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

Flight FAQs

From San Francisco to Ontario

What airports do I use to fly from San Francisco to Ontario?

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 6 daily flights to Ontario from 10 different airlines. 1h 22m is how long a flight from San Francisco to Ontario will take if you book a nonstop flight.

Which airlines flying from San Francisco to Ontario have flexible cancellations due to COVID-19?

Some of our airline partners flying from San Francisco to Ontario have new flexible policies in place due to COVID-19. United Airlines, American Airlines, and Alaska Airlines 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.

Can I find flights from San Francisco to Ontario for under $100 on Cheapflights?

Yes, there are multiple flights from San Francisco to Ontario for under $100. The cheapest flight booked recently is on Frontier for just $46, but on average you can expect to pay $71.

Are there nonstop flights from San Francisco to Ontario for under $100 on Cheapflights?

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 $71.

Are there last-minute flights available from San Francisco to Ontario for under $100?

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

What days are nonstop flights available from San Francisco to Ontario?

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

How popular is this San Francisco to Ontario flight route?

Within the past month, 37 users have taken a look at flights from San Francisco to Ontario.

How many flights depart from San Francisco to Ontario on average per day?

Per day, 8 flights depart from San Francisco to Ontario on average.
Morning (6am - Noon) - 38% of flight departures
Afternoon (Noon - 6pm) - 13% of flight departures
Evening (6pm - Midnight) - 50% of flight departures

How long is the flight from San Francisco to Ontario?

A quick flight from San Francisco to Ontario can take about 1h 33m. Frontier provides one of the quickest options available for as low as $46. San Francisco and Ontario are separated by a distance of 364 mi. All flights are typically nonstop.

What is the cheapest airline to fly from San Francisco to Ontario round-trip?

Flying on Frontier is currently your cheapest option to Ontario, with prices starting at $46. You may be able to fly from San Francisco to Ontario for 79% less than the average price by searching for this airline.

What are the cheapest airlines to fly from San Francisco to Ontario one-way?

To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $24. United Airlines flights start at $59 while deals on American Airlines start at $76 one-way.

What are the most reliable airlines from San Francisco to Ontario?

No one likes to see their flight delayed. When booking a flight from San Francisco to Ontario consider choosing Frontier (91%), United Airlines (89%) or Air Canada (87%) as they are the most reliable in getting you off to your destination on time.

What are the most popular airlines that fly from San Francisco to Ontario?

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

What are the cheapest flights from San Francisco to Ontario?

On average you can expect to pay $296 for a flight from San Francisco to Ontario. The cheapest flight overall is $53 while the most popular route, (San Francisco - Ontario) is currently priced at $83.