$251 Cheap Flights from St. Thomas (STT) to Montreal (YUL)

View $251 flight on Wed, Oct 29, 2025Opens in a new window

Popular airlines from Cyril E. King Airport (STT) to Montreal–Trudeau Intl. Airport (YUL)

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Cheap Flights from St. Thomas to Montreal (STT-YUL)

Prices were available within the past 7 days and start at $251 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Flights from St. Thomas (STT) to Montreal (YUL)
Origin airport
Cyril E. King
Destination airport
Pierre Elliott Trudeau Intl.
Distance
1940 mi

St. Thomas to Montreal Flights

The cheapest times to fly from St. Thomas to Montreal

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

 

The best time to book a flight from St. Thomas to Montreal

Sunday is one of the best days to book for cheap flights from St. Thomas to Montreal: 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 St. Thomas to Montreal

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 St. Thomas to Montreal in 2025. You can also book with separate airlines for your outbound and return journeys, from $251 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 St. Thomas to Montreal 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 St. Thomas to Montreal 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 Cyril E. King Airport (STT) to Pierre Elliott Trudeau Intl. Airport (YUL) cost?
Get a cheap one-way flight from $251 or cheap return flight from Cyril E. King Airport (STT) to Pierre Elliott Trudeau Intl. Airport (YUL) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Cyril E. King Airport (STT) to Pierre Elliott Trudeau Intl. Airport (YUL)?
The cheapest month to fly from STT to YUL is , when demand is low. Off-peak season is often when you'll find lower airfares between these airports.
What is the cheapest airline that flies from Cyril E. King Airport (STT) to Pierre Elliott Trudeau Intl. Airport (YUL)?
To find the cheapest airline that'll fly you from STT to YUL, use Expedia's filter tool. Tailor your search based on your travel style, such as preferred carriers and seat class. You can then sort your results by "Price (lowest to highest)" to see the most affordable options first.
How many flights per day from Cyril E. King Airport (STT) to Pierre Elliott Trudeau Intl. Airport (YUL)?
Nonstop flights from Cyril E. King Airport (STT) to Pierre Elliott Trudeau Intl. Airport (YUL) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filters. Enter your dates and pick either "1 Stop" or "2+ Stops."
What day of the week has the most flights from STT to YUL?
Typically you'll find the widest variety of flight choices on a Friday. Tuesdays tend to be the quietest.* But this can vary depending on the airline, time of year and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Cyril E. King Airport (STT) to Pierre Elliott Trudeau Intl. Airport (YUL)?
To avoid possible delays on the Cyril E. King Airport (STT) to Pierre Elliott Trudeau Intl. Airport (YUL) route, aim to travel before 3 PM. Departures after this hour have a 22% higher chance of cancellation.**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 Cyril E. King Airport (STT) to Pierre Elliott Trudeau Intl. Airport (YUL) last-minute?
Holding off until just before your departure to book a flight from STT to YUL generally means paying more. While you may find some last-minute deals, they're not always guaranteed. Keep your travel schedule open to boost your chances of snagging a bargain.
Is it cheaper to book a STT to YUL flight and hotel package?
Compared with arranging flights and hotels separately, booking a STT to YUL flight and hotel package with Expedia could lead to significant savings. Better yet, having everything in one convenient place takes the hassle out of planning your trip. Just secure your flights and select from our extensive range of stays, then personalize your trip with other add-ons like tours, activities and car rentals.
Can I cancel or change the date of my flight from Cyril E. King Airport (STT) to Pierre Elliott Trudeau Intl. Airport (YUL)?
Usually, it's possible to cancel or reschedule your STT to YUL flight. However, if the booking was 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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