| Mierlo to Smolyan | 1,128.83 mi (1,816.67 km) |
| Mierlo to Sofia | 1,024.89 mi (1,649.40 km) |
| Mierlo to Sopot | 1,081.22 mi (1,740.06 km) |
| Mierlo to Sozopol | 1,207.10 mi (1,942.65 km) |
| Mierlo to Sredets | 1,190.17 mi (1,915.39 km) |
| Mierlo to Stamboliyski | 1,096.64 mi (1,764.87 km) |
| Mierlo to Stara Zagora | 1,125.75 mi (1,811.72 km) |
| Mierlo to Svilengrad | 1,177.26 mi (1,894.61 km) |
| Mierlo to Svishtov | 1,062.53 mi (1,709.98 km) |
| Mierlo to Targovishte | 1,127.06 mi (1,813.83 km) |
| Mierlo to Teteven | 1,050.62 mi (1,690.82 km) |
| Mierlo to Troyan | 1,069.47 mi (1,721.15 km) |
| Mierlo to Tryavna | 1,100.67 mi (1,771.36 km) |
| Mierlo to Tutrakan | 1,095.67 mi (1,763.31 km) |
| Mierlo to Varna | 1,182.08 mi (1,902.37 km) |
