How long is the flight from Region of Ontario to Vietnam?

United Airlines, Etihad Airways, and Korean Air can get you from Region of Ontario to Vietnam in just under 38h 35m. Your travel time can differ by up to 27h 09m. Region of Ontario and Vietnam are separated by a distance of 13317 km. Both multi-stop and direct flights can be found to your destination and back.

What are the cheapest airlines to fly from Region of Ontario to Vietnam one-way?

The cheapest airline one-way is Philippine Airlines, with whom users have recently found tickets for as low as C$ 493. However, be on the lookout for offers from China Eastern and American Airlines, as they are both options that can get you from Region of Ontario to Vietnam for a low price.

In terms of precipitation, rainfall in Vietnam ranges from 0.0 - 340.0 mm per month. September is typically the wettest month, when rainfall can reach 340.0 mm. February is typically the driest time to visit Vietnam when rainfall is around 0.0 mm.

If weather is an important factor for your trip to Vietnam, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 30.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 26.0 C).

What is the cheapest time of day to fly from ON to VN?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Region of Ontario to Vietnam as you normally would.

Can I find deals for flights from Ontario to Vietnam that include hotel bookings?

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

How can I find direct flights from Ontario to Vietnam?

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

Can I find deals for business class flights from Ontario to Vietnam?

Yes. Cheapflights offers flight deals from Ontario to Vietnam by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

C$ 621+ Flights from Ontario to Vietnam

Cheap flight deals from Ontario to Vietnam

Round-trip from	C$ 1,145
One-way from	C$ 661
Popular in	December
Cheapest in	September
Average price	C$ 1,631

15/4-23/4
4 total stops
69h 45m total
Ontario to Vietnam

Search Deals

18/5
3 total stops
41h 40m total
Ontario to Vietnam

Search Deals

Highest demand for flights based on searches. 2% potential increase in price (C$ 66 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease (C$ 36 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in January 2026

Search Deals

Find flight deals from Ontario to Vietnam

Enter your travel dates to find the best prices.

Cheapest flights from Ontario to Vietnam
Explore the most affordable flight options available from Ontario to Vietnam. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 6 January 2026.

