding

9.0

Crew

9.3

Overall

9.0

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
Korean Air
8.4
Very good
1,121 reviews
STARLUX Airlines
9.0
Wonderful
199 reviews

Food

8.8

Entertainment

8.9

Comfort

8.9

Boarding

9.0

Crew

9.3

Overall

9.0

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
Japan Airlines
8.3
Very good
1,536 reviews
STARLUX Airlines
9.0
Wonderful
199 reviews

Food

8.8

Entertainment

8.9

Comfort

8.9

Boarding

9.0

Crew

9.3

Overall

9.0

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
China Airlines
8.3
Very good
754 reviews
STARLUX Airlines
9.0
Wonderful
199 reviews

Food

8.8

Entertainment

8.9

Comfort

8.9

Boarding

9.0

Crew

9.3

Overall

9.0

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.

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.

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

    The cheapest airline one-way is STARLUX Airlines, with whom users have recently found tickets for as low as $363. However, be on the lookout for offers from China Airlines and United Airlines, as they are both options that can get you from Southeast Asia to Ontario for a low price.

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

    The most popular flight routes from Southeast Asia to Ontario are Manila Ninoy Aquino Intl - Ontario, Ho Chi Minh City - Ontario and Bangkok Suvarnabhumi - 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, August is the cheapest month in which you can book a flight from Southeast Asia to Ontario (average of $246). Flying from Southeast 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 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 July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
China AirlinesCheapest$708Average$876FlexibilityNo cancel feeOn-time70%
STARLUX AirlinesCheapest$774Average$780FlexibilityNo cancel feeOn-timeN/A

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