SFO

C$ 197 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 31/10. 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

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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

Thu, 4 Sep - Thu, 4 Sep
United Airlines Logo
11:23 a.m. - 7:05 p.m.YUL-SFO
10h 42m2 stops
United Airlines Logo
11:45 p.m. - 8:16 a.m.SFO-YUL
5h 31mdirect
C$ 336United Airlines
Find Deal
Thu, 4 Sep - Wed, 10 Sep
WestJet Logo
1:30 p.m. - 9:24 p.m.YYZ-SFO
10h 54m1 stop
WestJet Logo
12:50 p.m. - 12:22 a.m.SFO-YYZ
8h 32m1 stop
C$ 336WestJet
Find Deal
Fri, 31 Oct - Mon, 3 Nov
 Logo
9:45 a.m. - 9:22 p.m.YYZ-SFO
14h 37m1 stop
 Logo
5:45 a.m. - 8:32 p.m.SFO-YYZ
11h 47m1 stop
C$ 337
Find Deal
Thu, 4 Sep - Wed, 10 Sep
WestJet Logo
3:00 p.m. - 9:24 p.m.YYZ-SFO
9h 24m1 stop
WestJet Logo
12:50 p.m. - 12:22 a.m.SFO-YYZ
8h 32m1 stop
C$ 340WestJet
Find Deal
Sat, 8 Nov - Sun, 16 Nov
Flair Airlines Logo
8:00 p.m. - 9:30 a.m.YYZ-SFO
16h 30m1 stop
Flair Airlines Logo
10:15 a.m. - 6:25 a.m.SFO-YYZ
17h 10m1 stop
C$ 345Flair Airlines
Find Deal
Fri, 14 Nov - Sun, 16 Nov
 Logo
9:45 a.m. - 4:54 p.m.YYZ-SFO
10h 09m1 stop
 Logo
5:45 a.m. - 8:32 p.m.SFO-YYZ
11h 47m1 stop
C$ 347
Find Deal
Thu, 30 Oct - Sun, 2 Nov
Porter Airlines Logo
6:45 a.m. - 12:40 p.m.YUL-SFO
8h 55m1 stop
Porter Airlines Logo
1:40 p.m. - 12:35 a.m.SFO-YUL
7h 55m1 stop
C$ 381Porter Airlines
Find Deal
Thu, 4 Sep - Wed, 10 Sep
Air Canada Logo
4:45 p.m. - 7:51 p.m.YUL-SFO
6h 06mdirect
Air Canada Logo
11:40 a.m. - 8:05 p.m.SFO-YUL
5h 25mdirect
C$ 387Air Canada
Find Deal
Fri, 31 Oct - Sun, 2 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$ 389Porter Airlines
Find Deal
Thu, 4 Sep - Wed, 10 Sep
Air Canada Logo
8:25 a.m. - 3:28 p.m.YUL-SFO
10h 03m1 stop
Air Canada Logo
11:35 a.m. - 12:36 a.m.SFO-YUL
10h 01m1 stop
C$ 389Air Canada
Find Deal
Useful Info

Good to know

Low seasonJanuary
Cheapest flightC$ 197
Best time to beat the crowds (6% less expensive on average)
Most popular time to fly and prices are also 2% lower on average.
Flight from Toronto Pearson Airport 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
Redwood City
South San Francisco
Sunnyvale
San Mateo
Palo Alto
Sonoma
Burlingame
San Bruno
Cupertino
Woodland
Big Sur
Pacific Grove
Millbrae
Manteca
Modesto
Calistoga
Roseville
Milpitas
Yountville
Walnut Creek

Everything you need to know for your flight to San Francisco

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

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