| Houghton Regis to Kocaali | 1,652.88 mi (2,660.05 km) |
| Houghton Regis to Kocaeli | 1,626.97 mi (2,618.36 km) |
| Houghton Regis to Konak | 1,622.17 mi (2,610.62 km) |
| Houghton Regis to Konakli | 1,897.58 mi (3,053.86 km) |
| Houghton Regis to Konya | 1,861.01 mi (2,995.01 km) |
| Houghton Regis to Koprukoy | 2,160.24 mi (3,476.57 km) |
| Houghton Regis to Korfez | 1,618.54 mi (2,604.78 km) |
| Houghton Regis to Korkut | 2,208.57 mi (3,554.35 km) |
| Houghton Regis to Kose | 2,056.49 mi (3,309.59 km) |
| Houghton Regis to Kovancilar | 2,128.49 mi (3,425.47 km) |
| Houghton Regis to Koyulhisar | 1,975.66 mi (3,179.52 km) |
| Houghton Regis to Kozan | 2,015.55 mi (3,243.72 km) |
| Houghton Regis to Kozlu | 1,674.37 mi (2,694.64 km) |
| Houghton Regis to Kozluk | 2,219.76 mi (3,572.35 km) |
| Houghton Regis to Kucuk Dalyan | 2,087.79 mi (3,359.97 km) |
