What is the cheapest airline that flies from Ontario to Vietnam?

Delta, Korean Air, and China Airlines are the most popular carriers operating from Ontario to Vietnam

What airlines fly to Vietnam?

Singapore Airlines, China Airlines and Cathay Pacific are the top three most popular airlines that fly to Vietnam from Ontario according to our data. Singapore Airlines is the first choice among our users, with 32% of people opting to fly with this airline when traveling to Vietnam. Keep in mind that there are 21 different airlines that fly to Vietnam on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Ontario Airport to Vietnam?

Prices for flights from Ontario Airport to Vietnam are refreshed on a daily basis.

How many operators does momondo search for flights from Ontario Airport to Vietnam?

As of July 2026, there are 5 operators available to choose from for flights from Ontario Airport to Vietnam.

How old do you have to be to fly from Ontario Airport to Vietnam?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Vietnam.

What documentation or ID do you need to fly to Vietnam?

The required travel and health documents for your Vietnam trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Vietnam. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$434 Cheap Flights from Ontario to Vietnam in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Ontario to Vietnam

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

12:10 am - 9:00 am

ONT

DAD

18h 50m

1 stop

10:00 am - 6:00 pm

DAD

ONT

22h 00m

1 stop

$886China Airlines

Mon, Sep 21 - Thu, Oct 22

12:45 am - 4:50 pm

ONT

HAN

26h 05m

1 stop

11:30 am - 6:00 pm

HAN

ONT

20h 30m

1 stop

$886China Airlines

Sat, Sep 12 - Tue, Sep 22

11:50 pm - 4:30 pm

ONT

HAN

26h 40m

1 stop

11:35 am - 5:05 pm

HAN

ONT

20h 30m

1 stop

$932China Airlines

Tue, Oct 27 - Tue, Nov 17

12:10 am - 4:50 pm

ONT

HAN

26h 40m

1 stop

11:35 am - 6:05 pm

HAN

ONT

20h 30m

1 stop

$956China Airlines

Tue, Sep 29 - Thu, Oct 29

12:45 am - 10:30 am

ONT

HAN

19h 45m

1 stop

5:50 pm - 6:40 pm

HAN

ONT

38h 50m

1 stop

$964China Airlines

Thu, Aug 20 - Thu, Sep 3

5:52 pm - 12:35 pm

ONT

SGN

52h 43m

2 stops

7:30 am - 5:12 pm

SGN

ONT

23h 42m

2 stops

$979Delta

Sun, Oct 11 - Fri, Oct 23

6:20 am - 11:15 pm

ONT

SGN

26h 55m

2 stops

8:00 am - 4:24 pm

SGN

ONT

23h 24m

2 stops

$984Delta

Tue, Oct 13 - Mon, Nov 2

7:05 am - 9:45 pm

ONT

SGN

48h 40m

2 stops

8:00 am - 8:09 pm

SGN

ONT

26h 09m

2 stops

$986American Airlines

Mon, Aug 24 - Mon, Sep 21

12:45 am - 9:40 am

ONT

SGN

18h 55m

1 stop

11:20 am - 6:40 pm

SGN

ONT

21h 20m

1 stop

$987Multiple Airlines

Thu, Aug 6 - Fri, Aug 28

12:10 am - 4:20 pm

ONT

SGN

26h 10m

1 stop

11:20 am - 6:00 pm

SGN

ONT

20h 40m

1 stop

$988Multiple Airlines

Wed, Sep 23 - Thu, Oct 15

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STARLUX Airlines flights from Ontario to Vietnam

