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Cheap flights from Ontario to Vietnam from $340

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 3/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
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.
Delta Logo
7:30 am - 9:45 pmONT-HAN
23h 15m2 stops
Delta Logo
11:05 pm - 10:40 pmHAN-ONT
38h 35m2 stops
$650Delta
Find Deal
qua, jan 28 - qua, fev 11
Korean Air Logo
7:00 am - 9:35 pmONT-HAN
24h 35m2 stops
Korean Air Logo
11:10 pm - 10:40 pmHAN-ONT
37h 30m2 stops
$655Korean Air
Find Deal
seg, abr 13 - ter, abr 28
China Airlines Logo
10:50 pm - 10:35 amONT-HAN
20h 45m1 stop
China Airlines Logo
11:35 am - 4:50 pmHAN-ONT
20h 15m1 stop
$707China Airlines
Find Deal
dom, nov 30 - qui, dez 4
China Airlines Logo
10:50 pm - 10:35 amONT-HAN
20h 45m1 stop
China Airlines Logo
11:35 am - 4:50 pmHAN-ONT
20h 15m1 stop
$709China Airlines
Find Deal
sáb, jan 24 - sáb, jan 31
United Airlines Logo
6:00 am - 10:55 pmONT-SGN
49h 55m2 stops
United Airlines Logo
7:00 am - 11:06 pmSGN-ONT
30h 06m2 stops
$723United Airlines
Find Deal
dom, fev 1 - sex, mai 1
Multiple Airlines Logo
7:30 am - 11:20 pmONT-SGN
24h 50m2 stops
Multiple Airlines Logo
8:00 am - 1:56 pmSGN-ONT
20h 56m2 stops
$724Multiple Airlines
Find Deal
dom, jan 11 - dom, jan 25
Multiple Airlines Logo
7:30 am - 11:20 pmONT-SGN
24h 50m2 stops
Multiple Airlines Logo
2:05 pm - 5:15 pmSGN-ONT
41h 10m2 stops
$725Multiple Airlines
Find Deal
sex, fev 27 - qui, mar 26
United Airlines Logo
5:10 am - 10:15 pmONT-HAN
27h 05m2 stops
United Airlines Logo
11:35 pm - 11:06 pmHAN-ONT
37h 31m2 stops
$731United Airlines
Find Deal
dom, abr 19 - qua, abr 29
STARLUX Airlines Logo
9:45 pm - 5:15 pmONT-DAD
28h 30m1 stop
STARLUX Airlines Logo
6:25 pm - 3:50 pmDAD-ONT
36h 25m1 stop
$778STARLUX Airlines
Find Deal
sex, jan 9 - qui, jan 29
STARLUX Airlines Logo
9:45 pm - 5:15 pmONT-DAD
28h 30m1 stop
STARLUX Airlines Logo
6:25 pm - 3:50 pmDAD-ONT
36h 25m1 stop
$785STARLUX Airlines
Find Deal
qua, jan 14 - qui, fev 26

United Airlines flights from Ontario to Vietnam

Our best United Airlines deals on Ontario to Vietnam flight tickets
United Airlines
Feb 1
ONT6:00 amOntario
49h 55m
2 stops
SGN10:55 pmHo Chi Minh City
May 1
SGN7:00 amHo Chi Minh City
30h 06m
2 stops
ONT11:06 pmOntario
$723
Find similar
United Airlines
Apr 19
ONT5:10 amOntario
27h 05m
2 stops
HAN10:15 pmHanoi Noibai
Apr 29
HAN11:35 pmHanoi Noibai
37h 31m
2 stops
ONT11:06 pmOntario
$731
Find similar
United Airlines
Apr 5
ONT6:53 pmOntario
36h 57m
2 stops
SGN9:50 pmHo Chi Minh City
Apr 30
SGN11:15 pmHo Chi Minh City
37h 51m
2 stops
ONT11:06 pmOntario
$739
Find similar

