What airlines fly to Vietnam?

Singapore Airlines, China Airlines and Cathay Pacific 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 32% 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.

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

Delta, STARLUX Airlines, and Korean Air are the most popular carriers operating 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 August 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.

$404 Cheap Flights from Ontario to Vietnam in 2026

Discover deals from 900+ travel sites with momondo.

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.

11:30 pm - 5:35 pmONT Ontario-DAD Da Nang

28h 05m1 stop Taipei City Taiwan Taoyuan Intl

6:45 pm - 5:05 pmDAD Da Nang-ONT Ontario

36h 20m1 stop Taipei City Taiwan Taoyuan Intl

$774STARLUX Airlines

Fri, Sep 18 - Sun, Sep 27

11:55 pm - 5:35 pmONT Ontario-DAD Da Nang

27h 40m1 stop Taipei City Taiwan Taoyuan Intl

6:45 pm - 5:05 pmDAD Da Nang-ONT Ontario

36h 20m1 stop Taipei City Taiwan Taoyuan Intl

$774STARLUX Airlines

Fri, Aug 21 - Tue, Sep 1

12:45 am - 9:40 amONT Ontario-SGN Ho Chi Minh City

18h 55m1 stop Taipei City Taiwan Taoyuan Intl

10:50 am - 6:00 pmSGN Ho Chi Minh City-ONT Ontario

21h 10m1 stop Taipei City Taiwan Taoyuan Intl

$798China Airlines

Sun, Sep 13 - Wed, Sep 30

12:45 am - 9:40 amONT Ontario-SGN Ho Chi Minh City

18h 55m1 stop Taipei City Taiwan Taoyuan Intl

10:50 am - 6:00 pmSGN Ho Chi Minh City-ONT Ontario

21h 10m1 stop Taipei City Taiwan Taoyuan Intl

$800China Airlines

Mon, Sep 7 - Wed, Sep 16

6:02 am - 10:15 pmONT Ontario-SGN Ho Chi Minh City

26h 13m2 stops Seattle/Tacoma Intl Tokyo Narita

5:15 pm - 5:05 pmSGN Ho Chi Minh City-ONT Ontario

38h 50m1 stop Taipei City Taiwan Taoyuan Intl

$825Multiple Airlines

Sat, Oct 31 - Sun, Nov 15

6:20 am - 12:35 pmONT Ontario-SGN Ho Chi Minh City

40h 15m2 stops Seattle/Tacoma Intl Incheon Intl

8:00 am - 10:11 pmSGN Ho Chi Minh City-ONT Ontario

29h 11m2 stops Incheon Intl Salt Lake City

$842Delta

Thu, Oct 22 - Sat, Nov 7

6:00 am - 10:25 pmONT Ontario-SGN Ho Chi Minh City

25h 25m2 stops Salt Lake City Incheon Intl

8:00 am - 5:13 pmSGN Ho Chi Minh City-ONT Ontario

24h 13m2 stops Incheon Intl Seattle/Tacoma Intl

$842Delta

Thu, Nov 26 - Sat, Dec 12

6:20 am - 11:15 pmONT Ontario-SGN Ho Chi Minh City

26h 55m2 stops Seattle/Tacoma Intl Incheon Intl

11:45 pm - 5:19 pmSGN Ho Chi Minh City-ONT Ontario

31h 34m2 stops Incheon Intl Seattle/Tacoma Intl

$848Korean Air

Sun, Aug 30 - Wed, Sep 16

6:20 am - 11:15 pmONT Ontario-SGN Ho Chi Minh City

26h 55m2 stops Seattle/Tacoma Intl Incheon Intl

11:45 pm - 5:19 pmSGN Ho Chi Minh City-ONT Ontario

31h 34m2 stops Incheon Intl Seattle/Tacoma Intl

$848Korean Air

Tue, Sep 1 - Tue, Sep 15

6:00 am - 10:25 pmONT Ontario-SGN Ho Chi Minh City

25h 25m2 stops Seattle/Tacoma Intl Tokyo Narita

5:15 pm - 5:05 pmSGN Ho Chi Minh City-ONT Ontario

38h 50m1 stop Taipei City Taiwan Taoyuan Intl

$850Multiple Airlines

Mon, Feb 1 - Sun, Feb 7

Cheap last minute flights

Enter your travel dates to find the best prices.

