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

United Airlines, Cathay Pacific, and Delta can get you from Region of Ontario to Vietnam in just under 28h 45m. Your travel time can differ by up to 15h. Region of Ontario and Vietnam are separated by a distance of 12592 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$ 489. 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$ 645+ Flights from Ontario to Vietnam

Cheap 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 28 December 2025.

Sun 28/1212:35 a.m.YYZ - SGN

1 stop22h 00mCathay Pacific

Tue 20/11:50 p.m.SGN - YYZ

1 stop34h 25mCathay Pacific

Deal found 28/12C$ 1,376

Wed 31/123:45 p.m.YYZ - SGN

3 stops43h 10mUnited Airlines

Wed 7/16:00 a.m.SGN - YYZ

3 stops29h 59mUnited Airlines

Deal found 26/12C$ 1,382

Mon 29/121:55 p.m.YYZ - SGN

1 stop32h 40mCathay Pacific

Mon 19/17:35 p.m.SGN - YYZ

1 stop37h 25mCathay Pacific

Deal found 26/12C$ 1,386

Sat 27/122:45 p.m.YYZ - SGN

3 stops44h 10mUnited Airlines

Fri 30/16:00 a.m.SGN - YYZ

3 stops39h 58mUnited Airlines

Deal found 25/12C$ 1,466

Mon 29/1212:35 a.m.YYZ - SGN

1 stop22h 00mCathay Pacific

Mon 19/111:35 a.m.SGN - YYZ

1 stop36h 40mCathay Pacific

Deal found 28/12C$ 1,476

Mon 29/124:45 p.m.YUL - SGN

2 stops65h 05mUnited Airlines

Sun 1/26:00 a.m.SGN - YUL

3 stops40h 20mUnited Airlines

Deal found 26/12C$ 1,536

Sat 27/121:55 p.m.YYZ - SGN

1 stop32h 40mCathay Pacific

Sun 18/111:35 a.m.SGN - YYZ

1 stop36h 40mCathay Pacific

Deal found 26/12C$ 1,539

Tue 30/126:30 a.m.YYZ - SGN

2 stops28h 25mUnited Airlines

Tue 20/16:00 a.m.SGN - YYZ

2 stops46h 28mUnited Airlines

Deal found 26/12C$ 1,542

Tue 30/124:50 p.m.YYZ - SGN

2 stops29h 15mMultiple Airlines

Mon 19/13:45 p.m.SGN - YYZ

2 stops36h 43mMultiple Airlines

Deal found 27/12C$ 1,640

Fri 26/1212:35 a.m.YYZ - SGN

1 stop22h 00mCathay Pacific

Fri 30/111:35 a.m.SGN - YYZ

1 stop21h 25mCathay Pacific

Deal found 25/12C$ 1,655

Fri 26/1212:35 a.m.YYZ - SGN

1 stop30h 00mMultiple Airlines

Fri 30/110:15 p.m.SGN - YYZ

2 stops38h 23mMultiple Airlines

Deal found 25/12C$ 1,663

Mon 29/126:45 p.m.YYZ - SGN

2 stops27h 20mMultiple Airlines

Mon 19/112:45 p.m.SGN - YYZ

2 stops39h 43mMultiple Airlines

Deal found 26/12C$ 1,729

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 28 December 2025.

