$149 Cheap Flights from Kitchener (YKF) to San Diego (SAN)

View $149 flight on Tue, May 19, 2026Opens in a new window

Popular airlines from Kitchener, ON (YKF-Region of Waterloo Intl.) to San Diego Intl. Airport (SAN)

Cheap Flights from Kitchener to San Diego (YKF-SAN)

Prices were available within the past 7 days and start at $149 for one-way flights and $317 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

WestJet
Sat, Oct 25 - Sun, Nov 9
YKF
Kitchener
SAN
San Diego
$317 Roundtrip, found 5 days ago
$317
Roundtrip
found 5 days ago
Select WestJet flight, departing Sat, Oct 25 from Kitchener to San Diego, returning Sun, Nov 9, priced at $317 found 5 days ago
Air Canada
Fri, Dec 5 - Sun, Dec 14
YKF
Kitchener
SAN
San Diego
$363 Roundtrip, found 6 days ago
$363
Roundtrip
found 6 days ago
Select Air Canada flight, departing Fri, Dec 5 from Kitchener to San Diego, returning Sun, Dec 14, priced at $363 found 6 days ago
WestJet
Sat, Oct 25 - Mon, Nov 10
YKF
Kitchener
SAN
San Diego
$378 Roundtrip, found 5 days ago
$378
Roundtrip
found 5 days ago
Select WestJet flight, departing Sat, Oct 25 from Kitchener to San Diego, returning Mon, Nov 10, priced at $378 found 5 days ago
Air Canada
Wed, Nov 26 - Tue, Dec 2
YKF
Kitchener
SAN
San Diego
$379 Roundtrip, found 19 hours ago
$379
Roundtrip
found 19 hours ago
Select Air Canada flight, departing Wed, Nov 26 from Kitchener to San Diego, returning Tue, Dec 2, priced at $379 found 19 hours ago
WestJet
Sat, Oct 25 - Sun, Nov 9
YKF
Kitchener
SAN
San Diego
$384 Roundtrip, found 5 days ago
$384
Roundtrip
found 5 days ago
Select WestJet flight, departing Sat, Oct 25 from Kitchener to San Diego, returning Sun, Nov 9, priced at $384 found 5 days ago
Air Canada
Wed, Nov 26 - Tue, Dec 9
YKF
Kitchener
SAN
San Diego
$399 Roundtrip, found 3 days ago
$399
Roundtrip
found 3 days ago
Select Air Canada flight, departing Wed, Nov 26 from Kitchener to San Diego, returning Tue, Dec 9, priced at $399 found 3 days ago
Air Canada
Fri, Dec 5 - Sun, Dec 14
YKF
Kitchener
SAN
San Diego
$427 Roundtrip, found 6 days ago
$427
Roundtrip
found 6 days ago
Select Air Canada flight, departing Fri, Dec 5 from Kitchener to San Diego, returning Sun, Dec 14, priced at $427 found 6 days ago
WestJet
Sat, Oct 25 - Sun, Nov 9
YKF
Kitchener
SAN
San Diego
$431 Roundtrip, found 5 days ago
$431
Roundtrip
found 5 days ago
Select WestJet flight, departing Sat, Oct 25 from Kitchener to San Diego, returning Sun, Nov 9, priced at $431 found 5 days ago
Air Canada
Mon, Nov 24 - Wed, Dec 10
YKF
Kitchener
SAN
San Diego
$442 Roundtrip, just found
$442
Roundtrip
just found
Select Air Canada flight, departing Mon, Nov 24 from Kitchener to San Diego, returning Wed, Dec 10, priced at $442 just found
Air Canada
Wed, Nov 26 - Tue, Dec 2
YKF
Kitchener
SAN
San Diego
$443 Roundtrip, found 19 hours ago
$443
Roundtrip
found 19 hours ago
Select Air Canada flight, departing Wed, Nov 26 from Kitchener to San Diego, returning Tue, Dec 2, priced at $443 found 19 hours ago

Frequently asked questions

How much does a flight from Region of Waterloo Intl. Airport (YKF) to San Diego Intl. Airport (SAN) cost?
Get a cheap one-way flight from $149 or cheap return flight from $317 from Region of Waterloo Intl. Airport (YKF) to San Diego Intl. Airport (SAN) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Region of Waterloo Intl. Airport (YKF) to San Diego Intl. Airport (SAN)?
The cheapest month to fly from YKF to SAN is October, when there's less demand. Off-peak season is often when airlines offer better prices between these airports.
Which airlines fly direct from Region of Waterloo Intl. Airport (YKF) to San Diego Intl. Airport (SAN)?
While Kitchener, ON (YKF-Region of Waterloo Intl.) doesn't have any direct flights to San Diego Intl. Airport (SAN), other airports have nonstop options. Traveling from Pearson Intl. Airport (YYZ) will get you to San Diego without any layovers.
What is the cheapest airline that flies from Region of Waterloo Intl. Airport (YKF) to San Diego Intl. Airport (SAN)?
Use the filters on Expedia to compare airlines and find the cheapest carrier that'll take you from YKF to SAN. Then, sort your results by "Price (lowest to highest)" to pick up the best deal available.
How many flights per day from Region of Waterloo Intl. Airport (YKF) to San Diego Intl. Airport (SAN)?
You'll need to hop on a flight with a layover when traveling from Region of Waterloo Intl. Airport (YKF) to San Diego Intl. Airport (SAN). Direct flights don't operate daily on this route. However, simply filter your search to include one or two stops to find an option that works for you.
What day of the week has the most flights from YKF to SAN?
You'll generally find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Region of Waterloo Intl. Airport (YKF) to San Diego Intl. Airport (SAN)?
Book a flight from Region of Waterloo Intl. Airport (YKF) to San Diego Intl. Airport (SAN) that leaves before 3 PM to reduce the risk of cancellations and delays. Departures after this time are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Region of Waterloo Intl. Airport (YKF) to San Diego Intl. Airport (SAN) last-minute?
Booking your flight from YKF to SAN shortly before your getaway is typically more expensive. However, if there's some wiggle room with your departure dates and times, you could snag a cheap last-minute fare.
Is it cheaper to book a YKF to SAN flight and hotel package?
You can save money by booking a YKF to SAN flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one convenient place. Once you've selected your ideal accommodations and flights, consider other add-ons like tours, car rentals and activities.
Can I cancel or change the date of my flight from Region of Waterloo Intl. Airport (YKF) to San Diego Intl. Airport (SAN)?
It's generally possible to cancel or reschedule your YKF to SAN flight. However, if the booking was made more than 24 hours ago, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find further details on our Customer Service portal.

Travel information

Origin airport
Region of Waterloo Intl.
Destination airport
San Diego Intl.
Airlines serving
Air Canada, WestJet
Roundtrip price
$316
Distance
2113 mi

Book with confidence

Kitchener to San Diego Flights

The cheapest times to fly from Kitchener to San Diego

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Kitchener to San Diego are during the month of October. You can find some of the cheapest flights from Kitchener to San Diego with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Kitchener to San Diego

Sunday is one of the best days to book for cheap flights from Kitchener to San Diego: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Kitchener to San Diego

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Kitchener to San Diego in 2025. You can also book with separate airlines for your outbound and return journeys, from $149 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Kitchener to San Diego flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Kitchener to San Diego airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Kitchener to San Diego Flights

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*Available to One Key members.