Find flights
Deals
When to book
FAQs

Cheap flights from Ontario to Southeast Asia from C$ 641

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 22/9. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — BKK
11 Jul — 18 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ontario to Southeast Asia

Enter your travel dates to find the best prices.

Cheapest flights from Ontario to Southeast Asia
Explore the most affordable flight options available from Ontario to Southeast Asia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 June 2026.

Wed 16/96:55 a.m.
YOW
-
BKK
2 stops39h 00m
Multiple Airlines
Mon 28/92:35 a.m.
BKK
-
YOW
2 stops33h 18m
Multiple Airlines
Deal found 8/6C$ 1,459
Wed 9/96:55 a.m.
YOW
-
BKK
2 stops39h 00m
Multiple Airlines
Tue 22/911:30 p.m.
BKK
-
YOW
2 stops33h 40m
Multiple Airlines
Deal found 8/6C$ 1,465
Thu 10/96:55 a.m.
YOW
-
BKK
2 stops27h 50m
Air Canada
Wed 23/97:05 a.m.
BKK
-
YOW
2 stops45h 10m
Air Canada
Deal found 8/6C$ 1,493
Thu 17/96:55 a.m.
YOW
-
BKK
2 stops27h 50m
Air Canada
Wed 30/97:05 a.m.
BKK
-
YOW
2 stops21h 10m
Air Canada
Deal found 8/6C$ 1,502
Wed 23/96:15 p.m.
YOW
-
BKK
2 stops23h 50m
Air Canada
Tue 6/107:45 a.m.
BKK
-
YOW
2 stops28h 08m
Air Canada
Deal found 8/6C$ 1,509
Tue 8/96:15 p.m.
YOW
-
BKK
2 stops47h 50m
Air Canada
Mon 21/97:05 a.m.
BKK
-
YOW
2 stops45h 10m
Air Canada
Deal found 8/6C$ 1,514
Wed 9/96:05 p.m.
YOW
-
BKK
1 stop24h 00m
Air Canada
Tue 22/97:45 a.m.
BKK
-
YOW
2 stops28h 08m
Air Canada
Deal found 8/6C$ 1,516
Wed 2/96:05 p.m.
YOW
-
BKK
1 stop24h 00m
Air Canada
Mon 14/92:35 a.m.
BKK
-
YOW
2 stops33h 18m
Air Canada
Deal found 8/6C$ 1,518
Tue 22/96:15 p.m.
YOW
-
BKK
2 stops47h 50m
Air Canada
Mon 5/107:05 a.m.
BKK
-
YOW
2 stops45h 10m
Air Canada
Deal found 8/6C$ 1,523
Tue 1/96:05 p.m.
YOW
-
BKK
2 stops48h 00m
Air Canada
Mon 14/97:45 a.m.
BKK
-
YOW
2 stops32h 58m
Air Canada
Deal found 8/6C$ 1,525
Fri 11/96:55 a.m.
YOW
-
BKK
2 stops29h 40m
Air Canada
Wed 23/92:35 a.m.
BKK
-
YOW
2 stops33h 18m
Air Canada
Deal found 8/6C$ 1,528
Mon 2/118:50 p.m.
YUL
-
BKK
1 stop27h 25m
Qatar Airways
Tue 17/112:00 a.m.
BKK
-
YUL
1 stop24h 05m
Qatar Airways
Deal found 7/6C$ 1,546

Find flight deals from Ontario to Southeast Asia

Keep the following information in mind while searching for Ontario to Southeast Asia flight deals. Data was last updated 11 June 2026.

Round-trip from

C$ 1,459

One-way from

C$ 641

Popular in

December

Cheapest in

September

Average price

C$ 2,008
Air Canada
  • Air Canada
  • 16/9-28/9
  • 4 total stops
  • 72h 18m total
  • Ontario to Southeast Asia
Search Deals
22/9
  • 22/9
  • 2 total stops
  • 29h 25m total
  • Ontario to Southeast Asia
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (C$ 160 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 79 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Southeast Asia 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 629,999 searches. Data last updated 11 June 2026.
Use the filters below to find and compare flights from Ontario to Southeast Asia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

TorontoHo Chi Minh City

YYZ - SGN

YYZSGN

Toronto Pearson Intl

Wed 21/10

3:53 p.m.-10:05 p.m.

3 stops43h 12m

Ho Chi Minh City

Mon 30/11

11:05 p.m.-1:33 p.m.

