| Longmont to Lichtenau | 4,959.89 mi (7,982.17 km) |
| Longmont to Lichtenfels | 5,097.65 mi (8,203.87 km) |
| Longmont to Lichtenstein | 5,117.15 mi (8,235.25 km) |
| Longmont to Lienen | 4,905.80 mi (7,895.12 km) |
| Longmont to Limbach-Oberfrohna | 5,115.36 mi (8,232.38 km) |
| Longmont to Limburg | 4,990.61 mi (8,031.61 km) |
| Longmont to Limburgerhof | 5,046.27 mi (8,121.18 km) |
| Longmont to Lindau | 5,178.39 mi (8,333.81 km) |
| Longmont to Lindenberg im Allgau | 5,183.03 mi (8,341.28 km) |
| Longmont to Lindlar | 4,939.07 mi (7,948.66 km) |
| Longmont to Lingen | 4,867.96 mi (7,834.22 km) |
| Longmont to Linkenheim-Hochstetten | 5,060.80 mi (8,144.56 km) |
| Longmont to Linnich | 4,904.48 mi (7,893.00 km) |
| Longmont to Lippstadt | 4,939.91 mi (7,950.02 km) |
| Longmont to Lobau | 5,162.02 mi (8,307.47 km) |