Cheap flights from Ontario (ONT) to Hanoi (HAN) from $543

This is the cheapest one-way flight price, found on 9/20. Prices may vary by date and flight preferences.
ONT — HAN
Sep 26 — Oct 31

How far in advance should I book a flight from Ontario to Hanoi?

Travelers have found it’s best to book a flight 26 days in advance to save up to 18% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 26 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Ontario to Hanoi 1-2 weeks in advance for as low as $1,092, or $1,222 for flights within the next 24 hours.

What is the cheapest month to fly from Ontario to Hanoi?

Our data shows that September tends to be the cheapest month to fly to Hanoi from Ontario. Users have commonly found prices around $1,002 for the month, but tickets can be as low as $787. Due to multiple factors, prepare for potentially higher prices in July.

When is the cheapest time to fly from Ontario to Hanoi (ONT - HAN)?

When flying from Ontario to Hanoi, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Cheap China Airlines flights from Ontario to Hanoi

Peruse some of the lowest-priced China Airlines flights we've found from Ontario to Hanoi. Deals update often to give you more flight options matching your criteria

Cheap Delta flights from Ontario to Hanoi

Have a look at some of the cheapest available Delta flights departing from Ontario and landing in Hanoi. If these deals don't fit your criteria, make sure to check back soon as new deals are always added.

Cheap Ontario to Hanoi flights in September & October 2023

The best prices found for ONT to HAN flights for September, October
These are some of the most attractive deals on flights from Ontario to Hanoi in 2023. Check back soon for alternative fares.

Ontario to Hanoi 2023 flight deals

Cheap flights to Hanoi from Ontario found for this year
These are some of the most attractive deals on flights from Ontario to Hanoi in 2023. Check back soon for alternative fares.

Ontario to Hanoi flights leaving soon

Late deals on return flights to Hanoi from Ontario, departing today and this week
Have a look at some of the flights available from Ontario to Hanoi departing last-minute. Users should double check the flight they book to ensure it matches the day, time, and destination they're looking for.

One-way flights to Hanoi from Ontario

The cheapest one-way flights from Ontario to Hanoi
Take a look at some of the best available options we've come across on one-way flights from Ontario to Hanoi. Users needing a return flight from Ontario to Hanoi should utilize the search form above.

Find flights from Ontario to Hanoi within your budget

Use the slider to find flights from Ontario to Hanoi that fit your budget.

Fly from

Any airport

Fly to

Any airport

Budget

$940 - $1,053

Route

Depart

Return

Price

OntarioHanoi Noibai

ONT - HAN

ONTHAN

Ontario

Mon 3/18

1 stop27h 45m

Hanoi Noibai

Tue 4/2

1 stop20h 30m

OntarioHanoi Noibai

ONT - HAN

ONTHAN

Ontario

Thu 2/15

1 stop20h 50m

Hanoi Noibai

Mon 3/4

1 stop37h 05m

OntarioHanoi Noibai

ONT - HAN

ONTHAN

Ontario

Tue 10/17

2 stops23h 55m

Hanoi Noibai

Wed 11/8

2 stops20h 36m

OntarioHanoi Noibai

ONT - HAN

ONTHAN

Ontario

Sun 10/22

1 stop20h 25m

Hanoi Noibai

Wed 11/8

1 stop37h 05m

OntarioHanoi Noibai

ONT - HAN

ONTHAN

Ontario

Wed 10/18

2 stops42h 35m

Hanoi Noibai

Mon 11/6

2 stops33h 56m

OntarioHanoi Noibai

ONT - HAN

ONTHAN

Ontario

Thu 10/19

1 stop26h 40m

Hanoi Noibai

Thu 11/9

1 stop20h 00m

OntarioHanoi Noibai

ONT - HAN

ONTHAN

Ontario

Tue 3/19

2 stops23h 30m

Hanoi Noibai

Thu 4/4

1 stop20h 30m

OntarioHanoi Noibai

ONT - HAN

ONTHAN

Ontario

Tue 10/17

2 stops23h 55m

Hanoi Noibai

Mon 11/13

2 stops44h 36m

OntarioHanoi Noibai

ONT - HAN

ONTHAN

Ontario

Tue 3/19

2 stops23h 30m

Hanoi Noibai

Fri 4/5

1 stop20h 30m

Flights are sorted by cheapest first

Deals found on 9/20

Reviews of airlines servicing Hanoi

Get a feel of what it's like to fly with China Airlines, Delta and United Airlines from Ontario to Hanoi by reading reviews from past customers. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
China Airlines
8.3
Very good
123 reviews

Crew

8.5

Food

8.1

Comfort

8.1

Overall

8.3

Boarding

8.3

Entertainment

8.3

Reviews

1 / 10

I love everything except for the chair, its a bit small. Also regarding with the seat reservation too, i requested to reserve and willing to pay extra charge for it but they said it’s all taken but when the day of flight, there were seats available in the leg room

China Airlines
8.3
Very good
123 reviews
China Airlines
8.3
Very good
123 reviews

Crew

8.5

Food

8.1

Comfort

8.1

Overall

8.3

Boarding

8.3

Entertainment

8.3

Reviews

1 / 10

I love everything except for the chair, its a bit small. Also regarding with the seat reservation too, i requested to reserve and willing to pay extra charge for it but they said it’s all taken but when the day of flight, there were seats available in the leg room

Japan Airlines
8.2
Very good
401 reviews
China Airlines
8.3
Very good
123 reviews

Crew

8.5

Food

8.1

Comfort

8.1

Overall

8.3

Boarding

8.3

Entertainment

8.3

Reviews

1 / 10

I love everything except for the chair, its a bit small. Also regarding with the seat reservation too, i requested to reserve and willing to pay extra charge for it but they said it’s all taken but when the day of flight, there were seats available in the leg room

Delta
7.9
Good
3,016 reviews
China Airlines
8.3
Very good
123 reviews

Crew

8.5

Food

8.1

Comfort

8.1

Overall

8.3

Boarding

8.3

Entertainment

8.3

Reviews

1 / 10

I love everything except for the chair, its a bit small. Also regarding with the seat reservation too, i requested to reserve and willing to pay extra charge for it but they said it’s all taken but when the day of flight, there were seats available in the leg room

United Airlines
7.4
Good
1,890 reviews
China Airlines
8.3
Very good
123 reviews

Crew

8.5

Food

8.1

Comfort

8.1

Overall

8.3

Boarding

8.3

Entertainment

8.3

Reviews

1 / 10

I love everything except for the chair, its a bit small. Also regarding with the seat reservation too, i requested to reserve and willing to pay extra charge for it but they said it’s all taken but when the day of flight, there were seats available in the leg room

American Airlines
7.2
Good
2,635 reviews
China Airlines
8.3
Very good
123 reviews

Crew

8.5

Food

8.1

Comfort

8.1

Overall

8.3

Boarding

8.3

Entertainment

8.3

Reviews

1 / 10

I love everything except for the chair, its a bit small. Also regarding with the seat reservation too, i requested to reserve and willing to pay extra charge for it but they said it’s all taken but when the day of flight, there were seats available in the leg room

Related info for your journey

Useful info, stats and facts about Ontario to Hanoi flights.

Can I find flights from Ontario to Hanoi for under $1,000 on Cheapflights?

Yes, there are multiple flights from Ontario to Hanoi for under $1,000. The cheapest flight booked recently is on China Airlines for just $940, but on average you can expect to pay $988.

Are there last-minute flights available from Ontario to Hanoi for under $1,100?

There are currently 20+ open flights from Ontario to Hanoi within the next 7 days for less than $1,100.

What does ONT to HAN mean?

Ontario Airport is ONT and Hanoi Noibai Airport is HAN. These codes are created by the International Air Transport Association (IATA) and airlines use them to identify the departing and arrival airports in the flight routes they service.

Other flights from Ontario

Alternative routes for Ontario to Hanoi

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from Ontario to Hanoi

The chart below displays the airlines Cheapflights users traveling from Ontario to Hanoi choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
AirlineCheapestAverageFlexibilityOn-time
China AirlinesCheapest$856Average$953FlexibilityNo cancel feeOn-time70%
Search China Airlines 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.