| Tonawanda to Cabestany | 3,965.44 mi (6,381.76 km) |
| Tonawanda to Cabries | 4,043.63 mi (6,507.59 km) |
| Tonawanda to Cachan | 3,735.97 mi (6,012.45 km) |
| Tonawanda to Caen | 3,614.09 mi (5,816.31 km) |
| Tonawanda to Cagnes-sur-Mer | 4,110.79 mi (6,615.68 km) |
| Tonawanda to Cahors | 3,839.36 mi (6,178.85 km) |
| Tonawanda to Calais | 3,651.68 mi (5,876.81 km) |
| Tonawanda to Caluire-et-Cuire | 3,938.08 mi (6,337.73 km) |
| Tonawanda to Cambrai | 3,729.36 mi (6,001.83 km) |
| Tonawanda to Canet-en-Roussillon | 3,967.37 mi (6,384.86 km) |
| Tonawanda to Cannes | 4,109.18 mi (6,613.09 km) |
| Tonawanda to Canteleu | 3,663.27 mi (5,895.46 km) |
| Tonawanda to Capbreton | 3,740.88 mi (6,020.37 km) |
| Tonawanda to Carcassonne | 3,921.05 mi (6,310.32 km) |
| Tonawanda to Carmaux | 3,883.80 mi (6,250.37 km) |
