$368 Cheap Flights from Ontario (ONT) to Hanoi (HAN)

View $368 flight on Mon, Sep 14, 2026Opens in a new window

Popular airlines from Los Angeles - Ontario Intl. Airport (ONT) to Noi Bai Intl. Airport (HAN)

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Cheap Flights from Ontario to Hanoi (ONT-HAN)

Prices were available within the past 7 days and start at $368 for one-way flights and $710 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Wed, Mar 4 - Wed, Mar 25
ONT
Ontario
HAN
Hanoi
$710 Roundtrip, found 4 hours ago
$710
Roundtrip
found 4 hours ago
Select Delta flight, departing Wed, Mar 4 from Ontario to Hanoi, returning Wed, Mar 25, priced at $710 found 4 hours ago
Korean Air
Mon, Mar 2 - Wed, Mar 25
ONT
Ontario
HAN
Hanoi
$716 Roundtrip, found 4 hours ago
$716
Roundtrip
found 4 hours ago
Select Korean Air flight, departing Mon, Mar 2 from Ontario to Hanoi, returning Wed, Mar 25, priced at $716 found 4 hours ago
Delta
Sun, Apr 19 - Thu, May 7
ONT
Ontario
HAN
Hanoi
$716 Roundtrip, found 2 days ago
$716
Roundtrip
found 2 days ago
Select Delta flight, departing Sun, Apr 19 from Ontario to Hanoi, returning Thu, May 7, priced at $716 found 2 days ago
Korean Air
Wed, Nov 12 - Mon, Nov 24
ONT
Ontario
HAN
Hanoi
$722 Roundtrip, found 5 days ago
$722
Roundtrip
found 5 days ago
Select Korean Air flight, departing Wed, Nov 12 from Ontario to Hanoi, returning Mon, Nov 24, priced at $722 found 5 days ago
Delta
Wed, Nov 12 - Thu, Nov 27
ONT
Ontario
HAN
Hanoi
$724 Roundtrip, found 5 days ago
$724
Roundtrip
found 5 days ago
Select Delta flight, departing Wed, Nov 12 from Ontario to Hanoi, returning Thu, Nov 27, priced at $724 found 5 days ago
United
Sun, Apr 26 - Fri, May 15
ONT
Ontario
HAN
Hanoi
$732 Roundtrip, found 2 days ago
$732
Roundtrip
found 2 days ago
Select United flight, departing Sun, Apr 26 from Ontario to Hanoi, returning Fri, May 15, priced at $732 found 2 days ago
China Airlines
Thu, Mar 19 - Sat, Mar 28
ONT
Ontario
HAN
Hanoi
$741 Roundtrip, just found
$741
Roundtrip
just found
Select China Airlines flight, departing Thu, Mar 19 from Ontario to Hanoi, returning Sat, Mar 28, priced at $741 just found
Delta
Fri, Nov 28 - Tue, Dec 9
ONT
Ontario
HAN
Hanoi
$750 Roundtrip, found 7 hours ago
$750
Roundtrip
found 7 hours ago
Select Delta flight, departing Fri, Nov 28 from Ontario to Hanoi, returning Tue, Dec 9, priced at $750 found 7 hours ago
United
Fri, Nov 28 - Tue, Dec 9
ONT
Ontario
HAN
Hanoi
$751 Roundtrip, found 7 hours ago
$751
Roundtrip
found 7 hours ago
Select United flight, departing Fri, Nov 28 from Ontario to Hanoi, returning Tue, Dec 9, priced at $751 found 7 hours ago
STARLUX Airlines
Fri, Jan 9 - Fri, Jan 16
ONT
Ontario
HAN
Hanoi
$904 Roundtrip, found 1 day ago
$904
Roundtrip
found 1 day ago
Select STARLUX Airlines flight, departing Fri, Jan 9 from Ontario to Hanoi, returning Fri, Jan 16, priced at $904 found 1 day ago

Alternative airports near Hanoi

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Noi Bai Intl. HAN. Cheapest and Closest option available. Average driving time to city center is 24 minutes. Flights from $788
HAN
Noi Bai Intl.
CheapestClosest
Average driving time to city center24 min
Flights from $788

Frequently asked questions

How much does a flight from Los Angeles - Ontario Intl. Airport (ONT) to Noi Bai Intl. Airport (HAN) cost?
Get a cheap one-way flight from $368 or cheap return flight from $710 from Los Angeles - Ontario Intl. Airport (ONT) to Noi Bai Intl. Airport (HAN) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Los Angeles - Ontario Intl. Airport (ONT) to Noi Bai Intl. Airport (HAN)?
Flying in March may help you find better deals, as it's the cheapest month for flights between ONT and HAN. You'll often find the lowest prices during the off-season.
What is the cheapest airline that flies from Los Angeles - Ontario Intl. Airport (ONT) to Noi Bai Intl. Airport (HAN)?
Expedia's filter tool lets you easily compare airlines, flight times and baggage options all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to find the carrier with the cheapest ONT to HAN flight.
How many flights per day from Los Angeles - Ontario Intl. Airport (ONT) to Noi Bai Intl. Airport (HAN)?
There are no daily direct flights departing from Los Angeles - Ontario Intl. Airport (ONT) to Noi Bai Intl. Airport (HAN). But you can choose flights with layovers. Filter your search on Expedia to include one or more stops, and you'll be soaring above the clouds in no time.
What day of the week has the most flights from ONT to HAN?
You'll generally find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Los Angeles - Ontario Intl. Airport (ONT) to Noi Bai Intl. Airport (HAN)?
To avoid possible delays on the Los Angeles - Ontario Intl. Airport (ONT) to Noi Bai Intl. Airport (HAN) route, travel before 3 PM. Later departures are 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Los Angeles - Ontario Intl. Airport (ONT) to Noi Bai Intl. Airport (HAN) last-minute?
Last-minute fares from ONT to HAN are usually more expensive. To secure the best rates, start searching for flights well ahead of time. That being said, if you can play around with your travel dates, you may land a cheap fare just before your departure.
Is it cheaper to book an ONT to HAN flight and hotel package?
Compared with arranging flights and hotels separately, booking an ONT to HAN flight and hotel package with Expedia could result in significant savings. Better yet, having everything in one easy place takes the hassle out of planning your trip. Just secure your flights and choose from our extensive range of hotels, then tailor your trip with other add-ons like activities, tours and car rentals.
Can I cancel or change the date of my flight from Los Angeles - Ontario Intl. Airport (ONT) to Noi Bai Intl. Airport (HAN)?
If you reserved your ONT to HAN flight in the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the fare type you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you want more information.

Travel information

Origin airport
Los Angeles - Ontario Intl.
Destination airport
Noi Bai Intl.
Airlines serving
Air France, American Airlines, China Airlines, Delta, Japan Airlines, Korean Air, Qatar Airways, STARLUX Airlines, United
Roundtrip price
$710
Distance
7669 mi

Book with confidence

Ontario to Hanoi Flights

The cheapest times to fly from Ontario to Hanoi

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Ontario to Hanoi are during the month of March. You can find some of the cheapest flights from Ontario to Hanoi with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Ontario to Hanoi

Sunday is one of the best days to book for cheap flights from Ontario to Hanoi: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Ontario to Hanoi

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Ontario to Hanoi in 2025. You can also book with separate airlines for your outbound and return journeys, from $368 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Ontario to Hanoi flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Ontario to Hanoi airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Ontario to Hanoi Flights

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*Available to One Key members.