| Echelon to Cosham | 3,514.94 mi (5,656.75 km) |
| Echelon to Costessey | 3,568.90 mi (5,743.58 km) |
| Echelon to Cottingham | 3,481.67 mi (5,603.21 km) |
| Echelon to Coulsdon | 3,542.92 mi (5,701.78 km) |
| Echelon to Coventry | 3,464.64 mi (5,575.80 km) |
| Echelon to Cowdenbeath | 3,329.40 mi (5,358.15 km) |
| Echelon to Cowes | 3,506.98 mi (5,643.94 km) |
| Echelon to Cowley | 3,524.47 mi (5,672.08 km) |
| Echelon to Cowley | 3,490.18 mi (5,616.91 km) |
| Echelon to Cramlington | 3,412.70 mi (5,492.21 km) |
| Echelon to Cranleigh | 3,532.94 mi (5,685.71 km) |
| Echelon to Crawley | 3,545.52 mi (5,705.96 km) |
| Echelon to Crayford | 3,553.24 mi (5,718.39 km) |
| Echelon to Crewe | 3,414.18 mi (5,494.59 km) |
| Echelon to Crigglestone | 3,440.64 mi (5,537.17 km) |
