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 35% of people opting to fly with this airline when traveling to Vietnam. Keep in mind that there are 22 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?

Korean Air, Delta, and United Airlines 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 November 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.

$413 Cheap Flights from Ontario to Vietnam in 2026/27

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.

7:00 am - 9:45 pmONT Ontario-HAN Hanoi Noibai

23h 45m2 stops Seattle/Tacoma Intl Incheon Intl

11:05 pm - 10:35 pmHAN Hanoi Noibai-ONT Ontario

38h 30m2 stops Incheon Intl Seattle/Tacoma Intl

$733Delta

Mon, Jan 25 - Thu, Feb 4

7:00 am - 9:45 pmONT Ontario-HAN Hanoi Noibai

23h 45m2 stops Seattle/Tacoma Intl Incheon Intl

11:05 pm - 4:12 pmHAN Hanoi Noibai-ONT Ontario

32h 07m2 stops Incheon Intl Salt Lake City

$782Delta

Sun, Feb 28 - Mon, Mar 8

5:47 pm - 2:15 pmONT Ontario-DAD Da Nang

30h 28m2 stops Seattle/Tacoma Intl Incheon Intl

3:55 pm - 10:43 pmDAD Da Nang-ONT Ontario

44h 48m2 stops Incheon Intl Seattle/Tacoma Intl

$783Korean Air

Tue, Mar 16 - Tue, Mar 30

3:33 pm - 9:40 pmONT Ontario-DAD Da Nang

39h 07m2 stops Seattle/Tacoma Intl Incheon Intl

3:45 pm - 10:39 pmDAD Da Nang-ONT Ontario

45h 54m2 stops Incheon Intl Seattle/Tacoma Intl

$783Korean Air

Sat, Feb 27 - Wed, Mar 3

10:50 pm - 4:15 pmONT Ontario-SGN Ho Chi Minh City

26h 25m1 stop Taipei City Taiwan Taoyuan Intl

11:20 am - 5:05 pmSGN Ho Chi Minh City-ONT Ontario

20h 45m1 stop Taichung City ChingChuanKang

$855Multiple Airlines

Tue, Jan 5 - Wed, Jan 27

10:50 pm - 4:15 pmONT Ontario-SGN Ho Chi Minh City

26h 25m1 stop Taipei City Taiwan Taoyuan Intl

11:20 am - 5:05 pmSGN Ho Chi Minh City-ONT Ontario

20h 45m1 stop Taichung City ChingChuanKang

$869Multiple Airlines

Thu, Jan 7 - Sat, Jan 23

10:50 pm - 4:15 pmONT Ontario-SGN Ho Chi Minh City

26h 25m1 stop Taipei City Taiwan Taoyuan Intl

11:00 am - 5:05 pmSGN Ho Chi Minh City-ONT Ontario

21h 05m1 stop Taipei City Taiwan Taoyuan Intl

$877China Airlines

Tue, Jan 12 - Tue, Jan 26

10:50 pm - 4:15 pmONT Ontario-SGN Ho Chi Minh City

26h 25m1 stop Taipei City Taiwan Taoyuan Intl

11:00 am - 5:05 pmSGN Ho Chi Minh City-ONT Ontario

21h 05m1 stop Taipei City Taiwan Taoyuan Intl

$877China Airlines

Tue, Jan 12 - Tue, Jan 26

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

21h 05m1 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

$962STARLUX Airlines

Sat, Mar 27 - Sat, Apr 24

9:45 pm - 4:50 pmONT Ontario-SGN Ho Chi Minh City

28h 05m1 stop Taipei City Taiwan Taoyuan Intl

11:40 am - 3:55 pmSGN Ho Chi Minh City-ONT Ontario

19h 15m1 stop Taipei City Taiwan Taoyuan Intl

$969STARLUX Airlines

Fri, Jan 15 - Fri, Jan 22

Cheap last minute flights

Enter your travel dates to find the best prices.

