| Newcastle to Smolyan | 1,507.96 mi (2,426.83 km) |
| Newcastle to Sofia | 1,403.69 mi (2,259.03 km) |
| Newcastle to Sopot | 1,456.84 mi (2,344.56 km) |
| Newcastle to Sozopol | 1,575.76 mi (2,535.94 km) |
| Newcastle to Sredets | 1,560.51 mi (2,511.40 km) |
| Newcastle to Stamboliyski | 1,474.52 mi (2,373.02 km) |
| Newcastle to Stara Zagora | 1,499.90 mi (2,413.85 km) |
| Newcastle to Svilengrad | 1,552.43 mi (2,498.40 km) |
| Newcastle to Svishtov | 1,432.44 mi (2,305.29 km) |
| Newcastle to Targovishte | 1,495.10 mi (2,406.14 km) |
| Newcastle to Teteven | 1,426.47 mi (2,295.68 km) |
| Newcastle to Troyan | 1,444.30 mi (2,324.38 km) |
| Newcastle to Tryavna | 1,473.50 mi (2,371.37 km) |
| Newcastle to Tutrakan | 1,459.43 mi (2,348.72 km) |
| Newcastle to Varna | 1,546.26 mi (2,488.47 km) |
