| Upminster to Civril | 1,690.91 mi (2,721.26 km) |
| Upminster to Cizre | 2,250.40 mi (3,621.66 km) |
| Upminster to Cobanlar | 1,714.60 mi (2,759.39 km) |
| Upminster to Corlu | 1,484.93 mi (2,389.77 km) |
| Upminster to Corum | 1,807.76 mi (2,909.31 km) |
| Upminster to Cukurca | 2,314.69 mi (3,725.14 km) |
| Upminster to Cukurcayir | 1,993.67 mi (3,208.50 km) |
| Upminster to Cumayeri | 1,626.44 mi (2,617.50 km) |
| Upminster to Cumra | 1,847.22 mi (2,972.81 km) |
| Upminster to Cungus | 2,089.21 mi (3,362.26 km) |
| Upminster to Dargecit | 2,221.30 mi (3,574.84 km) |
| Upminster to Davutlar | 1,621.75 mi (2,609.95 km) |
| Upminster to Demirozu | 2,032.73 mi (3,271.37 km) |
| Upminster to Demre | 1,798.99 mi (2,895.20 km) |
| Upminster to Denizciler | 2,030.98 mi (3,268.55 km) |
