| Castlebar to Leopoldsburg | 639.69 mi (1,029.48 km) |
| Castlebar to Lessines | 594.90 mi (957.41 km) |
| Castlebar to Leuven | 624.08 mi (1,004.36 km) |
| Castlebar to Lichtervelde | 557.89 mi (897.84 km) |
| Castlebar to Liedekerke | 600.20 mi (965.92 km) |
| Castlebar to Liege | 665.68 mi (1,071.30 km) |
| Castlebar to Lierre | 611.76 mi (984.53 km) |
| Castlebar to Lille | 619.70 mi (997.31 km) |
| Castlebar to Lint | 608.89 mi (979.92 km) |
| Castlebar to Lochristi | 583.57 mi (939.16 km) |
| Castlebar to Lokeren | 589.51 mi (948.72 km) |
| Castlebar to Lommel | 639.04 mi (1,028.43 km) |
| Castlebar to Londerzeel | 604.89 mi (973.47 km) |
| Castlebar to Louvain-la-Neuve | 622.60 mi (1,001.98 km) |
| Castlebar to Lovendegem | 574.34 mi (924.32 km) |
