| Idaho Falls to Butzbach | 5,034.48 mi (8,102.22 km) |
| Idaho Falls to Buxtehude | 4,904.21 mi (7,892.56 km) |
| Idaho Falls to Cadolzburg | 5,149.69 mi (8,287.63 km) |
| Idaho Falls to Calbe | 5,043.34 mi (8,116.47 km) |
| Idaho Falls to Calw | 5,126.83 mi (8,250.84 km) |
| Idaho Falls to Castrop-Rauxel | 4,938.08 mi (7,947.07 km) |
| Idaho Falls to Celle | 4,959.21 mi (7,981.08 km) |
| Idaho Falls to Cham | 5,212.41 mi (8,388.56 km) |
| Idaho Falls to Chemnitz | 5,131.82 mi (8,258.86 km) |
| Idaho Falls to Clausthal-Zellerfeld | 5,009.46 mi (8,061.95 km) |
| Idaho Falls to Cloppenburg | 4,891.74 mi (7,872.50 km) |
| Idaho Falls to Coburg | 5,108.81 mi (8,221.83 km) |
| Idaho Falls to Coesfeld | 4,913.23 mi (7,907.08 km) |
| Idaho Falls to Cologne | 4,959.14 mi (7,980.96 km) |
| Idaho Falls to Coswig | 5,133.31 mi (8,261.27 km) |
