| Tonawanda to Cognac | 3,722.45 mi (5,990.70 km) |
| Tonawanda to Cogolin | 4,099.63 mi (6,597.71 km) |
| Tonawanda to Colmar | 3,961.86 mi (6,376.00 km) |
| Tonawanda to Colombes | 3,728.63 mi (6,000.66 km) |
| Tonawanda to Colomiers | 3,863.05 mi (6,216.97 km) |
| Tonawanda to Combs-la-Ville | 3,749.05 mi (6,033.51 km) |
| Tonawanda to Comines | 3,702.57 mi (5,958.71 km) |
| Tonawanda to Compiegne | 3,736.43 mi (6,013.21 km) |
| Tonawanda to Concarneau | 3,504.01 mi (5,639.16 km) |
| Tonawanda to Conde-sur-l'Escaut | 3,735.01 mi (6,010.92 km) |
| Tonawanda to Conflans-Sainte-Honorine | 3,720.05 mi (5,986.84 km) |
| Tonawanda to Corbas | 3,944.75 mi (6,348.47 km) |
| Tonawanda to Corbeil-Essonnes | 3,747.64 mi (6,031.24 km) |
| Tonawanda to Cormeilles-en-Parisis | 3,725.01 mi (5,994.83 km) |
| Tonawanda to Cosne sur Loire | 3,804.21 mi (6,122.28 km) |
