What is the cheapest day to fly from San Francisco to Toronto Region of Waterloo Intl Airport?

Travelers seeking maximum savings on their San Francisco to Toronto Region of Waterloo Intl Airport flight should consider departing on Friday afternoons when fares are most often at their lowest. Friday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Toronto Region of Waterloo Intl Airport ranges from 2.0 - 3.3 inches per month. June is typically the wettest month, when rainfall can reach 3.3 in. February is typically the driest time to visit Toronto Region of Waterloo Intl Airport when rainfall is around 2.0 in.

If weather is an important factor for your trip to Toronto Region of Waterloo Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 21.2 F).

How far in advance should I book a flight from San Francisco to Toronto Region of Waterloo Intl Airport?

To save on the cost of your flight from San Francisco to Toronto Region of Waterloo Intl Airport, book at least 11 days before your planned departure. Booking around this time can save you about 48% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $303 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $476.

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

April is one of the best times of the year to fly to Toronto Region of Waterloo Intl Airport from San Francisco. Prices for April average $434 per person but you can even find prices for as low as $155. The most expensive prices can be found in the month of December. Opting for a April flight can save you 39% on your journey compared to booking in December

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 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.

$150+ Flights from San Francisco to Toronto Region of Waterloo Intl Airport

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Cheap flight deals from San Francisco to Region of Waterloo Intl

Round-trip from	$301 (Trip.com)
One-way from	$150 (Mytrip)
Popular in	December
Cheapest in	April
Average price	$474

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. 12% potential increase in price ($59 potential increase over avg. RT price).

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Cheapest flight prices on average. 3% potential price decrease ($16 potential savings vs. average RT price).

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Average for round-trip flights in July 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 July 29, 2025.

Thu 9/1810:15 amSFO - YKF

2 stops16h 15mMultiple Airlines

Mon 9/226:00 amYKF - SFO

1 stop14h 14mMultiple Airlines

Deal found 7/27

$303

Mon 9/2912:50 pmSFO - YKF

1 stop8h 55mWestJet

Mon 10/136:00 amYKF - SFO

1 stop8h 54mWestJet

Deal found 7/28

$322

Thu 8/1410:15 amSFO - YKF

1 stop17h 55mFlair Airlines

Sun 8/178:25 pmYKF - SFO

1 stop16h 05mFlair Airlines

Deal found 7/27

$332

Best flights from San Francisco to Region of Waterloo Intl
Discover carefully curated flight deals from San Francisco to Region of Waterloo Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 29, 2025.

Tue 8/1912:50 pmSFO - YKF

1 stop8h 56mWestJet

Thu 8/286:00 amYKF - SFO

1 stop8h 56mWestJet

Deal found 7/29

$301

Thu 9/1810:15 amSFO - YKF

2 stops16h 15mMultiple Airlines

Mon 9/226:00 amYKF - SFO

1 stop14h 14mMultiple Airlines

Deal found 7/27

$303

Thu 8/1410:15 amSFO - YKF

1 stop17h 55mFlair Airlines

Sun 8/178:25 pmYKF - SFO

1 stop16h 05mFlair Airlines

Deal found 7/27

$332

Last-minute flights from San Francisco to Region of Waterloo Intl
Discover last-minute flight deals from San Francisco to Region of Waterloo Intl. Data last updated July 29, 2025 and is based on user searches.

Tue 8/57:30 amSFO - YKF

1 stop8h 26mWestJet

Mon 8/116:00 amYKF - SFO

1 stop8h 56mWestJet

Deal found 7/28

$633

Wed 8/610:15 amSFO - YKF

1 stop17h 55mFlair Airlines

Wed 8/138:25 pmYKF - SFO

1 stop16h 05mFlair Airlines

Deal found 7/27

$462

Wed 8/610:15 amSFO - YKF

2 stops11h 31mMultiple Airlines

Wed 8/138:25 pmYKF - SFO

1 stop16h 05mMultiple Airlines

Deal found 7/27

$523

Thu 8/1410:15 amSFO - YKF

1 stop17h 55mFlair Airlines

Sun 8/178:25 pmYKF - SFO

1 stop16h 05mFlair Airlines

Deal found 7/27

$332

Tue 8/1912:50 pmSFO - YKF

1 stop8h 56mWestJet

Thu 8/286:00 amYKF - SFO

1 stop8h 56mWestJet

Deal found 7/27

$334

Fri 8/227:30 amSFO - YKF

2 stops19h 00mMultiple Airlines

Mon 8/256:00 amYKF - SFO

1 stop8h 56mMultiple Airlines

Deal found 7/27

$335

One-way flights from San Francisco to Region of Waterloo Intl
Search for one-way flight options from San Francisco to Region of Waterloo Intl. Find affordable one-way fares based on user searches. Data last updated July 29, 2025.

