| Tonypandy to Smolyan | 1,492.64 mi (2,402.18 km) |
| Tonypandy to Sofia | 1,390.35 mi (2,237.55 km) |
| Tonypandy to Sopot | 1,451.20 mi (2,335.48 km) |
| Tonypandy to Sozopol | 1,583.82 mi (2,548.91 km) |
| Tonypandy to Sredets | 1,565.43 mi (2,519.32 km) |
| Tonypandy to Stamboliyski | 1,463.03 mi (2,354.51 km) |
| Tonypandy to Stara Zagora | 1,497.29 mi (2,409.66 km) |
| Tonypandy to Svilengrad | 1,547.07 mi (2,489.77 km) |
| Tonypandy to Svishtov | 1,439.06 mi (2,315.95 km) |
| Tonypandy to Targovishte | 1,504.77 mi (2,421.70 km) |
| Tonypandy to Teteven | 1,420.56 mi (2,286.17 km) |
| Tonypandy to Troyan | 1,440.61 mi (2,318.44 km) |
| Tonypandy to Tryavna | 1,473.96 mi (2,372.12 km) |
| Tonypandy to Tutrakan | 1,476.68 mi (2,376.48 km) |
| Tonypandy to Varna | 1,562.35 mi (2,514.35 km) |
