C$ 166 Find Cheap Flights from Ontario to San Francisco Bay Area

1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to San Francisco Bay Area

Travellers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 25% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Free to useThere are no hidden charges or fees.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Useful Info

Good to know

Low seasonJanuary
High seasonAugust
Cheapest flightC$ 166
Best time to beat the crowds (5% less expensive on average)
Most popular time to fly and prices are also 0% lower on average.
Flight from Toronto Region of Waterloo Intl to San Francisco

FAQs for booking flights from Ontario to San Francisco Bay Area

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

    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 Bay Area.

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

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

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

    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 from Ontario to San Francisco Bay Area with an airline and back 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 Bay Area?

    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 from Ontario to San Francisco Bay Area up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • Which is the cheapest airport to fly into in San Francisco Bay Area?

    Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in San Francisco Bay Area is San Francisco Airport (SFO), with an average flight price of C$ 630.

  • What is the cheapest day to fly to San Francisco Bay Area?

    Based on KAYAK data, the cheapest day to fly to San Francisco Bay Area is Friday when round-trip tickets can be as cheap as C$ 761. On the other hand, the most expensive day to fly is Sunday, when round-trip prices are C$ 1,286 on average.

  • What is the cheapest time of day to fly to San Francisco Bay Area?

    The cheapest time of day to fly to San Francisco Bay Area is generally in the afternoon, when round-trip flights cost C$ 466 on average. Morning departures are around 38% cheaper than evening flights, on average. The most expensive time of day to fly to San Francisco Bay Area is generally in the evening, which is peak travel time and where the average cost of a ticket is C$ 1,006.

  • What is the cheapest flight to San Francisco Bay Area?

    The cheapest ticket to San Francisco Bay Area from Ontario found in the last 72 hours was to San Francisco, at C$ 309 round-trip. The most popular route is Toronto Pearson Intl Airport (YYZ) to San Francisco (SFO) and the cheapest round-trip airline ticket found on this route in the last 72 hours was C$ 309.

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

    The cheapest month for flights from Ontario to San Francisco Bay Area is May, when tickets cost C$ 421 (return) on average. On the other hand, the most expensive months are September and August, when the average cost of round-trip tickets is C$ 830 and C$ 732 respectively.

  • How far in advance should I book a flight from Ontario to San Francisco Bay Area?

    To get a below-average price on the flight from Ontario to San Francisco Bay Area, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 17 weeks before departure.

  • How long is the flight to San Francisco Bay Area?

    An average direct flight from Ontario to San Francisco Bay Area takes 14h 53m, covering a distance of 5918 km. The shortest route is Toronto Pearson Intl Airport (YYZ) to San Francisco (SFO) with an average flight time of 5h 33m.

  • What are the most popular destinations in San Francisco Bay Area?

    Based on KAYAK flight searches, the most popular destination is San Francisco (92% of total searches to San Francisco Bay Area). The next most popular destinations are San Jose (7%) and Oakland (1%). Searches for flights to Santa Rosa (0%) are also popular.

Book cheap flights from Ontario to San Francisco Bay Area

Recent round-trip flight deals

21/8Thu
1 stopWestJet
8h 56mYKF-SFO
26/8Tue
1 stopWestJet
8h 26mSFO-YKF
C$ 299
29/8Fri
1 stopWestJet
8h 56mYKF-SFO
8/9Mon
1 stopWestJet
8h 55mSFO-YKF
C$ 310
29/10Wed
1 stopAir Canada
11h 22mYOW-SFO
1/12Mon
1 stopAir Canada
9h 53mSFO-YOW
C$ 371
27/9Sat
direct
5h 38mYYZ-SFO
30/9Tue
1 stop
8h 22mSFO-YYZ
C$ 376
29/7Tue
2 stops
20h 28mYYZ-OAK
5/8Tue
2 stops
21h 12mOAK-YYZ
C$ 380
2/7Wed
1 stopAmerican Airlines
9h 09mYYZ-SFO
16/7Wed
1 stopAmerican Airlines
14h 14mSFO-YYZ
C$ 387
18/7Fri
1 stopAmerican Airlines
14h 53mYYZ-SFO
2/8Sat
1 stopAmerican Airlines
14h 14mSFO-YYZ
C$ 394
7/9Sun
1 stopPorter Airlines
8h 38mYUL-SFO
13/9Sat
1 stopPorter Airlines
8h 12mSFO-YUL
C$ 397
7/9Sun
1 stopPorter Airlines
8h 38mYUL-SFO
13/9Sat
1 stopPorter Airlines
8h 12mSFO-YUL
C$ 399
22/9Mon
directAir Canada
6h 06mYUL-SFO
23/9Tue
directAir Canada
5h 25mSFO-YUL
C$ 418

