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Find cheap flights from Ontario to Vietnam from $512

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 8/13. 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
Do 5/23
Do 5/30

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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$863
Da Nang
Da Nang1 stop$858

Good to know

Low season

April

High season

January

Cheapest flight

$512
Best time to beat the crowds with an average 24% drop in price.
Most popular time to fly and prices are also 19% lower on average.
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 20% cheaper 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 1560 reviews
7.9food
8.2comfort
8.0entertainment
8.4boarding
8.6crew
Airline reviews

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.

10.0 ExcellentDamian, Mar 2024LAX - TPE
Read more about EVA Air reviews

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.

Poor services. Not meet 5-star airline standard. Disappointed with the poor food and drink selections. Cabin crew is not attentive at all. They even skipped me during meal service (not sure if it is intentionally).

EVA would not help with ticket issue since they were purchased through a travel agency. Even though it was EVA ticket stock. Travel agency Budget Air didn't reissue ticket after airline change which I didn’t learn until trying to checkin on Christmas Day and there was no contact number for the agency to help. I will never use Budget Air to purchase flight again and disappointed in EVA’s refusal to help. Thankfully just under 12 hrs before departure someone from the agency was available to reissue tickets. I was starting to think we would not be flying and the stress trying to resolve was completely unacceptable.

seamless check in/ friendly staff, food is good, always love flying Eva Air

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

Airfare was ok . Food not good , seat ok but not comfortable. Lay over too long , crew was ok Overall just ok

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.

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.

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

The singapore airline now compared before covid, I like the service before covid. SQ was the best of all airlines but now I am going to look for different airline if I am travelling in asia.

Flying with Singapore airlines is always excelllent - the crew are lovely and the food too is great. It’s my number 1 airline

The seat comfort, the food and of course the crew, they made you feel welcome and relaxed 😊

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.

Like most domestic flights in the US, you are basically on your own with this airline when it comes to food, so be sure to purchase meals and drinks ahead of time or expect to arrive starving and dehydrated (like I was).

You need to be a hacker to get the (Free) WiFi

Book cheap flights from Ontario to Vietnam

Recent round-trip flight deals

8/11So
1 stopChina Airlines
25h 35mONT-SGN
10/28Mo
1 stopChina Airlines
37h 45mSGN-ONT
$840
9/30Mo
1 stopChina Airlines
19h 40mONT-SGN
10/31Do
1 stopChina Airlines
20h 35mSGN-ONT
$845
9/9Mo
2 stopsDelta
39h 35mONT-SGN
9/23Mo
2 stopsDelta
24h 13mSGN-ONT
$884
9/30Mo
2 stops
26h 05mONT-SGN
11/4Mo
2 stops
24h 48mSGN-ONT
$888
9/3Di
2 stopsKorean Air
25h 05mONT-SGN
9/30Mo
2 stopsKorean Air
24h 13mSGN-ONT
$889
10/8Di
2 stopsJapan Airlines
26h 00mONT-SGN
11/3So
2 stopsJapan Airlines
29h 52mSGN-ONT
$904
9/13Fr
2 stopsDelta
25h 05mONT-SGN
9/16Mo
2 stopsDelta
42h 08mSGN-ONT
$934
9/7Sa
2 stops
26h 05mONT-SGN
10/1Di
2 stops
24h 13mSGN-ONT
$938
8/23Fr
2 stopsKorean Air
26h 05mONT-SGN
9/22So
2 stopsKorean Air
32h 18mSGN-ONT
$939
10/7Mo
2 stopsJapan Airlines
26h 00mONT-SGN
11/2Sa
2 stopsJapan Airlines
26h 02mSGN-ONT
$946

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Recent one-way flight deals

8/13Di
1 stopChina Airlines
25h 35mONT-SGN
$512
9/4Mi
1 stopChina Airlines
19h 50mONT-HAN
$524
5/3Fr
2 stopsKorean Air
37h 55mONT-HAN
$531
8/6Di
2 stopsKorean Air
40h 35mONT-SGN
$535
5/1Mi
2 stops
39h 35mONT-SGN
$550
4/29Mo
2 stopsUnited Airlines
25h 25mONT-SGN
$581
5/7Di
2 stopsUnited Airlines
27h 45mONT-SGN
$583
4/29Mo
2 stopsDelta
24h 35mONT-HAN
$625
5/7Di
2 stopsDelta
25h 15mONT-SGN
$639
8/13Di
2 stops
33h 40mONT-SGN
$646

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Last minute flights from Ontario to Vietnam

Last minute flight, train and bus deals

4/24Mi
multi-stopDelta
37h 55mONT-HAN
5/13Mo
multi-stopDelta
37h 28mHAN-ONT
$879
4/25Do
multi-stopDelta
26h 05mONT-SGN
6/10Mo
multi-stopDelta
28h 48mSGN-ONT
$902
4/24Mi
multi-stopKorean Air
26h 05mONT-SGN
5/23Do
multi-stopKorean Air
24h 12mSGN-ONT
$907
4/24Mi
multi-stopChina Airlines
26h 35mONT-SGN
6/10Mo
multi-stopChina Airlines
21h 15mSGN-ONT
$918
4/24Mi
multi-stopKorean Air
26h 05mONT-SGN
5/24Fr
multi-stopKorean Air
24h 12mSGN-ONT
$947
4/25Do
multi-stopKorean Air
26h 05mONT-SGN
10/2Mi
multi-stopKorean Air
24h 13mSGN-ONT
$972
4/25Do
multi-stopChina Airlines
20h 25mONT-HAN
5/3Fr
multi-stopChina Airlines
20h 30mHAN-ONT
$994
4/28So
multi-stop
44h 40mONT-SGN
5/5So
multi-stop
35h 11mSGN-ONT
$1,082
4/28So
multi-stop
44h 40mONT-SGN
5/4Sa
multi-stop
22h 11mSGN-ONT
$1,122
4/24Mi
multi-stopUnited Airlines
27h 45mONT-SGN
5/22Mi
multi-stopUnited Airlines
37h 42mSGN-ONT
$1,271

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Ontario - Vietnam Flights

Departure:

Ontario (ONT)United States

Return flight deals:

Vietnam - Ontario

Cabin classes: