| Motherwell to Smolyan | 1,616.11 mi (2,600.89 km) |
| Motherwell to Sofia | 1,511.83 mi (2,433.06 km) |
| Motherwell to Sopot | 1,564.61 mi (2,518.00 km) |
| Motherwell to Sozopol | 1,682.54 mi (2,707.79 km) |
| Motherwell to Sredets | 1,667.54 mi (2,683.65 km) |
| Motherwell to Stamboliyski | 1,582.55 mi (2,546.87 km) |
| Motherwell to Stara Zagora | 1,607.47 mi (2,586.97 km) |
| Motherwell to Svilengrad | 1,660.11 mi (2,671.69 km) |
| Motherwell to Svishtov | 1,539.49 mi (2,477.57 km) |
| Motherwell to Targovishte | 1,601.85 mi (2,577.93 km) |
| Motherwell to Teteven | 1,534.27 mi (2,469.18 km) |
| Motherwell to Troyan | 1,551.98 mi (2,497.67 km) |
| Motherwell to Tryavna | 1,580.91 mi (2,544.23 km) |
| Motherwell to Tutrakan | 1,565.58 mi (2,519.57 km) |
| Motherwell to Varna | 1,652.41 mi (2,659.30 km) |
