Helping travelers to find the best flight offers
Flaut.Travel was designed and developed by a team dedicated to making the process of searching, comparing and booking airline tickets as easy and convenient as possible. Our service helps travelers to find and buy the cheapest flights from Ontario to San Francisco. We have connected more than 40 airlines and airline ticketing agencies to help you find the most suitable and affordable flight option.
A direct flight is the most convenient and comfortable way to fly from Ontario to San Francisco, despite the fact that sometimes flights with transfers can cost significantly less.
A direct flight is the easiest way to get to your destination. The following airlines operate non-stop flights from Ontario to San Francisco:
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We keep tight track on airlines' pre-holidays sales and other special offers occurences all the time to let you save maximum amount of funds while traveling to your family or just going out on vacation.
The route Ontario — San Francisco is served by several airlines: Frontier Airlines, Alaska Airlines, and American Airlines. This gives passengers more freedom in choosing flights. You can consider not only the price but also schedules, baggage policies, and onboard service. Our service compares all offers so you can find tickets from $30 and choose the most convenient option. Thanks to airline competition, you may also find promotional fares or special offers, helping you save even more. Plan your trip in advance and choose the best flights without overpaying.
Los Angeles — San Francisco
01/15/2026
Departure
Direct flight
F92857
Starting at $30
Los Angeles — San Francisco
01/18/2026
Departure
Direct flight
F92857
Starting at $30
Los Angeles — San Jose
12/18/2025
Departure
Direct flight
F92457
Starting at $37
Ontario — San Francisco
12/16/2025
Departure
Direct flight
F92677
Starting at $43
Los Angeles — San Jose
01/01/2026
Departure
Direct flight
F92457
Starting at $48
Los Angeles — San Francisco
01/24/2026
Departure
Direct flight
AS2334
Starting at $57
Los Angeles — San Francisco
08/26/2026
Departure
Direct flight
AS3067
Starting at $67
Los Angeles — San Francisco
12/16/2025
Departure
Direct flight
AA3176
Starting at $72
Ontario — San Francisco
12/30/2025
Departure
Direct flight
F92677
Starting at $75
Los Angeles — San Francisco
07/18/2026
Departure
Direct flight
AS3067
Starting at $87
Unable to find information about the schedule of direct flights from
The cheapest one-way flight from Ontario to San Francisco departs on 01/15/2026, is operated by Frontier Airlines and costs $30
The cheapest roundtrip flight from Ontario to San Francisco departs on 01/11/2026, is operated by Frontier Airlines and costs $69
Fastest flight from Ontario to San Francisco takes 1h 21m
There are direct flights on this route 5 days a week: Su, Tu, We, Th, and Sa
The distance between Ontario and San Francisco is 597km (370 miles). There are 28 direct flights from Ontario to San Francisco. Ontario and San Francisco are in the same time zone. Flights from Ontario begin at 6:00 AM. The latest flight from Ontario departs at 10:50 PM
We couldn't find any special offers for flights from Ontario to San Francisco
The cheapest flight ticket from Ontario to San Francisco according to data for the last 48 hours costs $30
Often the best time to buy tickets from Ontario to San Francisco is 2 months before departure.
Based on statistics over the past years, the lowest prices for flights from Ontario to San Francisco can be found flying in these months: December, January, February.
The fastest flights from Ontario to San Francisco start from 1 hour 21 minutes in the air.
The following airlines operate direct flights on the route Ontario — San Francisco: Frontier Airlines, Alaska Airlines, American Airlines
The minimum one-way ticket price from Ontario to San Francisco is $43 (December 2025), while the maximum is $166 (August 2026). On average, a ticket costs $99–$218.