Tue 3/23:10 p.m.YOW - SGN

3 stops43h 45mUnited Airlines

Thu 7/57:00 a.m.SGN - YOW

2 stops25h 56mUnited Airlines

Deal found 26/12C$ 1,245

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

1 stop39h 35mCathay Pacific

Thu 23/47:05 p.m.HAN - YYZ

1 stop29h 45mCathay Pacific

Deal found 26/12C$ 1,358

Tue 20/16:05 p.m.YUL - DAD

2 stops34h 30mMultiple Airlines

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

2 stops32h 58mMultiple Airlines

Deal found 26/12C$ 1,408

Thu 12/36:20 a.m.YYZ - HAN

2 stops41h 50mDelta

Tue 31/311:10 p.m.HAN - YYZ

2 stops33h 44mDelta

Deal found 26/12C$ 1,428

Tue 21/47:45 a.m.YOW - HAN

2 stops27h 15mAir Canada

Wed 6/56:30 p.m.HAN - YOW

2 stops33h 10mAir Canada

Deal found 26/12C$ 1,513

Wed 15/48:55 p.m.YUL - HAN

1 stop30h 05mQatar Airways

Sat 9/59:35 a.m.HAN - YUL

1 stop40h 10mQatar Airways

Deal found 27/12C$ 1,517

Wed 18/312:40 p.m.YYZ - DAD

1 stop38h 35mKorean Air

Wed 25/33:45 p.m.DAD - YYZ

2 stops42h 13mKorean Air

Deal found 26/12C$ 1,596

Wed 28/17:10 a.m.YTZ - SGN

2 stops24h 25mEmirates

Mon 23/26:00 p.m.SGN - YTZ

2 stops32h 25mEmirates

Deal found 26/12C$ 1,926

Tue 3/23:10 p.m.YOW - SGN

3 stops43h 45mUnited Airlines

Sun 3/57:00 a.m.SGN - YOW

3 stops38h 03mUnited Airlines

Deal found 26/12C$ 1,274

Tue 7/43:30 p.m.YYZ - HAN

1 stop39h 35mCathay Pacific

Thu 23/47:05 p.m.HAN - YYZ

1 stop29h 45mCathay Pacific

Deal found 26/12C$ 1,358

Tue 3/23:10 p.m.YOW - SGN

3 stops43h 45mUnited Airlines

Fri 1/57:00 a.m.SGN - YOW

3 stops37h 11mUnited Airlines

Deal found 26/12C$ 1,274

Wed 1/46:30 a.m.YYZ - HAN

2 stops41h 10mDelta

Thu 23/412:00 p.m.HAN - YYZ

2 stops22h 10mDelta

Deal found 26/12C$ 1,428

Wed 28/17:30 a.m.YUL - DAD

2 stops29h 00mMultiple Airlines

Wed 15/411:05 p.m.DAD - YUL

2 stops29h 00mMultiple Airlines

Deal found 26/12C$ 1,453

Wed 18/31:50 p.m.YUL - HAN

1 stop22h 15mAir Canada

Tue 7/411:30 p.m.HAN - YUL

2 stops54h 42mAir Canada

Deal found 27/12C$ 1,544

Thu 29/15:30 p.m.YYZ - SGN

3 stops41h 25mUnited Airlines

Fri 6/36:00 a.m.SGN - YYZ

2 stops37h 30mUnited Airlines

Deal found 25/12C$ 1,281

Mon 6/46:10 p.m.YYZ - HAN

2 stops40h 25mDelta

Thu 23/412:00 p.m.HAN - YYZ

