| Southborough to Illzach | 394.17 mi (634.36 km) |
| Southborough to Ingre | 234.45 mi (377.32 km) |
| Southborough to Irigny | 432.68 mi (696.34 km) |
| Southborough to Isbergues | 102.45 mi (164.88 km) |
| Southborough to Issoire | 411.39 mi (662.06 km) |
| Southborough to Issoudun | 301.31 mi (484.92 km) |
| Southborough to Issy-les-Moulineaux | 184.32 mi (296.63 km) |
| Southborough to Istres | 572.35 mi (921.10 km) |
| Southborough to Ivry-sur-Seine | 187.58 mi (301.88 km) |
| Southborough to Jarville-la-Malgrange | 315.24 mi (507.33 km) |
| Southborough to Jeumont | 178.09 mi (286.61 km) |
| Southborough to Joigny | 260.52 mi (419.26 km) |
| Southborough to Joinville-le-Pont | 188.98 mi (304.13 km) |
| Southborough to Joue-les-Tours | 263.74 mi (424.45 km) |
| Southborough to Jouy-le-Moutier | 168.00 mi (270.37 km) |
