| Hockley to Smolyan | 1,326.60 mi (2,134.95 km) |
| Hockley to Sofia | 1,223.54 mi (1,969.10 km) |
| Hockley to Sopot | 1,282.82 mi (2,064.50 km) |
| Hockley to Sozopol | 1,413.07 mi (2,274.11 km) |
| Hockley to Sredets | 1,395.20 mi (2,245.36 km) |
| Hockley to Stamboliyski | 1,295.98 mi (2,085.69 km) |
| Hockley to Stara Zagora | 1,328.39 mi (2,137.83 km) |
| Hockley to Svilengrad | 1,378.85 mi (2,219.05 km) |
| Hockley to Svishtov | 1,268.27 mi (2,041.09 km) |
| Hockley to Targovishte | 1,333.60 mi (2,146.23 km) |
| Hockley to Teteven | 1,252.16 mi (2,015.15 km) |
| Hockley to Troyan | 1,271.79 mi (2,046.75 km) |
| Hockley to Tryavna | 1,304.39 mi (2,099.21 km) |
| Hockley to Tutrakan | 1,304.30 mi (2,099.07 km) |
| Hockley to Varna | 1,390.28 mi (2,237.43 km) |
