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- ONT to SFO Flights
Expires Jun 30, 2026. Where applicable discount applies to service fees for qualified airline tickets. Amount of service fee discount varies: maximum savings of $10 per person applied to bookings from one (1) traveler up to five (5) travelers; the maximum discount applied is $50. Promo Code and Instant Savings offers can be combined up to the amount of our service fees but cannot be used or combined with any other coupons, promotions or special offers. May be withdrawn at any time without notice. Promo code only applicable for bookings created over the phone through our call center.
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Michael Harris · Apr 22, 2026| Travel Distance: | 364 Miles |
|---|---|
| Airlines Flying This Route: | United Airlines, Air Canada |
| Weekly Flights: | 58 |
| Avg. Flight Duration: | 05.03 Hours |
A. There are a total of 232 direct flights from Ontario to San Francisco. For travelers seeking convenience and shorter travel times, this data is important when choosing flight options.
A. April is considered the low season for traveling from Ontario to San Francisco, California. Travelers looking for cost-effective options and fewer crowds may consider traveling during this period.
A. There are as many as 7 daily flights available for travelers between ONT to SFO. This data offers flexibility in choosing departure times that best suit your schedule.
A. Monday are the busiest days for passengers flying between Ontario to San Francisco. Knowing the peak travel day can help you plan your trip to avoid overcrowded flights or airports.
A. The last flight to San Francisco typically departs between 12:00AM - 1:00AM. Travelers who prefer late-night departures will find this information valuable for planning their journey.
A. Approximately 35.49% of travelers spent an average of 2 days exploring San Francisco. This information can assist in planning the duration of your stay in San Francisco
A. About 1% of passengers on flights from Ontario to San Francisco were accompanied by children under the age of 14. This information is useful if you're planning a family trip and want to know how common it is to travel with young children on this route.
A. A notable 22% of travelers were aged 60 or older. This statistic provides insights for senior travelers or those seeking a mature travel demographic.
A. Millennials make up a significant portion of travelers on this route, accounting for 35% of all passengers. If you're a millennial looking to connect with like-minded travelers, this statistic might interest you.
A. Almost half of the passengers, approximately 52% were female. Knowing the gender distribution can be useful for solo female travelers or those interested in gender-related travel insights.
A. 0% of travelers booked first or business class on this route.
A. The earliest flight departs at 6:00AM - 7:00AM.
A. Monday offer the most flight options in San Francisco.
San Francisco, characterized by the picturesque vicinity of the Pacific Ocean and more than 50 hills, is a major city in the state of California in the USA. This city is best known for the country’s largest bridge- the Golden Gate Bridge. Tourists should visit this city for its top class natural landscape, beautiful beaches, world-class museums and architectural marvels. More, the city also surprises travelers with its strange natural feature called summer fog. Some of the major highlights of San Francisco are the Golden Gate Bridge, Pier 39, and the Fisherman's Wharf.
Things to do in San Francisco
Golden Gate Bridge
Golden Gate Bridge is one of the world’s longest suspension bridges. This bridge runs over Golden Gate, which is a 1-mile wide strait between San Francisco Bay and the Pacific Ocean. This weight of the bridge’s roadway is endured by two cables joined on two fixed towers that stand alongside the bridge.
Fisherman's Wharf
Fisherman’s Wharf nicknamed the ‘Little Italy of San Francisco,’ is a popular waterfront area dotted with top-end restaurants and branded showrooms in San Francisco. This area is home to numerous top-class attractions like Ghirardelli Square, Ripley's Believe it or Not museum, Pier 39, the Mechanical Museums, Wax Museum at Fisherman's Wharf, and the San Francisco Maritime National Historical Park.
Pier 39
If a tourist likes to do some sightseeing, top-end shopping, and enjoy delicious seafood in San Francisco, then Pier 39 is the place he/she should be headed for. This area is one of the most famous waterfront sites in the city and is called thus because it is located on an 18th century pier.
Best Time to Visit San Francisco
Summer season, the months from June to August are the best to book flights from Ontario to San Francisco. It is the time of the year when one gets to see the characteristic summer fog and maximum daylight hours to enjoy the city’s popular attractions. Tourists can book flights from ONT to SFO during summer season when San Francisco celebrates the North Beach Festival and Fillmore Street Jazz Festival.

We offer a number of discount and savings opportunities to our customers. When searching for airfares, discount and savings claims are based on multiple factors, including searching over 500 airlines to find the available fare. Coupon codes are valid for savings for qualified bookings off our service fees. Seniors and youth may find specific discounted fares offered by certain airlines subject to airline qualifications. Military, bereavement and visually impaired travelers are eligible for discounts off our post-booking service fees as outlined in our compassion exception policy.
* Unless otherwise noted, fares are one way/roundtrip. Fares include all fuel surcharges, taxes & fees and our service fees . Displayed fares are based on historical data, are subject to change. Tickets are nonrefundable, nontransferable, non-assignable and subject to airline restrictions. Name changes are not permitted. There is a higher probability of seats at the stated fare being available on Tuesday, Wednesday and Thursday, and it may require an advance purchase of up to 21 days and/or a Saturday night stay at the destination. Certain blackout dates may apply. Holidays and weekend travel may have a surcharge. See Terms and conditions for other restrictions..

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