| Boston to Cividale del Friuli | 765.72 mi (1,232.31 km) |
| Boston to Civita Castellana | 934.94 mi (1,504.64 km) |
| Boston to Civitanova Marche | 918.37 mi (1,477.98 km) |
| Boston to Civitavecchia | 929.39 mi (1,495.71 km) |
| Boston to Civitella in Val di Chiana | 851.20 mi (1,369.87 km) |
| Boston to Clusone | 662.73 mi (1,066.56 km) |
| Boston to Coccaglio | 680.95 mi (1,095.88 km) |
| Boston to Codigoro | 785.56 mi (1,264.23 km) |
| Boston to Codogno | 695.40 mi (1,119.14 km) |
| Boston to Codroipo | 756.59 mi (1,217.62 km) |
| Boston to Cogoleto | 711.73 mi (1,145.41 km) |
| Boston to Colle di Val d'Elsa | 835.60 mi (1,344.77 km) |
| Boston to Colle Salvetti | 806.15 mi (1,297.37 km) |
| Boston to Collecchio | 733.00 mi (1,179.64 km) |
| Boston to Colleferro | 984.56 mi (1,584.50 km) |
