Which airports can I use when flying from Montreal Pierre Elliott Trudeau Intl Airport to Castries?

Flights from Montreal Pierre Elliott Trudeau Intl Airport to Castries usually depart from Montreal Pierre Elliott Trudeau Intl (YUL) and arrive at Castries George F. L. Charle (SLU).

Which cabin classes can I book on flights from Montreal Pierre Elliott Trudeau Intl Airport to Castries?

Only Economy Class is available on flights from Montreal Pierre Elliott Trudeau Intl Airport to Castries.

Which airports do connecting flights from Montreal Pierre Elliott Trudeau Intl Airport to Castries pass through?

Most connecting flights from Montreal Pierre Elliott Trudeau Intl Airport to Castries pass through Bridgetown Grantley Adams Intl (BGI), which handles 100% of one-stop traffic on this route.

Can I save money by using flexible dates for flights from Montreal Pierre Elliott Trudeau Intl Airport to Castries?

Yes. Flexible dates can save you up to 22% on flights from Montreal Pierre Elliott Trudeau Intl Airport to Castries. Sunday is the cheapest departure day at C$ 987 round-trip on average, while Friday is the most expensive at C$ 1,251, a difference of C$ 264. Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

Do I need a passport to fly from Montreal Pierre Elliott Trudeau Intl Airport to Castries?

Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

What car rental options are available at Castries George F. L. Charle Airport (SLU)?

Castries George F. L. Charle Airport (SLU) hosts 5 major car rental companies, with daily rates starting from around C$ 20 for economy cars. Top options include: • Ace • Drive A Matic • Final Rentals • Sixt • FlexWays

How much should I expect to pay for a Montreal Pierre Elliott Trudeau Intl Airport to Castries flight?

Round-trip flights from Montreal Pierre Elliott Trudeau Intl Airport to Castries range from C$ 1,023 to C$ 1,250, with an average of C$ 1,098 over the past 12 months. Anything below C$ 1,023 counts as a good deal.

What is the cheapest layover airport when flying from Montreal Pierre Elliott Trudeau Intl Airport to Castries?

Flights via Bridgetown Grantley Adams Intl (BGI) offer the most affordable fares, with an average round-trip price of C$ 1,092. Based on KAYAK data over the past 3 months.

When flying from Montreal Pierre Elliott Trudeau Intl Airport to Castries, which airport offers the shortest layover?

Bridgetown Grantley Adams Intl (BGI) had the shortest average connection time for Montreal Pierre Elliott Trudeau Intl Airport to Castries layovers at 6h 35m over the past three months.

Cheap Flights from Montreal to Castries | KAYAK

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Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Cheapest round-trip

C$ 929

Typical prices: C$ 1,023-C$ 1,250

Multiple Airlines

Fri 14/12Fri 21/12

YUL - SLU • 1 stop

Cheapest one-way flights

C$ 433

Typical prices: C$ 501-C$ 501

Multiple Airlines

Mon 3/12

YUL - SLU • 1 stop

Direct flights

Not available

There are currently no direct flights between Montreal Pierre Elliott Trudeau Intl Airport and Castries. You'll need to take a connecting flight to reach the destination.

Insights

When to travel

October

Cheapest • 7% price drop

December

Most popular

Good to know

Start a new search

KAYAK searches hundreds of sites at once to find you the best travel deals.

We hope you enjoy your trip to Castries!

Flight Deals

Cheap Flights from Montreal to Castries (YUL-SLU)

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Recent round-trip flight deals from Montreal to Castries

Mon, 14 Dec - Mon, 21 Dec

8:15 a.m. - 3:15 p.m.YUL Montreal Pierre Elliott Trudeau Intl-SLU Castries George F. L. Charle

30h 00m1 stop Bridgetown Grantley Adams Intl

12:35 p.m. - 8:35 p.m.SLU Castries George F. L. Charle-YUL Montreal Pierre Elliott Trudeau Intl

