| Heerlerbaan to Smolyan | 1,094.79 mi (1,761.90 km) |
| Heerlerbaan to Sofia | 991.11 mi (1,595.04 km) |
| Heerlerbaan to Sopot | 1,048.63 mi (1,687.61 km) |
| Heerlerbaan to Sozopol | 1,176.66 mi (1,893.66 km) |
| Heerlerbaan to Sredets | 1,159.22 mi (1,865.59 km) |
| Heerlerbaan to Stamboliyski | 1,063.16 mi (1,710.99 km) |
| Heerlerbaan to Stara Zagora | 1,093.63 mi (1,760.03 km) |
| Heerlerbaan to Svilengrad | 1,144.71 mi (1,842.23 km) |
| Heerlerbaan to Svishtov | 1,031.92 mi (1,660.72 km) |
| Heerlerbaan to Targovishte | 1,096.93 mi (1,765.33 km) |
| Heerlerbaan to Teteven | 1,017.99 mi (1,638.30 km) |
| Heerlerbaan to Troyan | 1,037.19 mi (1,669.19 km) |
| Heerlerbaan to Tryavna | 1,069.04 mi (1,720.45 km) |
| Heerlerbaan to Tutrakan | 1,066.87 mi (1,716.96 km) |
| Heerlerbaan to Varna | 1,152.99 mi (1,855.57 km) |
