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Ontario

$472+ Cheap flights from Hanoi (HAN) 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 5/27. Fares are subject to change and may not be available on all flights or dates of travel.
HAN — ONT
Feb 19 — Feb 261
Thu 2/19
Thu 2/26
1 adult, Economy
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Cheap flight deals from Hanoi to Ontario

Cheapest flights from Hanoi to Ontario
Explore the most affordable flight options available from Hanoi to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 20, 2026.

This FlightHub deal was found by Cheapflights users on 1/20. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/211:30 am
HAN
-
ONT
1 stop19h 20m
STARLUX Airlines
Mon 3/910:45 pm
ONT
-
HAN
1 stop28h 40m
STARLUX Airlines
Deal found 1/20$837
This China Airlines deal was found by Cheapflights users on 1/19. 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.
Tue 10/2711:35 am
HAN
-
ONT
1 stop20h 15m
China Airlines
Sat 10/3111:50 pm
ONT
-
HAN
1 stop26h 40m
China Airlines
Deal found 1/19$839
This oojo deal was found by Cheapflights users on 1/20. 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.
Tue 2/311:35 am
HAN
-
ONT
1 stop20h 15m
China Airlines
Fri 11/610:50 pm
ONT
-
HAN
1 stop20h 45m
China Airlines
Deal found 1/20$896
This United Airlines deal was found by Cheapflights users on 1/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/112:25 am
HAN
-
ONT
2 stops35h 33m
United Airlines
Mon 3/96:15 am
ONT
-
HAN
2 stops26h 50m
United Airlines
Deal found 1/20$898
This oojo deal was found by Cheapflights users on 1/20. 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.
Tue 2/311:35 am
HAN
-
ONT
1 stop20h 15m
China Airlines
Fri 11/2010:50 pm
ONT
-
HAN
1 stop20h 45m
China Airlines
Deal found 1/20$905
This China Airlines deal was found by Cheapflights users on 1/20. 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.
Thu 3/2611:20 am
HAN
-
ONT
1 stop20h 30m
China Airlines
Mon 6/112:10 am
ONT
-
HAN
1 stop26h 40m
China Airlines
Deal found 1/20$931
This oojo deal was found by Cheapflights users on 1/20. 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.
Mon 2/26:00 am
HAN
-
ONT
2 stops25h 50m
China Airlines
Mon 3/911:50 pm
ONT
-
HAN
1 stop20h 30m
China Airlines
Deal found 1/20$1,000
This United Airlines deal was found by Cheapflights users on 1/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2612:25 am
HAN
-
ONT
2 stops36h 41m
United Airlines
Sat 10/316:00 am
ONT
-
HAN
2 stops27h 05m
United Airlines
Deal found 1/19$1,042

Find flight deals from Hanoi to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Hanoi (HAN) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 20, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$837
(FlightHub)

One-way from

$472
(China Airlines)

Popular in

August

Cheapest in

February

Average price

$984
Provider with most accurate pricing for Hanoi Noibai-Ontario flight deals.
Search Deals
Provider most trusted by Cheapflights users for Hanoi Noibai-Ontario flights.
Search Deals
From Hanoi Noibai to Ontario
Search Deals
One-way flight from Hanoi Noibai to Ontario
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($107 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($23 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Hanoi 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 January 20, 2026.
Use the filters below to find and compare flights from Hanoi to Ontario that are best for you.

Fly from

Hanoi

Fly to

Ontario

Route

Depart

Return

Price

HanoiOntario

HAN - ONT

HANONT

Hanoi Noibai

Mon 2/2

11:30 am-3:50 pm

1 stop19h 20m

Ontario

Mon 3/9

10:45 pm-5:25 pm

1 stop28h 40m

$837

HanoiOntario

HAN - ONT

HANONT

Hanoi Noibai

Tue 2/3

11:35 am-4:50 pm

1 stop20h 15m

Ontario

Fri 11/6

10:50 pm-10:35 am

1 stop20h 45m

$896

HanoiOntario

HAN - ONT

HANONT

Hanoi Noibai

Tue 2/3

11:35 am-4:50 pm

1 stop20h 15m

Ontario

Fri 11/20

10:50 pm-10:35 am

1 stop20h 45m

$905

HanoiOntario

HAN - ONT

HANONT

Hanoi Noibai

Thu 3/26

11:20 am-5:50 pm

1 stop20h 30m

Ontario

Mon 6/1

12:10 am-4:50 pm

1 stop26h 40m

$931

HanoiOntario

HAN - ONT

HANONT

Hanoi Noibai

Tue 2/3

6:00 am-4:50 pm

2 stops25h 50m

Ontario

Thu 10/15

12:10 am-4:50 pm

1 stop26h 40m

$994

HanoiOntario

HAN - ONT

HANONT

Hanoi Noibai

Fri 3/6

11:30 am-3:50 pm

1 stop19h 20m

Ontario

Fri 3/13

10:45 pm-10:30 am

1 stop21h 45m

$1,142

HanoiOntario

HAN - ONT

HANONT

Hanoi Noibai

Mon 2/2

12:25 am-5:55 pm

2 stops32h 30m

Ontario

Fri 11/20

6:00 am-11:05 pm

2 stops26h 05m

$1,708

HanoiOntario

HAN - ONT

HANONT

Hanoi Noibai

Tue 2/3

7:10 pm-8:36 pm

2 stops40h 26m

Ontario

Fri 11/6

6:00 am-6:55 am

2 stops33h 55m

$1,868

HanoiOntario

HAN - ONT

HANONT

Hanoi Noibai

Thu 3/5

12:25 am-12:18 pm

2 stops26h 53m

Ontario

Fri 3/13

6:15 am-11:05 pm

2 stops26h 50m

$1,959

HanoiOntario

HAN - ONT

HANONT

Hanoi Noibai

Wed 5/27

11:30 am-6:00 pm

1 stop20h 30m

$472

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/18

Showing 1-10 of 19 results
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Compare providers for flights from Hanoi to Ontario

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Hanoi to Ontario in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Hanoi-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Hanoi-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Hanoi-Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Hanoi-Ontario flights, Cheapflights users trust Expedia the most. Expedia has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Hanoi-Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Hanoi to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Hanoi 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 Hanoi to Ontario

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

Currently, November is the cheapest month in which you can book a flight from Hanoi to Ontario (average of $380). Flying from Hanoi to Ontario in July is currently the most expensive (average of $843). 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.

Related info for your journey

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

  • How long is the flight from Hanoi to Ontario?

    There are many flights that can get you from Hanoi to Ontario in 19h 20m. Fly via STARLUX Airlines or China Airlines to get the fastest option. Airlines will cover a distance of 7664 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Hanoi 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 Hanoi to Ontario?

    Currently, November is the cheapest month in which you can book a flight from Hanoi to Ontario (average of $380). Flying from Hanoi to Ontario in July is currently the most expensive (average of $843). 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

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