5:56 pm - 11:50 pmONT Ontario-SGN Ho Chi Minh City

38h 54m2 stops Seattle/Tacoma Intl Incheon Intl

2:05 pm - 5:16 pmSGN Ho Chi Minh City-ONT Ontario

42h 11m2 stops Incheon Intl Seattle/Tacoma Intl

$843Delta

Sat, Nov 14 - Thu, Nov 19

5:56 pm - 11:50 pmONT Ontario-SGN Ho Chi Minh City

38h 54m2 stops Seattle/Tacoma Intl Incheon Intl

7:55 am - 11:00 pmSGN Ho Chi Minh City-ONT Ontario

30h 05m2 stops Incheon Intl Seattle/Tacoma Intl

$843Delta

Sat, Nov 14 - Wed, Nov 18

7:00 am - 12:50 pmONT Ontario-SGN Ho Chi Minh City

38h 50m2 stops Seattle/Tacoma Intl Incheon Intl

2:05 pm - 5:16 pmSGN Ho Chi Minh City-ONT Ontario

42h 11m2 stops Incheon Intl Seattle/Tacoma Intl

$893Korean Air

Tue, Nov 10 - Thu, Nov 26

7:00 am - 12:50 pmONT Ontario-SGN Ho Chi Minh City

38h 50m2 stops Seattle/Tacoma Intl Incheon Intl

2:05 pm - 5:15 pmSGN Ho Chi Minh City-ONT Ontario

42h 10m2 stops Incheon Intl Seattle/Tacoma Intl

$893Korean Air

Tue, Nov 10 - Tue, Dec 1

10:50 pm - 10:00 amONT Ontario-SGN Ho Chi Minh City

20h 10m1 stop Taipei City Taiwan Taoyuan Intl

11:00 am - 5:05 pmSGN Ho Chi Minh City-ONT Ontario

21h 05m1 stop Taipei City Taiwan Taoyuan Intl

$907China Airlines

Thu, Nov 12 - Tue, Jan 26

10:50 pm - 4:15 pmONT Ontario-SGN Ho Chi Minh City

26h 25m1 stop Taipei City Taiwan Taoyuan Intl

11:00 am - 5:05 pmSGN Ho Chi Minh City-ONT Ontario

21h 05m1 stop Taipei City Taiwan Taoyuan Intl

$918China Airlines

Wed, Nov 11 - Wed, Dec 9

10:50 pm - 10:00 amONT Ontario-SGN Ho Chi Minh City

20h 10m1 stop Taipei City Taiwan Taoyuan Intl

11:20 am - 5:05 pmSGN Ho Chi Minh City-ONT Ontario

20h 45m1 stop Taichung City ChingChuanKang

$931Multiple Airlines

Wed, Nov 11 - Wed, Dec 9

5:00 am - 12:15 amONT Ontario-SGN Ho Chi Minh City

28h 15m2 stops Denver Intl Tokyo Narita

11:30 pm - 8:15 pmSGN Ho Chi Minh City-ONT Ontario

35h 45m2 stops Tokyo Haneda San Francisco

$963United Airlines

Sat, Nov 14 - Mon, Nov 16

9:45 pm - 4:50 pmONT Ontario-SGN Ho Chi Minh City

28h 05m1 stop Taipei City Taiwan Taoyuan Intl

11:40 am - 3:55 pmSGN Ho Chi Minh City-ONT Ontario

19h 15m1 stop Taipei City Taiwan Taoyuan Intl

$977STARLUX Airlines

Mon, Nov 9 - Mon, Dec 14

9:45 pm - 4:50 pmONT Ontario-SGN Ho Chi Minh City

28h 05m1 stop Taipei City Taiwan Taoyuan Intl

6:00 pm - 3:55 pmSGN Ho Chi Minh City-ONT Ontario

36h 55m1 stop Taipei City Taiwan Taoyuan Intl

$979STARLUX Airlines

Mon, Nov 9 - Thu, Nov 12

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China Airlines flights from Ontario to Vietnam

Our best China Airlines deals on Ontario to Vietnam flight tickets

China Airlines

Jan 12

ONT10:50 pmOntario

26h 25m

1 stop

SGN4:15 pmHo Chi Minh City

Jan 26

SGN11:00 amHo Chi Minh City

21h 05m

1 stop

ONT5:05 pmOntario

$877

China Airlines

Jan 12

ONT10:50 pmOntario

26h 25m

1 stop

SGN4:15 pmHo Chi Minh City

Jan 23

SGN11:00 amHo Chi Minh City

21h 05m

1 stop

ONT5:05 pmOntario

$878

China Airlines

Jan 12

ONT10:50 pmOntario

26h 25m

1 stop

SGN4:15 pmHo Chi Minh City

Jan 26

SGN5:15 pmHo Chi Minh City

38h 50m

1 stop

ONT5:05 pmOntario

$881

Korean Air flights from Ontario to Vietnam

Our best Korean Air deals on Ontario to Vietnam flight tickets

Korean Air

Feb 13

ONT3:33 pmOntario

31h 42m

2 stops

DAD2:15 pmDa Nang

Feb 17

DAD11:00 pmDa Nang

38h 39m

2 stops

ONT10:39 pmOntario

$783

Korean Air

Feb 25

ONT7:00 amOntario

23h 45m

2 stops

HAN9:45 pmHanoi Noibai

Mar 1

HAN11:05 pmHanoi Noibai

30h 43m

2 stops

ONT2:48 pmOntario

$788

Korean Air

Nov 29

ONT7:00 amOntario

24h 25m

2 stops

SGN10:25 pmHo Chi Minh City

Dec 7

SGN7:55 amHo Chi Minh City

30h 04m

2 stops

ONT10:59 pmOntario

$843

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioHanoi

ONT Ontario - HAN Hanoi Noibai

ONTHAN

Ontario

Mon 1/25

7:00 am-9:45 pm

2 stops23h 45m

Hanoi Noibai

Thu 2/4

11:05 pm-10:35 pm

2 stops38h 30m

$733

OntarioHanoi

ONT Ontario - HAN Hanoi Noibai

ONTHAN

Ontario

Sun 2/28

7:00 am-9:45 pm

2 stops23h 45m

Hanoi Noibai

Mon 3/8

11:05 pm-4:12 pm

2 stops32h 07m

$782

OntarioDa Nang

ONT Ontario - DAD Da Nang

ONTDAD

Ontario

Tue 3/16

5:47 pm-2:15 pm

2 stops30h 28m

Da Nang

Tue 3/30

3:55 pm-10:43 pm

2 stops44h 48m

$783

OntarioDa Nang

ONT Ontario - DAD Da Nang

ONTDAD

Ontario

Sat 2/27

3:33 pm-9:40 pm

2 stops39h 07m

Da Nang

Wed 3/3

3:45 pm-10:39 pm

2 stops45h 54m

$783

OntarioHo Chi Minh City

ONT Ontario - SGN Ho Chi Minh City

ONTSGN

Ontario

Tue 1/5

10:50 pm-4:15 pm

1 stop26h 25m

Ho Chi Minh City

Wed 1/27

11:20 am-5:05 pm

1 stop20h 45m

$855

OntarioHo Chi Minh City

ONT Ontario - SGN Ho Chi Minh City

ONTSGN

Ontario

Thu 1/7

10:50 pm-4:15 pm

1 stop26h 25m

Ho Chi Minh City

Sat 1/23

11:20 am-5:05 pm

1 stop20h 45m

$869

OntarioHo Chi Minh City

ONT Ontario - SGN Ho Chi Minh City

ONTSGN

Ontario

Tue 1/12

10:50 pm-4:15 pm

1 stop26h 25m

Ho Chi Minh City

Tue 1/26

11:00 am-5:05 pm

1 stop21h 05m

$877

OntarioHo Chi Minh City

ONT Ontario - SGN Ho Chi Minh City

ONTSGN

Ontario

Tue 1/12

10:50 pm-4:15 pm

1 stop26h 25m

Ho Chi Minh City

Tue 1/26

11:00 am-5:05 pm

1 stop21h 05m

$877

Quickest round-trip

OntarioHo Chi Minh City

ONT Ontario - SGN Ho Chi Minh City

ONTSGN

Ontario

Sat 3/27

11:10 pm-10:15 am

1 stop21h 05m

Ho Chi Minh City

Sat 4/24

11:30 am-5:05 pm

1 stop19h 35m

$962

OntarioHo Chi Minh City

ONT Ontario - SGN Ho Chi Minh City

ONTSGN

Ontario

Fri 1/15

9:45 pm-4:50 pm

1 stop28h 05m

Ho Chi Minh City

Fri 1/22

11:40 am-3:55 pm

1 stop19h 15m

$969

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 $762. If you don’t want to visit Vietnam in March, then you should wait until April to fly from Ontario, when ticket prices are also cheap, with an average price of $780.

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 $973 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 $844 on momondo.

Can stopping save me money on Ontario to Vietnam flights?

You could potentially save up to 18% 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

Best Price Found	$413
Fastest flight time	19h 25m
Direct flights	None

The best one-way flight to Vietnam from Ontario in the past 72 hours is $413. The best round-trip flight deal from Ontario to Vietnam found on momondo in the last 72 hours is $733.

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 November 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 1,218 reviews	Search Korean Air flights
Delta	PriceFrom $656	Free Cancellation	Rating 7.8 8,699 reviews	Search Delta flights
China Airlines	PriceFrom $692	Free Cancellation	Rating 8.3 856 reviews	Search China Airlines flights
Asiana Airlines	PriceFrom $735	Free Cancellation	Rating 8.1 570 reviews	Search Asiana Airlines flights
STARLUX Airlines	PriceFrom $743	Free Cancellation	Rating 8.8 414 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.