Cheap flights from San Francisco (SFO) to Ontario (ON)

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How to find the cheapest flight from
San Francisco (SFO) to Ontario

All the information you need to plan the best SFO to YYZ flight in 2022: compare San Francisco to Ontario flight prices with the expected peak season, weather and rainfall in Ontario.
How far in advance should I book a flight from San Francisco to Region of Ontario?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 61 days in advance, which can save you up to 52% on flights from San Francisco to Region of Ontario compared to booking the week you need them. Waiting 61 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $651. For sooner than that we have options available in the next 3 days from $799.

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

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

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

September is one of the best times of the year to fly to Region of Ontario from San Francisco. Prices for September average $554 per person but you can even find prices for as low as $328. The most expensive prices can be found in the month of December. Opting for a September flight can save you 21% on your journey compared to booking in December

Cheap flights from San Francisco to Ontario in July, August 2022

The best prices found for SFO to Ontario flights for July, August
25 Aug - 3 Sep
$299pp
SFO
San Francisco
Multiple Airlines
 
1 STOP
YHM
Toronto Hamilton
YHM
Toronto Hamilton
Multiple Airlines
 
1 STOP
SFO
San Francisco
20 Aug - 30 Aug
$324pp
SFO
San Francisco
Multiple Airlines
 
1 STOP
YYZ
Toronto Pearson Intl
YYZ
Toronto Pearson Intl
Multiple Airlines
 
1 STOP
SFO
San Francisco
20 Aug - 30 Aug
$326pp
SFO
San Francisco
Multiple Airlines
 
1 STOP
YYZ
Toronto Pearson Intl
YYZ
Toronto Pearson Intl
Multiple Airlines
 
1 STOP
SFO
San Francisco

San Francisco to Ontario 2022 flight deals

Cheap flights to Ontario from San Francisco found for this year
20 Oct - 29 Oct
$236pp
SFO
San Francisco
Flair Airlines
 
1 STOP
YKF
Toronto Kitchener-Waterloo
YKF
Toronto Kitchener-Waterloo
Flair Airlines
 
1 STOP
SFO
San Francisco
20 Oct - 29 Oct
$238pp
SFO
San Francisco
Flair Airlines
 
1 STOP
YKF
Toronto Kitchener-Waterloo
YKF
Toronto Kitchener-Waterloo
Flair Airlines
 
1 STOP
SFO
San Francisco
25 Oct - 26 Oct
$246pp
SFO
San Francisco
Flair Airlines
 
1 STOP
YKF
Toronto Kitchener-Waterloo
YKF
Toronto Kitchener-Waterloo
Flair Airlines
 
1 STOP
SFO
San Francisco

Cheap Flair Airlines flights from San Francisco to Ontario

20 Oct - 29 Oct
$236pp
SFO
San Francisco
Flair Airlines
 
1 STOP
YKF
Toronto Kitchener-Waterloo
YKF
Toronto Kitchener-Waterloo
Flair Airlines
 
1 STOP
SFO
San Francisco
20 Oct - 29 Oct
$238pp
SFO
San Francisco
Flair Airlines
 
1 STOP
YKF
Toronto Kitchener-Waterloo
YKF
Toronto Kitchener-Waterloo
Flair Airlines
 
1 STOP
SFO
San Francisco
20 Oct - 29 Oct
$246pp
SFO
San Francisco
Flair Airlines
 
1 STOP
YYZ
Toronto Pearson Intl
YYZ
Toronto Pearson Intl
Flair Airlines
 
1 STOP
SFO
San Francisco

Cheap Air Canada flights from San Francisco to Ontario

16 Nov - 30 Nov
$422pp
SFO
San Francisco
Air Canada
 
1 STOP
YTZ
Toronto Island
YTZ
Toronto Island
Air Canada
 
1 STOP
SFO
San Francisco
16 Aug - 29 Aug
$431pp
SFO
San Francisco
Air Canada
 
1 STOP
YTZ
Toronto Island
YTZ
Toronto Island
Air Canada
 
1 STOP
SFO
San Francisco
10 Nov - 10 Jan
$436pp
SFO
San Francisco
Air Canada
 
1 STOP
YTZ
Toronto Island
YTZ
Toronto Island
Air Canada
 
1 STOP
SFO
San Francisco

Non-stop flights to Ontario from San Francisco

Save time with San Francisco to Ontario direct flight deals
10 Sep - 12 Sep
$402pp
SFO
San Francisco
Air Canada
Non-Stop
YYZ
Toronto Pearson Intl
YYZ
Toronto Pearson Intl
Air Canada
Non-Stop
SFO
San Francisco
16 Nov - 29 Nov
$414pp
SFO
San Francisco
Air Canada
Non-Stop
YYZ
Toronto Pearson Intl
YYZ
Toronto Pearson Intl
Air Canada
Non-Stop
SFO
San Francisco
14 Sep - 19 Sep
$423pp
SFO
San Francisco
Air Canada
Non-Stop
YYZ
Toronto Pearson Intl
YYZ
Toronto Pearson Intl
Air Canada
Non-Stop
SFO
San Francisco

Last minute flights from San Francisco to Ontario

Late deals on round-trip flights to Ontario from San Francisco, departing today and this week
12 Jul - 16 Aug
$470pp
SFO
San Francisco
Multiple Airlines
 
