| Tucson Mountains to Smolyan | 6,609.76 mi (10,637.39 km) |
| Tucson Mountains to Sofia | 6,505.94 mi (10,470.30 km) |
| Tucson Mountains to Sopot | 6,551.88 mi (10,544.22 km) |
| Tucson Mountains to Sozopol | 6,651.56 mi (10,704.65 km) |
| Tucson Mountains to Sredets | 6,640.99 mi (10,687.65 km) |
| Tucson Mountains to Stamboliyski | 6,574.08 mi (10,579.96 km) |
| Tucson Mountains to Stara Zagora | 6,590.88 mi (10,606.99 km) |
| Tucson Mountains to Svilengrad | 6,644.75 mi (10,693.70 km) |
| Tucson Mountains to Svishtov | 6,515.62 mi (10,485.88 km) |
| Tucson Mountains to Targovishte | 6,572.07 mi (10,576.72 km) |
| Tucson Mountains to Teteven | 6,522.50 mi (10,496.95 km) |
| Tucson Mountains to Troyan | 6,537.88 mi (10,521.70 km) |
| Tucson Mountains to Tryavna | 6,562.09 mi (10,560.66 km) |
| Tucson Mountains to Tutrakan | 6,527.65 mi (10,505.24 km) |
| Tucson Mountains to Varna | 6,611.86 mi (10,640.76 km) |
