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Cheap flights from Montreal to Castries from C$ 541

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Montreal to Castries departing on 14/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Montreal to Castries

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
7:10 p.m. - 3:25 p.m.YUL-SLU
20h 15m2 stops
Multiple Airlines Logo
6:20 p.m. - 11:35 a.m.SLU-YUL
18h 15m2 stops
C$ 1,091Multiple Airlines
Find Deal
Thu, 30 Oct - Sat, 8 Nov
Multiple Airlines Logo
11:10 a.m. - 3:25 p.m.YUL-SLU
28h 15m3 stops
Multiple Airlines Logo
6:20 p.m. - 11:35 a.m.SLU-YUL
18h 15m2 stops
C$ 1,096Multiple Airlines
Find Deal
Thu, 30 Oct - Sat, 8 Nov
Multiple Airlines Logo
6:45 a.m. - 6:05 p.m.YUL-SLU
11h 20m2 stops
Multiple Airlines Logo
12:35 p.m. - 12:38 a.m.SLU-YUL
12h 03m2 stops
C$ 1,333Multiple Airlines
Find Deal
Mon, 9 Mar - Fri, 13 Mar
Multiple Airlines Logo
7:00 a.m. - 5:35 p.m.YUL-SLU
9h 35m1 stop
Multiple Airlines Logo
12:35 p.m. - 12:43 a.m.SLU-YUL
13h 08m2 stops
C$ 1,415Multiple Airlines
Find Deal
Thu, 4 Dec - Mon, 8 Dec
Multiple Airlines Logo
6:30 p.m. - 12:05 p.m.YUL-SLU
16h 35m3 stops
Multiple Airlines Logo
5:00 a.m. - 11:35 a.m.SLU-YUL
31h 35m2 stops
C$ 1,491Multiple Airlines
Find Deal
Sun, 1 Feb - Sun, 8 Feb
Multiple Airlines Logo
7:00 a.m. - 5:35 p.m.YUL-SLU
9h 35m1 stop
Multiple Airlines Logo
9:10 a.m. - 12:43 a.m.SLU-YUL
16h 33m2 stops
C$ 1,525Multiple Airlines
Find Deal
Thu, 4 Dec - Wed, 10 Dec
Multiple Airlines Logo
7:00 a.m. - 5:35 p.m.YUL-SLU
9h 35m1 stop
Multiple Airlines Logo
5:00 a.m. - 12:43 a.m.SLU-YUL
20h 43m2 stops
C$ 1,612Multiple Airlines
Find Deal
Thu, 4 Dec - Sun, 7 Dec
Multiple Airlines Logo
7:00 a.m. - 5:35 p.m.YUL-SLU
9h 35m1 stop
Multiple Airlines Logo
1:55 p.m. - 6:10 p.m.SLU-YUL
29h 15m1 stop
C$ 1,617Multiple Airlines
Find Deal
Thu, 4 Dec - Sat, 6 Dec
Multiple Airlines Logo
9:30 a.m. - 7:00 p.m.YUL-SLU
8h 30m1 stop
Multiple Airlines Logo
10:25 a.m. - 11:35 a.m.SLU-YUL
26h 10m3 stops
C$ 1,649Multiple Airlines
Find Deal
Mon, 29 Dec - Wed, 7 Jan
Multiple Airlines Logo
10:30 p.m. - 9:30 a.m.YUL-SLU
34h 00m3 stops
Multiple Airlines Logo
10:25 a.m. - 11:35 a.m.SLU-YUL
26h 10m3 stops
C$ 1,676Multiple Airlines
Find Deal
Mon, 29 Dec - Wed, 7 Jan

momondo Fare Finder

 
Customize your flight search to find flights from Montreal to Castries that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 96,600 searches. Data last updated 2 October 2025.
Use the filters below to find and compare flights from Montreal to Castries that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

MontrealCastries

YUL - SLU

YULSLU

Montreal Pierre Elliott Trudeau Intl

Thu 30/10

7:10 p.m.-3:25 p.m.

2 stops20h 15m

Castries George F. L. Charle

Sat 8/11

6:20 p.m.-11:35 a.m.

2 stops18h 15m

C$ 1,091

MontrealCastries

YUL - SLU

YULSLU

Montreal Pierre Elliott Trudeau Intl

Thu 30/10

11:10 a.m.-3:25 p.m.

3 stops28h 15m

Castries George F. L. Charle

Sat 8/11

6:20 p.m.-11:35 a.m.

2 stops18h 15m

C$ 1,096

MontrealCastries

YUL - SLU

YULSLU

Montreal Pierre Elliott Trudeau Intl

Mon 9/3

6:45 a.m.-6:05 p.m.

2 stops11h 20m

Castries George F. L. Charle

Fri 13/3

12:35 p.m.-12:38 a.m.

2 stops12h 03m

C$ 1,333

MontrealCastries

YUL - SLU

YULSLU

Montreal Pierre Elliott Trudeau Intl

Thu 4/12

7:00 a.m.-5:35 p.m.

