$417 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 4/20. 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.
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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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Best Southeast Asia Flight Deals from Ontario

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Bangkok
Bangkok2 stops$798
Manila
Manila1 stop$767
Singapore
Singapore1 stop$878
Denpasar
Denpasar1 stop$928
Hanoi
Hanoi1 stop$815
Phuket City
Phuket City2 stops$964
Cebu City
Cebu City1 stop$738
Phnom Penh
Phnom Penh1 stop$920
Da Nang
Da Nang1 stop$810
Chiang Mai
Chiang Mai1 stop$861
Angeles City
Angeles City1 stop$845
Krabi
Krabi2 stops$1,627

Cheap Flight Deals from Ontario to Southeast Asia (ONT-zzYJX)

 
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.

Recent round-trip flight deals from Ontario to Southeast Asia

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Ontario to Southeast Asia.
Discover the best prices for you by selecting your travel dates on KAYAK.
Choose your dates
12:10 am - 11:05 amONT-CEB
19h 55m1 stop
12:05 pm - 6:00 pmCEB-ONT
20h 55m1 stop
$738China Airlines
Find Deal
Tue, May 6 - Tue, May 13
12:10 am - 11:05 amONT-CEB
19h 55m1 stop
12:05 pm - 6:00 pmCEB-ONT
20h 55m1 stop
$754China Airlines
Find Deal
Tue, Sep 16 - Thu, Sep 25
5:40 am - 9:45 pmONT-BKK
26h 05m2 stops
11:30 pm - 6:20 pmBKK-ONT
32h 50m2 stops
$798Korean Air
Find Deal
Sun, Mar 30 - Wed, May 7
6:00 am - 9:55 pmONT-SGN
25h 55m2 stops
11:15 pm - 5:42 pmSGN-ONT
32h 27m2 stops
$816United Airlines
Find Deal
Tue, Sep 2 - Mon, Sep 15
6:00 am - 9:55 pmONT-SGN
25h 55m2 stops
7:00 am - 5:42 pmSGN-ONT
24h 42m2 stops
$819United Airlines
Find Deal
Wed, Sep 3 - Thu, Sep 18
7:00 am - 11:25 pmONT-BKK
26h 25m2 stops
2:35 am - 11:43 pmBKK-ONT
35h 08m2 stops
$819Korean Air
Find Deal
Thu, Sep 4 - Wed, Sep 10
11:45 pm - 5:15 pmONT-SGN
27h 30m1 stop
11:30 am - 5:40 pmSGN-ONT
20h 10m1 stop
$885STARLUX Airlines
Find Deal
Fri, Aug 1 - Mon, Aug 25
11:45 pm - 7:05 pmONT-CEB
28h 20m1 stop
10:50 am - 5:40 pmCEB-ONT
21h 50m1 stop
$885STARLUX Airlines
Find Deal
Fri, Aug 15 - Wed, Aug 27
6:24 pm - 4:05 amONT-MNL
18h 41m1 stop
10:20 pm - 10:51 amMNL-ONT
27h 31m1 stop
$968Philippine Airlines
Find Deal
Fri, Apr 25 - Sun, May 4
6:00 am - 4:05 amONT-MNL
31h 05m1 stop
10:20 pm - 5:30 pmMNL-ONT
34h 10m1 stop
$975Philippine Airlines
Find Deal
Wed, Apr 9 - Sun, May 4

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.

What is the cheapest time of day to fly to Southeast Asia?

The average price for all round-trip flights from Ontario to Southeast Asia depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.
The cheapest time of day to fly to Southeast Asia is generally in the morning, when round-trip flights cost $911 on average. Morning departures are around 29% cheaper than evening flights, on average. The most expensive time of day to fly to Southeast Asia is generally in the evening, which is peak travel time and where the average cost of a ticket is $1,279.

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 September, when tickets cost $870 (return) on average. On the other hand, the most expensive months are June and July, when the average cost of round-trip tickets is $1,620 and $1,477 respectively.

What’s the cheapest day of the week to fly from Ontario to Southeast Asia?

