$271 Cheap Flights from Santiago (STI) to Montreal (YUL)

View $271 flight on Fri, Oct 17, 2025Opens in a new window

Popular airlines from Cibao Intl. Airport (STI) to Montreal–Trudeau Intl. Airport (YUL)

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Find available prices by choosing your travel dates.

Cheap Flights from Santiago to Montreal (STI-YUL)

Prices were available within the past 7 days and start at $271 for one-way flights and $575 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sat, May 24 - Thu, Jul 24
STI
Santiago de los Caballeros
YUL
Montreal
$575 Roundtrip, found 6 days ago
$575
Roundtrip
found 6 days ago
Select United flight, departing Sat, May 24 from Santiago de los Caballeros to Montreal, returning Thu, Jul 24, priced at $575 found 6 days ago
American Airlines
Fri, Oct 17 - Sat, Nov 8
STI
Santiago de los Caballeros
YUL
Montreal
$584 Roundtrip, just found
$584
Roundtrip
just found
Select American Airlines flight, departing Fri, Oct 17 from Santiago de los Caballeros to Montreal, returning Sat, Nov 8, priced at $584 just found
United
Fri, Oct 17 - Sat, Nov 8
STI
Santiago de los Caballeros
YUL
Montreal
$589 Roundtrip, just found
$589
Roundtrip
just found
Select United flight, departing Fri, Oct 17 from Santiago de los Caballeros to Montreal, returning Sat, Nov 8, priced at $589 just found
American Airlines
Fri, Oct 10 - Fri, Oct 31
STI
Santiago de los Caballeros
YUL
Montreal
$589 Roundtrip, found 5 days ago
$589
Roundtrip
found 5 days ago
Select American Airlines flight, departing Fri, Oct 10 from Santiago de los Caballeros to Montreal, returning Fri, Oct 31, priced at $589 found 5 days ago
United
Fri, Oct 17 - Sat, Nov 8
STI
Santiago de los Caballeros
YUL
Montreal
$593 Roundtrip, just found
$593
Roundtrip
just found
Select United flight, departing Fri, Oct 17 from Santiago de los Caballeros to Montreal, returning Sat, Nov 8, priced at $593 just found
United
Fri, May 16 - Wed, May 21
STI
Santiago de los Caballeros
YUL
Montreal
$595 Roundtrip, found 6 days ago
$595
Roundtrip
found 6 days ago
Select United flight, departing Fri, May 16 from Santiago de los Caballeros to Montreal, returning Wed, May 21, priced at $595 found 6 days ago
United
Sat, May 24 - Thu, Jul 24
STI
Santiago de los Caballeros
YUL
Montreal
$598 Roundtrip, found 6 days ago
$598
Roundtrip
found 6 days ago
Select United flight, departing Sat, May 24 from Santiago de los Caballeros to Montreal, returning Thu, Jul 24, priced at $598 found 6 days ago
United
Sat, May 10 - Sun, May 25
STI
Santiago de los Caballeros
YUL
Montreal
$599 Roundtrip, found 6 hours ago
$599
Roundtrip
found 6 hours ago
Select United flight, departing Sat, May 10 from Santiago de los Caballeros to Montreal, returning Sun, May 25, priced at $599 found 6 hours ago
United
Sat, May 10 - Wed, May 21
STI
Santiago de los Caballeros
YUL
Montreal
$601 Roundtrip, found 13 hours ago
$601
Roundtrip
found 13 hours ago
Select United flight, departing Sat, May 10 from Santiago de los Caballeros to Montreal, returning Wed, May 21, priced at $601 found 13 hours ago
Delta
Tue, Jun 3 - Wed, Jun 4
STI
Santiago de los Caballeros
YUL
Montreal
$1,011 Roundtrip, found 6 days ago
$1,011
Roundtrip
found 6 days ago
Select Delta flight, departing Tue, Jun 3 from Santiago de los Caballeros to Montreal, returning Wed, Jun 4, priced at $1,011 found 6 days ago
Flights from Santiago (STI) to Montreal (YUL)
Origin airport
Cibao Intl.
Destination airport
Pierre Elliott Trudeau Intl.
Airlines serving
American Airlines, United
Roundtrip price
$575
Distance
1809 mi

Santiago to Montreal Flights

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

 

The best time to book a flight from Santiago to Montreal

Sunday is one of the best days to book for cheap flights from Santiago 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 Santiago 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 Santiago to Montreal in 2025. You can also book with separate airlines for your outbound and return journeys, from $271 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 Santiago 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 Santiago 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 Cibao Intl. Airport (STI) to Pierre Elliott Trudeau Intl. Airport (YUL) cost?
Discover the latest flight deals from STI 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 STI to YUL?
The cheapest flights from STI 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.
Which airlines fly direct from Cibao Intl. Airport (STI) to Pierre Elliott Trudeau Intl. Airport (YUL)?
There aren’t any direct flights from Santiago (STI-Cibao Intl.) to Pierre Elliott Trudeau Intl. Airport (YUL). However, you’ll find other airports that offer nonstop flights. Hop on your plane at Gregorio Luperon Intl. Airport (POP) and head straight to Montreal without layovers.
What is the cheapest airline that flies from STI to YUL?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that’ll take you from STI to YUL. Sort your results by “Price (lowest to highest)” to snap up a great deal.
How many flights per day from Cibao Intl. Airport (STI) to Pierre Elliott Trudeau Intl. Airport (YUL)?
There aren’t any daily nonstop flights from Cibao Intl. Airport (STI) to Pierre Elliott Trudeau Intl. Airport (YUL). But you can book flights with layovers. Filter your search results on Expedia to include one or more stops, and you’ll be on your way before you know it.
What day of the week has the most flights from STI to YUL?
Generally you’ll find the greatest selection of flight options on a Friday. Tuesdays tend to be the quietest.* However, this can vary depending on the season, carrier 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 Cibao Intl. Airport (STI) to Pierre Elliott Trudeau Intl. Airport (YUL)?
To arrive at Pierre Elliott Trudeau Intl. Airport (YUL) on time, select a flight that leaves from Cibao Intl. Airport (STI) 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.
Is it cheaper to buy a plane ticket from Cibao Intl. Airport (STI) to Pierre Elliott Trudeau Intl. Airport (YUL) last-minute?
Holding off until just before your trip to book a flight from STI to YUL generally means paying more. While you may come across some last-minute offers, there’s no guarantee. Keep your travel schedule open to boost your chances of snagging a bargain.
Is it cheaper to book a STI to YUL flight and hotel package?
Compared with arranging hotels and flights separately, booking a STI to YUL flight and hotel package with Expedia could lead to significant savings. Better yet, having everything in one easy place takes the hassle out of travel planning. Just pick your flights and select from our wide range of stays, then tailor your trip with other add-ons like tours and car rentals.
Can I cancel or change the date of my flight from Cibao Intl. Airport (STI) to Pierre Elliott Trudeau Intl. Airport (YUL)?
If you reserved your STI to YUL flight in the last 24 hours, you may be able to modify or cancel it without fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal if you want more information.

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*Available to One Key members.