Ontario

$429+ 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 12/12. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — ONT
Nov 19 — Nov 261
1 adult
Tue 11/19
Tue 11/26
We work with more than 300 partners to bring you better travel deals

...and more

Find cheap flights from Southeast Asia to Ontario with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Southeast Asia to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Southeast Asia (zzYJX) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 14, 2024.

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 November 14, 2024.

This Gotogate deal was found by Cheapflights users on 11/14. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/2310:55 amMNL - ONT
1 stop21h 55mChina Airlines
Mon 12/910:45 pmONT - MNL
1 stop19h 10mChina Airlines
Deal found 11/14$772
This Trip.com deal was found by Cheapflights users on 11/13. 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 11/212:35 amBKK - ONT
1 stop29h 15mChina Airlines
Tue 12/310:45 pmONT - BKK
1 stop23h 20mChina Airlines
Deal found 11/13$798
This China Airlines deal was found by Cheapflights users on 11/13. 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.
Fri 11/1511:00 amSGN - ONT
1 stop20h 50mChina Airlines
Wed 12/1110:45 pmONT - SGN
1 stop27h 05mChina Airlines
Deal found 11/13$888
This Gotogate deal was found by Cheapflights users on 11/14. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/52:00 amSIN - ONT
1 stop30h 50mChina Airlines
Mon 12/910:45 pmONT - SIN
1 stop33h 55mChina Airlines
Deal found 11/14$897
This Gotogate deal was found by Cheapflights users on 11/13. 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 11/182:35 pmKUL - ONT
1 stop18h 15mChina Airlines
Sun 12/110:45 pmONT - KUL
1 stop22h 30mChina Airlines
Deal found 11/13$948
This FlightHub deal was found by Cheapflights users on 11/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/2312:05 pmCEB - ONT
1 stop20h 45mChina Airlines
Tue 12/2410:45 pmONT - CEB
1 stop20h 20mChina Airlines
Deal found 11/14$959
This EVA Air deal was found by Cheapflights users on 11/14. 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 EVA Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/76:50 pmMNL - ONT
2 stops31h 03mMultiple Airlines
Mon 12/96:00 amONT - MNL
2 stops24h 50mMultiple Airlines
Deal found 11/14$972
This United Airlines deal was found by Cheapflights users on 11/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/2310:10 amSIN - ONT
1 stop20h 24mUnited Airlines
Fri 12/66:00 amONT - SIN
1 stop22h 15mUnited Airlines
Deal found 11/14$1,010
This United Airlines deal was found by Cheapflights users on 11/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/286:20 amCGK - ONT
2 stops21h 40mUnited Airlines
Thu 12/56:28 pmONT - CGK
2 stops38h 27mUnited Airlines
Deal found 11/14$1,035
This United Airlines deal was found by Cheapflights users on 11/12. 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 11/277:30 amSGN - ONT
2 stops20h 30mUnited Airlines
Sun 12/16:00 amONT - SGN
2 stops27h 15mUnited Airlines
Deal found 11/12$1,072
This United deal was found by Cheapflights users on 11/14. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/276:20 amCGK - ONT
2 stops29h 24mMultiple Airlines
Wed 12/116:00 amONT - CGK
2 stops26h 55mMultiple Airlines
Deal found 11/14$1,083
This Japan Airlines deal was found by Cheapflights users on 11/14. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/232:20 amSIN - ONT
2 stops32h 13mMultiple Airlines
Mon 1/136:00 amONT - SIN
2 stops26h 50mMultiple Airlines
Deal found 11/14$1,118

Find flights from Southeast Asia to Ontario within your budget

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 2,752,363 searches. Data last updated November 14, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

ManilaOntario

MNL - ONT

MNLONT

Manila Ninoy Aquino Intl

Sun 3/30

10:35 am-6:05 pm

1 stop22h 30m

Ontario

Sat 5/24

12:10 am-9:35 am

1 stop18h 25m

$770

BangkokOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

Fri 2/28

2:35 am-4:50 pm

1 stop29h 15m

Ontario

Sun 3/9

11:45 pm-1:35 am

1 stop35h 50m

$775

Ho Chi Minh CityOntario

SGN - ONT

SGNONT

Ho Chi Minh City

Mon 2/24

11:00 am-4:50 pm

1 stop20h 50m

Ontario

Mon 3/17

11:45 pm-10:00 am

1 stop20h 15m

$802

BangkokOntario

BKK - ONT

BKKONT

Bangkok Suvarnabhumi

Mon 2/17

9:25 am-8:40 pm

2 stops26h 15m

Ontario

Wed 3/12

6:00 am-12:05 am

2 stops28h 05m

$860

Cebu CityOntario

CEB - ONT

CEBONT

Cebu City Mactan Intl

Thu 2/20

12:05 pm-4:50 pm

1 stop20h 45m

Ontario

Mon 4/28

12:10 am-4:20 pm

2 stops25h 10m

$884

SingaporeOntario

SIN - ONT

SINONT

Singapore Changi

Mon 4/28

2:00 am-6:05 pm

1 stop31h 05m

Ontario

Fri 5/2

12:10 am-12:40 am

1 stop33h 30m

$884

Cebu CityOntario

CEB - ONT

CEBONT

Cebu City Mactan Intl

Thu 2/20

12:05 pm-4:50 pm

1 stop20h 45m

Ontario

Mon 4/28

12:10 am-5:35 pm

2 stops26h 25m

$900

SingaporeOntario

SIN - ONT

SINONT

Singapore Changi

Wed 3/26

10:10 am-8:17 pm

2 stops25h 07m

Ontario

Thu 3/27

6:00 am-8:15 pm

1 stop23h 15m

$937

ManilaOntario

MNL - ONT

MNLONT

Manila Ninoy Aquino Intl

Sat 12/7

6:50 pm-9:53 am

2 stops31h 03m

Ontario

Mon 12/9

6:00 am-10:50 pm

2 stops24h 50m

$972

Kuala LumpurOntario

KUL - ONT

KULONT

Kuala Lumpur Intl

Wed 12/11

2:35 pm-4:50 pm

1 stop18h 15m

Ontario

Tue 12/24

10:45 pm-1:15 pm

1 stop22h 30m

$985

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/13

Showing 1-10 of 60 results
1
2
3
...
6

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.