2 stops41h 32mDelta

Deal found 26/12C$ 1,428

Wed 8/46:00 p.m.YOW - HAN

2 stops28h 55mMultiple Airlines

Tue 28/48:45 p.m.HAN - YOW

2 stops30h 08mMultiple Airlines

Deal found 26/12C$ 1,465

Wed 21/16:13 p.m.YYZ - DAD

2 stops56h 02mKorean Air

Sat 28/23:45 p.m.DAD - YYZ

2 stops37h 33mKorean Air

Deal found 27/12C$ 1,628

Sat 14/26:50 p.m.YYZ - SGN

3 stops40h 05mUnited Airlines

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

2 stops36h 30mUnited Airlines

Deal found 27/12C$ 1,281

Thu 26/26:00 a.m.YUL - SGN

2 stops29h 20mDelta

Tue 31/31:55 p.m.SGN - YUL

2 stops44h 45mDelta

Deal found 26/12C$ 1,458

Tue 20/112:07 p.m.YYZ - DAD

2 stops62h 08mKorean Air

Thu 26/23:45 p.m.DAD - YYZ

2 stops37h 33mKorean Air

Deal found 27/12C$ 1,628

Sun 15/27:45 a.m.YOW - HAN

2 stops60h 50mAir Canada

Sat 7/39:40 a.m.HAN - YOW

2 stops56h 03mAir Canada

Deal found 27/12C$ 1,652

Fri 9/13:50 p.m.YUL - HAN

2 stops42h 40mMultiple Airlines

Sat 24/111:55 p.m.HAN - YUL

2 stops51h 13mMultiple Airlines

Deal found 27/12C$ 1,522

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

2 stops28h 25mUnited Airlines

Fri 15/57:00 a.m.SGN - YYZ

3 stops42h 16mUnited Airlines

Deal found 27/12C$ 1,281

Wed 28/17:10 a.m.YTZ - SGN

2 stops24h 25mEmirates

Tue 17/26:00 p.m.SGN - YTZ

2 stops29h 55mEmirates

Deal found 26/12C$ 1,926

Sun 1/36:30 a.m.YYZ - HAN

2 stops27h 15mDelta

Sun 29/311:10 p.m.HAN - YYZ

2 stops35h 47mDelta

Deal found 26/12C$ 1,464

Sun 15/312:40 p.m.YYZ - DAD

1 stop21h 50mKorean Air

Thu 19/33:45 p.m.DAD - YYZ

2 stops42h 13mKorean Air

Deal found 24/12C$ 1,630

Mon 26/17:30 a.m.YUL - DAD

2 stops29h 00mMultiple Airlines

Sun 8/212:30 a.m.DAD - YUL

1 stop28h 35mMultiple Airlines

Deal found 27/12C$ 1,527

Mon 19/16:20 a.m.YOW - SGN

3 stops52h 35mUnited Airlines

Sun 12/47:00 a.m.SGN - YOW

3 stops38h 03mUnited Airlines

Deal found 26/12C$ 1,296

Mon 26/17:10 a.m.YTZ - SGN

2 stops42h 45mEmirates

Tue 17/26:00 p.m.SGN - YTZ

2 stops29h 55mEmirates

Deal found 26/12C$ 1,926

Last-minute flights from Ontario to Vietnam
Discover last-minute flight deals from Ontario to Vietnam. Data last updated 28 December 2025 and is based on user searches.

