How does KAYAK find such low prices on flights from Ontario to San Francisco?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ontario to San Francisco.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to San Francisco?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Francisco from Ontario is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from Ontario to San Francisco?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Francisco with an airline and back to Ontario with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario to San Francisco?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Francisco from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

$188 CHEAP FLIGHTS from Ontario to San Francisco

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Flight Deals

Cheap Flights from Ontario to San Francisco

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Direct

Recent round-trip flight deals from Ontario to San Francisco

Wed, Apr 14 - Tue, Apr 20

10:35 am - 3:30 pmYSB Sudbury-SFO San Francisco

7h 55m1 stop Toronto Pearson Intl

8:40 am - 7:31 pmSFO San Francisco-YSB Sudbury

7h 51m1 stop Toronto Pearson Intl

$291Air Canada

Fri, Nov 6 - Mon, Nov 16

6:40 pm - 9:30 pmYYZ Toronto Pearson Intl-SFO San Francisco

5h 50mnonstop

12:00 pm - 7:55 pmSFO San Francisco-YYZ Toronto Pearson Intl

4h 55mnonstop

$294Air Canada

Sun, Dec 6 - Tue, Dec 8

9:50 am - 12:47 pmYYZ Toronto Pearson Intl-SFO San Francisco

5h 57mnonstop

1:45 pm - 9:42 pmSFO San Francisco-YYZ Toronto Pearson Intl

4h 57mnonstop

$295Porter Airlines

Fri, Nov 20 - Tue, Nov 24

4:10 pm - 7:48 amYYZ Toronto Pearson Intl-SFO San Francisco

18h 38m1 stop Denver Intl

8:25 am - 9:35 pmSFO San Francisco-YYZ Toronto Pearson Intl

10h 10m1 stop Montreal Pierre Elliott Trudeau Intl

$295Multiple Airlines

Fri, Dec 4 - Mon, Dec 7

9:50 am - 12:47 pmYYZ Toronto Pearson Intl-SFO San Francisco

5h 57mnonstop

1:45 pm - 9:42 pmSFO San Francisco-YYZ Toronto Pearson Intl

4h 57mnonstop

$296Porter Airlines

Fri, Feb 19 - Tue, Feb 23

5:15 pm - 11:59 pmYYZ Toronto Pearson Intl-SFO San Francisco

9h 44m1 stop Seattle/Tacoma Intl

6:20 pm - 4:05 pmSFO San Francisco-YYZ Toronto Pearson Intl

18h 45m2 stops Boise Air Term. Gowen Fld Seattle/Tacoma Intl

$297Alaska Airlines

Wed, Jan 20 - Mon, Feb 22

1:21 pm - 10:12 pmYYZ Toronto Pearson Intl-SFO San Francisco

11h 51m2 stops Chicago O'Hare Intl Los Angeles

6:08 am - 5:38 pmSFO San Francisco-YYZ Toronto Pearson Intl

8h 30m1 stop Chicago O'Hare Intl

$298American Airlines

Thu, Nov 26 - Sun, Nov 29

10:53 am - 3:35 pmYYZ Toronto Pearson Intl-SFO San Francisco

7h 42m1 stop Chicago O'Hare Intl

11:29 pm - 7:30 amSFO San Francisco-YYZ Toronto Pearson Intl

5h 01mnonstop

$299United Airlines

Fri, Feb 5 - Mon, Feb 8

1:21 pm - 7:57 pmYYZ Toronto Pearson Intl-SFO San Francisco

9h 36m1 stop Chicago O'Hare Intl

6:08 am - 5:44 pmSFO San Francisco-YYZ Toronto Pearson Intl

8h 36m1 stop Chicago O'Hare Intl

$302American Airlines

Sun, Mar 21 - Tue, Mar 30

6:20 am - 9:29 amYYZ Toronto Pearson Intl-SFO San Francisco

6h 09mnonstop

10:45 pm - 6:45 amSFO San Francisco-YYZ Toronto Pearson Intl

5h 00mnonstop

$306United Airlines

