| Boise to Isny im Allgau | 5,333.67 mi (8,583.71 km) |
| Boise to Isselburg | 5,010.32 mi (8,063.33 km) |
| Boise to Issum | 5,024.78 mi (8,086.60 km) |
| Boise to Itzehoe | 4,977.83 mi (8,011.05 km) |
| Boise to Jena | 5,195.50 mi (8,361.36 km) |
| Boise to Jever | 4,955.52 mi (7,975.14 km) |
| Boise to Jork | 5,003.25 mi (8,051.95 km) |
| Boise to Juchen | 5,050.23 mi (8,127.57 km) |
| Boise to Julich | 5,055.79 mi (8,136.51 km) |
| Boise to Juterbog | 5,173.34 mi (8,325.68 km) |
| Boise to Kaarst | 5,047.24 mi (8,122.75 km) |
| Boise to Kaiserslautern | 5,174.39 mi (8,327.37 km) |
| Boise to Kalkar | 5,010.56 mi (8,063.72 km) |
| Boise to Kall | 5,080.97 mi (8,177.04 km) |
| Boise to Kaltenkirchen | 4,993.61 mi (8,036.43 km) |
