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

Korean Air, Delta, 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 20 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 March 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.

$377 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 - 4:20 pm

ONT

SGN

25h 35m

1 stop

10:50 am - 6:40 pm

SGN

ONT

21h 50m

1 stop

$728China Airlines

Fri, Aug 14 - Sat, Sep 5

7:00 am - 9:35 pm

ONT

HAN

24h 35m

2 stops

12:05 pm - 5:10 pm

HAN

ONT

43h 05m

2 stops

$730Korean Air

Mon, Apr 20 - Wed, May 6

12:10 am - 4:20 pm

ONT

SGN

26h 10m

1 stop

10:50 am - 6:00 pm

SGN

ONT

21h 10m

1 stop

$739China Airlines

Thu, Sep 17 - Sat, Oct 3

12:45 am - 9:40 am

ONT

SGN

18h 55m

1 stop

10:50 am - 6:00 pm

SGN

ONT

21h 10m

1 stop

$741China Airlines

Sun, Aug 30 - Mon, Sep 28

12:45 am - 9:40 am

ONT

SGN

18h 55m

1 stop

10:50 am - 6:40 pm

SGN

ONT

21h 50m

1 stop

$743China Airlines

Sat, Aug 15 - Sat, Sep 5

12:45 am - 10:30 am

ONT

HAN

19h 45m

1 stop

11:30 am - 6:00 pm

HAN

ONT

20h 30m

1 stop

$750China Airlines

Mon, Sep 14 - Tue, Sep 29

7:00 am - 9:35 pm

ONT

HAN

24h 35m

2 stops

11:10 pm - 5:10 pm

HAN

ONT

32h 00m

2 stops

$760Delta

Sun, Apr 26 - Sun, May 10

7:00 am - 11:15 pm

ONT

SGN

26h 15m

2 stops

1:55 pm - 5:10 pm

SGN

ONT

41h 15m

2 stops

$760Korean Air

Mon, Apr 27 - Wed, May 13

7:00 am - 9:35 pm

ONT

HAN

24h 35m

2 stops

11:10 pm - 5:10 pm

HAN

ONT

32h 00m

2 stops

$810Delta

Sat, Apr 25 - Wed, May 13

7:00 am - 9:35 pm

ONT

HAN

24h 35m

2 stops

11:10 pm - 11:34 pm

HAN

ONT

38h 24m

2 stops

$811Delta

Wed, Apr 15 - Thu, May 7

STARLUX Airlines flights from Ontario to Vietnam

Our best STARLUX Airlines deals on Ontario to Vietnam flight tickets

STARLUX Airlines

Aug 1

ONT11:45 pmOntario

27h 10m

1 stop

SGN4:55 pmHo Chi Minh City

Sep 7

SGN11:30 amHo Chi Minh City

19h 35m

1 stop

ONT5:05 pmOntario

$827

STARLUX Airlines

Sep 5

ONT11:10 pmOntario

28h 25m

1 stop

DAD5:35 pmDa Nang

Sep 8

DAD6:45 pmDa Nang

36h 20m

1 stop

ONT5:05 pmOntario

$839

STARLUX Airlines

Aug 1

ONT11:45 pmOntario

27h 50m

1 stop

DAD5:35 pmDa Nang

Aug 14

DAD6:45 pmDa Nang

36h 55m

1 stop

ONT5:40 pmOntario

$865

Korean Air flights from Ontario to Vietnam

Our best Korean Air deals on Ontario to Vietnam flight tickets

Korean Air

Apr 20

ONT7:00 amOntario

24h 35m

2 stops

HAN9:35 pmHanoi Noibai

May 6

HAN12:05 pmHanoi Noibai

43h 05m

2 stops

ONT5:10 pmOntario

$730

Korean Air

Apr 27

ONT7:00 amOntario

26h 15m

2 stops

SGN11:15 pmHo Chi Minh City

May 13

SGN1:55 pmHo Chi Minh City

41h 15m

2 stops

ONT5:10 pmOntario

$760

Korean Air

Apr 21

ONT7:00 amOntario

24h 35m

2 stops

HAN9:35 pmHanoi Noibai

May 11

HAN11:10 pmHanoi Noibai

32h 00m

2 stops

ONT5:10 pmOntario

