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

Korean Air, China Airlines, and Delta 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 30% 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.

$502 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.

12:10 am - 4:20 pm

ONT

SGN

26h 10m

1 stop

11:20 am - 6:00 pm

SGN

ONT

20h 40m

1 stop

$975Multiple Airlines

Tue, Sep 22 - Tue, Oct 13

12:10 am - 9:40 am

ONT

SGN

19h 30m

1 stop

11:20 am - 4:50 pm

SGN

ONT

20h 30m

1 stop

$979Multiple Airlines

Wed, Sep 30 - Tue, Dec 15

12:45 am - 9:40 am

ONT

SGN

18h 55m

1 stop

10:50 am - 6:40 pm

SGN

ONT

21h 50m

1 stop

$988China Airlines

Tue, Aug 4 - Mon, Aug 31

12:45 am - 9:40 am

ONT

SGN

18h 55m

1 stop

5:30 pm - 6:40 pm

SGN

ONT

39h 10m

1 stop

$989China Airlines

Tue, Aug 4 - Wed, Aug 19

12:45 am - 9:40 am

ONT

SGN

18h 55m

1 stop

10:50 am - 6:00 pm

SGN

ONT

21h 10m

1 stop

$990China Airlines

Thu, Sep 3 - Fri, Sep 25

12:45 am - 9:40 am

ONT

SGN

18h 55m

1 stop

10:50 am - 6:40 pm

SGN

ONT

21h 50m

1 stop

$991China Airlines

Sat, Aug 15 - Wed, Aug 19

12:45 am - 1:00 am

ONT

HAN

34h 15m

2 stops

9:05 pm - 6:00 pm

HAN

ONT

34h 55m

2 stops

$1,002Multiple Airlines

Mon, Sep 7 - Wed, Sep 23

11:55 pm - 5:35 pm

ONT

DAD

27h 40m

1 stop

6:45 pm - 5:05 pm

DAD

ONT

36h 20m

1 stop

$1,026STARLUX Airlines

Fri, Aug 21 - Sun, Sep 6

11:30 pm - 4:50 pm

ONT

HAN

27h 20m

1 stop

11:10 am - 5:05 pm

HAN

ONT

19h 55m

1 stop

$1,029STARLUX Airlines

Mon, Sep 21 - Mon, Oct 19

11:55 pm - 4:50 pm

ONT

HAN

26h 55m

1 stop

11:10 am - 5:40 pm

HAN

ONT

20h 30m

1 stop

$1,031STARLUX Airlines

Mon, Aug 10 - Mon, Aug 24

Korean Air flights from Ontario to Vietnam

Our best Korean Air deals on Ontario to Vietnam flight tickets

Korean Air

Aug 27

ONT6:20 amOntario

26h 55m

2 stops

SGN11:15 pmHo Chi Minh City

Sep 17

SGN7:30 amHo Chi Minh City

29h 10m

2 stops

ONT10:40 pmOntario

$1,017

Korean Air

Oct 21

ONT7:00 amOntario

24h 35m

2 stops

HAN9:35 pmHanoi Noibai

Nov 4

HAN11:05 pmHanoi Noibai

33h 12m

2 stops

ONT5:17 pmOntario

$1,044

Korean Air

Aug 17

ONT6:20 amOntario

25h 50m

2 stops

SGN10:10 pmHo Chi Minh City

Sep 25

SGN7:30 amHo Chi Minh City

23h 46m

2 stops

ONT5:16 pmOntario

$1,075

Delta flights from Ontario to Vietnam

Our best Delta deals on Ontario to Vietnam flight tickets

Delta

Sep 24

ONT7:00 amOntario

25h 10m

2 stops

SGN10:10 pmHo Chi Minh City

Oct 22

SGN7:30 amHo Chi Minh City

23h 47m

2 stops

ONT5:17 pmOntario

$1,026

Delta

Aug 30

ONT6:01 pmOntario

39h 14m

2 stops

SGN11:15 pmHo Chi Minh City

Sep 13

SGN11:45 pmHo Chi Minh City

36h 55m

2 stops

ONT10:40 pmOntario

$1,031

Delta

Oct 25

ONT1:00 pmOntario

43h 25m

2 stops

SGN10:25 pmHo Chi Minh City

Nov 9

SGN2:05 pmHo Chi Minh City

41h 07m

2 stops

ONT4:12 pmOntario

$1,032

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioHo Chi Minh City

ONT - SGN

ONTSGN

Ontario

Tue 9/22

12:10 am-4:20 pm

1 stop26h 10m

Ho Chi Minh City

Tue 10/13

11:20 am-6:00 pm

1 stop20h 40m

$975

Quickest round-trip

OntarioHo Chi Minh City

ONT - SGN

ONTSGN

Ontario

Wed 9/30

12:10 am-9:40 am

1 stop19h 30m

Ho Chi Minh City

Tue 12/15

11:20 am-4:50 pm

1 stop20h 30m

$979

OntarioHo Chi Minh City

ONT - SGN

ONTSGN

Ontario

Tue 8/4

12:45 am-9:40 am

1 stop18h 55m

Ho Chi Minh City

Mon 8/31

10:50 am-6:40 pm

1 stop21h 50m

$988

OntarioHo Chi Minh City

ONT - SGN

ONTSGN

Ontario

Tue 8/4

12:45 am-9:40 am

1 stop18h 55m

Ho Chi Minh City

Wed 8/19

5:30 pm-6:40 pm

1 stop39h 10m

$989

OntarioHo Chi Minh City

ONT - SGN

ONTSGN

Ontario

Thu 9/3

12:45 am-9:40 am

1 stop18h 55m

Ho Chi Minh City

Fri 9/25

10:50 am-6:00 pm

1 stop21h 10m

$990

OntarioHo Chi Minh City

ONT - SGN

ONTSGN

Ontario

Sat 8/15

12:45 am-9:40 am

1 stop18h 55m

Ho Chi Minh City

Wed 8/19

10:50 am-6:40 pm

1 stop21h 50m

$991

OntarioHanoi

ONT - HAN

ONTHAN

Ontario

Mon 9/7

12:45 am-1:00 am

2 stops34h 15m

Hanoi Noibai

Wed 9/23

9:05 pm-6:00 pm

2 stops34h 55m

$1,002

OntarioDa Nang

ONT - DAD

ONTDAD

Ontario

Fri 8/21

11:55 pm-5:35 pm

1 stop27h 40m

Da Nang

Sun 9/6

6:45 pm-5:05 pm

1 stop36h 20m

$1,026

OntarioHanoi

ONT - HAN

ONTHAN

Ontario

Mon 9/21

11:30 pm-4:50 pm

1 stop27h 20m

Hanoi Noibai

Mon 10/19

11:10 am-5:05 pm

1 stop19h 55m

$1,029

OntarioHanoi

ONT - HAN

ONTHAN

Ontario

Mon 8/10

11:55 pm-4:50 pm

1 stop26h 55m

Hanoi Noibai

Mon 8/24

11:10 am-5:40 pm

1 stop20h 30m

$1,031

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 $933 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 33% 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	20h 10m
Direct flights	None

The fastest flight from Ontario to Vietnam takes 20h 10m

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 8.1 534 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 8,454 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 8.9 316 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.