9h 00m1 stop Bridgetown Grantley Adams Intl

C$ 929Multiple Airlines

1 day ago

Mon, 14 Dec - Mon, 21 Dec

8:15 a.m. - 12:05 p.m.YUL Montreal Pierre Elliott Trudeau Intl-SLU Castries George F. L. Charle

26h 50m1 stop Bridgetown Grantley Adams Intl

12:35 p.m. - 12:25 a.m.SLU Castries George F. L. Charle-YUL Montreal Pierre Elliott Trudeau Intl

12h 50m2 stops Bridgetown Grantley Adams Intl Toronto Pearson Intl

C$ 932Multiple Airlines

1 day ago

Sat, 21 Nov - Sat, 28 Nov

9:20 a.m. - 7:00 p.m.YUL Montreal Pierre Elliott Trudeau Intl-SLU Castries George F. L. Charle

8h 40m1 stop Bridgetown Grantley Adams Intl

12:35 p.m. - 9:40 p.m.SLU Castries George F. L. Charle-YUL Montreal Pierre Elliott Trudeau Intl

10h 05m1 stop Bridgetown Grantley Adams Intl

C$ 968Multiple Airlines

3+ days ago

Sun, 22 Nov - Sat, 28 Nov

9:20 a.m. - 7:00 p.m.YUL Montreal Pierre Elliott Trudeau Intl-SLU Castries George F. L. Charle

8h 40m1 stop Bridgetown Grantley Adams Intl

12:35 p.m. - 9:40 p.m.SLU Castries George F. L. Charle-YUL Montreal Pierre Elliott Trudeau Intl

10h 05m1 stop Bridgetown Grantley Adams Intl

C$ 971Multiple Airlines

3+ days ago

Wed, 10 Feb - Mon, 15 Feb

9:20 a.m. - 7:00 p.m.YUL Montreal Pierre Elliott Trudeau Intl-SLU Castries George F. L. Charle

8h 40m1 stop Bridgetown Grantley Adams Intl

12:35 p.m. - 9:40 p.m.SLU Castries George F. L. Charle-YUL Montreal Pierre Elliott Trudeau Intl

10h 05m1 stop Bridgetown Grantley Adams Intl

C$ 980Multiple Airlines

3+ days ago

Sat, 21 Nov - Sun, 29 Nov

9:20 a.m. - 7:00 p.m.YUL Montreal Pierre Elliott Trudeau Intl-SLU Castries George F. L. Charle

8h 40m1 stop Bridgetown Grantley Adams Intl

9:10 a.m. - 9:40 p.m.SLU Castries George F. L. Charle-YUL Montreal Pierre Elliott Trudeau Intl

13h 30m1 stop Bridgetown Grantley Adams Intl

C$ 989Multiple Airlines

3+ days ago

Mon, 16 Nov - Mon, 23 Nov

7:10 p.m. - 7:00 p.m.YUL Montreal Pierre Elliott Trudeau Intl-SLU Castries George F. L. Charle

22h 50m2 stops Toronto Pearson Intl Bridgetown Grantley Adams Intl

12:35 p.m. - 7:50 a.m.SLU Castries George F. L. Charle-YUL Montreal Pierre Elliott Trudeau Intl

20h 15m2 stops Bridgetown Grantley Adams Intl Toronto Pearson Intl

C$ 992Multiple Airlines

3+ days ago

Sun, 22 Nov - Sun, 29 Nov

9:20 a.m. - 7:00 p.m.YUL Montreal Pierre Elliott Trudeau Intl-SLU Castries George F. L. Charle

8h 40m1 stop Bridgetown Grantley Adams Intl

9:10 a.m. - 9:40 p.m.SLU Castries George F. L. Charle-YUL Montreal Pierre Elliott Trudeau Intl

13h 30m1 stop Bridgetown Grantley Adams Intl

C$ 992Multiple Airlines

3+ days ago

Mon, 7 Dec - Wed, 16 Dec

9:20 p.m. - 7:00 p.m.YUL Montreal Pierre Elliott Trudeau Intl-SLU Castries George F. L. Charle

