| Tondela to Smolyan | 1,699.50 mi (2,735.08 km) |
| Tondela to Sofia | 1,620.45 mi (2,607.87 km) |
| Tondela to Sopot | 1,692.56 mi (2,723.92 km) |
| Tondela to Sozopol | 1,843.59 mi (2,966.97 km) |
| Tondela to Sredets | 1,818.97 mi (2,927.35 km) |
| Tondela to Stamboliyski | 1,685.78 mi (2,713.00 km) |
| Tondela to Stara Zagora | 1,739.81 mi (2,799.96 km) |
| Tondela to Svilengrad | 1,774.12 mi (2,855.17 km) |
| Tondela to Svishtov | 1,716.46 mi (2,762.38 km) |
| Tondela to Targovishte | 1,780.38 mi (2,865.24 km) |
| Tondela to Teteven | 1,666.31 mi (2,681.67 km) |
| Tondela to Troyan | 1,689.21 mi (2,718.51 km) |
| Tondela to Tryavna | 1,728.77 mi (2,782.19 km) |
| Tondela to Tutrakan | 1,777.13 mi (2,860.02 km) |
| Tondela to Varna | 1,847.35 mi (2,973.02 km) |
