| Letchworth to Castelletto sopra Ticino | 590.41 mi (950.17 km) |
| Letchworth to Castelli Calepio | 635.05 mi (1,022.02 km) |
| Letchworth to Castelnovo ne' Monti | 713.66 mi (1,148.53 km) |
| Letchworth to Castelnuovo Berardenga | 806.59 mi (1,298.08 km) |
| Letchworth to Castelnuovo di Porto | 903.89 mi (1,454.67 km) |
| Letchworth to Castelnuovo di Verona | 673.89 mi (1,084.51 km) |
| Letchworth to Castelnuovo Rangone | 724.44 mi (1,165.87 km) |
| Letchworth to Castelvetrano | 1,171.93 mi (1,886.05 km) |
| Letchworth to Castelvetro di Modena | 727.59 mi (1,170.94 km) |
| Letchworth to Castenaso | 744.05 mi (1,197.43 km) |
| Letchworth to Castenedolo | 656.36 mi (1,056.30 km) |
| Letchworth to Castiglion Fiorentino | 819.79 mi (1,319.33 km) |
| Letchworth to Castiglione del Lago | 834.91 mi (1,343.65 km) |
| Letchworth to Castiglione delle Stiviere | 666.64 mi (1,072.86 km) |
| Letchworth to Castrolibero | 1,175.68 mi (1,892.08 km) |
