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Cheap flights from Kitchener-Waterloo (YKF) to San Francisco (SFO) from $155

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/18. 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.
YKF — SFO
Jun 2 — Jun 91
From?
To?
Sun 6/2
Sun 6/9
1 adult, Economy
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Cheap flight deals from Kitchener-Waterloo to San Francisco

Discover tips and strategies to find the most affordable flight options for your journey from Kitchener-Waterloo (YKF) to San Francisco (SFO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated May 28, 2024.

Popular in

April

Cheapest in

May

Round-trip from

$268

One-way from

$202
High demand for flights, 34% potential price rise
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Best time to find cheap flights, 25% potential price drop
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From Toronto Kitchener-Waterloo to San Francisco
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One-way flight from Toronto Kitchener-Waterloo to San Francisco
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How far in advance should I book a flight from Toronto Kitchener-Waterloo Airport to San Francisco?

Travelers have found it’s best to book a flight 43 days in advance to save up to 107% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 43 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Toronto Kitchener-Waterloo Airport to San Francisco 1-2 weeks in advance for as low as $508, or $763 for flights within the next 24 hours.

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

Due to multiple factors, expect to potentially pay more when booking in December. For low rates, February can be a great choice for travel to San Francisco. Flights to San Francisco from Toronto Kitchener-Waterloo Airport in February are about $427 on average during February, but can be found for as low as $212.

When is the cheapest time to fly from Toronto Kitchener-Waterloo Airport to San Francisco (YKF - SFO)?

When flying from Toronto Kitchener-Waterloo Airport to San Francisco, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Cheap WestJet flights from Kitchener-Waterloo to San Francisco

Explore cheap flight options specifically provided by WestJet for the route between Kitchener-Waterloo and San Francisco. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,740,132 searches. Data last updated May 28, 2024.
Tue 8/136:15 amYKF - SFO
1 stop8h 45mWestJet
Tue 8/2012:50 pmSFO - YKF
1 stop9h 02mWestJet
Deal found 5/27$411
Thu 7/186:15 amYKF - SFO
1 stop8h 45mWestJet
Tue 7/2312:50 pmSFO - YKF
1 stop9h 02mWestJet
Deal found 5/27$412
Tue 8/136:15 amYKF - SFO
1 stop8h 45mWestJet
Tue 8/2012:50 pmSFO - YKF
1 stop9h 02mWestJet
Deal found 5/27$413
Fri 7/126:15 amYKF - SFO
2 stops11h 18mWestJet
Mon 7/1512:50 pmSFO - YKF
1 stop9h 02mWestJet
Deal found 5/26$415
Tue 9/106:15 amYKF - SFO
1 stop8h 45mWestJet
Thu 9/1912:50 pmSFO - YKF
1 stop9h 08mWestJet
Deal found 5/27$421
Fri 10/186:15 amYKF - SFO
2 stops11h 18mWestJet
Thu 10/2412:50 pmSFO - YKF
1 stop9h 08mWestJet
Deal found 5/27$433
Mon 8/126:20 pmYKF - SFO
1 stop20h 40mWestJet
Mon 8/1912:50 pmSFO - YKF
1 stop9h 02mWestJet
Deal found 5/27$439
Mon 7/156:20 pmYKF - SFO
1 stop25h 53mWestJet
Mon 7/2912:50 pmSFO - YKF
1 stop9h 02mWestJet
Deal found 5/26$441
Sun 9/16:15 amYKF - SFO
1 stop18h 05mWestJet
Sun 9/812:50 pmSFO - YKF
1 stop9h 02mWestJet
Deal found 5/27$447

