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Cheap flights from Toronto Region of Waterloo Intl Airport to San Francisco from C$ 229

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 28/5. Fares are subject to change and may not be available on all flights or dates of travel.
YKF — SFO
4 May — 11 May1
1 adult

Cheap flight deals from Region of Waterloo Intl to San Francisco

Discover tips and strategies to find the most affordable flight options for your journey from Region of Waterloo Intl (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 29 April 2025.

Round-trip from

C$ 362

One-way from

C$ 229

Popular in

December

Cheapest in

February

Average price

C$ 421
WestJet
  • WestJet
  • 11/5-31/8
  • 2 total stops
  • 23h 21m total
  • Toronto to San Francisco
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WestJet
  • WestJet
  • 28/5
  • 1 total stop
  • 18h 25m total
  • Toronto to San Francisco
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Highest demand for flights based on searches. 10% potential increase in price (C$ 89 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease (C$ 25 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from Region of Waterloo Intl to San Francisco

Cheapest flights from Region of Waterloo Intl to San Francisco
Explore the most affordable flight options available from Region of Waterloo Intl to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 April 2025.

Fri 29/86:00 a.m.YKF - SFO
2 stops10h 59mWestJet
Mon 8/912:50 p.m.SFO - YKF
1 stop8h 55mWestJet
Deal found 28/4C$ 359
Fri 23/56:00 a.m.YKF - SFO
1 stop9h 05mMultiple Airlines
Sun 25/510:15 a.m.SFO - YKF
2 stops40h 15mMultiple Airlines
Deal found 28/4C$ 423
Fri 23/58:25 p.m.YKF - SFO
1 stop16h 05mFlair Airlines
Tue 3/610:15 a.m.SFO - YKF
2 stops40h 15mFlair Airlines
Deal found 28/4C$ 442

Cheapflights Fare Finder

Customize your flight search to find flights from Region of Waterloo Intl 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 629,999 searches. Data last updated 29 April 2025.
Use the filters below to find and compare flights from Toronto Region of Waterloo Intl Airport to San Francisco that are best for you.

Fly from

Region of Waterloo Intl

Fly to

San Francisco

Route

Depart

Return

Price

TorontoSan Francisco

YKF - SFO

YKFSFO

Toronto Region of Waterloo Intl

Fri 29/8

6:00 a.m.-1:59 p.m.

2 stops10h 59m

San Francisco

Mon 8/9

12:50 p.m.-12:45 a.m.

1 stop8h 55m

C$ 359

TorontoSan Francisco

YKF - SFO

YKFSFO

Toronto Region of Waterloo Intl

Fri 23/5

6:00 a.m.-12:05 p.m.

1 stop9h 05m

San Francisco

Sun 25/5

10:15 a.m.-5:30 a.m.

2 stops40h 15m

C$ 423

TorontoSan Francisco

YKF - SFO

YKFSFO

Toronto Region of Waterloo Intl

Fri 23/5

8:25 p.m.-9:30 a.m.

1 stop16h 05m

San Francisco

Tue 3/6

10:15 a.m.-5:30 a.m.

2 stops40h 15m

C$ 442

TorontoSan Francisco

YKF - SFO

YKFSFO

Toronto Region of Waterloo Intl

Thu 31/7

7:45 p.m.-1:59 p.m.

2 stops21h 14m

C$ 229

TorontoSan Francisco

YKF - SFO

YKFSFO

Toronto Region of Waterloo Intl

Fri 30/5

9:25 a.m.-12:05 p.m.

2 stops29h 40m

C$ 259

TorontoSan Francisco

YKF - SFO

YKFSFO

Toronto Region of Waterloo Intl

Mon 5/5

8:25 p.m.-9:30 a.m.

1 stop16h 05m

C$ 270

Flights are sorted by cheapest round-trip flights first.

Deals found on 28/4

Best time to book a flight from Region of Waterloo Intl to San Francisco

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

What is the cheapest month to book a flight from Toronto Region of Waterloo Intl Airport to San Francisco?

Currently, January is the cheapest month in which you can book a flight from Toronto Region of Waterloo Intl Airport to San Francisco (average of C$ 276). Flying from Toronto Region of Waterloo Intl Airport to San Francisco in June is currently the most expensive (average of C$ 379). 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.