Wed 15/47:40 a.m.YYZ - DAD

2 stops44h 40mMultiple Airlines

Thu 23/44:20 p.m.DAD - YYZ

2 stops25h 05mMultiple Airlines

Deal found 4/1C$ 1,145

Sun 11/101:55 a.m.YYZ - DAD

1 stop24h 15mMultiple Airlines

Wed 21/1012:55 p.m.DAD - YYZ

2 stops53h 04mMultiple Airlines

Deal found 5/1C$ 1,240

Sun 11/101:55 a.m.YYZ - DAD

1 stop24h 15mMultiple Airlines

Thu 22/1012:55 p.m.DAD - YYZ

2 stops53h 04mMultiple Airlines

Deal found 6/1C$ 1,258

Fri 18/95:15 a.m.YOW - SGN

3 stops29h 35mUnited Airlines

Sat 3/1011:15 p.m.SGN - YOW

2 stops33h 41mUnited Airlines

Deal found 5/1C$ 1,267

Thu 22/16:00 a.m.YOW - SGN

2 stops27h 50mUnited Airlines

Mon 26/16:00 a.m.SGN - YOW

3 stops27h 56mUnited Airlines

Deal found 5/1C$ 1,268

Tue 22/97:45 p.m.YYZ - DAD

2 stops28h 50mMultiple Airlines

Tue 6/1012:55 p.m.DAD - YYZ

2 stops53h 04mMultiple Airlines

Deal found 6/1C$ 1,280

Sun 5/412:30 p.m.YYZ - DAD

2 stops44h 20mMultiple Airlines

Sun 10/54:20 p.m.DAD - YYZ

2 stops24h 53mMultiple Airlines

Deal found 5/1C$ 1,291

Sun 1/36:55 p.m.YYZ - SGN

2 stops40h 00mUnited Airlines

Sun 10/57:00 a.m.SGN - YYZ

2 stops26h 29mUnited Airlines

Deal found 6/1C$ 1,291

Fri 27/26:30 a.m.YYZ - SGN

2 stops29h 45mUnited Airlines

Sat 14/36:00 a.m.SGN - YYZ

2 stops29h 13mUnited Airlines

Deal found 5/1C$ 1,293

Sun 18/16:45 p.m.YYZ - DAD

2 stops33h 10mMultiple Airlines

Wed 28/14:55 p.m.DAD - YYZ

2 stops25h 13mMultiple Airlines

Deal found 4/1C$ 1,294

Wed 29/48:00 a.m.YYZ - SGN

1 stop26h 50mANA

Tue 19/57:00 a.m.SGN - YYZ

1 stop28h 04mANA

Deal found 5/1C$ 1,294

Sun 22/36:55 p.m.YYZ - SGN

1 stop41h 00mAsiana Airlines

Tue 21/47:00 a.m.SGN - YYZ

2 stops24h 00mAsiana Airlines

Deal found 4/1C$ 1,295

Best flights from Ontario to Vietnam
Discover carefully curated flight deals from Ontario to Vietnam that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 6 January 2026.

