| Llantrisant to Lizzano | 1,254.82 mi (2,019.44 km) |
| Llantrisant to Locate di Triulzi | 716.77 mi (1,153.53 km) |
| Llantrisant to Locorotondo | 1,232.64 mi (1,983.74 km) |
| Llantrisant to Locri | 1,322.09 mi (2,127.69 km) |
| Llantrisant to Lodi | 728.67 mi (1,172.68 km) |
| Llantrisant to Lomazzo | 694.30 mi (1,117.36 km) |
| Llantrisant to Lonate Pozzolo | 688.38 mi (1,107.83 km) |
| Llantrisant to Lonigo | 796.70 mi (1,282.17 km) |
| Llantrisant to Loreto | 966.89 mi (1,556.06 km) |
| Llantrisant to Loria | 801.08 mi (1,289.22 km) |
| Llantrisant to Lucca | 834.04 mi (1,342.26 km) |
| Llantrisant to Lucera | 1,122.50 mi (1,806.49 km) |
| Llantrisant to Lugo | 859.02 mi (1,382.46 km) |
| Llantrisant to Luino | 670.58 mi (1,079.19 km) |
| Llantrisant to Lurate Caccivio | 690.11 mi (1,110.62 km) |
