| Illescas to Clay Cross | 908.61 mi (1,462.26 km) |
| Illescas to Clayton | 948.87 mi (1,527.06 km) |
| Illescas to Clayton le Moors | 946.12 mi (1,522.63 km) |
| Illescas to Cleckheaton | 945.41 mi (1,521.49 km) |
| Illescas to Cleethorpes | 945.35 mi (1,521.39 km) |
| Illescas to Clevedon | 783.63 mi (1,261.13 km) |
| Illescas to Clifton | 892.34 mi (1,436.08 km) |
| Illescas to Clifton | 965.75 mi (1,554.23 km) |
| Illescas to Cliftonville | 818.16 mi (1,316.70 km) |
| Illescas to Clitheroe | 952.71 mi (1,533.24 km) |
| Illescas to Clydebank | 1,090.81 mi (1,755.48 km) |
| Illescas to Coalville | 878.81 mi (1,414.32 km) |
| Illescas to Coatbridge | 1,087.96 mi (1,750.91 km) |
| Illescas to Cobham | 791.88 mi (1,274.40 km) |
| Illescas to Cockermouth | 1,005.17 mi (1,617.67 km) |