Travel insights for flights from Southeast Asia to Ontario

Get recent, data-driven insights about flights from Southeast Asia to Ontario including ideal travel times, pricing trends, and more.

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

Currently, September is the cheapest month in which you can book a flight from Southeast Asia to Ontario (average of $236). Flying from Southeast Asia to Ontario in December is currently the most expensive (average of $298). 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 November 14, 2024.

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.

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 November 14, 2024.
Read reviews from past customers who have flown China Airlines, American Airlines and United Airlines from Southeast Asia to Ontario. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.5
Very good
1,036 reviews

Food

8.1

Crew

8.7

Comfort

8.3

Entertainment

8.2

Overall

8.5

Boarding

8.5

Reviews

1 / 10

The only reason I gave comfort a good and not an excellent is over something Korean Air has no control. I choose an aisle seat so I can easily stand and walk to the lavatory and so I have only one seat mate to contend with. In my case, I had someone who chose to horn in on my space. At its worst, she laid her head on her companion’s lap with her feet close to me. She made sure her feet were covered with her blanket and scrunched up so she wasn’t exactly in my face. That was good enough for me not to complain to the fight attendants.

8.5
Very good
1,036 reviews
8.5
Very good
1,036 reviews

Food

8.1

Crew

8.7

Comfort

8.3

Entertainment

8.2

Overall

8.5

Boarding

8.5

Reviews

1 / 10

The only reason I gave comfort a good and not an excellent is over something Korean Air has no control. I choose an aisle seat so I can easily stand and walk to the lavatory and so I have only one seat mate to contend with. In my case, I had someone who chose to horn in on my space. At its worst, she laid her head on her companion’s lap with her feet close to me. She made sure her feet were covered with her blanket and scrunched up so she wasn’t exactly in my face. That was good enough for me not to complain to the fight attendants.

8.3
Very good
1,460 reviews
8.5
Very good
1,036 reviews

Food

8.1

Crew

8.7

Comfort

8.3

Entertainment

8.2

Overall

8.5

Boarding

8.5

Reviews

1 / 10

The only reason I gave comfort a good and not an excellent is over something Korean Air has no control. I choose an aisle seat so I can easily stand and walk to the lavatory and so I have only one seat mate to contend with. In my case, I had someone who chose to horn in on my space. At its worst, she laid her head on her companion’s lap with her feet close to me. She made sure her feet were covered with her blanket and scrunched up so she wasn’t exactly in my face. That was good enough for me not to complain to the fight attendants.

8.3
Very good
779 reviews
8.5
Very good
1,036 reviews

Food

8.1

Crew

8.7

Comfort

8.3

Entertainment

8.2

Overall

8.5

Boarding

8.5

Reviews

1 / 10

The only reason I gave comfort a good and not an excellent is over something Korean Air has no control. I choose an aisle seat so I can easily stand and walk to the lavatory and so I have only one seat mate to contend with. In my case, I had someone who chose to horn in on my space. At its worst, she laid her head on her companion’s lap with her feet close to me. She made sure her feet were covered with her blanket and scrunched up so she wasn’t exactly in my face. That was good enough for me not to complain to the fight attendants.

8.0
Very good
8,788 reviews
8.5
Very good
1,036 reviews

Food

8.1

Crew

8.7

Comfort

8.3

Entertainment

8.2

Overall

8.5

Boarding

8.5

Reviews

1 / 10

The only reason I gave comfort a good and not an excellent is over something Korean Air has no control. I choose an aisle seat so I can easily stand and walk to the lavatory and so I have only one seat mate to contend with. In my case, I had someone who chose to horn in on my space. At its worst, she laid her head on her companion’s lap with her feet close to me. She made sure her feet were covered with her blanket and scrunched up so she wasn’t exactly in my face. That was good enough for me not to complain to the fight attendants.

7.8
Good
1,346 reviews
8.5
Very good
1,036 reviews

Food

8.1

Crew

8.7

Comfort

8.3

Entertainment

8.2

Overall

8.5

Boarding

8.5

Reviews

1 / 10

The only reason I gave comfort a good and not an excellent is over something Korean Air has no control. I choose an aisle seat so I can easily stand and walk to the lavatory and so I have only one seat mate to contend with. In my case, I had someone who chose to horn in on my space. At its worst, she laid her head on her companion’s lap with her feet close to me. She made sure her feet were covered with her blanket and scrunched up so she wasn’t exactly in my face. That was good enough for me not to complain to the fight attendants.

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 China Airlines, with whom users have recently found tickets for as low as $447. However, be on the lookout for offers from United Airlines and Japan 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?

  • 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, September is the cheapest month in which you can book a flight from Southeast Asia to Ontario (average of $236). Flying from Southeast Asia to Ontario in December is currently the most expensive (average of $298). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Southeast Asia to Ontario

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

Top airline flying from Southeast Asia to Ontario

Discover the top airline 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 2,752,363 searches. Data last updated November 14, 2024.
AirlineCheapestAverageFlexibilityOn-time
China AirlinesCheapest$766Average$939FlexibilityNo cancel feeOn-time70%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.