| Portsmouth to La Riche | 248.94 mi (400.62 km) |
| Portsmouth to La Roche-sur-Foron | 471.00 mi (758.00 km) |
| Portsmouth to La Roche-sur-Yon | 286.14 mi (460.49 km) |
| Portsmouth to La Rochelle | 321.01 mi (516.61 km) |
| Portsmouth to La Seyne-sur-Mer | 625.09 mi (1,005.99 km) |
| Portsmouth to La Teste-de-Buch | 427.41 mi (687.84 km) |
| Portsmouth to La Trinite | 626.39 mi (1,008.08 km) |
| Portsmouth to La Valette-du-Var | 625.27 mi (1,006.27 km) |
| Portsmouth to Lamballe | 173.70 mi (279.55 km) |
| Portsmouth to Lambersart | 180.15 mi (289.93 km) |
| Portsmouth to Lambesc | 576.50 mi (927.79 km) |
| Portsmouth to Lamorlaye | 193.82 mi (311.93 km) |
| Portsmouth to Lancon-Provence | 577.04 mi (928.66 km) |
| Portsmouth to Landerneau | 215.61 mi (346.99 km) |
| Portsmouth to Landivisiau | 207.23 mi (333.50 km) |