Recent last minute flight deals from Ontario to San Francisco

Fri, Oct 30 - Wed, Nov 4

9:50 am - 12:45 pmYYZ Toronto Pearson Intl-SFO San Francisco

5h 55mnonstop

1:45 pm - 9:43 pmSFO San Francisco-YYZ Toronto Pearson Intl

4h 58mnonstop

$369Air Transat

Thu, Oct 29 - Tue, Nov 3

9:50 am - 12:45 pmYYZ Toronto Pearson Intl-SFO San Francisco

5h 55mnonstop

1:45 pm - 9:43 pmSFO San Francisco-YYZ Toronto Pearson Intl

4h 58mnonstop

$370Air Transat

Wed, Oct 28 - Tue, Nov 3

10:45 am - 9:33 pmYTZ Toronto Island-SFO San Francisco

13h 48m1 stop Montreal Pierre Elliott Trudeau Intl

8:25 am - 7:56 pmSFO San Francisco-YTZ Toronto Island

8h 31m1 stop Montreal Pierre Elliott Trudeau Intl

$374Air Canada

Fri, Oct 30 - Tue, Nov 3

9:50 am - 12:45 pmYYZ Toronto Pearson Intl-SFO San Francisco

5h 55mnonstop

1:45 pm - 9:43 pmSFO San Francisco-YYZ Toronto Pearson Intl

4h 58mnonstop

$376Multiple Airlines

Fri, Oct 30 - Wed, Nov 4

9:50 am - 12:45 pmYYZ Toronto Pearson Intl-SFO San Francisco

5h 55mnonstop

1:45 pm - 9:43 pmSFO San Francisco-YYZ Toronto Pearson Intl

4h 58mnonstop

$383Multiple Airlines

Wed, Oct 28 - Wed, Nov 4

10:45 am - 9:33 pmYTZ Toronto Island-SFO San Francisco

13h 48m1 stop Montreal Pierre Elliott Trudeau Intl

8:25 am - 9:36 pmSFO San Francisco-YTZ Toronto Island

10h 11m1 stop Montreal Pierre Elliott Trudeau Intl

$384Air Canada

Thu, Oct 29 - Mon, Nov 2

9:50 am - 12:45 pmYYZ Toronto Pearson Intl-SFO San Francisco

5h 55mnonstop

1:45 pm - 9:43 pmSFO San Francisco-YYZ Toronto Pearson Intl

4h 58mnonstop

$384Porter Airlines

Wed, Oct 28 - Wed, Nov 4

9:50 am - 12:45 pmYYZ Toronto Pearson Intl-SFO San Francisco

5h 55mnonstop

1:45 pm - 9:43 pmSFO San Francisco-YYZ Toronto Pearson Intl

4h 58mnonstop

$415Porter Airlines

Sat, Oct 31 - Wed, Nov 4

6:30 am - 9:29 amYYZ Toronto Pearson Intl-SFO San Francisco

5h 59mnonstop

11:30 pm - 9:47 amSFO San Francisco-YYZ Toronto Pearson Intl

7h 17m1 stop Chicago O'Hare Intl

$497United Airlines

Sat, Oct 31 - Wed, Nov 4

6:30 am - 9:29 amYYZ Toronto Pearson Intl-SFO San Francisco

5h 59mnonstop

7:00 am - 9:15 pmSFO San Francisco-YYZ Toronto Pearson Intl

11h 15m2 stops Los Angeles Chicago O'Hare Intl

$498United Airlines

Recent direct flight deals from Ontario to San Francisco

Fri, Nov 6 - Mon, Nov 16

6:40 pm - 9:30 pmYYZ Toronto Pearson Intl-SFO San Francisco

5h 50mnonstop

12:00 pm - 7:55 pmSFO San Francisco-YYZ Toronto Pearson Intl

4h 55mnonstop

$294Air Canada

Mon, Nov 9 - Sun, Nov 15

6:40 pm - 9:30 pmYYZ Toronto Pearson Intl-SFO San Francisco

5h 50mnonstop

4:40 pm - 12:29 amSFO San Francisco-YYZ Toronto Pearson Intl

4h 49mnonstop

$294Air Canada

Sun, Dec 6 - Tue, Dec 8

9:50 am - 12:47 pmYYZ Toronto Pearson Intl-SFO San Francisco

5h 57mnonstop

1:45 pm - 9:42 pmSFO San Francisco-YYZ Toronto Pearson Intl

4h 57mnonstop

$295Porter Airlines

Fri, Dec 4 - Mon, Dec 7

9:50 am - 12:47 pmYYZ Toronto Pearson Intl-SFO San Francisco

5h 57mnonstop

1:45 pm - 9:42 pmSFO San Francisco-YYZ Toronto Pearson Intl

4h 57mnonstop

$296Porter Airlines

Fri, Feb 5 - Sun, Feb 14

9:50 am - 12:45 pmYYZ Toronto Pearson Intl-SFO San Francisco

5h 55mnonstop

