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Flights from Ontario to San Francisco

Cheap flight deals from Ontario to San Francisco

We've found these cheap flights for you. You can book one-way or round-trip flight tickets.

  • Round-trip
  • One way

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

When is the cheapest time to fly from Ontario to San Francisco?

We monitor flight fares to help you find the best deals effortlessly

Cheapest flights
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  • Apr

    30 6
  • 6 13
  • 13 20
  • 20 27

  • May

    27 4
  • 4 11
  • 11 18
  • 18 25

  • Jun

    25 1
  • 1 8
  • 8 15
  • 15 22
Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Frequently Asked Questions

  • When are flight tickets from Ontario (ONT) to San Francisco (SFO) the cheapest?

    Airlines adjust prices for flights from Ontario to San Francisco based on the date and time of your booking. By analyzing data from all airlines, on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.

  • How much do flights from Ontario (ONT) to San Francisco (SFO) cost?

    According to Trip.com's data, the lowest price is around AED 504.

  • What is the transportation method from the main airport to downtown in San Francisco?

    • The distance from San Francisco International Airport to downtown is about 17 km, by taxi about 30 minutes.

  • What's the most popular airline for non-stop flights from Ontario (ONT) to San Francisco (SFO)?

    Alaska Airlines operates 1 non-stop flights from Ontario (ONT) to San Francisco (SFO).

  • How many airports are there in San Francisco (SFO)?

    There are 1 airport(s) near San Francisco (SFO): San Francisco International Airport.

How to find a cheap flight from Ontario to San Francisco

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Ontario to San Francisco. Book your flights at the right time and save more.
1
Being flexible with your dates to get the cheapest Ontario to San Francisco ticket.
Tap "Date" on flight search bar to scan through the calender for Ontario to San Francisco airfare over next 6 months in 2025. If you would like to fly in next 3 months, it seems the cheapest date is on Sat, May 3 at AED 49 for one-way flights.
2
Compare cheap Ontario to San Francisco flight deals from over hundreds of airlines.
Our extensive search allows you to compare prices from over 500 airlines to choose the cheapest flight tickets from Ontario to San Francisco. The cheapest airline operating is Frontier Airlines.
3
Set up a Price Alert
By setting up a Price Alert for your Ontario to San Francisco route, you can easily track the price of your airline tickets from without manually checking every day.
4
Don't miss cheap Ontario to San Francisco flight deals and promo codes.
You can always get the latest deals through Trip.com Deals and Promo Codes for cheap flights. If registering a free membership, you can receive more deals for your flights.
5
Book early or wait unitl the last minute.
It's always better to book early. Flight tickets tend to be the cheapest when they are first released, normally about a year before the departure date. So, check online as soon as the flights you want become available. If you miss the cheapest time, you can still find lower-priced tickets as the flight date approaches.
6
Search for flights on the go.
To get the best flight booking experience on the go, download Trip.com and search for cheap flight tickets from Ontario to San Francisco to get exclusive deals for you.

Flight Info | Ontario to San Francisco

Cheapest one-way flight price AED 48
Cheapest return ticket price AED 134
Off-season for travel February
Peak season for travel February
Flight distance 12,799.42 km
Popular airline United Airlines

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