| Owings Mills to Clacton-on-Sea | 3,677.15 mi (5,917.81 km) |
| Owings Mills to Clay Cross | 3,545.42 mi (5,705.80 km) |
| Owings Mills to Clayton | 3,517.58 mi (5,661.00 km) |
| Owings Mills to Clayton le Moors | 3,495.30 mi (5,625.14 km) |
| Owings Mills to Cleckheaton | 3,522.38 mi (5,668.73 km) |
| Owings Mills to Cleethorpes | 3,592.39 mi (5,781.39 km) |
| Owings Mills to Clevedon | 3,521.85 mi (5,667.86 km) |
| Owings Mills to Clifton | 3,560.01 mi (5,729.28 km) |
| Owings Mills to Clifton | 3,541.93 mi (5,700.19 km) |
| Owings Mills to Cliftonville | 3,696.98 mi (5,949.72 km) |
| Owings Mills to Clitheroe | 3,493.22 mi (5,621.80 km) |
| Owings Mills to Clydebank | 3,381.88 mi (5,442.61 km) |
| Owings Mills to Coalville | 3,556.00 mi (5,722.82 km) |
| Owings Mills to Coatbridge | 3,396.59 mi (5,466.28 km) |
| Owings Mills to Cobham | 3,624.47 mi (5,833.03 km) |
