| Grado to Smolyan | 1,564.02 mi (2,517.05 km) |
| Grado to Sofia | 1,477.79 mi (2,378.28 km) |
| Grado to Sopot | 1,549.02 mi (2,492.91 km) |
| Grado to Sozopol | 1,698.94 mi (2,734.17 km) |
| Grado to Sredets | 1,675.26 mi (2,696.08 km) |
| Grado to Stamboliyski | 1,546.32 mi (2,488.56 km) |
| Grado to Stara Zagora | 1,597.02 mi (2,570.16 km) |
| Grado to Svilengrad | 1,635.57 mi (2,632.19 km) |
| Grado to Svishtov | 1,565.43 mi (2,519.32 km) |
| Grado to Targovishte | 1,631.02 mi (2,624.87 km) |
| Grado to Teteven | 1,521.20 mi (2,448.13 km) |
| Grado to Troyan | 1,543.97 mi (2,484.77 km) |
| Grado to Tryavna | 1,582.99 mi (2,547.58 km) |
| Grado to Tutrakan | 1,622.31 mi (2,610.85 km) |
| Grado to Varna | 1,697.16 mi (2,731.32 km) |
