| Tonawanda to Cortona | 4,328.20 mi (6,965.56 km) |
| Tonawanda to Cosenza | 4,669.09 mi (7,514.17 km) |
| Tonawanda to Cossato | 4,083.80 mi (6,572.24 km) |
| Tonawanda to Costa Volpino | 4,153.12 mi (6,683.79 km) |
| Tonawanda to Creazzo | 4,220.36 mi (6,792.01 km) |
| Tonawanda to Crema | 4,153.39 mi (6,684.24 km) |
| Tonawanda to Cremona | 4,176.43 mi (6,721.31 km) |
| Tonawanda to Crevalcore | 4,237.90 mi (6,820.25 km) |
| Tonawanda to Crispiano | 4,654.80 mi (7,491.17 km) |
| Tonawanda to Crosia | 4,679.43 mi (7,530.81 km) |
| Tonawanda to Crotone | 4,714.81 mi (7,587.75 km) |
| Tonawanda to Cuneo | 4,101.31 mi (6,600.42 km) |
| Tonawanda to Cuorgne | 4,068.88 mi (6,548.22 km) |
| Tonawanda to Cusano Milanino | 4,126.15 mi (6,640.39 km) |
| Tonawanda to Cutro | 4,711.34 mi (7,582.17 km) |
