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Cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to Castries from C$ 1,169

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 23/12. Fares are subject to change and may not be available on all flights or dates of travel.
YUL — SLU
11 Jan — 18 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Pierre Elliott Trudeau Intl to Castries

Enter your travel dates to find the best prices.

Cheapest flights from Pierre Elliott Trudeau Intl to Castries
Explore the most affordable flight options available from Pierre Elliott Trudeau Intl to Castries. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 December 2025.

Fri 26/127:00 a.m.YUL - SLU
2 stops10h 25mMultiple Airlines
Fri 2/14:00 p.m.SLU - YUL
1 stop27h 50mMultiple Airlines
Deal found 10/12C$ 2,828

Find flight deals from Pierre Elliott Trudeau Intl to Castries

Discover tips and strategies to find the most affordable flight options for your journey from Pierre Elliott Trudeau Intl (YUL) to Castries (SLU). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 12 December 2025.

Round-trip from

C$ 1,204
18/1-24/1
  • 18/1-24/1
  • 4 total stops
  • 37h 40m total
  • Montreal to Castries
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Pierre Elliott Trudeau Intl 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, Cheapflights users made 629,999 searches. Data last updated 12 December 2025.
Use the filters below to find and compare flights from Montreal Pierre Elliott Trudeau Intl Airport to Castries that are best for you.

Fly from

Pierre Elliott Trudeau Intl

Fly to

Castries

Route

Depart

Return

Price

MontrealCastries

YUL - SLU

YULSLU

Montreal Pierre Elliott Trudeau Intl

Sun 18/1

7:10 p.m.-3:35 p.m.

2 stops19h 25m

Castries George F. L. Charle

Sat 24/1

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

2 stops18h 15m

C$ 1,204

MontrealCastries

YUL - SLU

YULSLU

Montreal Pierre Elliott Trudeau Intl

Tue 27/1

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

2 stops23h 20m

Castries George F. L. Charle

Thu 29/1

3:20 p.m.-11:35 a.m.

3 stops21h 15m

C$ 1,375

MontrealCastries

YUL - SLU

YULSLU

Montreal Pierre Elliott Trudeau Intl

Wed 11/2

6:45 a.m.-12:10 p.m.

2 stops28h 25m

Castries George F. L. Charle

Mon 16/2

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

2 stops13h 03m

C$ 1,511

MontrealCastries

YUL - SLU

YULSLU

Montreal Pierre Elliott Trudeau Intl

Sun 4/1

7:00 a.m.-6:25 p.m.

1 stop10h 25m

Castries George F. L. Charle

Tue 13/1

3:45 p.m.-12:35 a.m.

2 stops33h 50m

C$ 1,794

MontrealCastries

YUL - SLU

YULSLU

Montreal Pierre Elliott Trudeau Intl

Fri 26/12

7:00 a.m.-6:25 p.m.

2 stops10h 25m

Castries George F. L. Charle

Fri 2/1

4:00 p.m.-6:50 p.m.

1 stop27h 50m

C$ 2,828

MontrealCastries

YUL - SLU

YULSLU

Montreal Pierre Elliott Trudeau Intl

Tue 23/12

10:15 a.m.-9:30 a.m.

2 stops22h 15m

C$ 1,169

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/12

Best time to book a flight from Pierre Elliott Trudeau Intl to Castries

Have a flexible travel schedule? Discover the best time to fly to Castries from Pierre Elliott Trudeau Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Montreal Pierre Elliott Trudeau Intl Airport to Castries

What is the cheapest month to book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Castries?

Currently, February is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Castries (average of C$ 193). Flying from Montreal Pierre Elliott Trudeau Intl Airport to Castries in October is currently the most expensive (average of C$ 1,149). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Castries

Get insights into the airlines that provide service to Castries. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Castries. Reviews last updated 12 December 2025.
Check out reviews from past customers who have flown with Air Canada from Montreal Pierre Elliott Trudeau Intl Airport to Castries to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Canada
7.1
Good
10,516 reviews
Check prices

Boarding

7.3

Food

6.3

Entertainment

6.8

Crew

7.8

Comfort

7.1

Overall

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

YYZ - LAS

It's was great and the crew are very nice, captain has a smooth land on the runway 👍
Air Canada
7.1
Good
10,516 reviews
Air Canada
7.1
Good
10,516 reviews
Check prices

Boarding

7.3

Food

6.3

Entertainment

6.8

Crew

7.8

Comfort

7.1

Overall

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

YYZ - LAS

It's was great and the crew are very nice, captain has a smooth land on the runway 👍

Related info for your journey

Find useful and relevant information for your journey from Pierre Elliott Trudeau Intl to Castries. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Castries from Montreal Pierre Elliott Trudeau Intl?

    For a flight from Montreal Pierre Elliott Trudeau Intl to Castries, you will be flying into George F. L. Charle. Castries George F. L. Charle (SLU) is just 1.2 km from the centre of the city. George F. L. Charle is the only Castries airport and it handles 0 inbound flights from Montreal Pierre Elliott Trudeau Intl per day. 1 airline has flights to Castries George F. L. Charle from Montreal Pierre Elliott Trudeau Intl on a regular basis.

  • Can I find deals for flights from Pierre Elliott Trudeau Intl to Castries that include hotel bookings?

    Yes. In addition to deals on Pierre Elliott Trudeau Intl to Castries flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Pierre Elliott Trudeau Intl to Castries?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Pierre Elliott Trudeau Intl to Castries.

  • Can I find deals for business class flights from Pierre Elliott Trudeau Intl to Castries?

    Yes. Cheapflights offers flight deals from Pierre Elliott Trudeau Intl to Castries by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Castries?

    Currently, February is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Castries (average of C$ 193). Flying from Montreal Pierre Elliott Trudeau Intl Airport to Castries in October is currently the most expensive (average of C$ 1,149). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Castries?

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

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Alternative routes for Pierre Elliott Trudeau Intl to Castries

See prices for flight routes from nearby airports that may be better suited for you.
Pierre Elliott Trudeau Intl to Castries flights

Top airline flying from Pierre Elliott Trudeau Intl to Castries

Discover the top airline that operate flights from Pierre Elliott Trudeau Intl to Castries. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 12 December 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 530AverageC$ 812FlexibilityNo cancel feeOn-time67%
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How does Cheapflights help users find flights from Pierre Elliott Trudeau Intl to Castries?

Cheapflights makes it easy to find Pierre Elliott Trudeau Intl to Castries flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Pierre Elliott Trudeau Intl to Castries?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Castries from Pierre Elliott Trudeau Intl.

Can Cheapflights find flights from Pierre Elliott Trudeau Intl to Castries with no change fees?

Certainly. Search results for flights to Castries from Pierre Elliott Trudeau Intl shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Pierre Elliott Trudeau Intl to Castries become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Castries from Pierre Elliott Trudeau Intl today and book when prices fit your budget.

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