| Idaho Falls to Isny im Allgau | 5,219.73 mi (8,400.34 km) |
| Idaho Falls to Isselburg | 4,899.15 mi (7,884.42 km) |
| Idaho Falls to Issum | 4,912.91 mi (7,906.57 km) |
| Idaho Falls to Itzehoe | 4,875.85 mi (7,846.92 km) |
| Idaho Falls to Jena | 5,090.57 mi (8,192.48 km) |
| Idaho Falls to Jever | 4,850.31 mi (7,805.82 km) |
| Idaho Falls to Jork | 4,900.68 mi (7,886.88 km) |
| Idaho Falls to Juchen | 4,937.55 mi (7,946.22 km) |
| Idaho Falls to Julich | 4,942.50 mi (7,954.19 km) |
| Idaho Falls to Juterbog | 5,073.00 mi (8,164.20 km) |
| Idaho Falls to Kaarst | 4,934.98 mi (7,942.09 km) |
| Idaho Falls to Kaiserslautern | 5,060.24 mi (8,143.66 km) |
| Idaho Falls to Kalkar | 4,898.92 mi (7,884.05 km) |
| Idaho Falls to Kall | 4,967.19 mi (7,993.93 km) |
| Idaho Falls to Kaltenkirchen | 4,892.13 mi (7,873.12 km) |
