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CA $387 Cheap Flights from Montreal (YUL) to Castries (SLU)

View CA $387 flight on Sat, Nov 28, 2026Opens in a new window

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

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

Prices were available within the past 7 days and start at CA $387 for one-way flights and CA $814 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Sat, Nov 28 - Sun, Dec 6
YUL
Montreal
SLU
Castries
CA $814 Roundtrip, found 3 hours ago
CA $814
Roundtrip
found 3 hours ago
Select Air Canada flight, departing Sat, Nov 28 from Montreal to Castries, returning Sun, Dec 6, priced at CA $814 found 3 hours ago

Alternative airports near Castries

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

Select flight to Hewanorra Intl. UVF. Cheapest option available. Average driving time to city centre is 53 minutes. Flights from CA $631
UVF
Hewanorra Intl.
Cheapest
Average driving time to city centre53 min
Flights from CA $631

Find the cheapest month to fly from Montreal (YUL) to Castries (SLU)

September is typically the cheapest month to fly

From CA $490 - CA $944 per traveller.

Frequently asked questions

How much does a flight from Montreal, QC (YUL-Pierre Elliott Trudeau Intl.) to Castries (SLU-George F. L. Charles) cost?
You can find cheap one-way flights from CA $387 and cheap return flights from CA $814 YUL to SLU with Expedia. One-way flights typically cost between CA$365 and CA$1587, and return flights often range between CA$697 and CA$2030. 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 YUL to SLU ticket fares go up or down.
What is the cheapest month to fly from Montreal, QC (YUL-Pierre Elliott Trudeau Intl.) to Castries (SLU-George F. L. Charles)?
The cheapest months to fly from YUL to SLU 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 Montreal, QC (YUL) to Castries (SLU)?
Enter YUL to SLU and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
How do I find cheap flights from Montreal, QC (YUL-Pierre Elliott Trudeau Intl.) to Castries (SLU-George F. L. Charles)?
To find a cheap flight from Montreal, QC (YUL-Pierre Elliott Trudeau Intl.) to Castries (SLU-George F. L. Charles), 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 Montreal, QC (YUL-Pierre Elliott Trudeau Intl.) to Castries (SLU-George F. L. Charles)?
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 Montreal, QC (YUL-Pierre Elliott Trudeau Intl.) to Castries (SLU-George F. L. Charles)?
There are approximately 12 connecting flights per day from Montreal, QC (YUL-Pierre Elliott Trudeau Intl.) to Castries (SLU-George F. L. Charles). Some common connection points include Pearson Intl. (YYZ), John F. Kennedy Intl. (JFK), and Tocumen Intl. (PTY).
What is the earliest flight from Montreal, QC (YUL-Pierre Elliott Trudeau Intl.) to Castries (SLU-George F. L. Charles)?
The earliest flight from Montreal, QC (YUL-Pierre Elliott Trudeau Intl.) to Castries (SLU-George F. L. Charles) typically departs around 5:00 AM. This service is operated by Air Canada. Please note that this is a seasonal service, active only in September. An early departure like this can help you make the most of your time at your destination. 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 Montreal, QC (YUL-Pierre Elliott Trudeau Intl.) to Castries (SLU-George F. L. Charles)?
You'll find the most flights from Montreal, QC (YUL-Pierre Elliott Trudeau Intl.) to Castries (SLU-George F. L. Charles) on a Friday, with around 24 flights available. This gives you a good selection of options for your travel plans. Major airlines on this route include American Airlines, Air Canada, and Delta. Friday offers notably more flight options compared to other days of the week, making it a great day to consider for your departure.
What are the most popular departure times for flights from Montreal, QC (YUL-Pierre Elliott Trudeau Intl.) to Castries (SLU-George F. L. Charles)?
The most popular departure times for flights from Montreal, QC (YUL-Pierre Elliott Trudeau Intl.) to Castries (SLU-George F. L. Charles) are in the early morning, from 6am to 9am. Many major carriers, including American Airlines, Air Canada and Delta, offer flights during this window. Many travelers prefer this because it allows for an early arrival at your destination, giving you more time to enjoy your trip.
How long does it take to fly from Montreal, QC (YUL-Pierre Elliott Trudeau Intl.) to Castries (SLU-George F. L. Charles)?
Flying from YUL to SLU with a connection usually takes about 9 hours 20 minutes, traveling roughly 3,697 kilometers. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Montreal, QC (YUL-Pierre Elliott Trudeau Intl.) to Castries (SLU-George F. L. Charles)?
Yes, you can fly business class between YUL and SLU. You can fly business class with Air Canada and American Airlines.
How do I earn miles on a Montreal, QC (YUL) to Castries (SLU) flight with Expedia?
It's easy to earn miles on a Montreal, QC (YUL) to Castries (SLU) 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 Castries (SLU) from Montreal, QC (YUL)?
If you're planning to travel to Castries from Pierre Elliott Trudeau Intl. (YUL), you can fly directly into George F. L. Charles (SLU). Some flights may connect through major hubs like Philadelphia Intl. (PHL), Charlotte-Douglas Intl. (CLT), or O'Hare Intl. (ORD) before reaching Castries. 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 Montreal, QC (YUL) to Castries (SLU) at the last minute?
Typically, booking a last minute flight from Montreal, QC (YUL) to Castries (SLU) 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 Montreal, QC (YUL) to Castries (SLU) flight and hotel package?
Securing a Montreal, QC (YUL) to Castries (SLU) 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 Montreal, QC (YUL-Pierre Elliott Trudeau Intl.) to Castries (SLU-George F. L. Charles)?
If you booked your Montreal, QC (YUL-Pierre Elliott Trudeau Intl.) to Castries (SLU-George F. L. Charles) 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
Pierre Elliott Trudeau Intl.
Destination airport
George F. L. Charles
Roundtrip price
CA $813
Distance
3674 km

Book with confidence

Montreal to Castries Flights

The easy way to book your flights from Montreal to Castries 

With Expedia, it’s simple to find and book flights to Castries from Montreal whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 2 airlines that cover this route. There are nonstop flights to George F. L. Charles, 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 Montreal to Castries today, tomorrow, or this week.  

 

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

Sort your search results by price to find great deals on your flight from Montreal to Castries—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Castries from Montreal currently is just CA $814 rising to CA $814.  

Here are more money-saving tips: 

  • Fly in November when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to Castries  
  • 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 Castries from Montreal 

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 Castries with Expedia today.

Montreal to Castries Flights

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