| Irthlingborough to Los Alamos (New Mexico) | 4,885.94 mi (7,863.16 km) |
| Irthlingborough to Los Altos (California) | 5,313.07 mi (8,550.55 km) |
| Irthlingborough to Los Angeles (California) | 5,389.12 mi (8,672.96 km) |
| Irthlingborough to Los Banos (California) | 5,293.59 mi (8,519.21 km) |
| Irthlingborough to Los Gatos (California) | 5,316.99 mi (8,556.87 km) |
| Irthlingborough to Los Lunas (New Mexico) | 4,961.79 mi (7,985.23 km) |
| Irthlingborough to Los Osos (California) | 5,395.14 mi (8,682.64 km) |
| Irthlingborough to Loudoun Valley Estates (Virginia) | 3,643.10 mi (5,863.01 km) |
| Irthlingborough to Louisville (Colorado) | 4,628.40 mi (7,448.69 km) |
| Irthlingborough to Louisville (Kentucky) | 4,003.84 mi (6,443.55 km) |
| Irthlingborough to Lovejoy (Georgia) | 4,181.54 mi (6,729.53 km) |
| Irthlingborough to Loveland (Colorado) | 4,602.06 mi (7,406.30 km) |
| Irthlingborough to Loveland (Ohio) | 3,897.67 mi (6,272.69 km) |
| Irthlingborough to Loves Park (Illinois) | 3,932.87 mi (6,329.34 km) |
| Irthlingborough to Lovington (New Mexico) | 4,940.86 mi (7,951.55 km) |
