HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Ontario

$497+ 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 12/4. Fares are subject to change and may not be available on all flights or dates of travel.
HAN — ONT
Dec 13 — Dec 201
Sat 12/13
Sat 12/20
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Hanoi 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.

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 November 13, 2025.

This Trip.com deal was found by Cheapflights users on 11/11. 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 11/1311:35 amHAN - ONT
1 stop20h 15mChina Airlines
Thu 11/2710:50 pmONT - HAN
1 stop20h 45mChina Airlines
Deal found 11/11$806
This Trip.com deal was found by Cheapflights users on 11/11. 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 12/1111:35 amHAN - ONT
1 stop20h 15mChina Airlines
Wed 12/2410:50 pmONT - HAN
1 stop20h 45mChina Airlines
Deal found 11/11$820
This China Airlines deal was found by Cheapflights users on 11/11. 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 12/1411:35 amHAN - ONT
1 stop20h 15mChina Airlines
Wed 12/2410:50 pmONT - HAN
1 stop20h 45mChina Airlines
Deal found 11/11$894
This Trip.com deal was found by Cheapflights users on 11/11. 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 12/1111:35 amHAN - ONT
1 stop20h 15mChina Airlines
Thu 12/2510:50 pmONT - HAN
1 stop20h 45mChina Airlines
Deal found 11/11$900
This STARLUX Airlines deal was found by Cheapflights users on 11/10. 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 12/2611:30 amHAN - ONT
1 stop19h 20mSTARLUX Airlines
Fri 1/29:45 pmONT - HAN
1 stop21h 45mSTARLUX Airlines
Deal found 11/10$1,128
This oojo deal was found by Cheapflights users on 11/11. 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.
Sun 12/71:00 pmHAN - ONT
2 stops42h 50mChina Airlines
Fri 12/1210:50 pmONT - HAN
1 stop26h 40mChina Airlines
Deal found 11/11$1,166
This United Airlines deal was found by Cheapflights users on 11/10. 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 12/2512:25 amHAN - ONT
2 stops35h 42mUnited Airlines
Fri 1/26:39 pmONT - HAN
2 stops37h 26mUnited Airlines
Deal found 11/10$1,436

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 November 13, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$820
(Trip.com)

One-way from

$497
(China Airlines)

Popular in

August

Cheapest in

February

Average price

$833
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. 13% potential increase in price ($128 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($24 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 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 November 13, 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-10:20 am

1 stop20h 30m

$864

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

Fri 12/26

11:30 am-3:50 pm

1 stop19h 20m

Ontario

Fri 1/2

9:45 pm-10:30 am

1 stop21h 45m

$1,128

HanoiOntario

HAN - ONT

HANONT

Hanoi Noibai

Wed 2/18

11:55 pm-3:08 pm

2 stops30h 13m

Ontario

Sun 2/22

6:14 am-10:30 pm

2 stops25h 16m

$1,181

HanoiOntario

HAN - ONT

HANONT

Hanoi Noibai

Fri 1/23

11:35 am-4:50 pm

1 stop20h 15m

$497

HanoiOntario

HAN - ONT

HANONT

Hanoi Noibai

Thu 12/11

11:35 am-4:50 pm

1 stop20h 15m

$513

HanoiOntario

HAN - ONT

HANONT

Hanoi Noibai

Sat 12/13

11:35 am-4:50 pm

1 stop20h 15m

$513

HanoiOntario

HAN - ONT

HANONT

Hanoi Noibai

Tue 12/9

11:35 am-4:50 pm

1 stop20h 15m

$513

HanoiOntario

HAN - ONT

HANONT

Hanoi Noibai

Sun 4/26

11:35 am-6:00 pm

1 stop20h 25m

$520

HanoiOntario

HAN - ONT

HANONT

Hanoi Noibai

Sat 3/28

11:20 am-5:50 pm

1 stop20h 30m

$524

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/11

Showing 1-10 of 16 results
1
2

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 November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Hanoi-Ontario flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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

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

Alternative routes for Hanoi to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
Ho Chi Minh City to Los Angeles flights
Ho Chi Minh City to Ontario flights
Ho Chi Minh City to San Francisco flights
Hanoi to Los Angeles flights
Hanoi to San Francisco flights
Ho Chi Minh City to Santa Ana flights
Ho Chi Minh City to Long Beach flights
Ho Chi Minh City to San Jose flights
Da Nang to Los Angeles flights
Da Nang to San Francisco flights
Hanoi to Oakland flights
Hanoi to San Jose flights
Ho Chi Minh City to Oakland flights
Hanoi to Santa Ana flights
Nha Trang to Los Angeles flights
Ho Chi Minh City to San Diego flights
Ho Chi Minh City to Las Vegas flights
Hanoi to Las Vegas flights
Da Nang to San Diego flights
Hanoi to San Diego flights
Hanoi to Sacramento flights
Nha Trang to Santa Ana flights
Con Dao to Los Angeles flights

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.