| Guarda to Smolyan | 1,660.89 mi (2,672.94 km) |
| Guarda to Sofia | 1,582.22 mi (2,546.33 km) |
| Guarda to Sopot | 1,654.35 mi (2,662.42 km) |
| Guarda to Sozopol | 1,805.39 mi (2,905.49 km) |
| Guarda to Sredets | 1,780.73 mi (2,865.81 km) |
| Guarda to Stamboliyski | 1,647.36 mi (2,651.16 km) |
| Guarda to Stara Zagora | 1,701.54 mi (2,738.37 km) |
| Guarda to Svilengrad | 1,735.63 mi (2,793.23 km) |
| Guarda to Svishtov | 1,678.69 mi (2,701.59 km) |
| Guarda to Targovishte | 1,742.48 mi (2,804.25 km) |
| Guarda to Teteven | 1,628.20 mi (2,620.33 km) |
| Guarda to Troyan | 1,651.09 mi (2,657.17 km) |
| Guarda to Tryavna | 1,690.67 mi (2,720.87 km) |
| Guarda to Tutrakan | 1,739.60 mi (2,799.62 km) |
| Guarda to Varna | 1,809.48 mi (2,912.07 km) |
