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Cheap flights from Montreal to Castries from C$ 997

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Montreal to Castries departing on 5/10. 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 (YMQ-SLU)

Cheap round-trip flights

Logo
6:35 p.m. - 3:50 p.m.YUL-SLU
21h 15m3 stops
Logo
10:15 a.m. - 5:55 p.m.SLU-YUL
31h 40m2 stops
C$ 997
Find Deal
Sun, 5 Oct - Wed, 15 Oct
Logo
6:45 a.m. - 7:00 p.m.YUL-SLU
12h 15m2 stops
Logo
9:10 a.m. - 12:27 a.m.SLU-YUL
15h 17m2 stops
C$ 1,019
Find Deal
Sat, 18 Oct - Sat, 25 Oct
Logo
7:00 a.m. - 5:35 p.m.YUL-SLU
10h 35m1 stop
Logo
12:35 p.m. - 12:33 a.m.SLU-YUL
12h 58m2 stops
C$ 1,339
Find Deal
Thu, 30 Oct - Sat, 8 Nov
Logo
7:00 a.m. - 5:35 p.m.YUL-SLU
10h 35m1 stop
Logo
12:35 p.m. - 9:40 a.m.SLU-YUL
22h 05m2 stops
C$ 1,396
Find Deal
Thu, 30 Oct - Mon, 3 Nov
Logo
7:00 a.m. - 5:35 p.m.YUL-SLU
10h 35m1 stop
Logo
1:55 p.m. - 6:10 p.m.SLU-YUL
29h 15m1 stop
C$ 1,492
Find Deal
Thu, 30 Oct - Sat, 8 Nov
Logo
8:00 p.m. - 10:10 p.m.YUL-SLU
26h 10m3 stops
Logo
4:35 p.m. - 10:32 a.m.SLU-YUL
17h 57m2 stops
C$ 1,593
Find Deal
Fri, 19 Sep - Mon, 29 Sep
Logo
7:10 p.m. - 11:30 a.m.YUL-SLU
16h 20m2 stops
Logo
4:35 p.m. - 11:35 a.m.SLU-YUL
20h 00m2 stops
C$ 1,622
Find Deal
Thu, 30 Oct - Mon, 3 Nov
Logo
7:10 p.m. - 11:30 a.m.YUL-SLU
16h 20m2 stops
Logo
6:20 p.m. - 11:35 a.m.SLU-YUL
18h 15m2 stops
C$ 1,755
Find Deal
Thu, 30 Oct - Sat, 8 Nov
Air Caraïbes Logo
11:00 p.m. - 9:15 p.m.YUL-SLU
46h 15m2 stops
Air Caraïbes Logo
7:30 a.m. - 9:00 p.m.SLU-YUL
37h 30m2 stops
C$ 2,081Air Caraïbes
Find Deal
Fri, 17 Oct - Sat, 25 Oct
Air Caraïbes Logo
9:40 p.m. - 9:15 p.m.YUL-SLU
46h 35m2 stops
Air Caraïbes Logo
7:30 a.m. - 8:00 p.m.SLU-YUL
37h 30m2 stops
C$ 2,207Air Caraïbes
Find Deal
Tue, 30 Dec - Sat, 10 Jan

Air Caraïbes flights from Montreal to Castries

Our best Air Caraïbes deals on Montreal to Castries flight tickets
Air Caraïbes
17 Oct
YUL11:00 p.m.Montreal Pierre Elliott Trudeau Intl
46h 15m
2 stops
SLU9:15 p.m.Castries George F. L. Charle
25 Oct
SLU7:30 a.m.Castries George F. L. Charle
37h 30m
2 stops
YUL9:00 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 2,081
Find similar
Air Caraïbes
30 Dec
YUL9:40 p.m.Montreal Pierre Elliott Trudeau Intl
46h 35m
2 stops
SLU9:15 p.m.Castries George F. L. Charle
10 Jan
SLU7:30 a.m.Castries George F. L. Charle
37h 30m
2 stops
YUL8:00 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 2,207
Find similar
Air Caraïbes
31 Dec
YUL10:00 p.m.Montreal Pierre Elliott Trudeau Intl
63h 45m
2 stops
SLU2:45 p.m.Castries George F. L. Charle
10 Jan
SLU7:30 a.m.Castries George F. L. Charle
37h 30m
2 stops
YUL8:00 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 2,295
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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 14 August 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

Sun 5/10

6:35 p.m.-3:50 p.m.

