The cheapest Barcelona to Sal return flight on the radar right now is €297, flying with TAP Air Portugal via one or more connections. It covers departures in July 2027, and every dated link below opens that exact BCN–SID search on Skyscanner. At 54% under the €644 we normally record here, it is one of the strongest BCN–SID fares in our index. Across 66 recorded checks it has ranged between €255 and €775. Our sampling points to July 2027 as the cheapest month to fly Barcelona to Sal.
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 Barcelona? We track 47 other departure cities for Sal, 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 Barcelona to Sal is often still worth booking within a day or two of the fare we found.