| Irig to Sestao | 1,134.92 mi (1,826.48 km) |
| Irig to Sevilla | 1,441.67 mi (2,320.15 km) |
| Irig to Sevilla La Nueva | 1,250.60 mi (2,012.65 km) |
| Irig to Silla | 1,106.05 mi (1,780.01 km) |
| Irig to Silleda | 1,400.79 mi (2,254.36 km) |
| Irig to Sitges | 945.52 mi (1,521.67 km) |
| Irig to Socuellamos | 1,221.70 mi (1,966.13 km) |
| Irig to Soller | 946.63 mi (1,523.46 km) |
| Irig to Solsona | 940.58 mi (1,513.72 km) |
| Irig to Son Servera | 920.86 mi (1,481.98 km) |
| Irig to Sonseca | 1,265.02 mi (2,035.85 km) |
| Irig to Sopelana | 1,132.45 mi (1,822.50 km) |
| Irig to Soria | 1,139.28 mi (1,833.50 km) |
| Irig to Suances | 1,183.76 mi (1,905.08 km) |
| Irig to Sueca | 1,106.50 mi (1,780.74 km) |
