ONT - HAN

$362 Find Cheap Flights from Ontario to Hanoi

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to Hanoi departing on 9/10. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult

KAYAK searches hundreds of travel sites at once for deals on flights to Hanoi

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Hanoi, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Hanoi, as well as popular online travel agencies
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Flights Deals

Cheap Flight Deals from Ontario to Hanoi (ONT-HAN)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to Hanoi that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from Ontario to Hanoi

KAYAK's recommended round-trip deals from the most popular airlines that fly from Ontario to Hanoi.
Discover the best prices for you by selecting your travel dates on KAYAK.
United Airlines Logo
6:00 am - 10:15 pmONT-HAN
26h 15m2 stops
United Airlines Logo
11:35 pm - 5:32 pmHAN-ONT
31h 57m2 stops
$774United Airlines
Find Deal
Tue, Sep 9 - Tue, Sep 30
STARLUX Airlines Logo
11:45 pm - 10:25 amONT-HAN
20h 40m1 stop
STARLUX Airlines Logo
11:10 am - 5:40 pmHAN-ONT
20h 30m1 stop
$843STARLUX Airlines
Find Deal
Fri, Aug 8 - Fri, Aug 29
China Airlines Logo
12:45 am - 10:35 amONT-HAN
19h 50m1 stop
China Airlines Logo
11:35 am - 6:00 pmHAN-ONT
20h 25m1 stop
$850China Airlines
Find Deal
Mon, Sep 8 - Wed, Sep 24
China Airlines Logo
12:45 am - 10:35 amONT-HAN
19h 50m1 stop
China Airlines Logo
11:35 am - 6:00 pmHAN-ONT
20h 25m1 stop
$868China Airlines
Find Deal
Wed, Sep 3 - Thu, Sep 18
Korean Air Logo
6:00 am - 9:35 pmONT-HAN
25h 35m2 stops
Korean Air Logo
11:10 pm - 6:20 pmHAN-ONT
33h 10m2 stops
$957Korean Air
Find Deal
Wed, May 14 - Mon, May 26
 Logo
7:00 am - 9:35 pmONT-HAN
24h 35m2 stops
 Logo
11:35 am - 6:00 pmHAN-ONT
20h 25m1 stop
Tue, Sep 9 - Tue, Sep 30
Korean Air Logo
7:00 am - 9:35 pmONT-HAN
24h 35m2 stops
Korean Air Logo
12:00 pm - 11:46 pmHAN-ONT
25h 46m2 stops
$974Korean Air
Find Deal
Thu, Sep 4 - Thu, Sep 18
 Logo
7:00 am - 9:35 pmONT-HAN
24h 35m2 stops
 Logo
11:35 am - 6:00 pmHAN-ONT
20h 25m1 stop
Wed, Sep 10 - Wed, Sep 24
Delta Logo
11:44 am - 9:35 pmONT-HAN
43h 51m2 stops
Delta Logo
11:10 pm - 10:46 pmHAN-ONT
37h 36m2 stops
$1,460Delta
Find Deal
Sat, May 31 - Wed, Jun 11
Delta Logo
2:55 pm - 9:35 pmONT-HAN
40h 40m2 stops
Delta Logo
11:10 pm - 10:46 pmHAN-ONT
37h 36m2 stops
$1,481Delta
Find Deal
Sat, May 31 - Mon, Jun 9
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KAYAK's insights & trends for Ontario to Hanoi flights

Get data-powered insights and trends into flights from Ontario to Hanoi to help you find the cheapest flights, the best time to fly and much more.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Ontario to Hanoi, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Ontario to Hanoi is March, where tickets cost $860 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is $1,830 and $1,555 respectively.

Good to know

Low seasonJuly
High seasonMarch
Cheapest flight$362
Best time to beat the crowds with an average 10% drop in price.
Most popular time to fly and prices are also 20% lower on average.
Flight from Ontario to Hanoi

When to book flights from Ontario to Hanoi

Are your dates flexible? Find out the best times to travel from Ontario to Hanoi based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Ontario to Hanoi

  • What is the cheapest flight from Ontario to Hanoi?

    In the last 3 days, the lowest price for a flight from Ontario to Hanoi was $362 for a one-way ticket and $774 for a round-trip.

  • Do I need a passport to fly between Ontario and Hanoi?

    Yes

  • Which aircraft models fly most regularly from Ontario to Hanoi?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Ontario to Hanoi?

    oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between Ontario and Hanoi, with SkyTeam being the most commonly used for this route.

  • How does KAYAK find such low prices on flights from Ontario to Hanoi?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ontario to Hanoi.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to Hanoi?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Hanoi from Ontario is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Ontario to Hanoi?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Hanoi with an airline and back to Ontario with another airline. Booking your flights between Ontario and HAN can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario to Hanoi?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Hanoi from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top airline flying from Ontario to Hanoi

 
See real verified KAYAK customer reviews for airlines flying from Ontario to Hanoi. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Ontario to Hanoi? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.3
China AirlinesOverall score based on 732 reviews
8.0Comfort
8.3Boarding
8.0Entertainment
8.5Crew
7.8Food
Airline reviews

Staff was so nice and very helpful with directions aswell!

10.0 ExcellentAnonymous, Apr 2025MNL - TPE
Read more China Airlines reviews

Staff was so nice and very helpful with directions aswell!

Most relaxing long distance flight I have been on. And I have flown on many.

It was our first time flying with China Airlines and had a very nice experience. The airline staff & crews both on the ground and air were very nice. Food on the plane was very good. Will recommend it to family and friends.

I don’t think I’ll be flying them again. Tight seats, no flowing air or air nozzles that you can turn air on you, for those who could have motion sickness this would be your worst nightmare. The pilot was great and experienced (which is what you want when flying 12 hours) overall I’m thankful knowledgeable pilots!

Very routh cabin crew food is only 2 meals for 13 hours fry with them They should get better training how to service good super routh language and talking with customer

I would like to commend the staff from this flight. They all looked happy and I can tell they love what they are doing and constantly smiling while serving the passengers. Special mention to the guy FA in our section. I did not get his name but he is so far the best F.A I have ever encountered!

Boarding could have been a little bit better but other than that it was a pretty good experience. I think because of the stowaway to Paris France recently they are being extra diligent about boarding passes at the gate. But they boarded the back of the plane first, and that's something I really think needs to start in the USA.

I did not take the flight, tried to cancel it right after I booked it, but was unable to reach anyone. I blame Kayak for this situation because they sent the booking through another company and I was unable to get anyone to talk to me about the situation. I had to just take the hit and pay for another flight through Cathay Pacific, which was wonderful. I will never use Kayak again. (I bet they don’t post this review!) I’ll just post about them on social media sites. I don’t want anyone to have to go through the hassle and expense I dealt with.

Bars and restaurants in Taipei close early. The lounge isn’t very good, but better than the public areas.

The food was the only thing that could have made the experience even better. Everything was stellar but the food. The staff was superb. I’ve been flying with ANA for years as my go-to and I think I may have found my new favorite. 😍

Everything you need to know for your flight from Ontario to Hanoi

Information on your arrival and departure airports

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