Rainfall in San Francisco by month

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

In terms of precipitation, rainfall in San Francisco ranges from 0.0 - 112.0 mm per month. January is typically the wettest month, when rainfall can reach 112.0 mm. July is typically the driest time to visit San Francisco when rainfall is around 0.0 mm.

Temperature in San Francisco by month

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

If weather is an important factor for your trip to San Francisco, use this chart to help with planning. For those seeking warmer temperatures, September is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 11.0 C).

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 29 April 2025.
Get a feel of what it's like to fly with WestJet and Flair Airlines from Toronto to San Francisco by reading reviews from past customers. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
WestJet
7.2
Good
2,823 reviews
Check prices

Boarding

7.4

Comfort

7.1

Food

6.2

Entertainment

6.1

Crew

7.9

Overall

7.2

Reviews

1 / 20
6.0
Good

Deb,Jan 2025

YYZ - YYC

Boarding went smoothly, you didn't accept debit card for food on flight
WestJet
7.2
Good
2,823 reviews
WestJet
7.2
Good
2,823 reviews
Check prices

Boarding

7.4

Comfort

7.1

Food

6.2

Entertainment

6.1

Crew

7.9

Overall

7.2

Reviews

1 / 20
6.0
Good

Deb,Jan 2025

YYZ - YYC

Boarding went smoothly, you didn't accept debit card for food on flight
Flair Airlines
6.0
Okay
239 reviews
WestJet
7.2
Good
2,823 reviews
Check prices

Boarding

7.4

Comfort

7.1

Food

6.2

Entertainment

6.1

Crew

7.9

Overall

7.2

Reviews

1 / 20
6.0
Good

Deb,Jan 2025

YYZ - YYC

Boarding went smoothly, you didn't accept debit card for food on flight

Related info for your journey

Find useful and relevant information for your journey from Region of Waterloo Intl 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 Region of Waterloo Intl?

    San Francisco (SFO), located 19.0 km from the city centre, is the airport you fly into when you book flights from Toronto Region of Waterloo Intl to San Francisco. 2 airlines have flights to San Francisco from Toronto Region of Waterloo Intl on a regular basis. Booking flights from Toronto Region of Waterloo Intl to San Francisco should not be difficult; the airport handles an average of 0 inbound flights from Toronto Region of Waterloo Intl per day.

  • What are the cheapest airlines flying from Toronto Region of Waterloo Intl Airport to San Francisco round-trip?

    Cheapflights users have booked flights from Toronto Region of Waterloo Intl Airport to San Francisco round-trip from C$ 362. Another airline that can offer you cheap pricing is Flair Airlines. WestJet is priced at 31% lower than the current average price of a flight leaving 3 months from now.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Region of Waterloo Intl 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.

  • What is the cheapest month to book a flight from Toronto Region of Waterloo Intl Airport to San Francisco?

    Currently, January is the cheapest month in which you can book a flight from Toronto Region of Waterloo Intl Airport to San Francisco (average of C$ 276). Flying from Toronto Region of Waterloo Intl Airport to San Francisco in June is currently the most expensive (average of C$ 379). 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

Travelling to a place near Toronto Region of Waterloo Intl Airport?

Book flights to Toronto Region of Waterloo Intl Airport if you plan to visit one of these locations
Richmond
San Ramon
Newark
Alameda
Redwood City
Burlingame
San Bruno
South San Francisco
Scotts Valley
Novato
Belmont
Millbrae
Santa Clara
Vallejo

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Alternative routes for Region of Waterloo Intl to San Francisco

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Region of Waterloo Intl to San Francisco

Discover the top 2 airlines that operate flights from Region of Waterloo Intl to San Francisco. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 29 April 2025.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapestC$ 288AverageC$ 552FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Air CanadaCheapestC$ 337AverageC$ 655FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

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 Region of Waterloo Intl to San Francisco?

Deals for Region of Waterloo Intl to San Francisco flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Region of Waterloo Intl to San Francisco?

Millions of users choose and trust Cheapflights to book the best flight deals from Region of Waterloo Intl to San Francisco for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Region of Waterloo Intl to San Francisco with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Region of Waterloo Intl to San Francisco, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Region of Waterloo Intl to San Francisco become cheaper?

Of course! You can now track prices for flights from Region of Waterloo Intl to San Francisco and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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