3 stops21h 15m

Castries George F. L. Charle

Wed 15/10

10:15 a.m.-5:55 p.m.

2 stops31h 40m

C$ 997

MontrealCastries

YUL - SLU

YULSLU

Montreal Pierre Elliott Trudeau Intl

Sat 18/10

6:45 a.m.-7:00 p.m.

2 stops12h 15m

Castries George F. L. Charle

Sat 25/10

9:10 a.m.-12:27 a.m.

2 stops15h 17m

C$ 1,019

MontrealCastries

YUL - SLU

YULSLU

Montreal Pierre Elliott Trudeau Intl

Thu 30/10

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

1 stop10h 35m

Castries George F. L. Charle

Sat 8/11

12:35 p.m.-12:33 a.m.

2 stops12h 58m

C$ 1,339

MontrealCastries

YUL - SLU

YULSLU

Montreal Pierre Elliott Trudeau Intl

Thu 30/10

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

1 stop10h 35m

Castries George F. L. Charle

Mon 3/11

12:35 p.m.-9:40 a.m.

2 stops22h 05m

C$ 1,396

MontrealCastries

YUL - SLU

YULSLU

Montreal Pierre Elliott Trudeau Intl

Thu 30/10

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

1 stop10h 35m

Castries George F. L. Charle

Sat 8/11

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

1 stop29h 15m

C$ 1,492

MontrealCastries

YUL - SLU

YULSLU

Montreal Pierre Elliott Trudeau Intl

Fri 19/9

8:00 p.m.-10:10 p.m.

3 stops26h 10m

Castries George F. L. Charle

Mon 29/9

4:35 p.m.-10:32 a.m.

2 stops17h 57m

C$ 1,593

MontrealCastries

YUL - SLU

YULSLU

Montreal Pierre Elliott Trudeau Intl

Thu 30/10

7:10 p.m.-11:30 a.m.

2 stops16h 20m

Castries George F. L. Charle

Mon 3/11

4:35 p.m.-11:35 a.m.

2 stops20h 00m

C$ 1,622

MontrealCastries

YUL - SLU

YULSLU

Montreal Pierre Elliott Trudeau Intl

Thu 30/10

7:10 p.m.-11:30 a.m.

2 stops16h 20m

Castries George F. L. Charle

Sat 8/11

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

2 stops18h 15m

C$ 1,755

MontrealCastries

YUL - SLU

YULSLU

Montreal Pierre Elliott Trudeau Intl

Fri 17/10

11:00 p.m.-9:15 p.m.

2 stops46h 15m

Castries George F. L. Charle

Sat 25/10

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

2 stops37h 30m

C$ 2,081

MontrealCastries

YUL - SLU

YULSLU

Montreal Pierre Elliott Trudeau Intl

Tue 30/12

9:40 p.m.-9:15 p.m.

2 stops46h 35m

Castries George F. L. Charle

Sat 10/1

7:30 a.m.-8:00 p.m.

2 stops37h 30m

C$ 2,207

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest 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$ 848. 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$ 1,123.

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$ 714. In the afternoon is when there is more demand to fly to Castries, so prices are often more expensive at around C$ 1,231 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

Best price found

C$ 997

Fastest flight time

9h 35m

Direct flights

None

Airports in Castries

1 airport
The best flight deal from Montreal to Castries found on momondo in the last 72 hours is C$ 997
The fastest flight from Montreal to Castries takes 9h 35m
There are no direct flights from Montreal to Castries. Popular non-direct route for this connection is Montreal Pierre Elliott Trudeau Intl Airport - Castries George F. L. Charle Airport.
There is 1 airport near Castries: Castries George F. L. Charle (SLU)
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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 9h 35m.

  • 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$ 529Free CancellationRating
7.1
9,949 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.

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Castries Hewanorra Airport