Starting at $16
Starting at $111
Helping travelers to find the best flight offers
A direct flight is the easiest way to get to your destination. The following airlines operate non-stop flights from San Francisco to Ontario:
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.
Starting at $16
Starting at $111
We carefully collect statistics on the search and pricing of airlines and, based on these data, we make an assumption about future prices. Thus, you can better understand which season is the cheapest to fly from San Francisco to Ontario
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 San Francisco to Ontario. We have connected more than 40 airlines and airline ticketing agencies to help you find the most suitable and affordable flight option.
Below you will find a list of airlines operating flights on the San Francisco — Ontario route and the starting prices for flights of each specific airline on it.
A direct flight is the most convenient and comfortable way to fly from San Francisco to Ontario, despite the fact that sometimes flights with transfers can cost significantly less.
San Francisco — Los Angeles
01/28/2025
Departure date
Direct flight
F94594
Starting at $96
San Francisco — Los Angeles
02/02/2025
Departure date
Direct flight
AA3259
Starting at $123
San Francisco — Los Angeles
02/12/2025
Departure date
Direct flight
WN3801
Starting at $61
San Francisco — Los Angeles
04/04/2025
Departure date
Direct flight
WN1198
Starting at $73
San Francisco — Los Angeles
04/11/2025
Departure date
Direct flight
WN4417
Starting at $77
San Francisco — Los Angeles
05/07/2025
Departure date
Direct flight
AS3178
Starting at $122
San Francisco — Los Angeles
05/10/2025
Departure date
Direct flight
AA3169
Starting at $112
San Francisco — Los Angeles
05/15/2025
Departure date
Direct flight
UA646
Starting at $137
San Francisco — Los Angeles
07/12/2025
Departure date
Direct flight
F93308
Starting at $157
San Francisco — Los Angeles
01/25/2025
Departure date
Direct flight
AS2275
Starting at $155
The cheapest flight ticket from San Francisco to Ontario according to data for the last 48 hours costs $17
Often the best time to buy tickets from San Francisco to Ontario is 2 months before departure.
Based on statistics over the past years, the lowest prices for flights from San Francisco to Ontario can be found flying in these months: January, March, February.
The fastest flights from San Francisco to Ontario start from 1 hour 22 minutes in the air.
The following airlines operate direct flights on the route San Francisco — Ontario: Frontier Airlines, American Airlines, Southwest Airlines
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The cheapest one-way flight from San Francisco to Ontario departs on 05/10/2025, is operated by Frontier Airlines and costs $17
The cheapest roundtrip flight from San Francisco to Ontario departs on 05/10/2025, is operated by Frontier Airlines and costs $40
Fastest non-stop flight from San Francisco to Ontario takes 1h 22m
There are direct flights on this route 7 days a week: Su, Mo, Tu, We, Th, Fr, and Sa
We couldn't find any special offers for flights from San Francisco to Ontario