| Hereford to Smolyan | 1,471.75 mi (2,368.56 km) |
| Hereford to Sofia | 1,368.95 mi (2,203.10 km) |
| Hereford to Sopot | 1,428.72 mi (2,299.30 km) |
| Hereford to Sozopol | 1,559.50 mi (2,509.77 km) |
| Hereford to Sredets | 1,541.55 mi (2,480.88 km) |
| Hereford to Stamboliyski | 1,441.48 mi (2,319.83 km) |
| Hereford to Stara Zagora | 1,474.43 mi (2,372.87 km) |
| Hereford to Svilengrad | 1,524.72 mi (2,453.80 km) |
| Hereford to Svishtov | 1,414.70 mi (2,276.74 km) |
| Hereford to Targovishte | 1,480.08 mi (2,381.96 km) |
| Hereford to Teteven | 1,398.06 mi (2,249.96 km) |
| Hereford to Troyan | 1,417.81 mi (2,281.75 km) |
| Hereford to Tryavna | 1,450.59 mi (2,334.51 km) |
| Hereford to Tutrakan | 1,450.83 mi (2,334.89 km) |
| Hereford to Varna | 1,536.81 mi (2,473.26 km) |
