Cheap flights from San Francisco to Ontario (SFO - ONT) from $21

Sunday flights are generally found to be more expensive for flights from San Francisco to Ontario. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Ontario.

Find a great deal and save up to 48% by booking at least 60 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from San Francisco to Ontario within the next two weeks, with the cheapest ticket starting at $157.

Flights from San Francisco to Ontario lean towards being more expensive in November. Prices are generally better when you fly from San Francisco to Ontario in January, with the cheapest ticket starting at $88.

Unlike in the morning, when flights are generally more expensive, you can save up to 66% on flights from San Francisco to Ontario by exploring options for tickets in the afternoon.

Ontario is the airport most travelers will use when flying to Ontario from San Francisco. Booking flights from San Francisco (SFO) to Ontario (ONT) should be relatively easy as there are 5 daily flights to Ontario from 6 different airlines. 1h 18m is how long a flight from San Francisco to Ontario will take if you book a nonstop flight.

Some of our airline partners flying from San Francisco to Ontario have new flexible policies in place due to COVID-19. United Airlines, Frontier, and Breeze Airways are some of the carriers where you may find flexible cancellation policies. You can use our site to filter for airlines like United Airlines with this kind of flexibility.

Yes, there are multiple flights from San Francisco to Ontario for under $100. The cheapest flight booked recently is on Frontier for just $47, but on average you can expect to pay $62.

Cheapflights has at least 20 direct flights from San Francisco to Ontario under $100. A good price for a nonstop flight from San Francisco to Ontario is less than $62.

There are currently 20+ open flights from San Francisco to Ontario within the next 7 days for less than $100.

Nonstop flights can be found on the following days: Sunday, Monday, Tuesday, Thursday, Friday, Saturday.

Within the past month, 11 users have taken a look at flights from San Francisco to Ontario.

Per day, 7 flights depart from San Francisco to Ontario on average.
Morning (6am - Noon) - 86% of flight departures
Evening (6pm - Midnight) - 14% of flight departures

A quick flight from San Francisco to Ontario can take about 1h 25m. Frontier provides one of the quickest options available for as low as $47. San Francisco and Ontario are separated by a distance of 364 mi. All flights are typically nonstop.

Flying on Frontier is currently your cheapest option to Ontario, with prices starting at $47. You may be able to fly from San Francisco to Ontario for 71% less than the average price by searching for this airline.

Before booking your flight from San Francisco to Ontario check out the most popular airlines for this route: Alaska Airlines, JetBlue or Delta.

No one likes to see their flight delayed. When booking a flight from San Francisco to Ontario consider choosing Frontier (80%), SkyWest Airlines (71%) or Emirates (70%) as they are the most reliable in getting you off to your destination on time.

On average you can expect to pay $83 for a flight from San Francisco to Ontario. The cheapest flight overall is $24 while the most popular route, (San Francisco - Ontario) is currently priced at $73.

SFO stands for San Francisco Airport, while ONT stands for Ontario Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry.