HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Ontario

$454+ Cheap flights from Vietnam to Ontario (ONT)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/12. Fares are subject to change and may not be available on all flights or dates of travel.
SGN — ONT
Oct 27 — Nov 31
Mon 10/27
Mon 11/3
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Vietnam to Ontario with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Vietnam to Ontario

Keep the following information in mind while searching for Vietnam to Ontario flight deals. Data was last updated September 27, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$733
(oojo)

One-way from

$454
(oojo)

Popular in

January

Cheapest in

June

Average price

$787
Provider with most accurate pricing for Ho Chi Minh City-Los Angeles flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ho Chi Minh City-Los Angeles flights.
Search Deals
From Vietnam to Ontario
Search Deals
One-way flight from Vietnam to Ontario
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($50 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

Find flight deals from Vietnam to Ontario

Cheapest flights from Vietnam to Ontario
Explore the most affordable flight options available from Vietnam to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 27, 2025.

This Trip.com deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/910:50 amSGN - ONT
1 stop21h 10mChina Airlines
Thu 11/610:50 pmONT - SGN
1 stop20h 10mChina Airlines
Deal found 9/26$752
This oojo deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/2511:30 amSGN - ONT
1 stop19h 35mSTARLUX Airlines
Fri 11/149:45 pmONT - SGN
1 stop28h 00mSTARLUX Airlines
Deal found 9/26$771
This oojo deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1511:30 amSGN - ONT
1 stop19h 35mSTARLUX Airlines
Fri 11/149:45 pmONT - SGN
1 stop28h 00mSTARLUX Airlines
Deal found 9/25$773
This China Airlines deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/235:50 pmSGN - ONT
1 stop38h 00mChina Airlines
Sun 2/110:50 pmONT - SGN
1 stop27h 00mChina Airlines
Deal found 9/25$792
This China Airlines deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2910:50 amSGN - ONT
1 stop21h 10mChina Airlines
Mon 9/2912:10 amONT - SGN
1 stop26h 10mChina Airlines
Deal found 9/25$794
This Trip.com deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2511:00 amSGN - ONT
1 stop20h 50mChina Airlines
Sun 1/410:50 pmONT - SGN
1 stop20h 10mChina Airlines
Deal found 9/25$804
This Trip.com deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/511:35 amHAN - ONT
1 stop20h 15mChina Airlines
Sun 11/910:50 pmONT - HAN
1 stop20h 45mChina Airlines
Deal found 9/26$805
This STARLUX Airlines deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure STARLUX Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1811:30 amSGN - ONT
1 stop19h 35mSTARLUX Airlines
Sat 12/139:45 pmONT - SGN
1 stop28h 00mSTARLUX Airlines
Deal found 9/26$811
This Ovago deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/115:55 pmSGN - ONT
1 stop37h 35mSTARLUX Airlines
Wed 11/199:45 pmONT - SGN
1 stop28h 00mSTARLUX Airlines
Deal found 9/26$812
This China Airlines deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1211:00 amSGN - ONT
1 stop20h 50mChina Airlines
Tue 11/1810:50 pmONT - SGN
1 stop20h 10mChina Airlines
Deal found 9/24$820
This Trip.com deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2111:00 amSGN - ONT
1 stop20h 50mChina Airlines
Sun 1/410:50 pmONT - SGN
1 stop20h 10mChina Airlines
Deal found 9/25$829
This Gotogate deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1410:50 amSGN - ONT
1 stop21h 10mChina Airlines
Tue 10/2112:10 amONT - SGN
1 stop19h 30mChina Airlines
Deal found 9/25$836

Cheapflights Fare Finder

 
Customize your flight search to find flights from Vietnam to Ontario 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, Cheapflights users made 2,558,603 searches. Data last updated September 27, 2025.
Use the filters below to find and compare flights from Vietnam to Ontario that are best for you.