Wed 31/1212:35 a.m.YYZ - SGN

1 stop22h 00mCathay Pacific

Thu 15/17:15 a.m.SGN - YYZ

1 stop25h 45mCathay Pacific

Deal found 26/12C$ 1,276

Sun 11/16:45 p.m.YYZ - DAD

2 stops33h 10mMultiple Airlines

Sun 8/24:55 p.m.DAD - YYZ

2 stops25h 15mMultiple Airlines

Deal found 27/12C$ 1,245

Mon 12/16:45 p.m.YYZ - DAD

2 stops33h 10mMultiple Airlines

Mon 26/14:55 p.m.DAD - YYZ

2 stops33h 40mMultiple Airlines

Deal found 27/12C$ 1,173

Thu 15/16:30 a.m.YYZ - DAD

2 stops45h 25mMultiple Airlines

Sat 24/14:55 p.m.DAD - YYZ

2 stops25h 13mMultiple Airlines

Deal found 25/12C$ 1,199

Sat 17/112:45 p.m.YYZ - SGN

2 stops46h 10mUnited Airlines

Sun 8/26:00 a.m.SGN - YYZ

2 stops30h 05mUnited Airlines

Deal found 26/12C$ 1,268

Sun 18/19:45 a.m.YYZ - SGN

2 stops51h 25mMultiple Airlines

Sun 15/32:10 a.m.SGN - YYZ

2 stops39h 30mMultiple Airlines

Deal found 26/12C$ 1,251

Fri 23/16:55 p.m.YYZ - SGN

3 stops40h 00mUnited Airlines

Sun 8/26:00 a.m.SGN - YYZ

3 stops27h 24mUnited Airlines

Deal found 27/12C$ 1,270

Sat 24/13:25 p.m.YYZ - SGN

1 stop21h 45mChina Eastern

Sat 31/14:55 p.m.SGN - YYZ

3 stops56h 30mChina Eastern

Deal found 27/12C$ 1,255

Sat 24/14:55 p.m.YYZ - SGN

2 stops42h 00mUnited Airlines

Fri 6/36:00 a.m.SGN - YYZ

2 stops37h 30mUnited Airlines

Deal found 25/12C$ 1,281

Mon 26/14:55 p.m.YYZ - SGN

1 stop42h 00mANA

Mon 2/211:05 p.m.SGN - YYZ

2 stops27h 09mANA

Deal found 27/12C$ 1,279

Tue 27/15:55 p.m.YYZ - DAD

2 stops34h 00mMultiple Airlines

Thu 5/34:55 p.m.DAD - YYZ

2 stops32h 10mMultiple Airlines

Deal found 27/12C$ 1,282

Wed 28/19:45 a.m.YYZ - DAD

2 stops42h 10mMultiple Airlines

Wed 4/34:55 p.m.DAD - YYZ

2 stops25h 45mMultiple Airlines

Deal found 27/12C$ 1,190

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 28 December 2025.

Wed 8/48:30 a.m.YUL - SGN

2 stops50h 25mANA

Deal found 26/12C$ 645

Thu 15/12:05 p.m.YTZ - SGN

3 stops32h 30mMultiple Airlines

Deal found 25/12C$ 668

Wed 22/42:45 p.m.YYZ - SGN

2 stops44h 10mANA

Deal found 28/12C$ 668

Sat 11/46:30 p.m.YYZ - SGN

3 stops53h 30mMultiple Airlines

Deal found 26/12C$ 670

Wed 29/48:50 a.m.YYZ - SGN

2 stops28h 25mANA

Deal found 26/12C$ 671

Thu 5/37:45 a.m.YYZ - SGN

3 stops36h 40mMultiple Airlines

Deal found 25/12C$ 677

Thu 15/13:40 p.m.YYZ - SGN

3 stops30h 55mMultiple Airlines

Deal found 25/12C$ 678

Fri 23/110:30 a.m.YYZ - SGN

3 stops49h 45mMultiple Airlines

Deal found 26/12C$ 679

Mon 9/210:00 a.m.YYZ - SGN

2 stops44h 35mMultiple Airlines

Deal found 26/12C$ 682

Wed 21/16:55 p.m.YYZ - SGN

2 stops40h 00mUnited Airlines

Deal found 26/12C$ 683

Wed 8/45:35 p.m.YUL - SGN

3 stops41h 15mUnited Airlines

Deal found 26/12C$ 687

Sat 17/18:25 a.m.YUL - SGN

3 stops74h 30mUnited Airlines

Deal found 26/12C$ 694

Find flight deals from Ontario to Vietnam

Round-trip from	C$ 1,144
One-way from	C$ 645
Popular in	December
Cheapest in	September
Average price	C$ 1,882

2/3-10/3
4 total stops
66h 55m total
Ontario to Vietnam

Search Deals

ANA
8/4
2 total stops
50h 25m 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$ 35 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

OttawaHo Chi Minh City

YOW - SGN

YOWSGN

Ottawa

Tue 3/2

3:10 p.m.-10:55 p.m.

3 stops43h 45m

Ho Chi Minh City

Thu 7/5

7:00 a.m.-9:56 p.m.

2 stops25h 56m

C$ 1,245

OttawaHo Chi Minh City

YOW - SGN

YOWSGN

Ottawa

Tue 3/2

3:10 p.m.-10:55 p.m.

3 stops43h 45m

Ho Chi Minh City

Sun 3/5

7:00 a.m.-10:03 a.m.

3 stops38h 03m

C$ 1,274

OttawaHo Chi Minh City

YOW - SGN

YOWSGN

Ottawa

Tue 3/2

3:10 p.m.-10:55 p.m.

3 stops43h 45m

Ho Chi Minh City

Fri 1/5

7:00 a.m.-9:11 a.m.

3 stops37h 11m

C$ 1,274

TorontoHo Chi Minh City

YYZ - SGN

YYZSGN

Toronto Pearson Intl

Thu 29/1

5:30 p.m.-10:55 p.m.

3 stops41h 25m

Ho Chi Minh City

Fri 6/3

6:00 a.m.-7:30 a.m.

2 stops37h 30m

C$ 1,281

TorontoHo Chi Minh City

YYZ - SGN

YYZSGN

Toronto Pearson Intl

Sat 14/2

6:50 p.m.-10:55 p.m.

3 stops40h 05m

Ho Chi Minh City

Sun 8/3

6:00 a.m.-6:30 a.m.

2 stops36h 30m

C$ 1,281

TorontoHo Chi Minh City

YYZ - SGN

YYZSGN

Toronto Pearson Intl

Fri 20/2

6:30 a.m.-10:55 p.m.

2 stops28h 25m

Ho Chi Minh City

Fri 15/5

7:00 a.m.-2:16 p.m.

3 stops42h 16m

C$ 1,281

OttawaHo Chi Minh City

YOW - SGN

YOWSGN

Ottawa

Mon 19/1

6:20 a.m.-10:55 p.m.

3 stops52h 35m

Ho Chi Minh City

Sun 12/4

7:00 a.m.-10:03 a.m.

3 stops38h 03m

C$ 1,296

TorontoHanoi

YYZ - HAN

YYZHAN

Toronto Pearson Intl

Thu 9/4

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

1 stop39h 35m

Hanoi Noibai

Thu 23/4

7:05 p.m.-1:50 p.m.

1 stop29h 45m

C$ 1,358

TorontoHanoi

YYZ - HAN

YYZHAN

Toronto Pearson Intl

Tue 7/4

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

1 stop39h 35m

Hanoi Noibai

Thu 23/4

7:05 p.m.-1:50 p.m.

1 stop29h 45m

C$ 1,358

MontrealDa Nang

YUL - DAD

YULDAD

Montreal Pierre Elliott Trudeau Intl

Tue 20/1

6:05 p.m.-4:35 p.m.

2 stops34h 30m

Da Nang

Wed 29/4

11:05 p.m.-9:03 p.m.

2 stops32h 58m

C$ 1,408

Flights are sorted by cheapest round-trip flights first.

Deals found on 25/12

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$ 763). Flying from Region of Ontario to Vietnam in June is currently the most expensive (average of C$ 1,312). 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, Cathay Pacific, and Delta can get you from Region of Ontario to Vietnam in just under 28h 45m. Your travel time can differ by up to 15h. Region of Ontario and Vietnam are separated by a distance of 12592 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$ 489. 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$ 763). Flying from Region of Ontario to Vietnam in June is currently the most expensive (average of C$ 1,312). 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$ 888	AverageC$ 1,357	FlexibilityNo cancel fee	On-time60%	Search Philippine Airlines flights
American Airlines	CheapestC$ 1,014	AverageC$ 1,275	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights
Cathay Pacific	CheapestC$ 1,086	AverageC$ 1,905	FlexibilityNo cancel fee	On-time72%	Search Cathay Pacific flights
ANA	CheapestC$ 1,102	AverageC$ 1,247	FlexibilityNo cancel fee	On-time80%	Search ANA flights
United Airlines	CheapestC$ 1,133	AverageC$ 1,352	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Japan Airlines	CheapestC$ 1,152	AverageC$ 1,392	FlexibilityNo cancel fee	On-time79%	Search Japan Airlines flights
China Airlines	CheapestC$ 1,165	AverageC$ 1,888	FlexibilityNo cancel fee	On-time70%	Search China Airlines flights
China Eastern	CheapestC$ 1,196	AverageC$ 1,511	FlexibilityNo cancel fee	On-time62%	Search China Eastern flights
Air Canada	CheapestC$ 1,261	AverageC$ 1,539	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
Turkish Airlines	CheapestC$ 1,268	AverageC$ 1,449	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$ 645

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 8/4. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap 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 28 December 2025.

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 28 December 2025.

Find flight deals from Ontario to Vietnam

Keep the following information in mind while searching for Ontario to Vietnam flight deals. Data was last updated 28 December 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

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 28 December 2025.