| Monkseaton to Smolyan | 1,504.62 mi (2,421.45 km) |
| Monkseaton to Sofia | 1,400.34 mi (2,253.63 km) |
| Monkseaton to Sopot | 1,453.26 mi (2,338.79 km) |
| Monkseaton to Sozopol | 1,571.77 mi (2,529.52 km) |
| Monkseaton to Sredets | 1,556.61 mi (2,505.12 km) |
| Monkseaton to Stamboliyski | 1,471.09 mi (2,367.49 km) |
| Monkseaton to Stara Zagora | 1,496.22 mi (2,407.93 km) |
| Monkseaton to Svilengrad | 1,548.80 mi (2,492.56 km) |
| Monkseaton to Svishtov | 1,428.54 mi (2,299.02 km) |
| Monkseaton to Targovishte | 1,491.10 mi (2,399.70 km) |
| Monkseaton to Teteven | 1,422.90 mi (2,289.94 km) |
| Monkseaton to Troyan | 1,440.67 mi (2,318.54 km) |
| Monkseaton to Tryavna | 1,469.75 mi (2,365.33 km) |
| Monkseaton to Tutrakan | 1,455.25 mi (2,341.99 km) |
| Monkseaton to Varna | 1,542.08 mi (2,481.74 km) |