Our best STARLUX Airlines deals on Ontario to Vietnam flight tickets

STARLUX Airlines

Sep 2

ONT11:30 pmOntario

27h 25m

1 stop

SGN4:55 pmHo Chi Minh City

Sep 27

SGN6:05 pmHo Chi Minh City

37h 00m

1 stop

ONT5:05 pmOntario

$1,000

STARLUX Airlines

Nov 18

ONT9:45 pmOntario

21h 45m

1 stop

SGN10:30 amHo Chi Minh City

Dec 3

SGN5:50 pmHo Chi Minh City

37h 05m

1 stop

ONT3:55 pmOntario

$1,002

STARLUX Airlines

Sep 11

ONT11:30 pmOntario

20h 45m

1 stop

SGN10:15 amHo Chi Minh City

Sep 19

SGN6:05 pmHo Chi Minh City

42h 38m

2 stops

ONT10:43 pmOntario

$1,017

China Airlines flights from Ontario to Vietnam

Our best China Airlines deals on Ontario to Vietnam flight tickets

China Airlines

Sep 12

ONT12:45 amOntario

26h 05m

1 stop

HAN4:50 pmHanoi Noibai

Sep 22

HAN11:30 amHanoi Noibai

20h 30m

1 stop

ONT6:00 pmOntario

$886

China Airlines

Aug 2

ONT12:45 amOntario

19h 45m

1 stop

HAN10:30 amHanoi Noibai

Aug 18

HAN11:30 amHanoi Noibai

21h 10m

1 stop

ONT6:40 pmOntario

$895

China Airlines

Oct 21

ONT12:10 amOntario

26h 40m

1 stop

HAN4:50 pmHanoi Noibai

Nov 1

HAN11:35 amHanoi Noibai

20h 30m

1 stop

ONT6:05 pmOntario

$913

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioDa Nang

ONT - DAD

ONTDAD

Ontario

Mon 9/21

12:10 am-9:00 am

1 stop18h 50m

Da Nang

Thu 10/22

10:00 am-6:00 pm

1 stop22h 00m

$886

OntarioHanoi

ONT - HAN

ONTHAN

Ontario

Sat 9/12

12:45 am-4:50 pm

1 stop26h 05m

Hanoi Noibai

Tue 9/22

11:30 am-6:00 pm

1 stop20h 30m

$886

OntarioHanoi

ONT - HAN

ONTHAN

Ontario

Tue 10/27

11:50 pm-4:30 pm

1 stop26h 40m

Hanoi Noibai

Tue 11/17

11:35 am-5:05 pm

1 stop20h 30m

$932

OntarioHanoi

ONT - HAN

ONTHAN

Ontario

Tue 9/29

12:10 am-4:50 pm

1 stop26h 40m

Hanoi Noibai

Thu 10/29

11:35 am-6:05 pm

1 stop20h 30m

$956

OntarioHanoi

ONT - HAN

ONTHAN

Ontario

Thu 8/20

12:45 am-10:30 am

1 stop19h 45m

Hanoi Noibai

Thu 9/3

5:50 pm-6:40 pm

1 stop38h 50m

$964

OntarioHo Chi Minh City

ONT - SGN

ONTSGN

Ontario

Sun 10/11

5:52 pm-12:35 pm

2 stops52h 43m

Ho Chi Minh City

Fri 10/23

7:30 am-5:12 pm

2 stops23h 42m

$979

OntarioHo Chi Minh City

ONT - SGN

ONTSGN

Ontario

Tue 10/13

6:20 am-11:15 pm

2 stops26h 55m

Ho Chi Minh City

Mon 11/2

8:00 am-4:24 pm

2 stops23h 24m

$984

OntarioHo Chi Minh City

ONT - SGN

ONTSGN

Ontario

Mon 8/24

7:05 am-9:45 pm

2 stops48h 40m

Ho Chi Minh City

Mon 9/21

8:00 am-8:09 pm

2 stops26h 09m

$986

Quickest round-trip

OntarioHo Chi Minh City

ONT - SGN

ONTSGN

Ontario

Thu 8/6

12:45 am-9:40 am

1 stop18h 55m

Ho Chi Minh City

Fri 8/28

11:20 am-6:40 pm

1 stop21h 20m

$987

OntarioHo Chi Minh City

ONT - SGN

ONTSGN

Ontario

Wed 9/23

12:10 am-4:20 pm

1 stop26h 10m

Ho Chi Minh City

Thu 10/15

11:20 am-6:00 pm

1 stop20h 40m

$988

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Ontario to Vietnam

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to Vietnam?

The month of March is, on average, the cheapest month to fly to Vietnam from Ontario, with most prices found around $737. If you don’t want to visit Vietnam in March, then you should wait until November to fly from Ontario, when ticket prices are also cheap, with an average price of $758.

How far in advance should I book a flight from Ontario to Vietnam?

You are more likely to see cheaper flights to Vietnam from Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to Vietnam for around $958 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Vietnam from Ontario for as low as $761 on momondo.

Can stopping save me money on Ontario to Vietnam flights?

You could potentially save up to 27% on your flight if you consider stops on a Ontario to Vietnam flight.

Cheap Ontario to Vietnam flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Vietnam

Fastest flight time	19h 25m
Direct flights	None

The fastest flight from Ontario to Vietnam takes 19h 25m

There are no direct flights from Ontario to Vietnam. There are no popular flight routes from Ontario to Vietnam.

Search flight deals

Frequently asked questions about flying from Ontario to Vietnam

When did momondo last update prices for flights from Ontario Airport to Vietnam?
Prices for flights from Ontario Airport to Vietnam are refreshed on a daily basis.
How many operators does momondo search for flights from Ontario Airport to Vietnam?
As of July 2026, there are 5 operators available to choose from for flights from Ontario Airport to Vietnam.
How old do you have to be to fly from Ontario Airport to Vietnam?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Vietnam.
What documentation or ID do you need to fly to Vietnam?
The required travel and health documents for your Vietnam trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Vietnam. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Ontario to Vietnam

Compare and see reviews for airlines that fly from Ontario to Vietnam with momondo

Airline	Rating	Free Cancellation	Price
Korean Air	PriceFrom $611	Free Cancellation	Rating 8.4 1,221 reviews	Search Korean Air flights
Delta	PriceFrom $656	Free Cancellation	Rating 7.8 8,482 reviews	Search Delta flights
China Airlines	PriceFrom $691	Free Cancellation	Rating 8.3 838 reviews	Search China Airlines flights
Asiana Airlines	PriceFrom $735	Free Cancellation	Rating 8.1 553 reviews	Search Asiana Airlines flights
STARLUX Airlines	PriceFrom $741	Free Cancellation	Rating 8.8 362 reviews	Search STARLUX Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Vietnam?

Finding the right flight to Vietnam from Ontario is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Vietnam quick and easy, saving you time and money.

Can I find flights from Ontario to Vietnam with flexible booking policies on momondo?

momondo does allow users to show only those flights to Vietnam from Ontario which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Ontario to Vietnam?

Once all potential Ontario to Vietnam flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Ontario to Vietnam right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Vietnam, momondo offers a useful price alert feature which will track prices for flights to Vietnam from Ontario and alert you when they change.