STARLUX Airlines flights from Ontario to Vietnam

Our best STARLUX Airlines deals on Ontario to Vietnam flight tickets
STARLUX Airlines
Apr 22
ONT11:10 pmOntario
27h 45m
1 stop
SGN4:55 pmHo Chi Minh City
May 13
SGN11:30 amHo Chi Minh City
19h 35m
1 stop
ONT5:05 pmOntario
$769
Find similar
STARLUX Airlines
Nov 28
ONT9:45 pmOntario
21h 45m
1 stop
HAN10:30 amHanoi Noibai
Dec 5
HAN11:30 amHanoi Noibai
19h 20m
1 stop
ONT3:50 pmOntario
$783
Find similar
STARLUX Airlines
Jan 14
ONT9:45 pmOntario
28h 30m
1 stop
DAD5:15 pmDa Nang
Feb 26
DAD6:25 pmDa Nang
36h 25m
1 stop
ONT3:50 pmOntario
$785
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 novembro 17, 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

qua 1/28

7:30 am-9:45 pm

2 stops23h 15m

Hanoi Noibai

qua 2/11

11:05 pm-10:40 pm

2 stops38h 35m

$650

OntarioHanoi

ONT - HAN

ONTHAN

Ontario

seg 4/13

7:00 am-9:35 pm

2 stops24h 35m

Hanoi Noibai

ter 4/28

11:10 pm-10:40 pm

2 stops37h 30m

$655

OntarioHanoi

ONT - HAN

ONTHAN

Ontario

dom 11/30

10:50 pm-10:35 am

1 stop20h 45m

Hanoi Noibai

qui 12/4

11:35 am-4:50 pm

1 stop20h 15m

$707

OntarioHanoi

ONT - HAN

ONTHAN

Ontario

sáb 1/24

10:50 pm-10:35 am

1 stop20h 45m

Hanoi Noibai

sáb 1/31

11:35 am-4:50 pm

1 stop20h 15m

$709

OntarioHo Chi Minh City

ONT - SGN

ONTSGN

Ontario

dom 2/1

6:00 am-10:55 pm

2 stops49h 55m

Ho Chi Minh City

sex 5/1

7:00 am-11:06 pm

2 stops30h 06m

$723

OntarioHo Chi Minh City

ONT - SGN

ONTSGN

Ontario

dom 1/11

7:30 am-11:20 pm

2 stops24h 50m

Ho Chi Minh City

dom 1/25

8:00 am-1:56 pm

2 stops20h 56m

$724

OntarioHo Chi Minh City

ONT - SGN

ONTSGN

Ontario

sex 2/27

7:30 am-11:20 pm

2 stops24h 50m

Ho Chi Minh City

qui 3/26

2:05 pm-5:15 pm

2 stops41h 10m

$725

OntarioHanoi

ONT - HAN

ONTHAN

Ontario

dom 4/19

5:10 am-10:15 pm

2 stops27h 05m

Hanoi Noibai

qua 4/29

11:35 pm-11:06 pm

2 stops37h 31m

$731

OntarioDa Nang

ONT - DAD

ONTDAD

Ontario

sex 1/9

9:45 pm-5:15 pm

1 stop28h 30m

Da Nang

qui 1/29

6:25 pm-3:50 pm

1 stop36h 25m

$778

OntarioDa Nang

ONT - DAD

ONTDAD

Ontario

qua 1/14

9:45 pm-5:15 pm

1 stop28h 30m

Da Nang

qui 2/26

6:25 pm-3:50 pm

1 stop36h 25m

$785

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest 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 $780. 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 $1,009 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 $827 on momondo.

Can stopping save me money on Ontario to Vietnam flights?

You could potentially save up to 7% 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

Direct flights

None
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
487 reviews
Search Asiana Airlines flights
Korean AirPriceFrom $714Free CancellationRating
8.4
1,166 reviews
Search Korean Air flights
China AirlinesPriceFrom $727Free CancellationRating
8.3
780 reviews
Search China Airlines flights
STARLUX AirlinesPriceFrom $757Free CancellationRating
8.9
230 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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1 adult
qua 12/17
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