Cheap Flights from Kitchener / Waterloo to San Francisco International

Compare Kitchener / Waterloo to San Francisco International flight deals

Find the cheapest month or even day of the year to fly to San Francisco International

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Flight deals from Kitchener / Waterloo to San Francisco International

Looking for a cheap last-minute deal or the best return flight from Kitchener / Waterloo Airport to San Francisco International Airport? If you want to travel next month, return fares start from R 6,536. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Kitchener / Waterloo to San Francisco International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Kitchener / Waterloo to San Francisco International flights are currently cheapest in October.

Toronto to San Francisco: Flight information

The things to know before you go.
Cheapest flight foundR 3,432
Cheapest month to flyOctober

Finding cheap flights from Kitchener / Waterloo to San Francisco International: Frequently asked questions

The best price we found for a return flight from Kitchener / Waterloo to San Francisco International is R 6,536. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Kitchener / Waterloo to San Francisco International. But we found flights with one or more stops from R 6,536.
As of June 2026, there are no flights flying from Kitchener / Waterloo to San Francisco International.
The cheapest month to fly from Kitchener / Waterloo to San Francisco International is usually July.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Kitchener / Waterloo Airport to San Francisco International Airport on Tuesday, 14 July 2026.
No airlines currently offer direct flights between Kitchener / Waterloo Airport and San Francisco International Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to San Francisco International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to San Francisco is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, WestJet offers the cheapest flight tickets to San Francisco International.

Flying from Region of Waterloo International Airport (YKF) to San Francisco International Airport (SFO): what you need to know

  • San Francisco's timezone is UTC-7, making San Francisco three hours behind Toronto.

  • Arriving two hours before an international flight and one hour ahead of a domestic departure are golden rules for hassle-free flying. Get to the airport on time to catch your YKF to SFO flight.

  • Travelling during a peak time such as August? School holidays and other popular periods can result in longer lines at check-in and security. Play it safe and get there up to four hours before an international flight and two hours before a domestic departure.

How to find the cheapest flights from Region of Waterloo International Airport (YKF) to San Francisco International Airport (SFO)

  • The lowest price we've seen for a one-way Region of Waterloo International Airport to San Francisco International Airport flight is R 3,432. A round-trip plane ticket is currently R 6,536. Depending on the availability and when you book, these fares could change.

  • It's usually smart to book early if you're hoping to get cheap tickets from YKF to SFO. That's because airlines change prices based on demand, which tends to rise closer to the date of departure.

  • The 'Whole month' search tool shows you the cheapest flights from Region of Waterloo International Airport to San Francisco International Airport throughout the entire month. It's an easy way to snap up a bargain if your dates aren't set in stone.

  • Save time looking for cheap flights from YKF to SFO by setting up a Price Alert. You'll get an email or push notification on the app when a lower fare pops up.

  • Find the perfect flight for you by using the filters. To see the 'Fastest,' 'Cheapest' or 'Best' flights from Region of Waterloo International Airport to San Francisco International Airport, use the 'Sort by' function. You can also filter results by airline, departure and arrival times, and number of stops.

Handy information about Region of Waterloo International Airport (YKF)

  • When it comes to Region of Waterloo International Airport's on-time performance, 63.64% of flights meet their scheduled arrival time.

  • Region of Waterloo International Airport is around 105 kilometres from central Toronto. If you're ride-sharing, catching a cab or driving from the centre, it'll take 1 hour 15 minutes or so to arrive, depending on the traffic.

  • The trip on public transport will take about 4 hours 5 minutes.

  • Looking for a handy hotel close to YKF? If you're catching an early flight from Region of Waterloo International Airport to San Francisco International Airport, these stays will have you moments from your departure lounge:

Arriving at San Francisco International Airport (SFO)

Getting from San Francisco International Airport (SFO) to central San Francisco

  • From San Francisco International Airport, San Francisco is approximately 21 kilometres away. It takes around 20 minutes to get to the centre driving.

  • It typically takes 45 minutes if you're travelling on public transport.

When to fly to San Francisco International Airport (SFO)

  • August is the busiest month for flights from Region of Waterloo International Airport to San Francisco International Airport. For a quieter experience, travel to San Francisco in February.

  • When booking your flight from Region of Waterloo International Airport to San Francisco International Airport, consider the kind of weather you like. September is the warmest month in San Francisco, with the temperature ranging from 12ºC (54ºF) to 22ºC (72ºF).

  • January has average temperatures of between 6ºC (43ºF) and 16ºC (61ºF). Look for cheap tickets from YKF to SFO sometime then if you like travelling in cooler conditions.

Explore more of United States

  • You've visited San Francisco, now it's time to discover other corners of United States. Journey around 64 kilometres south-east to San Jose to tick off its top sights. From Winchester Mystery House to Rosicrucian Egyptian Museum and San Jose Museum of Art, you've got a jam-packed schedule ahead.

  • Around 257 kilometres south-east of San Francisco, Fresno is another essential stop in United States. No visit is complete without checking out Forestiere Underground Gardens, Fresno Chaffee Zoo and Shinzen Japanese Garden.

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.