Fly from

Vietnam

Fly to

Ontario

Route

Depart

Return

Price

Ho Chi Minh CityOntario

SGN - ONT

SGNONT

Ho Chi Minh City

Fri 3/20

5:50 pm-5:50 pm

1 stop38h 00m

Ontario

Wed 4/8

12:10 am-4:20 pm

1 stop26h 10m

$733

Ho Chi Minh CityOntario

SGN - ONT

SGNONT

Ho Chi Minh City

Tue 2/17

5:50 pm-4:50 pm

1 stop38h 00m

Ontario

Wed 4/29

12:10 am-9:40 am

1 stop19h 30m

$733

Ho Chi Minh CityOntario

SGN - ONT

SGNONT

Ho Chi Minh City

Thu 10/9

10:50 am-6:00 pm

1 stop21h 10m

Ontario

Thu 11/6

10:50 pm-10:00 am

1 stop20h 10m

$752

Ho Chi Minh CityOntario

SGN - ONT

SGNONT

Ho Chi Minh City

Tue 10/7

6:25 pm-5:05 pm

1 stop36h 40m

Ontario

Wed 1/28

9:45 pm-4:45 pm

1 stop28h 00m

$771

Ho Chi Minh CityOntario

SGN - ONT

SGNONT

Ho Chi Minh City

Wed 12/17

11:40 am-4:30 pm

1 stop19h 50m

Ontario

Sat 2/28

9:45 pm-4:45 pm

1 stop28h 00m

$771

Ho Chi Minh CityOntario

SGN - ONT

SGNONT

Ho Chi Minh City

Mon 1/12

11:00 am-4:50 pm

1 stop20h 50m

Ontario

Mon 2/2

10:50 pm-4:50 pm

1 stop27h 00m

$774

Ho Chi Minh CityOntario

SGN - ONT

SGNONT

Ho Chi Minh City

Sat 11/1

5:50 pm-5:50 pm

1 stop38h 00m

Ontario

Sat 3/28

12:10 am-9:40 am

1 stop19h 30m

$792

Ho Chi Minh CityOntario

SGN - ONT

SGNONT

Ho Chi Minh City

Sun 11/23

5:50 pm-4:50 pm

1 stop38h 00m

Ontario

Sun 2/1

10:50 pm-4:50 pm

1 stop27h 00m

$792

Ho Chi Minh CityOntario

SGN - ONT

SGNONT

Ho Chi Minh City

Thu 12/18

11:00 am-4:50 pm

1 stop20h 50m

Ontario

Mon 12/29

10:50 pm-4:50 pm

1 stop27h 00m

$794

Ho Chi Minh CityOntario

SGN - ONT

SGNONT

Ho Chi Minh City

Thu 3/19

11:00 am-5:50 pm

1 stop20h 50m

Ontario

Mon 3/23

11:50 pm-4:50 pm

1 stop27h 00m

$794

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/26

Showing 1-10 of 38 results
1
2
3
4

Best time to book a flight from Vietnam to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Vietnam with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Vietnam to Ontario

What is the cheapest month to book a flight from Vietnam to Ontario?

Currently, August is the cheapest month in which you can book a flight from Vietnam to Ontario (average of $246). Flying from Vietnam to Ontario in March is currently the most expensive (average of $328). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated September 27, 2025.
Read reviews from past customers who have flown STARLUX Airlines and China Airlines from Vietnam to Ontario. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
STARLUX Airlines
8.9
Very good
216 reviews

Crew

9.2

Overall

8.9

Comfort

8.9

Boarding

9.0

Entertainment

8.8

Food

8.7

Reviews

1 / 8
10.0
Excellent

Anonymous,Sep 2025

TPE - CRK

Superb service! My second time flying with Starlux to Clark. Will definately fly this route with them again!
STARLUX Airlines
8.9
Very good
216 reviews
STARLUX Airlines
8.9
Very good
216 reviews

