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Cheap flights from Ontario to Vietnam from $330

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Vietnam departing on 2/16. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Ontario to Vietnam

Cheap round-trip flights

Enter your travel dates to find the best prices.
Korean Air Logo
6:00 am - 10:40 am
ONT
-
HAN
38h 40m2 stops
Korean Air Logo
12:00 pm - 5:16 pm
HAN
-
ONT
43h 16m2 stops
$639Korean Air
Wed, Apr 8 - Mon, Apr 13
China Airlines Logo
10:50 pm - 4:50 pm
ONT
-
SGN
27h 00m1 stop
China Airlines Logo
11:00 am - 5:50 pm
SGN
-
ONT
20h 50m1 stop
$697China Airlines
Tue, Jan 20 - Mon, Mar 16
Korean Air Logo
6:00 am - 11:20 pm
ONT
-
SGN
27h 20m2 stops
Korean Air Logo
7:35 am - 10:34 pm
SGN
-
ONT
28h 59m2 stops
$698Korean Air
Fri, Mar 27 - Thu, Apr 9
Delta Logo
3:30 pm - 11:20 pm
ONT
-
SGN
40h 50m2 stops
Delta Logo
1:55 pm - 10:40 pm
SGN
-
ONT
46h 45m2 stops
$699Delta
Tue, Feb 24 - Fri, Apr 24
China Airlines Logo
12:10 am - 4:20 pm
ONT
-
SGN
26h 10m1 stop
China Airlines Logo
10:50 am - 6:00 pm
SGN
-
ONT
21h 10m1 stop
$716China Airlines
Mon, Apr 13 - Tue, Apr 21
United Airlines Logo
1:50 pm - 9:50 pm
ONT
-
SGN
41h 00m2 stops
United Airlines Logo
11:15 pm - 10:52 pm
SGN
-
ONT
37h 37m2 stops
$720United Airlines
Wed, Feb 25 - Sun, May 3
Korean Air Logo
7:00 am - 9:05 pm
ONT
-
DAD
24h 05m2 stops
Korean Air Logo
3:40 pm - 10:40 pm
DAD
-
ONT
45h 00m2 stops
$720Korean Air
Sat, Apr 18 - Tue, Apr 21
United Airlines Logo
6:00 am - 12:15 am
ONT
-
SGN
28h 15m2 stops
United Airlines Logo
11:15 pm - 10:52 pm
SGN
-
ONT
37h 37m2 stops
$723United Airlines
Sun, Apr 19 - Sun, May 10
Delta Logo
3:30 pm - 9:30 pm
ONT
-
DAD
39h 00m2 stops
Delta Logo
3:45 pm - 1:54 pm
DAD
-
ONT
37h 09m2 stops
$770Delta
Sun, Feb 15 - Sat, Feb 28
STARLUX Airlines Logo
9:45 pm - 5:15 pm
ONT
-
DAD
28h 30m1 stop
STARLUX Airlines Logo
6:25 pm - 3:50 pm
DAD
-
ONT
36h 25m1 stop
$784STARLUX Airlines
Wed, Jan 14 - Thu, Feb 5

China Airlines flights from Ontario to Vietnam

Our best China Airlines deals on Ontario to Vietnam flight tickets
China Airlines
Jan 20
ONT10:50 pmOntario
27h 00m
1 stop
SGN4:50 pmHo Chi Minh City
Mar 16
SGN11:00 amHo Chi Minh City
20h 50m
1 stop
ONT5:50 pmOntario
$697
Find similar
China Airlines
Jan 21
ONT10:50 pmOntario
27h 00m
1 stop
SGN4:50 pmHo Chi Minh City
Jan 26
SGN11:00 amHo Chi Minh City
20h 50m
1 stop
ONT4:50 pmOntario
$722
Find similar
China Airlines
Apr 26
ONT12:10 amOntario
26h 25m
1 stop
DAD4:35 pmDa Nang
May 26
DAD5:35 pmDa Nang
38h 25m
1 stop
ONT6:00 pmOntario
$723
Find similar

Delta flights from Ontario to Vietnam

Our best Delta deals on Ontario to Vietnam flight tickets
Delta
Feb 24
ONT3:30 pmOntario
40h 50m
2 stops
SGN11:20 pmHo Chi Minh City
Apr 24
SGN1:55 pmHo Chi Minh City
46h 45m
2 stops
ONT10:40 pmOntario
$699
Find similar
Delta
Feb 25
ONT7:30 amOntario
24h 50m
2 stops
SGN11:20 pmHo Chi Minh City
Mar 19
SGN8:00 amHo Chi Minh City
23h 13m
2 stops
ONT5:13 pmOntario
$733
Find similar
Delta
Mar 7
ONT3:30 pmOntario
40h 50m
2 stops
SGN11:20 pmHo Chi Minh City
Mar 27
SGN8:00 amHo Chi Minh City
28h 34m
2 stops
ONT10:34 pmOntario
$739
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Ontario to Vietnam that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated December 9, 2025.
Use the filters below to find and compare flights from Ontario to Vietnam that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

OntarioHanoi

ONT - HAN

ONTHAN

Ontario

Wed 4/8

6:00 am-10:40 am

2 stops38h 40m

Hanoi Noibai

Mon 4/13

12:00 pm-5:16 pm

2 stops43h 16m

$639

OntarioHo Chi Minh City

ONT - SGN

ONTSGN

Ontario

Tue 1/20

10:50 pm-4:50 pm

1 stop27h 00m

Ho Chi Minh City

Mon 3/16

11:00 am-5:50 pm

1 stop20h 50m

$697

OntarioHo Chi Minh City

ONT - SGN

ONTSGN

Ontario

Fri 3/27

6:00 am-11:20 pm

2 stops27h 20m

Ho Chi Minh City

Thu 4/9

7:35 am-10:34 pm

2 stops28h 59m

$698

OntarioHo Chi Minh City

ONT - SGN

ONTSGN

Ontario

Tue 2/24

3:30 pm-11:20 pm

2 stops40h 50m

Ho Chi Minh City

Fri 4/24

1:55 pm-10:40 pm

2 stops46h 45m

$699

OntarioHo Chi Minh City

ONT - SGN

ONTSGN

Ontario

Mon 4/13

12:10 am-4:20 pm

1 stop26h 10m

Ho Chi Minh City

Tue 4/21

10:50 am-6:00 pm

1 stop21h 10m

$716

OntarioHo Chi Minh City

ONT - SGN

ONTSGN

Ontario

Wed 2/25

1:50 pm-9:50 pm

2 stops41h 00m

Ho Chi Minh City

Sun 5/3

11:15 pm-10:52 pm

2 stops37h 37m

$720

OntarioDa Nang

ONT - DAD

ONTDAD

Ontario

Sat 4/18

7:00 am-9:05 pm

2 stops24h 05m

Da Nang

Tue 4/21

3:40 pm-10:40 pm

2 stops45h 00m

$720

OntarioHo Chi Minh City

ONT - SGN

ONTSGN

Ontario

Sun 4/19

6:00 am-12:15 am

2 stops28h 15m

Ho Chi Minh City

Sun 5/10

11:15 pm-10:52 pm

2 stops37h 37m

$723

OntarioDa Nang

ONT - DAD

ONTDAD

Ontario

Sun 2/15

3:30 pm-9:30 pm

2 stops39h 00m

Da Nang

Sat 2/28

3:45 pm-1:54 pm

2 stops37h 09m

$770

OntarioDa Nang

ONT - DAD

ONTDAD

Ontario

Wed 1/14

9:45 pm-5:15 pm

1 stop28h 30m

Da Nang

Thu 2/5

6:25 pm-3:50 pm

1 stop36h 25m

$784

Flights are sorted by cheapest round-trip flights first.

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See travel insights to Vietnam from

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

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 $776. If you don’t want to visit Vietnam in November, then you should wait until October to fly from Ontario, when ticket prices are also cheap, with an average price of $784.

What is the cheapest day to depart on your flight to Vietnam?

According to our data, Tuesday is the cheapest day to fly to Vietnam from Ontario. The lowest ticket price found for a Tuesday departure recently was $913. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Be sure to avoid booking your departure on a Friday as prices are generally higher than usual. According to our data, the average ticket price to Vietnam on Friday is $988.

What is the cheapest time of day to depart on your flight to Vietnam?

Flying to Vietnam from Ontario in the morning is the least expensive time of day to depart. momondo users have found prices as low as $914 when looking at flights departing in the morning. In the afternoon is when there is more demand to fly to Vietnam, so prices are often more expensive at around $1,167 per ticket.

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 $994 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 $794 on momondo.

Can stopping save me money on Ontario to Vietnam flights?

You could potentially save up to 10% 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 20m

Direct flights

None
The fastest flight from Ontario to Vietnam takes 19h 20m
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?

  • 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 AirlinesPriceFrom $640Free CancellationRating
8.2
490 reviews
Search Asiana Airlines flights
China AirlinesPriceFrom $700Free CancellationRating
8.2
788 reviews
Search China Airlines flights
Korean AirPriceFrom $710Free CancellationRating
8.4
1,183 reviews
Search Korean Air flights
STARLUX AirlinesPriceFrom $749Free CancellationRating
8.9
243 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.

An easier way to manage your Vietnam trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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