C$213 Cheap Flights from Montreal (YMQA) to Castries (SLUA)

Compare Montreal to Castries flight deals

Find the cheapest month or even day of the year to fly to Castries

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Flight deals from Montreal to Castries

Looking for a cheap last-minute deal or the best return flight from Montreal to Castries? If you want to travel next month, return fares start from C$584. Find the lowest prices on one-way and return tickets right here.

Castries.C$213 per passenger.Departing Wed., May 13.One-way flight with WestJet.Outbound indirect flight with WestJet, departs from Montreal Pierre Elliott Trudeau on Wed., May 13, arriving in St Lucia Hewanorra.Price includes taxes and charges.From C$213, select.

Castries.C$216 per passenger.Departing Wed., Jun. 10.One-way flight with WestJet.Outbound indirect flight with WestJet, departs from Montreal Pierre Elliott Trudeau on Wed., Jun. 10, arriving in St Lucia Hewanorra.Price includes taxes and charges.From C$216, select.

Castries.C$250 per passenger.Departing Thu., Apr. 23.One-way flight with Air Canada.Outbound indirect flight with Air Canada, departs from Montreal Pierre Elliott Trudeau on Thu., Apr. 23, arriving in St Lucia Hewanorra.Price includes taxes and charges.From C$250, select.

Castries.C$317 per passenger.Departing Tue., Dec. 1.One-way flight with Air Canada.Outbound indirect flight with Air Canada, departs from Montreal Pierre Elliott Trudeau on Tue., Dec. 1, arriving in St Lucia Hewanorra.Price includes taxes and charges.From C$317, select.

Castries.C$319 per passenger.Departing Fri., Jul. 3.One-way flight with Air Canada.Outbound indirect flight with Air Canada, departs from Montreal Pierre Elliott Trudeau on Fri., Jul. 3, arriving in St Lucia Hewanorra.Price includes taxes and charges.From C$319, select.

Castries.C$392 per passenger.Departing Fri., Nov. 13.One-way flight with Air Canada.Outbound indirect flight with Air Canada, departs from Montreal Pierre Elliott Trudeau on Fri., Nov. 13, arriving in St Lucia Hewanorra.Price includes taxes and charges.From C$392, select.

Castries.C$407 per passenger.Departing Sun., Aug. 2.One-way flight with Air Canada.Outbound indirect flight with Air Canada, departs from Montreal Pierre Elliott Trudeau on Sun., Aug. 2, arriving in St Lucia Hewanorra.Price includes taxes and charges.From C$407, select.

Castries.C$585 per passenger.Departing Mon., Mar. 1.One-way flight with Delta.Outbound indirect flight with Delta, departs from Montreal Pierre Elliott Trudeau on Mon., Mar. 1, arriving in St Lucia Hewanorra.Price includes taxes and charges.From C$585, select.

Find the cheapest month to fly from Montreal to Castries

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

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Alternative Montreal to Castries routes

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

St Lucia Vigie

1km from central Castries

Closest

from C$468

Search flights

St Lucia Hewanorra

31km from central Castries

Cheapest

from C$213

Search flights

Montreal to Castries: Flight information

The things to know before you go.

Cheapest flight found	C$213
Cheapest month to fly	May

Finding cheap flights from Montreal to Castries: Frequently asked questions

How many airports are there in Castries?

There are 2 airports in Castries: St Lucia Vigie and St Lucia Hewanorra.

How much are return flights from Montreal to Castries?

The best price we found for a return flight from Montreal to Castries is C$460. 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.

Which airlines fly direct from Montreal to Castries?

Currently, there are no airlines that fly direct from Montreal to Castries. But we found flights with one or more stops from C$460.

How many flights are there a week from Montreal to Castries?

As of April 2026, there are no flights flying from Montreal to Castries.

When is the cheapest time to fly from Montreal to Castries?

The cheapest month to fly from Montreal to Castries is usually June.

Which is the cheapest airport to fly into in Castries?

If you're flying from Montreal, 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 C$460.

Which upcoming date is cheapest to fly from Montreal to Castries on?

After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Montreal to Castries on Wednesday, June 3, 2026.

Can I get a direct flight from Montreal to Castries?

No airlines currently offer direct flights between Montreal and Castries. Most routes have one or more stops.

How can I get the best flight deal from Montreal to Castries?

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.

When is the best time to book flights to Castries?

