| Irthlingborough to Kucukcekmece | 1,583.40 mi (2,548.23 km) |
| Irthlingborough to Kucukkuyu | 1,563.48 mi (2,516.17 km) |
| Irthlingborough to Kulp | 2,194.35 mi (3,531.47 km) |
| Irthlingborough to Kulu | 1,841.49 mi (2,963.59 km) |
| Irthlingborough to Kumcati | 2,294.58 mi (3,692.78 km) |
| Irthlingborough to Kursunlu | 1,771.74 mi (2,851.34 km) |
| Irthlingborough to Kurtalan | 2,248.53 mi (3,618.66 km) |
| Irthlingborough to Kusadasi | 1,670.14 mi (2,687.84 km) |
| Irthlingborough to Kutahya | 1,702.04 mi (2,739.17 km) |
| Irthlingborough to Kuzuculu | 2,071.04 mi (3,333.01 km) |
| Irthlingborough to Lapseki | 1,528.92 mi (2,460.56 km) |
| Irthlingborough to Lice | 2,181.55 mi (3,510.87 km) |
| Irthlingborough to Luleburgaz | 1,507.71 mi (2,426.42 km) |
| Irthlingborough to Macka | 2,037.24 mi (3,278.62 km) |
| Irthlingborough to Malatya | 2,089.34 mi (3,362.46 km) |
