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Cheap flights from Toronto Region of Waterloo Intl Airport to San Francisco from C$ 186

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Toronto Region of Waterloo Intl Airport to San Francisco departing on 20/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Toronto Region of Waterloo Intl Airport to San Francisco (YKF-SFO)

Cheap round-trip flights

WestJet Logo
6:00 a.m. - 11:56 a.m.YKF-SFO
8h 56m1 stop
WestJet Logo
7:30 a.m. - 6:55 p.m.SFO-YKF
8h 25m1 stop
C$ 339WestJet
Find Deal
Sat, 30 Aug - Tue, 2 Sep
WestJet Logo
6:00 a.m. - 11:56 a.m.YKF-SFO
8h 56m1 stop
WestJet Logo
7:30 a.m. - 6:55 p.m.SFO-YKF
8h 25m1 stop
C$ 349WestJet
Find Deal
Tue, 26 Aug - Tue, 2 Sep
WestJet Logo
6:00 a.m. - 11:54 a.m.YKF-SFO
8h 54m1 stop
WestJet Logo
12:50 p.m. - 12:45 a.m.SFO-YKF
8h 55m1 stop
C$ 354WestJet
Find Deal
Thu, 18 Sep - Sun, 21 Sep
WestJet Logo
6:00 a.m. - 11:56 a.m.YKF-SFO
8h 56m1 stop
WestJet Logo
7:30 a.m. - 6:55 p.m.SFO-YKF
8h 25m1 stop
C$ 357WestJet
Find Deal
Sat, 30 Aug - Tue, 2 Sep
WestJet Logo
6:00 a.m. - 11:56 a.m.YKF-SFO
8h 56m1 stop
WestJet Logo
12:50 p.m. - 12:45 a.m.SFO-YKF
8h 55m1 stop
C$ 361WestJet
Find Deal
Sun, 31 Aug - Wed, 10 Sep
WestJet Logo
6:00 a.m. - 11:56 a.m.YKF-SFO
8h 56m1 stop
WestJet Logo
12:50 p.m. - 12:45 a.m.SFO-YKF
8h 55m1 stop
C$ 362WestJet
Find Deal
Fri, 29 Aug - Sun, 14 Sep
WestJet Logo
6:00 a.m. - 11:56 a.m.YKF-SFO
8h 56m1 stop
WestJet Logo
12:50 p.m. - 12:45 a.m.SFO-YKF
8h 55m1 stop
C$ 365WestJet
Find Deal
Fri, 29 Aug - Mon, 8 Sep
WestJet Logo
6:00 a.m. - 1:59 p.m.YKF-SFO
10h 59m2 stops
WestJet Logo
7:30 a.m. - 6:55 p.m.SFO-YKF
8h 25m1 stop
C$ 366WestJet
Find Deal
Sat, 30 Aug - Tue, 2 Sep
WestJet Logo
6:00 a.m. - 11:56 a.m.YKF-SFO
8h 56m1 stop
WestJet Logo
7:30 a.m. - 6:55 p.m.SFO-YKF
8h 25m1 stop
C$ 369WestJet
Find Deal
Wed, 27 Aug - Tue, 2 Sep
Logo
6:00 a.m. - 11:56 a.m.YKF-SFO
8h 56m1 stop
Logo
10:15 a.m. - 5:15 a.m.SFO-YKF
16h 00m2 stops
C$ 439
Find Deal
Fri, 29 Aug - Sun, 14 Sep

WestJet flights from Toronto Region of Waterloo Intl Airport to San Francisco

Our best WestJet deals on Toronto Region of Waterloo Intl Airport to San Francisco flight tickets
WestJet
30 Aug
YKF6:00 a.m.Toronto Region of Waterloo Intl
8h 56m
1 stop
SFO11:56 a.m.San Francisco
2 Sep
SFO7:30 a.m.San Francisco
8h 25m
1 stop
YKF6:55 p.m.Toronto Region of Waterloo Intl
C$ 339
Find similar
WestJet
26 Aug
YKF6:00 a.m.Toronto Region of Waterloo Intl
8h 56m
1 stop
SFO11:56 a.m.San Francisco
2 Sep
SFO7:30 a.m.San Francisco
8h 25m
1 stop
YKF6:55 p.m.Toronto Region of Waterloo Intl
C$ 349
Find similar
WestJet
18 Sep
YKF6:00 a.m.Toronto Region of Waterloo Intl
8h 54m
1 stop
SFO11:54 a.m.San Francisco
21 Sep
SFO12:50 p.m.San Francisco
8h 55m
1 stop
YKF12:45 a.m.Toronto Region of Waterloo Intl
C$ 354
Find similar