Mon 2/25:11 p.m.YOW - SGN

3 stops65h 44mUnited Airlines

Mon 9/26:00 a.m.SGN - YOW

3 stops47h 12mUnited Airlines

Deal found 5/1C$ 1,271

Tue 28/43:10 p.m.YYZ - HAN

1 stop40h 35mEtihad Airways

Sun 17/58:40 p.m.HAN - YYZ

1 stop23h 20mEtihad Airways

Deal found 5/1C$ 1,350

Thu 9/43:30 p.m.YYZ - HAN

1 stop39h 35mCathay Pacific

Sun 19/47:05 p.m.HAN - YYZ

1 stop21h 40mCathay Pacific

Deal found 4/1C$ 1,417

Tue 17/312:40 p.m.YYZ - DAD

1 stop38h 35mKorean Air

Tue 14/410:55 p.m.DAD - YYZ

2 stops29h 44mKorean Air

Deal found 5/1C$ 1,439

Mon 19/17:30 a.m.YUL - DAD

2 stops29h 00mMultiple Airlines

Wed 4/21:30 a.m.DAD - YUL

2 stops42h 13mMultiple Airlines

Deal found 5/1C$ 1,461

Mon 30/39:35 p.m.YUL - HAN

1 stop22h 40mQatar Airways

Tue 28/49:35 a.m.HAN - YUL

1 stop40h 10mQatar Airways

Deal found 5/1C$ 1,466

Mon 16/37:00 a.m.YUL - HAN

2 stops29h 05mANA

Sun 7/611:35 p.m.HAN - YUL

2 stops42h 24mANA

Deal found 6/1C$ 1,473

Mon 30/310:45 a.m.YTZ - SGN

2 stops26h 30mAir Canada

Mon 11/57:00 a.m.SGN - YTZ

2 stops25h 32mAir Canada

Deal found 5/1C$ 1,495

Wed 1/46:45 a.m.YTZ - SGN

2 stops44h 35mEmirates

Tue 21/45:10 p.m.SGN - YTZ

2 stops32h 12mEmirates

Deal found 4/1C$ 1,721

Thu 22/16:00 a.m.YOW - SGN

2 stops27h 50mUnited Airlines

Mon 26/16:00 a.m.SGN - YOW

3 stops29h 54mUnited Airlines

Deal found 4/1C$ 1,271

Wed 1/43:10 p.m.YYZ - HAN

2 stops34h 20mEtihad Airways

Tue 12/58:40 p.m.HAN - YYZ

1 stop23h 20mEtihad Airways

Deal found 5/1C$ 1,393

Tue 31/31:50 a.m.YYZ - HAN

1 stop29h 15mCathay Pacific

Tue 12/57:05 p.m.HAN - YYZ

1 stop21h 40mCathay Pacific

Deal found 5/1C$ 1,417

Sun 1/36:55 p.m.YYZ - SGN

2 stops40h 00mUnited Airlines

Sun 10/57:00 a.m.SGN - YYZ

2 stops26h 29mUnited Airlines

Deal found 6/1C$ 1,291

Mon 30/312:30 p.m.YYZ - DAD

1 stop21h 35mKorean Air

Tue 12/53:40 p.m.DAD - YYZ

2 stops41h 20mKorean Air

Deal found 5/1C$ 1,439

Sun 1/28:00 a.m.YYZ - DAD

2 stops28h 30mMultiple Airlines

Sun 15/211:00 p.m.DAD - YYZ

2 stops38h 17mMultiple Airlines

Deal found 6/1C$ 1,469

Mon 30/39:30 a.m.YTZ - HAN

2 stops25h 45mAir Canada

Mon 11/511:35 p.m.HAN - YTZ

2 stops31h 17mAir Canada

Deal found 6/1C$ 1,506

Thu 2/43:30 p.m.YYZ - HAN

1 stop39h 35mCathay Pacific

Tue 12/510:55 a.m.HAN - YYZ

1 stop29h 50mCathay Pacific

Deal found 5/1C$ 1,417

Mon 9/37:30 p.m.YOW - SGN

3 stops40h 25mUnited Airlines

Sun 22/36:00 a.m.SGN - YOW

3 stops39h 26mUnited Airlines

Deal found 5/1C$ 1,301

Thu 26/312:40 p.m.YYZ - DAD

1 stop38h 35mKorean Air

Sun 19/410:55 p.m.DAD - YYZ

2 stops35h 13mKorean Air

Deal found 4/1C$ 1,439

Thu 7/53:10 p.m.YYZ - HAN

1 stop28h 30mEtihad Airways

Sat 30/58:25 a.m.HAN - YYZ

1 stop35h 35mEtihad Airways

Deal found 5/1C$ 1,440

Tue 24/39:50 p.m.YUL - HAN

1 stop27h 30mQatar Airways

Thu 16/49:35 a.m.HAN - YUL

1 stop40h 10mQatar Airways

Deal found 6/1C$ 1,634

Wed 4/26:25 p.m.YUL - DAD

2 stops42h 05mMultiple Airlines

Wed 4/32:25 p.m.DAD - YUL

2 stops53h 57mMultiple Airlines

Deal found 6/1C$ 1,506

Sun 29/36:45 a.m.YTZ - SGN

2 stops44h 35mEmirates

Tue 21/45:10 p.m.SGN - YTZ

2 stops29h 42mEmirates

Deal found 4/1C$ 1,721

Sun 8/37:30 p.m.YOW - SGN

3 stops40h 25mUnited Airlines

Sun 22/36:00 a.m.SGN - YOW

3 stops50h 18mUnited Airlines

Deal found 5/1C$ 1,301

Fri 3/46:00 p.m.YUL - DAD

2 stops40h 35mAir Canada

Sat 16/511:05 p.m.DAD - YUL

2 stops36h 31mAir Canada

Deal found 3/1C$ 1,580

Sun 29/33:30 p.m.YYZ - HAN

1 stop39h 35mCathay Pacific

Wed 22/47:05 p.m.HAN - YYZ

1 stop21h 40mCathay Pacific

Deal found 5/1C$ 1,448

Sat 28/312:40 p.m.YYZ - DAD

1 stop21h 25mKorean Air

Sun 10/53:40 p.m.DAD - YYZ

2 stops43h 24mKorean Air

Deal found 5/1C$ 1,474

Mon 30/39:35 p.m.YUL - HAN

2 stops57h 30mQatar Airways

Mon 27/49:35 a.m.HAN - YUL

1 stop40h 10mQatar Airways

Deal found 5/1C$ 1,655

Tue 20/17:30 a.m.YUL - DAD

2 stops29h 00mMultiple Airlines

Wed 29/411:05 p.m.DAD - YUL

2 stops52h 53mMultiple Airlines

Deal found 6/1C$ 1,517

Tue 26/511:10 a.m.YUL - HAN

2 stops32h 30mEtihad Airways

Tue 16/68:40 p.m.HAN - YUL

2 stops27h 41mEtihad Airways

Deal found 6/1C$ 1,545

Last-minute flights from Ontario to Vietnam
Discover last-minute flight deals from Ontario to Vietnam. Data last updated 6 January 2026 and is based on user searches.

