| Irthlingborough to Lichtenau | 407.12 mi (655.20 km) |
| Irthlingborough to Lichtenfels | 525.51 mi (845.73 km) |
| Irthlingborough to Lichtenstein | 578.56 mi (931.11 km) |
| Irthlingborough to Lienen | 363.39 mi (584.81 km) |
| Irthlingborough to Limbach-Oberfrohna | 581.50 mi (935.83 km) |
| Irthlingborough to Limburg | 397.54 mi (639.79 km) |
| Irthlingborough to Limburgerhof | 440.46 mi (708.86 km) |
| Irthlingborough to Lindau | 563.68 mi (907.16 km) |
| Irthlingborough to Lindenberg im Allgau | 569.13 mi (915.93 km) |
| Irthlingborough to Lindlar | 354.19 mi (570.01 km) |
| Irthlingborough to Lingen | 334.54 mi (538.39 km) |
| Irthlingborough to Linkenheim-Hochstetten | 451.88 mi (727.23 km) |
| Irthlingborough to Linnich | 309.16 mi (497.55 km) |
| Irthlingborough to Lippstadt | 383.79 mi (617.66 km) |
| Irthlingborough to Lobau | 658.46 mi (1,059.69 km) |
