$368 Cheap Flights from Ontario (ONT) to Ho Chi Minh City (SGN)

View $368 flight on Sun, Aug 24, 2025Opens in a new window

Popular airlines from Los Angeles - Ontario Intl. Airport (ONT) to Tan Son Nhat Intl. Airport (SGN)

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Cheap Flights from Ontario to Ho Chi Minh City (ONT-SGN)

Prices were available within the past 7 days and start at $368 for one-way flights and $705 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sun, Aug 24 - Mon, Jan 26
ONT
Ontario
SGN
Ho Chi Minh City
$705 Roundtrip, just found
$705
Roundtrip
just found
Select Delta flight, departing Sun, Aug 24 from Ontario to Ho Chi Minh City, returning Mon, Jan 26, priced at $705 just found
Korean Air
Sun, Aug 24 - Mon, Jan 26
ONT
Ontario
SGN
Ho Chi Minh City
$711 Roundtrip, just found
$711
Roundtrip
just found
Select Korean Air flight, departing Sun, Aug 24 from Ontario to Ho Chi Minh City, returning Mon, Jan 26, priced at $711 just found
Delta
Wed, Aug 20 - Tue, Sep 2
ONT
Ontario
SGN
Ho Chi Minh City
$711 Roundtrip, found 3 hours ago
$711
Roundtrip
found 3 hours ago
Select Delta flight, departing Wed, Aug 20 from Ontario to Ho Chi Minh City, returning Tue, Sep 2, priced at $711 found 3 hours ago
Delta
Wed, Aug 20 - Mon, Sep 1
ONT
Ontario
SGN
Ho Chi Minh City
$717 Roundtrip, found 3 hours ago
$717
Roundtrip
found 3 hours ago
Select Delta flight, departing Wed, Aug 20 from Ontario to Ho Chi Minh City, returning Mon, Sep 1, priced at $717 found 3 hours ago
Delta
Sun, Oct 26 - Wed, Nov 19
ONT
Ontario
SGN
Ho Chi Minh City
$723 Roundtrip, found 6 days ago
$723
Roundtrip
found 6 days ago
Select Delta flight, departing Sun, Oct 26 from Ontario to Ho Chi Minh City, returning Wed, Nov 19, priced at $723 found 6 days ago
Delta
Thu, Sep 25 - Mon, Oct 20
ONT
Ontario
SGN
Ho Chi Minh City
$728 Roundtrip, found 1 hour ago
$728
Roundtrip
found 1 hour ago
Select Delta flight, departing Thu, Sep 25 from Ontario to Ho Chi Minh City, returning Mon, Oct 20, priced at $728 found 1 hour ago
Korean Air
Thu, Aug 21 - Wed, Feb 11
ONT
Ontario
SGN
Ho Chi Minh City
$734 Roundtrip, just found
$734
Roundtrip
just found
Select Korean Air flight, departing Thu, Aug 21 from Ontario to Ho Chi Minh City, returning Wed, Feb 11, priced at $734 just found
United
Wed, Nov 5 - Mon, Dec 8
ONT
Ontario
SGN
Ho Chi Minh City
$750 Roundtrip, found 13 hours ago
$750
Roundtrip
found 13 hours ago
Select United flight, departing Wed, Nov 5 from Ontario to Ho Chi Minh City, returning Mon, Dec 8, priced at $750 found 13 hours ago
China Airlines
Mon, Jan 5 - Fri, Jan 30
ONT
Ontario
SGN
Ho Chi Minh City
$800 Roundtrip, just found
$800
Roundtrip
just found
Select China Airlines flight, departing Mon, Jan 5 from Ontario to Ho Chi Minh City, returning Fri, Jan 30, priced at $800 just found
STARLUX Airlines
Wed, Sep 3 - Sun, Oct 5
ONT
Ontario
SGN
Ho Chi Minh City
$825 Roundtrip, found 2 days ago
$825
Roundtrip
found 2 days ago
Select STARLUX Airlines flight, departing Wed, Sep 3 from Ontario to Ho Chi Minh City, returning Sun, Oct 5, priced at $825 found 2 days ago

Find the cheapest month to fly from Ontario (ONT) to Ho Chi Minh City (SGN)

September is typically the cheapest month to fly

From $710 - $984 per traveler.

