S$754 Cheap Flights from Singapore to Ontario Intl. Airport

Based on fares advertised within the last 7 days on Expedia for flights departing within the next year, round-trip journeys from Changi Airport to ONT start from S$1,245. Book now to get the best price for your adventure. Prices and availability are subject to change. Additional terms apply.

Most flights can be cancelled online, but whether you are charged a fee varies between airlines. If you do need to cancel your break, follow the instructions in the Customer Service Portal.

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 SIN to ONT flights, you'll see a "no change fees" filter for you to select.

You'll have 14,200 kilometres to cover on the long-haul Singapore to Ontario route. Wear comfortable clothes and consider taking some noise-cancelling headphones and a sleep mask.

You won't find any airlines flying directly between Singapore Airport and Los Angeles - Ontario Intl. Airport (ONT), so be ready to make at least one stop on your journey. A layover can be a nice way to break up a trip!

Flight prices go up and down like a yo-yo, so it's no sure thing. While last-minute flight deals between Changi Airport and Ontario Airport are possible, it also makes sense to monitor prices well before you fly. In fact, some air carriers publicize their prices up to 12 months prior to the departure date. Expedia is continuously updating the biggest airfare bargains around, so check back often and be ready to lock in your seat when the fares dip.