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Cheap flights from Toronto Region of Waterloo Intl Airport to San Francisco from $193

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 9/8. 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

Cheap round-trip flights

Enter your travel dates to find the best prices.
WestJet Logo
8:40 pm - 12:00 pm
YKF
-
SFO
18h 20m
1 stop
WestJet Logo
6:00 am - 7:50 pm
SFO
-
YKF
10h 50m
1 stop
$376WestJet
Thu, Jun 11 - Mon, Jun 22
WestJet Logo
8:40 pm - 9:55 pm
YKF
-
SFO
28h 15m
1 stop
WestJet Logo
6:00 am - 7:50 pm
SFO
-
YKF
10h 50m
1 stop
$380WestJet
Thu, Jun 11 - Mon, Jun 22
WestJet Logo
8:40 pm - 12:00 pm
YKF
-
SFO
18h 20m
1 stop
WestJet Logo
6:00 am - 7:50 pm
SFO
-
YKF
10h 50m
1 stop
$381WestJet
Fri, Oct 9 - Mon, Oct 12
WestJet Logo
8:40 pm - 12:00 pm
YKF
-
SFO
18h 20m
1 stop
WestJet Logo
6:00 am - 7:50 pm
SFO
-
YKF
10h 50m
1 stop
$385WestJet
Mon, Sep 7 - Sat, Sep 12
WestJet Logo
8:40 pm - 9:55 pm
YKF
-
SFO
28h 15m
1 stop
WestJet Logo
6:00 am - 7:50 pm
SFO
-
YKF
10h 50m
1 stop
$390WestJet
Wed, Jun 17 - Mon, Jun 22
WestJet Logo
8:40 pm - 9:55 pm
YKF
-
SFO
28h 15m
1 stop
WestJet Logo
1:00 pm - 7:50 pm
SFO
-
YKF
27h 50m
1 stop
$391WestJet
Thu, Oct 1 - Sat, Oct 10
WestJet Logo
8:40 pm - 9:55 pm
YKF
-
SFO
28h 15m
1 stop
WestJet Logo
6:05 pm - 7:50 pm
SFO
-
YKF
22h 45m
1 stop
$394WestJet
Sun, Jul 26 - Sun, Sep 6
WestJet Logo
8:40 pm - 9:55 pm
YKF
-
SFO
28h 15m
1 stop
WestJet Logo
6:05 pm - 7:50 pm
SFO
-
YKF
22h 45m
1 stop
$396WestJet
Thu, Jun 11 - Sat, Jun 20
WestJet Logo
8:40 pm - 9:55 pm
YKF
-
SFO
28h 15m
1 stop
WestJet Logo
6:00 am - 7:50 pm
SFO
-
YKF
10h 50m
1 stop
$397WestJet
Fri, Sep 11 - Sat, Sep 26
WestJet Logo
8:40 pm - 9:55 pm
YKF
-
SFO
28h 15m
1 stop
WestJet Logo
6:00 am - 7:50 pm
SFO
-
YKF
10h 50m
1 stop
$398WestJet
Fri, Sep 11 - Mon, Sep 14

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
Jun 11
YKF8:40 pmToronto Region of Waterloo Intl
18h 20m
1 stop
SFO12:00 pmSan Francisco
Jun 22
SFO6:00 amSan Francisco
10h 50m
1 stop
YKF7:50 pmToronto Region of Waterloo Intl
$376
WestJet
Jun 11
YKF8:40 pmToronto Region of Waterloo Intl
28h 15m
1 stop
SFO9:55 pmSan Francisco
Jun 22
SFO6:00 amSan Francisco
10h 50m
1 stop
YKF7:50 pmToronto Region of Waterloo Intl
$380
WestJet
Oct 9
YKF8:40 pmToronto Region of Waterloo Intl
18h 20m
1 stop
SFO12:00 pmSan Francisco
Oct 12
SFO6:00 amSan Francisco
10h 50m
1 stop
YKF7:50 pmToronto Region of Waterloo Intl
$381

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 832,500 searches. Data last updated May 16, 2026.
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

