| Omaha to Cadiz | 4,610.03 mi (7,419.13 km) |
| Omaha to Calafell | 4,763.07 mi (7,665.42 km) |
| Omaha to Calahorra | 4,570.96 mi (7,356.25 km) |
| Omaha to Calasparra | 4,746.47 mi (7,638.70 km) |
| Omaha to Calatayud | 4,622.81 mi (7,439.70 km) |
| Omaha to Caldas de Montbuy | 4,769.77 mi (7,676.20 km) |
| Omaha to Caldas de Reyes | 4,275.18 mi (6,880.23 km) |
| Omaha to Calella | 4,790.84 mi (7,710.11 km) |
| Omaha to Callosa de Segura | 4,786.68 mi (7,703.41 km) |
| Omaha to Calpe | 4,804.96 mi (7,732.83 km) |
| Omaha to Calvia | 4,870.91 mi (7,838.97 km) |
| Omaha to Camas | 4,587.64 mi (7,383.09 km) |
| Omaha to Cambados | 4,271.89 mi (6,874.95 km) |
| Omaha to Cambre | 4,263.75 mi (6,861.84 km) |
| Omaha to Cambrils | 4,747.27 mi (7,639.99 km) |
