| Spalding to Smolyan | 1,389.27 mi (2,235.81 km) |
| Spalding to Sofia | 1,285.55 mi (2,068.90 km) |
| Spalding to Sopot | 1,342.65 mi (2,160.79 km) |
| Spalding to Sozopol | 1,468.95 mi (2,364.05 km) |
| Spalding to Sredets | 1,452.02 mi (2,336.80 km) |
| Spalding to Stamboliyski | 1,357.54 mi (2,184.75 km) |
| Spalding to Stara Zagora | 1,387.38 mi (2,232.77 km) |
| Spalding to Svilengrad | 1,438.72 mi (2,315.39 km) |
| Spalding to Svishtov | 1,324.39 mi (2,131.40 km) |
| Spalding to Targovishte | 1,388.88 mi (2,235.18 km) |
| Spalding to Teteven | 1,312.03 mi (2,111.51 km) |
| Spalding to Troyan | 1,331.04 mi (2,142.10 km) |
| Spalding to Tryavna | 1,362.43 mi (2,192.63 km) |
| Spalding to Tutrakan | 1,357.13 mi (2,184.09 km) |
| Spalding to Varna | 1,443.63 mi (2,323.29 km) |
