| Darton to Smolyan | 1,463.84 mi (2,355.82 km) |
| Darton to Sofia | 1,359.91 mi (2,188.57 km) |
| Darton to Sopot | 1,416.03 mi (2,278.88 km) |
| Darton to Sozopol | 1,540.37 mi (2,478.99 km) |
| Darton to Sredets | 1,523.91 mi (2,452.49 km) |
| Darton to Stamboliyski | 1,431.65 mi (2,304.03 km) |
| Darton to Stara Zagora | 1,460.34 mi (2,350.18 km) |
| Darton to Svilengrad | 1,512.03 mi (2,433.37 km) |
| Darton to Svishtov | 1,396.05 mi (2,246.73 km) |
| Darton to Targovishte | 1,460.07 mi (2,349.76 km) |
| Darton to Teteven | 1,385.45 mi (2,229.67 km) |
| Darton to Troyan | 1,404.16 mi (2,259.77 km) |
| Darton to Tryavna | 1,434.98 mi (2,309.37 km) |
| Darton to Tutrakan | 1,427.14 mi (2,296.76 km) |
| Darton to Varna | 1,513.81 mi (2,436.24 km) |
