| Dumbarton to Lastra a Signa | 1,088.22 mi (1,751.32 km) |
| Dumbarton to Laterza | 1,432.12 mi (2,304.78 km) |
| Dumbarton to Latiano | 1,465.72 mi (2,358.85 km) |
| Dumbarton to Latina | 1,271.40 mi (2,046.12 km) |
| Dumbarton to Latisana | 1,037.58 mi (1,669.83 km) |
| Dumbarton to Lauria Inferiore | 1,436.76 mi (2,312.24 km) |
| Dumbarton to Lavagna | 1,008.48 mi (1,623.00 km) |
| Dumbarton to Lavello | 1,378.55 mi (2,218.56 km) |
| Dumbarton to Laveno-Mombello | 897.52 mi (1,444.42 km) |
| Dumbarton to Lavis | 957.16 mi (1,540.40 km) |
| Dumbarton to Lecce | 1,489.88 mi (2,397.72 km) |
| Dumbarton to Lecco | 922.47 mi (1,484.58 km) |
| Dumbarton to Legnago | 1,014.04 mi (1,631.94 km) |
| Dumbarton to Legnano | 924.49 mi (1,487.82 km) |
| Dumbarton to Legnaro | 1,025.02 mi (1,649.61 km) |
