| South Portland to Sint-Gillis-bij-Dendermonde | 3,370.84 mi (5,424.85 km) |
| South Portland to Sint-Gillis-Waas | 3,366.16 mi (5,417.32 km) |
| South Portland to Sint-Job-in-'t-Goor | 3,382.05 mi (5,442.88 km) |
| South Portland to Sint-Joost-ten-Node | 3,386.44 mi (5,449.96 km) |
| South Portland to Sint-Katelijne-Waver | 3,386.80 mi (5,450.52 km) |
| South Portland to Sint-Kruis | 3,331.43 mi (5,361.42 km) |
| South Portland to Sint-Lievens-Houtem | 3,363.85 mi (5,413.60 km) |
| South Portland to Sint-Martens-Lennik | 3,378.34 mi (5,436.91 km) |
| South Portland to Sint-Michiels | 3,330.81 mi (5,360.42 km) |
| South Portland to Sint-Niklaas | 3,368.12 mi (5,420.47 km) |
| South Portland to Sint-Pieters-Leeuw | 3,382.82 mi (5,444.12 km) |
| South Portland to Sint-Truiden | 3,419.56 mi (5,503.24 km) |
| South Portland to Soignies | 3,381.09 mi (5,441.34 km) |
| South Portland to Soumagne | 3,447.78 mi (5,548.67 km) |
| South Portland to Spa | 3,455.79 mi (5,561.56 km) |