Cheap Kitchener-Waterloo to San Francisco flights in May & June 2024

Find cheap flight options from Kitchener-Waterloo to San Francisco specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,740,132 searches. Prices were last updated on May 28, 2024.
Fri 6/216:15 amYKF - SFO
1 stop8h 45mWestJet
Tue 6/253:20 pmSFO - YKF
2 stops30h 32mWestJet
Deal found 5/27$532
Tue 6/256:15 amYKF - SFO
1 stop8h 45mWestJet
Sun 7/147:30 amSFO - YKF
1 stop14h 22mWestJet
Deal found 5/28$535
Sat 6/296:15 amYKF - SFO
2 stops11h 18mWestJet
Sat 7/67:30 amSFO - YKF
1 stop14h 22mWestJet
Deal found 5/27$558
Thu 6/276:15 amYKF - SFO
1 stop8h 45mWestJet
Mon 7/812:50 pmSFO - YKF
1 stop9h 02mWestJet
Deal found 5/27$562
Thu 6/206:15 amYKF - SFO
1 stop13h 58mWestJet
Sun 6/233:20 pmSFO - YKF
2 stops30h 32mWestJet
Deal found 5/26$566
Thu 6/206:15 amYKF - SFO
1 stop13h 58mWestJet
Mon 6/246:05 pmSFO - YKF
1 stop27h 47mWestJet
Deal found 5/26$568
Sat 6/296:15 amYKF - SFO
2 stops11h 18mWestJet
Sat 7/63:20 pmSFO - YKF
2 stops30h 32mWestJet
Deal found 5/27$571
Sat 6/296:15 amYKF - SFO
2 stops11h 18mWestJet
Sat 7/67:30 amSFO - YKF
1 stop14h 22mWestJet
Deal found 5/28$579
Fri 6/146:15 amYKF - SFO
1 stop8h 47mWestJet
Fri 6/2112:50 pmSFO - YKF
1 stop9h 02mWestJet
Deal found 5/27$582

Kitchener-Waterloo to San Francisco 2024 flight deals

Discover exclusive flight deals for travel between Kitchener-Waterloo and San Francisco in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,740,132 searches. Data last updated May 28, 2024.
Tue 8/136:15 amYKF - SFO
1 stop8h 45mWestJet
Tue 8/2012:50 pmSFO - YKF
1 stop9h 02mWestJet
Deal found 5/27$411
Thu 7/186:15 amYKF - SFO
1 stop8h 45mWestJet
Tue 7/2312:50 pmSFO - YKF
1 stop9h 02mWestJet
Deal found 5/27$412
Tue 8/136:15 amYKF - SFO
1 stop8h 45mWestJet
Tue 8/2012:50 pmSFO - YKF
1 stop9h 02mWestJet
Deal found 5/27$413
Fri 7/126:15 amYKF - SFO
2 stops11h 18mWestJet
Mon 7/1512:50 pmSFO - YKF
1 stop9h 02mWestJet
Deal found 5/26$415
Tue 9/106:15 amYKF - SFO
1 stop8h 45mWestJet
Thu 9/1912:50 pmSFO - YKF
1 stop9h 08mWestJet
Deal found 5/27$421
Fri 10/186:15 amYKF - SFO
2 stops11h 18mWestJet
Thu 10/2412:50 pmSFO - YKF
1 stop9h 08mWestJet
Deal found 5/27$433
Mon 8/126:20 pmYKF - SFO
1 stop20h 40mWestJet
Mon 8/1912:50 pmSFO - YKF
1 stop9h 02mWestJet
Deal found 5/27$439
Mon 7/156:20 pmYKF - SFO
1 stop25h 53mWestJet
Mon 7/2912:50 pmSFO - YKF
1 stop9h 02mWestJet
Deal found 5/26$441
Sun 9/16:15 amYKF - SFO
1 stop18h 05mWestJet
Sun 9/812:50 pmSFO - YKF
1 stop9h 02mWestJet
Deal found 5/27$447

