| Delaware to Castelfidardo | 4,671.18 mi (7,517.54 km) |
| Delaware to Castelfiorentino | 4,559.13 mi (7,337.21 km) |
| Delaware to Castelfranco di Sopra | 4,582.83 mi (7,375.36 km) |
| Delaware to Castelfranco di Sotto | 4,546.28 mi (7,316.53 km) |
| Delaware to Castelfranco Emilia | 4,524.76 mi (7,281.90 km) |
| Delaware to Castelfranco Veneto | 4,520.07 mi (7,274.34 km) |
| Delaware to Castellabate | 4,858.66 mi (7,819.26 km) |
| Delaware to Castellammare del Golfo | 4,861.96 mi (7,824.57 km) |
| Delaware to Castellammare di Stabia | 4,821.62 mi (7,759.64 km) |
| Delaware to Castellamonte | 4,357.74 mi (7,013.11 km) |
| Delaware to Castellana Grotte | 4,926.11 mi (7,927.80 km) |
| Delaware to Castellaneta | 4,926.95 mi (7,929.16 km) |
| Delaware to Castellanza | 4,398.36 mi (7,078.48 km) |
| Delaware to Castellarano | 4,514.80 mi (7,265.86 km) |
| Delaware to Castelleone | 4,445.50 mi (7,154.33 km) |
