| Omurtag to Sestao | 1,474.13 mi (2,372.39 km) |
| Omurtag to Sevilla | 1,746.55 mi (2,810.79 km) |
| Omurtag to Sevilla La Nueva | 1,572.77 mi (2,531.12 km) |
| Omurtag to Silla | 1,411.43 mi (2,271.47 km) |
| Omurtag to Silleda | 1,741.39 mi (2,802.49 km) |
| Omurtag to Sitges | 1,262.46 mi (2,031.73 km) |
| Omurtag to Socuellamos | 1,533.25 mi (2,467.52 km) |
| Omurtag to Soller | 1,245.59 mi (2,004.58 km) |
| Omurtag to Solsona | 1,265.07 mi (2,035.93 km) |
| Omurtag to Son Servera | 1,215.56 mi (1,956.25 km) |
| Omurtag to Sonseca | 1,582.44 mi (2,546.69 km) |
| Omurtag to Sopelana | 1,472.02 mi (2,368.98 km) |
| Omurtag to Soria | 1,468.52 mi (2,363.35 km) |
| Omurtag to Suances | 1,524.42 mi (2,453.31 km) |
| Omurtag to Sueca | 1,410.09 mi (2,269.32 km) |