Flair Airlines flights from Toronto Region of Waterloo Intl Airport to San Francisco

Our best Flair Airlines deals on Toronto Region of Waterloo Intl Airport to San Francisco flight tickets
Flair Airlines
16 Aug
YKF8:25 p.m.Toronto Region of Waterloo Intl
16h 05m
1 stop
SFO9:30 a.m.San Francisco
23 Aug
SFO10:15 a.m.San Francisco
16h 15m
2 stops
YKF5:30 a.m.Toronto Region of Waterloo Intl
C$ 771
Find similar
Flair Airlines
16 Aug
YKF8:25 p.m.Toronto Region of Waterloo Intl
16h 05m
1 stop
SFO9:30 a.m.San Francisco
18 Aug
SFO10:15 a.m.San Francisco
17h 55m
1 stop
YKF7:10 a.m.Toronto Region of Waterloo Intl
C$ 789
Find similar
Flair Airlines
16 Aug
YKF8:25 p.m.Toronto Region of Waterloo Intl
16h 05m
1 stop
SFO9:30 a.m.San Francisco
18 Aug
SFO10:15 a.m.San Francisco
17h 55m
1 stop
YKF7:10 a.m.Toronto Region of Waterloo Intl
C$ 791
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Toronto Region of Waterloo Intl Airport 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, momondo users made 96,600 searches. Data last updated 5 August 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

Fly to

Route

Depart

Return

Price

TorontoSan Francisco

YKF - SFO

YKFSFO

Toronto Region of Waterloo Intl

Sat 30/8

6:00 a.m.-11:56 a.m.

1 stop8h 56m

San Francisco

Tue 2/9

7:30 a.m.-6:55 p.m.

1 stop8h 25m

C$ 339

TorontoSan Francisco

YKF - SFO

YKFSFO

Toronto Region of Waterloo Intl

Tue 26/8

6:00 a.m.-11:56 a.m.

1 stop8h 56m

San Francisco

Tue 2/9

7:30 a.m.-6:55 p.m.

1 stop8h 25m

C$ 349

TorontoSan Francisco

YKF - SFO

YKFSFO

Toronto Region of Waterloo Intl

Thu 18/9

6:00 a.m.-11:54 a.m.

1 stop8h 54m

San Francisco

Sun 21/9

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

1 stop8h 55m

C$ 354

TorontoSan Francisco

YKF - SFO

YKFSFO

Toronto Region of Waterloo Intl

Sat 30/8

6:00 a.m.-11:56 a.m.

1 stop8h 56m

San Francisco

Tue 2/9

7:30 a.m.-6:55 p.m.

1 stop8h 25m

C$ 357

TorontoSan Francisco

YKF - SFO

YKFSFO

Toronto Region of Waterloo Intl

Sun 31/8

6:00 a.m.-11:56 a.m.

1 stop8h 56m

San Francisco

Wed 10/9

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

1 stop8h 55m

C$ 361

TorontoSan Francisco

YKF - SFO

YKFSFO

Toronto Region of Waterloo Intl

Fri 29/8

6:00 a.m.-11:56 a.m.

1 stop8h 56m

San Francisco

Sun 14/9

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

1 stop8h 55m

C$ 362

TorontoSan Francisco

YKF - SFO

YKFSFO

Toronto Region of Waterloo Intl

Fri 29/8

6:00 a.m.-11:56 a.m.

1 stop8h 56m

San Francisco

Mon 8/9

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

1 stop8h 55m

C$ 365

TorontoSan Francisco

YKF - SFO

YKFSFO

Toronto Region of Waterloo Intl

Sat 30/8

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

2 stops10h 59m

San Francisco

Tue 2/9

7:30 a.m.-6:55 p.m.

1 stop8h 25m

C$ 366

TorontoSan Francisco

YKF - SFO

YKFSFO

Toronto Region of Waterloo Intl

Wed 27/8

6:00 a.m.-11:56 a.m.

1 stop8h 56m

San Francisco

Tue 2/9

7:30 a.m.-6:55 p.m.

1 stop8h 25m

C$ 369

TorontoSan Francisco

YKF - SFO

YKFSFO

Toronto Region of Waterloo Intl

Fri 29/8

6:00 a.m.-11:56 a.m.