Search by stops

Search by airline

Search by price

Recent one-way flight deals

20/8Wed
1 stopWestJet
8h 56mYKF-SFO
C$ 166
25/8Mon
2 stopsWestJet
10h 59mYKF-SFO
C$ 167
20/8Wed
directPorter Airlines
5h 38mYYZ-SFO
C$ 193
13/9Sat
1 stopPorter Airlines
8h 23mYOW-SFO
C$ 201
5/9Fri
1 stopFlair Airlines
26h 20mYYZ-SFO
C$ 202
19/9Fri
1 stopFlair Airlines
26h 20mYYZ-SFO
C$ 204
12/8Tue
1 stop
23h 23mYYZ-SFO
C$ 205
15/8Fri
1 stop
14h 43mYYZ-SFO
C$ 209
12/9Fri
1 stopAir Canada
8h 53mYOW-SFO
C$ 210
16/7Wed
1 stopAir Canada
8h 15mYOW-SFO
C$ 212

Search by stops

Search by airline

Search by price

Last minute flights from Ontario to San Francisco Bay Area

Last minute flight, train and bus deals

17/6Tue
multi-stopAir Canada
8h 30mYOW-SFO
9/7Wed
multi-stopAir Canada
7h 25mSFO-YOW
C$ 379
18/6Wed
multi-stopWestJet
9h 05mYHM-SFO
19/7Sat
multi-stopWestJet
30h 56mSFO-YHM
C$ 398
19/6Thu
directPorter Airlines
5h 40mYYZ-SFO
25/6Wed
directPorter Airlines
5h 04mSFO-YYZ
C$ 399
21/6Sat
directPorter Airlines
5h 40mYYZ-SFO
23/6Mon
directPorter Airlines
5h 04mSFO-YYZ
C$ 401
17/6Tue
directPorter Airlines
5h 40mYYZ-SFO
24/6Tue
directPorter Airlines
5h 04mSFO-YYZ
C$ 405
21/6Sat
multi-stopAmerican Airlines
11h 33mYYZ-SFO
15/7Tue
multi-stopAmerican Airlines
9h 31mSFO-YYZ
C$ 429
20/6Fri
multi-stopAmerican Airlines
12h 08mYYZ-SFO
28/6Sat
multi-stopAmerican Airlines
13h 57mSFO-YYZ
C$ 432
18/6Wed
direct
5h 40mYYZ-SFO
6/7Sun
multi-stop
19h 54mSFO-YYZ
C$ 437
18/6Wed
direct
5h 40mYYZ-SFO
6/7Sun
multi-stop
19h 21mSFO-YYZ
C$ 441
18/6Wed
directAir Transat
5h 40mYYZ-SFO
5/7Sat
directAir Transat
5h 04mSFO-YYZ
C$ 456

Search by stops

Search by airline

Search by price

Everything you need to know for your flight to San Francisco Bay Area

Cabin class types available on flights to Ontario

Cabin classes available on flights to Ontario. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.
First Class flights to San Francisco Bay Areafrom C$ 323
Business Class flights to San Francisco Bay Areafrom C$ 456
Prem Econ Class flights to San Francisco Bay Areafrom C$ 403
Economy Class flights to San Francisco Bay Areafrom C$ 98

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.