| Ronkonkoma to Cosham | 3,396.63 mi (5,466.35 km) |
| Ronkonkoma to Costessey | 3,451.15 mi (5,554.09 km) |
| Ronkonkoma to Cottingham | 3,364.20 mi (5,414.16 km) |
| Ronkonkoma to Coulsdon | 3,424.75 mi (5,511.60 km) |
| Ronkonkoma to Coventry | 3,346.68 mi (5,385.95 km) |
| Ronkonkoma to Cowdenbeath | 3,212.76 mi (5,170.43 km) |
| Ronkonkoma to Cowes | 3,388.65 mi (5,453.50 km) |
| Ronkonkoma to Cowley | 3,406.33 mi (5,481.96 km) |
| Ronkonkoma to Cowley | 3,372.06 mi (5,426.80 km) |
| Ronkonkoma to Cramlington | 3,295.68 mi (5,303.89 km) |
| Ronkonkoma to Cranleigh | 3,414.71 mi (5,495.44 km) |
| Ronkonkoma to Crawley | 3,427.30 mi (5,515.70 km) |
| Ronkonkoma to Crayford | 3,435.12 mi (5,528.28 km) |
| Ronkonkoma to Crewe | 3,296.37 mi (5,304.99 km) |
| Ronkonkoma to Crigglestone | 3,323.06 mi (5,347.94 km) |
