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

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

What airlines fly to Vietnam?

Singapore Airlines, China Airlines and Asiana Airlines 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 28% 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 February 2026, there are 3 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.

$296 Cheap Flights from Ontario to Vietnam in 2026

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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.

7:00 am - 9:35 pm

ONT

HAN

24h 35m

2 stops

11:10 pm - 5:10 pm

HAN

ONT

32h 00m

2 stops

$635Delta

Wed, Apr 22 - Sat, May 9

7:00 am - 9:35 pm

ONT

HAN

24h 35m

2 stops

11:10 pm - 5:10 pm

HAN

ONT

32h 00m

2 stops

$640Korean Air

Tue, Apr 28 - Sun, May 10

7:00 am - 9:35 pm

ONT

HAN

24h 35m

2 stops

11:10 pm - 5:10 pm

HAN

ONT

32h 00m

2 stops

$685Delta

Tue, Apr 21 - Thu, May 7

12:10 am - 4:30 pm

ONT

DAD

26h 20m

1 stop

5:30 pm - 6:00 pm

DAD

ONT

38h 30m

1 stop

$691China Airlines

Sun, Apr 26 - Tue, May 26

12:10 am - 4:30 pm

ONT

DAD

26h 20m

1 stop

5:30 pm - 6:40 pm

DAD

ONT

39h 10m

1 stop

$692China Airlines

Sun, May 17 - Tue, Jul 7

6:00 am - 12:15 am

ONT

SGN

28h 15m

2 stops

7:00 am - 5:52 pm

SGN

ONT

24h 52m

2 stops

$717United Airlines

Tue, Apr 14 - Wed, May 13

11:10 pm - 5:35 pm

ONT

DAD

28h 25m

1 stop

6:45 pm - 5:05 pm

DAD

ONT

36h 20m

1 stop

$756STARLUX Airlines

Sat, Apr 4 - Tue, Apr 28

11:10 pm - 11:00 am

ONT

DAD

21h 50m

1 stop

6:45 pm - 5:05 pm

DAD

ONT

36h 20m

1 stop

$762STARLUX Airlines

Mon, May 11 - Sun, May 17

12:10 am - 4:30 pm

ONT

DAD

26h 20m

1 stop

5:30 pm - 11:58 pm

DAD

ONT

20h 28m

2 stops

$802Multiple Airlines

Sun, Apr 26 - Tue, May 26

12:10 am - 4:35 pm

ONT

DAD

26h 25m

1 stop

5:35 pm - 11:19 am

DAD

ONT

31h 44m

2 stops

$809Multiple Airlines

Sun, May 17 - Tue, Jul 7

United Airlines flights from Ontario to Vietnam

Our best United Airlines deals on Ontario to Vietnam flight tickets

United Airlines

Apr 14

ONT6:00 amOntario

28h 15m

2 stops

SGN12:15 amHo Chi Minh City

May 13

SGN7:00 amHo Chi Minh City

24h 52m

2 stops

ONT5:52 pmOntario

$717

United Airlines

Apr 7

ONT6:00 amOntario

28h 15m

2 stops

SGN12:15 amHo Chi Minh City

May 5

SGN7:00 amHo Chi Minh City

24h 52m

2 stops

ONT5:52 pmOntario

$733

United Airlines

Apr 7

ONT6:00 amOntario

28h 15m

2 stops

SGN12:15 amHo Chi Minh City

May 7

SGN7:00 amHo Chi Minh City

19h 22m

2 stops

ONT12:22 pmOntario

$734

Korean Air flights from Ontario to Vietnam

Our best Korean Air deals on Ontario to Vietnam flight tickets

Korean Air

Apr 28

ONT7:00 amOntario

24h 35m

2 stops

HAN9:35 pmHanoi Noibai

May 10

HAN11:10 pmHanoi Noibai

32h 00m

2 stops

ONT5:10 pmOntario

$640

Korean Air

Apr 28

ONT7:00 amOntario

24h 35m

2 stops

HAN9:35 pmHanoi Noibai

May 7

HAN11:10 pmHanoi Noibai

32h 00m

2 stops

ONT5:10 pmOntario

$690

Korean Air

Mar 9

ONT6:00 amOntario

26h 25m

2 stops

SGN10:25 pmHo Chi Minh City

Apr 17

SGN7:30 amHo Chi Minh City

23h 45m

2 stops

ONT5:15 pmOntario

$705

Fly from

Fly to

Route

Depart

Return

Price

OntarioHanoi

ONT - HAN

ONTHAN

Ontario

Wed 4/22

7:00 am-9:35 pm

2 stops24h 35m

Hanoi Noibai

Sat 5/9

11:10 pm-5:10 pm

2 stops32h 00m

$635

OntarioHanoi

ONT - HAN

ONTHAN

Ontario

Tue 4/28

7:00 am-9:35 pm

2 stops24h 35m

Hanoi Noibai

Sun 5/10

11:10 pm-5:10 pm

2 stops32h 00m

$640

OntarioHanoi

ONT - HAN

ONTHAN

Ontario

Tue 4/21

7:00 am-9:35 pm

2 stops24h 35m

Hanoi Noibai

Thu 5/7

11:10 pm-5:10 pm

2 stops32h 00m

$685

OntarioDa Nang

ONT - DAD

ONTDAD

Ontario

Sun 4/26

12:10 am-4:30 pm

1 stop26h 20m

Da Nang

Tue 5/26

5:30 pm-6:00 pm

1 stop38h 30m

$691

OntarioDa Nang

ONT - DAD

ONTDAD

Ontario

Sun 5/17

12:10 am-4:30 pm

1 stop26h 20m

Da Nang

Tue 7/7

5:30 pm-6:40 pm

1 stop39h 10m

$692

OntarioHo Chi Minh City

ONT - SGN

ONTSGN

Ontario

Tue 4/14

6:00 am-12:15 am

2 stops28h 15m

Ho Chi Minh City

Wed 5/13

7:00 am-5:52 pm

2 stops24h 52m

$717

OntarioDa Nang

ONT - DAD

ONTDAD

Ontario

Sat 4/4

11:10 pm-5:35 pm

1 stop28h 25m

Da Nang

Tue 4/28

6:45 pm-5:05 pm

1 stop36h 20m

$756

OntarioDa Nang

ONT - DAD

ONTDAD

Ontario

Mon 5/11

11:10 pm-11:00 am

1 stop21h 50m

Da Nang

Sun 5/17

6:45 pm-5:05 pm

1 stop36h 20m

$762

OntarioDa Nang

ONT - DAD

ONTDAD

Ontario

Sun 4/26

12:10 am-4:30 pm

1 stop26h 20m

Da Nang

Tue 5/26

5:30 pm-11:58 pm

2 stops20h 28m

$802

OntarioDa Nang

ONT - DAD

ONTDAD

Ontario

Sun 5/17

12:10 am-4:35 pm

1 stop26h 25m

Da Nang

Tue 7/7

5:35 pm-11:19 am

2 stops31h 44m

$809

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 November is, on average, the cheapest month to fly to Vietnam from Ontario, with most prices found around $773. If you don’t want to visit Vietnam in November, then you should wait until October to fly from Ontario, when ticket prices are also cheap, with an average price of $779.

How far in advance should I book a flight 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 $981 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 $777 on momondo.

Can stopping save me money on Ontario to Vietnam flights?

You could potentially save up to 17% 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 20m
Direct flights	None

The fastest flight from Ontario to Vietnam takes 19h 20m

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

Search flight deals

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 February 2026, there are 3 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
China Airlines	PriceFrom $304	Free Cancellation	Rating 8.3 804 reviews	Search China Airlines flights
Korean Air	PriceFrom $679	Free Cancellation	Rating 8.4 1,191 reviews	Search Korean Air flights
STARLUX Airlines	PriceFrom $745	Free Cancellation	Rating 8.9 274 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.