| Del City to Smolyan | 5,977.72 mi (9,620.22 km) |
| Del City to Sofia | 5,873.48 mi (9,452.45 km) |
| Del City to Sopot | 5,926.23 mi (9,537.35 km) |
| Del City to Sozopol | 6,040.07 mi (9,720.55 km) |
| Del City to Sredets | 6,026.42 mi (9,698.59 km) |
| Del City to Stamboliyski | 5,944.35 mi (9,566.51 km) |
| Del City to Stara Zagora | 5,968.60 mi (9,605.54 km) |
| Del City to Svilengrad | 6,021.53 mi (9,690.71 km) |
| Del City to Svishtov | 5,898.68 mi (9,493.01 km) |
| Del City to Targovishte | 5,959.41 mi (9,590.74 km) |
| Del City to Teteven | 5,895.96 mi (9,488.63 km) |
| Del City to Troyan | 5,913.42 mi (9,516.73 km) |
| Del City to Tryavna | 5,941.55 mi (9,562.00 km) |
| Del City to Tutrakan | 5,919.84 mi (9,527.07 km) |
| Del City to Varna | 6,006.15 mi (9,665.97 km) |
