| Pen-y-Bont ar Ogwr to Leopoldsburg | 382.26 mi (615.18 km) |
| Pen-y-Bont ar Ogwr to Lessines | 325.95 mi (524.57 km) |
| Pen-y-Bont ar Ogwr to Leuven | 360.83 mi (580.70 km) |
| Pen-y-Bont ar Ogwr to Lichtervelde | 291.87 mi (469.72 km) |
| Pen-y-Bont ar Ogwr to Liedekerke | 334.58 mi (538.45 km) |
| Pen-y-Bont ar Ogwr to Liege | 401.41 mi (646.00 km) |
| Pen-y-Bont ar Ogwr to Lierre | 352.48 mi (567.26 km) |
| Pen-y-Bont ar Ogwr to Lille | 363.12 mi (584.39 km) |
| Pen-y-Bont ar Ogwr to Lint | 349.04 mi (561.73 km) |
| Pen-y-Bont ar Ogwr to Lochristi | 321.26 mi (517.01 km) |
| Pen-y-Bont ar Ogwr to Lokeren | 327.70 mi (527.39 km) |
| Pen-y-Bont ar Ogwr to Lommel | 383.91 mi (617.84 km) |
| Pen-y-Bont ar Ogwr to Londerzeel | 342.32 mi (550.91 km) |
| Pen-y-Bont ar Ogwr to Louvain-la-Neuve | 355.19 mi (571.62 km) |
| Pen-y-Bont ar Ogwr to Lovendegem | 311.23 mi (500.88 km) |
