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Find cheap flights from Ontario to Vietnam from $449

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to Vietnam departing on 8/20. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Fri 7/5
Fri 7/12

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Best Vietnam Flight Deals

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Hanoi
Hanoi1 stop$856
Da Nang
Da Nang1 stop$815

Good to know

Low season

April

High season

May

Cheapest flight

$449
Best time to beat the crowds with an average 11% drop in price.
Most popular time to fly with an average 2% increase in price.
Flight from Ontario to Ho Chi Minh City

FAQs - booking Vietnam flights

  • How does KAYAK find such low prices on flights from Ontario to Vietnam?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ontario to Vietnam.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to Vietnam?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Vietnam from Ontario is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Ontario to Vietnam?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Vietnam with an airline and back to Ontario with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario to Vietnam?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Vietnam from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding cheap flights to Vietnam

  • Morning departure is around 12% more expensive than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

Top 5 airlines serving from Ontario to Vietnam

Need help choosing which airline to fly with from Ontario to Vietnam? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.3
EVA AirOverall score based on 1491 reviews
8.6Crew
7.9Food
8.2Comfort
8.4Boarding
8.0Entertainment
Airline reviews

The crew was very helpful. Food was prepared with great care and tasted wonderful. Movie selection was a bit limited. The bedding on the seat is a little too thin for sleeping.

10.0 ExcellentBinhui, Jun 2024IAH - TPE
Read more about EVA Air reviews

The crew was very helpful. Food was prepared with great care and tasted wonderful. Movie selection was a bit limited. The bedding on the seat is a little too thin for sleeping.

Their announcement was not quite clear in Chinese. The rest is pretty good.

The hygiene of the bathrooms were terrible. Urine smells leaked out into the cabin and the seats were really tight, even for a petite woman like myself. Flight attendants did not go through the cabin enough to offer refreshments.

Fast and efficient boarding. Flight was on time. Service was very good for our long flight. First time flying with this airline and I would highly recommend.

Eva Air's Business Class is pretty decent. With the given price, I think that the food can be better.

Pleasant, comfortable, and entertaining. All told, ZERO issues with it. And sadly, so far the flight was WAY more comfortable than the hellhole that is "Lambug Beach Resort" at Badian Beach!

It was a pleasant fly with Eva Air from NYC to Taipei. The crew were friendly and the food was exceeded my expectation.

Seats could have been more comfortable, but it was a pretty good experience all things considered

Eva air is a good airline. The seats on the way to Taipei could have certainly been more comfortable, but all in all it was a pretty good experience.

Overall the flight was what might be expected for a long haul flight to Asia in economy class. The cabin crew was attentive and the food was good. Boarding was fairly fast and easy. The one thing I found frustrating was the EVA app. It is terrible. Trying to do anything on it was almost impossible.

One of the flight was delayed. The flight attendant of returning flight to LA was mean.

Asian Vegitarian food was test less No Salt or pepper served Need to improve with Chef who can caters for Peaple from India I am sure Chef knows different varieties of food Indian People like

Flight attendants rude, they disappear for almost 3 hours not doing rounds to see what people needed. The laboratories were full of empty water cups, because they never come back to collect them.

The flight attendant, where kind of rude, there where hiding for almost 3 hours, without doing rounds to see if people needed water or pickup the water cups, the toilets were full of water cups, because they never come back to pick them up.

Flew on an Airbus 350-900. Excellent aircraft properly cleaned and serviced. Flight crew was excellent plane departed and arrived on time. The A350 has excellent air circulation far better than the 777. I would recommend Asiana to anyone looking to fly in a clean comfortable environment. This is my second round trip flight from New York to Bangkok via Asiana and I will book Asiana again!

Amazing service and fabulous syaff. Loved the jumbo jet too, comfortable.

I could not choose my seat prior to check in

I had the most wonderful experience from CEB bag drop through deplaning. The staff, the aircraft, food, and cabin crew were all amazing. I want to give a kudos to Marky from Mactan Cebu's Asiana airport staff for his exceptional customer service and assistance.

JetBlue's check-in was great, but there was an in-flight attendant who was very rude and unkind. I didn't realize that the bathrooms were already locked 30 mins prior to landing and needed to use the restroom. Instead of politely asking me to return, she rudely told me, 'NO, bathrooms are locked! Go back to your seat!' The JetBlue flight was more than an hour delay, which made me almost miss my connecting flight with Asiana. I understand the reasoning, but the action they took to get a hold of maintenance was time consuming. It took them more than 30 mins to get a hold of maintenance and for maintenance to get started. The Asiana flight and crew were wonderful, in general. They waited for us who were delayed from the previous flight before they took off and were very kind to take my checked baggage's info. Seats were a little uncomfortable for such long flight, but service and flight attendants were great! However, my 3 checked baggages are missing! They're lost somewhere in the transition. I'm writing this review 3 days after my arrival to the Philippines, and my 3 checked baggages, where my wedding dress is, are all still missing! I and the CEB airport crew have sent multiple emails to both JetBlue and Asiana, and neither has responded to any of our emails. Although, I was able to get in contact with JetBlue's Interline Department who confirmed that the bags were turned over to Asiana without confirmation details.

