| Idaho Falls to Kelkheim (Taunus) | 5,043.99 mi (8,117.51 km) |
| Idaho Falls to Kelsterbach | 5,050.33 mi (8,127.71 km) |
| Idaho Falls to Kemberg | 5,072.73 mi (8,163.78 km) |
| Idaho Falls to Kempen | 4,921.63 mi (7,920.59 km) |
| Idaho Falls to Kempten | 5,225.69 mi (8,409.93 km) |
| Idaho Falls to Kenzingen | 5,125.57 mi (8,248.81 km) |
| Idaho Falls to Kerpen | 4,954.96 mi (7,974.24 km) |
| Idaho Falls to Ketsch | 5,086.85 mi (8,186.50 km) |
| Idaho Falls to Kevelaer | 4,905.62 mi (7,894.82 km) |
| Idaho Falls to Kiel | 4,871.51 mi (7,839.93 km) |
| Idaho Falls to Kierspe | 4,966.75 mi (7,993.21 km) |
| Idaho Falls to Kirchhain | 5,021.86 mi (8,081.90 km) |
| Idaho Falls to Kirchheim bei Munchen | 5,243.59 mi (8,438.75 km) |
| Idaho Falls to Kirchheim unter Teck | 5,151.56 mi (8,290.63 km) |
| Idaho Falls to Kirchhundem | 4,983.30 mi (8,019.84 km) |
