| Achim to Smolyan | 1,075.97 mi (1,731.60 km) |
| Achim to Sofia | 972.04 mi (1,564.35 km) |
| Achim to Sopot | 1,019.82 mi (1,641.25 km) |
| Achim to Sozopol | 1,131.29 mi (1,820.64 km) |
| Achim to Sredets | 1,117.39 mi (1,798.27 km) |
| Achim to Stamboliyski | 1,040.64 mi (1,674.76 km) |
| Achim to Stara Zagora | 1,060.78 mi (1,707.17 km) |
| Achim to Svilengrad | 1,114.18 mi (1,793.10 km) |
| Achim to Svishtov | 989.67 mi (1,592.73 km) |
| Achim to Targovishte | 1,050.58 mi (1,690.75 km) |
| Achim to Teteven | 989.99 mi (1,593.24 km) |
| Achim to Troyan | 1,006.38 mi (1,619.62 km) |
| Achim to Tryavna | 1,033.14 mi (1,662.68 km) |
| Achim to Tutrakan | 1,012.51 mi (1,629.48 km) |
| Achim to Varna | 1,099.24 mi (1,769.05 km) |