Sun 11/15:11 p.m.YOW - SGN

3 stops65h 44mUnited Airlines

Sat 7/26:00 a.m.SGN - YOW

3 stops47h 12mUnited Airlines

Deal found 4/1C$ 1,320

Sun 18/16:45 p.m.YYZ - DAD

2 stops33h 10mMultiple Airlines

Wed 28/14:55 p.m.DAD - YYZ

2 stops25h 13mMultiple Airlines

Deal found 4/1C$ 1,294

Thu 22/16:00 a.m.YOW - SGN

2 stops27h 50mUnited Airlines

Mon 26/16:00 a.m.SGN - YOW

3 stops27h 56mUnited Airlines

Deal found 5/1C$ 1,268

Thu 29/14:45 p.m.YYZ - SGN

2 stops29h 20mMultiple Airlines

Thu 5/31:55 a.m.SGN - YYZ

2 stops49h 40mMultiple Airlines

Deal found 6/1C$ 1,308

Sun 1/210:00 a.m.YYZ - SGN

2 stops51h 10mMultiple Airlines

Tue 10/34:40 a.m.SGN - YYZ

2 stops27h 42mMultiple Airlines

Deal found 6/1C$ 1,313

Mon 2/26:50 p.m.YYZ - SGN

2 stops28h 45mMultiple Airlines

Wed 1/41:50 a.m.SGN - YYZ

2 stops49h 04mMultiple Airlines

Deal found 5/1C$ 1,315

Sun 15/29:00 p.m.YYZ - SGN

3 stops37h 55mUnited Airlines

Sat 14/36:00 a.m.SGN - YYZ

2 stops29h 13mUnited Airlines

Deal found 5/1C$ 1,317

Tue 17/27:40 p.m.YYZ - SGN

3 stops39h 15mUnited Airlines

Sun 15/36:00 a.m.SGN - YYZ

3 stops38h 58mUnited Airlines

Deal found 5/1C$ 1,306

Fri 20/26:30 a.m.YYZ - SGN

2 stops28h 25mUnited Airlines

Sun 8/36:00 a.m.SGN - YYZ

2 stops36h 30mUnited Airlines

Deal found 5/1C$ 1,300

Mon 23/28:45 a.m.YYZ - SGN

2 stops49h 05mANA

Mon 4/57:00 a.m.SGN - YYZ

1 stop28h 04mANA

Deal found 4/1C$ 1,312

Thu 26/24:45 p.m.YYZ - HAN

2 stops30h 50mMultiple Airlines

Thu 21/56:00 p.m.HAN - YYZ

2 stops23h 59mMultiple Airlines

Deal found 6/1C$ 1,320

Fri 27/26:30 a.m.YYZ - SGN

2 stops29h 45mUnited Airlines

Sat 14/36:00 a.m.SGN - YYZ

2 stops29h 13mUnited Airlines

Deal found 5/1C$ 1,293

One-way flights from Ontario to Vietnam
Search for one-way flight options from Ontario to Vietnam. Find affordable one-way fares based on user searches. Data last updated 6 January 2026.

