Today's drop ·
Cheap flights from Montreal to St. Lucia
$465 round trip right now, 17% under the $559 this route usually costs.

How cheap is this?
Telly prices every departure date six months out on this route, for trips of 2 to 14 nights, and measures each fare against what the route usually costs. The cheapest round trip right now is $465 on American Airlines, 2 stops, against a usual $559. 17% below the usual fare.
When to go
The cheapest dates fall in Nov–Dec, for trips of 5 nights. Nov in St. Lucia runs around 84°. The dates come picked because a cheap fare only exists on certain days; the exact ones and the booking link are in the app.
Passport required
St. Lucia is outside the US and Canada, so you need a passport. Every flight on Telly leaves the country; that is the whole filter.
Questions about this route
How much is a flight from Montreal to St. Lucia?+
Right now $465 round trip, on American Airlines. The route usually costs $559, so this fare is 17% under. Checked Nov 3, 2026.
When are the cheapest dates to fly to St. Lucia?+
The cheapest dates Telly found are in Nov–Dec, for trips of 5 nights. It prices every departure date six months out on this route and keeps only the lowest. The exact dates are in the app.
Do I need a passport to fly from Montreal to St. Lucia?+
Yes. St. Lucia is outside the US and Canada, and every flight on Telly leaves the country, so every one needs a passport.