1 STOP
YYZ
Toronto Pearson Intl
YYZ
Toronto Pearson Intl
Multiple Airlines
 
1 STOP
SFO
San Francisco
11 Jul - 6 Aug
$471pp
SFO
San Francisco
Multiple Airlines
 
1 STOP
YYZ
Toronto Pearson Intl
YYZ
Toronto Pearson Intl
Multiple Airlines
 
1 STOP
SFO
San Francisco
11 Jul - 16 Jul
$474pp
SFO
San Francisco
Multiple Airlines
 
1 STOP
YYZ
Toronto Pearson Intl
YYZ
Toronto Pearson Intl
Multiple Airlines
 
1 STOP
SFO
San Francisco

One-way flights to Ontario from San Francisco

The cheapest one-way flights from San Francisco to Ontario
11:30 am - 9:40 am
Flair Airlines
1 Stop
19h 10m
SFO - YYZ
Flair Airlines
$111
Gotogate
11:30 am - 9:40 am
Flair Airlines
1 Stop
19h 10m
SFO - YYZ
Flair Airlines
$112
Gotogate
5:39 am - 8:15 pm
Multiple Airlines
1 Stop
11h 36m
SFO - YYZ
Multiple Airlines
$113
Kiwi.com

Related info for your journey

Useful info, stats and facts about <span class="emphasized">San Francisco</span> to <span class="emphasized">Ontario</span> flights.

Flight FAQs

From San Francisco to Ontario

What airport do you fly from for flights from San Francisco to Ontario?

Most people fly from San Francisco (SFO) if they book a flight from San Francisco to Ontario. San Francisco is conveniently located just 11.8 mi from San Francisco’s city center.

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. Air Canada, United Airlines, and American Airlines are some of the carriers where you may find flexible cancellation policies. You can use our site to filter for airlines like Air Canada with this kind of flexibility.

Can I find flights from San Francisco to Region of Ontario for under $300 on Cheapflights?

Yes, there are multiple flights from San Francisco to Region of Ontario for under $300. The cheapest flight booked recently is on Flair Airlines for just $236, but on average you can expect to pay $268.

Are there nonstop flights from San Francisco to Region of Ontario for under $500 on Cheapflights?

Cheapflights has at least 20 direct flights from San Francisco to Region of Ontario under $500. A good price for a nonstop flight from San Francisco to Region of Ontario is less than $439.

Are there last-minute flights available from San Francisco to Region of Ontario for under $500?

There are currently 20+ open flights from San Francisco to Region of Ontario within the next 7 days for less than $500.

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

Days when nonstop flights are available for this flight are: Monday, Friday, Saturday.

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

Per day, 5 flights depart from San Francisco to Region of Ontario on average.
Morning (6am - Noon) - 40% of flight departures
Afternoon (Noon - 6pm) - 60% of flight departures

How long is the flight from San Francisco to Region of Ontario?

Airlines like Flair Airlines fly from San Francisco to Region of Ontario in about 16h 55m. The time it takes to get you to your destination can typically vary by up to . There are 2266 mi between San Francisco and Region of Ontario.

What are the cheapest flights from San Francisco to Region of Ontario?

Looking for the cheapest flight from San Francisco to Region of Ontario? While on average our users pay $842, our data indicates the cheapest price to be $184. The most popular route (San Francisco - Toronto Pearson Intl), is priced around $259.

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

Before booking your flight from San Francisco to Region of Ontario check out the most popular airlines for this route: Interjet, American Airlines or Air Canada.

What are the most popular routes from San Francisco to Region of Ontario?

Most travelers choose San Francisco - Toronto Pearson Intl, San Francisco - Toronto Island or San Francisco - Toronto Hamilton when deciding on the best route from San Francisco to Region of Ontario.

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

Before booking your flight to Region of Ontario from San Francisco, check out the most reliable airlines to get you to your destination on time: Singapore Airlines (89%), United Airlines (68%), Austrian Airlines( 61%).

COVID Restrictions

View COVID Travel Restrictions for Ontario, Canada

Do I need a COVID test to fly to Ontario from San Francisco?

Information is based on travel restrictions from San Francisco to Ontario

Most visitors from San Francisco need to provide a negative COVID-19 test result and/or quarantine to enter Ontario.

COVID-19 testing requirements
Visitors from San Francisco must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours for RT-PCR (NAAT) and 1 day for Antigen (quick-test) before departing to Ontario.

Quarantine requirements
Visitors from San Francisco are not required to quarantine after entering Ontario.

Do I need a test to fly back to San Francisco from Ontario?

Returning to San Francisco from Ontario

COVID-19 testing requirements
Visitors from Ontario are not required to present a negative COVID-19 PCR test or antigen result upon entering San Francisco.

Quarantine requirements
Visitors from Ontario are not required to quarantine after entering San Francisco.

Hide COVID Travel Restrictions for Ontario, Canada

Destination points for flights from San Francisco to Ontario

Select to see more specific information for flights from San Francisco to all places in Ontario.

Top 8 airlines flying from San Francisco to Ontario

The chart below displays the airlines Cheapflights users traveling from San Francisco to Ontario choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Airline Cheapest Average Flexibility On-time COVID-19 safety
Juneyao Airlines
$10 $22 No cancel fee 66%

We couldn't confirm the COVID-19 safety measures taken by Juneyao Airlines. Please check directly on their website for additional information.

American Airlines
$153 $348 No cancel fee 71%
WestJet
$178 $435 No cancel fee 60%
Delta
$202 $401 No cancel fee N/A
Air Canada
$207 $638 No cancel fee 67%
United Airlines
$215 $689 No cancel fee 69%
Alaska Airlines
$225 $637 No cancel fee 75%
Interjet
$336 $579 No cancel fee 68%

We couldn't confirm the COVID-19 safety measures taken by Interjet. Please check directly on their website for additional information.

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