1:45 pm - 9:39 pmSFO San Francisco-YYZ Toronto Pearson Intl

4h 54mnonstop

$298Multiple Airlines

Wed, Mar 24 - Wed, Apr 7

9:50 am - 12:45 pmYYZ Toronto Pearson Intl-SFO San Francisco

5h 55mnonstop

1:45 pm - 9:43 pmSFO San Francisco-YYZ Toronto Pearson Intl

4h 58mnonstop

$304Multiple Airlines

Sun, Mar 21 - Tue, Mar 30

6:20 am - 9:29 amYYZ Toronto Pearson Intl-SFO San Francisco

6h 09mnonstop

10:45 pm - 6:45 amSFO San Francisco-YYZ Toronto Pearson Intl

5h 00mnonstop

$306United Airlines

Thu, Jan 14 - Thu, Jan 21

9:50 am - 12:45 pmYYZ Toronto Pearson Intl-SFO San Francisco

5h 55mnonstop

1:45 pm - 9:39 pmSFO San Francisco-YYZ Toronto Pearson Intl

4h 54mnonstop

$308Air Transat

Tue, Dec 22 - Sun, Jan 10

6:30 am - 9:35 amYYZ Toronto Pearson Intl-SFO San Francisco

6h 05mnonstop

8:10 am - 4:08 pmSFO San Francisco-YYZ Toronto Pearson Intl

4h 58mnonstop

$310United Airlines

Wed, Nov 18 - Fri, Nov 27

9:50 am - 12:44 pmYYZ Toronto Pearson Intl-SFO San Francisco

5h 54mnonstop

1:45 pm - 9:43 pmSFO San Francisco-YYZ Toronto Pearson Intl

4h 58mnonstop

$310Air Transat

Useful Info

Low season	January
High season	December
Cheapest flight	$188

Best time to beat the crowds with an average 25% drop in price.

Most popular time to fly with an average 8% increase in price.

Flight from Toronto Pearson Airport to San Francisco

How does KAYAK find such low prices on flights from Ontario to San Francisco?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ontario to San Francisco.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to San Francisco?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Francisco from Ontario is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from Ontario to San Francisco?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Francisco with an airline and back to Ontario with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario to San Francisco?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Francisco from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Calistoga

Marina

Rohnert Park

Emeryville

Pacifica

Capitola

Millbrae

Newark

Novato

Campbell

Mill Valley

Union City

Windsor

West Sacramento

Belmont

Richmond

Corte Madera

American Canyon

Jenner

Tiburon

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$188 Find Cheap Flights from Ontario to San Francisco - Compare and Save

Cheap Flights from Ontario to San Francisco

Recent round-trip flight deals from Ontario to San Francisco

Recent one-way flight deals from Ontario to San Francisco

Recent last minute flight deals from Ontario to San Francisco

Recent direct flight deals from Ontario to San Francisco

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High season

Cheapest flight

FAQs for booking flights from Ontario to San Francisco

Traveling to a place near San Francisco?

More options for your flight to San Francisco

Complete your trip to San Francisco with a hotel stay or car rental

Information on the airport you'll fly into in San Francisco

Cabin class types available on flights to Ontario

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Flights from domestic origins to San Francisco

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