| San Roque to Smolyan | 1,650.85 mi (2,656.78 km) |
| San Roque to Sofia | 1,587.47 mi (2,554.78 km) |
| San Roque to Sopot | 1,658.83 mi (2,669.63 km) |
| San Roque to Sozopol | 1,807.54 mi (2,908.95 km) |
| San Roque to Sredets | 1,781.83 mi (2,867.58 km) |
| San Roque to Stamboliyski | 1,644.76 mi (2,646.99 km) |
| San Roque to Stara Zagora | 1,703.24 mi (2,741.10 km) |
| San Roque to Svilengrad | 1,728.77 mi (2,782.19 km) |
| San Roque to Svishtov | 1,696.14 mi (2,729.67 km) |
| San Roque to Targovishte | 1,754.98 mi (2,824.36 km) |
| San Roque to Teteven | 1,636.35 mi (2,633.45 km) |
| San Roque to Troyan | 1,658.75 mi (2,669.49 km) |
| San Roque to Tryavna | 1,698.11 mi (2,732.84 km) |
| San Roque to Tutrakan | 1,762.42 mi (2,836.34 km) |
| San Roque to Varna | 1,821.70 mi (2,931.74 km) |
