| Sintra to Smolyan | 1,797.68 mi (2,893.09 km) |
| Sintra to Sofia | 1,722.63 mi (2,772.30 km) |
| Sintra to Sopot | 1,794.84 mi (2,888.52 km) |
| Sintra to Sozopol | 1,945.81 mi (3,131.48 km) |
| Sintra to Sredets | 1,920.81 mi (3,091.25 km) |
| Sintra to Stamboliyski | 1,786.04 mi (2,874.35 km) |
| Sintra to Stara Zagora | 1,841.51 mi (2,963.62 km) |
| Sintra to Svilengrad | 1,873.53 mi (3,015.15 km) |
| Sintra to Svishtov | 1,822.37 mi (2,932.82 km) |
| Sintra to Targovishte | 1,885.21 mi (3,033.95 km) |
| Sintra to Teteven | 1,769.50 mi (2,847.73 km) |
| Sintra to Troyan | 1,792.35 mi (2,884.51 km) |
| Sintra to Tryavna | 1,832.02 mi (2,948.35 km) |
| Sintra to Tutrakan | 1,884.69 mi (3,033.12 km) |
| Sintra to Varna | 1,952.35 mi (3,142.00 km) |
