₱19,120 Find Cheap Flights from Ontario to Southeast Asia

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to Southeast Asia departing on 4/6. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Southeast Asia

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Southeast Asia, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Southeast Asia, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Ontario to Southeast Asia

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Ontario to Southeast Asia that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Ontario to Southeast Asia

Mon, Apr 27 - Tue, May 12
Korean Air Logo
7:00 am - 11:30 pm
ONT
-
CEB
25h 30m
2 stops
Korean Air Logo
1:00 am - 5:16 pm
CEB
-
ONT
31h 16m
2 stops
₱36,175Korean Air
Fri, May 1 - Sun, May 10
Korean Air Logo
7:00 am - 11:30 pm
ONT
-
CEB
25h 30m
2 stops
Korean Air Logo
1:00 am - 5:16 pm
CEB
-
ONT
31h 16m
2 stops
₱38,535Korean Air
Mon, Feb 2 - Mon, Mar 16
Korean Air Logo
6:00 am - 10:20 pm
ONT
-
CEB
24h 20m
2 stops
Korean Air Logo
12:15 am - 10:34 pm
CEB
-
ONT
37h 19m
2 stops
₱39,125Korean Air
Tue, Apr 28 - Mon, May 11
China Airlines Logo
12:10 am - 11:05 am
ONT
-
CEB
19h 55m
1 stop
China Airlines Logo
12:05 pm - 6:00 pm
CEB
-
ONT
20h 55m
1 stop
₱40,010China Airlines
Fri, Apr 17 - Sun, Apr 26
China Airlines Logo
12:10 am - 11:05 am
ONT
-
CEB
19h 55m
1 stop
China Airlines Logo
12:05 pm - 6:00 pm
CEB
-
ONT
20h 55m
1 stop
₱40,187China Airlines
Tue, Feb 17 - Fri, Mar 20
China Airlines Logo
10:50 pm - 3:55 pm
ONT
-
MNL
25h 05m
1 stop
China Airlines Logo
4:55 pm - 5:50 pm
MNL
-
ONT
15h 55m
1 stop
₱40,305China Airlines
Wed, Apr 1 - Thu, Apr 30
STARLUX Airlines Logo
11:10 pm - 9:00 am
ONT
-
CRK
18h 50m
1 stop
STARLUX Airlines Logo
8:30 pm - 5:05 pm
CRK
-
ONT
35h 35m
1 stop
₱46,915STARLUX Airlines
Sat, Apr 4 - Thu, Apr 16
STARLUX Airlines Logo
11:10 pm - 7:30 pm
ONT
-
CRK
29h 20m
1 stop
STARLUX Airlines Logo
8:30 pm - 5:05 pm
CRK
-
ONT
35h 35m
1 stop
₱46,974STARLUX Airlines
Mon, Apr 6 - Thu, Apr 23
Multiple Airlines Logo
7:08 pm - 7:30 pm
ONT
-
CRK
33h 22m
2 stops
Multiple Airlines Logo
8:30 pm - 5:05 pm
CRK
-
ONT
35h 35m
1 stop
₱47,269Multiple Airlines
Wed, Apr 29 - Fri, May 15
Multiple Airlines Logo
10:39 am - 9:00 am
ONT
-
CRK
31h 21m
2 stops
Multiple Airlines Logo
10:00 am - 5:05 pm
CRK
-
ONT
22h 05m
1 stop
₱47,564Multiple Airlines
Booking Insights

KAYAK's insights & trends for Ontario to Southeast Asia flights

Get data-powered insights and trends into flights from Ontario to Southeast Asia to help you find the cheapest flights, the best time to fly and much more.

Can I save money by flying with a layover from Ontario to Southeast Asia?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of ₱17,885, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from Ontario to Southeast Asia?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Ontario to Southeast Asia, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Ontario to Southeast Asia is August, when tickets cost ₱43,787 (return) on average. On the other hand, the most expensive months are December and June, when the average cost of round-trip tickets is ₱75,477 and ₱72,703 respectively.

How far in advance should I book a flight from Ontario to Southeast Asia?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Ontario to Southeast Asia, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Ontario to Southeast Asia, you should book around 5 weeks before departure, which saves you about 18% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 25 weeks before departure.

Find deals

Good to know

Low seasonAugust
Best time to beat the crowds (18% less expensive on average)
Most popular time to fly and prices are also 15% lower on average.

FAQs - booking Southeast Asia flights

  • How does KAYAK find such low prices on flights from Ontario to Southeast Asia?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ontario to Southeast Asia.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to Southeast Asia?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Ontario to Southeast Asia is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Ontario to Southeast Asia?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Ontario to Southeast Asia with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario to Southeast Asia?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Ontario to Southeast Asia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Ontario to Southeast Asia

 
See real verified KAYAK customer reviews for airlines flying from Ontario to Southeast Asia. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Ontario to Southeast Asia? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.3
China AirlinesOverall score based on 799 reviews
8.5Crew
8.0Comfort
8.3Boarding
7.8Food
8.0Entertainment
Airline reviews

Flight attendants. Food, entertainment and most of all, be on time.

8.0 ExcellentAnonymous, Dec 2025
PHX - TPE
Read more China Airlines reviews

Flight attendants. Food, entertainment and most of all, be on time.

We are glad to have used China Airlines for our trip. Continue the good service! Thank you!

The flight was uneventful and the crew was kind and professional. Really appreciate the option to order a vegan meal for the flight!

I love my Delta crew, they were so welcoming and helpful.

I absolutely loved my flight from Taipei to LAX. I was originally assigned to a different seat, however one of the stewardess noticed I was uncomfortable in my seat. She offered to move me to a more comfortable setting. Although she didn’t have to do what she did, I am more than grateful and thankful for her doing so. My longer flight felt much more comfortable, just by her taking notice. I really appreciate her.

Overall was a lovely experience. The crew were kind and courteous throughout the entire flight.

Better organization of boarding procedures. Terrible leadership guiding people to gates.

They need to improve on how the plane lands cause it was not smooth at all.

I did not like how the plane landed. It was not smooth.

Been flying with China Airline over years many times. Good experience with them, no issues.

Everything you need to know for your flight to Southeast Asia

Information on your arrival and departure airports

Ontario (ONT)