Sat 10/410:15 amSFO - YKF

2 stops16h 15mFlair Airlines

Deal found 7/28

$150

Thu 10/212:50 pmSFO - YKF

1 stop8h 55mWestJet

Deal found 7/26

$151

Thu 9/1110:15 amSFO - YKF

3 stops16h 15mMultiple Airlines

Deal found 7/28

$158

Cheapflights Fare Finder

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

Fly to

Route

Depart

Return

Price

San FranciscoToronto

SFO - YKF

SFOYKF

San Francisco

Tue 8/19

12:50 pm-12:46 am

1 stop8h 56m

Toronto Region of Waterloo Intl

Thu 8/28

6:00 am-11:56 am

1 stop8h 56m

$301

San FranciscoToronto

SFO - YKF

SFOYKF

San Francisco

Thu 9/18

10:15 am-5:30 am

2 stops16h 15m

Toronto Region of Waterloo Intl

Mon 9/22

6:00 am-5:14 pm

1 stop14h 14m

$303

San FranciscoToronto

SFO - YKF

SFOYKF

San Francisco

Thu 8/14

10:15 am-7:10 am

1 stop17h 55m

Toronto Region of Waterloo Intl

Sun 8/17

8:25 pm-9:30 am

1 stop16h 05m

$332

San FranciscoToronto

SFO - YKF

SFOYKF

San Francisco

Sat 10/4

10:15 am-5:30 am

2 stops16h 15m

$150

San FranciscoToronto

SFO - YKF

SFOYKF

San Francisco

Thu 10/2

12:50 pm-12:45 am

1 stop8h 55m

$151

San FranciscoToronto

SFO - YKF

SFOYKF

San Francisco

Thu 9/11

10:15 am-5:30 am

3 stops16h 15m

$158

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

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?

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.

Reviews of airlines servicing Region of Waterloo Intl

See what other customers who have flown with WestJet and Flair Airlines from San Francisco to Toronto Region of Waterloo Intl Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

WestJet

7.2

Good

2,972 reviews

Reviews

1 / 20

10.0

Excellent

Sugith,Jan 2025

CUN - YYZ

On time departure. Good service on board. Comfort Plus seating was comfortable.

WestJet

7.2

Good

2,972 reviews

WestJet

7.2

Good

2,972 reviews

Reviews

1 / 20

10.0

Excellent

Sugith,Jan 2025

CUN - YYZ

On time departure. Good service on board. Comfort Plus seating was comfortable.

Flair Airlines

6.0

Okay

247 reviews

WestJet

7.2

Good

2,972 reviews

Reviews

1 / 20

10.0

Excellent

Sugith,Jan 2025

CUN - YYZ

On time departure. Good service on board. Comfort Plus seating was comfortable.

Related info for your journey

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.
What are the cheapest airlines flying from San Francisco to Toronto Region of Waterloo Intl Airport round-trip?
WestJet, at $301, was found to be the cheapest airline from San Francisco to Toronto Region of Waterloo Intl Airport. An alternate airline flying to your destination would be Flair Airlines.
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.

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$150+ 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 10/4. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from San Francisco to Region of Waterloo Intl with Cheapflights

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3. Compare prices and book

Cheap flight deals from San Francisco to Region of Waterloo Intl

Round-trip from

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Cheapest in

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Find flight deals from San Francisco to Region of Waterloo Intl

Cheapest flights from San Francisco to Region of Waterloo IntlExplore 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 July 29, 2025.

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 July 29, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from San Francisco to Toronto Region of Waterloo Intl Airport that are best for you.

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.

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 July 29, 2025.

Reviews of airlines servicing Region of Waterloo Intl

See what other customers who have flown with WestJet and Flair Airlines from San Francisco to Toronto Region of Waterloo Intl Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

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?

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

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

How can I 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?

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Alternative routes for San Francisco to Region of Waterloo Intl

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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 July 29, 2025.