| Idaho Falls to Celano | 5,630.86 mi (9,062.00 km) |
| Idaho Falls to Cento | 5,416.27 mi (8,716.65 km) |
| Idaho Falls to Cepagatti | 5,630.78 mi (9,061.87 km) |
| Idaho Falls to Ceprano | 5,659.36 mi (9,107.86 km) |
| Idaho Falls to Cercola | 5,723.05 mi (9,210.37 km) |
| Idaho Falls to Cerea | 5,388.95 mi (8,672.67 km) |
| Idaho Falls to Cerese | 5,382.91 mi (8,662.96 km) |
| Idaho Falls to Cerignola | 5,747.62 mi (9,249.91 km) |
| Idaho Falls to Cermenate | 5,297.02 mi (8,524.74 km) |
| Idaho Falls to Cernusco sul Naviglio | 5,314.48 mi (8,552.84 km) |
| Idaho Falls to Cerreto Guidi | 5,456.42 mi (8,781.26 km) |
| Idaho Falls to Cerro Maggiore | 5,298.23 mi (8,526.67 km) |
| Idaho Falls to Certaldo | 5,473.18 mi (8,808.23 km) |
| Idaho Falls to Cerveteri | 5,590.58 mi (8,997.17 km) |
| Idaho Falls to Cervia | 5,474.62 mi (8,810.55 km) |
