| Casper to Isny im Allgau | 5,079.55 mi (8,174.75 km) |
| Casper to Isselburg | 4,764.27 mi (7,667.35 km) |
| Casper to Issum | 4,776.95 mi (7,687.76 km) |
| Casper to Itzehoe | 4,754.47 mi (7,651.58 km) |
| Casper to Jena | 4,964.00 mi (7,988.79 km) |
| Casper to Jever | 4,724.34 mi (7,603.09 km) |
| Casper to Jork | 4,778.35 mi (7,690.01 km) |
| Casper to Juchen | 4,800.30 mi (7,725.33 km) |
| Casper to Julich | 4,804.35 mi (7,731.86 km) |
| Casper to Juterbog | 4,953.18 mi (7,971.37 km) |
| Casper to Kaarst | 4,798.36 mi (7,722.22 km) |
| Casper to Kaiserslautern | 4,920.36 mi (7,918.55 km) |
| Casper to Kalkar | 4,763.36 mi (7,665.88 km) |
| Casper to Kall | 4,828.23 mi (7,770.28 km) |
| Casper to Kaltenkirchen | 4,771.41 mi (7,678.84 km) |
