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

Flight FAQs

From Ontario to San Francisco

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

To fly from Ontario to San Francisco, you need to book a flight from Ontario (ONT) to San Francisco (SFO). Nonstop flights to San Francisco from Ontario take 1h 18m on average. When it comes time to book airfare, you have a few options: there are 9 outbound flights from Ontario to San Francisco offered by 10 different airlines.

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

Due to the rapidly changing circumstances due to COVID-19, airlines like United Airlines, American Airlines, and Alaska Airlines flying from Ontario to San Francisco have implemented new flexible cancellation policies.

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

Yes, there are multiple flights from Ontario to San Francisco for under $100. The cheapest flight booked recently is on Frontier for just $46, but on average you can expect to pay $69.

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

Cheapflights has at least 20 direct flights from Ontario to San Francisco under $100. A good price for a nonstop flight from Ontario to San Francisco is less than $69.

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

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

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

You can find nonstop flights on the following days: Wednesday, Thursday, Friday, Saturday.

How popular is this Ontario to San Francisco flight route?

This flight path from Ontario to San Francisco was viewed by 111 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

7 flight departures from Ontario to San Francisco per day on average.
Early Morning (Midnight to 6am) - 29% of flight departures
Morning (6am - Noon) - 43% of flight departures
Afternoon (Noon - 6pm) - 14% of flight departures
Evening (6pm - Midnight) - 14% of flight departures

How long is the flight from Ontario to San Francisco?

A quick flight from Ontario to San Francisco can take about 1h 25m. Frontier provides one of the quickest options available for as low as $46. The distance from Ontario to San Francisco is about 364 mi. All flights are typically nonstop.

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

Flying on Frontier is currently your cheapest option to San Francisco, with prices starting at $46. You may be able to fly from Ontario to San Francisco for 76% less than the average price by searching for this airline.

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

The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $24. However, be on the lookout for offers from United Airlines and American Airlines, as they are both options that can get you from Ontario to San Francisco for a low price.

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

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

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

Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Ontario to San Francisco on time: Copa Airlines (100%), Frontier (92%), Air Canada (82%).

What are the cheapest flights from Ontario to San Francisco?

On average you can expect to pay $365 for a flight from Ontario to San Francisco. The cheapest flight overall is $58 while the most popular route, (Ontario - San Francisco) is currently priced at $83.