| Irthlingborough to Lapua | 1,130.34 mi (1,819.11 km) |
| Irthlingborough to Laukaa | 1,196.79 mi (1,926.04 km) |
| Irthlingborough to Lauritsala | 1,236.49 mi (1,989.93 km) |
| Irthlingborough to Lempaala | 1,100.87 mi (1,771.68 km) |
| Irthlingborough to Leppavirta | 1,253.12 mi (2,016.70 km) |
| Irthlingborough to Lieksa | 1,338.83 mi (2,154.63 km) |
| Irthlingborough to Lieto | 1,038.63 mi (1,671.52 km) |
| Irthlingborough to Liminka | 1,257.59 mi (2,023.89 km) |
| Irthlingborough to Liperi | 1,301.94 mi (2,095.28 km) |
| Irthlingborough to Lohja | 1,084.04 mi (1,744.59 km) |
| Irthlingborough to Loimaa | 1,066.97 mi (1,717.13 km) |
| Irthlingborough to Loviisa | 1,158.88 mi (1,865.04 km) |
| Irthlingborough to Mantsala | 1,132.95 mi (1,823.30 km) |
| Irthlingborough to Mariehamn | 948.70 mi (1,526.78 km) |
| Irthlingborough to Masku | 1,029.61 mi (1,656.99 km) |
