| Boadilla del Monte to Isny im Allgau | 852.78 mi (1,372.42 km) |
| Boadilla del Monte to Isselburg | 929.93 mi (1,496.58 km) |
| Boadilla del Monte to Issum | 912.45 mi (1,468.45 km) |
| Boadilla del Monte to Itzehoe | 1,121.99 mi (1,805.66 km) |
| Boadilla del Monte to Jena | 1,037.99 mi (1,670.49 km) |
| Boadilla del Monte to Jever | 1,062.59 mi (1,710.07 km) |
| Boadilla del Monte to Jork | 1,105.55 mi (1,779.21 km) |
| Boadilla del Monte to Juchen | 890.42 mi (1,432.99 km) |
| Boadilla del Monte to Julich | 876.84 mi (1,411.13 km) |
| Boadilla del Monte to Juterbog | 1,133.88 mi (1,824.81 km) |
| Boadilla del Monte to Kaarst | 899.78 mi (1,448.05 km) |
| Boadilla del Monte to Kaiserslautern | 843.30 mi (1,357.16 km) |
| Boadilla del Monte to Kalkar | 920.30 mi (1,481.07 km) |
| Boadilla del Monte to Kall | 862.03 mi (1,387.30 km) |
| Boadilla del Monte to Kaltenkirchen | 1,129.01 mi (1,816.96 km) |
