Schedule of direct flights from San Francisco to Ontario
A direct flight is the easiest way to get to your destination. The following airlines operate non-stop flights from San Francisco to Ontario:
San Francisco airports overview
Ontario airports overview
Frequently asked questions (FAQ)
Answers to questions about the route that travelers are most interested in.
Special offers and sales on air tickets 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.
Alternative routes
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Cheapest one way flight
$32
Frontier Airlines
Direct flight
1h 31m
10/21/2025
The cheapest one-way flight from San Francisco to Ontario departs on 10/21/2025, is operated by Frontier Airlines and costs $32
Cheapest round trip flight
$65
Frontier Airlines
Direct flight
2h 58m
11/01/2025
The cheapest roundtrip flight from San Francisco to Ontario departs on 11/01/2025, is operated by Frontier Airlines and costs $65
The fastest flight
1h 28m
Fastest flight from San Francisco to Ontario takes 1h 28m
Direct flights
Several times a week
There are direct flights on this route 2 days a week: Tu and Sa
Earliest flight
10:45 AM
Latest flight
10:11 PM
Direct flights count
28
Distance
597km
Timezone difference
0h
The distance between San Francisco and Ontario is 597km (370 miles). There are 28 direct flights from San Francisco to Ontario. San Francisco and Ontario are in the same time zone. Flights from San Francisco begin at 10:45 AM. The latest flight from San Francisco departs at 10:11 PM
October 2025
Lowest price
on average:
$36
July 2026
Highest price
on average:
$149
Avg Price
The route San Francisco — Ontario is served by several airlines: United Airlines, Frontier Airlines, and Alaska 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.
Looking for direct flights from San Francisco, United States to Ontario, United States? You're in luck! Enjoy the convenience of direct flights on this route, allowing you to reach your destination swiftly and hassle-free. With several airlines operating direct flights, you have plenty of options to choose from. Check out our air ticket search website to find the best deals and book your tickets effortlessly.
If direct flights are not available on this route, don't worry! There are alternative routes with convenient transfers to get you to Ontario. You can consider connecting flights through major cities like Los Angeles or Las Vegas, providing you with additional options and flexibility. Our user-friendly search platform helps you compare various flight itineraries, allowing you to find the most suitable and cost-effective option for your journey from San Francisco to Ontario. Start planning your trip now and let us make your air travel experience a breeze!
San Francisco — Los Angeles
SFO — LAX
10/14/2025
Departure
Direct flight
UA2465
Starting at $162
San Francisco — Los Angeles
SFO — LAX
10/20/2025
Departure
Direct flight
F93308
Starting at $32
San Francisco — Los Angeles
SFO — LAX
11/04/2025
Departure
Direct flight
F92858
Starting at $30
San Francisco — Los Angeles
SFO — LAX
10/09/2025
Departure
Direct flight
AS2155
Starting at $111
San Francisco — Los Angeles
SFO — LAX
10/10/2025
Departure
Direct flight
AS2125
Starting at $112
San Francisco — Los Angeles
SFO — LAX
10/12/2025
Departure
Direct flight
AS2125
Starting at $182
San Francisco — Los Angeles
SFO — LAX
10/20/2025
Departure
Direct flight
UA1535
Starting at $160
San Francisco — Ontario
SFO — ONT
12/19/2025
Departure
Direct flight
UA5740
Starting at $263
San Francisco — Ontario
SFO — ONT
10/31/2025
Departure
Direct flight
UA216
Starting at $144
Unable to find information about the schedule of direct flights from
How much is the cheapest flight ticket from San Francisco to Ontario?
The cheapest flight ticket from San Francisco to Ontario according to data for the last 48 hours costs $32
When is the best time to buy air tickets on the route San Francisco — Ontario?
Often the best time to buy tickets from San Francisco to Ontario is 2 months before departure.
When is the cheapest time of year to fly from San Francisco to Ontario?
Based on statistics over the past years, the lowest prices for flights from San Francisco to Ontario can be found flying in these months: October, November, December.
How long does it take to fly from San Francisco to Ontario?
The fastest flights from San Francisco to Ontario start from 1 hour 28 minutes in the air.
Which airline can fly direct from San Francisco to Ontario?
The following airlines operate direct flights on the route San Francisco — Ontario: United Airlines, Frontier Airlines, Alaska Airlines
The minimum one-way ticket price from San Francisco to Ontario is $36 (October 2025), while the maximum is $149 (July 2026). On average, a ticket costs $69–$81.
We couldn't find any special offers for flights from San Francisco to Ontario
