| Ercis to Smolyan | 996.81 mi (1,604.21 km) |
| Ercis to Sofia | 1,074.05 mi (1,728.52 km) |
| Ercis to Sopot | 1,002.09 mi (1,612.70 km) |
| Ercis to Sozopol | 851.29 mi (1,370.01 km) |
| Ercis to Sredets | 875.58 mi (1,409.11 km) |
| Ercis to Stamboliyski | 1,008.66 mi (1,623.29 km) |
| Ercis to Stara Zagora | 954.60 mi (1,536.28 km) |
| Ercis to Svilengrad | 920.82 mi (1,481.92 km) |
| Ercis to Svishtov | 984.36 mi (1,584.17 km) |
| Ercis to Targovishte | 918.42 mi (1,478.06 km) |
| Ercis to Teteven | 1,029.03 mi (1,656.06 km) |
| Ercis to Troyan | 1,006.17 mi (1,619.27 km) |
| Ercis to Tryavna | 966.86 mi (1,556.01 km) |
| Ercis to Tutrakan | 930.60 mi (1,497.66 km) |
| Ercis to Varna | 852.66 mi (1,372.23 km) |