2 stops26h 28m

C$ 1,593

TorontoHo Chi Minh City

YYZ - SGN

YYZSGN

Toronto Pearson Intl

Mon 26/10

6:55 p.m.-10:55 p.m.

2 stops41h 00m

Ho Chi Minh City

Tue 9/3

11:05 p.m.-1:33 p.m.

2 stops26h 28m

C$ 1,593

TorontoHo Chi Minh City

YYZ - SGN

YYZSGN

Toronto Pearson Intl

Tue 17/11

6:55 p.m.-10:55 p.m.

2 stops40h 00m

Ho Chi Minh City

Tue 13/4

11:15 p.m.-7:34 p.m.

2 stops31h 19m

C$ 1,593

TorontoHo Chi Minh City

YYZ - SGN

YYZSGN

Toronto Pearson Intl

Thu 23/7

10:15 a.m.-9:55 p.m.

2 stops24h 40m

Ho Chi Minh City

Tue 22/9

7:00 a.m.-8:41 p.m.

2 stops24h 41m

C$ 1,594

MontrealBangkok

YUL - BKK

YULBKK

Montreal Pierre Elliott Trudeau Intl

Sun 1/11

8:50 p.m.-7:25 p.m.

1 stop34h 35m

Bangkok Suvarnabhumi

Wed 25/11

6:55 p.m.-2:05 p.m.

1 stop31h 10m

C$ 1,596

MontrealHo Chi Minh City

YUL - SGN

YULSGN

Montreal Pierre Elliott Trudeau Intl

Wed 18/11

9:30 a.m.-9:50 p.m.

3 stops72h 20m

Ho Chi Minh City

Thu 6/5

7:00 a.m.-10:35 a.m.

2 stops38h 35m

C$ 1,596

TorontoHo Chi Minh City

YYZ - SGN

YYZSGN

Toronto Pearson Intl

Tue 21/7

5:15 p.m.-10:05 p.m.

3 stops41h 50m

Ho Chi Minh City

Sun 20/9

11:15 p.m.-7:02 p.m.

2 stops30h 47m

C$ 1,596

MontrealHo Chi Minh City

YUL - SGN

YULSGN

Montreal Pierre Elliott Trudeau Intl

Tue 6/10

9:35 p.m.-1:50 p.m.

1 stop29h 15m

Ho Chi Minh City

Tue 27/10

7:40 p.m.-3:05 p.m.

1 stop30h 25m

C$ 1,617

TorontoHo Chi Minh City

YYZ - SGN

YYZSGN

Toronto Pearson Intl

Thu 12/11

6:30 a.m.-10:25 p.m.

2 stops27h 55m

Ho Chi Minh City

Mon 16/11

8:00 a.m.-9:20 a.m.

1 stop37h 20m

C$ 1,629

MontrealBangkok

YUL - BKK

YULBKK

Montreal Pierre Elliott Trudeau Intl

Wed 28/10

8:55 p.m.-5:20 a.m.

1 stop21h 25m

Bangkok Suvarnabhumi

Wed 20/1

6:10 a.m.-8:23 a.m.

2 stops38h 13m

C$ 1,631

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/6

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
6

Best time to book a flight from Ontario to Southeast Asia

Have a flexible travel schedule? Discover the best time to fly to Southeast Asia from Ontario 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 Ontario to Southeast Asia

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

Currently, September is the cheapest month in which you can book a flight from Region of Ontario to Southeast Asia (average of C$ 1,438). Flying from Region of Ontario to Southeast Asia in December is currently the most expensive (average of C$ 2,254). 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 ON to YJX?

Find hourly flight availability from Ontario to Southeast Asia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 11 June 2026.

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

How far ahead should I book a flight from Region of Ontario to Southeast Asia?

The price you pay for your flight from Region of Ontario to Southeast Asia may vary depending on when you book. For the best chance of a lower fare, look to book 76 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Southeast Asia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Region of Ontario to Southeast Asia?

    Airlines like United Airlines, Qatar Airways, and Delta fly from Region of Ontario to Southeast Asia in about 28h. The time it takes to get you to your destination can typically vary by up to 15h 12m. Airlines will cover a distance of 13626 km. This flight may include one or multiple stops.

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

    One-way options have recently been found by users for as low as C$ 491 on Philippine Airlines. Other airlines that offer cheap prices include United Airlines from C$ 521 and Singapore Airlines from C$ 530 one-way.

  • Can I find deals for flights from Ontario to Southeast Asia that include hotel bookings?

    Yes. In addition to deals on Ontario to Southeast Asia flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Southeast Asia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Southeast Asia.

