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CA $543 Cheap Flights from Castries (SLU) to Montreal (YUL)

View CA $543 flight on Sun, Oct 25, 2026Opens in a new window

Popular airlines from George F. L. Charles Airport (SLU) to Trudeau International Airport (YUL)

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Cheap flights from Castries (SLU) to Montreal (YUL)

Prices were available within the past 7 days and start at CA $543 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frequently asked questions

How much does a flight from Castries (SLU-George F. L. Charles) to Montreal, QC (YUL-Pierre Elliott Trudeau Intl.) cost?
You can find cheap one-way flights from CA $543 and cheap return flights SLU to YUL with Expedia. One-way flights typically cost between CA$838 and CA$1438. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when SLU to YUL ticket fares go up or down.
What is the cheapest month to fly from Castries (SLU-George F. L. Charles) to Montreal, QC (YUL-Pierre Elliott Trudeau Intl.)?
The cheapest months to fly from SLU to YUL are typically during off-peak season when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you are able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Castries (SLU-George F. L. Charles) to Montreal, QC (YUL-Pierre Elliott Trudeau Intl.)?
Enter SLU to YUL and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
How do I find cheap flights from Castries (SLU-George F. L. Charles) to Montreal, QC (YUL-Pierre Elliott Trudeau Intl.)?
To find a cheap flight from Castries (SLU-George F. L. Charles) to Montreal, QC (YUL-Pierre Elliott Trudeau Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Castries (SLU-George F. L. Charles) to Montreal, QC (YUL-Pierre Elliott Trudeau Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Castries (SLU-George F. L. Charles) to Montreal, QC (YUL-Pierre Elliott Trudeau Intl.)?
There are approximately 2 connecting flights per day from Castries (SLU-George F. L. Charles) to Montreal, QC (YUL-Pierre Elliott Trudeau Intl.). Some common connection points include Grantley Adams Intl. (BGI) and Piarco Intl. (POS).
What is the earliest flight from Castries (SLU-George F. L. Charles) to Montreal, QC (YUL-Pierre Elliott Trudeau Intl.)?
The earliest flight from Castries (SLU-George F. L. Charles) to Montreal, QC (YUL-Pierre Elliott Trudeau Intl.) typically departs around 2:40 PM. This flight is operated by WestJet. This is a seasonal service active in April. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Castries (SLU-George F. L. Charles) to Montreal, QC (YUL-Pierre Elliott Trudeau Intl.)?
You'll typically find the most flights from Castries (SLU-George F. L. Charles) to Montreal, QC (YUL-Pierre Elliott Trudeau Intl.) on a Tuesday, with around 4 flights available. This gives you several flight options for your travel plans. Major airlines on this route include American Airlines, Delta, and WestJet.
What are the most popular departure times for flights from Castries (SLU-George F. L. Charles) to Montreal, QC (YUL-Pierre Elliott Trudeau Intl.)?
The most popular departure times for flights from Castries (SLU-George F. L. Charles) to Montreal, QC (YUL-Pierre Elliott Trudeau Intl.) are in the late afternoon, from 3pm to 6pm. Many major carriers, including American Airlines and Delta, offer flights during this window. Many travellers prefer this time because it allows for a full day of activities before heading to the airport, and you'll arrive in Montreal in the evening.
How long does it take to fly from Castries (SLU-George F. L. Charles) to Montreal, QC (YUL-Pierre Elliott Trudeau Intl.)?
There are no nonstop flights from Castries (SLU-George F. L. Charles) to Montreal, QC (YUL-Pierre Elliott Trudeau Intl.). Flights with two or more stops typically take around 23 hours 18 minutes. This route covers a distance of approximately 3,697 kilometres. Keep in mind that actual flight times can vary due to factors like routing, weather, and wind patterns, so it's always a good idea to allow for some extra travel time.
Can you fly business or first class from Castries (SLU) to Montreal, QC (YUL)?
Select the "Business class" and "First class" filters when looking for Castries (SLU) to Montreal, QC (YUL) flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Castries (SLU-George F. L. Charles) to Montreal, QC (YUL-Pierre Elliott Trudeau Intl.) flight with Expedia?
It's easy to earn miles on a Castries (SLU-George F. L. Charles) to Montreal, QC (YUL-Pierre Elliott Trudeau Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Montreal, QC (YUL) from Castries (SLU)?
If you're planning to travel to Montreal from George F. L. Charles (SLU), you can fly directly into Pierre Elliott Trudeau Intl. (YUL). Some flights may connect through major hubs like Miami Intl. (MIA), Charlotte-Douglas Intl. (CLT) before reaching Montreal. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Castries (SLU-George F. L. Charles) to Montreal, QC (YUL-Pierre Elliott Trudeau Intl.) at the last minute?
Typically, booking a last minute flight from Castries (SLU-George F. L. Charles) to Montreal, QC (YUL-Pierre Elliott Trudeau Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Castries (SLU-George F. L. Charles) to Montreal, QC (YUL-Pierre Elliott Trudeau Intl.) flight and hotel package?
Securing a Castries (SLU-George F. L. Charles) to Montreal, QC (YUL-Pierre Elliott Trudeau Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Castries (SLU-George F. L. Charles) to Montreal, QC (YUL-Pierre Elliott Trudeau Intl.)?
If you booked your Castries (SLU-George F. L. Charles) to Montreal, QC (YUL-Pierre Elliott Trudeau Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
George F. L. Charles
Destination airport
Pierre Elliott Trudeau Intl.
Distance
3674 km

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Castries to Montreal Flights

The easy way to book your flights from Castries to Montreal 

With Expedia, it’s simple to find and book flights to Montreal from Castries whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 20 airlines that cover this route. There are nonstop flights to Pierre Elliott Trudeau Intl., too.  

Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Castries to Montreal today, tomorrow, or this week.  

 

Save dollars with cheap flights from George F. L. Charles, SLU to Pierre Elliott Trudeau Intl., YUL 

Sort your search results by price to find great deals on your flight from Castries to Montreal—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Montreal from Castries currently is just rising to .  

Here are more money-saving tips: 

  • Fly in when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to Montreal  
  • Avoid peak season and weekends when flights can cost more
  • Early morning and late-night flights are sometimes cheaper, so try varying your travel times 
  • One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! 

 

Reasons to choose Expedia for your flight to Montreal from Castries 

Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Montreal with Expedia today.

Castries to Montreal Flights

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