Question 1

How long does it take to travel from Ontario to San Francisco?

Accepted Answer

A one-way nonstop (direct) flight between Ontario and San Francisco takes around 1.4 hours.

Question 2

What is the flight distance between Ontario and San Francisco?

Accepted Answer

The flight distance between Ontario and San Francisco is 586 km.

Question 3

What airlines offer nonstop (direct) flights between Ontario and San Francisco?

Accepted Answer

Several carriers operate flights between Ontario and San Francisco. Airlines offering nonstop (direct) flights include Frontier Airlines, United Airlines.

Question 4

What are the most popular routes to and from Ontario?

Accepted Answer

Travelers frequently search for route combinations, such as Ontario and Orlando, New York, Denver, London, Austin, Las Vegas, Boston, Stockton, Richmond, Jacksonville, Manchester, Bengaluru, Detroit, Indianapolis, Minneapolis, Boise, Cincinnati, Oklahoma City, Guatemala City, Nassau.

Question 5

What are the most popular routes to and from San Francisco?

Accepted Answer

Travelers frequently search for route combinations, such as San Francisco and London, Dublin, Manchester, Manila, Athens, Tallinn, New Delhi, Las Vegas, Edinburgh, Denpasar, Bengaluru, Riga, Chennai, Atlanta, Bangkok, Washington, D.C., Hyderabad, Los Angeles, New York, Detroit.

Question 6

What airports are near Ontario?

Accepted Answer

The main airport in Ontario is Ontario International. It is also served by Tijuana International, San Diego International, Ontario International, John Wayne, Hollywood Burbank, Palm Springs International, Long Beach, Santa Barbara Municipal, Meadows Field, Hawthorne Municipal.

Question 7

What airports are near San Francisco?

Accepted Answer

The main airport in San Francisco is San Francisco International. It is also served by San Francisco International, Sacramento International, San Jose International, Oakland International, Charles M. Schulz–Sonoma County, Monterey Regional, Stockton Metropolitan, Merced Regional.

Question 8

Is it possible to combine flights, buses, and trains in one itinerary when traveling between Ontario and San Francisco?

Accepted Answer

Yes, it's possible to combine different modes of transport between Ontario and San Francisco thanks to our Virtual Interlining technology. Making use of not only flights but also trains and buses between Ontario and San Francisco can give rise to new adventures. Read more about how Virtual Interlining works on Kiwi.com Stories.

Question 9

What is Virtual Interlining and how do I use it?

Accepted Answer

Virtual Interlining provides a revolutionary way of traveling. You can combine different modes of transport like flights, trains, and buses into one itinerary. And this often saves money. Thanks to the world's largest carrier database, the Kiwi.com search function enables anyone to mix and match different modes of transport easily.

Question 10

Which airlines fly between Ontario and San Francisco?

Accepted Answer

Currently, you can fly between Ontario and San Francisco with Frontier Airlines, United Airlines.

Question 11

When's the best time to travel between Ontario and San Francisco?

Accepted Answer

If you don’t have specific dates for your trip between Ontario and San Francisco, you can enter a date range into the departure and return fields. Most carriers on the Kiwi.com website allow you to search and book up to six months from the day of your search. Order the search results by the best, cheapest, or fastest route, or find the cheapest outbound and return combination in the pricing table.

Question 12

What flights operate between Ontario and San Francisco?

Accepted Answer

Traveling between Ontario and San Francisco, you can choose between direct (nonstop) flights or flights with one or more stops. You can select the number of stops on your journey, including an overnight stopover, and the duration of the stopover. What's more, you can also select where you want to have your stopover. Want to say "Hi" to a friend in another city en route to your destination? Or fancy a quick round of shopping? Go Multi-City or Nomad and add places to your search that you wish to visit.

Question 13

How many airports are there near Ontario?

Accepted Answer

There are a number of airports in and around Ontario. The main one is Ontario International and other nearby airports include Tijuana International, San Diego International, Ontario International, John Wayne, Hollywood Burbank, Palm Springs International, Long Beach, Santa Barbara Municipal, Meadows Field, Hawthorne Municipal

Question 14

How many airports are there near San Francisco?

