Latest deals
When to book
FAQs
Price Alerts

Cheap flights from Montreal to Castries from C$ 1,030

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 10/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Early arrival? Instantly customize your results

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Montreal to Castries

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
7:20 p.m. - 7:00 p.m.
YUL
-
SLU
23h 40m
2 stops
Multiple Airlines Logo
3:45 p.m. - 12:25 a.m.
SLU
-
YUL
32h 40m
2 stops
C$ 1,030Multiple Airlines
Sat, 10 Oct - Wed, 14 Oct
Multiple Airlines Logo
5:45 p.m. - 7:00 p.m.
YUL
-
SLU
25h 15m
2 stops
Multiple Airlines Logo
3:45 p.m. - 12:25 a.m.
SLU
-
YUL
32h 40m
2 stops
C$ 1,071Multiple Airlines
Sat, 12 Sep - Sat, 19 Sep
Multiple Airlines Logo
9:55 p.m. - 7:00 p.m.
YUL
-
SLU
21h 05m
2 stops
Multiple Airlines Logo
6:00 p.m. - 2:08 p.m.
SLU
-
YUL
20h 08m
2 stops
C$ 1,162Multiple Airlines
Fri, 19 Jun - Fri, 26 Jun
Multiple Airlines Logo
6:15 p.m. - 10:10 p.m.
YUL
-
SLU
27h 55m
3 stops
Multiple Airlines Logo
6:00 p.m. - 2:08 p.m.
SLU
-
YUL
20h 08m
2 stops
C$ 1,187Multiple Airlines
Fri, 19 Jun - Fri, 26 Jun
Multiple Airlines Logo
6:30 p.m. - 7:00 p.m.
YUL
-
SLU
24h 30m
2 stops
Multiple Airlines Logo
12:35 p.m. - 1:45 p.m.
SLU
-
YUL
25h 10m
2 stops
C$ 1,223Multiple Airlines
Sat, 5 Sep - Mon, 14 Sep
Multiple Airlines Logo
9:55 p.m. - 10:10 p.m.
YUL
-
SLU
24h 15m
3 stops
Multiple Airlines Logo
3:45 p.m. - 10:22 a.m.
SLU
-
YUL
18h 37m
3 stops
C$ 1,300Multiple Airlines
Fri, 19 Jun - Fri, 26 Jun
Multiple Airlines Logo
9:30 p.m. - 7:00 p.m.
YUL
-
SLU
21h 30m
2 stops
Multiple Airlines Logo
7:10 p.m. - 5:54 p.m.
SLU
-
YUL
22h 44m
3 stops
C$ 1,325Multiple Airlines
Sat, 5 Sep - Mon, 14 Sep
Multiple Airlines Logo
7:00 a.m. - 7:00 p.m.
YUL
-
SLU
12h 00m
2 stops
Multiple Airlines Logo
12:35 p.m. - 7:45 a.m.
SLU
-
YUL
19h 10m
2 stops
C$ 1,340Multiple Airlines
Mon, 22 Jun - Fri, 3 Jul
Multiple Airlines Logo
8:40 a.m. - 7:00 p.m.
YUL
-
SLU
34h 20m
3 stops
Multiple Airlines Logo
7:10 p.m. - 5:54 p.m.
SLU
-
YUL
22h 44m
3 stops
C$ 1,415Multiple Airlines
Sat, 5 Sep - Mon, 14 Sep
Multiple Airlines Logo
7:00 a.m. - 7:00 p.m.
YUL
-
SLU
12h 00m
2 stops
Multiple Airlines Logo
12:35 p.m. - 9:22 a.m.
SLU
-
YUL
20h 47m
2 stops
C$ 1,499Multiple Airlines
Mon, 27 Jul - Sun, 2 Aug

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 26 May 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 10/10

7:20 p.m.-7:00 p.m.

2 stops23h 40m

Castries George F. L. Charle

Wed 14/10

3:45 p.m.-12:25 a.m.

2 stops32h 40m

C$ 1,030

MontrealCastries

YUL - SLU

YULSLU

Montreal Pierre Elliott Trudeau Intl

Sat 12/9

5:45 p.m.-7:00 p.m.

2 stops25h 15m

Castries George F. L. Charle

Sat 19/9

3:45 p.m.-12:25 a.m.

2 stops32h 40m

C$ 1,071

MontrealCastries

YUL - SLU

YULSLU

Montreal Pierre Elliott Trudeau Intl

Fri 19/6

9:55 p.m.-7:00 p.m.

2 stops21h 05m

Castries George F. L. Charle

Fri 26/6

6:00 p.m.-2:08 p.m.

2 stops20h 08m

C$ 1,162

MontrealCastries

YUL - SLU

YULSLU

Montreal Pierre Elliott Trudeau Intl

Fri 19/6

6:15 p.m.-10:10 p.m.

3 stops27h 55m

Castries George F. L. Charle

Fri 26/6

6:00 p.m.-2:08 p.m.

2 stops20h 08m

C$ 1,187

MontrealCastries

YUL - SLU

YULSLU

Montreal Pierre Elliott Trudeau Intl

Sat 5/9

6:30 p.m.-7:00 p.m.

2 stops24h 30m

Castries George F. L. Charle

Mon 14/9

12:35 p.m.-1:45 p.m.

2 stops25h 10m

C$ 1,223

MontrealCastries

YUL - SLU

YULSLU

Montreal Pierre Elliott Trudeau Intl

Fri 19/6

9:55 p.m.-10:10 p.m.

3 stops24h 15m

Castries George F. L. Charle

Fri 26/6

3:45 p.m.-10:22 a.m.

3 stops18h 37m

C$ 1,300

MontrealCastries

YUL - SLU

YULSLU

Montreal Pierre Elliott Trudeau Intl

Sat 5/9

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

2 stops21h 30m

Castries George F. L. Charle

Mon 14/9

7:10 p.m.-5:54 p.m.

3 stops22h 44m

C$ 1,325
Quickest round-trip

MontrealCastries

YUL - SLU

YULSLU

Montreal Pierre Elliott Trudeau Intl

Mon 22/6

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

2 stops12h 00m

Castries George F. L. Charle

Fri 3/7

12:35 p.m.-7:45 a.m.

2 stops19h 10m

C$ 1,340

MontrealCastries

YUL - SLU

YULSLU

Montreal Pierre Elliott Trudeau Intl

Sat 5/9

8:40 a.m.-7:00 p.m.

3 stops34h 20m

Castries George F. L. Charle

Mon 14/9

7:10 p.m.-5:54 p.m.

3 stops22h 44m

C$ 1,415

MontrealCastries

YUL - SLU

YULSLU

Montreal Pierre Elliott Trudeau Intl

Mon 27/7

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

2 stops12h 00m

Castries George F. L. Charle

Sun 2/8

12:35 p.m.-9:22 a.m.

2 stops20h 47m

C$ 1,499

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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

12h 00m

Direct flights

None
The fastest flight from Montreal to Castries takes 12h 00m
There are no direct flights from Montreal to Castries. There are no popular flight routes from Montreal to Castries.
Search flight deals

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 12h 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

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Thu 25/6
Thu 2/7
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Saint Lucia

Airports servicing Saint Lucia

Castries Hewanorra Airport