| Ilkeston to Smolyan | 1,438.61 mi (2,315.22 km) |
| Ilkeston to Sofia | 1,334.95 mi (2,148.40 km) |
| Ilkeston to Sopot | 1,392.26 mi (2,240.62 km) |
| Ilkeston to Sozopol | 1,518.78 mi (2,444.23 km) |
| Ilkeston to Sredets | 1,501.81 mi (2,416.93 km) |
| Ilkeston to Stamboliyski | 1,406.99 mi (2,264.34 km) |
| Ilkeston to Stara Zagora | 1,437.05 mi (2,312.70 km) |
| Ilkeston to Svilengrad | 1,488.33 mi (2,395.23 km) |
| Ilkeston to Svishtov | 1,374.20 mi (2,211.56 km) |
| Ilkeston to Targovishte | 1,438.72 mi (2,315.39 km) |
| Ilkeston to Teteven | 1,361.63 mi (2,191.33 km) |
| Ilkeston to Troyan | 1,380.68 mi (2,222.00 km) |
| Ilkeston to Tryavna | 1,412.16 mi (2,272.65 km) |
| Ilkeston to Tutrakan | 1,407.00 mi (2,264.35 km) |
| Ilkeston to Varna | 1,493.50 mi (2,403.56 km) |