Accepted Answer

There are a number of airports in and around San Francisco. The main one is San Francisco International and other nearby airports include San Francisco International, Sacramento International, San Jose International, Oakland International, Charles M. Schulz–Sonoma County, Monterey Regional, Stockton Metropolitan, Merced Regional.

Question 15

What time do nonstop (direct) flights between Ontario and San Francisco depart?

Accepted Answer

This depends on the airline's flight schedule. You can easily select your preferred departure time when you search on our website or mobile app. Choose the time of day you wish to depart from Ontario, such as morning, afternoon, evening, or night, or select the exact hours for departure.

Question 16

What time do nonstop (direct) flights between Ontario and San Francisco arrive?

Accepted Answer

This depends on the airline's flight schedule. You can easily select your preferred arrival time when you search on our website or mobile app. Choose the time of day you wish to arrive at San Francisco, such as morning, afternoon, evening, or night, or select the exact hours for arrival.

Question 17

What time do flights between Ontario and San Francisco depart?

Accepted Answer

This depends on the airline's flight schedule. You can easily select your preferred departure time when you search on our website or mobile app. Choose the time of day you wish to depart from Ontario, such as morning, afternoon, evening, or night, or select the exact hours for departure.

Question 18

What time do flights between Ontario and San Francisco arrive?

Accepted Answer

This depends on the airline's flight schedule. You can easily select your preferred arrival time when you search on our website or mobile app. Choose the time of day you wish to arrive at San Francisco, such as morning, afternoon, evening, or night, or select the exact hours for arrival.

Cheapest one-way trip	£22
Cheapest nonstop round-trip	£22
Cheapest round-trip	£41
Average round-trip	£173
Nonstop flights in June	£22 – £194

Airline	Mon 10.06	Tue 11.06	Wed 12.06	Thu 13.06	Fri 14.06	Sat 15.06	Sun 16.06
United Airlines	2	2	2	2	2	2	1
Frontier Airlines	1	1	1	---	1	---	1

Airline	Mon 17.06	Tue 18.06	Wed 19.06	Thu 20.06	Fri 21.06	Sat 22.06	Sun 23.06
United Airlines	2	2	2	2	2	2	1
Frontier Airlines	1	1	1	1	1	1	1

Airline	Mon 24.06	Tue 25.06	Wed 26.06	Thu 27.06	Fri 28.06	Sat 29.06	Sun 30.06
United Airlines	2	2	2	2	2	2	2
Frontier Airlines	1	1	1	1	1	1	1

Airline	Mon 01.07	Tue 02.07	Wed 03.07	Thu 04.07	Fri 05.07	Sat 06.07	Sun 07.07
United Airlines	3	3	3	2	3	3	3
Frontier Airlines	1	1	1	1	1	1	1

Cheap flights from Ontario, CA to San Francisco, CA

Tips to know when travelling to San Francisco

Cheapest one-way trip

Cheapest nonstop round-trip

Cheapest round-trip

Average round-trip

Nonstop flights in June

Search by stops

Search by carrier

Search by price

Search by departure date

One-way trips

Round trips

Weekly direct flights

Weekly direct flights for Mon 10.06 - Sun 16.06

Weekly direct flights for Mon 17.06 - Sun 23.06

Weekly direct flights for Mon 24.06 - Sun 30.06

Weekly direct flights for Mon 01.07 - Sun 07.07

Check-in for a flight from Ontario to San Francisco

Weather in San Francisco

Average Weather

14 day forecast

Frequently asked questions

Explore alternative trips

Flights from Ontario

Flights to San Francisco

Popular routes

The nearest countries with flights to San Francisco

Other destination countries from Ontario

Airports near Ontario

Airports near San Francisco

Kiwi.com: the best free travel app for Android and iPhone

Company

Platform

Features

Discover

Name	Carrier code	IATA Code	Passport needed during booking	Online check-in available
Frontier Airlines	FFT	F9	No	Opens 24 days before flight Closes 1 hours before flight
United Airlines	UAL	UA	Yes	No

Month	Average monthly max temperature	Average monthly min temperature
January	14°C	7°C
February	15°C	8°C
March	15°C	8°C
April	17°C	9°C
May	19°C	10°C
June	21°C	12°C
July	22°C	13°C
August	22°C	14°C
September	23°C	14°C
October	21°C	13°C
November	17°C	10°C
December	13°C	8°C