20h 40m2 stops Toronto Pearson Intl Bridgetown Grantley Adams Intl

12:35 p.m. - 12:25 a.m.SLU Castries George F. L. Charle-YUL Montreal Pierre Elliott Trudeau Intl

12h 50m2 stops Bridgetown Grantley Adams Intl Toronto Pearson Intl

C$ 994Multiple Airlines

1 day ago

Sun, 31 Jan - Sun, 7 Feb

9:20 a.m. - 3:15 p.m.YUL Montreal Pierre Elliott Trudeau Intl-SLU Castries George F. L. Charle

28h 55m1 stop Bridgetown Grantley Adams Intl

9:10 a.m. - 9:40 p.m.SLU Castries George F. L. Charle-YUL Montreal Pierre Elliott Trudeau Intl

13h 30m1 stop Bridgetown Grantley Adams Intl

C$ 1,006Multiple Airlines

9 hours ago

Recent last minute flight deals from Montreal to Castries

Sun, 25 Oct - Sat, 31 Oct

9:10 a.m. - 6:55 p.m.YUL Montreal Pierre Elliott Trudeau Intl-SLU Castries George F. L. Charle

33h 45m2 stops Toronto Pearson Intl Bridgetown Grantley Adams Intl

12:35 p.m. - 9:25 a.m.SLU Castries George F. L. Charle-YUL Montreal Pierre Elliott Trudeau Intl

20h 50m2 stops Bridgetown Grantley Adams Intl Toronto Pearson Intl

C$ 1,197Multiple Airlines

1 day ago

Sun, 25 Oct - Sat, 31 Oct

9:20 a.m. - 7:00 p.m.YUL Montreal Pierre Elliott Trudeau Intl-SLU Castries George F. L. Charle

9h 40m1 stop Bridgetown Grantley Adams Intl

12:35 p.m. - 11:51 p.m.SLU Castries George F. L. Charle-YUL Montreal Pierre Elliott Trudeau Intl

11h 16m2 stops Bridgetown Grantley Adams Intl Toronto Pearson Intl

C$ 1,220Multiple Airlines

1 day ago

Sat, 24 Oct - Sat, 31 Oct

10:00 p.m. - 7:00 p.m.YUL Montreal Pierre Elliott Trudeau Intl-SLU Castries George F. L. Charle

21h 00m2 stops Toronto Pearson Intl Bridgetown Grantley Adams Intl

12:35 p.m. - 12:25 a.m.SLU Castries George F. L. Charle-YUL Montreal Pierre Elliott Trudeau Intl

11h 50m2 stops Bridgetown Grantley Adams Intl Toronto Pearson Intl

C$ 1,279Multiple Airlines

1 day ago

Sun, 25 Oct - Sun, 1 Nov

9:20 p.m. - 6:55 p.m.YUL Montreal Pierre Elliott Trudeau Intl-SLU Castries George F. L. Charle

21h 35m2 stops Toronto Pearson Intl Bridgetown Grantley Adams Intl

12:35 p.m. - 7:50 a.m.SLU Castries George F. L. Charle-YUL Montreal Pierre Elliott Trudeau Intl

20h 15m2 stops Bridgetown Grantley Adams Intl Toronto Pearson Intl

C$ 1,335Multiple Airlines

1 day ago

Sun, 25 Oct - Sun, 1 Nov

9:20 a.m. - 7:00 p.m.YUL Montreal Pierre Elliott Trudeau Intl-SLU Castries George F. L. Charle

9h 40m1 stop Bridgetown Grantley Adams Intl

12:35 p.m. - 7:50 a.m.SLU Castries George F. L. Charle-YUL Montreal Pierre Elliott Trudeau Intl

20h 15m2 stops Bridgetown Grantley Adams Intl Toronto Pearson Intl

C$ 1,358Multiple Airlines

1 day ago

Sun, 25 Oct - Sun, 1 Nov

9:20 a.m. - 7:00 p.m.YUL Montreal Pierre Elliott Trudeau Intl-SLU Castries George F. L. Charle

