| Mercer Island to Lapua | 4,565.44 mi (7,347.37 km) |
| Mercer Island to Laukaa | 4,638.03 mi (7,464.20 km) |
| Mercer Island to Lauritsala | 4,752.42 mi (7,648.28 km) |
| Mercer Island to Lempaala | 4,679.32 mi (7,530.64 km) |
| Mercer Island to Leppavirta | 4,655.29 mi (7,491.97 km) |
| Mercer Island to Lieksa | 4,626.76 mi (7,446.06 km) |
| Mercer Island to Lieto | 4,712.60 mi (7,584.20 km) |
| Mercer Island to Liminka | 4,479.62 mi (7,209.26 km) |
| Mercer Island to Liperi | 4,670.73 mi (7,516.81 km) |
| Mercer Island to Lohja | 4,751.04 mi (7,646.06 km) |
| Mercer Island to Loimaa | 4,699.22 mi (7,562.66 km) |
| Mercer Island to Loviisa | 4,766.66 mi (7,671.20 km) |
| Mercer Island to Mantsala | 4,743.57 mi (7,634.03 km) |
| Mercer Island to Mariehamn | 4,700.19 mi (7,564.22 km) |
| Mercer Island to Masku | 4,703.15 mi (7,568.99 km) |
