The cheapest Zagreb to Saint Lucia return flight on the radar right now is €971, flying with Croatia Airlines + Air Canada + Lufthansa via one or more connections. It covers departures in February 2027, and every dated link below opens that exact ZAG–UVF search on Skyscanner. Across 41 recorded checks it has ranged between €853 and €1,518. Our sampling points to February 2027 as the cheapest month to fly Zagreb to Saint Lucia.
Every fare here is re-confirmed against Skyscanner automatically, and each one is stamped with the moment it was last checked, so you can see how fresh it is instead of taking it on trust. Not flying from Zagreb? We track 42 other departure cities for Saint Lucia, listed at the foot of this page.
Fares move quickly. If this Zagreb to Saint Lucia price has gone by the time you search, shift the dates a day or two either side, because the same route is often still cheap just next door.