| Southborough to Plombieres | 249.15 mi (400.98 km) |
| Southborough to Pont-a-Celles | 183.97 mi (296.08 km) |
| Southborough to Poperinge | 109.02 mi (175.45 km) |
| Southborough to Profondeville | 208.33 mi (335.27 km) |
| Southborough to Putte | 189.63 mi (305.18 km) |
| Southborough to Puurs | 174.21 mi (280.37 km) |
| Southborough to Quaregnon | 165.08 mi (265.67 km) |
| Southborough to Raeren | 256.91 mi (413.46 km) |
| Southborough to Ranst | 185.58 mi (298.67 km) |
| Southborough to Ravels | 205.17 mi (330.19 km) |
| Southborough to Retie | 207.91 mi (334.60 km) |
| Southborough to Riemst | 233.34 mi (375.52 km) |
| Southborough to Rijkevorsel | 195.07 mi (313.93 km) |
| Southborough to Rixensart | 188.31 mi (303.05 km) |
| Southborough to Rochefort | 227.40 mi (365.97 km) |
