| Allison Park to Smolyan | 5,062.34 mi (8,147.05 km) |
| Allison Park to Sofia | 4,959.13 mi (7,980.95 km) |
| Allison Park to Sopot | 5,017.16 mi (8,074.33 km) |
| Allison Park to Sozopol | 5,141.87 mi (8,275.04 km) |
| Allison Park to Sredets | 5,125.69 mi (8,249.01 km) |
| Allison Park to Stamboliyski | 5,031.43 mi (8,097.31 km) |
| Allison Park to Stara Zagora | 5,061.90 mi (8,146.34 km) |
| Allison Park to Svilengrad | 5,113.23 mi (8,228.95 km) |
| Allison Park to Svishtov | 4,997.77 mi (8,043.13 km) |
| Allison Park to Targovishte | 5,061.41 mi (8,145.55 km) |
| Allison Park to Teteven | 4,986.53 mi (8,025.04 km) |
| Allison Park to Troyan | 5,005.58 mi (8,055.70 km) |
| Allison Park to Tryavna | 5,036.78 mi (8,105.91 km) |
| Allison Park to Tutrakan | 5,026.84 mi (8,089.92 km) |
| Allison Park to Varna | 5,113.67 mi (8,229.66 km) |
