C$ 309 Find Cheap Flights from Montreal to Saint Lucia – Compare and Save

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Cheap Flights from Montreal to Saint Lucia

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

Recent round-trip flight deals from Montreal to Saint Lucia

Fri, 27 Nov - Sat, 5 Dec
United Airlines Logo
6:00 a.m. - 1:07 p.m.Montreal  Montreal Pierre Elliott Trudeau Intl-Castries Castries Hewanorra
30h 07m2 stops Chicago O'Hare Intl Newark
United Airlines Logo
5:17 p.m. - 3:16 p.m.Castries  Castries Hewanorra-Montreal Montreal Pierre Elliott Trudeau Intl
22h 59m2 stops Newark Washington, D.C. Reagan-National
C$ 587United Airlines
3+ days ago
Fri, 27 Nov - Sat, 5 Dec
United Airlines Logo
9:15 a.m. - 1:07 p.m.Montreal  Montreal Pierre Elliott Trudeau Intl-Castries Castries Hewanorra
26h 52m2 stops Washington, D.C. Dulles Intl Newark
United Airlines Logo
5:17 p.m. - 3:16 p.m.Castries  Castries Hewanorra-Montreal Montreal Pierre Elliott Trudeau Intl
22h 59m2 stops Newark Washington, D.C. Reagan-National
C$ 607United Airlines
13 hours ago
Fri, 27 Nov - Sat, 5 Dec
United Airlines Logo
9:15 a.m. - 1:07 p.m.Montreal  Montreal Pierre Elliott Trudeau Intl-Castries Castries Hewanorra
26h 52m2 stops Washington, D.C. Dulles Intl Newark
United Airlines Logo
1:52 p.m. - 2:00 p.m.Castries  Castries Hewanorra-Montreal Montreal Pierre Elliott Trudeau Intl
25h 08m1 stop Chicago O'Hare Intl
C$ 607United Airlines
13 hours ago
Sat, 14 Nov - Sat, 21 Nov
United Airlines Logo
6:00 a.m. - 4:25 p.m.Montreal  Montreal Pierre Elliott Trudeau Intl-Castries Castries Hewanorra
9h 25m1 stop Chicago O'Hare Intl
United Airlines Logo
1:52 p.m. - 1:28 p.m.Castries  Castries Hewanorra-Montreal Montreal Pierre Elliott Trudeau Intl
24h 36m2 stops Chicago O'Hare Intl Newark
C$ 613United Airlines
22 hours ago
Fri, 27 Nov - Sat, 5 Dec
United Airlines Logo
6:00 a.m. - 1:07 p.m.Montreal  Montreal Pierre Elliott Trudeau Intl-Castries Castries Hewanorra
30h 07m2 stops Chicago O'Hare Intl Newark
United Airlines Logo
1:52 p.m. - 2:00 p.m.Castries  Castries Hewanorra-Montreal Montreal Pierre Elliott Trudeau Intl
25h 08m1 stop Chicago O'Hare Intl
C$ 613United Airlines
3+ days ago
Sun, 29 Nov - Wed, 2 Dec
Air Canada Logo
7:10 a.m. - 4:40 p.m.Montreal  Montreal Pierre Elliott Trudeau Intl-Castries Castries Hewanorra
8h 30m1 stop Toronto Pearson Intl
Air Canada Logo
5:35 p.m. - 1:25 p.m.Castries  Castries Hewanorra-Montreal Montreal Pierre Elliott Trudeau Intl
20h 50m1 stop Toronto Pearson Intl
C$ 638Air Canada
3+ days ago
Sun, 29 Nov - Wed, 2 Dec
Air Canada Logo
7:10 a.m. - 4:40 p.m.Montreal  Montreal Pierre Elliott Trudeau Intl-Castries Castries Hewanorra
8h 30m1 stop Toronto Pearson Intl
Air Canada Logo
5:35 p.m. - 10:03 a.m.Castries  Castries Hewanorra-Montreal Montreal Pierre Elliott Trudeau Intl
41h 28m2 stops Toronto Pearson Intl Ottawa
C$ 638Air Canada
3+ days ago
Sun, 29 Nov - Wed, 2 Dec
Air Canada Logo
6:00 a.m. - 4:40 p.m.Montreal  Montreal Pierre Elliott Trudeau Intl-Castries Castries Hewanorra
9h 40m1 stop Toronto Pearson Intl
Air Canada Logo
5:35 p.m. - 8:53 p.m.Castries  Castries Hewanorra-Montreal Montreal Pierre Elliott Trudeau Intl
28h 18m2 stops Toronto Pearson Intl Ottawa
C$ 639Air Canada
2 days ago
Sun, 29 Nov - Wed, 2 Dec
Air Canada Logo
7:10 a.m. - 4:40 p.m.Montreal  Montreal Pierre Elliott Trudeau Intl-Castries Castries Hewanorra
8h 30m1 stop Toronto Pearson Intl
Air Canada Logo
5:35 p.m. - 1:25 p.m.Castries  Castries Hewanorra-Montreal Montreal Pierre Elliott Trudeau Intl
20h 50m1 stop Toronto Pearson Intl
C$ 639Air Canada
3+ days ago
Tue, 1 Dec - Tue, 8 Dec
American Airlines Logo
7:05 a.m. - 3:24 p.m.Montreal  Montreal Pierre Elliott Trudeau Intl-Castries Castries Hewanorra
31h 19m1 stop Charlotte Douglas
American Airlines Logo
4:41 p.m. - 10:48 p.m.Castries  Castries Hewanorra-Montreal Montreal Pierre Elliott Trudeau Intl
31h 07m2 stops Miami Philadelphia
C$ 643American Airlines
2 days ago
Booking Insights

