Cheap Flights from San Diego (SAN) to St. Catharines (YCM)

Popular airlines from San Diego Intl. Airport (SAN) to St. Catharines, ON (YCM-Niagara District)

Alternative airports near St. Catharines

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Buffalo Niagara Intl. BUF. Cheapest option available. Average driving time to city center is 51 minutes. Flights from $437
BUF
Buffalo Niagara Intl.
Cheapest
Average driving time to city center51 min
Flights from $437

Frequently asked questions

How much does a flight from San Diego Intl. Airport (SAN) to St. Catharines, ON (YCM-Niagara District) cost?
Lock in a cheap one-way flight or cheap return flight from San Diego Intl. Airport (SAN) to St. Catharines, ON (YCM-Niagara District) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from San Diego Intl. Airport (SAN) to St. Catharines, ON (YCM-Niagara District)?
The cheapest month to fly from SAN to YCM is , when there's less demand. Off-peak months are generally when better flight deals are available between these airports.
What is the cheapest airline that flies from San Diego Intl. Airport (SAN) to St. Catharines, ON (YCM-Niagara District)?
Use the filter tool on Expedia to compare airlines and find the most affordable carrier that'll fly you from SAN to YCM. Then, sort your results by "Price (lowest to highest)" to score a good deal.
How many flights per day from San Diego Intl. Airport (SAN) to St. Catharines, ON (YCM-Niagara District)?
You'll need to take a flight with a layover when traveling from San Diego Intl. Airport (SAN) to St. Catharines, ON (YCM-Niagara District). There are no daily direct flights on this route. However, just filter your search to include one or more stops to find the best option for your trip.
What day of the week has the most flights from SAN to YCM?
You'll usually find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change 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 San Diego Intl. Airport (SAN) to St. Catharines, ON (YCM-Niagara District)?
To touch down at St. Catharines, ON (YCM-Niagara District) without delays, book a flight that leaves from San Diego Intl. Airport (SAN) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**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.
What airports do you fly into for Niagara-on-the-Lake from San Diego Intl. Airport (SAN)?
Compare your flight options from San Diego Intl. Airport (SAN) to Pearson Intl. Airport (YYZ). This is the only Niagara-on-the-Lake airport you can arrive at if you're taking a direct flight.
Is it cheaper to buy a plane ticket from San Diego Intl. Airport (SAN) to St. Catharines, ON (YCM-Niagara District) last-minute?
Booking your plane ticket from SAN to YCM shortly before your getaway is generally more expensive. But if there's some wiggle room with your departure dates and times, you could score a cheap last-minute fare.
Is it cheaper to book a SAN to YCM flight and hotel package?
You'll generally save money by booking a SAN to YCM flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one place. After choosing your preferred accommodations and flights, consider adding extras such as activities, car rentals and tours.
Can I cancel or change the date of my flight from San Diego Intl. Airport (SAN) to St. Catharines, ON (YCM-Niagara District)?
In most cases, you're able to reschedule or cancel your SAN to YCM flight. However, additional fees may apply, especially if you booked more than 24 hours ago. Check your itinerary for the airline's fees and guidelines on flight changes, or if you'd like further information, go to our Customer Service portal.

Travel information

Origin airport
San Diego Intl.
Destination airport
Niagara District
Distance
2172 mi

Book with confidence

San Diego to St. Catharines Flights

The cheapest times to fly from San Diego to St. Catharines

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 San Diego to St. Catharines are during the month of . You can find some of the cheapest flights from San Diego to St. Catharines with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from San Diego to St. Catharines

Sunday is one of the best days to book for cheap flights from San Diego to St. Catharines: 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 San Diego to St. Catharines

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 San Diego to St. Catharines in 2025. You can also book with separate airlines for your outbound and return journeys, from 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 San Diego to St. Catharines 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 San Diego to St. Catharines 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.

 

San Diego to St. Catharines Flights

Explore a world of travel with Expedia

*Available to One Key members.