| Caernarfon to Leopoldsburg | 427.15 mi (687.43 km) |
| Caernarfon to Lessines | 383.41 mi (617.04 km) |
| Caernarfon to Leuven | 411.74 mi (662.64 km) |
| Caernarfon to Lichtervelde | 346.16 mi (557.09 km) |
| Caernarfon to Liedekerke | 388.17 mi (624.70 km) |
| Caernarfon to Liege | 453.32 mi (729.55 km) |
| Caernarfon to Lierre | 399.25 mi (642.53 km) |
| Caernarfon to Lille | 407.16 mi (655.26 km) |
| Caernarfon to Lint | 396.41 mi (637.96 km) |
| Caernarfon to Lochristi | 371.28 mi (597.52 km) |
| Caernarfon to Lokeren | 377.17 mi (606.99 km) |
| Caernarfon to Lommel | 426.54 mi (686.46 km) |
| Caernarfon to Londerzeel | 392.56 mi (631.76 km) |
| Caernarfon to Louvain-la-Neuve | 410.71 mi (660.97 km) |
| Caernarfon to Lovendegem | 362.16 mi (582.84 km) |
