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Flights from San Francisco to Ontario
Cheap flight deals from San Francisco to Ontario
Here are our top budget-friendly flights, offering flexible one-way or round-trip options. Additional flights with other timings and airlines are also available.
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Round-trip
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One way
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Cheapest nonstopSFO 10:11 PM1h 29mNonstopONT 11:40 PMSan Francisco - Ontario | Fri, Aug 1 | Frontier AirlinesSIN 9:41 PM1h 33mNonstopSFO 11:14 PMOntario - San Francisco | Fri, Aug 8 | Frontier AirlinesPHP 2,763 PHP 3,76827% OFF27% OFFPHP 3,768 PHP 2,763
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SFO 10:11 PM1h 29mNonstopONT 11:40 PMSan Francisco - Ontario | Fri, Aug 8 | Frontier AirlinesSIN 9:41 PM1h 33mNonstopSFO 11:14 PMOntario - San Francisco | Fri, Aug 15 | Frontier AirlinesPHP 2,763 PHP 3,76827% OFF27% OFFPHP 3,768 PHP 2,763
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SFO 10:11 PM1h 29mNonstopONT 11:40 PMSan Francisco - Ontario | Fri, Jul 11 | Frontier AirlinesSIN 9:41 PM1h 33mNonstopSFO 11:14 PMOntario - San Francisco | Fri, Jul 18 | Frontier AirlinesPHP 3,182 PHP 3,76816% OFF16% OFFPHP 3,768 PHP 3,182
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SFO 10:11 PM1h 28mNonstopONT 11:39 PMSan Francisco - Ontario | Mon, Jun 23 | Frontier AirlinesSIN 9:41 PM1h 34mNonstopSFO 11:15 PMOntario - San Francisco | Mon, Jun 30 | Frontier AirlinesPHP 3,19815% OFFPHP 3,768 PHP 3,198
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SFO 10:11 PM1h 29mNonstopONT 11:40 PMSan Francisco - Ontario | Fri, Jul 18 | Frontier AirlinesSIN 9:41 PM1h 33mNonstopSFO 11:14 PMOntario - San Francisco | Mon, Jul 21 | Frontier AirlinesPHP 3,23714% OFFPHP 3,768 PHP 3,237
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SFO 10:11 PM1h 28mNonstopONT 11:39 PMSan Francisco - Ontario | Fri, Jun 20 | Frontier AirlinesSIN 9:41 PM1h 34mNonstopSFO 11:15 PMOntario - San Francisco | Mon, Jun 23 | Frontier AirlinesPHP 3,24514% OFFPHP 3,768 PHP 3,245
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SFO 10:11 PM1h 28mNonstopONT 11:39 PMSan Francisco - Ontario | Fri, Jul 4 | Frontier AirlinesSIN 9:41 PM1h 33mNonstopSFO 11:14 PMOntario - San Francisco | Fri, Jul 11 | Frontier AirlinesPHP 3,24514% OFFPHP 3,768 PHP 3,245
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SFO 10:11 PM1h 29mNonstopONT 11:40 PMSan Francisco - Ontario | Mon, Jul 7 | Frontier AirlinesSIN 9:41 PM1h 33mNonstopSFO 11:14 PMOntario - San Francisco | Mon, Jul 14 | Frontier AirlinesPHP 3,24514% OFFPHP 3,768 PHP 3,245
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SFO 10:11 PM1h 29mNonstopONT 11:40 PMSan Francisco - Ontario | Mon, Jul 21 | Frontier AirlinesSIN 9:41 PM1h 33mNonstopSFO 11:14 PMOntario - San Francisco | Mon, Jul 28 | Frontier AirlinesPHP 3,33012% OFFPHP 3,768 PHP 3,330
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SFO 10:11 PM1h 29mNonstopONT 11:40 PMSan Francisco - Ontario | Sun, Aug 3 | Frontier AirlinesSIN 9:41 PM1h 33mNonstopSFO 11:14 PMOntario - San Francisco | Sun, Aug 10 | Frontier AirlinesPHP 3,35311% OFFPHP 3,768 PHP 3,353
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SFO 1:00 PM17h 25m1 stopsONT Invalid DateSan Francisco - Ontario | Thu, Jun 12 | Normal AirlineONT 3:00 PM6hNonstopSFO 4:00 PMOntario - San Francisco | Sat, Jun 14 | Normal AirlineFind More FlightsFind More Flights
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Cheapest nonstopSFO 10:11 PM1h 28mNonstopONT 11:39 PMSan Francisco - Ontario | Fri, Jul 4 | Frontier AirlinesPHP 1,172 PHP 1,83236% OFF36% OFFPHP 1,832 PHP 1,172
