| Houghton Regis to Kucukcekmece | 1,571.09 mi (2,528.42 km) |
| Houghton Regis to Kucukkuyu | 1,548.60 mi (2,492.23 km) |
| Houghton Regis to Kulp | 2,186.21 mi (3,518.36 km) |
| Houghton Regis to Kulu | 1,829.88 mi (2,944.91 km) |
| Houghton Regis to Kumcati | 2,286.31 mi (3,679.46 km) |
| Houghton Regis to Kursunlu | 1,761.68 mi (2,835.16 km) |
| Houghton Regis to Kurtalan | 2,240.29 mi (3,605.40 km) |
| Houghton Regis to Kusadasi | 1,654.32 mi (2,662.37 km) |
| Houghton Regis to Kutahya | 1,689.01 mi (2,718.20 km) |
| Houghton Regis to Kuzuculu | 2,059.42 mi (3,314.31 km) |
| Houghton Regis to Lapseki | 1,514.77 mi (2,437.79 km) |
| Houghton Regis to Lice | 2,173.20 mi (3,497.43 km) |
| Houghton Regis to Luleburgaz | 1,494.95 mi (2,405.89 km) |
| Houghton Regis to Macka | 2,030.23 mi (3,267.34 km) |
| Houghton Regis to Malatya | 2,079.80 mi (3,347.12 km) |
