| Boadilla del Monte to Karditsa | 1,364.41 mi (2,195.81 km) |
| Boadilla del Monte to Kastoria | 1,317.18 mi (2,119.80 km) |
| Boadilla del Monte to Katerini | 1,383.92 mi (2,227.20 km) |
| Boadilla del Monte to Keratsini | 1,475.89 mi (2,375.22 km) |
| Boadilla del Monte to Kerkyra | 1,256.58 mi (2,022.27 km) |
| Boadilla del Monte to Kiato | 1,429.51 mi (2,300.57 km) |
| Boadilla del Monte to Kifisia | 1,484.31 mi (2,388.77 km) |
| Boadilla del Monte to Kilkis | 1,395.97 mi (2,246.59 km) |
| Boadilla del Monte to Komotini | 1,526.63 mi (2,456.88 km) |
| Boadilla del Monte to Korinthos | 1,440.15 mi (2,317.70 km) |
| Boadilla del Monte to Koropi | 1,490.60 mi (2,398.89 km) |
| Boadilla del Monte to Korydallos | 1,477.34 mi (2,377.56 km) |
| Boadilla del Monte to Kos | 1,688.14 mi (2,716.79 km) |
| Boadilla del Monte to Kozani | 1,346.24 mi (2,166.56 km) |
| Boadilla del Monte to Lagos | 1,506.74 mi (2,424.87 km) |