Mon 18/56:45 a.m.YUL - SGN

3 stops41h 40mMultiple Airlines

Deal found 6/1C$ 661

Wed 14/19:00 a.m.YUL - HAN

3 stops35h 50mMultiple Airlines

Deal found 4/1C$ 665

Wed 21/19:00 a.m.YUL - HAN

3 stops35h 50mMultiple Airlines

Deal found 6/1C$ 668

Thu 9/46:10 a.m.YUL - SGN

2 stops28h 45mANA

Deal found 4/1C$ 673

Wed 4/310:00 a.m.YYZ - SGN

2 stops48h 50mMultiple Airlines

Deal found 4/1C$ 675

Sat 31/14:45 p.m.YYZ - SGN

2 stops42h 05mMultiple Airlines

Deal found 4/1C$ 676

Thu 26/29:45 a.m.YYZ - SGN

3 stops47h 35mMultiple Airlines

Deal found 5/1C$ 681

Wed 18/27:30 p.m.YOW - SGN

3 stops39h 25mUnited Airlines

Deal found 4/1C$ 683

Tue 13/17:55 a.m.YYZ - SGN

2 stops28h 25mMultiple Airlines

Deal found 6/1C$ 684

Fri 16/19:45 a.m.YYZ - SGN

2 stops50h 35mMultiple Airlines

Deal found 6/1C$ 686

Wed 18/26:45 p.m.YUL - SGN

2 stops40h 10mUnited Airlines

Deal found 6/1C$ 687

Wed 14/13:45 p.m.YYZ - SGN

3 stops43h 10mUnited Airlines

Deal found 6/1C$ 687

Fly from

Fly to

Route

Depart

Return

Price

OttawaHo Chi Minh City

YOW - SGN

YOWSGN

Ottawa

Mon 2/2

5:11 p.m.-10:55 p.m.

3 stops65h 44m

Ho Chi Minh City

Mon 9/2

6:00 a.m.-5:12 p.m.

3 stops47h 12m

C$ 1,271

OttawaHo Chi Minh City

YOW - SGN

YOWSGN

Ottawa

Thu 22/1

6:00 a.m.-9:50 p.m.

2 stops27h 50m

Ho Chi Minh City

Mon 26/1

6:00 a.m.-11:54 p.m.

3 stops29h 54m

C$ 1,271

TorontoHo Chi Minh City

YYZ - SGN

YYZSGN

Toronto Pearson Intl

Sun 1/3

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

2 stops40h 00m

Ho Chi Minh City

Sun 10/5

7:00 a.m.-10:29 p.m.

2 stops26h 29m

C$ 1,291

OttawaHo Chi Minh City

YOW - SGN

YOWSGN

Ottawa

Mon 9/3

7:30 p.m.-10:55 p.m.

3 stops40h 25m

Ho Chi Minh City

Sun 22/3

6:00 a.m.-10:26 a.m.

3 stops39h 26m

C$ 1,301

OttawaHo Chi Minh City

YOW - SGN

YOWSGN

Ottawa

Sun 8/3

7:30 p.m.-10:55 p.m.

3 stops40h 25m

Ho Chi Minh City

Sun 22/3

6:00 a.m.-9:18 p.m.

3 stops50h 18m

C$ 1,301

TorontoHanoi

YYZ - HAN

YYZHAN

Toronto Pearson Intl

Tue 28/4

3:10 p.m.-6:45 p.m.

1 stop40h 35m

Hanoi Noibai

Sun 17/5

8:40 p.m.-9:00 a.m.

1 stop23h 20m

C$ 1,350

TorontoHanoi

YYZ - HAN

YYZHAN

Toronto Pearson Intl

Wed 1/4

3:10 p.m.-12:30 p.m.

2 stops34h 20m

Hanoi Noibai

Tue 12/5

8:40 p.m.-9:00 a.m.

1 stop23h 20m

C$ 1,393

TorontoHanoi

YYZ - HAN

YYZHAN

Toronto Pearson Intl

Thu 9/4

3:30 p.m.-6:05 p.m.

1 stop39h 35m

Hanoi Noibai

Sun 19/4

7:05 p.m.-5:45 a.m.

1 stop21h 40m

C$ 1,417

TorontoHanoi

YYZ - HAN

YYZHAN

Toronto Pearson Intl

Tue 31/3

1:50 a.m.-6:05 p.m.

1 stop29h 15m

Hanoi Noibai

Tue 12/5

7:05 p.m.-5:45 a.m.

1 stop21h 40m

C$ 1,417

TorontoHanoi

YYZ - HAN

YYZHAN

Toronto Pearson Intl

Thu 2/4

3:30 p.m.-6:05 p.m.

1 stop39h 35m

Hanoi Noibai

Tue 12/5

10:55 a.m.-5:45 a.m.

1 stop29h 50m

C$ 1,417

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/1

Showing 1-10 of 60 results

...

Best time to book a flight from Ontario to Vietnam

Have a flexible travel schedule? Discover the best time to fly to Vietnam 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 Vietnam

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

Currently, March is the cheapest month in which you can book a flight from Region of Ontario to Vietnam (average of C$ 768). Flying from Region of Ontario to Vietnam in June is currently the most expensive (average of C$ 1,322). 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.

