| Idaho Falls to Karis | 4,856.19 mi (7,815.28 km) |
| Idaho Falls to Karkkila | 4,839.38 mi (7,788.23 km) |
| Idaho Falls to Kauhajoki | 4,692.83 mi (7,552.38 km) |
| Idaho Falls to Kauhava | 4,670.15 mi (7,515.89 km) |
| Idaho Falls to Kauniainen | 4,867.29 mi (7,833.14 km) |
| Idaho Falls to Kemi | 4,542.66 mi (7,310.70 km) |
| Idaho Falls to Kemijarvi | 4,527.88 mi (7,286.92 km) |
| Idaho Falls to Kempele | 4,605.26 mi (7,411.46 km) |
| Idaho Falls to Kerava | 4,863.11 mi (7,826.42 km) |
| Idaho Falls to Keuruu | 4,747.26 mi (7,639.98 km) |
| Idaho Falls to Kiiminki | 4,596.49 mi (7,397.34 km) |
| Idaho Falls to Kirkkonummi | 4,867.39 mi (7,833.31 km) |
| Idaho Falls to Kitee | 4,844.80 mi (7,796.96 km) |
| Idaho Falls to Kiuruvesi | 4,696.95 mi (7,559.00 km) |
| Idaho Falls to Kivisto | 4,863.03 mi (7,826.29 km) |
