| Mascalucia to Sestao | 1,026.39 mi (1,651.82 km) |
| Mascalucia to Sevilla | 1,152.61 mi (1,854.95 km) |
| Mascalucia to Sevilla La Nueva | 1,040.76 mi (1,674.95 km) |
| Mascalucia to Silla | 844.47 mi (1,359.05 km) |
| Mascalucia to Silleda | 1,275.41 mi (2,052.57 km) |
| Mascalucia to Sitges | 750.28 mi (1,207.45 km) |
| Mascalucia to Socuellamos | 971.56 mi (1,563.57 km) |
| Mascalucia to Soller | 682.76 mi (1,098.80 km) |
| Mascalucia to Solsona | 779.81 mi (1,254.99 km) |
| Mascalucia to Son Servera | 646.53 mi (1,040.50 km) |
| Mascalucia to Sonseca | 1,034.03 mi (1,664.10 km) |
| Mascalucia to Sopelana | 1,026.53 mi (1,652.04 km) |
| Mascalucia to Soria | 973.76 mi (1,567.12 km) |
| Mascalucia to Suances | 1,079.14 mi (1,736.71 km) |
| Mascalucia to Sueca | 838.56 mi (1,349.53 km) |
