| Upminster to Chojnice | 738.50 mi (1,188.50 km) |
| Upminster to Chojnow | 674.83 mi (1,086.03 km) |
| Upminster to Chorzow | 816.67 mi (1,314.30 km) |
| Upminster to Choszczno | 648.22 mi (1,043.21 km) |
| Upminster to Chrzanow | 838.73 mi (1,349.80 km) |
| Upminster to Ciechanow | 864.71 mi (1,391.62 km) |
| Upminster to Ciechocinek | 787.56 mi (1,267.46 km) |
| Upminster to Cieszyn | 812.63 mi (1,307.81 km) |
| Upminster to Czarna Bialostocka | 973.49 mi (1,566.68 km) |
| Upminster to Czarnkow | 695.17 mi (1,118.77 km) |
| Upminster to Czechowice-Dziedzice | 825.65 mi (1,328.76 km) |
| Upminster to Czeladz | 821.87 mi (1,322.66 km) |
| Upminster to Czersk Pomorski | 756.28 mi (1,217.11 km) |
| Upminster to Czestochowa | 816.55 mi (1,314.11 km) |
| Upminster to Czluchow | 730.84 mi (1,176.18 km) |
