| Reston to Cividale del Friuli | 4,389.93 mi (7,064.92 km) |
| Reston to Civita Castellana | 4,478.48 mi (7,207.41 km) |
| Reston to Civitanova Marche | 4,500.45 mi (7,242.77 km) |
| Reston to Civitavecchia | 4,458.52 mi (7,175.29 km) |
| Reston to Civitella in Val di Chiana | 4,409.05 mi (7,095.68 km) |
| Reston to Clusone | 4,250.62 mi (6,840.71 km) |
| Reston to Coccaglio | 4,262.20 mi (6,859.34 km) |
| Reston to Codigoro | 4,377.72 mi (7,045.26 km) |
| Reston to Codogno | 4,263.61 mi (6,861.62 km) |
| Reston to Codroipo | 4,375.69 mi (7,041.99 km) |
| Reston to Cogoleto | 4,242.77 mi (6,828.08 km) |
| Reston to Colle di Val d'Elsa | 4,384.21 mi (7,055.71 km) |
| Reston to Colle Salvetti | 4,349.05 mi (6,999.12 km) |
| Reston to Collecchio | 4,299.08 mi (6,918.70 km) |
| Reston to Colleferro | 4,525.20 mi (7,282.61 km) |
