| Troon to Smolyan | 1,633.04 mi (2,628.12 km) |
| Troon to Sofia | 1,528.80 mi (2,460.37 km) |
| Troon to Sopot | 1,582.42 mi (2,546.66 km) |
| Troon to Sozopol | 1,701.83 mi (2,738.84 km) |
| Troon to Sredets | 1,686.52 mi (2,714.19 km) |
| Troon to Stamboliyski | 1,599.81 mi (2,574.64 km) |
| Troon to Stara Zagora | 1,625.64 mi (2,616.21 km) |
| Troon to Svilengrad | 1,678.08 mi (2,700.61 km) |
| Troon to Svishtov | 1,558.45 mi (2,508.08 km) |
| Troon to Targovishte | 1,621.19 mi (2,609.05 km) |
| Troon to Teteven | 1,552.01 mi (2,497.73 km) |
| Troon to Troyan | 1,569.96 mi (2,526.61 km) |
| Troon to Tryavna | 1,599.34 mi (2,573.89 km) |
| Troon to Tutrakan | 1,585.58 mi (2,551.74 km) |
| Troon to Varna | 1,672.42 mi (2,691.50 km) |
