| Bostonia to Cividale del Friuli | 6,166.95 mi (9,924.74 km) |
| Bostonia to Civita Castellana | 6,335.08 mi (10,195.33 km) |
| Bostonia to Civitanova Marche | 6,325.20 mi (10,179.43 km) |
| Bostonia to Civitavecchia | 6,324.96 mi (10,179.04 km) |
| Bostonia to Civitella in Val di Chiana | 6,253.52 mi (10,064.06 km) |
| Bostonia to Clusone | 6,068.46 mi (9,766.23 km) |
| Bostonia to Coccaglio | 6,085.74 mi (9,794.05 km) |
| Bostonia to Codigoro | 6,192.48 mi (9,965.84 km) |
| Bostonia to Codogno | 6,097.41 mi (9,812.83 km) |
| Bostonia to Codroipo | 6,160.23 mi (9,913.94 km) |
| Bostonia to Cogoleto | 6,101.22 mi (9,818.96 km) |
| Bostonia to Colle di Val d'Elsa | 6,235.09 mi (10,034.41 km) |
| Bostonia to Colle Salvetti | 6,203.12 mi (9,982.95 km) |
| Bostonia to Collecchio | 6,135.20 mi (9,873.65 km) |
| Bostonia to Colleferro | 6,384.88 mi (10,275.47 km) |
