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 30% 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 April 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.

$362 Cheap Flights from Ontario to Vietnam in 2026

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

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 - 10:40 pm

HAN

ONT

37h 30m

2 stops

$710Delta

Mon, Aug 31 - Tue, Sep 15

7:00 am - 9:35 pm

ONT

HAN

24h 35m

2 stops

11:10 pm - 10:40 pm

HAN

ONT

37h 30m

2 stops

$740Delta

Mon, Aug 31 - Thu, Sep 10

12:10 am - 9:40 am

ONT

SGN

19h 30m

1 stop

11:20 am - 6:00 pm

SGN

ONT

20h 40m

1 stop

$743Multiple Airlines

Thu, Oct 1 - Sat, Oct 24

12:45 am - 4:20 pm

ONT

SGN

25h 35m

1 stop

11:20 am - 6:40 pm

SGN

ONT

21h 20m

1 stop

$744Multiple Airlines

Thu, Sep 3 - Tue, Sep 15

12:45 am - 9:40 am

ONT

SGN

18h 55m

1 stop

5:30 pm - 6:00 pm

SGN

ONT

38h 30m

1 stop

$754China Airlines

Fri, Aug 28 - Thu, Sep 17

12:45 am - 9:40 am

ONT

SGN

18h 55m

1 stop

10:50 am - 6:40 pm

SGN

ONT

21h 50m

1 stop

$755China Airlines

Wed, Aug 19 - Sat, Aug 29

12:45 am - 9:40 am

ONT

SGN

18h 55m

1 stop

5:30 pm - 6:40 pm

SGN

ONT

39h 10m

1 stop

$756China Airlines

Mon, Aug 31 - Fri, Sep 11

7:00 am - 10:10 pm

ONT

SGN

25h 10m

2 stops

7:30 am - 5:10 pm

SGN

ONT

23h 40m

2 stops

$765Delta

Tue, May 5 - Wed, May 27

6:20 am - 11:15 pm

ONT

SGN

26h 55m

2 stops

7:30 am - 5:16 pm

SGN

ONT

23h 46m

2 stops

$771Korean Air

Fri, Aug 7 - Fri, Sep 18

11:10 pm - 5:35 pm

ONT

DAD

28h 25m

1 stop

12:10 pm - 5:05 pm

DAD

ONT

18h 55m

1 stop

$898STARLUX Airlines

Wed, May 6 - Mon, May 18

United Airlines flights from Ontario to Vietnam

Our best United Airlines deals on Ontario to Vietnam flight tickets

United Airlines

Sep 1

ONT8:00 amOntario

23h 55m

2 stops

SGN9:55 pmHo Chi Minh City

Oct 6

SGN11:15 pmHo Chi Minh City

37h 51m

2 stops

ONT11:06 pmOntario

$791

United Airlines

Sep 1

ONT8:00 amOntario

24h 05m

3 stops

SGN10:05 pmHo Chi Minh City

Oct 6

SGN7:00 amHo Chi Minh City

24h 47m

2 stops

ONT5:47 pmOntario

$798

United Airlines

Sep 1

ONT8:00 amOntario

23h 55m

2 stops

SGN9:55 pmHo Chi Minh City

Sep 29

SGN7:00 amHo Chi Minh City

19h 20m

2 stops

ONT12:20 pmOntario

$810

STARLUX Airlines flights from Ontario to Vietnam

Our best STARLUX Airlines deals on Ontario to Vietnam flight tickets

STARLUX Airlines

Aug 28

ONT11:45 pmOntario

27h 10m

1 stop

SGN4:55 pmHo Chi Minh City

Sep 8

SGN6:05 pmHo Chi Minh City

37h 00m

1 stop

ONT5:05 pmOntario

$829

STARLUX Airlines

Aug 10

ONT11:45 pmOntario

20h 30m

1 stop

SGN10:15 amHo Chi Minh City

Aug 22

SGN11:30 amHo Chi Minh City

20h 10m

1 stop

ONT5:40 pmOntario

$832

STARLUX Airlines

Sep 2

ONT11:10 pmOntario

21h 05m

1 stop

SGN10:15 amHo Chi Minh City

Sep 23

SGN11:30 amHo Chi Minh City

19h 35m

1 stop

ONT5:05 pmOntario

$834

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioHanoi

ONT - HAN

ONTHAN

Ontario

Mon 8/31

7:00 am-9:35 pm

2 stops24h 35m

Hanoi Noibai

Tue 9/15

11:10 pm-10:40 pm

2 stops37h 30m

$710

OntarioHanoi

ONT - HAN

ONTHAN

Ontario

Mon 8/31

7:00 am-9:35 pm

2 stops24h 35m

Hanoi Noibai

Thu 9/10

11:10 pm-10:40 pm

2 stops37h 30m

$740

Quickest round-trip

OntarioHo Chi Minh City

ONT - SGN

ONTSGN

Ontario

Thu 10/1

12:10 am-9:40 am

1 stop19h 30m

Ho Chi Minh City

Sat 10/24

11:20 am-6:00 pm

1 stop20h 40m

$743

OntarioHo Chi Minh City

ONT - SGN

ONTSGN

Ontario

Thu 9/3

12:45 am-4:20 pm

1 stop25h 35m

Ho Chi Minh City

Tue 9/15

11:20 am-6:40 pm

1 stop21h 20m

$744

OntarioHo Chi Minh City

ONT - SGN

ONTSGN

Ontario

Fri 8/28

12:45 am-9:40 am

1 stop18h 55m

Ho Chi Minh City

Thu 9/17

5:30 pm-6:00 pm

1 stop38h 30m

$754

OntarioHo Chi Minh City

ONT - SGN

ONTSGN

Ontario

Wed 8/19

12:45 am-9:40 am

1 stop18h 55m

Ho Chi Minh City

Sat 8/29

10:50 am-6:40 pm

1 stop21h 50m

$755

OntarioHo Chi Minh City

ONT - SGN

ONTSGN

Ontario

Mon 8/31

12:45 am-9:40 am

1 stop18h 55m

Ho Chi Minh City

Fri 9/11

5:30 pm-6:40 pm

1 stop39h 10m

$756

OntarioHo Chi Minh City

ONT - SGN

ONTSGN

Ontario

Tue 5/5

7:00 am-10:10 pm

2 stops25h 10m

Ho Chi Minh City

Wed 5/27

7:30 am-5:10 pm

2 stops23h 40m

$765

OntarioHo Chi Minh City

ONT - SGN

ONTSGN

Ontario

Fri 8/7

6:20 am-11:15 pm

2 stops26h 55m

Ho Chi Minh City

Fri 9/18

7:30 am-5:16 pm

2 stops23h 46m

$771

OntarioDa Nang

ONT - DAD

ONTDAD

Ontario

Wed 5/6

11:10 pm-5:35 pm

1 stop28h 25m

Da Nang

Mon 5/18

12:10 pm-5:05 pm

1 stop18h 55m

$898

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 $736. 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 $762.

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 $930 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 $764 on momondo.

Can stopping save me money on Ontario to Vietnam flights?

You could potentially save up to 25% 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

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 April 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 8,386 reviews	Search Delta flights
China Airlines	PriceFrom $696	Free Cancellation	Rating 8.3 816 reviews	Search China Airlines flights
Asiana Airlines	PriceFrom $735	Free Cancellation	Rating 8.1 510 reviews	Search Asiana Airlines flights
STARLUX Airlines	PriceFrom $742	Free Cancellation	Rating 8.9 295 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.