The full flat bed was not that comfortable, hard and lumpy., too much space wasted with those bulky walls and divisions instead of making the bed 3-4 inches wider. The compartment where you put your feet is like a shoebox, poor design. Toilets of A350 are just too small, sink is too small

Comfort was left wanting due to such a long flight, made the wife and I wish we could upgrade the seats to Business class or First Class, but did not have that option. Food was good but had very limited options and I have a dietary restriction which was difficult for the staff to accommodate since everything provided came with cheese on it. (Cheese could potentially kill me) Did not have an option to inform the staff until we were already in the air about the restriction and was not provided another option before flight departed.

The plane was uncomfortable. I paid extra for more legroom but the seat was still uncomfortable. Other seats on the same exact row didn’t have to pay extra but still have extra legroom. I didn’t understand why I needed to pay $170 for. It was Iike China airline just wants to make money off their passengers. It was unfair.

They were helpful, considerate with asking us for standby preboarding with our infant, gave us toys and excellent service onboard. They were always on time, even early boarding once! All our luggage arrived intact, and they even brought our baby car seat to oversized for us. We love China Airlines!

Great flight, although I flew out of ONT and that is where my car is, lol

Staff is friendly, great variety of entertainment, check in a little messy but due to people not listening. Overall a pleasant experience. Would use again in the future.

It felt like a new plane. Decent leg room in economy, food was fine, and the plane didn’t feel super dry and uncomfortable.

Better training to have qualified crews and services. My flight was from around 12 midnight Friday Taipei to Vancouver. After two hours first meal (2:00 Am -8:00 ) no crew available for even asking for some water. I was even willing to pay for water. For breakfast after 8 hours the only drink was tea and coffee no water or juice.

Free Wi-Fi could have been better in the Airport.

Ask flight attendant for water during flight and she was a little rude get the water.

Staff were good and nice. There should me 3 meals instead of only 2 and snacks.

I had a great experience with Singapore airlines as always. The partner airline, Scoot was fine except my bag was misplaced during the shuffle. Ultimately, my baggage arrived intact. Attempting to inquire about my baggage was impossible.

The Premium economy class is not the same as some other airlines because there are no economy seats on these planes. Basically you’re getting an economy seat that’s a little wider. The seats are not that much more comfortable. The service and food experience is similar to economy class on other Asian airlines. There aren’t enough toilets for the entire plane therefore we are forced to share the business class toilets that are closed off with curtains.

Good flight. Fiod was ready a bit late hence a hurry to finish before landing. Excellent crew and service

All in all the flight was good. Love the fact that for airline food it was piping hot

I commend the flight attendants on our SFO-SIN flight who went above and beyond to provide us with extra snacks and food. This type of service makes the flight experience personal and awesome.

I requested an aisle seat and got a middle seat The flight gate was changed and the flight was delayed

It was a great flight Food was great Crew was spectacular

In general good, but the machine seems to be long in operation and some functions were restricted as e. g. Adjusting of seats.

It seems paying premium economy does not make difference with economy. No priority boarding, not worthy paying extra$$$ for premium economy.

People were so nice! Economy seats were small and cramped feeling for me. I’m slender and 6 feet tall

There was plenty of overhead room but half of the passengers were told they had to check their carryon bags. My partner and I checked in as early as possible and our seats were split across the aisle.

Flew first class so everything was great. But maybe because the flights were red eye, no meals were served, just chips. I flew Alaska Air 1st class at 9PM (2 hour flight) and they served beef short rib sliders!

There was a loud squeaky sound the whole time we were flying.

I didn’t not like that I could not select my seat and ended up with the worse seat.

The landing was bad and the hostess came two times and i was sleeping but when she served the person that nexts to me I woke up and she didn’t even asked me if I need any drink or snacks two times!!!!

Plane was late because of a mechanical malfunction and the food listed as available was not. Flight attendants seem over worked and under paid. They just done seem happy. And that can be seen in their faces.

Waited 3 hours on a plane to de-ice due to manpower issues. Waited another hour and a half once we landed because of a gate issue. Missed my connections. Created. A total of 13 hours of delay.

