$525 Cheap Flights from Hanoi (HAN) to Ontario (ONT)

View $525 flight on Fri, Jan 16, 2026Opens in a new window

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

Cheap Flights from Hanoi to Ontario (HAN-ONT)

Prices were available within the past 7 days and start at $525 for one-way flights and $846 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

STARLUX Airlines
Fri, Nov 21 - Sat, Nov 29
HAN
Hanoi
ONT
Ontario
$846 Roundtrip, found 4 days ago
$846
Roundtrip
found 4 days ago
Select STARLUX Airlines flight, departing Fri, Nov 21 from Hanoi to Ontario, returning Sat, Nov 29, priced at $846 found 4 days ago
China Airlines
Mon, Feb 2 - Mon, Apr 6
HAN
Hanoi
ONT
Ontario
$864 Roundtrip, found 1 day ago
$864
Roundtrip
found 1 day ago
Select China Airlines flight, departing Mon, Feb 2 from Hanoi to Ontario, returning Mon, Apr 6, priced at $864 found 1 day ago
STARLUX Airlines
Fri, Nov 21 - Sat, Nov 29
HAN
Hanoi
ONT
Ontario
$892 Roundtrip, found 4 days ago
$892
Roundtrip
found 4 days ago
Select STARLUX Airlines flight, departing Fri, Nov 21 from Hanoi to Ontario, returning Sat, Nov 29, priced at $892 found 4 days ago
United
Wed, Mar 11 - Sun, Apr 12
HAN
Hanoi
ONT
Ontario
$902 Roundtrip, found 4 days ago
$902
Roundtrip
found 4 days ago
Select United flight, departing Wed, Mar 11 from Hanoi to Ontario, returning Sun, Apr 12, priced at $902 found 4 days ago
All Nippon Airways
Wed, Mar 11 - Sun, Apr 12
HAN
Hanoi
ONT
Ontario
$918 Roundtrip, found 4 days ago
$918
Roundtrip
found 4 days ago
Select All Nippon Airways flight, departing Wed, Mar 11 from Hanoi to Ontario, returning Sun, Apr 12, priced at $918 found 4 days ago
STARLUX Airlines
Thu, Nov 6 - Fri, Nov 7
HAN
Hanoi
ONT
Ontario
$935 Roundtrip, found 1 day ago
$935
Roundtrip
found 1 day ago
Select STARLUX Airlines flight, departing Thu, Nov 6 from Hanoi to Ontario, returning Fri, Nov 7, priced at $935 found 1 day ago
China Airlines
Thu, Nov 6 - Fri, Nov 7
HAN
Hanoi
ONT
Ontario
$939 Roundtrip, found 1 day ago
$939
Roundtrip
found 1 day ago
Select China Airlines flight, departing Thu, Nov 6 from Hanoi to Ontario, returning Fri, Nov 7, priced at $939 found 1 day ago
STARLUX Airlines
Mon, Dec 15 - Fri, Jan 2
HAN
Hanoi
ONT
Ontario
$944 Roundtrip, found 1 day ago
$944
Roundtrip
found 1 day ago
Select STARLUX Airlines flight, departing Mon, Dec 15 from Hanoi to Ontario, returning Fri, Jan 2, priced at $944 found 1 day ago
STARLUX Airlines
Mon, Feb 2 - Mon, Apr 6
HAN
Hanoi
ONT
Ontario
$950 Roundtrip, found 1 day ago
$950
Roundtrip
found 1 day ago
Select STARLUX Airlines flight, departing Mon, Feb 2 from Hanoi to Ontario, returning Mon, Apr 6, priced at $950 found 1 day ago
Philippine Airlines
Fri, Nov 21 - Sat, Nov 29
HAN
Hanoi
ONT
Ontario
$989 Roundtrip, found 4 days ago
$989
Roundtrip
found 4 days ago
Select Philippine Airlines flight, departing Fri, Nov 21 from Hanoi to Ontario, returning Sat, Nov 29, priced at $989 found 4 days ago

Alternative airports near Ontario

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

Select flight to John Wayne SNA. Cheapest option available. Average driving time to city center is 42 minutes. Flights from $1,631
SNA
John Wayne
Cheapest
Average driving time to city center42 min
Flights from $1,631

Frequently asked questions

How much does a flight from Noi Bai Intl. Airport (HAN) to Los Angeles - Ontario Intl. Airport (ONT) cost?
Secure a cheap one-way flight from $525 or cheap return flight from $846 from Noi Bai Intl. Airport (HAN) to Los Angeles - Ontario Intl. Airport (ONT) 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 Noi Bai Intl. Airport (HAN) to Los Angeles - Ontario Intl. Airport (ONT)?
Traveling in November is a great way to save, as it's the cheapest month for flights between HAN and ONT. You'll usually find the lowest fares during off-peak months.
What is the cheapest airline that flies from Noi Bai Intl. Airport (HAN) to Los Angeles - Ontario Intl. Airport (ONT)?
Expedia's filter tool lets you easily compare different airlines, travel time and fares all in one place. Choose your preferences, then sort by "Price (lowest to highest)" to find the carrier with the cheapest HAN to ONT flight.
How many flights per day from Noi Bai Intl. Airport (HAN) to Los Angeles - Ontario Intl. Airport (ONT)?
Direct flights from Noi Bai Intl. Airport (HAN) to Los Angeles - Ontario Intl. Airport (ONT) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filters. Enter your travel dates and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from HAN to ONT?
Usually you'll find the greatest selection of flight options on a Friday. Tuesdays are often the quietest.* But this can vary depending on the airline, time of year and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Noi Bai Intl. Airport (HAN) to Los Angeles - Ontario Intl. Airport (ONT)?
To touch down at Los Angeles - Ontario Intl. Airport (ONT) on schedule, select a flight that leaves Noi Bai Intl. Airport (HAN) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**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 Noi Bai Intl. Airport (HAN) to Los Angeles - Ontario Intl. Airport (ONT) last-minute?
Holding off until just before your departure to book your flight from HAN to ONT often results in higher prices. While you may come across some last-minute deals, they're not always guaranteed. Be flexible with your itinerary for the best chance of scoring a bargain.
Is it cheaper to book a HAN to ONT flight and hotel package?
You can save money by booking a HAN to ONT flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage it all in one convenient place. Once you've selected your preferred flights and accommodations, consider adding extras such as activities, car rentals and tours.
Can I cancel or change the date of my flight from Noi Bai Intl. Airport (HAN) to Los Angeles - Ontario Intl. Airport (ONT)?
Typically, you can modify or cancel your HAN to ONT flight. However, additional charges may apply, especially if your booking was made over 24 hours ago. Check your itinerary for the airline's rules and fees on flight changes, or if you want more information, head to our Customer Service portal.

Travel information

Origin airport
Noi Bai Intl.
Destination airport
Los Angeles - Ontario Intl.
Airlines serving
Air France, China Airlines, Delta, Japan Airlines, Korean Air, Qatar Airways, STARLUX Airlines, United
Roundtrip price
$846
Distance
7669 mi

Book with confidence

Hanoi to Ontario Flights

The cheapest times to fly from Hanoi to Ontario

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 Hanoi to Ontario are during the month of November. You can find some of the cheapest flights from Hanoi to Ontario with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Hanoi to Ontario

Sunday is one of the best days to book for cheap flights from Hanoi to Ontario: 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 Hanoi to Ontario

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 Hanoi to Ontario in 2025. You can also book with separate airlines for your outbound and return journeys, from $525 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 Hanoi to Ontario 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 Hanoi to Ontario 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.

 

Hanoi to Ontario Flights

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*Available to One Key members.