| Portlethen to Lapua | 951.04 mi (1,530.55 km) |
| Portlethen to Laukaa | 1,035.29 mi (1,666.14 km) |
| Portlethen to Lauritsala | 1,103.31 mi (1,775.60 km) |
| Portlethen to Lempaala | 954.57 mi (1,536.23 km) |
| Portlethen to Leppavirta | 1,094.19 mi (1,760.92 km) |
| Portlethen to Lieksa | 1,170.43 mi (1,883.63 km) |
| Portlethen to Lieto | 905.81 mi (1,457.77 km) |
| Portlethen to Liminka | 1,055.97 mi (1,699.42 km) |
| Portlethen to Liperi | 1,145.11 mi (1,842.88 km) |
| Portlethen to Lohja | 960.06 mi (1,545.06 km) |
| Portlethen to Loimaa | 928.34 mi (1,494.02 km) |
| Portlethen to Loviisa | 1,034.37 mi (1,664.66 km) |
| Portlethen to Mantsala | 1,003.51 mi (1,614.99 km) |
| Portlethen to Mariehamn | 817.68 mi (1,315.92 km) |
| Portlethen to Masku | 894.37 mi (1,439.34 km) |
