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, Asiana Airlines and China 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 29% 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 May 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.

$525 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.

12:45 am - 9:40 am

ONT

SGN

18h 55m

1 stop

10:50 am - 6:40 pm

SGN

ONT

21h 50m

1 stop

$998China Airlines

Wed, Aug 5 - Thu, Aug 20

12:45 am - 4:20 pm

ONT

SGN

25h 35m

1 stop

10:50 am - 6:40 pm

SGN

ONT

21h 50m

1 stop

$999China Airlines

Sat, Aug 1 - Mon, Aug 17

12:45 am - 4:20 pm

ONT

SGN

25h 35m

1 stop

10:50 am - 6:40 pm

SGN

ONT

21h 50m

1 stop

$1,000China Airlines

Wed, Aug 5 - Tue, Aug 25

6:20 am - 9:35 pm

ONT

HAN

25h 15m

2 stops

11:10 pm - 10:40 pm

HAN

ONT

37h 30m

2 stops

$1,001Delta

Mon, Aug 24 - Sun, Sep 20

12:45 am - 4:20 pm

ONT

SGN

25h 35m

1 stop

5:30 pm - 6:40 pm

SGN

ONT

39h 10m

1 stop

$1,001China Airlines

Sat, Aug 1 - Sun, Sep 6

5:06 pm - 9:35 pm

ONT

HAN

38h 29m

2 stops

11:10 pm - 11:44 pm

HAN

ONT

38h 34m

2 stops

$1,007Delta

Sun, Aug 23 - Mon, Sep 21

9:45 pm - 10:30 am

ONT

HAN

21h 45m

1 stop

11:30 am - 4:30 pm

HAN

ONT

20h 00m

1 stop

$1,012STARLUX Airlines

Fri, Nov 6 - Fri, Nov 27

11:55 pm - 4:55 pm

ONT

SGN

27h 00m

1 stop

11:30 am - 5:40 pm

SGN

ONT

20h 10m

1 stop

$1,016STARLUX Airlines

Sat, Aug 1 - Mon, Aug 31

8:30 am - 7:15 am

ONT

HAN

32h 45m

2 stops

1:45 am - 6:32 pm

HAN

ONT

31h 47m

2 stops

$1,027Multiple Airlines

Tue, Sep 8 - Thu, Nov 19

6:54 pm - 1:55 pm

ONT

HAN

53h 01m

2 stops

7:30 pm - 6:00 pm

HAN

ONT

36h 30m

2 stops

$1,037Multiple Airlines

Mon, Oct 5 - Mon, Oct 19

STARLUX Airlines flights from Ontario to Vietnam

Our best STARLUX Airlines deals on Ontario to Vietnam flight tickets

STARLUX Airlines

Nov 6

ONT9:45 pmOntario

21h 45m

1 stop

HAN10:30 amHanoi Noibai

Nov 27

HAN11:30 amHanoi Noibai

20h 00m

1 stop

ONT4:30 pmOntario

$1,012

STARLUX Airlines

Sep 14

ONT11:30 pmOntario

20h 45m

1 stop

SGN10:15 amHo Chi Minh City

Dec 19

SGN11:40 amHo Chi Minh City

19h 50m

1 stop

ONT4:30 pmOntario

$1,013

STARLUX Airlines

Oct 30

ONT10:45 pmOntario

21h 45m

1 stop

SGN10:30 amHo Chi Minh City

Nov 30

SGN11:40 amHo Chi Minh City

19h 50m

1 stop

ONT4:30 pmOntario

$1,016

Korean Air flights from Ontario to Vietnam

Our best Korean Air deals on Ontario to Vietnam flight tickets

Korean Air

Sep 8

ONT7:00 amOntario

26h 15m

2 stops

SGN11:15 pmHo Chi Minh City

Sep 14

SGN7:30 amHo Chi Minh City

23h 46m

2 stops

ONT5:16 pmOntario

$931

Korean Air

Sep 5

ONT7:00 amOntario

26h 15m

2 stops

SGN11:15 pmHo Chi Minh City

Sep 15

SGN7:30 amHo Chi Minh City

23h 46m

2 stops

ONT5:16 pmOntario

$981

Korean Air

Oct 5

ONT7:00 amOntario

25h 10m

2 stops

SGN10:10 pmHo Chi Minh City

Oct 31

SGN8:00 amHo Chi Minh City

