| Dumbarton to Lizzano | 1,465.42 mi (2,358.37 km) |
| Dumbarton to Locate di Triulzi | 945.66 mi (1,521.89 km) |
| Dumbarton to Locorotondo | 1,441.27 mi (2,319.50 km) |
| Dumbarton to Locri | 1,555.20 mi (2,502.85 km) |
| Dumbarton to Lodi | 955.35 mi (1,537.49 km) |
| Dumbarton to Lomazzo | 920.71 mi (1,481.74 km) |
| Dumbarton to Lonate Pozzolo | 918.66 mi (1,478.44 km) |
| Dumbarton to Lonigo | 1,005.73 mi (1,618.56 km) |
| Dumbarton to Loreto | 1,179.12 mi (1,897.61 km) |
| Dumbarton to Loria | 1,001.36 mi (1,611.54 km) |
| Dumbarton to Lucca | 1,067.46 mi (1,717.92 km) |
| Dumbarton to Lucera | 1,339.18 mi (2,155.21 km) |
| Dumbarton to Lugo | 1,074.76 mi (1,729.66 km) |
| Dumbarton to Luino | 895.91 mi (1,441.83 km) |
| Dumbarton to Lurate Caccivio | 916.01 mi (1,474.18 km) |