Great, on time departure, friendly and accommodating crew, great leg room, Smith flight

Plane was turned around due to fog half way into the flight, Delta did not properly direct passengers to stay on same flight and instead failed to properly rebook on Alaska

Honestly, I didn’t expect that I will experience this long time wait during the check in. There was only one person who was taking care of the passengers for the economy class and it took us to wait about one hour to do our check i. As a result we barely get to the airplane as the gate was at the end of the airport. That is totally not professional where one crue is working at the registration desk with economy and 3-4 crues are helping for the business class.

Book cheap flights from Ontario to Vietnam

Recent round-trip flight deals

11/6Wed
1 stopChina Airlines
26h 40mONT-DAD
11/20Wed
1 stopChina Airlines
21h 15mDAD-ONT
$815
11/4Mon
1 stopChina Airlines
19h 25mONT-DAD
11/19Tue
1 stopChina Airlines
38h 00mDAD-ONT
$824
8/20Tue
2 stops
39h 16mONT-SGN
9/10Tue
2 stops
21h 33mSGN-ONT
$926
9/27Fri
2 stopsKorean Air
23h 50mONT-HAN
10/6Sun
2 stopsKorean Air
31h 58mHAN-ONT
$934
8/20Tue
2 stopsKorean Air
24h 12mONT-DAD
11/19Tue
2 stopsKorean Air
38h 14mDAD-ONT
$937
8/15Thu
2 stopsUnited Airlines
27h 25mONT-SGN
9/5Thu
2 stopsUnited Airlines
28h 02mSGN-ONT
$1,008
8/18Sun
2 stopsUnited Airlines
49h 05mONT-SGN
9/8Sun
2 stopsUnited Airlines
40h 00mSGN-ONT
$1,010
10/10Thu
2 stops
23h 50mONT-HAN
10/18Fri
2 stops
31h 58mHAN-ONT
$1,013
8/17Sat
2 stopsDelta
43h 16mONT-DAD
8/31Sat
2 stopsDelta
45h 02mDAD-ONT
$1,417
7/17Wed
2 stopsDelta
43h 46mONT-HAN
7/25Thu
2 stopsDelta
44h 04mHAN-ONT
$1,715

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Recent one-way flight deals

8/20Tue
2 stopsDelta
25h 12mONT-SGN
$449
7/23Tue
2 stopsKorean Air
26h 05mONT-SGN
$455
7/10Wed
2 stopsJapan Airlines
25h 45mONT-SGN
$471
7/10Wed
2 stopsJapan Airlines
25h 45mONT-SGN
$477
8/5Mon
1 stopChina Airlines
19h 05mONT-SGN
$480
8/13Tue
1 stopChina Airlines
18h 05mONT-DAD
$492
7/21Sun
2 stops
34h 36mONT-SGN
$502
7/21Sun
3 stops
54h 18mONT-SGN
$561
11/27Wed
2 stopsUnited Airlines
26h 50mONT-HAN
$564
8/24Sat
2 stopsUnited Airlines
23h 45mONT-SGN
$598

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Last minute flights from Ontario to Vietnam

Last minute flight, train and bus deals

6/6Thu
multi-stopChina Airlines
19h 40mONT-SGN
6/9Sun
multi-stopChina Airlines
38h 20mSGN-ONT
$1,854
6/8Sat
multi-stopChina Airlines
19h 40mONT-SGN
6/11Tue
multi-stopChina Airlines
38h 20mSGN-ONT
$2,000
6/6Thu
multi-stopChina Airlines
19h 40mONT-SGN
7/8Mon
multi-stopChina Airlines
38h 55mSGN-ONT
$2,017
6/7Fri
multi-stop
28h 55mONT-SGN
6/17Mon
multi-stop
35h 55mSGN-ONT
$2,362
6/6Thu
multi-stopQatar Airways
35h 55mONT-SGN
6/21Fri
multi-stopQatar Airways
52h 24mSGN-ONT
$2,403
6/7Fri
multi-stopQatar Airways
45h 46mONT-SGN
7/19Fri
multi-stopQatar Airways
47h 50mSGN-ONT
$2,517
6/6Thu
multi-stop
35h 25mONT-SGN
6/20Thu
multi-stop
29h 30mSGN-ONT
$2,587
6/10Mon
multi-stopKorean Air
26h 05mONT-SGN
9/4Wed
multi-stopKorean Air
24h 22mSGN-ONT
$2,637
6/6Thu
multi-stopJapan Airlines
25h 50mONT-HAN
6/13Thu
multi-stopJapan Airlines
30h 09mHAN-ONT
$2,772
6/8Sat
multi-stopKorean Air
26h 05mONT-SGN
6/17Mon
multi-stopKorean Air
22h 20mSGN-ONT
$2,975

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Ontario - Vietnam Flights

Departure:

Ontario (ONT)United States

Return flight deals:

Vietnam - Ontario

Cabin classes: