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Cheap flights from Montreal to Castries from C$ 566

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 4/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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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
5:00 a.m. - 7:00 p.m.
YUL
-
SLU
14h 00m
2 stops
Multiple Airlines Logo
12:35 p.m. - 5:26 p.m.
SLU
-
YUL
28h 51m
2 stops
C$ 1,066Multiple Airlines
Sat, 23 May - Mon, 25 May
Multiple Airlines Logo
4:40 p.m. - 2:35 p.m.
YUL
-
SLU
21h 55m
3 stops
Multiple Airlines Logo
6:00 p.m. - 11:51 a.m.
SLU
-
YUL
17h 51m
3 stops
C$ 1,072Multiple Airlines
Sat, 23 May - Fri, 29 May
Multiple Airlines Logo
8:00 p.m. - 2:35 p.m.
YUL
-
SLU
18h 35m
2 stops
Multiple Airlines Logo
6:00 p.m. - 5:26 p.m.
SLU
-
YUL
23h 26m
3 stops
C$ 1,073Multiple Airlines
Sat, 23 May - Fri, 29 May
Multiple Airlines Logo
7:15 p.m. - 2:35 p.m.
YUL
-
SLU
19h 20m
2 stops
Multiple Airlines Logo
7:10 p.m. - 2:08 p.m.
SLU
-
YUL
18h 58m
2 stops
C$ 1,131Multiple Airlines
Thu, 14 May - Tue, 19 May
Multiple Airlines Logo
8:00 p.m. - 2:35 p.m.
YUL
-
SLU
18h 35m
2 stops
Multiple Airlines Logo
6:00 p.m. - 10:36 a.m.
SLU
-
YUL
16h 36m
2 stops
C$ 1,155Multiple Airlines
Sat, 23 May - Fri, 29 May
Multiple Airlines Logo
7:05 a.m. - 5:05 p.m.
YUL
-
SLU
10h 00m
1 stop
Multiple Airlines Logo
6:00 p.m. - 10:36 a.m.
SLU
-
YUL
16h 36m
2 stops
C$ 1,162Multiple Airlines
Sat, 23 May - Fri, 29 May
Multiple Airlines Logo
8:30 p.m. - 7:00 p.m.
YUL
-
SLU
22h 30m
2 stops
Multiple Airlines Logo
12:35 p.m. - 9:21 a.m.
SLU
-
YUL
20h 46m
2 stops
C$ 1,214Multiple Airlines
Thu, 30 Apr - Tue, 5 May
Multiple Airlines Logo
9:30 p.m. - 7:00 p.m.
YUL
-
SLU
21h 30m
3 stops
Multiple Airlines Logo
7:10 p.m. - 10:20 a.m.
SLU
-
YUL
15h 10m
2 stops
C$ 1,227Multiple Airlines
Thu, 23 Apr - Tue, 28 Apr
Multiple Airlines Logo
10:40 a.m. - 6:25 p.m.
YUL
-
SLU
31h 45m
3 stops
Multiple Airlines Logo
12:35 p.m. - 12:25 a.m.
SLU
-
YUL
11h 50m
2 stops
C$ 1,252Multiple Airlines
Sun, 5 Jul - Sun, 19 Jul
Multiple Airlines Logo
11:10 a.m. - 6:25 p.m.
YUL
-
SLU
31h 15m
2 stops
Multiple Airlines Logo
12:35 p.m. - 12:25 a.m.
SLU
-
YUL
11h 50m
2 stops
C$ 1,253Multiple Airlines
Sun, 5 Jul - Sun, 19 Jul

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 11 April 2026.
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

Cheapest round-trip

MontrealCastries

YUL - SLU

YULSLU

Montreal Pierre Elliott Trudeau Intl

Sat 23/5

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

2 stops14h 00m

Castries George F. L. Charle

Mon 25/5

12:35 p.m.-5:26 p.m.

2 stops28h 51m

C$ 1,066

MontrealCastries

YUL - SLU

YULSLU

Montreal Pierre Elliott Trudeau Intl

Sat 23/5

4:40 p.m.-2:35 p.m.

3 stops21h 55m

Castries George F. L. Charle

Fri 29/5

6:00 p.m.-11:51 a.m.

3 stops17h 51m

C$ 1,072

MontrealCastries

YUL - SLU

YULSLU

Montreal Pierre Elliott Trudeau Intl

Sat 23/5

8:00 p.m.-2:35 p.m.

2 stops18h 35m

Castries George F. L. Charle

Fri 29/5

6:00 p.m.-5:26 p.m.

3 stops23h 26m

C$ 1,073

MontrealCastries

YUL - SLU

YULSLU

Montreal Pierre Elliott Trudeau Intl

Thu 14/5

7:15 p.m.-2:35 p.m.

2 stops19h 20m

Castries George F. L. Charle

Tue 19/5

7:10 p.m.-2:08 p.m.

2 stops18h 58m

C$ 1,131

MontrealCastries

YUL - SLU

YULSLU

Montreal Pierre Elliott Trudeau Intl

Sat 23/5

8:00 p.m.-2:35 p.m.

2 stops18h 35m

Castries George F. L. Charle

Fri 29/5

6:00 p.m.-10:36 a.m.

2 stops16h 36m

C$ 1,155
Quickest round-trip

MontrealCastries

YUL - SLU

YULSLU

Montreal Pierre Elliott Trudeau Intl

Sat 23/5

7:05 a.m.-5:05 p.m.

1 stop10h 00m

Castries George F. L. Charle

Fri 29/5

6:00 p.m.-10:36 a.m.

2 stops16h 36m

C$ 1,162

MontrealCastries

YUL - SLU

YULSLU

Montreal Pierre Elliott Trudeau Intl

Thu 30/4

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

2 stops22h 30m

Castries George F. L. Charle

Tue 5/5

12:35 p.m.-9:21 a.m.

2 stops20h 46m

C$ 1,214

MontrealCastries

YUL - SLU

YULSLU

Montreal Pierre Elliott Trudeau Intl

Thu 23/4

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

3 stops21h 30m

Castries George F. L. Charle

Tue 28/4

7:10 p.m.-10:20 a.m.

2 stops15h 10m

C$ 1,227

MontrealCastries

YUL - SLU

YULSLU

Montreal Pierre Elliott Trudeau Intl

Sun 5/7

10:40 a.m.-6:25 p.m.

3 stops31h 45m

Castries George F. L. Charle

Sun 19/7

12:35 p.m.-12:25 a.m.

2 stops11h 50m

C$ 1,252

MontrealCastries

YUL - SLU

YULSLU

Montreal Pierre Elliott Trudeau Intl

Sun 5/7

11:10 a.m.-6:25 p.m.

2 stops31h 15m

Castries George F. L. Charle

Sun 19/7

12:35 p.m.-12:25 a.m.

2 stops11h 50m

C$ 1,253

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first
1
2

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

Fastest flight time

14h 00m

Direct flights

None
The fastest flight from Montreal to Castries takes 14h 00m
There are no direct flights from Montreal to Castries. There are no popular flight routes from Montreal to Castries.
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Frequently asked questions about flying from Montreal to Castries

  • 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 14h 00m.

  • 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 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.

Frequently asked questions about flying from Montreal to Castries

  • How do I get Price Alerts for flights from Montreal to Castries?

    Price Alerts will notify you by email when the price for flights to Castries from Montreal decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.

  • How can I save money on flights from Montreal to Castries with momondo?

    Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore”. Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.

  • How does momondo find its flight prices?

    We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.

Travelling to a place near Castries?

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