1 stop8h 56m

San Francisco

Sun 14/9

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

2 stops16h 00m

C$ 439

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to San Francisco from

How to get the cheapest flight ticket from Toronto Region of Waterloo Intl Airport to San Francisco

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to San Francisco?

The cheapest day to depart from Toronto Region of Waterloo Intl Airport to San Francisco is on a Friday. Travellers who choose to depart for San Francisco on a Friday will often find tickets for as low as C$ 800. On the other hand, Monday is the most expensive day to depart from Toronto Region of Waterloo Intl Airport because it is more convenient for both business and leisure travellers. As a result, prices tend to be around C$ 1,273.

What is the cheapest time of day to depart on your flight to San Francisco?

Flying to San Francisco from Toronto Region of Waterloo Intl Airport at noon is the least expensive time of day to depart. momondo users have found prices as low as C$ 644 when looking at flights departing at noon. In contrast, the most expensive time of day to depart to San Francisco is in the evening when prices are around C$ 1,383.

Can stopping save me money on Toronto Region of Waterloo Intl Airport to San Francisco flights?

You could potentially save up to 1% on your flight if you consider stops on a Toronto Region of Waterloo Intl Airport to San Francisco flight.

When to book flights from Toronto Region of Waterloo Intl Airport to San Francisco

Are you open to changing your travel dates? Check out the ideal times to fly from Toronto Region of Waterloo Intl Airport to San Francisco according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Toronto Region of Waterloo Intl Airport to San Francisco (YKF to SFO) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Toronto Region of Waterloo Intl Airport to San Francisco

Best price found

C$ 186

Fastest flight time

8h 52m

Direct flights

None

Airports in San Francisco

1 airport
The best one-way flight to San Francisco from Toronto Region of Waterloo Intl Airport in the past 72 hours is C$ 186. The best round-trip flight deal from Toronto Region of Waterloo Intl Airport to San Francisco found on momondo in the last 72 hours is C$ 339.
The fastest flight from Toronto Region of Waterloo Intl Airport to San Francisco takes 8h 52m
There are no direct flights from Toronto Region of Waterloo Intl Airport to San Francisco. Popular non-direct route for this connection is Toronto Region of Waterloo Intl Airport - San Francisco Airport.
There is 1 airport near San Francisco: San Francisco (SFO)
Search flight deals

  • How far is Toronto Region of Waterloo Intl to San Francisco by plane?

    The distance between Toronto Region of Waterloo Intl and San Francisco is about 3561.2 km. By plane, this route typically takes 8h 54m.

  • When did momondo last update prices for flights from Toronto Region of Waterloo Intl Airport to San Francisco Airport?

    Prices for flights from Toronto Region of Waterloo Intl Airport to San Francisco Airport are updated daily.

  • How many operators does momondo search for flights from Toronto Region of Waterloo Intl Airport to San Francisco Airport?

  • How old do you have to be to fly from Toronto Region of Waterloo Intl Airport to San Francisco Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Toronto Region of Waterloo Intl Airport to San Francisco Airport.

  • What documentation or ID do you need to fly to San Francisco Airport?

    The travel and health documents required for your trip to San Francisco Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at San Francisco Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from Toronto Region of Waterloo Intl Airport to San Francisco?

Best airlines flying from Toronto Region of Waterloo Intl Airport to San Francisco

Compare and see reviews for airlines that fly from Toronto Region of Waterloo Intl Airport to San Francisco with momondo
Airline
Rating
Free Cancellation
Price
WestJetPriceFrom C$ 286Free CancellationRating
7.2
2,997 reviews
Search WestJet flights
Air CanadaPriceFrom C$ 335Free CancellationRating
7.1
9,890 reviews
Search Air Canada flights

Travelling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
San Mateo
Belmont
Los Altos
South San Francisco
San Bruno
Santa Cruz
Newark
Sunnyvale
Fremont
Turlock
Mountain View
Half Moon Bay
Cupertino
Mill Valley
Los Banos
Palo Alto
Pacifica
Berkeley
Roseville
Woodland

Why use momondo?

Why should I use momondo to find a flight deal from Toronto to San Francisco?

It is quick and easy to find Toronto to San Francisco flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to San Francisco that suits you.

Can I find flights from Toronto to San Francisco with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to San Francisco from Toronto with this policy.

How can momondo help me find flights from Toronto to San Francisco?

Once you have performed a search for Toronto to San Francisco flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Toronto to San Francisco right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Toronto to San Francisco flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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