| Royton to Smolyan | 1,485.48 mi (2,390.64 km) |
| Royton to Sofia | 1,381.63 mi (2,223.51 km) |
| Royton to Sopot | 1,438.08 mi (2,314.37 km) |
| Royton to Sozopol | 1,562.97 mi (2,515.35 km) |
| Royton to Sredets | 1,546.39 mi (2,488.67 km) |
| Royton to Stamboliyski | 1,453.46 mi (2,339.12 km) |
| Royton to Stara Zagora | 1,482.52 mi (2,385.88 km) |
| Royton to Svilengrad | 1,534.10 mi (2,468.90 km) |
| Royton to Svishtov | 1,418.58 mi (2,282.99 km) |
| Royton to Targovishte | 1,482.71 mi (2,386.20 km) |
| Royton to Teteven | 1,407.49 mi (2,265.13 km) |
| Royton to Troyan | 1,426.28 mi (2,295.38 km) |
| Royton to Tryavna | 1,457.27 mi (2,345.26 km) |
| Royton to Tutrakan | 1,450.04 mi (2,333.61 km) |
| Royton to Varna | 1,536.68 mi (2,473.05 km) |
