The cheapest Chisinau to San Juan return flight on the radar right now is €883, flying with LOT + jetBlue via one or more connections. It covers departures in January 2027, and every dated link below opens that exact RMO–SJU search on Skyscanner. Across 26 recorded checks it has ranged between €791 and €1,530. Our sampling points to January 2027 as the cheapest month to fly Chisinau to San Juan.
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 Chisinau? We track 53 other departure cities for San Juan, 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 Chisinau to San Juan is often still worth booking within a day or two of the fare we found.