Cheap Flights from Ontario (ONT) to Singapore (SIN)

View AU$624 flight on Tue, 5 Aug. 2025Opens in a new window

Popular airlines from Los Angeles - Ontario Intl. Airport (ONT) to Changi Airport (SIN)

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Cheap Flights from Ontario (ONT) to Singapore (SIN)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Tue, 5 Aug. - Tue, 12 Aug.
ONT
Ontario
SIN
Singapore
AU$1,658 Return, found 1 day ago
AU$1,658
Return
found 1 day ago
Select United flight, departing Tue, 5 Aug. from Ontario to Singapore, returning Tue, 12 Aug., priced at AU$1,658 found 1 day ago
United
Tue, 5 Aug. - Tue, 12 Aug.
ONT
Ontario
SIN
Singapore
AU$1,888 Return, found 1 day ago
AU$1,888
Return
found 1 day ago
Select United flight, departing Tue, 5 Aug. from Ontario to Singapore, returning Tue, 12 Aug., priced at AU$1,888 found 1 day ago
Flight from Ontario to Singapore route information
Origin airport
Los Angeles - Ontario Intl.
Destination airport
Changi
Airlines serving
United
Return price
AU$1,657
Distance
14074 km

Your quick guide to flights from Ontario to Singapore

Pick up great flights from Ontario to Singapore

With Expedia, you have your pick of flights a day with 4 airlines covering flights from Ontario to Singapore. Whether you’re on a business trip, a family holiday or a luxury break, just enter your travel dates, hit search then check out your choice of flights. Select from return, one way or multi-city flights, and use the advance search tool if you want a direct or refundable flight. You can narrow your search to show you just your preferred cabin class and airline, too. It’s all easy. You can book direct flights from Ontario to Singapore that take around hours.

Find cheap flights from Ontario to Singapore

From the great flight deals with prices currently ranging from AU$1,658 to AU$1,888, you can choose to see the cheapest flights first. Generally, you can book the cheapest flights from Ontario to Singapore around 4 to 6 weeks in advance. If your travel dates are flexible, try to avoid weekends and peak seasons – when you are more likely to grab the lowest prices. Even last minute, there are some impressive deals. The cheapest time to fly to Singapore is normally in August.

Reasons to book your flight from Ontario to Singapore with Expedia

Expedia makes it easy to find, book, and travel, with everything you need all in one place. When you enter your travel details, find fantastic deals just for you on flight tickets from Ontario to Singapore across all the main airline carriers, so you can save time, dollars, and hassle finding the perfect flight. If you think your plans could change, choose refundable flights so any changes won’t cost you more. Book your flight to Singapore right now and, if you join Expedia Rewards, you earn points this time and every time you travel with Expedia.

Frequently asked questions

How much is a flight from Los Angeles - Ontario Intl. Airport (ONT) to Changi Airport (SIN)?
The lowest price advertised for a round-trip flight between ONT and Changi Airport is AU$1,658. But you better move fast. This price is taken from fares offered within the last 7 days on Expedia for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from ONT to Singapore Airport?
This can differ between airlines, as each has its own terms and conditions. Visit the Customer Service Portal, where you'll find simple instructions on how to cancel your flight online.
How do I find cheap flights from Los Angeles - Ontario Intl. Airport (ONT) to Singapore Airport that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Ontario Airport to Changi Airport (SIN) flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Los Angeles - Ontario Intl. Airport (ONT) to Singapore Airport?
With a flight distance of 14 200 kilometres between Ontario and Singapore, this is a long journey. Remember to keep well hydrated and move your feet and legs every now and then.
Which airlines fly direct from Ontario Airport to SIN?
At present, no airlines offer flights directly from ONT to SIN. You'll need to book a flight with one or more stops. To get the best price and connections, lock in your fare well in advance.
Are Ontario Airport to SIN flight tickets cheaper when they're purchased at the last minute?
Flight prices are always on the move, so there are no guarantees. While last-minute flight deals between Ontario Airport and Changi Airport (SIN) are of course possible, it's also a good idea to keep track of prices well before you fly. In fact, some airlines publish their prices up to a year before the departure date. Expedia is constantly updating the biggest bargains around, so check back often and be ready to lock in your seat when the price dips.

Explore a world of travel with Expedia

Ontario Airports

Los Angeles

Los Angeles Intl. to Singapore
AU$1,059.40

Burbank

*Available to Expedia members.