Kitchener-Waterloo to San Francisco flights leaving soon

Find last-minute flight options from Kitchener-Waterloo to San Francisco for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,740,132 searches. Data last updated May 28, 2024.
Wed 6/56:15 amYKF - SFO
1 stop8h 47mWestJet
Tue 6/116:05 pmSFO - YKF
1 stop28h 05mWestJet
Deal found 5/27$872
Wed 6/56:15 amYKF - SFO
1 stop8h 47mWestJet
Sat 6/1512:50 pmSFO - YKF
1 stop9h 02mWestJet
Deal found 5/27$969
Wed 6/56:15 amYKF - SFO
2 stops11h 19mWestJet
Sat 6/1512:50 pmSFO - YKF
1 stop9h 02mWestJet
Deal found 5/27$1,205
Wed 6/56:15 amYKF - SFO
1 stop8h 47mWestJet
Wed 6/1212:50 pmSFO - YKF
1 stop9h 20mWestJet
Deal found 5/27$1,226
Wed 6/56:15 amYKF - SFO
2 stops11h 19mWestJet
Wed 6/1212:50 pmSFO - YKF
1 stop9h 20mWestJet
Deal found 5/27$1,282
Wed 6/56:15 amYKF - SFO
2 stops11h 19mWestJet
Tue 6/1112:50 pmSFO - YKF
1 stop9h 20mWestJet
Deal found 5/27$1,285
Thu 6/66:15 amYKF - SFO
1 stop8h 47mWestJet
Mon 6/106:05 pmSFO - YKF
1 stop28h 05mWestJet
Deal found 5/27$1,403
Tue 6/46:15 amYKF - SFO
2 stops11h 19mWestJet
Tue 6/1112:50 pmSFO - YKF
1 stop9h 20mWestJet
Deal found 5/27$1,530
Fri 6/76:15 amYKF - SFO
1 stop8h 47mWestJet
Wed 6/1212:50 pmSFO - YKF
1 stop9h 20mWestJet
Deal found 5/27$1,538

One-way flights to San Francisco from Kitchener-Waterloo

Search for one-way flight options from Kitchener-Waterloo to San Francisco. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,740,132 searches. Data last updated May 28, 2024.
Wed 9/189:15 pmYKF - SFO
1 stop15h 15mFlair Airlines
Deal found 5/27$155
Tue 6/256:15 amYKF - SFO
2 stops16h 13mMultiple Airlines
Deal found 5/27$178
Wed 6/126:15 amYKF - SFO
1 stop8h 47mWestJet
Deal found 5/27$198
Wed 9/189:15 pmYKF - SFO
2 stops23h 03mMultiple Airlines
Deal found 5/27$202
Mon 6/106:15 amYKF - SFO
1 stop8h 47mWestJet
Deal found 5/27$203
Tue 6/116:15 amYKF - SFO
2 stops11h 19mWestJet
Deal found 5/27$208
Sun 8/256:15 amYKF - SFO
2 stops11h 18mWestJet
Deal found 5/28$213
Wed 8/286:15 amYKF - SFO
2 stops11h 18mWestJet
Deal found 5/27$216
Sun 8/256:15 amYKF - SFO
1 stop8h 45mWestJet
Deal found 5/28$217

Find flights from Kitchener-Waterloo to San Francisco within your budget

Customize your flight search to find flights from Kitchener-Waterloo to San Francisco that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,740,132 searches. Data last updated May 28, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$411 - $447

