| Port Huron to Lapua | 4,059.35 mi (6,532.89 km) |
| Port Huron to Laukaa | 4,157.39 mi (6,690.68 km) |
| Port Huron to Lauritsala | 4,274.15 mi (6,878.58 km) |
| Port Huron to Lempaala | 4,144.63 mi (6,670.14 km) |
| Port Huron to Leppavirta | 4,200.82 mi (6,760.56 km) |
| Port Huron to Lieksa | 4,219.80 mi (6,791.11 km) |
| Port Huron to Lieto | 4,141.84 mi (6,665.64 km) |
| Port Huron to Liminka | 4,046.83 mi (6,512.75 km) |
| Port Huron to Liperi | 4,238.72 mi (6,821.57 km) |
| Port Huron to Lohja | 4,196.71 mi (6,753.96 km) |
| Port Huron to Loimaa | 4,144.64 mi (6,670.15 km) |
| Port Huron to Loviisa | 4,246.99 mi (6,834.87 km) |
| Port Huron to Mantsala | 4,214.94 mi (6,783.29 km) |
| Port Huron to Mariehamn | 4,086.43 mi (6,576.47 km) |
| Port Huron to Masku | 4,129.30 mi (6,645.47 km) |