$766

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioHo Chi Minh City

ONT - SGN

ONTSGN

Ontario

Fri 8/14

12:45 am-4:20 pm

1 stop25h 35m

Ho Chi Minh City

Sat 9/5

10:50 am-6:40 pm

1 stop21h 50m

$728

OntarioHanoi

ONT - HAN

ONTHAN

Ontario

Mon 4/20

7:00 am-9:35 pm

2 stops24h 35m

Hanoi Noibai

Wed 5/6

12:05 pm-5:10 pm

2 stops43h 05m

$730

OntarioHo Chi Minh City

ONT - SGN

ONTSGN

Ontario

Thu 9/17

12:10 am-4:20 pm

1 stop26h 10m

Ho Chi Minh City

Sat 10/3

10:50 am-6:00 pm

1 stop21h 10m

$739

Quickest round-trip

OntarioHo Chi Minh City

ONT - SGN

ONTSGN

Ontario

Sun 8/30

12:45 am-9:40 am

1 stop18h 55m

Ho Chi Minh City

Mon 9/28

10:50 am-6:00 pm

1 stop21h 10m

$741

OntarioHo Chi Minh City

ONT - SGN

ONTSGN

Ontario

Sat 8/15

12:45 am-9:40 am

1 stop18h 55m

Ho Chi Minh City

Sat 9/5

10:50 am-6:40 pm

1 stop21h 50m

$743

OntarioHanoi

ONT - HAN

ONTHAN

Ontario

Mon 9/14

12:45 am-10:30 am

1 stop19h 45m

Hanoi Noibai

Tue 9/29

11:30 am-6:00 pm

1 stop20h 30m

$750

OntarioHanoi

ONT - HAN

ONTHAN

Ontario

Sun 4/26

7:00 am-9:35 pm

2 stops24h 35m

Hanoi Noibai

Sun 5/10

11:10 pm-5:10 pm

2 stops32h 00m

$760

OntarioHo Chi Minh City

ONT - SGN

ONTSGN

Ontario

Mon 4/27

7:00 am-11:15 pm

2 stops26h 15m

Ho Chi Minh City

Wed 5/13

1:55 pm-5:10 pm

2 stops41h 15m

$760

OntarioHanoi

ONT - HAN

ONTHAN

Ontario

Sat 4/25

7:00 am-9:35 pm

2 stops24h 35m

Hanoi Noibai

Wed 5/13

11:10 pm-5:10 pm

2 stops32h 00m

$810

OntarioHanoi

ONT - HAN

ONTHAN

Ontario

Wed 4/15

7:00 am-9:35 pm

2 stops24h 35m

Hanoi Noibai

Thu 5/7

11:10 pm-11:34 pm

2 stops38h 24m

$811

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 $762. If you don’t want to visit Vietnam in November, then you should wait until March to fly from Ontario, when ticket prices are also cheap, with an average price of $766.

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 $957 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 $765 on momondo.

Can stopping save me money on Ontario to Vietnam flights?

You could potentially save up to 22% 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	18h 50m
Direct flights	None

The fastest flight from Ontario to Vietnam takes 18h 50m

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 March 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 $649	Free Cancellation	Rating 8.4 1,203 reviews	Search Korean Air flights
Delta	PriceFrom $654	Free Cancellation	Rating 7.9 8,363 reviews	Search Delta flights
China Airlines	PriceFrom $697	Free Cancellation	Rating 8.3 817 reviews	Search China Airlines flights
Asiana Airlines	PriceFrom $735	Free Cancellation	Rating 8.1 507 reviews	Search Asiana Airlines flights
STARLUX Airlines	PriceFrom $742	Free Cancellation	Rating 9.0 293 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.