Related info for your journey

How long is the flight from Region of Ontario to Vietnam?
United Airlines, Etihad Airways, and Korean Air can get you from Region of Ontario to Vietnam in just under 38h 35m. Your travel time can differ by up to 27h 09m. Region of Ontario and Vietnam are separated by a distance of 13317 km. Both multi-stop and direct flights can be found to your destination and back.
What are the cheapest airlines to fly from Region of Ontario to Vietnam one-way?
The cheapest airline one-way is Philippine Airlines, with whom users have recently found tickets for as low as C$ 493. However, be on the lookout for offers from China Eastern and American Airlines, as they are both options that can get you from Region of Ontario to Vietnam for a low price.
Can I find deals for flights from Ontario to Vietnam that include hotel bookings?
Yes. In addition to deals on Ontario to Vietnam flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Ontario to Vietnam?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Vietnam.
Can I find deals for business class flights from Ontario to Vietnam?
Yes. Cheapflights offers flight deals from Ontario to Vietnam 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 Vietnam?
Currently, March is the cheapest month in which you can book a flight from Region of Ontario to Vietnam (average of C$ 768). Flying from Region of Ontario to Vietnam in June is currently the most expensive (average of C$ 1,322). 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

Top 10 airlines flying from Ontario to Vietnam

Airline	Cheapest	Average	Flexibility	On-time
Philippine Airlines	CheapestC$ 895	AverageC$ 1,366	FlexibilityNo cancel fee	On-time60%	Search Philippine Airlines flights
American Airlines	CheapestC$ 1,022	AverageC$ 1,283	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights
Cathay Pacific	CheapestC$ 1,094	AverageC$ 1,885	FlexibilityNo cancel fee	On-time72%	Search Cathay Pacific flights
ANA	CheapestC$ 1,110	AverageC$ 1,256	FlexibilityNo cancel fee	On-time80%	Search ANA flights
United Airlines	CheapestC$ 1,143	AverageC$ 1,362	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Japan Airlines	CheapestC$ 1,159	AverageC$ 1,397	FlexibilityNo cancel fee	On-time79%	Search Japan Airlines flights
China Airlines	CheapestC$ 1,173	AverageC$ 1,911	FlexibilityNo cancel fee	On-time70%	Search China Airlines flights
China Eastern	CheapestC$ 1,204	AverageC$ 1,511	FlexibilityNo cancel fee	On-time62%	Search China Eastern flights
Air Canada	CheapestC$ 1,268	AverageC$ 1,554	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
Turkish Airlines	CheapestC$ 1,277	AverageC$ 1,460	FlexibilityNo cancel fee	On-time77%	Search Turkish Airlines flights

Fly with Cheapflights

How does Cheapflights help users find flights from Ontario to Vietnam?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Vietnam from Ontario today with Cheapflights!

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

Cheapflights simply makes it quick and affordable to book flights from Ontario to Vietnam by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Need flexible booking options for your flight to Vietnam from Ontario? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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Cheap flights from Ontario to Vietnam from C$ 621

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 4/5. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Ontario to Vietnam

Keep the following information in mind while searching for Ontario to Vietnam flight deals. Data was last updated 6 January 2026.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Ontario to Vietnam

Cheapest flights from Ontario to VietnamExplore the most affordable flight options available from Ontario to Vietnam. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 6 January 2026.

Explore the most affordable flight options available from Ontario to Vietnam. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 6 January 2026.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Ontario to Vietnam that are best for you.

Best time to book a flight from Ontario to Vietnam

Have a flexible travel schedule? Discover the best time to fly to Vietnam from Ontario with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Ontario to Vietnam

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

Related info for your journey

Find useful and relevant information for your journey from Ontario to Vietnam. 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 Vietnam?

What are the cheapest airlines to fly from Region of Ontario to Vietnam one-way?

Can I find deals for flights from Ontario to Vietnam that include hotel bookings?

How can I find direct flights from Ontario to Vietnam?

Can I find deals for business class flights from Ontario to Vietnam?

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

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 Vietnam

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

Top 10 airlines flying from Ontario to Vietnam

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 Vietnam?

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Cheapest flights from Ontario to Vietnam
Explore the most affordable flight options available from Ontario to Vietnam. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 6 January 2026.