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

View $251 flight on Sat, Aug 30, 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 $741 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Cape Air
Wed, Aug 6 - Sun, Aug 31
STT
St. Thomas
YUL
Montreal
$741 Roundtrip, found 6 hours ago
$741
Roundtrip
found 6 hours ago
Select Cape Air flight, departing Wed, Aug 6 from St. Thomas to Montreal, returning Sun, Aug 31, priced at $741 found 6 hours ago
American Airlines
Sun, Aug 3 - Sat, Aug 30
STT
St. Thomas
YUL
Montreal
$777 Roundtrip, found 6 hours ago
$777
Roundtrip
found 6 hours ago
Select American Airlines flight, departing Sun, Aug 3 from St. Thomas to Montreal, returning Sat, Aug 30, priced at $777 found 6 hours ago
Cape Air
Wed, Aug 6 - Tue, Sep 2
STT
St. Thomas
YUL
Montreal
$791 Roundtrip, found 6 hours ago
$791
Roundtrip
found 6 hours ago
Select Cape Air flight, departing Wed, Aug 6 from St. Thomas to Montreal, returning Tue, Sep 2, priced at $791 found 6 hours ago
American Airlines
Sun, Aug 3 - Wed, Aug 27
STT
St. Thomas
YUL
Montreal
$802 Roundtrip, found 2 days ago
$802
Roundtrip
found 2 days ago
Select American Airlines flight, departing Sun, Aug 3 from St. Thomas to Montreal, returning Wed, Aug 27, priced at $802 found 2 days ago
American Airlines
Sun, Aug 3 - Sat, Aug 30
STT
St. Thomas
YUL
Montreal
$811 Roundtrip, found 6 hours ago
$811
Roundtrip
found 6 hours ago
Select American Airlines flight, departing Sun, Aug 3 from St. Thomas to Montreal, returning Sat, Aug 30, priced at $811 found 6 hours ago
American Airlines
Thu, Jul 31 - Tue, Sep 2
STT
St. Thomas
YUL
Montreal
$819 Roundtrip, found 6 hours ago
$819
Roundtrip
found 6 hours ago
Select American Airlines flight, departing Thu, Jul 31 from St. Thomas to Montreal, returning Tue, Sep 2, priced at $819 found 6 hours ago
American Airlines
Sun, Aug 3 - Fri, Aug 29
STT
St. Thomas
YUL
Montreal
$827 Roundtrip, found 6 hours ago
$827
Roundtrip
found 6 hours ago
Select American Airlines flight, departing Sun, Aug 3 from St. Thomas to Montreal, returning Fri, Aug 29, priced at $827 found 6 hours ago
United
Sun, Aug 3 - Sat, Aug 30
STT
St. Thomas
YUL
Montreal
$919 Roundtrip, found 6 hours ago
$919
Roundtrip
found 6 hours ago
Select United flight, departing Sun, Aug 3 from St. Thomas to Montreal, returning Sat, Aug 30, priced at $919 found 6 hours ago
Air Canada
Sun, Aug 3 - Sat, Aug 30
STT
St. Thomas
YUL
Montreal
$922 Roundtrip, found 6 hours ago
$922
Roundtrip
found 6 hours ago
Select Air Canada flight, departing Sun, Aug 3 from St. Thomas to Montreal, returning Sat, Aug 30, priced at $922 found 6 hours ago
Delta
Thu, Jul 31 - Thu, Aug 28
STT
St. Thomas
YUL
Montreal
$1,154 Roundtrip, found 2 days ago
$1,154
Roundtrip
found 2 days ago
Select Delta flight, departing Thu, Jul 31 from St. Thomas to Montreal, returning Thu, Aug 28, priced at $1,154 found 2 days ago
Flights from St. Thomas (STT) to Montreal (YUL)
Origin airport
Cyril E. King
Destination airport
Pierre Elliott Trudeau Intl.
Roundtrip price
$740
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 August. 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?
Discover the latest flight deals from STT to YUL by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from STT to YUL?
The cheapest flights from STT to YUL are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from STT to YUL?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from STT to YUL. Sort your results by "Price (lowest to highest)" to snap up a great deal.
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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*Available to One Key members.