The average price of all round-trip flights from Ontario to Southeast Asia clicked on KAYAK for each day over the last 12 months.
When flying from Ontario to Southeast Asia, you should consider leaving on a Wednesday and avoid Fridays if you are looking for the best rates. For your return to Ontario, you’ll find the best rates on Thursdays and the most expensive ones on Fridays.

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 6 weeks before departure. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.

Good to know

Low season

August

High season

January

Cheapest flight

$417
Best time to beat the crowds with an average 12% drop in price.
Most popular time to fly and prices are also 10% lower on average.
Flight from Ontario to Cebu City

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.

See more FAQs

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.
9.1
STARLUX AirlinesOverall score based on 141 reviews
9.3Crew
9.0Comfort
9.1Boarding
9.0Food
9.1Entertainment
Airline reviews

Amazing!!! It really is good! The seats do go back far to relax so if you don’t like the person to go back, just adjust and go back and everyone goes back to settle and be comfy. Enjoy few free drinks and the little amenities they provide.

10.0 Excellentkay, Jan 2025TPE - LAX
Read more STARLUX Airlines reviews

Amazing!!! It really is good! The seats do go back far to relax so if you don’t like the person to go back, just adjust and go back and everyone goes back to settle and be comfy. Enjoy few free drinks and the little amenities they provide.

This Airline is really good! Better than Eva air for sure and more luxury. I really liked all the small details and amenities plus it really is free alcohol!

The crew services, the flight, the updates and our experience was awesome. Thank you.

Starlux is a great choice for long haul flights. It offers excellent foods and entertainment value. Ground staff are courteous, effective and efficient handing check-ins and understand travelers concerns. Flight attendants are equally great. They're full of positive attitudes and their goal is for traveler's getting destination with comfort and respect. Highly recommended.

Efficient boarding, on time departure. Cabin crew all nice looking and well dressed, helpful. Plane interior looked modern and new, fresh condition.

I thought all the while when I booked my flight I am entitled to check- in 2 luggages of 23 Kg each only to find out that the ticket I purchased online entitle me for only one luggage. I have been traveling for over 20 years and this is the first experience to such… so frustrating.

I was pleasantly happy with this airline, which is new to me. The crew was attentive and the seats felt better than most other economy. There was plenty of bin space. Glad I got to pick the seat I had(based on distance from baby image on seat map).

Business Class is a luxury that can be quite addictive. The priority and VIP treatment is great. We found a new favorite airline for our travels.

The meal and service were very excellent. It’s a n unforgettable journey

An excellent experience. The aircraft, crew, services, and amenities were all top notch for an economy class ticket. It has been quite a while since I've had this level of service on an airline.

Just a typical domestic poor flight nothing more. There is no food choices in such a flight. Crew doesn't really care if you are on-board or not

long flights are difficult but the crew and amenities made it a very good experience

Our seat row plus one ahead and behind we're completely overlooked during beverage service...

Need to have space for Cary on when traveler boarding any zone

When I selected my seats, it showed row 29 as the front row, so I paid extra to sit in what I thought would be the front row, but when I boarded the plane, row 29 was the second economy row. I was disappointed that I'd spent almost $100 more for no actual benefit.

everything was fine, would have liked better food but it was warm, great choices for movies

The carry on baggage was collected before boarding without further information where the passengers can collect them . When the flight arrived at Tan son Nhat airport, it was very complicate to find the luggage

Unlimited drinks and snacks on this long flight. Very courteous Korean staff !!!

I like it when the plane have waited for passengers like us who are trying to catch the plane. Detroit was my mom's port of entry we spent too much time looking for our luggages at baggage claim which no problem. But then the problem occur after the immigration when the homeland security agents forgot to give us our passports which it took so long to find them and I was very anxious because we might not be able to catch our flights but luckily the plane to knoxville still sitting there and waiting for us. Praise the Lord for everything.

I took several flights that day, this was the only flight that was absolutely freezing!! It was so cold.

Most relaxing long distance flight I have been on. And I have flown on many.

