| Omaha to Carmona | 4,603.06 mi (7,407.91 km) |
| Omaha to Cartagena | 4,803.89 mi (7,731.11 km) |
| Omaha to Cartama | 4,678.33 mi (7,529.05 km) |
| Omaha to Cartaya | 4,541.86 mi (7,309.41 km) |
| Omaha to Caspe | 4,694.87 mi (7,555.66 km) |
| Omaha to Cassa de la Selva | 4,787.99 mi (7,705.52 km) |
| Omaha to Castalla | 4,776.11 mi (7,686.41 km) |
| Omaha to Castellbisbal | 4,768.65 mi (7,674.39 km) |
| Omaha to Castelldefels | 4,776.63 mi (7,687.24 km) |
| Omaha to Castello de Ampurias | 4,780.65 mi (7,693.72 km) |
| Omaha to Castellon de la Plana | 4,746.19 mi (7,638.25 km) |
| Omaha to Castilleja de la Cuesta | 4,587.62 mi (7,383.07 km) |
| Omaha to Catarroja | 4,754.28 mi (7,651.28 km) |
| Omaha to Catral | 4,788.40 mi (7,706.18 km) |
| Omaha to Caudete | 4,757.94 mi (7,657.16 km) |
