In terms of precipitation, rainfall in San Francisco Bay Area 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 Bay Area when rainfall is around 0.0 mm.

If weather is an important factor for your trip to San Francisco Bay Area, 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).

What are the most popular routes from Toronto Region of Waterloo Intl Airport to San Francisco Bay Area?

The most popular flight routes from Toronto Region of Waterloo Intl Airport to San Francisco Bay Area are Toronto Region of Waterloo Intl - San Francisco, Toronto Region of Waterloo Intl - Oakland and Toronto Region of Waterloo Intl - San Jose.

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

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Toronto Region of Waterloo Intl Airport to San Francisco Bay Area as you normally would.

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

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 Bay Area.

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

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

C$ 300+ Cheap Flights from Toronto Region of Waterloo Intl Airport to San Francisco Bay Area

Cheap flight deals from Region of Waterloo Intl to San Francisco Bay Area

Enter your travel dates to find the best prices.

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Cheapest flights from Region of Waterloo Intl to San Francisco Bay Area
Explore the most affordable flight options available from Region of Waterloo Intl to San Francisco Bay Area. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 August 2026.

Wed 16/98:40 p.m. -

1 stop18h 20m

Wed 23/96:00 a.m. -

1 stop10h 50m

Deal found 27/8C$ 432

Mon 21/98:40 p.m. -

1 stop18h 20m

Thu 24/96:00 a.m. -

1 stop10h 50m

Deal found 26/8C$ 434

Mon 21/98:40 p.m. -

1 stop18h 20m

Wed 23/96:00 a.m. -

1 stop10h 50m

Deal found 27/8C$ 435

Tue 15/98:40 p.m. -

1 stop28h 15m

Tue 29/96:00 a.m. -

1 stop10h 50m

Deal found 27/8C$ 439

Mon 21/98:40 p.m. -

1 stop18h 20m

Wed 30/96:00 a.m. -

1 stop10h 50m

Deal found 28/8C$ 444

Tue 15/98:40 p.m. -

1 stop28h 15m

Tue 22/96:00 a.m. -

1 stop10h 50m

Deal found 28/8C$ 445

Thu 10/98:40 p.m. -

1 stop18h 20m

Sun 27/96:00 a.m. -

1 stop10h 50m

Deal found 26/8C$ 460

Mon 14/98:40 p.m. -

1 stop28h 15m

Sat 19/96:00 a.m. -

1 stop10h 50m

Deal found 27/8C$ 469

Tue 15/98:40 p.m. -

1 stop28h 15m

Sat 19/96:00 a.m. -

1 stop10h 50m

Deal found 27/8C$ 477

Tue 8/98:40 p.m. -

1 stop23h 00m

Sat 3/106:00 a.m. -

1 stop10h 50m

Deal found 28/8C$ 478

Mon 28/98:40 p.m. -

1 stop28h 15m

Sat 3/106:00 a.m. -

1 stop10h 50m

Deal found 26/8C$ 485

Fri 2/108:40 p.m. -

1 stop18h 20m

Fri 9/106:00 a.m. -

1 stop10h 50m

Deal found 26/8C$ 488

Find flight deals from Region of Waterloo Intl to San Francisco Bay Area

Round-trip from	C$ 432
One-way from	C$ 300
Popular in	July
Cheapest in	November
Average price	C$ 672

WestJet
16/9-23/9
2 total stops
29h 10m total
Toronto to San Francisco Bay Area

Search Deals

WestJet
16/9
1 total stop
28h 15m total
Toronto to San Francisco Bay Area

Search Deals

Highest demand for flights based on searches. 11% potential increase in price (C$ 103 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease (C$ 14 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in August 2026

Search Deals

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

TorontoSan Francisco

YKF Toronto Region of Waterloo Intl - SFO San Francisco

YKFSFO

Toronto Region of Waterloo Intl

Tue 15/9

8:40 p.m.-9:55 p.m.

1 stop28h 15m

San Francisco

Tue 22/9

6:00 a.m.-7:50 p.m.