9h 40m1 stop Bridgetown Grantley Adams Intl

12:35 p.m. - 9:40 p.m.SLU Castries George F. L. Charle-YUL Montreal Pierre Elliott Trudeau Intl

10h 05m1 stop Bridgetown Grantley Adams Intl

C$ 1,410Multiple Airlines

1 day ago

Sun, 25 Oct - Sat, 31 Oct

10:40 a.m. - 6:55 p.m.YUL Montreal Pierre Elliott Trudeau Intl-SLU Castries George F. L. Charle

32h 15m3 stops Ottawa Toronto Pearson Intl Bridgetown Grantley Adams Intl

12:35 p.m. - 12:47 p.m.SLU Castries George F. L. Charle-YUL Montreal Pierre Elliott Trudeau Intl

24h 12m3 stops Bridgetown Grantley Adams Intl Toronto Pearson Intl Ottawa

C$ 1,427Multiple Airlines

1 day ago

Sun, 25 Oct - Sat, 31 Oct

3:00 p.m. - 6:55 p.m.YUL Montreal Pierre Elliott Trudeau Intl-SLU Castries George F. L. Charle

27h 55m3 stops Ottawa Toronto Pearson Intl Bridgetown Grantley Adams Intl

12:35 p.m. - 12:25 a.m.SLU Castries George F. L. Charle-YUL Montreal Pierre Elliott Trudeau Intl

11h 50m2 stops Bridgetown Grantley Adams Intl Toronto Pearson Intl

C$ 1,450Multiple Airlines

1 day ago

Sun, 25 Oct - Sun, 1 Nov

9:20 p.m. - 6:55 p.m.YUL Montreal Pierre Elliott Trudeau Intl-SLU Castries George F. L. Charle

21h 35m2 stops Toronto Pearson Intl Bridgetown Grantley Adams Intl

12:35 p.m. - 10:03 a.m.SLU Castries George F. L. Charle-YUL Montreal Pierre Elliott Trudeau Intl

22h 28m3 stops Bridgetown Grantley Adams Intl Toronto Pearson Intl Ottawa

C$ 1,576Multiple Airlines

1 day ago

Sat, 24 Oct - Sat, 31 Oct

7:20 p.m. - 7:00 p.m.YUL Montreal Pierre Elliott Trudeau Intl-SLU Castries George F. L. Charle

23h 40m2 stops Toronto Pearson Intl Bridgetown Grantley Adams Intl

12:35 p.m. - 11:03 a.m.SLU Castries George F. L. Charle-YUL Montreal Pierre Elliott Trudeau Intl

22h 28m3 stops Bridgetown Grantley Adams Intl Toronto Pearson Intl Ottawa

C$ 1,973Multiple Airlines

1 day ago

Booking Insights

Price, demand, and travel trends for Montreal Pierre Elliott Trudeau Intl Airport to Castries flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights with more confidence.

Prices

Layovers

What's the cheapest day of the week to fly from Montreal Pierre Elliott Trudeau Intl Airport to Castries?: Based on deals KAYAK users found in the last 12 months, Sunday is the cheapest day of the week to fly from Montreal Pierre Elliott Trudeau Intl Airport to Castries. It’s 11% cheaper than the average day, while Friday is the most expensive, with prices 13% higher.

Find deals

High season	December
Cheapest flight	C$ 433

The most popular month to fly with an average 63% increase in traveller numbers.

One-way flight from Montreal Pierre Elliott Trudeau Intl Airport to Castries

When to book flights from Montreal to Castries

Are your dates flexible? Find out the best times to travel from Montreal to Castries based on our flight data from the last year. Discover the cheapest month and even day to fly.

