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YKF - SFO

C$ 196 Find cheap flights from Toronto Kitchener-Waterloo Airport 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 from Kitchener-Waterloo to San Francisco departing on 27/5. 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
0 bags
Sun 26/5
Sun 2/6

Search hundreds of travel sites at once for deals on flights to San Francisco

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Toronto to San Francisco, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Toronto to San Francisco, as well as popular online travel agencies
In the last 7 days, travellers have searched 44,738,066 times on KAYAK, and here is why:

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Cheap flight deals from Kitchener-Waterloo to San Francisco (YKF-SFO)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Kitchener-Waterloo 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 and deals for you by selecting your travel dates.
Choose your dates
9:15 p.m. - 9:30 a.m.YKF-SFO
15h 15m1 stop
10:15 a.m. - 7:05 a.m.SFO-YKF
17h 50m1 stop
C$ 397Flair Airlines
Find Deal
Wed, 22 May - Wed, 29 May
9:15 p.m. - 9:30 a.m.YKF-SFO
15h 15m1 stop
10:15 a.m. - 7:05 a.m.SFO-YKF
17h 50m1 stop
C$ 398Flair Airlines
Find Deal
Wed, 8 May - Wed, 15 May
8:35 p.m. - 9:30 a.m.YKF-SFO
15h 55m1 stop
10:15 a.m. - 7:05 a.m.SFO-YKF
17h 50m1 stop
C$ 456Flair Airlines
Find Deal
Thu, 9 May - Mon, 13 May
8:35 p.m. - 9:30 a.m.YKF-SFO
15h 55m1 stop
10:15 a.m. - 7:00 a.m.SFO-YKF
17h 45m1 stop
C$ 461Flair Airlines
Find Deal
Tue, 4 Jun - Tue, 18 Jun
8:35 p.m. - 9:30 a.m.YKF-SFO
15h 55m1 stop
10:15 a.m. - 7:00 a.m.SFO-YKF
17h 45m1 stop
C$ 464Flair Airlines
Find Deal
Thu, 23 May - Thu, 30 May
6:15 a.m. - 2:33 p.m.YKF-SFO
11h 18m2 stops
12:50 p.m. - 12:52 a.m.SFO-YKF
9h 02m1 stop
C$ 497WestJet
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Fri, 16 Aug - Tue, 20 Aug
6:15 a.m. - 12:00 p.m.YKF-SFO
8h 45m1 stop
12:50 p.m. - 12:52 a.m.SFO-YKF
9h 02m1 stop
C$ 499WestJet
Find Deal
Tue, 13 Aug - Tue, 20 Aug
9:00 a.m. - 12:02 p.m.YKF-SFO
30h 02m2 stops
10:15 a.m. - 7:05 a.m.SFO-YKF
17h 50m1 stop
C$ 508
Find Deal
Fri, 10 May - Mon, 13 May
6:15 a.m. - 12:00 p.m.YKF-SFO
8h 45m1 stop
12:50 p.m. - 12:52 a.m.SFO-YKF
9h 02m1 stop
C$ 510WestJet
Find Deal
Wed, 7 Aug - Wed, 14 Aug
6:15 a.m. - 2:33 p.m.YKF-SFO
11h 18m2 stops
12:50 p.m. - 12:52 a.m.SFO-YKF
9h 02m1 stop
C$ 516WestJet
Find Deal
Tue, 13 Aug - Tue, 20 Aug

Flights from Kitchener-Waterloo to San Francisco - Travel Insights & Trends

Get data-powered insights and trends into flights from Kitchener-Waterloo to San Francisco to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Toronto Kitchener-Waterloo Airport to San Francisco?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Toronto Kitchener-Waterloo Airport to San Francisco, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Toronto Kitchener-Waterloo Airport to San Francisco is January, where tickets cost C$ 551 on average. On the other hand, the most expensive months are December and August, where the average cost of tickets is C$ 739 and C$ 683 respectively.

How far in advance should I book a flight from Toronto Kitchener-Waterloo Airport to San Francisco?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Toronto Kitchener-Waterloo Airport to San Francisco, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Toronto Kitchener-Waterloo Airport to San Francisco, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 83 days before departure.

Which airlines provide the cheapest flights from Toronto Kitchener-Waterloo to San Francisco?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
The best deals for a one-way ticket found by KAYAK users over the last 3 days were on Flair Airlines (C$ 196) and WestJet (C$ 259). The cheapest round-trip tickets were found on Flair Airlines (C$ 397) and WestJet (C$ 497).

Good to know

High season

July

Cheapest flight

C$ 196
Most popular time to fly (40% more expensive on average)
Flight from Toronto Kitchener-Waterloo to San Francisco

When to book flights from Kitchener-Waterloo to San Francisco

Are your dates flexible? Find out the best times to travel from Kitchener-Waterloo to San Francisco based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Toronto Kitchener-Waterloo to San Francisco flights

  • What is the cheapest flight from Toronto Kitchener-Waterloo Airport to San Francisco?

    In the last 3 days, the lowest price for a flight from Toronto Kitchener-Waterloo Airport to San Francisco was C$ 143 for a one-way ticket and C$ 290 for a round-trip.