1 stop10h 50m

C$ 445

Quickest round-trip

TorontoSan Francisco

YKF Toronto Region of Waterloo Intl - SFO San Francisco

YKFSFO

Toronto Region of Waterloo Intl

Wed 16/9

8:40 p.m.-12:00 p.m.

1 stop18h 20m

San Francisco

Tue 22/9

6:00 a.m.-7:50 p.m.

1 stop10h 50m

C$ 445

TorontoSan Francisco

YKF Toronto Region of Waterloo Intl - SFO San Francisco

YKFSFO

Toronto Region of Waterloo Intl

Fri 2/10

8:40 p.m.-12:00 p.m.

1 stop18h 20m

San Francisco

Fri 9/10

6:00 a.m.-7:50 p.m.

1 stop10h 50m

C$ 488

TorontoSan Francisco

YKF Toronto Region of Waterloo Intl - SFO San Francisco

YKFSFO

Toronto Region of Waterloo Intl

Mon 5/10

8:40 p.m.-12:00 p.m.

1 stop18h 20m

San Francisco

Sat 10/10

1:00 p.m.-7:50 p.m.

1 stop27h 50m

C$ 527

TorontoSan Francisco

YKF Toronto Region of Waterloo Intl - SFO San Francisco

YKFSFO

Toronto Region of Waterloo Intl

Thu 1/10

8:40 p.m.-9:55 p.m.

1 stop28h 15m

San Francisco

Mon 12/10

6:00 a.m.-7:50 p.m.

1 stop10h 50m

C$ 549

TorontoSan Francisco

YKF Toronto Region of Waterloo Intl - SFO San Francisco

YKFSFO

Toronto Region of Waterloo Intl

Fri 2/10

8:40 p.m.-12:00 p.m.

1 stop18h 20m

San Francisco

Sun 4/10

6:00 a.m.-7:50 p.m.

1 stop10h 50m

C$ 599

TorontoSan Francisco

YKF Toronto Region of Waterloo Intl - SFO San Francisco

YKFSFO

Toronto Region of Waterloo Intl

Mon 14/9

8:40 p.m.-12:00 p.m.

1 stop18h 20m

San Francisco

Thu 17/9

6:00 a.m.-7:50 p.m.

1 stop10h 50m

C$ 631

TorontoSan Francisco

YKF Toronto Region of Waterloo Intl - SFO San Francisco

YKFSFO

Toronto Region of Waterloo Intl

Thu 15/10

6:05 a.m.-11:20 p.m.

3 stops20h 15m

San Francisco

Wed 21/10

4:30 p.m.-3:00 p.m.

2 stops19h 30m

C$ 635

TorontoSan Francisco

YKF Toronto Region of Waterloo Intl - SFO San Francisco

YKFSFO

Toronto Region of Waterloo Intl

Thu 1/10

6:05 a.m.-9:55 p.m.

1 stop18h 50m

San Francisco

Wed 7/10

7:30 p.m.-3:00 p.m.

2 stops16h 30m

C$ 635

TorontoSan Francisco

YKF Toronto Region of Waterloo Intl - SFO San Francisco

YKFSFO

Toronto Region of Waterloo Intl

Wed 23/9

8:40 p.m.-12:00 p.m.

1 stop18h 20m

San Francisco

Wed 30/9

6:00 a.m.-7:50 p.m.

1 stop10h 50m

C$ 642

Flights are sorted by cheapest round-trip flights first.

Deals found on 30/8

Showing 1-10 of 35 resultsSorted by cheapest first

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

Have a flexible travel schedule? Discover the best time to fly to San Francisco Bay Area from Region of Waterloo Intl with our price prediction graph.

YKF-SFO

YKF-SJC

YKF-OAK

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 Bay Area

YKF-zzXIH

YKF-SFO

YKF-SJC

YKF-OAK

No data available for this route at this time. Please check back soon.

