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Hanoi

$368+ Cheap flights from Ontario (ONT) to Hanoi (HAN)

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 9/18. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — HAN
oct. 11 — oct. 181
sáb. 10/11
sáb. 10/18
1 adult, Economy
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Cheap flight deals from Ontario to Hanoi

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Hanoi (HAN). 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 septiembre 11, 2025.

Round-trip from

$710
(Delta)

One-way from

$368
(Delta)

Popular in

December

Cheapest in

September

Average price

$834
From Ontario to Hanoi Noibai
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One-way flight from Ontario to Hanoi Noibai
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Highest demand for flights based on searches. 10% potential increase in price ($119 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($66 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Ontario to Hanoi

Cheapest flights from Ontario to Hanoi
Explore the most affordable flight options available from Ontario to Hanoi. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 11, 2025.

This Delta deal was found by Cheapflights users on 9/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/156:00 amONT - HAN
2 stops25h 35mDelta
lun. 9/2212:00 pmHAN - ONT
2 stops25h 42mDelta
Deal found 9/11$710
This Delta deal was found by Cheapflights users on 9/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/156:00 amONT - HAN
2 stops25h 35mDelta
jue. 9/2512:00 pmHAN - ONT
2 stops25h 42mDelta
Deal found 9/11$716
This Delta deal was found by Cheapflights users on 9/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/37:35 amONT - HAN
2 stops23h 10mDelta
lun. 12/111:05 pmHAN - ONT
2 stops38h 42mDelta
Deal found 9/11$724
This Delta deal was found by Cheapflights users on 9/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 9/276:00 amONT - HAN
2 stops38h 40mDelta
mié. 10/111:10 pmHAN - ONT
2 stops38h 32mDelta
Deal found 9/10$760
This Korean Air deal was found by Cheapflights users on 9/11. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/106:45 amONT - HAN
2 stops37h 25mKorean Air
vie. 11/2111:05 pmHAN - ONT
2 stops33h 04mKorean Air
Deal found 9/11$766
This oojo deal was found by Cheapflights users on 9/11. 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.
dom. 10/512:10 amONT - HAN
1 stop26h 40mChina Airlines
lun. 11/311:35 amHAN - ONT
1 stop20h 15mChina Airlines
Deal found 9/11$797
This oojo deal was found by Cheapflights users on 9/10. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/1010:50 pmONT - HAN
1 stop26h 40mChina Airlines
lun. 11/1711:35 amHAN - ONT
1 stop20h 15mChina Airlines
Deal found 9/10$799
This FlightHub deal was found by Cheapflights users on 9/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/111:50 pmONT - HAN
1 stop20h 45mChina Airlines
mié. 11/1211:35 amHAN - ONT
1 stop20h 15mChina Airlines
Deal found 9/10$801
This FlightHub deal was found by Cheapflights users on 9/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/810:50 pmONT - HAN
1 stop26h 40mChina Airlines
sáb. 11/2211:35 amHAN - ONT
1 stop20h 15mChina Airlines
Deal found 9/11$802
This oojo deal was found by Cheapflights users on 9/11. 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.
jue. 11/610:50 pmONT - HAN
1 stop26h 40mChina Airlines
jue. 11/1311:35 amHAN - ONT
1 stop20h 15mChina Airlines
Deal found 9/11$807
This oojo deal was found by Cheapflights users on 9/10. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 10/512:10 amONT - HAN
1 stop20h 25mChina Airlines
dom. 10/195:50 pmHAN - ONT
1 stop38h 10mChina Airlines
Deal found 9/10$809
This Korean Air deal was found by Cheapflights users on 9/11. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/96:45 amONT - HAN
2 stops37h 25mKorean Air
vie. 11/2111:05 pmHAN - ONT
2 stops38h 50mKorean Air
Deal found 9/11$816

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Hanoi 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 septiembre 11, 2025.
Use the filters below to find and compare flights from Ontario to Hanoi that are best for you.

