The cheapest Vienna to Saint Lucia return flight on the radar right now is €924, flying with Air Canada via one or more connections. It covers departures in January 2027, and every dated link below opens that exact VIE–UVF search on Skyscanner. The price we usually record on this route is €786. Across 42 recorded checks it has ranged between €706 and €1,552. Our sampling points to January 2027 as the cheapest month to fly Vienna to Saint Lucia.
Prices are re-checked against Skyscanner automatically, and every one shows when it was last confirmed, so nothing here is older than it looks. Not flying from Vienna? We track 42 other departure cities for Saint Lucia, listed at the foot of this page.
Prices like this tend to vanish fast. If it has gone when you look, try the days either side of the dates above, since Vienna to Saint Lucia is often still worth booking within a day or two of the fare we found.