Cheap Flights from Montreal Pierre Elliott Trudeau to Castries

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Flight deals from Montreal Pierre Elliott Trudeau to Castries

Looking for a cheap last-minute deal or the best return flight from Montreal Pierre Elliott Trudeau to Castries? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Montreal Pierre Elliott Trudeau to Castries

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Montreal Pierre Elliott Trudeau to Castries flights are currently cheapest in September.

Alternative Montreal Pierre Elliott Trudeau to Castries routes

Looking for the cheapest, fastest or easiest route from Montreal Pierre Elliott Trudeau to Castries? You could fly into the following airports instead.

Montreal to Castries: Flight information

The things to know before you go.
Cheapest flight foundR 3,278
Cheapest month to flySeptember

Finding cheap flights from Montreal Pierre Elliott Trudeau to Castries: Frequently asked questions

There are 2 airports in Castries: St Lucia Vigie and St Lucia Hewanorra.
The best price we found for a return flight from Montreal Pierre Elliott Trudeau to Castries is R 5,875. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Montreal Pierre Elliott Trudeau to Castries. But we found flights with one or more stops from R 5,875.
As of August 2025, there are no flights flying from Montreal Pierre Elliott Trudeau to Castries.
The cheapest month to fly from Montreal Pierre Elliott Trudeau to Castries is usually September.
If you're flying from Montreal Pierre Elliott Trudeau Airport, the cheapest airport near Castries is St Lucia Hewanorra – which is 30.5 km away from the centre of Castries. We've found flights into this airport from R 5,875.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Montreal Pierre Elliott Trudeau Airport to Castries on Friday, 5 September 2025.
No airlines currently offer direct flights between Montreal Pierre Elliott Trudeau Airport and Castries. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Castries but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Castries is around 40 days in advance, so don’t leave your flight to the last minute.
In August, the average temperature is usually around 28°C. September is typically the warmest month in Castries, when it usually averages around 28°C. You can expect the least rain in February. The coldest month is February, with temperatures averaging 25°C. The rainiest month is October.
Currently, United offers the cheapest flight tickets to Castries.

Flying from Montreal-Pierre Elliott Trudeau International Airport (YUL) to Castries: what you need to know

  • Castries's timezone is UTC-4, which is the same as Montreal (the location of Montreal-Pierre Elliott Trudeau International Airport).

  • Give yourself plenty of time to catch your YUL to Castries flight. It's generally best to arrive two hours before international departures and an hour ahead for domestic flights.

  • Taking off during a peak period like school or public holidays? Expect longer lines at security and check-in. Play it safe and arrive up to four hours before international flights and two hours ahead of domestic departures.

  • The journey from central Montreal to YUL takes around 45 minutes by public transport. If you ride-share, drive or get a cab, you'll cover the 16 kilometres in 25 minutes or so, depending on traffic.

  • Want an easy start to your holiday? Stay near YUL. Whether you've booked an early flight from Montreal-Pierre Elliott Trudeau International Airport to Castries or just don't like being rushed, these hotels have you covered:

  • Of all flights leaving Montreal-Pierre Elliott Trudeau International Airport, 64.89% touch down on time at their destination.

  • YUL is located at 975 Romeo Vachon Street North.

How to find the cheapest flights from Montreal-Pierre Elliott Trudeau International Airport (YUL) to Castries

  • R 3,278 is the lowest price we've found for a one-way Montreal-Pierre Elliott Trudeau International Airport to Castries flight. A round-trip ticket right now is R 5,875. Depending on when and how early you book, these fares could change.

  • To find cheap flights from YUL to Castries, book as early as possible. Airlines generally offer the most competitive fares when tickets are first released.

  • If you're flexible with your travel dates, check out the 'Whole month' search tool. It'll give you the lowest price across each month when looking for your Montreal-Pierre Elliott Trudeau International Airport to Castries ticket.

  • There's no need to keep checking in to find out if fares have dropped when you create a Price Alert. We'll notify you as soon as there's an even bigger deal on cheap flights from YUL to Castries.

  • Find an affordable flight from Montreal-Pierre Elliott Trudeau International Airport to Castries with the help of our filters. Choose your preferred departure time, duration and airlines, then sort the results by 'Cheapest' to see the best deals.

Airports in Castries

George F. L. Charles Airport (SLU)

  • George F. L. Charles Airport (SLU) is around 3 kilometres from the centre of Castries. If you're catching a cab or a ride-share, the drive takes about 5 minutes.

  • When travelling on public transport, expect a journey time of about 40 minutes.

  • The last thing you want is a long journey to your hotel if you're landing late on a flight from Montreal-Pierre Elliott Trudeau International Airport to Castries. Book one of these accommodation options near SLU instead:

  • Travel at your own pace with a George F. L. Charles Airport rental car. Book your wheels from Drive A Matic, Final Rentals or Sixt and experience more of Castries and beyond.

  • For the lowest price, reserve your vehicle from George F. L. Charles Airport about one week in advance of your flight from YUL to Castries.

Hewanorra Airport (UVF)

  • The centre of Castries is around 56 kilometres from Hewanorra Airport (UVF). After your flight from Montreal-Pierre Elliott Trudeau International Airport to Castries has hit the runway and you've made your way out of the airport, expect a drive of around 1 hour 10 minutes.

  • Place the 'Do not disturb' sign on your door and rest at a hotel close to UVF. Here are a few options where you can check in after your YUL to Castries flight:

  • The quickest way to get to where you're going is with a Hewanorra Airport rental car. Pick up a set of wheels from Drive A Matic, Sixt or Final Rentals and set off in the blink of an eye.

  • Snap up the best price by securing your ride from UVF one week ahead of time. You can also expect to have a wider range of vehicles.

Best time to go to Castries

  • Before locking in your flights from Montreal-Pierre Elliott Trudeau International Airport to Castries, consider which time of year works best for you. High season in Castries offers a lively atmosphere and plenty of things to do, while the low season brings better deals on hotels and fewer crowds.

  • The warmest month in Castries is September, with temperatures ranging between 26ºC (79ºF) and 30ºC (86ºF). Lock in your Montreal-Pierre Elliott Trudeau International Airport to Castries flight ticket then if that's your definition of good weather.

  • If you like cooler conditions, search for a cheap ticket from YUL to Castries in February when temperatures average between 24ºC (75ºF) and 28ºC (82ºF).

More about Castries

  • When it comes to searching for somewhere to rest your head, you'll find the best places to stay in Castries right here. Explore these options after locking in your flight from Montreal-Pierre Elliott Trudeau International Airport to Castries:

  • There are so many things to see and do in this city it can be difficult to know where to begin. Morne Fortune, Derek Walcott Square and Immaculate Conception Church are leading attractions which should be on any good Castries itinerary.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.