| Seia to Cortona | 1,029.89 mi (1,657.45 km) |
| Seia to Cosenza | 1,268.81 mi (2,041.96 km) |
| Seia to Cossato | 875.23 mi (1,408.55 km) |
| Seia to Costa Volpino | 969.68 mi (1,560.56 km) |
| Seia to Creazzo | 1,029.05 mi (1,656.10 km) |
| Seia to Crema | 941.65 mi (1,515.43 km) |
| Seia to Cremona | 954.13 mi (1,535.52 km) |
| Seia to Crevalcore | 1,001.48 mi (1,611.72 km) |
| Seia to Crispiano | 1,305.53 mi (2,101.05 km) |
| Seia to Crosia | 1,292.43 mi (2,079.96 km) |
| Seia to Crotone | 1,317.29 mi (2,119.97 km) |
| Seia to Cuneo | 823.41 mi (1,325.15 km) |
| Seia to Cuorgne | 847.61 mi (1,364.09 km) |
| Seia to Cusano Milanino | 921.80 mi (1,483.49 km) |
| Seia to Cutro | 1,310.97 mi (2,109.80 km) |
