| Southborough to La Union | 937.23 mi (1,508.32 km) |
| Southborough to La Victoria de Acentejo | 1,794.41 mi (2,887.83 km) |
| Southborough to Laguna de Duero | 702.59 mi (1,130.71 km) |
| Southborough to Lalin | 707.70 mi (1,138.93 km) |
| Southborough to Lardero | 616.95 mi (992.89 km) |
| Southborough to Laredo | 562.01 mi (904.46 km) |
| Southborough to Las Cabezas de San Juan | 1,025.99 mi (1,651.17 km) |
| Southborough to Las Palmas | 1,788.62 mi (2,878.51 km) |
| Southborough to Las Rozas de Madrid | 763.23 mi (1,228.30 km) |
| Southborough to Las Torres de Cotillas | 910.41 mi (1,465.16 km) |
| Southborough to Lebrija | 1,032.16 mi (1,661.10 km) |
| Southborough to Leganes | 772.90 mi (1,243.86 km) |
| Southborough to Leon | 651.62 mi (1,048.67 km) |
| Southborough to Lepe | 1,028.23 mi (1,654.77 km) |
| Southborough to Linares | 923.27 mi (1,485.86 km) |