Fly from

Ontario

Fly to

Hanoi

Route

Depart

Return

Price

OntarioHanoi

ONT - HAN

ONTHAN

Ontario

jue. 11/6

7:35 am-9:45 pm

2 stops23h 10m

Hanoi Noibai

jue. 12/4

12:20 pm-10:47 pm

2 stops25h 27m

$710

OntarioHanoi

ONT - HAN

ONTHAN

Ontario

sáb. 9/27

9:50 am-10:40 am

2 stops58h 50m

Hanoi Noibai

mié. 10/1

11:10 pm-11:42 pm

2 stops38h 32m

$716

OntarioHanoi

ONT - HAN

ONTHAN

Ontario

jue. 11/6

7:35 am-9:45 pm

2 stops23h 10m

Hanoi Noibai

lun. 12/1

11:05 pm-10:47 pm

2 stops38h 42m

$724

OntarioHanoi

ONT - HAN

ONTHAN

Ontario

sáb. 1/10

10:50 pm-10:35 am

1 stop20h 45m

Hanoi Noibai

sáb. 1/17

11:35 am-4:50 pm

1 stop20h 15m

$770

OntarioHanoi

ONT - HAN

ONTHAN

Ontario

lun. 1/26

10:50 pm-4:30 pm

1 stop26h 40m

Hanoi Noibai

dom. 2/8

11:35 am-4:50 pm

1 stop20h 15m

$813

OntarioHanoi

ONT - HAN

ONTHAN

Ontario

mié. 1/14

6:00 am-11:05 pm

2 stops26h 05m

Hanoi Noibai

mar. 2/3

12:25 am-12:14 pm

2 stops26h 49m

$902

OntarioHanoi

ONT - HAN

ONTHAN

Ontario

jue. 1/8

6:00 am-11:05 pm

2 stops26h 05m

Hanoi Noibai

mié. 1/28

12:25 am-12:14 pm

2 stops26h 49m

$902

OntarioHanoi

ONT - HAN

ONTHAN

Ontario

sáb. 1/10

6:39 pm-11:05 pm

2 stops37h 26m

Hanoi Noibai

vie. 1/16

12:25 am-5:43 pm

2 stops32h 18m

$909

OntarioHanoi

ONT - HAN

ONTHAN

Ontario

vie. 1/9

6:00 am-11:05 pm

2 stops26h 05m

Hanoi Noibai

jue. 1/22

12:25 am-8:58 pm

2 stops35h 33m

$929

OntarioHanoi

ONT - HAN

ONTHAN

Ontario

lun. 12/8

6:00 am-11:05 pm

2 stops26h 05m

Hanoi Noibai

mié. 12/10

12:25 am-8:42 pm

2 stops35h 17m

$986

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 21 results
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Best time to book a flight from Ontario to Hanoi

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

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

Currently, September is the cheapest month in which you can book a flight from Ontario to Hanoi (average of $864). Flying from Ontario to Hanoi in December is currently the most expensive (average of $1,600). 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 Hanoi

Get insights into the airlines that provide service to Hanoi. 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 Hanoi. Reviews last updated septiembre 11, 2025.
Read through reviews of airlines operating flights from Ontario to Hanoi, such as China Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
China Airlines
8.3
Very good
767 reviews

Entertainment

8.0

Food

7.8

Boarding

8.3

Comfort

8.0

Overall

8.3

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2025

SFO - TPE

Bad News - The flight was delayed and it was due to ground crew issues but the staff were moving things along. The seat size was cramp and i am a lean person. The attendant kept asking me in Chinese when i already stated i don’t speak the language. The food was bad. The taste, aroma, consistent of mush. Even a cafeteria lady can cook better food. Kudos - the pilot made up for lost time to the best of his ability. He made sure that the flight was smooth even though there was occasional turbulence. The landing was great.
China Airlines
8.3
Very good
767 reviews
China Airlines
8.3
Very good
767 reviews

Entertainment

8.0

Food

7.8

Boarding

8.3

Comfort

8.0

Overall

8.3

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2025

SFO - TPE

Bad News - The flight was delayed and it was due to ground crew issues but the staff were moving things along. The seat size was cramp and i am a lean person. The attendant kept asking me in Chinese when i already stated i don’t speak the language. The food was bad. The taste, aroma, consistent of mush. Even a cafeteria lady can cook better food. Kudos - the pilot made up for lost time to the best of his ability. He made sure that the flight was smooth even though there was occasional turbulence. The landing was great.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Hanoi. 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 Ontario to Hanoi?

    Delta and China Airlines can get you from Ontario to Hanoi in just under 20h 45m. Your travel time can differ by up to 2h 25m. The distance from Ontario to Hanoi is about 7664 mi. This flight may include one or multiple stops.

  • What is the cheapest airline to fly from Ontario to Hanoi round-trip?

    Flying on China Airlines is currently your cheapest option to Hanoi, with prices starting at $769. This flight start at 27% lower than the current average price 3 months from now.

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

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

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

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

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

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

    Currently, September is the cheapest month in which you can book a flight from Ontario to Hanoi (average of $864). Flying from Ontario to Hanoi in December is currently the most expensive (average of $1,600). 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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Top airline flying from Ontario to Hanoi

Discover the top airline that operate flights from Ontario to Hanoi. 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 septiembre 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
China AirlinesCheapest$769Average$884FlexibilityNo cancel feeOn-time70%

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