Not great, will likely try to fly another or maybe I should have upgraded my ticket? Needed Air…

I don’t think I’ll be flying them again. Tight seats, no flowing air or air nozzles that you can turn air on you, for those who could have motion sickness this would be your worst nightmare. The pilot was great and experienced (which is what you want when flying 12 hours) overall I’m thankful knowledgeable pilots!

My ticket did not indication which group I was in for boarding; the gate attended help me

Very routh cabin crew food is only 2 meals for 13 hours fry with them They should get better training how to service good super routh language and talking with customer

I would like to commend the staff from this flight. They all looked happy and I can tell they love what they are doing and constantly smiling while serving the passengers. Special mention to the guy FA in our section. I did not get his name but he is so far the best F.A I have ever encountered!

staff are super nice and effiecient! It was a very comfortable and relaxing flight

Boarding could have been a little bit better but other than that it was a pretty good experience. I think because of the stowaway to Paris France recently they are being extra diligent about boarding passes at the gate. But they boarded the back of the plane first, and that's something I really think needs to start in the USA.

I was ordered vegetarian food, but didn't services to me :(

I did not take the flight, tried to cancel it right after I booked it, but was unable to reach anyone. I blame Kayak for this situation because they sent the booking through another company and I was unable to get anyone to talk to me about the situation. I had to just take the hit and pay for another flight through Cathay Pacific, which was wonderful. I will never use Kayak again. (I bet they don’t post this review!) I’ll just post about them on social media sites. I don’t want anyone to have to go through the hassle and expense I dealt with.

Pilot Erika DeLong made us feel safe and at ease in a frankly scary time to be flying. Her warm smile and greeting and excellent command of the aircraft in foggy bumpy weather helped us all to calm our nerves and get us home safely.

Plenty of room for me and the cat in Premium Economy. Seat was comfortable. Boarding was a breeze. The lady at the special check-in desk was great, super helpful and professional.

Smooth flight. As always dinner could have been more generous. Breakfast was great.

AWFUL. I have had the experience of traveling with many airlines across the world, and hands down United Airlines is the worst. Not one flight was on time, and I don’t think I met one crew member or staff member who wasn’t rude.

Old and out of date plane, it seem like every time I fly with united there’s and issue. We were delayed,

We took off an hour late due to arrival airport not having enough gates. That was followed by 1:30 wait to get our bags delivered for the entire flight.

For an 8.5 hour flight the service on board lacked a bit. Service start was slow, the food was worse than usual and they skipped the snack they were supposed to deliver before landing.

Wish movie and music choices changed more often. Mostly same from a month or two ago when I last flew.

It was good. Just that the seats could not be reclined. The people behind were not ready to let the chairs be reclined

Checkin was painful and slow! Lady didn’t seem to know what was going on and couldn’t explain the delay. Seemed ahe couldnt see the computer scree and we couldn’t hear her talk through her mask.

The flight to GES MNL sucks, there was no entertainment. There was no footrest. So the business class seat was not comfortable.

The staff was wonderful. Really took good care of me. The food was not my favorite.

love the flight but the chairs are not comfortable mostly for smaller people

I can't complain. Flying with Philippines airlines was the best choice. They are the best option in the Philippines.

Flight left on time landed early, Crew was great , never an easy job. Bags arrived in a timely manner . Good job all in all.

Food was great. Hot meals. Entertainment- not so good. They only showed one tv filipino series with only 3 episodes for a 14 hour flight.

My finger has been hurt by seat, but no answer from you.

Flight was delayed and caused us to miss our connection. American Airlines did nothing to compensate us and they lost 2 out of 4 of our checked baggage. They have not returned inquiries into customer service and have not offered us compensation. Terrible.

The PAL employee who assisted my minor children went above and beyond her job and our expectations! Sophia was kind, courteous and made sure my children were taken care of!

Service was good but food needs maybe it’s just me Cause I am a foodservice supervisor more menu Sampling to get better quality when packed to be reheated . Vegetables are already dark and over cooked and breaded entrees are not the best choice I guess . All airlines meal service doesn’t appeal To me.Cause this trip I’ve used 4 different airlines and nothing good in all of them food wise. Thanks

Everything you need to know for your flight to Southeast Asia

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