Crew

9.2

Overall

8.9

Comfort

8.9

Boarding

9.0

Entertainment

8.8

Food

8.7

Reviews

1 / 8
10.0
Excellent

Anonymous,Sep 2025

TPE - CRK

Superb service! My second time flying with Starlux to Clark. Will definately fly this route with them again!
China Airlines
8.3
Very good
767 reviews
STARLUX Airlines
8.9
Very good
216 reviews

Crew

9.2

Overall

8.9

Comfort

8.9

Boarding

9.0

Entertainment

8.8

Food

8.7

Reviews

1 / 8
10.0
Excellent

Anonymous,Sep 2025

TPE - CRK

Superb service! My second time flying with Starlux to Clark. Will definately fly this route with them again!

Related info for your journey

Find useful and relevant information for your journey from Vietnam to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Ontario from Vietnam?

    Most people fly into Ontario (ONT) if they book a flight to Ontario from Vietnam. Ontario is conveniently located just 3.1 mi from Ontario’s city center.

  • How long is the flight from Vietnam to Ontario?

    A quick flight from Vietnam to Ontario can take about 36h 40m. China Airlines provides one of the quickest options available for as low as $771. Airlines will cover a distance of 8184 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • Can I find deals for flights from Vietnam to Ontario that include hotel bookings?

    Yes. In addition to deals on Vietnam to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Vietnam to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Vietnam to Ontario.

  • Can I find deals for business class flights from Vietnam to Ontario?

    Yes. Cheapflights offers flight deals from Vietnam to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Vietnam to Ontario?

    Currently, August is the cheapest month in which you can book a flight from Vietnam to Ontario (average of $246). Flying from Vietnam to Ontario in March is currently the most expensive (average of $328). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Vietnam to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
Incheon Intl to Los Angeles flights
Manila to Los Angeles flights
Taiwan Taoyuan Intl to San Francisco flights
Haneda to Los Angeles flights
Narita to Los Angeles flights
Suvarnabhumi to Los Angeles flights
Manila to San Francisco flights
Incheon Intl to San Francisco flights
Taiwan Taoyuan Intl to Los Angeles flights
Mumbai to San Francisco flights
New Delhi to San Francisco flights
Hong Kong to Los Angeles flights
New Delhi to Los Angeles flights
Hongqiao Intl to San Francisco flights
Haneda to San Francisco flights
Lahore to Los Angeles flights
Ho Chi Minh City to Los Angeles flights
Hongqiao Intl to Los Angeles flights
Narita to San Francisco flights
Pu Dong to San Francisco flights
Gimpo Intl to Los Angeles flights
Pu Dong to Los Angeles flights
Hong Kong to San Francisco flights
Bangalore to San Francisco flights
Incheon Intl to Las Vegas flights
Incheon Intl to Ontario flights
Singapore to San Francisco flights
Hyderabad to San Francisco flights
Yerevan to Los Angeles flights
Suvarnabhumi to San Francisco flights
Capital to San Francisco flights
Kansai Intl to Los Angeles flights
Taiwan Taoyuan Intl to Ontario flights
Haneda to Ontario flights
Narita to Ontario flights
Singapore to Los Angeles flights
Sung Shan to Los Angeles flights
Kuala Lumpur Intl to San Francisco flights
Soekarno-Hatta Intl to Los Angeles flights
Gimpo Intl to San Francisco flights
Ho Chi Minh City to San Francisco flights
Mumbai to San Jose flights
Narita to San Diego flights
Manila to Ontario flights
Haneda to Las Vegas flights
Don Mueang Intl to Los Angeles flights
Manila to Las Vegas flights
New Delhi to Oakland flights

Top 2 airlines flying from Vietnam to Ontario

Discover the top 2 airlines that operate flights from Vietnam to Ontario. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 27, 2025.
AirlineCheapestAverageFlexibilityOn-time
China AirlinesCheapest$754Average$860FlexibilityNo cancel feeOn-time70%
STARLUX AirlinesCheapest$774Average$780FlexibilityNo cancel feeOn-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.