23h 17m

2 stops

ONT5:17 pmOntario

$1,031

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

OntarioHo Chi Minh City

ONT - SGN

ONTSGN

Ontario

Wed 8/5

12:45 am-9:40 am

1 stop18h 55m

Ho Chi Minh City

Thu 8/20

10:50 am-6:40 pm

1 stop21h 50m

$998

OntarioHo Chi Minh City

ONT - SGN

ONTSGN

Ontario

Sat 8/1

12:45 am-4:20 pm

1 stop25h 35m

Ho Chi Minh City

Mon 8/17

10:50 am-6:40 pm

1 stop21h 50m

$999

OntarioHo Chi Minh City

ONT - SGN

ONTSGN

Ontario

Wed 8/5

12:45 am-4:20 pm

1 stop25h 35m

Ho Chi Minh City

Tue 8/25

10:50 am-6:40 pm

1 stop21h 50m

$1,000

OntarioHanoi

ONT - HAN

ONTHAN

Ontario

Mon 8/24

6:20 am-9:35 pm

2 stops25h 15m

Hanoi Noibai

Sun 9/20

11:10 pm-10:40 pm

2 stops37h 30m

$1,001

OntarioHo Chi Minh City

ONT - SGN

ONTSGN

Ontario

Sat 8/1

12:45 am-4:20 pm

1 stop25h 35m

Ho Chi Minh City

Sun 9/6

5:30 pm-6:40 pm

1 stop39h 10m

$1,001

OntarioHanoi

ONT - HAN

ONTHAN

Ontario

Sun 8/23

5:06 pm-9:35 pm

2 stops38h 29m

Hanoi Noibai

Mon 9/21

11:10 pm-11:44 pm

2 stops38h 34m

$1,007

OntarioHanoi

ONT - HAN

ONTHAN

Ontario

Fri 11/6

9:45 pm-10:30 am

1 stop21h 45m

Hanoi Noibai

Fri 11/27

11:30 am-4:30 pm

1 stop20h 00m

$1,012

OntarioHo Chi Minh City

ONT - SGN

ONTSGN

Ontario

Sat 8/1

11:55 pm-4:55 pm

1 stop27h 00m

Ho Chi Minh City

Mon 8/31

11:30 am-5:40 pm

1 stop20h 10m

$1,016

OntarioHanoi

ONT - HAN

ONTHAN

Ontario

Tue 9/8

8:30 am-7:15 am

2 stops32h 45m

Hanoi Noibai

Thu 11/19

1:45 am-6:32 pm

2 stops31h 47m

$1,027

OntarioHanoi

ONT - HAN

ONTHAN

Ontario

Mon 10/5

6:54 pm-1:55 pm

2 stops53h 01m

Hanoi Noibai

Mon 10/19

7:30 pm-6:00 pm

2 stops36h 30m

$1,037

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 April is, on average, the cheapest month to fly to Vietnam from Ontario, with most prices found around $360. If you don’t want to visit Vietnam in April, then you should wait until October to fly from Ontario, when ticket prices are also cheap, with an average price of $458.

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 $929 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 $773 on momondo.

Can stopping save me money on Ontario to Vietnam flights?

You could potentially save up to 16% 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

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 May 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
Asiana Airlines	PriceFrom $640	Free Cancellation	Rating 8.1 532 reviews	Search Asiana Airlines flights
Korean Air	PriceFrom $649	Free Cancellation	Rating 8.4 1,217 reviews	Search Korean Air flights
Delta	PriceFrom $654	Free Cancellation	Rating 7.9 8,448 reviews	Search Delta flights
China Airlines	PriceFrom $691	Free Cancellation	Rating 8.3 826 reviews	Search China Airlines flights
STARLUX Airlines	PriceFrom $741	Free Cancellation	Rating 8.9 313 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.