| Dumbarton to Leopoldsburg | 522.81 mi (841.39 km) |
| Dumbarton to Lessines | 500.19 mi (804.98 km) |
| Dumbarton to Leuven | 517.06 mi (832.13 km) |
| Dumbarton to Lichtervelde | 463.78 mi (746.38 km) |
| Dumbarton to Liedekerke | 499.59 mi (804.02 km) |
| Dumbarton to Liege | 555.68 mi (894.28 km) |
| Dumbarton to Lierre | 500.65 mi (805.72 km) |
| Dumbarton to Lille | 504.03 mi (811.15 km) |
| Dumbarton to Lint | 498.92 mi (802.94 km) |
| Dumbarton to Lochristi | 480.35 mi (773.05 km) |
| Dumbarton to Lokeren | 484.77 mi (780.15 km) |
| Dumbarton to Lommel | 519.25 mi (835.64 km) |
| Dumbarton to Londerzeel | 499.21 mi (803.41 km) |
| Dumbarton to Louvain-la-Neuve | 522.05 mi (840.16 km) |
| Dumbarton to Lovendegem | 473.55 mi (762.11 km) |
