| Letchworth to Ittiri | 889.80 mi (1,432.00 km) |
| Letchworth to Ivrea | 581.36 mi (935.61 km) |
| Letchworth to L'Aquila | 920.40 mi (1,481.23 km) |
| Letchworth to La Loggia | 604.37 mi (972.64 km) |
| Letchworth to La Maddalena | 871.16 mi (1,402.00 km) |
| Letchworth to La Spezia | 714.00 mi (1,149.07 km) |
| Letchworth to Lacchiarella | 626.90 mi (1,008.89 km) |
| Letchworth to Ladispoli | 900.95 mi (1,449.95 km) |
| Letchworth to Lainate | 610.76 mi (982.92 km) |
| Letchworth to Laives | 646.78 mi (1,040.89 km) |
| Letchworth to Lana | 631.25 mi (1,015.90 km) |
| Letchworth to Lanciano | 958.72 mi (1,542.91 km) |
| Letchworth to Langhirano | 699.71 mi (1,126.07 km) |
| Letchworth to Lanuvio | 935.01 mi (1,504.75 km) |
| Letchworth to Lariano | 936.29 mi (1,506.81 km) |