Graph displaying average flight prices per month

Alternative airports near Ho Chi Minh City

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

Select flight to Tan Son Nhat Intl. SGN. Cheapest and Closest option available. Average driving time to city center is 9 minutes. Flights from $824
SGN
Tan Son Nhat Intl.
CheapestClosest
Average driving time to city center9 min
Flights from $824
Flights from Ontario (ONT) to Ho Chi Minh City (SGN)
Origin airport
Los Angeles - Ontario Intl.
Destination airport
Tan Son Nhat Intl.
Airlines serving
Air France, Alaska Airlines, American Airlines, China Airlines, Delta, Japan Airlines, KLM, Korean Air, Qatar Airways, STARLUX Airlines, United
Roundtrip price
$705
Distance
8189 mi

Ontario to Ho Chi Minh City Flights

The cheapest times to fly from Ontario to Ho Chi Minh City

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 Ho Chi Minh City are during the month of August. You can find some of the cheapest flights from Ontario to Ho Chi Minh City with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Ontario to Ho Chi Minh City

Sunday is one of the best days to book for cheap flights from Ontario to Ho Chi Minh City: 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 Ho Chi Minh City

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 Ho Chi Minh City 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 Ho Chi Minh City 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 Ho Chi Minh City 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.

 

Frequently asked questions

How much does a flight from Los Angeles - Ontario Intl. Airport (ONT) to Tan Son Nhat Intl. Airport (SGN) cost?
Snag a cheap one-way flight from $368 or cheap return flight from $705 from Los Angeles - Ontario Intl. Airport (ONT) to Tan Son Nhat Intl. Airport (SGN) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Los Angeles - Ontario Intl. Airport (ONT) to Tan Son Nhat Intl. Airport (SGN)?
August is the least expensive month to fly from ONT to SGN. Planning your trip for the off-season is often the key to better flight prices.
What is the cheapest airline that flies from Los Angeles - Ontario Intl. Airport (ONT) to Tan Son Nhat Intl. Airport (SGN)?
To find the cheapest airline flying from ONT to SGN, use Expedia's filter tool. Customize your search based on your travel needs, such as preferred carriers and cabin class. You can then sort your results by "Price (lowest to highest)" to discover the cheapest flight right away.
How many flights per day from Los Angeles - Ontario Intl. Airport (ONT) to Tan Son Nhat Intl. Airport (SGN)?
Nonstop flights from Los Angeles - Ontario Intl. Airport (ONT) to Tan Son Nhat Intl. Airport (SGN) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your dates and pick either "1 Stop" or "2+ Stops."
What day of the week has the most flights from ONT to SGN?
Friday is usually the busiest day for flights, while Tuesday is often the quietest.* Keep in mind that flight schedules can vary based on a number of factors, including the season and airline.*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 Tan Son Nhat Intl. Airport (SGN)?
To avoid potential delays on the Los Angeles - Ontario Intl. Airport (ONT) to Tan Son Nhat Intl. Airport (SGN) route, aim to travel before 3 PM. Departures after this hour have a 22% higher chance of being 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 Tan Son Nhat Intl. Airport (SGN) last-minute?
Holding off until right before your break to book your flight from ONT to SGN generally means paying more. While you may find some last-minute deals, there's no guarantee. Keep your travel plans flexible to boost your chances of getting a bargain.
Is it cheaper to book an ONT to SGN flight and hotel package?
Compared with arranging hotels and flights separately, booking an ONT to SGN flight and hotel package with Expedia could result in significant savings. Better still, having everything in one easy place takes the hassle out of travel planning. Simply pick your flights and select from our extensive range of hotels, then personalize your trip with other add-ons like tours, car rentals and activities.
Can I cancel or change the date of my flight from Los Angeles - Ontario Intl. Airport (ONT) to Tan Son Nhat Intl. Airport (SGN)?
Typically, you can modify or cancel your ONT to SGN flight. However, there may be additional charges, especially if you booked over 24 hours ago. Check your itinerary for the airline's rules and fees on flight changes, or if you'd like further details, head to our Customer Service portal.

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*Available to One Key members.