Cheap Flights from Philadelphia (PHL) to St. Catharines (YCM)

Popular airlines from Philadelphia Intl. Airport (PHL) 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 $375
BUF
Buffalo Niagara Intl.
Cheapest
Average driving time to city center51 min
Flights from $375
Flights from Philadelphia (PHL) to St. Catharines (YCM)
Origin airport
Philadelphia Intl.
Destination airport
Niagara District
Distance
305 mi

Philadelphia to St. Catharines Flights

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

 

The best time to book a flight from Philadelphia to St. Catharines

Sunday is one of the best days to book for cheap flights from Philadelphia 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 Philadelphia 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 Philadelphia 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 Philadelphia 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 Philadelphia 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.

 

Frequently asked questions

How much does a flight from Philadelphia Intl. Airport (PHL) to St. Catharines, ON (YCM-Niagara District) cost?
Get a cheap one-way flight or cheap return flight from Philadelphia Intl. Airport (PHL) 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 Philadelphia Intl. Airport (PHL) to St. Catharines, ON (YCM-Niagara District)?
The cheapest month to fly from PHL to YCM is , when there's less demand. Off-peak months are often when airlines offer lower prices between these airports.
What is the cheapest airline that flies from Philadelphia Intl. Airport (PHL) to St. Catharines, ON (YCM-Niagara District)?
To find the cheapest airline flying from PHL to YCM, use Expedia's filter tool. Tailor your search based on your travel needs, such as preferred carriers and cabin class. You can then sort your results by "Price (lowest to highest)" to see the cheapest fares upfront.
How many flights per day from Philadelphia Intl. Airport (PHL) to St. Catharines, ON (YCM-Niagara District)?
You'll have to catch a flight with a layover when traveling from Philadelphia Intl. Airport (PHL) to St. Catharines, ON (YCM-Niagara District). Direct flights don't operate daily on this route. However, just filter your search to include one or two stops to find the best option for your trip.
What day of the week has the most flights from PHL to YCM?
You'll generally find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can change from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Philadelphia Intl. Airport (PHL) to St. Catharines, ON (YCM-Niagara District)?
Book a flight from Philadelphia Intl. Airport (PHL) to St. Catharines, ON (YCM-Niagara District) that leaves before 3 PM to reduce the risk of cancellations and delays. Departures after this hour have a 22% higher chance of being canceled, on average.**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 Philadelphia Intl. Airport (PHL)?
Hop on a direct flight from Philadelphia Intl. Airport (PHL) to Niagara-on-the-Lake and touch down at Pearson Intl. Airport (YYZ). An alternative point of entry into this destination is Buffalo Niagara Intl. Airport (BUF).
Is it cheaper to buy a plane ticket from Philadelphia Intl. Airport (PHL) to St. Catharines, ON (YCM-Niagara District) last-minute?
Waiting until right before your break to book your flight from PHL to YCM often results in higher prices. While you may come across some last-minute deals, there's no guarantee. Keep your travel plans flexible for the best chance of getting a bargain.
Is it cheaper to book a PHL to YCM flight and hotel package?
Compared with arranging flights and hotels separately, booking a PHL to YCM flight and hotel package with Expedia could result in significant savings. Better still, managing everything in one place will take the hassle out of travel planning. Just pick your flights and select from our extensive range of hotels, then personalize your trip with extras like activities and car rentals.
Can I cancel or change the date of my flight from Philadelphia Intl. Airport (PHL) to St. Catharines, ON (YCM-Niagara District)?
Typically, it's possible to cancel or reschedule your PHL to YCM flight. However, for bookings made more than 24 hours ago, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are possible and if any costs are involved. You'll also find more information on our Customer Service portal.

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*Available to One Key members.