SFO

C$ 201 Find Cheap Flights from Ontario to San Francisco

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to San Francisco departing on 13/1. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Flight Deals

Cheap Flights from Ontario to San Francisco

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to San Francisco that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Ontario to San Francisco

Mon, 12 Jan - Sun, 18 Jan
Multiple Airlines Logo
8:00 p.m. - 3:53 p.m.YYZ-SFO
22h 53m1 stop
Multiple Airlines Logo
4:59 p.m. - 6:47 a.m.SFO-YYZ
10h 48m1 stop
C$ 359Multiple Airlines
Find Deal
Thu, 8 Jan - Wed, 21 Jan
Multiple Airlines Logo
9:35 a.m. - 4:51 p.m.YYZ-SFO
10h 16m1 stop
Multiple Airlines Logo
8:00 a.m. - 7:55 p.m.SFO-YYZ
8h 55m1 stop
C$ 365Multiple Airlines
Find Deal
Sun, 23 Nov - Sun, 7 Dec
Porter Airlines Logo
9:45 a.m. - 12:40 p.m.YYZ-SFO
5h 55mdirect
Porter Airlines Logo
1:40 p.m. - 9:39 p.m.SFO-YYZ
4h 59mdirect
C$ 397Porter Airlines
Find Deal
Wed, 19 Nov - Sat, 29 Nov
Porter Airlines Logo
9:45 a.m. - 12:40 p.m.YYZ-SFO
5h 55mdirect
Porter Airlines Logo
1:40 p.m. - 9:37 p.m.SFO-YYZ
4h 57mdirect
C$ 399Porter Airlines
Find Deal
Thu, 4 Dec - Sun, 7 Dec
Air Canada Logo
7:00 a.m. - 3:35 p.m.YYZ-SFO
11h 35m1 stop
Air Canada Logo
8:30 a.m. - 4:28 p.m.SFO-YYZ
4h 58mdirect
C$ 417Air Canada
Find Deal
Mon, 12 Jan - Sun, 18 Jan
WestJet Logo
6:10 p.m. - 12:12 p.m.YHM-SFO
21h 02m1 stop
WestJet Logo
1:00 p.m. - 5:17 p.m.SFO-YHM
25h 17m1 stop
C$ 431WestJet
Find Deal
Tue, 24 Mar - Tue, 31 Mar
WestJet Logo
6:00 a.m. - 12:10 p.m.YOW-SFO
9h 10m1 stop
WestJet Logo
1:00 p.m. - 4:53 p.m.SFO-YOW
24h 53m1 stop
C$ 443WestJet
Find Deal
Sat, 22 Nov - Sat, 6 Dec
Air Canada Logo
3:30 p.m. - 9:22 p.m.YTZ-SFO
8h 52m1 stop
Air Canada Logo
8:25 a.m. - 9:35 p.m.SFO-YTZ
10h 10m1 stop
C$ 445Air Canada
Find Deal
Tue, 6 Jan - Tue, 27 Jan
United Airlines Logo
6:20 a.m. - 7:44 p.m.YOW-SFO
16h 24m2 stops
United Airlines Logo
8:25 a.m. - 6:52 p.m.SFO-YOW
7h 27m1 stop
C$ 551United Airlines
Find Deal
Thu, 20 Nov - Thu, 27 Nov
United Airlines Logo
7:00 a.m. - 3:16 p.m.YUL-SFO
11h 16m2 stops
United Airlines Logo
8:30 a.m. - 9:17 p.m.SFO-YUL
9h 47m2 stops
C$ 596United Airlines
Find Deal

Everything you should know

Cheapest round-trip
C$ 359
Overall average: C$ 513
Multiple Airlines
Mon 12/1Sun 18/1
YYZ - SFO • 1 stop
Cheapest direct flights
C$ 397
Typical prices: C$ 504-C$ 723
Porter Airlines
Sun 23/11Sun 7/12
YYZ - SFO • Direct
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KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to San Francisco!
Useful Info

Good to know

Low seasonJanuary
Cheapest flightC$ 201
Best time to beat the crowds (2% less expensive on average)
Most popular time to fly (38% more expensive on average)
Flight from Hamilton to San Francisco

FAQs for booking flights from Ontario 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.

Travelling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
San Mateo
Sunnyvale
South San Francisco
Palo Alto
Sonoma
Redwood City
Santa Clara
Cupertino
San Bruno
Woodland
Burlingame
Millbrae
Pacific Grove
Big Sur
Milpitas
Mountain View
Roseville
Lodi
Manteca
Walnut Creek

Everything you need to know for your flight to San Francisco

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

San Francisco (SFO)

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