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Region of Waterloo Intl

$170+ Cheap flights from San Francisco (SFO) to Region of Waterloo Intl (YKF)

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 9/23. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — YKF
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from San Francisco to Region of Waterloo Intl

Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to Region of Waterloo Intl (YKF). 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 September 11, 2025.

Round-trip from

$286
(Mytrip)

One-way from

$170
(Mytrip)

Popular in

December

Cheapest in

April

Average price

$451
From San Francisco to Toronto Region of Waterloo Intl
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One-way flight from San Francisco to Toronto Region of Waterloo Intl
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Highest demand for flights based on searches. 11% potential increase in price ($58 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($17 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from San Francisco to Region of Waterloo Intl

Cheapest flights from San Francisco to Region of Waterloo Intl
Explore the most affordable flight options available from San Francisco to Region of Waterloo Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This Trip.com deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1012:50 pmSFO - YKF
1 stop8h 55mWestJet
Tue 10/146:00 amYKF - SFO
1 stop8h 54mWestJet
Deal found 9/9$271
This Mytrip deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/1610:15 amSFO - YKF
2 stops16h 15mMultiple Airlines
Mon 10/206:00 amYKF - SFO
1 stop18h 24mMultiple Airlines
Deal found 9/9$278
This oojo deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/2412:50 pmSFO - YKF
1 stop8h 55mWestJet
Tue 10/76:00 amYKF - SFO
1 stop8h 54mWestJet
Deal found 9/8$280
This Mytrip deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/237:30 amSFO - YKF
2 stops19h 00mMultiple Airlines
Wed 10/16:30 amYKF - SFO
2 stops17h 54mMultiple Airlines
Deal found 9/9$283
This Trip.com deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2612:50 pmSFO - YKF
1 stop8h 55mWestJet
Tue 9/306:00 amYKF - SFO
1 stop8h 54mWestJet
Deal found 9/9$285
This Mytrip deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/77:30 amSFO - YKF
2 stops19h 00mMultiple Airlines
Fri 10/176:15 amYKF - SFO
2 stops18h 09mMultiple Airlines
Deal found 9/11$286
This Trip.com deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/912:50 pmSFO - YKF
1 stop8h 55mWestJet
Thu 10/166:00 amYKF - SFO
1 stop18h 24mWestJet
Deal found 9/9$287
This Mytrip deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/307:30 amSFO - YKF
2 stops19h 00mMultiple Airlines
Sun 10/56:15 amYKF - SFO
2 stops34h 42mMultiple Airlines
Deal found 9/10$294
This Mytrip deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/97:30 amSFO - YKF
2 stops19h 00mMultiple Airlines
Thu 10/166:00 amYKF - SFO
1 stop18h 24mMultiple Airlines
Deal found 9/9$295
This FlightHub deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/312:50 pmSFO - YKF
1 stop8h 55mWestJet
Tue 10/76:00 amYKF - SFO
1 stop8h 54mWestJet
Deal found 9/9$300
This Mytrip deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1410:15 amSFO - YKF
2 stops16h 15mMultiple Airlines
Mon 10/206:00 amYKF - SFO
1 stop18h 24mMultiple Airlines
Deal found 9/10$303

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Francisco to Region of Waterloo Intl 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 2,558,603 searches. Data last updated September 11, 2025.
Use the filters below to find and compare flights from San Francisco to Toronto Region of Waterloo Intl Airport that are best for you.

