| Eureka to Cortona | 6,018.72 mi (9,686.20 km) |
| Eureka to Cosenza | 6,367.38 mi (10,247.31 km) |
| Eureka to Cossato | 5,783.34 mi (9,307.39 km) |
| Eureka to Costa Volpino | 5,819.84 mi (9,366.12 km) |
| Eureka to Creazzo | 5,873.11 mi (9,451.85 km) |
| Eureka to Crema | 5,835.68 mi (9,391.62 km) |
| Eureka to Cremona | 5,858.49 mi (9,428.33 km) |
| Eureka to Crevalcore | 5,912.20 mi (9,514.77 km) |
| Eureka to Crispiano | 6,313.35 mi (10,160.36 km) |
| Eureka to Crosia | 6,364.46 mi (10,242.61 km) |
| Eureka to Crotone | 6,402.74 mi (10,304.21 km) |
| Eureka to Cuneo | 5,833.73 mi (9,388.48 km) |
| Eureka to Cuorgne | 5,779.27 mi (9,300.83 km) |
| Eureka to Cusano Milanino | 5,811.76 mi (9,353.12 km) |
| Eureka to Cutro | 6,402.39 mi (10,303.65 km) |