Route

Depart

Return

Price

Toronto Kitchener-WaterlooSan Francisco

YKF - SFO

YKFSFO

Toronto Kitchener-Waterloo

Tue 8/13

1 stop8h 45m

San Francisco

Tue 8/20

1 stop9h 02m

$411

Toronto Kitchener-WaterlooSan Francisco

YKF - SFO

YKFSFO

Toronto Kitchener-Waterloo

Thu 7/18

1 stop8h 45m

San Francisco

Tue 7/23

1 stop9h 02m

$412

Toronto Kitchener-WaterlooSan Francisco

YKF - SFO

YKFSFO

Toronto Kitchener-Waterloo

Tue 8/13

1 stop8h 45m

San Francisco

Tue 8/20

1 stop9h 02m

$413

Toronto Kitchener-WaterlooSan Francisco

YKF - SFO

YKFSFO

Toronto Kitchener-Waterloo

Fri 7/12

2 stops11h 18m

San Francisco

Mon 7/15

1 stop9h 02m

$415

Toronto Kitchener-WaterlooSan Francisco

YKF - SFO

YKFSFO

Toronto Kitchener-Waterloo

Tue 9/10

1 stop8h 45m

San Francisco

Thu 9/19

1 stop9h 08m

$421

Toronto Kitchener-WaterlooSan Francisco

YKF - SFO

YKFSFO

Toronto Kitchener-Waterloo

Fri 10/18

2 stops11h 18m

San Francisco

Thu 10/24

1 stop9h 08m

$433

Toronto Kitchener-WaterlooSan Francisco

YKF - SFO

YKFSFO

Toronto Kitchener-Waterloo

Mon 8/12

1 stop20h 40m

San Francisco

Mon 8/19

1 stop9h 02m

$439

Toronto Kitchener-WaterlooSan Francisco

YKF - SFO

YKFSFO

Toronto Kitchener-Waterloo

Mon 7/15

1 stop25h 53m

San Francisco

Mon 7/29

1 stop9h 02m

$441

Toronto Kitchener-WaterlooSan Francisco

YKF - SFO

YKFSFO

Toronto Kitchener-Waterloo

Sun 9/1

1 stop18h 05m

San Francisco

Sun 9/8

1 stop9h 02m

$447

Flights are sorted by cheapest first

Deals found on 5/27

When is the cheapest time to fly from Toronto Kitchener-Waterloo Airport to San Francisco?

Use this chart to determine the cheapest time to fly round-trip from Kitchener-Waterloo to San Francisco. Price data was last updated on May 19, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Toronto Kitchener-Waterloo Airport to San Francisco flight should consider departing on Friday mornings when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Best time to book a flight from Kitchener-Waterloo to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Kitchener-Waterloo with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Temperature and rainfall in San Francisco by month

Plan your trip to San Francisco by taking into account the average temperature and rainfall totals by month.

SFO

Temperature

51.8 - 62.6 °F

Reviews of airlines servicing San Francisco

Get insights into the airlines that provide service to San Francisco. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Francisco. Reviews last updated May 28, 2024.
WestJet
7.5
Good
2,871 reviews
Check prices

Comfort

7.3

Overall

7.5

Food

6.4

Boarding

7.7

Crew

8.1

Entertainment

6.4

Reviews

1 / 10

It’s a discount flight so you have to expect to be crammed in. Then there is the food strike at a supplier we were all warned of and they were good with snacks. The attendants were great. I’ll fly them a hand I recommend them, for what they are.

WestJet
7.5
Good
2,871 reviews
WestJet
7.5
Good
2,871 reviews
Check prices

Comfort

7.3

Overall

7.5

Food

6.4

Boarding

7.7

Crew

8.1

Entertainment

6.4

Reviews

1 / 10

It’s a discount flight so you have to expect to be crammed in. Then there is the food strike at a supplier we were all warned of and they were good with snacks. The attendants were great. I’ll fly them a hand I recommend them, for what they are.

Air Canada
7.0
Good
6,988 reviews
WestJet
7.5
Good
2,871 reviews
Check prices

Comfort

7.3

Overall

7.5

Food

6.4

Boarding

7.7

Crew

8.1

Entertainment

6.4

Reviews

1 / 10

It’s a discount flight so you have to expect to be crammed in. Then there is the food strike at a supplier we were all warned of and they were good with snacks. The attendants were great. I’ll fly them a hand I recommend them, for what they are.

Flair Airlines
6.1
Okay
204 reviews
WestJet
7.5
Good
2,871 reviews
Check prices

Comfort

7.3

Overall

7.5

Food

6.4

Boarding

7.7

Crew

8.1

Entertainment

6.4

Reviews

1 / 10

It’s a discount flight so you have to expect to be crammed in. Then there is the food strike at a supplier we were all warned of and they were good with snacks. The attendants were great. I’ll fly them a hand I recommend them, for what they are.

