| Southborough to Irun | 548.91 mi (883.38 km) |
| Southborough to Isla-Cristina | 1,033.90 mi (1,663.90 km) |
| Southborough to Jaca | 596.11 mi (959.35 km) |
| Southborough to Jaen | 946.16 mi (1,522.70 km) |
| Southborough to Jerez de la Frontera | 1,048.87 mi (1,687.99 km) |
| Southborough to Jerez de los Caballeros | 950.89 mi (1,530.31 km) |
| Southborough to Jodar | 937.55 mi (1,508.84 km) |
| Southborough to Jumilla | 879.55 mi (1,415.50 km) |
| Southborough to La Algaba | 995.71 mi (1,602.44 km) |
| Southborough to La Baneza | 677.83 mi (1,090.86 km) |
| Southborough to La Carlota | 966.32 mi (1,555.14 km) |
| Southborough to La Carolina | 910.65 mi (1,465.55 km) |
| Southborough to La Corredoria | 607.74 mi (978.06 km) |
| Southborough to La Eliana | 801.96 mi (1,290.63 km) |
| Southborough to La Escala | 639.55 mi (1,029.26 km) |