Related info for your journey

How long is the flight from Toronto Region of Waterloo Intl Airport to San Francisco Bay Area?
A quick flight from Toronto Region of Waterloo Intl Airport to San Francisco Bay Area can take about 28h 15m. WestJet provides one of the quickest options available for as low as C$ 445. There are 3566 km between Toronto Region of Waterloo Intl Airport and San Francisco Bay Area.
What are the most popular routes from Toronto Region of Waterloo Intl Airport to San Francisco Bay Area?
The most popular flight routes from Toronto Region of Waterloo Intl Airport to San Francisco Bay Area are Toronto Region of Waterloo Intl - San Francisco, Toronto Region of Waterloo Intl - Oakland and Toronto Region of Waterloo Intl - San Jose.
Can I find deals for flights from Region of Waterloo Intl to San Francisco Bay Area that include hotel bookings?
Yes. In addition to deals on Region of Waterloo Intl to San Francisco Bay Area 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 Bay Area?
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 Bay Area.
Can I find deals for business class flights from Region of Waterloo Intl to San Francisco Bay Area?
Yes. Cheapflights offers flight deals from Region of Waterloo Intl to San Francisco Bay Area 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

Browse thousands of different options on Cheapflights for your next trip

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Cheap flights from Toronto Region of Waterloo Intl Airport to San Francisco Bay Area from C$ 300

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 16/9. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Region of Waterloo Intl to San Francisco Bay Area

Cheapest flights from Region of Waterloo Intl to San Francisco Bay AreaExplore the most affordable flight options available from Region of Waterloo Intl to San Francisco Bay Area. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 August 2026.

Explore the most affordable flight options available from Region of Waterloo Intl to San Francisco Bay Area. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 August 2026.

Best flights from Region of Waterloo Intl to San Francisco Bay AreaDiscover carefully curated flight deals from Region of Waterloo Intl to San Francisco Bay Area that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 30 August 2026.

Discover carefully curated flight deals from Region of Waterloo Intl to San Francisco Bay Area that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 30 August 2026.

Last-minute flights from Region of Waterloo Intl to San Francisco Bay AreaDiscover last-minute flight deals from Region of Waterloo Intl to San Francisco Bay Area. Data last updated 30 August 2026 and is based on user searches.

Discover last-minute flight deals from Region of Waterloo Intl to San Francisco Bay Area. Data last updated 30 August 2026 and is based on user searches.

One-way flights from Region of Waterloo Intl to San Francisco Bay AreaSearch for one-way flight options from Region of Waterloo Intl to San Francisco Bay Area. Find affordable one-way fares based on user searches. Data last updated 30 August 2026.

Search for one-way flight options from Region of Waterloo Intl to San Francisco Bay Area. Find affordable one-way fares based on user searches. Data last updated 30 August 2026.

Find flight deals from Region of Waterloo Intl to San Francisco Bay Area

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

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Cheapflights Insights

Related info for your journey

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

What are the most popular routes from Toronto Region of Waterloo Intl Airport to San Francisco Bay Area?

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

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

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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Region of Waterloo Intl to San Francisco Bay Area

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Complete your trip

Complete your trip to San Francisco Bay Area by adding a car rental and/or hotel reservation to your travel itinerary.

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Region of Waterloo Intl and San Francisco Bay Area flights

Browse other Region of Waterloo Intl and San Francisco Bay Area flight options. Last updated on 30 August 2026.

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Cheapest flights from Region of Waterloo Intl to San Francisco Bay Area
Explore the most affordable flight options available from Region of Waterloo Intl to San Francisco Bay Area. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 August 2026.

Best flights from Region of Waterloo Intl to San Francisco Bay Area
Discover carefully curated flight deals from Region of Waterloo Intl to San Francisco Bay Area that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 30 August 2026.

Last-minute flights from Region of Waterloo Intl to San Francisco Bay Area
Discover last-minute flight deals from Region of Waterloo Intl to San Francisco Bay Area. Data last updated 30 August 2026 and is based on user searches.

One-way flights from Region of Waterloo Intl to San Francisco Bay Area
Search for one-way flight options from Region of Waterloo Intl to San Francisco Bay Area. Find affordable one-way fares based on user searches. Data last updated 30 August 2026.