Related info for your journey

Find useful and relevant information for your journey from Kitchener-Waterloo to San Francisco. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to San Francisco from Toronto Kitchener-Waterloo?

    Most people fly into San Francisco (SFO) if they book a flight to San Francisco from Toronto Kitchener-Waterloo. On average, San Francisco has 0 inbound flights from Toronto Kitchener-Waterloo per day from 0 airlines. San Francisco is conveniently located just 11.8 mi from San Francisco’s city center.

  • Can I find flights from Toronto Kitchener-Waterloo Airport to San Francisco for under $500 on Cheapflights?

    Yes, there are multiple flights from Toronto Kitchener-Waterloo Airport to San Francisco for under $500. The cheapest flight booked recently is on WestJet for just $411, but on average you can expect to pay $452.

  • Are there last-minute flights available from Toronto Kitchener-Waterloo Airport to San Francisco for under $900?

    There are currently 15+ open flights from Toronto Kitchener-Waterloo Airport to San Francisco within the next 7 days for less than $900.

  • What is the cheapest airline to fly from Toronto Kitchener-Waterloo Airport to San Francisco round-trip?

    According to our current data, WestJet ($411), offers the cheapest pricing from Toronto Kitchener-Waterloo Airport to San Francisco. WestJet is priced at 21% lower than the current average price of a flight leaving 3 months from now.

  • What does YKF to SFO mean?

    YKF stands for Toronto Kitchener-Waterloo Airport, while SFO stands for San Francisco Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry.

  • Can I find deals for flights from Kitchener-Waterloo to San Francisco that include extra baggage allowance?

    The amount of baggage you can bring on your Kitchener-Waterloo to San Francisco flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Kitchener-Waterloo to San Francisco with specific airlines?

    Yes, Cheapflights allows you to browse and filter Kitchener-Waterloo to San Francisco flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Kitchener-Waterloo to San Francisco that include hotel bookings?

    Yes. In addition to deals on Kitchener-Waterloo to San Francisco flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Kitchener-Waterloo to San Francisco?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Kitchener-Waterloo to San Francisco.

  • Can I find deals for business class flights from Kitchener-Waterloo to San Francisco?

    Yes. Cheapflights offers flight deals from Kitchener-Waterloo to San Francisco by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Kitchener-Waterloo to San Francisco that allow pets onboard?

    Many airlines flying from Kitchener-Waterloo to San Francisco offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Kitchener-Waterloo to San Francisco?

    Yes, you can often find last-minute deals on Kitchener-Waterloo to San Francisco flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Toronto Kitchener-Waterloo Airport to San Francisco flight deals updated?

    The Toronto Kitchener-Waterloo Airport to San Francisco flight deals you see on this page were last updated on 5/27.

  • When is the best time to book a flight from Toronto Kitchener-Waterloo Airport to San Francisco?

    Currently, September is the cheapest month in which you can book a flight from Toronto Kitchener-Waterloo Airport to San Francisco (average of $268). Flying from Toronto Kitchener-Waterloo Airport to San Francisco in June is currently the most expensive (average of $385). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Search flights from Kitchener-Waterloo to San Francisco by cabin class

Find flights from Kitchener-Waterloo to San Francisco, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
Business Class
Prem Econ Class
Economy Class

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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Kitchener-Waterloo to San Francisco?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Kitchener-Waterloo to San Francisco. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Kitchener-Waterloo to San Francisco?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to San Francisco from Kitchener-Waterloo.

Can Cheapflights find flights from Kitchener-Waterloo to San Francisco with no change fees?

Certainly. Search results for flights to San Francisco from Kitchener-Waterloo shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Kitchener-Waterloo to San Francisco become cheaper?

Not ready to book yet? You can track prices for flights from Kitchener-Waterloo to San Francisco on Cheapflights with our Price Alert feature and get notified when better prices are available.

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