11:55 pm - 5:35 pmONT Ontario-DAD Da Nang

27h 40m1 stop Taipei City Taiwan Taoyuan Intl

6:45 pm - 5:40 pmDAD Da Nang-ONT Ontario

36h 55m1 stop Taipei City Taiwan Taoyuan Intl

$777STARLUX Airlines

Wed, Aug 12 - Tue, Aug 25

12:45 am - 9:40 amONT Ontario-SGN Ho Chi Minh City

18h 55m1 stop Taipei City Taiwan Taoyuan Intl

10:50 am - 6:40 pmSGN Ho Chi Minh City-ONT Ontario

21h 50m1 stop Taipei City Taiwan Taoyuan Intl

$800China Airlines

Thu, Aug 13 - Thu, Aug 27

12:45 am - 4:20 pmONT Ontario-SGN Ho Chi Minh City

25h 35m1 stop Taipei City Taiwan Taoyuan Intl

10:50 am - 6:40 pmSGN Ho Chi Minh City-ONT Ontario

21h 50m1 stop Taipei City Taiwan Taoyuan Intl

$806China Airlines

Sat, Aug 15 - Mon, Aug 31

11:55 pm - 10:15 amONT Ontario-SGN Ho Chi Minh City

20h 20m1 stop Taipei City Taiwan Taoyuan Intl

11:30 am - 5:05 pmSGN Ho Chi Minh City-ONT Ontario

19h 35m1 stop Taipei City Taiwan Taoyuan Intl

$841STARLUX Airlines

Fri, Aug 14 - Wed, Sep 2

6:20 am - 11:15 pmONT Ontario-SGN Ho Chi Minh City

26h 55m2 stops Seattle/Tacoma Intl Incheon Intl

1:55 pm - 11:34 pmSGN Ho Chi Minh City-ONT Ontario

47h 39m2 stops Incheon Intl Salt Lake City

$842Delta

Thu, Aug 13 - Sat, Aug 29

6:00 am - 11:15 pmONT Ontario-SGN Ho Chi Minh City

27h 15m2 stops Salt Lake City Incheon Intl

11:45 pm - 10:45 pmSGN Ho Chi Minh City-ONT Ontario

37h 00m2 stops Incheon Intl Seattle/Tacoma Intl

$842Delta

Thu, Aug 13 - Thu, Sep 3

6:00 am - 10:10 pmONT Ontario-SGN Ho Chi Minh City

26h 10m2 stops Salt Lake City Incheon Intl

7:30 am - 5:19 pmSGN Ho Chi Minh City-ONT Ontario

23h 49m2 stops Incheon Intl Seattle/Tacoma Intl

$897Multiple Airlines

Fri, Aug 14 - Sat, Sep 12

6:00 am - 11:15 pmONT Ontario-SGN Ho Chi Minh City

27h 15m2 stops Salt Lake City Incheon Intl

11:45 pm - 11:34 pmSGN Ho Chi Minh City-ONT Ontario

37h 49m2 stops Incheon Intl Salt Lake City

$898Korean Air

Fri, Aug 14 - Tue, Aug 25

1:56 pm - 9:55 pmONT Ontario-SGN Ho Chi Minh City

41h 59m2 stops San Francisco Tokyo Haneda

7:00 am - 8:01 pmSGN Ho Chi Minh City-ONT Ontario

27h 01m2 stops Tokyo Narita San Francisco

$920United Airlines

Wed, Aug 12 - Wed, Sep 9

6:00 am - 11:15 pmONT Ontario-SGN Ho Chi Minh City

27h 15m2 stops Salt Lake City Incheon Intl

1:55 pm - 10:45 pmSGN Ho Chi Minh City-ONT Ontario

46h 50m2 stops Incheon Intl Seattle/Tacoma Intl

$1,051Korean Air

Fri, Aug 14 - Fri, Aug 21

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China Airlines flights from Ontario to Vietnam

