$405 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 9/12. 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.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Southeast Asia.
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Cheap Flights from Ontario to Southeast Asia

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Bangkok
Bangkok2 stops$852
Manila
Manila2 stops$885
Ho Chi Minh City
Ho Chi Minh City2 stops$909
Singapore
Singapore1 stop$978
Denpasar
Denpasar2 stops$951
Hanoi
Hanoi2 stops$929
Phuket City
Phuket City2 stops$971
Cebu City
Cebu City2 stops$858
Da Nang
Da Nang1 stop$1,020
Phnom Penh
Phnom Penh3 stops$15,336
Chiang Mai
Chiang Mai2 stops$957
Angeles City
Angeles City2 stops$1,012
Krabi
Krabi2 stops$1,399
Bangkok
Bangkok2 stops$852
Manila
Manila2 stops$885
Ho Chi Minh City
Ho Chi Minh City2 stops$909
Singapore
Singapore1 stop$978
Denpasar
Denpasar2 stops$951
Hanoi
Hanoi2 stops$929
Phuket City
Phuket City2 stops$971
Cebu City
Cebu City2 stops$858
Da Nang
Da Nang1 stop$1,020
Phnom Penh
Phnom Penh3 stops$15,336
Chiang Mai
Chiang Mai2 stops$957
Angeles City
Angeles City2 stops$1,012
Krabi
Krabi2 stops$1,399

Book Cheap Ontario to Southeast Asia Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip 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

Wed, Jul 29 - Thu, Aug 27
Delta Logo
6:20 am - 8:10 pm
ONT
-
CGK
47h 50m
2 stops
Delta Logo
9:50 pm - 11:44 pm
CGK
-
ONT
39h 54m
2 stops
$723Delta
Tue, Aug 11 - Thu, Sep 10
Korean Air Logo
7:00 am - 12:45 am
ONT
-
CGK
27h 45m
2 stops
Korean Air Logo
2:15 am - 5:16 pm
CGK
-
ONT
29h 01m
2 stops
$729Korean Air
Wed, Aug 26 - Wed, Sep 9
ANA Logo
7:13 pm - 4:00 pm
ONT
-
CGK
30h 47m
2 stops
ANA Logo
7:00 am - 10:58 pm
CGK
-
ONT
29h 58m
2 stops
$809ANA
Sat, Aug 29 - Thu, Oct 1
Delta Logo
6:20 am - 12:45 am
ONT
-
CGK
28h 25m
2 stops
Delta Logo
2:15 am - 11:44 pm
CGK
-
ONT
35h 29m
2 stops
$823Delta
Wed, Aug 19 - Mon, Aug 31
United Airlines Logo
1:44 pm - 4:00 pm
ONT
-
CGK
36h 16m
2 stops
United Airlines Logo
7:00 am - 10:58 pm
CGK
-
ONT
29h 58m
2 stops
$828United Airlines
Sun, Sep 6 - Thu, Sep 24
United Airlines Logo
7:13 pm - 4:00 pm
ONT
-
CGK
30h 47m
2 stops
United Airlines Logo
6:10 am - 5:51 pm
CGK
-
ONT
25h 41m
2 stops
$831United Airlines
Sun, Sep 27 - Sun, Oct 18
China Airlines Logo
12:10 am - 4:00 pm
ONT
-
MNL
24h 50m
2 stops
China Airlines Logo
10:05 pm - 6:00 pm
MNL
-
ONT
34h 55m
2 stops
$895China Airlines
Mon, Sep 14 - Tue, Oct 6
China Airlines Logo
12:45 am - 3:50 pm
ONT
-
MNL
24h 05m
1 stop
China Airlines Logo
4:50 pm - 6:00 pm
MNL
-
ONT
16h 10m
1 stop
$923China Airlines
Sat, Sep 12 - Sat, Sep 19
STARLUX Airlines Logo
11:10 pm - 9:30 am
ONT
-
MNL
19h 20m
1 stop
STARLUX Airlines Logo
10:45 am - 5:05 pm
MNL
-
ONT
21h 20m
1 stop
$939STARLUX Airlines
Sat, Aug 1 - Wed, Aug 19
STARLUX Airlines Logo
11:45 pm - 4:55 pm
ONT
-
SGN
27h 10m
1 stop
STARLUX Airlines Logo
11:30 am - 5:40 pm
SGN
-
ONT
20h 10m
1 stop
$973STARLUX 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 $398, 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 April, when tickets cost $360 (return) on average. On the other hand, the most expensive months are December and July, when the average cost of round-trip tickets is $1,709 and $1,694 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 1 week before departure. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.

