Cheap Flights from San Francisco (SFO) to Ontario Intl. Airport (ONT) from HK$907~

Start packing your bags, because round-trip journeys from San Francisco Intl. Airport (SFO) to Ontario Airport start from HK$1,986. That's based on airfares listed within the last 7 days on Expedia for flights departing within the next year. Prices can increase quickly, so book today to lock in the best deal. Prices and availability are subject to change. Additional terms apply.

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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 San Francisco Intl. Airport (SFO) to ONT flights, you'll see a "no change fees" filter for you to select.

With a flight distance of 590 kilometers, it's just a short hop from SFO to Los Angeles - Ontario Intl. Airport (ONT). It might be a quick flight, but it's still worth bringing along something to keep you busy on board.

United Airlines (UA) is a popular choice. It operates 121 flights from SFO to ONT each month. Another carrier operating on this route is Frontier Airlines (F9). You'll have 21 flights every month to take your pick of.

Booking last minute from San Francisco Airport to Los Angeles - Ontario Intl. Airport (ONT) can be hit-or-miss. You may be able to score a bargain, but you could also miss out completely! If you'd rather start your travel planning early, Expedia compares flight deals up to 12 months in advance. Just bear in mind that not all airlines advertise their prices that far in advance. Our top tip? Check back often as updates are made frequently.