| Smolyan to Sint-Gillis-bij-Dendermonde | 1,173.28 mi (1,888.21 km) |
| Smolyan to Sint-Gillis-Waas | 1,178.85 mi (1,897.18 km) |
| Smolyan to Sint-Job-in-'t-Goor | 1,164.09 mi (1,873.42 km) |
| Smolyan to Sint-Joost-ten-Node | 1,157.33 mi (1,862.55 km) |
| Smolyan to Sint-Katelijne-Waver | 1,158.07 mi (1,863.73 km) |
| Smolyan to Sint-Kruis | 1,212.53 mi (1,951.38 km) |
| Smolyan to Sint-Lievens-Houtem | 1,179.65 mi (1,898.47 km) |
| Smolyan to Sint-Martens-Lennik | 1,165.05 mi (1,874.96 km) |
| Smolyan to Sint-Michiels | 1,213.02 mi (1,952.16 km) |
| Smolyan to Sint-Niklaas | 1,176.68 mi (1,893.68 km) |
| Smolyan to Sint-Pieters-Leeuw | 1,160.60 mi (1,867.81 km) |
| Smolyan to Sint-Truiden | 1,125.02 mi (1,810.55 km) |
| Smolyan to Soignies | 1,161.61 mi (1,869.44 km) |
| Smolyan to Soumagne | 1,096.66 mi (1,764.90 km) |
| Smolyan to Spa | 1,088.27 mi (1,751.40 km) |
