| Sidney to Chojnice | 4,461.19 mi (7,179.59 km) |
| Sidney to Chojnow | 4,499.32 mi (7,240.95 km) |
| Sidney to Chorzow | 4,645.48 mi (7,476.17 km) |
| Sidney to Choszczno | 4,408.47 mi (7,094.75 km) |
| Sidney to Chrzanow | 4,668.32 mi (7,512.94 km) |
| Sidney to Ciechanow | 4,598.37 mi (7,400.36 km) |
| Sidney to Ciechocinek | 4,535.21 mi (7,298.71 km) |
| Sidney to Cieszyn | 4,656.66 mi (7,494.17 km) |
| Sidney to Czarna Bialostocka | 4,667.74 mi (7,512.01 km) |
| Sidney to Czarnkow | 4,458.49 mi (7,175.25 km) |
| Sidney to Czechowice-Dziedzice | 4,663.36 mi (7,504.95 km) |
| Sidney to Czeladz | 4,648.85 mi (7,481.60 km) |
| Sidney to Czersk Pomorski | 4,471.88 mi (7,196.80 km) |
| Sidney to Czestochowa | 4,630.93 mi (7,452.76 km) |
| Sidney to Czluchow | 4,456.28 mi (7,171.68 km) |
