| Letchworth to Cassina de' Pecchi | 623.87 mi (1,004.02 km) |
| Letchworth to Cassino | 980.28 mi (1,577.61 km) |
| Letchworth to Castagneto Carducci | 789.16 mi (1,270.03 km) |
| Letchworth to Castano Primo | 603.39 mi (971.07 km) |
| Letchworth to Castel Bolognese | 764.83 mi (1,230.88 km) |
| Letchworth to Castel Gandolfo | 929.99 mi (1,496.68 km) |
| Letchworth to Castel Goffredo | 670.97 mi (1,079.82 km) |
| Letchworth to Castel Maggiore | 737.70 mi (1,187.21 km) |
| Letchworth to Castel Mella | 650.02 mi (1,046.11 km) |
| Letchworth to Castel San Giorgio | 1,047.02 mi (1,685.01 km) |
| Letchworth to Castel San Giovanni | 650.64 mi (1,047.11 km) |
| Letchworth to Castel San Pietro Terme | 753.40 mi (1,212.48 km) |
| Letchworth to Castel Volturno | 1,007.67 mi (1,621.69 km) |
| Letchworth to Castelbuono | 1,192.25 mi (1,918.74 km) |
| Letchworth to Casteldaccia | 1,169.61 mi (1,882.31 km) |
