| Eastham to Smolyan | 1,510.98 mi (2,431.69 km) |
| Eastham to Sofia | 1,407.35 mi (2,264.92 km) |
| Eastham to Sopot | 1,464.72 mi (2,357.24 km) |
| Eastham to Sozopol | 1,591.16 mi (2,560.73 km) |
| Eastham to Sredets | 1,574.24 mi (2,533.49 km) |
| Eastham to Stamboliyski | 1,479.42 mi (2,380.89 km) |
| Eastham to Stara Zagora | 1,509.51 mi (2,429.33 km) |
| Eastham to Svilengrad | 1,560.79 mi (2,511.85 km) |
| Eastham to Svishtov | 1,446.60 mi (2,328.08 km) |
| Eastham to Targovishte | 1,511.08 mi (2,431.85 km) |
| Eastham to Teteven | 1,434.09 mi (2,307.95 km) |
| Eastham to Troyan | 1,453.15 mi (2,338.62 km) |
| Eastham to Tryavna | 1,484.62 mi (2,389.26 km) |
| Eastham to Tutrakan | 1,479.21 mi (2,380.55 km) |
| Eastham to Varna | 1,565.74 mi (2,519.81 km) |