Our best China Airlines deals on Ontario to Vietnam flight tickets

China Airlines

Sep 13

ONT12:45 amOntario

18h 55m

1 stop

SGN9:40 amHo Chi Minh City

Sep 30

SGN10:50 amHo Chi Minh City

21h 10m

1 stop

ONT6:00 pmOntario

$798

China Airlines

Sep 7

ONT12:45 amOntario

18h 55m

1 stop

SGN9:40 amHo Chi Minh City

Sep 16

SGN10:50 amHo Chi Minh City

21h 10m

1 stop

ONT6:00 pmOntario

$800

China Airlines

Oct 19

ONT12:10 amOntario

19h 30m

1 stop

SGN9:40 amHo Chi Minh City

Nov 17

SGN11:00 amHo Chi Minh City

21h 05m

1 stop

ONT5:05 pmOntario

$801

Delta flights from Ontario to Vietnam

Our best Delta deals on Ontario to Vietnam flight tickets

Delta

Aug 21

ONT6:20 amOntario

40h 15m

2 stops

SGN12:35 pmHo Chi Minh City

Sep 10

SGN1:55 pmHo Chi Minh City

46h 45m

2 stops

ONT10:40 pmOntario

$842

Delta

Sep 22

ONT1:04 pmOntario

44h 11m

2 stops

SGN11:15 pmHo Chi Minh City

Oct 16

SGN7:30 amHo Chi Minh City

30h 25m

2 stops

ONT11:55 pmOntario

$848

Delta

Aug 13

ONT6:00 amOntario

27h 15m

2 stops

SGN11:15 pmHo Chi Minh City

Aug 31

SGN7:30 amHo Chi Minh City

41h 46m

2 stops

ONT11:16 amOntario

$849

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioDa Nang

ONT Ontario - DAD Da Nang

ONTDAD

Ontario

Fri 9/18

11:30 pm-5:35 pm

1 stop28h 05m

Da Nang

Sun 9/27

6:45 pm-5:05 pm

1 stop36h 20m

$774

OntarioDa Nang

ONT Ontario - DAD Da Nang

ONTDAD

Ontario

Fri 8/21

11:55 pm-5:35 pm

1 stop27h 40m

Da Nang

Tue 9/1

6:45 pm-5:05 pm

1 stop36h 20m

$774

Quickest round-trip

OntarioHo Chi Minh City

ONT Ontario - SGN Ho Chi Minh City

ONTSGN

Ontario

Sun 9/13

12:45 am-9:40 am

1 stop18h 55m

Ho Chi Minh City

Wed 9/30

10:50 am-6:00 pm

1 stop21h 10m

$798

OntarioHo Chi Minh City

ONT Ontario - SGN Ho Chi Minh City

ONTSGN

Ontario

Mon 9/7

12:45 am-9:40 am

1 stop18h 55m

Ho Chi Minh City

Wed 9/16

10:50 am-6:00 pm

1 stop21h 10m

$800

OntarioHo Chi Minh City

ONT Ontario - SGN Ho Chi Minh City

ONTSGN

Ontario

Sat 10/31

6:02 am-10:15 pm

2 stops26h 13m

Ho Chi Minh City

Sun 11/15

5:15 pm-5:05 pm

1 stop38h 50m

$825

OntarioHo Chi Minh City

ONT Ontario - SGN Ho Chi Minh City

ONTSGN

Ontario

Thu 10/22

6:20 am-12:35 pm

2 stops40h 15m

Ho Chi Minh City

Sat 11/7

8:00 am-10:11 pm

2 stops29h 11m

$842

OntarioHo Chi Minh City

ONT Ontario - SGN Ho Chi Minh City

ONTSGN

Ontario

Thu 11/26

6:00 am-10:25 pm

2 stops25h 25m

Ho Chi Minh City

Sat 12/12

8:00 am-5:13 pm

2 stops24h 13m

$842

OntarioHo Chi Minh City

ONT Ontario - SGN Ho Chi Minh City

ONTSGN

Ontario

Sun 8/30

6:20 am-11:15 pm

2 stops26h 55m

Ho Chi Minh City

Wed 9/16

11:45 pm-5:19 pm

2 stops31h 34m

$848

OntarioHo Chi Minh City

ONT Ontario - SGN Ho Chi Minh City

ONTSGN

Ontario

Tue 9/1

6:20 am-11:15 pm

2 stops26h 55m

Ho Chi Minh City

Tue 9/15

11:45 pm-5:19 pm

2 stops31h 34m

$848

OntarioHo Chi Minh City

ONT Ontario - SGN Ho Chi Minh City

ONTSGN

Ontario

Mon 2/1

6:00 am-10:25 pm

2 stops25h 25m

Ho Chi Minh City

Sun 2/7

5:15 pm-5:05 pm

1 stop38h 50m

$850

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 $737. 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 $751.

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 $952 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 $761 on momondo.

Can stopping save me money on Ontario to Vietnam flights?

You could potentially save up to 8% 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 25m
Direct flights	None

The fastest flight from Ontario to Vietnam takes 19h 25m

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 August 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 $611	Free Cancellation	Rating 8.4 1,221 reviews	Search Korean Air flights
Delta	PriceFrom $656	Free Cancellation	Rating 7.8 8,505 reviews	Search Delta flights
China Airlines	PriceFrom $691	Free Cancellation	Rating 8.3 841 reviews	Search China Airlines flights
Asiana Airlines	PriceFrom $735	Free Cancellation	Rating 8.1 556 reviews	Search Asiana Airlines flights
STARLUX Airlines	PriceFrom $741	Free Cancellation	Rating 8.8 367 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.