| Port Huron to La Union | 4,140.21 mi (6,663.03 km) |
| Port Huron to La Victoria de Acentejo | 3,736.88 mi (6,013.94 km) |
| Port Huron to Laguna de Duero | 3,822.87 mi (6,152.32 km) |
| Port Huron to Lalin | 3,634.62 mi (5,849.35 km) |
| Port Huron to Lardero | 3,894.31 mi (6,267.28 km) |
| Port Huron to Laredo | 3,818.85 mi (6,145.85 km) |
| Port Huron to Las Cabezas de San Juan | 3,929.21 mi (6,323.45 km) |
| Port Huron to Las Palmas | 3,800.89 mi (6,116.95 km) |
| Port Huron to Las Rozas de Madrid | 3,898.75 mi (6,274.42 km) |
| Port Huron to Las Torres de Cotillas | 4,108.03 mi (6,611.23 km) |
| Port Huron to Lebrija | 3,925.03 mi (6,316.72 km) |
| Port Huron to Leganes | 3,909.44 mi (6,291.64 km) |
| Port Huron to Leon | 3,750.26 mi (6,035.46 km) |
| Port Huron to Lepe | 3,860.08 mi (6,212.19 km) |
| Port Huron to Linares | 3,996.24 mi (6,431.32 km) |