  • Which aircraft models fly most regularly from Toronto Kitchener-Waterloo to San Francisco?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Toronto Kitchener-Waterloo to San Francisco?

    Star Alliance is the only airline alliance operating flights between Toronto Kitchener-Waterloo and San Francisco.

  • How does KAYAK find such low prices on flights from Toronto Kitchener-Waterloo 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 Toronto Kitchener-Waterloo to San Francisco.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Toronto Kitchener-Waterloo to San Francisco?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Francisco from Toronto Kitchener-Waterloo 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 Toronto Kitchener-Waterloo 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 Toronto Kitchener-Waterloo with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Toronto Kitchener-Waterloo 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 Toronto Kitchener-Waterloo up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top airline flying from Kitchener-Waterloo to San Francisco

 
See real verified KAYAK customer reviews for airlines flying from Toronto to San Francisco. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Kitchener-Waterloo to San Francisco? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.5
WestJetOverall score based on 2985 reviews
7.3comfort
6.5food
8.2crew
7.7boarding
6.5entertainment
Airline reviews

Nice smooth flight with pleasant stewards. Slept most of the flight, they could have slowly turned on the lights to make it more pleasant. Otherwise a good trip.

8.0 ExcellentMark, Apr. 2024YYZ - YWG
Read more about WestJet reviews

Nice smooth flight with pleasant stewards. Slept most of the flight, they could have slowly turned on the lights to make it more pleasant. Otherwise a good trip.

Great! No food was available during the flight due to the catering service strike but snacks were given throughout the flight which was nice.

I wish that seats closer to the front of the plan were available, but when I booked the flight the seats were VERY expensive so I did not book seats at that time. The day before flying only seats at the back of the plane were available. It takes so long to board the plane and empty the plane on arrival due to SO many roller bags.

Crew was rude.didn’t even say hi or welcome to board

Nothing special. Unacceptable wait for baggage on arriving in Calgary

Departure delay on a late night flight. Made us even later. Tired but got home.

Westjet forced me to put my carry-on baggage in check-in probably because I was assigned seat 23A (the last row seat), which had no cabin space, which is unfair. I wanted to carry on my luggage so that I don't have to wait at the airport for my luggage. Also, because there was no cabin space, I was forced to keep my laptop bag under the seat, which I didn't want to as I was carrying 2 laptops and charger. The airline should basically tell people that if you are assigned a last row seat, then you are not allowed a cabin baggage or a personal item.

Easy processing, flight time was quick and staff was professional and kind.

It was delayed by two ours very full no room to move

They seem to have squeezed out a little more legroom in these planes! It was very nice to not have to fold in half to fit in the seats!

Book cheap flights from Toronto to San Francisco

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Toronto to San Francisco found on KAYAK in the last 72 hours.
27/5Mon
1 stopFlair Airlines
15h 15mYKF-SFO
C$ 196
29/5Wed
1 stopFlair Airlines
15h 15mYKF-SFO
C$ 198
30/5Thu
1 stopFlair Airlines
15h 15mYKF-SFO
C$ 200
27/5Mon
1 stopFlair Airlines
15h 55mYKF-SFO
C$ 204
27/5Mon
2 stops
17h 47mYKF-SFO
C$ 245
28/5Tue
3 stops
26h 58mYKF-SFO
C$ 252
16/7Tue
2 stopsWestJet
11h 18mYKF-SFO
C$ 259
24/7Wed
1 stopWestJet
8h 45mYKF-SFO
C$ 263
10/5Fri
1 stopAir Canada
9h 27mYKF-SFO
C$ 296
21/5Tue
2 stopsAir Canada
10h 10mYKF-SFO
C$ 317

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Last minute flights from Kitchener-Waterloo to San Francisco

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Toronto to San Francisco that are departing in the next 10 days.
1/5Wed
multi-stopWestJet
29h 53mYKF-SFO
7/5Tue
multi-stopWestJet
23h 11mSFO-YKF
C$ 926
1/5Wed
multi-stopWestJet
20h 42mYKF-SFO
8/5Wed
multi-stopWestJet
25h 41mSFO-YKF
C$ 1,125
29/4Mon
multi-stopWestJet
23h 14mYKF-SFO
6/5Mon
multi-stopWestJet
23h 11mSFO-YKF
C$ 1,190
30/4Tue
multi-stopWestJet
20h 42mYKF-SFO
14/5Tue
multi-stopWestJet
25h 41mSFO-YKF
C$ 1,371
30/4Tue
multi-stopWestJet
20h 42mYKF-SFO
17/5Fri
multi-stopWestJet
9h 20mSFO-YKF
C$ 1,702
30/4Tue
multi-stopWestJet
20h 42mYKF-SFO
7/5Tue
multi-stopWestJet
25h 41mSFO-YKF
C$ 1,762
30/4Tue
multi-stopWestJet
20h 42mYKF-SFO
14/5Tue
multi-stopWestJet
25h 41mSFO-YKF
C$ 1,825

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Toronto Kitchener-Waterloo - San Francisco Flights

Departure:

Toronto Kitchener-Waterloo (YKF)Canada

Destination:

San Francisco (SFO)United States

Cabin classes:

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