| Idanha-a-Nova to Chantilly (Virginia) | 3,646.42 mi (5,868.34 km) |
| Idanha-a-Nova to Chaparral (New Mexico) | 5,271.90 mi (8,484.30 km) |
| Idanha-a-Nova to Chapel Hill (North Carolina) | 3,815.33 mi (6,140.18 km) |
| Idanha-a-Nova to Charleston (Illinois) | 4,140.19 mi (6,662.99 km) |
| Idanha-a-Nova to Charleston (South Carolina) | 3,964.61 mi (6,380.42 km) |
| Idanha-a-Nova to Charleston (West Virginia) | 3,865.90 mi (6,221.57 km) |
| Idanha-a-Nova to Charlotte (North Carolina) | 3,927.53 mi (6,320.74 km) |
| Idanha-a-Nova to Charlottesville (Virginia) | 3,722.46 mi (5,990.72 km) |
| Idanha-a-Nova to Chaska (Minnesota) | 4,206.28 mi (6,769.35 km) |
| Idanha-a-Nova to Chatham (Illinois) | 4,204.26 mi (6,766.10 km) |
| Idanha-a-Nova to Chattanooga (Tennessee) | 4,150.10 mi (6,678.94 km) |
| Idanha-a-Nova to Cheat Lake (West Virginia) | 3,740.15 mi (6,019.20 km) |
| Idanha-a-Nova to Chelsea (Alabama) | 4,279.35 mi (6,886.95 km) |
| Idanha-a-Nova to Chelsea (Massachusetts) | 3,243.42 mi (5,219.78 km) |
| Idanha-a-Nova to Cheney (Washington) | 5,041.93 mi (8,114.21 km) |
