| Mill Hill to Smolyan | 1,361.68 mi (2,191.41 km) |
| Mill Hill to Sofia | 1,258.79 mi (2,025.82 km) |
| Mill Hill to Sopot | 1,318.43 mi (2,121.81 km) |
| Mill Hill to Sozopol | 1,449.23 mi (2,332.31 km) |
| Mill Hill to Sredets | 1,431.25 mi (2,303.37 km) |
| Mill Hill to Stamboliyski | 1,331.29 mi (2,142.50 km) |
| Mill Hill to Stara Zagora | 1,364.12 mi (2,195.34 km) |
| Mill Hill to Svilengrad | 1,414.44 mi (2,276.32 km) |
| Mill Hill to Svishtov | 1,304.44 mi (2,099.29 km) |
| Mill Hill to Targovishte | 1,369.86 mi (2,204.57 km) |
| Mill Hill to Teteven | 1,287.77 mi (2,072.46 km) |
| Mill Hill to Troyan | 1,307.50 mi (2,104.22 km) |
| Mill Hill to Tryavna | 1,340.28 mi (2,156.97 km) |
| Mill Hill to Tutrakan | 1,340.83 mi (2,157.85 km) |
| Mill Hill to Varna | 1,426.74 mi (2,296.11 km) |
