| Atherton to Smolyan | 1,498.50 mi (2,411.61 km) |
| Atherton to Sofia | 1,394.72 mi (2,244.58 km) |
| Atherton to Sopot | 1,451.44 mi (2,335.87 km) |
| Atherton to Sozopol | 1,576.77 mi (2,537.57 km) |
| Atherton to Sredets | 1,560.10 mi (2,510.73 km) |
| Atherton to Stamboliyski | 1,466.62 mi (2,360.30 km) |
| Atherton to Stara Zagora | 1,495.98 mi (2,407.55 km) |
| Atherton to Svilengrad | 1,547.48 mi (2,490.43 km) |
| Atherton to Svishtov | 1,432.33 mi (2,305.12 km) |
| Atherton to Targovishte | 1,496.56 mi (2,408.49 km) |
| Atherton to Teteven | 1,420.83 mi (2,286.61 km) |
| Atherton to Troyan | 1,439.71 mi (2,316.99 km) |
| Atherton to Tryavna | 1,470.84 mi (2,367.08 km) |
| Atherton to Tutrakan | 1,464.10 mi (2,356.25 km) |
| Atherton to Varna | 1,550.72 mi (2,495.64 km) |
