| Rancho Santa Margarita to Cosham | 5,443.06 mi (8,759.77 km) |
| Rancho Santa Margarita to Costessey | 5,433.65 mi (8,744.61 km) |
| Rancho Santa Margarita to Cottingham | 5,331.85 mi (8,580.79 km) |
| Rancho Santa Margarita to Coulsdon | 5,451.86 mi (8,773.92 km) |
| Rancho Santa Margarita to Coventry | 5,358.54 mi (8,623.74 km) |
| Rancho Santa Margarita to Cowdenbeath | 5,139.86 mi (8,271.81 km) |
| Rancho Santa Margarita to Cowes | 5,439.01 mi (8,753.24 km) |
| Rancho Santa Margarita to Cowley | 5,431.35 mi (8,740.91 km) |
| Rancho Santa Margarita to Cowley | 5,398.23 mi (8,687.61 km) |
| Rancho Santa Margarita to Cramlington | 5,238.05 mi (8,429.82 km) |
| Rancho Santa Margarita to Cranleigh | 5,449.16 mi (8,769.57 km) |
| Rancho Santa Margarita to Crawley | 5,459.91 mi (8,786.88 km) |
| Rancho Santa Margarita to Crayford | 5,456.39 mi (8,781.22 km) |
| Rancho Santa Margarita to Crewe | 5,298.16 mi (8,526.57 km) |
| Rancho Santa Margarita to Crigglestone | 5,303.37 mi (8,534.95 km) |
