| Illescas to Isny im Allgau | 864.37 mi (1,391.06 km) |
| Illescas to Isselburg | 946.58 mi (1,523.37 km) |
| Illescas to Issum | 928.96 mi (1,495.02 km) |
| Illescas to Itzehoe | 1,138.47 mi (1,832.20 km) |
| Illescas to Jena | 1,051.93 mi (1,692.92 km) |
| Illescas to Jever | 1,079.47 mi (1,737.25 km) |
| Illescas to Jork | 1,121.80 mi (1,805.36 km) |
| Illescas to Juchen | 906.66 mi (1,459.13 km) |
| Illescas to Julich | 893.04 mi (1,437.22 km) |
| Illescas to Juterbog | 1,148.06 mi (1,847.62 km) |
| Illescas to Kaarst | 916.03 mi (1,474.21 km) |
| Illescas to Kaiserslautern | 857.77 mi (1,380.45 km) |
| Illescas to Kalkar | 936.97 mi (1,507.91 km) |
| Illescas to Kall | 877.92 mi (1,412.87 km) |
| Illescas to Kaltenkirchen | 1,145.31 mi (1,843.19 km) |