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.

What’s the weather like in Castries?

In April, the average temperature is usually around 27°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.

Which is the cheapest airline to fly from Montreal to Castries with?

The cheapest airline that flies to Castries is WestJet .

Travelling from Montreal to Castries: what you need to know

Montreal-Pierre Elliott Trudeau International Airport (YUL) is Montreal's main airport. Explore your options for booking a flight from Montreal to Castries taking off from here.
Hewanorra Airport (UVF) and George F. L. Charles Airport (SLU) are Castries's primary hubs.
Leave enough time to catch your flight from Montreal to Castries. Generally, it's best to arrive two hours before international departures and an hour ahead for domestic flights.
You can expect longer lines in popular months such as August and other peak periods. Arriving up to four hours ahead of international flights and two hours for a domestic departure will help ensure a smooth travel experience.
You can enter Saint Lucia for tourism purposes without a visa if you hold a passport from Canada. But before booking your cheap flight from Montreal to Castries, make sure you're up to date with the latest guidelines. Visa rules can change, and you may need some travel documentation if your trip is for business or other reasons.

Flying from Montreal

Montreal-Pierre Elliott Trudeau International Airport (YUL)

Located around 26 kilometres from central Montreal, YUL can be reached in approximately 25 minutes by car (depending on traffic). The journey by public transport will take roughly 2 hours and 15 minutes.
Looking for a convenient hotel near Montreal-Pierre Elliott Trudeau International Airport? If you're catching an early flight from Montreal to Castries, these accommodation options will put you moments from your departure gate:

Arriving in Castries

Hewanorra Airport (UVF)

Hewanorra Airport (UVF) to central Castries is approximately 56 kilometres. It takes around 1 hour and 9 minutes to reach the centre driving.
The last thing you need is a long journey to your hotel if you're arriving on a late flight from Montreal to Castries. Stay at one of these accommodation options near UVF instead:

George F. L. Charles Airport (SLU)

Central Castries is around 3 kilometres from George F. L. Charles Airport (SLU). Once your flight from Montreal to Castries has touched down and you've made your way through the terminal, the drive should be around 6 minutes.
If you're travelling on public transport, it'll take approximately 40 minutes.
After your flight from Montreal to Castries, kick back at a hotel close to SLU. These are some great options that'll help you get into relaxation mode:

How to find the cheapest flights from Montreal to Castries

The lowest price we've seen for a one-way ticket from Montreal to Castries is C$213. For a return flight on this route, the best price is C$460. Depending on how early you book and the availability, these fares could change.
Don't leave everything to the last moment. You're more likely to get cheap flights from Montreal to Castries if you book in advance. Airlines often have some great early bird deals.
Getting cheap flights from Montreal to Castries is easier if you can be flexible with your travel plans. Try using the 'Whole month' search function to see the lowest fares across every month and snap up a great deal.
Log into your online account or use the app to create a Price Alert. We'll notify you straight away if there's a better deal on this route. It's easy to do, and it'll save you the hassle of searching for cheap flights from Montreal to Castries every day.
Play around with filters to find your ideal journey. To see the 'Cheapest,' 'Fastest' or 'Best' flights from Montreal to Castries, use the 'Sort by' function. You can also filter results by departure and arrival times, airline, and number of stops.

Best time to go to Castries

It's time to plan your trip dates for your flight from Montreal to Castries. July is the most popular month to travel to Castries. If you prefer a quieter atmosphere, go in May.
Book your flight from Montreal to Castries for September if you'd like to visit the city during its warmest month. Expect temperatures in Castries to range from 26ºC to 30ºC.
Look for cheap flights from Montreal to Castries in February if you want to travel in cooler conditions. Temperatures are at their lowest then, ranging between 24ºC and 28ºC on average.

More about Castries

When it comes to searching for somewhere to lay your head, you'll find the top stays in Castries right here. Check out these options as soon as you've locked in your flight from Montreal to Castries:
There are so many things to discover in this city it can be tricky to know where to start. Derek Walcott Square, Morne Fortune and Immaculate Conception Church are highlights which should feature on any well-planned Castries itinerary.

Complete your Castries trip with a car rental

Finding you a cheap flight from Montreal to Castries isn't the only thing we're good at. Check out our car rentals in Castries and explore on your own terms. We search for deals from trusted car rental companies and put them all in one place. You can instantly compare rates and then book with no fees.