| Dumbarton to Lapua | 1,071.42 mi (1,724.28 km) |
| Dumbarton to Laukaa | 1,155.20 mi (1,859.12 km) |
| Dumbarton to Lauritsala | 1,221.68 mi (1,966.11 km) |
| Dumbarton to Lempaala | 1,073.49 mi (1,727.61 km) |
| Dumbarton to Leppavirta | 1,214.07 mi (1,953.86 km) |
| Dumbarton to Lieksa | 1,290.72 mi (2,077.21 km) |
| Dumbarton to Lieto | 1,023.54 mi (1,647.23 km) |
| Dumbarton to Liminka | 1,176.32 mi (1,893.10 km) |
| Dumbarton to Liperi | 1,264.97 mi (2,035.77 km) |
| Dumbarton to Lohja | 1,077.21 mi (1,733.60 km) |
| Dumbarton to Loimaa | 1,046.63 mi (1,684.38 km) |
| Dumbarton to Loviisa | 1,151.84 mi (1,853.71 km) |
| Dumbarton to Mantsala | 1,121.30 mi (1,804.56 km) |
| Dumbarton to Mariehamn | 934.84 mi (1,504.48 km) |
| Dumbarton to Masku | 1,012.25 mi (1,629.06 km) |
