| Newburn to Smolyan | 1,512.76 mi (2,434.56 km) |
| Newburn to Sofia | 1,408.50 mi (2,266.76 km) |
| Newburn to Sopot | 1,461.72 mi (2,352.41 km) |
| Newburn to Sozopol | 1,580.75 mi (2,543.97 km) |
| Newburn to Sredets | 1,565.48 mi (2,519.39 km) |
| Newburn to Stamboliyski | 1,479.35 mi (2,380.79 km) |
| Newburn to Stara Zagora | 1,504.80 mi (2,421.75 km) |
| Newburn to Svilengrad | 1,557.32 mi (2,506.27 km) |
| Newburn to Svishtov | 1,437.41 mi (2,313.29 km) |
| Newburn to Targovishte | 1,500.10 mi (2,414.18 km) |
| Newburn to Teteven | 1,431.34 mi (2,303.52 km) |
| Newburn to Troyan | 1,449.19 mi (2,332.25 km) |
| Newburn to Tryavna | 1,478.43 mi (2,379.30 km) |
| Newburn to Tutrakan | 1,464.47 mi (2,356.84 km) |
| Newburn to Varna | 1,551.31 mi (2,496.59 km) |