Fly from

San Francisco

Fly to

Region of Waterloo Intl

Route

Depart

Return

Price

San FranciscoToronto

SFO - YKF

SFOYKF

San Francisco

Fri 9/26

2:45 pm-5:30 am

2 stops35h 45m

Toronto Region of Waterloo Intl

Wed 10/1

6:30 am-9:24 pm

2 stops17h 54m

$307

San FranciscoToronto

SFO - YKF

SFOYKF

San Francisco

Tue 9/30

7:30 am-5:30 am

2 stops19h 00m

Toronto Region of Waterloo Intl

Sun 10/5

6:00 am-11:54 am

1 stop8h 54m

$314

San FranciscoToronto

SFO - YKF

SFOYKF

San Francisco

Mon 10/13

2:45 pm-5:30 am

2 stops35h 45m

Toronto Region of Waterloo Intl

Fri 10/17

6:00 am-9:24 pm

1 stop18h 24m

$314

San FranciscoToronto

SFO - YKF

SFOYKF

San Francisco

Sun 10/26

10:15 am-5:28 am

3 stops16h 13m

Toronto Region of Waterloo Intl

Sat 11/1

6:20 am-10:30 am

2 stops31h 10m

$314

San FranciscoToronto

SFO - YKF

SFOYKF

San Francisco

Tue 10/14

10:15 am-5:30 am

2 stops16h 15m

Toronto Region of Waterloo Intl

Mon 10/20

6:00 am-9:30 am

2 stops30h 30m

$318

San FranciscoToronto

SFO - YKF

SFOYKF

San Francisco

Thu 10/2

12:50 pm-5:30 am

2 stops13h 40m

Toronto Region of Waterloo Intl

Sun 10/5

6:15 am-1:57 pm

2 stops34h 42m

$319

San FranciscoToronto

SFO - YKF

SFOYKF

San Francisco

Mon 9/29

2:45 pm-5:30 am

3 stops35h 45m

Toronto Region of Waterloo Intl

Fri 10/3

6:15 am-9:24 pm

2 stops18h 09m

$325

San FranciscoToronto

SFO - YKF

SFOYKF

San Francisco

Thu 10/23

12:50 pm-12:45 am

1 stop8h 55m

Toronto Region of Waterloo Intl

Thu 10/30

6:20 am-12:12 pm

1 stop8h 52m

$326

San FranciscoToronto

SFO - YKF

SFOYKF

San Francisco

Wed 10/22

12:50 pm-12:45 am

1 stop8h 55m

Toronto Region of Waterloo Intl

Sat 10/25

6:00 am-11:54 am

1 stop8h 54m

$328

San FranciscoToronto

SFO - YKF

SFOYKF

San Francisco

Sun 11/16

1:00 pm-5:28 am

1 stop13h 28m

Toronto Region of Waterloo Intl

Tue 11/18

6:20 am-12:12 pm

1 stop8h 52m

$333

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/8

Showing 1-10 of 22 results
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Best time to book a flight from San Francisco to Region of Waterloo Intl

Have a flexible travel schedule? Discover the best time to fly to Region of Waterloo Intl from San Francisco 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.

Cheapflights Insights

Everything you need to know about your flight from San Francisco to Toronto Region of Waterloo Intl Airport

What is the cheapest time of day to fly from SFO to YKF?

Find hourly flight availability from San Francisco to Region of Waterloo Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

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

Related info for your journey

Find useful and relevant information for your journey from San Francisco to Region of Waterloo Intl. 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 from for flights from San Francisco to Toronto Region of Waterloo Intl?

    For a flight from San Francisco to Toronto Region of Waterloo Intl, you will be flying from San Francisco. San Francisco (SFO) is just 11.8 mi from the center of the city. San Francisco is the only San Francisco airport and it handles 0 outbound flights to Toronto Region of Waterloo Intl per day. 0 airlines have flights to Toronto Region of Waterloo Intl from San Francisco on a regular basis.

  • How long is the flight from San Francisco to Toronto Region of Waterloo Intl Airport?

    There are many flights that can get you from San Francisco to Toronto Region of Waterloo Intl Airport in 16h 15m. Fly via Flair Airlines to get the fastest option. There are 2216 mi between San Francisco and Toronto Region of Waterloo Intl Airport.

  • Can I find deals for flights from San Francisco to Region of Waterloo Intl that include hotel bookings?

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

  • How can I find direct flights from San Francisco to Region of Waterloo Intl?

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

  • Can I find deals for business class flights from San Francisco to Region of Waterloo Intl?

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

See more FAQs

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