1 stop9h 35m

Castries George F. L. Charle

Mon 8/12

12:35 p.m.-12:43 a.m.

2 stops13h 08m

C$ 1,415

MontrealCastries

YUL - SLU

YULSLU

Montreal Pierre Elliott Trudeau Intl

Sun 1/2

6:30 p.m.-12:05 p.m.

3 stops16h 35m

Castries George F. L. Charle

Sun 8/2

5:00 a.m.-11:35 a.m.

2 stops31h 35m

C$ 1,491

MontrealCastries

YUL - SLU

YULSLU

Montreal Pierre Elliott Trudeau Intl

Thu 4/12

7:00 a.m.-5:35 p.m.

1 stop9h 35m

Castries George F. L. Charle

Wed 10/12

9:10 a.m.-12:43 a.m.

2 stops16h 33m

C$ 1,525

MontrealCastries

YUL - SLU

YULSLU

Montreal Pierre Elliott Trudeau Intl

Thu 4/12

7:00 a.m.-5:35 p.m.

1 stop9h 35m

Castries George F. L. Charle

Sun 7/12

5:00 a.m.-12:43 a.m.

2 stops20h 43m

C$ 1,612

MontrealCastries

YUL - SLU

YULSLU

Montreal Pierre Elliott Trudeau Intl

Thu 4/12

7:00 a.m.-5:35 p.m.

1 stop9h 35m

Castries George F. L. Charle

Sat 6/12

1:55 p.m.-6:10 p.m.

1 stop29h 15m

C$ 1,617

MontrealCastries

YUL - SLU

YULSLU

Montreal Pierre Elliott Trudeau Intl

Mon 29/12

9:30 a.m.-7:00 p.m.

1 stop8h 30m

Castries George F. L. Charle

Wed 7/1

10:25 a.m.-11:35 a.m.

3 stops26h 10m

C$ 1,649

MontrealCastries

YUL - SLU

YULSLU

Montreal Pierre Elliott Trudeau Intl

Mon 29/12

10:30 p.m.-9:30 a.m.

3 stops34h 00m

Castries George F. L. Charle

Wed 7/1

10:25 a.m.-11:35 a.m.

3 stops26h 10m

C$ 1,676

Flights are sorted by cheapest round-trip flights first.

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How to get the cheapest flight ticket from Montreal to Castries

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Castries?

According to our data, Monday is the cheapest day to fly to Castries from Montreal. The lowest ticket price found for a Monday departure recently was C$ 858. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to Castries on Saturday is C$ 1,137.

What is the cheapest time of day to depart on your flight to Castries?

The cheapest time of day to fly to Castries is in the evening when flights can be purchased for as low as C$ 722. In the afternoon is when there is more demand to fly to Castries, so prices are often more expensive at around C$ 1,246 per ticket.

When to book flights from Montreal to Castries

Are you open to changing your travel dates? Check out the ideal times to fly from Montreal to Castries according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Montreal to Castries (YMQ to SLU) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Montreal to Castries

Direct flights

None
There are no direct flights from Montreal to Castries. There are no popular flight routes from Montreal to Castries.
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  • How far is Montreal to Castries George F. L. Charle by plane?

    Montreal and Castries George F. L. Charle are 3692.9 km apart from one another. A reasonable flight in good conditions will take 8h 30m.

  • When did momondo last update prices for flights from Montreal to Castries George F. L. Charle Airport?

    Prices for flights from Montreal to Castries George F. L. Charle Airport are updated daily.

  • How many operators does momondo search for flights from Montreal to Castries George F. L. Charle Airport?

  • How old do you have to be to fly from Montreal to Castries George F. L. Charle Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Montreal to Castries George F. L. Charle Airport.

  • What documentation or ID do you need to fly to Castries George F. L. Charle Airport?

    The travel and health documents you'll need for your trip to Castries George F. L. Charle Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Castries George F. L. Charle Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Montreal to Castries

Compare and see reviews for airlines that fly from Montreal to Castries with momondo
Airline
Rating
Free Cancellation
Price
Air CanadaPriceFrom C$ 536Free CancellationRating
7.1
10,000 reviews
Search Air Canada flights

Travelling to a place near Castries?

Book flights to Castries if you plan to visit one of these locations
Gros Islet
Rodney Bay
Marigot Bay

Why use momondo?

Why should I use momondo to find a flight deal from Montreal to Castries?

Finding the right flight to Castries from Montreal is quick and easy when you have a range of options in front of you, from reputable agents and recognizable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Castries quick and easy, saving you time and money.

Can I find flights from Montreal to Castries with flexible booking policies on momondo?

momondo does allow users to show only those flights to Castries from Montreal which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Montreal to Castries?

Once all potential Montreal to Castries flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Montreal to Castries right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Montreal to Castries flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Castries trip

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Find better results for your trip to Saint Lucia

Airports servicing Saint Lucia

Castries Hewanorra Airport