| Onex to Chojnice | 725.60 mi (1,167.74 km) |
| Onex to Chojnow | 568.61 mi (915.09 km) |
| Onex to Chorzow | 654.99 mi (1,054.10 km) |
| Onex to Choszczno | 636.40 mi (1,024.19 km) |
| Onex to Chrzanow | 669.79 mi (1,077.92 km) |
| Onex to Ciechanow | 796.44 mi (1,281.74 km) |
| Onex to Ciechocinek | 731.52 mi (1,177.26 km) |
| Onex to Cieszyn | 629.02 mi (1,012.32 km) |
| Onex to Czarna Bialostocka | 907.72 mi (1,460.83 km) |
| Onex to Czarnkow | 658.74 mi (1,060.13 km) |
| Onex to Czechowice-Dziedzice | 648.36 mi (1,043.43 km) |
| Onex to Czeladz | 661.30 mi (1,064.26 km) |
| Onex to Czersk Pomorski | 742.92 mi (1,195.61 km) |
| Onex to Czestochowa | 674.70 mi (1,085.83 km) |
| Onex to Czluchow | 718.44 mi (1,156.22 km) |
