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Ontario

$484+ 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 10/28. Fares are subject to change and may not be available on all flights or dates of travel.
HAN — ONT
Nov 13 — Nov 201
Thu 11/13
Thu 11/20
1 adult, Economy
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Find 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 October 14, 2025.

This flugladen.de deal was found by Cheapflights users on 10/14. 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 flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1311:35 amHAN - ONT
1 stop20h 15mChina Airlines
Fri 11/2810:50 pmONT - HAN
1 stop26h 40mChina Airlines
Deal found 10/14$788
This United Airlines deal was found by Cheapflights users on 10/13. 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.
Wed 11/2612:25 amHAN - ONT
2 stops51h 08mUnited Airlines
Thu 12/46:00 amONT - HAN
2 stops26h 05mUnited Airlines
Deal found 10/13$895
This STARLUX Airlines deal was found by Cheapflights users on 10/13. 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.
Fri 11/2811:30 amHAN - ONT
1 stop20h 00mSTARLUX Airlines
Fri 12/59:45 pmONT - HAN
1 stop21h 45mSTARLUX Airlines
Deal found 10/13$944
This United Airlines deal was found by Cheapflights users on 10/14. 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.
Thu 10/1611:35 pmHAN - ONT
2 stops34h 49mUnited Airlines
Sat 10/181:53 pmONT - HAN
2 stops42h 22mUnited Airlines
Deal found 10/14$1,024
This oojo deal was found by Cheapflights users on 10/14. 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.
Thu 10/1611:35 amHAN - ONT
1 stop20h 25mChina Airlines
Fri 10/1712:10 amONT - HAN
2 stops23h 55mChina Airlines
Deal found 10/14$1,067
This Mytrip deal was found by Cheapflights users on 10/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/166:35 amHAN - ONT
2 stops25h 25mMultiple Airlines
Fri 10/1712:10 amONT - HAN
2 stops33h 00mMultiple Airlines
Deal found 10/14$1,073
This United Airlines deal was found by Cheapflights users on 10/14. 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.
Wed 10/1511:35 pmHAN - ONT
2 stops31h 48mUnited Airlines
Fri 10/175:05 amONT - HAN
2 stops27h 10mUnited Airlines
Deal found 10/14$1,110
This oojo deal was found by Cheapflights users on 10/14. 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 10/1511:45 amHAN - ONT
2 stops44h 15mChina Airlines
Thu 10/1612:10 amONT - HAN
2 stops25h 00mChina Airlines
Deal found 10/14$1,181
This lastminute.com deal was found by Cheapflights users on 10/14. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/136:25 pmHAN - ONT
2 stops35h 52mMultiple Airlines
Fri 11/2810:50 pmONT - HAN
1 stop20h 45mMultiple Airlines
Deal found 10/14$1,472
This United Airlines deal was found by Cheapflights users on 10/13. 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.
Thu 11/2712:25 amHAN - ONT
2 stops35h 19mUnited Airlines
Fri 12/56:00 amONT - HAN
2 stops26h 05mUnited Airlines
Deal found 10/13$1,575
This China Airlines deal was found by Cheapflights users on 10/13. 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 12/811:35 amHAN - ONT
1 stop20h 15mChina Airlines
Tue 12/910:50 pmONT - HAN
1 stop26h 40mChina Airlines
Deal found 10/13$1,579
This China Airlines deal was found by Cheapflights users on 10/13. 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 12/1011:35 amHAN - ONT
1 stop20h 15mChina Airlines
Thu 12/1110:50 pmONT - HAN
1 stop26h 40mChina Airlines
Deal found 10/13$1,745

Cheap 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 October 14, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$800
(China Airlines)

One-way from

$484
(Trip.com)

Popular in

August

Cheapest in

February

Average price

$769
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 ($115 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 October 2025
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 October 14, 2025.
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

Wed 2/18

11:35 am-4:50 pm

1 stop20h 15m

Ontario

Sun 2/22

10:50 pm-10:35 am

1 stop20h 45m

$864

HanoiOntario

HAN - ONT

HANONT

Hanoi Noibai

Wed 11/26

12:25 am-12:33 pm

2 stops51h 08m

Ontario

Thu 12/4

6:00 am-11:05 pm

2 stops26h 05m

$895

HanoiOntario

HAN - ONT

HANONT

Hanoi Noibai

Tue 2/17

12:25 am-10:57 pm

2 stops37h 32m

Ontario

Sun 2/22

6:37 pm-11:05 pm

2 stops37h 28m

$914

HanoiOntario

HAN - ONT

HANONT

Hanoi Noibai

Sat 1/10

11:35 am-4:50 pm

1 stop20h 15m

Ontario

Sat 1/10

10:50 pm-10:35 am

1 stop20h 45m

$924

HanoiOntario

HAN - ONT

HANONT

Hanoi Noibai

Fri 11/28

11:30 am-4:30 pm

1 stop20h 00m

Ontario

Fri 12/5

9:45 pm-10:30 am

1 stop21h 45m

$944

HanoiOntario

HAN - ONT

HANONT

Hanoi Noibai

Wed 2/18

11:55 pm-6:17 pm

2 stops33h 22m

Ontario

Sun 2/22

6:00 am-10:30 pm

2 stops25h 30m

$1,242

HanoiOntario

HAN - ONT

HANONT

Hanoi Noibai

Thu 11/27

12:25 am-8:44 pm

2 stops35h 19m

Ontario

Fri 12/5

6:00 am-11:05 pm

2 stops26h 05m

$1,575

HanoiOntario

HAN - ONT

HANONT

Hanoi Noibai

Tue 12/9

11:35 am-4:50 pm

1 stop20h 15m

Ontario

Wed 12/10

10:50 pm-4:30 pm

1 stop26h 40m

$1,579

HanoiOntario

HAN - ONT

HANONT

Hanoi Noibai

Mon 12/8

11:35 am-4:50 pm

1 stop20h 15m

Ontario

Tue 12/9

10:50 pm-4:30 pm

1 stop26h 40m

$1,579

HanoiOntario

HAN - ONT

HANONT

Hanoi Noibai

Wed 12/10

11:35 am-4:50 pm

1 stop20h 15m

Ontario

Thu 12/11

10:50 pm-4:30 pm

1 stop26h 40m

$1,745

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/13

Showing 1-10 of 21 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 October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*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 FlightHub the most. FlightHub 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, March is the cheapest month in which you can book a flight from Hanoi to Ontario (average of $560). Flying from Hanoi to Ontario in July is currently the most expensive (average of $851). 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 20h 15m. Fly via China Airlines or United 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, March is the cheapest month in which you can book a flight from Hanoi to Ontario (average of $560). Flying from Hanoi to Ontario in July is currently the most expensive (average of $851). 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

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