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SFO 10:11 PM1h 29mNonstopONT 11:40 PMSan Francisco - Ontario | Fri, Aug 8 | Frontier AirlinesPHP 1,172 PHP 1,83236% OFF36% OFFPHP 1,832 PHP 1,172
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SFO 10:11 PM1h 28mNonstopONT 11:39 PMSan Francisco - Ontario | Mon, Jun 30 | Frontier AirlinesPHP 1,180 PHP 1,83236% OFF36% OFFPHP 1,832 PHP 1,180
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SFO 10:11 PM1h 29mNonstopONT 11:40 PMSan Francisco - Ontario | Fri, Jul 11 | Frontier AirlinesPHP 1,18036% OFFPHP 1,832 PHP 1,180
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SFO 10:11 PM1h 29mNonstopONT 11:40 PMSan Francisco - Ontario | Fri, Jul 25 | Frontier AirlinesPHP 1,58414% OFFPHP 1,832 PHP 1,584
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SFO 10:11 PM1h 28mNonstopONT 11:39 PMSan Francisco - Ontario | Mon, Jun 23 | Frontier AirlinesPHP 1,59113% OFFPHP 1,832 PHP 1,591
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SFO 10:11 PM1h 28mNonstopONT 11:39 PMSan Francisco - Ontario | Fri, Jun 20 | Frontier AirlinesPHP 1,60712% OFFPHP 1,832 PHP 1,607
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SFO 10:11 PM1h 29mNonstopONT 11:40 PMSan Francisco - Ontario | Mon, Jul 7 | Frontier AirlinesPHP 1,61512% OFFPHP 1,832 PHP 1,615
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SFO 10:11 PM1h 29mNonstopONT 11:40 PMSan Francisco - Ontario | Fri, Jul 18 | Frontier AirlinesPHP 1,61512% OFFPHP 1,832 PHP 1,615
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SFO 10:11 PM1h 29mNonstopONT 11:40 PMSan Francisco - Ontario | Mon, Jul 21 | Frontier AirlinesPHP 1,63011% OFFPHP 1,832 PHP 1,630
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SFO 1:00 PM17h 25m1 stopsONT Invalid DateSan Francisco - Ontario | Thu, Jun 12 | Normal AirlineFind More FlightsFind More Flights
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Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.
Flying from San Francisco to Ontario
Cheapest one-way flight price | PHP 1,171 |
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Cheapest round-trip ticket price | PHP 2,762 |
Off-season for travel | February |
Peak season for travel | February |
Flight distance | 582.01 km |
Popular airline | Frontier Airlines |
When is the cheapest time to fly from San Francisco to Ontario?
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Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.
Frequently Asked Questions
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When are flight tickets from San Francisco (SFO) to Ontario (ONT) the cheapest?
Airlines adjust prices for flights from San Francisco to Ontario based on the departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays. -
How much do flights from San Francisco (SFO) to Ontario (ONT) cost?
According to Trip.com's data, the lowest price is around PHP 7,745.
How to find a cheap flight from San Francisco to Ontario
Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from San Francisco to Ontario. Book your flights at the right time and save more.
Book Early
Once prices are gone, they're gone. Lock in deals while you can!
Compare Flight Prices
Compare prices on travel agency and airline websites.
Look Out for Deals
Check airline and travel agency websites for latest flight deals
Check One-way Fares
Buying two cheap one-way flights can sometimes be a better deal than a round-trip.
Try Different Dates
Flying during the week, early in the morning, or late at night can help save money.
Use the Trip.com App
Save up to £10 per person when booking your flights on Trip.com
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