Good to know

Low seasonSeptember
Cheapest flight$405
Best time to beat the crowds with an average 16% drop in price.
Most popular time to fly and prices are also 15% lower on average.
Flight from Ontario to Jakarta

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 5 airlines serving 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.
8.9
STARLUX AirlinesOverall score based on 309 reviews
8.8Entertainment
8.9Comfort
9.2Crew
8.6Food
9.0Boarding
Airline reviews

amazing and great food. everything was smooth from start to finished

10.0 ExcellentBrook, May 2026
TPE - BKK
Read more STARLUX Airlines reviews

amazing and great food. everything was smooth from start to finished

love this boutique luxury airline. crew was nice and attentive. Lounge is too small , i think they should have more area for relaxing and lounging not just to sit and eat .. feels like a cafeteria more than a lounge. overall i enjoy it. food on the plane LAX to Teipei should inprove a bit. no flavor and more drinks pls

The overall experience with STARLUX was phenomenal. One of the best highlights for me was the smooth landing in LA(smoothest landing I’ve experienced ever) and the attentiveness of all your staff from check-in to boarding. Also, flight left and landed between airports on time. I highly recommend Starlux to my family and friends and I’m excited to fly with you again.

We are on economy premium but they put us in economy seating? Asking why the fligh supports said : If you not happy you can claim for refund?

FLEW IN BUSINESS CLASS OVER NIGHT FLIGHT AIRLINE BOOKED A PARENT AND ONE YEAR OLD KID PARENT ALLOWED THE KID TO DISTURB EVERYONES SLEEP A terrible flight that was expensive I have 10 grand children I love kids But to be disturbed on a over night flight is in not what I paid for I hold the air line responsible Respectfully, Al Eaddy

I liked everything but I flew business class and StarLux booked another passenger and a one year old , in business class The child cried 80 percent of the flight, the flight was a long 13 hour flight. I’m 75 and I have 10 grand children, I love kids But with that said it still made it not and enjoyable flight. Ask your great flight attendance what they think of the situation, they had to deal with. Let me know what they said Respectfully, Al Eaddy

Everything is smooth. Very good. Except flight arrived SFO 30min late.

more new movies and the blockbuster movies that everyone likes

Great airline. Kind staff, before m, during, and after the flight. They Directed you the whole way. Even when I arrived at my transfer destination, flight attendants guided passengers on which direction to go. I would definitely fly STARLUX again.

Got dinner and breakfast! They had mahjong game in entertainment system. Current movies. Loved the slippers, sleeping mask packet. Great experience for a long flight

Very long flight time. Still better than a connection flight. Staff is very good at service. Vegetarian food is not very good.

AAAAHHHH... It was shocking in a very positive way, the attention to detail, the courtesy, the manners of all personnel on board, the constant honest smiling. You can see and feel they take pride in all they do no matter how trivial. The plane in general was very comfortable. I can't wait to do it again

The boarding process was efficient and quick. The seats were comfortable. The food was good. The service was excellent. We had a lovely flight from Seattle on Korean air

Flight crew was fantastic. The aircraft was meticulously cleaned at all times. The crew was continuously checking to see if the passengers were ok.

They were trying to get people to check luggage because the over head compartments were full but when we boarded there were lots of empty places that people could have put the luggage.

It was good, I liked the self-serve snacks but it was a little difficult to get the alcohol, which is understandable since I wouldn't want kids sneaking it.

Friendly flight attendants and gate agents. Very clean plane and food was good!