Cheapest round-trip
Quickest round-trip

TorontoSan Francisco

YKF - SFO

YKFSFO

Toronto Region of Waterloo Intl

Thu 6/11

8:40 pm-12:00 pm

1 stop18h 20m

San Francisco

Mon 6/22

6:00 am-7:50 pm

1 stop10h 50m

$376

TorontoSan Francisco

YKF - SFO

YKFSFO

Toronto Region of Waterloo Intl

Thu 6/11

8:40 pm-9:55 pm

1 stop28h 15m

San Francisco

Mon 6/22

6:00 am-7:50 pm

1 stop10h 50m

$380

TorontoSan Francisco

YKF - SFO

YKFSFO

Toronto Region of Waterloo Intl

Fri 10/9

8:40 pm-12:00 pm

1 stop18h 20m

San Francisco

Mon 10/12

6:00 am-7:50 pm

1 stop10h 50m

$381

TorontoSan Francisco

YKF - SFO

YKFSFO

Toronto Region of Waterloo Intl

Mon 9/7

8:40 pm-12:00 pm

1 stop18h 20m

San Francisco

Sat 9/12

6:00 am-7:50 pm

1 stop10h 50m

$385

TorontoSan Francisco

YKF - SFO

YKFSFO

Toronto Region of Waterloo Intl

Wed 6/17

8:40 pm-9:55 pm

1 stop28h 15m

San Francisco

Mon 6/22

6:00 am-7:50 pm

1 stop10h 50m

$390

TorontoSan Francisco

YKF - SFO

YKFSFO

Toronto Region of Waterloo Intl

Thu 10/1

8:40 pm-9:55 pm

1 stop28h 15m

San Francisco

Sat 10/10

1:00 pm-7:50 pm

1 stop27h 50m

$391

TorontoSan Francisco

YKF - SFO

YKFSFO

Toronto Region of Waterloo Intl

Sun 7/26

8:40 pm-9:55 pm

1 stop28h 15m

San Francisco

Sun 9/6

6:05 pm-7:50 pm

1 stop22h 45m

$394

TorontoSan Francisco

YKF - SFO

YKFSFO

Toronto Region of Waterloo Intl

Thu 6/11

8:40 pm-9:55 pm

1 stop28h 15m

San Francisco

Sat 6/20

6:05 pm-7:50 pm

1 stop22h 45m

$396

TorontoSan Francisco

YKF - SFO

YKFSFO

Toronto Region of Waterloo Intl

Fri 9/11

8:40 pm-9:55 pm

1 stop28h 15m

San Francisco

Sat 9/26

6:00 am-7:50 pm

1 stop10h 50m

$397

TorontoSan Francisco

YKF - SFO

YKFSFO

Toronto Region of Waterloo Intl

Fri 9/11

8:40 pm-9:55 pm

1 stop28h 15m

San Francisco

Mon 9/14

6:00 am-7:50 pm

1 stop10h 50m

$398

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 Thursday when prices can be found for as low as $495. The most expensive day to fly to San Francisco is Monday, with ticket prices averaging around $710.

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

Our data shows that the cheapest Toronto Region of Waterloo Intl Airport to San Francisco flights are usually those with departure times in the morning. Our users have found flights to San Francisco in the morning for as low as $490. Flights in the evening are often more expensive with an average ticket price of $932.

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

Fastest flight time

18h 20m

Direct flights

None
The fastest flight from Toronto Region of Waterloo Intl Airport to San Francisco takes 18h 20m
There are no direct flights from Toronto Region of Waterloo Intl Airport to San Francisco. There are no popular flight routes from Toronto Region of Waterloo Intl Airport to San Francisco.
Search flight deals

Frequently asked questions about flying from Toronto Region of Waterloo Intl Airport to San Francisco

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

    A flight from Toronto Region of Waterloo Intl to San Francisco will travel around 2212.6 mi. By plane, this route typically takes 18h 20m.

  • 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 refreshed on a daily basis.

  • 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 you'll need for your trip to San Francisco Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at San Francisco Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Traveling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Santa Cruz
Carmel-by-the-Sea
Modesto
Sonoma
Walnut Creek
Bodega Bay
Hayward
Roseville
Santa Clara
Berkeley
Fremont
Vallejo
Big Sur
Sunnyvale
Calistoga
South San Francisco
Salinas
Daly City
Milpitas
Pacific Grove

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Toronto to San Francisco for you.

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

momondo does allow users to show only those flights to San Francisco from Toronto which offer a flexible booking policy as well as other useful filters and features.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Toronto to San Francisco.

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

Yes momondo offers price alerts on flights to San Francisco from Toronto. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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