$252 Cheap Flights from Montreal (YUL) to St. Thomas (STT)

View $252 flight on Sun, Dec 7, 2025Opens in a new window

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

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

Prices were available within the past 7 days and start at $252 for one-way flights and $420 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sun, Dec 7 - Thu, Dec 18
YUL
Montreal
STT
St. Thomas
$420 Roundtrip, found 5 days ago
$420
Roundtrip
found 5 days ago
Select United flight, departing Sun, Dec 7 from Montreal to St. Thomas, returning Thu, Dec 18, priced at $420 found 5 days ago
United
Sat, Dec 6 - Thu, Dec 18
YUL
Montreal
STT
St. Thomas
$456 Roundtrip, found 5 days ago
$456
Roundtrip
found 5 days ago
Select United flight, departing Sat, Dec 6 from Montreal to St. Thomas, returning Thu, Dec 18, priced at $456 found 5 days ago
United
Mon, Jan 19 - Wed, Feb 4
YUL
Montreal
STT
St. Thomas
$507 Roundtrip, found 6 hours ago
$507
Roundtrip
found 6 hours ago
Select United flight, departing Mon, Jan 19 from Montreal to St. Thomas, returning Wed, Feb 4, priced at $507 found 6 hours ago
American Airlines
Tue, Jan 13 - Mon, Feb 2
YUL
Montreal
STT
St. Thomas
$515 Roundtrip, found 6 hours ago
$515
Roundtrip
found 6 hours ago
Select American Airlines flight, departing Tue, Jan 13 from Montreal to St. Thomas, returning Mon, Feb 2, priced at $515 found 6 hours ago
American Airlines
Tue, Dec 9 - Thu, Dec 18
YUL
Montreal
STT
St. Thomas
$523 Roundtrip, found 5 days ago
$523
Roundtrip
found 5 days ago
Select American Airlines flight, departing Tue, Dec 9 from Montreal to St. Thomas, returning Thu, Dec 18, priced at $523 found 5 days ago
American Airlines
Wed, Jan 7 - Fri, Jan 23
YUL
Montreal
STT
St. Thomas
$527 Roundtrip, found 6 hours ago
$527
Roundtrip
found 6 hours ago
Select American Airlines flight, departing Wed, Jan 7 from Montreal to St. Thomas, returning Fri, Jan 23, priced at $527 found 6 hours ago
American Airlines
Mon, Dec 8 - Thu, Dec 11
YUL
Montreal
STT
St. Thomas
$528 Roundtrip, found 2 days ago
$528
Roundtrip
found 2 days ago
Select American Airlines flight, departing Mon, Dec 8 from Montreal to St. Thomas, returning Thu, Dec 11, priced at $528 found 2 days ago
United
Fri, Jan 23 - Wed, Feb 4
YUL
Montreal
STT
St. Thomas
$531 Roundtrip, found 6 hours ago
$531
Roundtrip
found 6 hours ago
Select United flight, departing Fri, Jan 23 from Montreal to St. Thomas, returning Wed, Feb 4, priced at $531 found 6 hours ago
Delta
Wed, Jan 21 - Tue, Feb 3
YUL
Montreal
STT
St. Thomas
$587 Roundtrip, found 6 hours ago
$587
Roundtrip
found 6 hours ago
Select Delta flight, departing Wed, Jan 21 from Montreal to St. Thomas, returning Tue, Feb 3, priced at $587 found 6 hours ago
Air Canada
Sat, Jan 10 - Wed, Jan 21
YUL
Montreal
STT
St. Thomas
$634 Roundtrip, found 6 hours ago
$634
Roundtrip
found 6 hours ago
Select Air Canada flight, departing Sat, Jan 10 from Montreal to St. Thomas, returning Wed, Jan 21, priced at $634 found 6 hours ago

Find the cheapest month to fly from Montreal (YUL) to St. Thomas (STT)

January is typically the cheapest month to fly

From $372 - $906 per traveler.

Alternative airports near St. Thomas

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

Select flight to Terrance B. Lettsome Intl. EIS. Cheapest option available. Flights from $946
EIS
Terrance B. Lettsome Intl.
Cheapest
Flights from $946

Frequently asked questions

How much does a flight from Pierre Elliott Trudeau Intl. Airport (YUL) to Cyril E. King Airport (STT) cost?
Lock in a cheap one-way flight from $252 or cheap return flight from $420 from Pierre Elliott Trudeau Intl. Airport (YUL) to Cyril E. King Airport (STT) 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 Pierre Elliott Trudeau Intl. Airport (YUL) to Cyril E. King Airport (STT)?
December is the cheapest month to fly from YUL to STT. Timing your trip outside of the busy season is often the key to finding better deals on flights.
What is the cheapest airline that flies from Pierre Elliott Trudeau Intl. Airport (YUL) to Cyril E. King Airport (STT)?
Use the filter tool on Expedia to compare airlines and find the most affordable carrier that'll fly you from YUL to STT. Then, sort your results by "Price (lowest to highest)" to score the best deal available.
How many flights per day from Pierre Elliott Trudeau Intl. Airport (YUL) to Cyril E. King Airport (STT)?
There aren't any daily direct flights departing from Pierre Elliott Trudeau Intl. Airport (YUL) to Cyril E. King Airport (STT). But you can opt for flights with layovers. Filter your search results on Expedia to include one or two stops, and you'll be soaring above the clouds before you know it.
What day of the week has the most flights from YUL to STT?
Friday is usually the busiest day for flights, while Tuesday is often the quietest.* Keep in mind that flight schedules can vary depending on a range of factors, such as the airline and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Pierre Elliott Trudeau Intl. Airport (YUL) to Cyril E. King Airport (STT)?
To avoid possible delays on the Pierre Elliott Trudeau Intl. Airport (YUL) to Cyril E. King Airport (STT) route, aim to travel before 3 PM. Later departures have a 22% higher chance of being 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 Pierre Elliott Trudeau Intl. Airport (YUL) to Cyril E. King Airport (STT) last-minute?
Booking your flight from YUL to STT just before your trip is usually more expensive. But if there's some wiggle room with your departure times and dates, you could land a cheap last-minute fare.
Is it cheaper to book a YUL to STT flight and hotel package?
Securing a YUL to STT flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip in one place. Choose from our extensive range of accommodations and then add flights, car rentals and activities to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Pierre Elliott Trudeau Intl. Airport (YUL) to Cyril E. King Airport (STT)?
If you booked your YUL to STT flight within the last 24 hours, you may be able to cancel or modify it at no cost. Depending on the airline and the ticket type you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you want more information.

Travel information

Origin airport
Pierre Elliott Trudeau Intl.
Destination airport
Cyril E. King
Airlines serving
American Airlines, United
Roundtrip price
$420
Distance
1940 mi

Book with confidence

Montreal to St. Thomas Flights

The cheapest times to fly from Montreal to St. Thomas

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

 

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

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

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 Montreal to St. Thomas in 2025. You can also book with separate airlines for your outbound and return journeys, from $252 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 Montreal to St. Thomas 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 Montreal to St. Thomas 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.

 

Montreal to St. Thomas Flights

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*Available to One Key members.