I was unable to select decent seats, and so I was stuck in the middle seat because it was selected for me

There was a lot of partial tv shows but not enough to last the flight. The food was incredible! The crew were so helpful and patient. Lots more space than what I usually get on an international flight. Very comfortable!

Stingy on the drinks - 15 hour direct flight and could barely get attention for some water

We boarded late and it snowballed from there. Had to wait behind 6 other flights to take off before us. Then, arriving late to our destination, we had to circle in the air for 20 minutes. If that's not enough, the seats are very cramped on their iteration if the A321neo. I'm 6"3' tall and my knees were pressed against the seat in front of me. These are not the slimline seats that offer less cushion with more leg room. I had no room to move my legs. Since I am an adult male, I also had no shoulder room. I sat on an aisle seat to have some space to lean my should out. But the walkway seemed to be more narrow than I am used to see. I felt bad for the middle passenger because there was just no where for me to put my shoulders except into the middle seat person. I don't plan to fly in this airline again in this configuration. Pack everyone in and lose my business.

Everything was fine except the seats were quite compressed and hard for the 12 hour flight

The crew are amazing. Very professional, polite, kind, and accommodating.

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.

Smooth sailing trip, pilots are good. Less amount of food offered but the quality is okey.

Humm, I should have known that the seat I peaked on my flight from Inchon to Manila was designed for a toddler or very small person.

The staff hold my luggage to steel and exchange my stub, i was very disappointed.

Kayak along with airfare assay are attempting to steal my money. Charges are being pressed.

Customer service and attention to details. The food was good.

Felt like the oldest plane in Asiana Fleet. Screen was 5-6in only and no charging at all. Movie selection wasn't great.

When one asks for water because they are dehydrated, bring more then a sip or two in a small cup. Bring them a whole bottle.

I’d have rated Asiana good except an unfortunate incident in which I felt one of your employee didn’t really help us. During the first leg of the trip, the flight from LAX to ICN, I left my backpack on the plane. When I realized, I reported to one of your employee who promised me that it’d be taken care of, that my backpack will be there at HCM city. When we arrived there, HCM people had no idea and my backpack was still at Incheon airport who denied any knowledge whatsoever. I was left in the cold and felt helpless. I was very disappointed. I’d like someone to look into this and let me know.

It was my first time flying Asiana but i was very pleased with how professional and understanding the flight crew is with little kids. One flight attendant held my 3 year old daughter’s hand guiding her to the exit after landing while i had my hands full with luggage and my infant. She was very helpful.

Better screens, it would have been nice to have more comfortable seats.

I liked that my son and I were reseated next to each other (we had different bookings). I liked that it was a directg flight and mostly on time. I liked that you provided pillows and blankets. Flight attendants were generally courteous. The messaging through wifi did not work well. The food was not good. Seats are very narrow and I felt slightly claustraphobic in the window seat.

Some crew were unfriendly or in some cases just straight up rude.

Booked through Kayak Business, had a seat in middle and towards back due to booking rate, not comfortable.

Outstanding service, efficient & friendly crew, flight was safe, comfortable & on time

United Airline crews were very friendly and very attentive. 12 hours flight was gone like in a shorter one.

Food was surprisingly delicious. Space in the seat is horrible when the seating front is reclined. Movie offerings were terrible. Crew was friendly and helpful.

Flight itself excellent, but delayed so missed connection & got to destination 2 hrs later

Due to cancellation of connecting flight (Lufthansa) I didn’t fly with United

It was a red-eye, but the flight felt surprisingly quick. The seats were very comfortable, and that made resting much easier. I also want to thank the gentleman seated next to me, who graciously moved so my mom could sit beside me. We slept almost the entire way. The cabin crew was respectful in not disturbing us, while also being courteous and professional throughout. Thank you, United.

Boarding was again a "free for all". We were boarding group 4, and almost the entire plane was able to board before us. It's a shame that someone who follows the rules, gets the short end of the stick. Not fair.

Everything you need to know for your flight to Southeast Asia

Information on your arrival and departure airports