| Boston to Cabestany | 724.21 mi (1,165.50 km) |
| Boston to Cabries | 703.55 mi (1,132.25 km) |
| Boston to Cachan | 306.58 mi (493.39 km) |
| Boston to Caen | 262.58 mi (422.57 km) |
| Boston to Cagnes-sur-Mer | 721.84 mi (1,161.69 km) |
| Boston to Cahors | 592.85 mi (954.10 km) |
| Boston to Calais | 161.19 mi (259.40 km) |
| Boston to Caluire-et-Cuire | 541.88 mi (872.07 km) |
| Boston to Cambrai | 238.52 mi (383.85 km) |
| Boston to Canet-en-Roussillon | 723.07 mi (1,163.68 km) |
| Boston to Cannes | 726.18 mi (1,168.68 km) |
| Boston to Canteleu | 247.67 mi (398.58 km) |
| Boston to Capbreton | 648.00 mi (1,042.86 km) |
| Boston to Carcassonne | 683.35 mi (1,099.74 km) |
| Boston to Carmaux | 624.58 mi (1,005.17 km) |
