| Miercurea-Ciuc to Sestao | 1,419.05 mi (2,283.74 km) |
| Miercurea-Ciuc to Sevilla | 1,740.19 mi (2,800.57 km) |
| Miercurea-Ciuc to Sevilla La Nueva | 1,544.94 mi (2,486.35 km) |
| Miercurea-Ciuc to Silla | 1,404.97 mi (2,261.07 km) |
| Miercurea-Ciuc to Silleda | 1,682.10 mi (2,707.07 km) |
| Miercurea-Ciuc to Sitges | 1,242.60 mi (1,999.77 km) |
| Miercurea-Ciuc to Socuellamos | 1,519.32 mi (2,445.10 km) |
| Miercurea-Ciuc to Soller | 1,246.34 mi (2,005.79 km) |
| Miercurea-Ciuc to Solsona | 1,235.20 mi (1,987.86 km) |
| Miercurea-Ciuc to Son Servera | 1,220.71 mi (1,964.55 km) |
| Miercurea-Ciuc to Sonseca | 1,560.99 mi (2,512.17 km) |
| Miercurea-Ciuc to Sopelana | 1,416.24 mi (2,279.22 km) |
| Miercurea-Ciuc to Soria | 1,430.72 mi (2,302.53 km) |
| Miercurea-Ciuc to Suances | 1,466.12 mi (2,359.49 km) |
| Miercurea-Ciuc to Sueca | 1,405.64 mi (2,262.16 km) |