  • Can I find deals for business class flights from Ontario to Southeast Asia?

    Yes. Cheapflights offers flight deals from Ontario to Southeast Asia 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 Region of Ontario to Southeast Asia?

    Currently, September is the cheapest month in which you can book a flight from Region of Ontario to Southeast Asia (average of C$ 1,438). Flying from Region of Ontario to Southeast Asia in December is currently the most expensive (average of C$ 2,254). 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 Ontario to Southeast Asia

See prices for flight routes from nearby airports that may be better suited for you.
Vancouver Intl to Suvarnabhumi flights
Pearson Intl to New Delhi flights
Pierre Elliott Trudeau Intl to Suvarnabhumi flights
Vancouver Intl to Narita flights
Vancouver Intl to Haneda flights
Pearson Intl to Suvarnabhumi flights
Halifax to Suvarnabhumi flights
Vancouver Intl to Hong Kong flights
Vancouver Intl to New Delhi flights
Edmonton to Suvarnabhumi flights
Pearson Intl to Narita flights
Vancouver Intl to Manila flights
Pierre Elliott Trudeau Intl to Narita flights
Pearson Intl to Haneda flights
Calgary to Suvarnabhumi flights
Pearson Intl to Hong Kong flights
Toronto Island to New Delhi flights
Pierre Elliott Trudeau Intl to Don Mueang Intl flights
Abbotsford to Suvarnabhumi flights
Vancouver Intl to Incheon Intl flights
Pearson Intl to Mumbai flights
Halifax to Don Mueang Intl flights
Vancouver Intl to Don Mueang Intl flights
Pierre Elliott Trudeau Intl to Haneda flights
Pearson Intl to Manila flights
Pearson Intl to Hongqiao Intl flights
Pearson Intl to Incheon Intl flights
Vancouver Intl to Hongqiao Intl flights
Pearson Intl to Don Mueang Intl flights
Pearson Intl to Ahmedabad flights
Vancouver Intl to Taiwan Taoyuan Intl flights
Pearson Intl to Colombo flights
Ottawa to Suvarnabhumi flights
Pearson Intl to Ho Chi Minh City flights
Pearson Intl to Pu Dong flights
Pearson Intl to Kathmandu flights
Vancouver Intl to Pu Dong flights
Pearson Intl to Hyderabad flights
Toronto Island to Suvarnabhumi flights
Toronto Island to Mumbai flights
Calgary to Don Mueang Intl flights
Pearson Intl to Capital flights
Pearson Intl to Bangalore flights
Toronto Island to Narita flights
Edmonton to Don Mueang Intl flights
Vancouver Intl to Singapore flights
Calgary to New Delhi flights
Calgary to Narita flights
Vancouver Intl to Gimpo Intl flights
Vancouver Intl to Ho Chi Minh City flights

Top 10 airlines flying from Ontario to Southeast Asia

Discover the top 10 airlines that operate flights from Ontario to Southeast Asia. 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 629,999 searches. Data last updated 11 June 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapestC$ 645AverageC$ 1,216FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Air ChinaCheapestC$ 860AverageC$ 1,474FlexibilityNo cancel feeOn-time67%
Search Air China flights
CondorCheapestC$ 866AverageC$ 1,233FlexibilityNo cancel feeOn-time76%
Search Condor flights
Thai AirwaysCheapestC$ 953AverageC$ 2,454FlexibilityNo cancel feeOn-time77%
Search Thai Airways flights
Singapore AirlinesCheapestC$ 1,098AverageC$ 1,574FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
KLMCheapestC$ 1,178AverageC$ 1,819FlexibilityNo cancel feeOn-time75%
Search KLM flights
Asiana AirlinesCheapestC$ 1,181AverageC$ 1,781FlexibilityNo cancel feeOn-time76%
Search Asiana Airlines flights
SAUDIACheapestC$ 1,206AverageC$ 1,460FlexibilityNo cancel feeOn-time86%
Search SAUDIA flights
DeltaCheapestC$ 1,225AverageC$ 1,486FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Etihad AirwaysCheapestC$ 1,260AverageC$ 1,714FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Ontario to Southeast Asia?

Cheapflights makes it easy to find Ontario to Southeast Asia flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Ontario to Southeast Asia?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Southeast Asia from Ontario.

Can Cheapflights find flights from Ontario to Southeast Asia with no change fees?

Certainly. Search results for flights to Southeast Asia from Ontario shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Ontario to Southeast Asia become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Southeast Asia from Ontario today and book when prices fit your budget.

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.