Estimated round-trip price

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

Which cabin classes can I book on flights from Montreal Pierre Elliott Trudeau Intl Airport to Castries?
Only Economy Class is available on flights from Montreal Pierre Elliott Trudeau Intl Airport to Castries.
How long does a flight from Montreal Pierre Elliott Trudeau Intl Airport to Castries take?
A direct flight from Montreal Pierre Elliott Trudeau Intl Airport to Castries takes 00m, covering 5,944 km.
Do I need a passport to fly from Montreal Pierre Elliott Trudeau Intl Airport to Castries?
Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.
How much should I expect to pay for a Montreal Pierre Elliott Trudeau Intl Airport to Castries flight?
Round-trip flights from Montreal Pierre Elliott Trudeau Intl Airport to Castries range from C$ 1,023 to C$ 1,250, with an average of C$ 1,098 over the past 12 months. Anything below C$ 1,023 counts as a good deal.
Have flight prices from Montreal Pierre Elliott Trudeau Intl Airport to Castries changed much recently?
Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about C$ 929 to C$ 4,168. That means the highest observed fare was about 4x higher than the lowest one.
How are flight prices from Montreal Pierre Elliott Trudeau Intl Airport to Castries looking right now?
One-way fares from Montreal Pierre Elliott Trudeau Intl Airport to Castries are currently higher than usual. Average one-way flight prices are about C$ 636, which is 26% above the typical average for this route.
What car rental options are available at Castries George F. L. Charle Airport (SLU)?
Castries George F. L. Charle Airport (SLU) hosts 5 major car rental companies, with daily rates starting from around C$ 20 for economy cars. Top options include:

• Ace
• Drive A Matic
• Final Rentals
• Sixt
• FlexWays
Which airports can I use when flying from Montreal Pierre Elliott Trudeau Intl Airport to Castries?
Flights from Montreal Pierre Elliott Trudeau Intl Airport to Castries usually depart from Montreal Pierre Elliott Trudeau Intl (YUL) and arrive at Castries George F. L. Charle (SLU).
Which airports do connecting flights from Montreal Pierre Elliott Trudeau Intl Airport to Castries pass through?
Most connecting flights from Montreal Pierre Elliott Trudeau Intl Airport to Castries pass through Bridgetown Grantley Adams Intl (BGI), which handles 100% of one-stop traffic on this route.
Can I save money by using flexible dates for flights from Montreal Pierre Elliott Trudeau Intl Airport to Castries?
Yes. Flexible dates can save you up to 22% on flights from Montreal Pierre Elliott Trudeau Intl Airport to Castries. Sunday is the cheapest departure day at C$ 987 round-trip on average, while Friday is the most expensive at C$ 1,251, a difference of C$ 264.

Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

If your dates are flexible, aim for a Sunday departure and avoid flying on Friday. On this route, Sunday flights average C$ 987, about C$ 264 less than Friday fares (21% savings) based on the last 12 months.
If you can choose when to travel, plan your Montreal Pierre Elliott Trudeau Intl Airport to Castries trip for October. Fares historically average C$ 1,023 round-trip in that month – typically C$ 763 less than the most expensive month, which is July (based on the last 12 months).
If you're arriving late at night and need somewhere to stay, check out these hotels close to Castries George F. L. Charle Airport.

• Stolen Time St. Lucia
• Sandals Regency La Toc

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YUL - SLU

C$ 433 Find Cheap Flights from Montreal to Castries – Compare and Save

Everything you should know

Cheap Flights from Montreal to Castries (YUL-SLU)

Recent round-trip flight deals from Montreal to Castries

Recent one-way flight deals from Montreal to Castries

Recent last minute flight deals from Montreal to Castries

Price, demand, and travel trends for Montreal Pierre Elliott Trudeau Intl Airport to Castries flights

What's the cheapest day of the week to fly from Montreal Pierre Elliott Trudeau Intl Airport to Castries?

What is the cheapest layover airport when flying from Montreal Pierre Elliott Trudeau Intl Airport to Castries?

When flying from Montreal Pierre Elliott Trudeau Intl Airport to Castries, which airport offers the shortest layover?

Key details for Montreal Pierre Elliott Trudeau Intl Airport to Castries flights

High season

Cheapest flight

When to book flights from Montreal to Castries

Your Montreal Pierre Elliott Trudeau Intl Airport to Castries flight questions, answered

Your guide to booking Montreal Pierre Elliott Trudeau Intl Airport to Castries flights

More options for your flight from Montreal to Castries

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