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Cheap flights from San Francisco to Ontario

SFO — ONT
12 May — 19 May1
1 adult
Sun 12/5
Sun 19/5

Cheap flight deals from San Francisco to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 7 May 2024.

Popular in

January

Cheapest in

April

Average price

C$ 163

Round-trip from

C$ 340
High demand for flights, 35% potential price rise
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Best time to find cheap flights, 24% potential price drop
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Average for round-trip flights in May 2024
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From San Francisco to Ontario
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How far in advance should I book a flight from San Francisco to Ontario?

To save up to 55% on this flight, we recommend booking at least 30 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from San Francisco to Ontario from C$ 190 1-2 weeks out and tickets from C$ 260 for flights departing within the next 72 hours.

What is the cheapest month to fly from San Francisco to Ontario?

April is one of the best times of the year to fly to Ontario from San Francisco. Prices for April average C$ 202 per person but you can even find prices for as low as C$ 60. The most expensive prices can be found in the month of November. Opting for a April flight can save you 14% on your journey compared to booking in November

When is the cheapest time to fly from San Francisco to Ontario (SFO - ONT)?

When flying from San Francisco to Ontario, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

When is the best time to book a flight from San Francisco to Ontario?

Use this chart to determine the optimal time to book a round-trip flight from San Francisco to Ontario. Price data was last updated on 3 May 2024.
The best time to book flights from San Francisco to Ontario is 54 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
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Average price of flights to Ontario by month

Plan your trip from San Francisco to Ontario by taking into account the cheapest months to travel. The average price of a one-way flight from San Francisco to Ontario is currently C$ 0 while a round-trip flight costs C$ 0. Price data was last updated on 5 May 2024.

Currently, September is the cheapest month in which you can book a flight from San Francisco to Ontario (average of C$ 243). Flying from San Francisco to Ontario in August is currently the most expensive (average of C$ 539). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

January

C$ 414

February

C$ 469

March

C$ 567

April

C$ 439

May

C$ 559

June

C$ 548

July

C$ 567

August

C$ 737

September

C$ 332

October

C$ 518

November

C$ 655

December

C$ 522

Temperature and rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average temperature and rainfall totals by month.

LAX

Temperature

14 - 23 °C

Related info for your journey

Find useful and relevant information for your journey from San Francisco to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How popular is this San Francisco to Ontario flight route?

    Flights from San Francisco to Ontario have been viewed 2 times in the past calendar month.

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

    Consider Air Canada (82%), Copa Airlines (81%) or Emirates (76%) when booking your flight. These represent the most reliable airlines when flying from San Francisco to Ontario.

  • What does SFO to ONT mean?

    Great question - SFO to ONT just means San Francisco Airport to Ontario Airport. Now you’ll know what these unique codes when you look for flights!

  • Can I find deals for flights from San Francisco to Ontario that include extra baggage allowance?

    The amount of baggage you can bring on your San Francisco to Ontario flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from San Francisco to Ontario with specific airlines?

    Yes, Cheapflights allows you to browse and filter San Francisco to Ontario flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from San Francisco to Ontario that include hotel bookings?

    Yes. In addition to deals on San Francisco to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Francisco to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Francisco to Ontario.

  • Can I find deals for business class flights from San Francisco to Ontario?

    Yes. Cheapflights offers flight deals from San Francisco to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from San Francisco to Ontario that allow pets onboard?

    Many airlines flying from San Francisco to Ontario offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from San Francisco to Ontario?

    Yes, you can often find last-minute deals on San Francisco to Ontario flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

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Search flights from San Francisco to Ontario by cabin class

Find flights from San Francisco to Ontario, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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Hourly flight availability from San Francisco to Ontario

Find hourly flight availability from San Francisco to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 7 May 2024.
1%of flight departuresEarly morningMidnight to 6 am
46%of flight departuresMorning6 am to noon
0%of flight departuresAfternoonNoon to 6 pm
53%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

Weekly flight availability from San Francisco to Ontario

Explore weekly flight availability from San Francisco to Ontario. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 7 May 2024.
Sunday4daily flights
Monday6daily flights
Tuesday6daily flights
Wednesday6daily flights
Thursday6daily flights
Friday6daily flights
Saturday2daily flights

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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from San Francisco to Ontario?

Cheapflights makes it easy to find San Francisco to Ontario flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from San Francisco to Ontario?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from San Francisco to Ontario for you. Better yet — we are completely free to use.

Can Cheapflights find flights from San Francisco to Ontario with no change fees?

Yes! Cheapflights helps users easily find flights from San Francisco to Ontario with no change fees.

Can Cheapflights notify me if prices for flights from San Francisco to Ontario become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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