KAYAK's insights & trends for Montreal to Saint Lucia flights

Get data-powered insights and trends into flights from Montreal to Saint Lucia to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Montreal Pierre Elliott Trudeau Intl Airport to Saint Lucia?

The cheapest month for flights from Montreal Pierre Elliott Trudeau Intl Airport to Saint Lucia is September, when tickets cost C$ 0 (return) on average. On the other hand, the most expensive months are March and October, when the average cost of round-trip tickets is C$ 1,575 and C$ 1,288 respectively.

Find deals

Good to know

Low season

August

Cheapest flight

C$ 309
Best time to beat the crowds (37% less expensive on average)
Most popular time to fly and prices are also 25% lower on average.
Flight from Montreal to Castries

FAQs - booking Saint Lucia flights

  • How does KAYAK find such low prices on flights from Montreal to Saint Lucia?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Montreal to Saint Lucia.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Montreal to Saint Lucia?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Montreal to Saint Lucia is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Montreal to Saint Lucia?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Montreal to Saint Lucia with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Montreal to Saint Lucia?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Montreal to Saint Lucia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Montreal to Saint Lucia

 
Need help choosing which airline to fly with from Montreal to Saint Lucia? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.1
Air CanadaOverall score based on 11854 reviews
7.3Boarding
7.8Crew
6.3Food
6.8Entertainment
7.1Comfort
Airline reviews

they could have remembered to put my luggage on the flight, it's frustrating and disappointing to have your bag left behind. now i get to deal with sh** tomorrow. do i have faith that AC will be on top of this? no. the flight was fine, run of the mill AC flight pay up for top notch service.

4.0 OkayAnonymous, Nov 2026
Read more Air Canada reviews

they could have remembered to put my luggage on the flight, it's frustrating and disappointing to have your bag left behind. now i get to deal with sh** tomorrow. do i have faith that AC will be on top of this? no. the flight was fine, run of the mill AC flight pay up for top notch service.

It was a good flight and we arrived on time, plane was clean.

The flight was fine. Long wait at security and for wheelchair. Got to gate about 5 minutes before boarding

Disappointing flight experience! ✈️ A two-hour delay, insufficient food and drinks, terrible cabin crew, and poor service overall. No toothbrushes or toothpaste provided for a long-haul flight — absolutely unacceptable! Compared with Japan Airlines, the difference in service quality is unbelievable. Overall, this experience was simply not good enough.

It was our first time flying wit Air Canada. I found most everything very good, however, our flights leaving and returning were both delayed. And we were met with no place to de-board the plane and had to wait an additional 45 minutes on the plane after arrival. That was very disappointing. Also hefty fees both ways on what would normally be a carry on bag on any other airline.

Traveling from Montreal to SFO, after landing in SFO, there was no announcement about where to claim our luggages. Our gate was in Terminal 1, and went to the luggage claim area in T1, but couldn't find any information on the screen. Eventually, an airport agent told us that our luggages would arrive in Terminal 2 luggage claim area.

Very good, easy to check in, 24 hours to cancel, good prices, nice flight attendants!

Great flights. Only criticism is when landed I. Montreal, wheelchair service has no signage or anyone letting you know where to go , just an older gentleman at the desk looking confused

This is a regional jet. As far as those go it was average. Again poor quality for an expensive seat. Not worth the upgrade

All went really well. Except that I was randomly chosen to be thoroughly checked!!

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