| Duluth to Chojnice | 4,367.66 mi (7,029.08 km) |
| Duluth to Chojnow | 4,434.68 mi (7,136.93 km) |
| Duluth to Chorzow | 4,575.32 mi (7,363.27 km) |
| Duluth to Choszczno | 4,328.90 mi (6,966.69 km) |
| Duluth to Chrzanow | 4,597.44 mi (7,398.87 km) |
| Duluth to Ciechanow | 4,498.58 mi (7,239.76 km) |
| Duluth to Ciechocinek | 4,443.52 mi (7,151.16 km) |
| Duluth to Cieszyn | 4,592.71 mi (7,391.25 km) |
| Duluth to Czarna Bialostocka | 4,552.38 mi (7,326.34 km) |
| Duluth to Czarnkow | 4,376.39 mi (7,043.12 km) |
| Duluth to Czechowice-Dziedzice | 4,596.23 mi (7,396.91 km) |
| Duluth to Czeladz | 4,577.78 mi (7,367.22 km) |
| Duluth to Czersk Pomorski | 4,375.71 mi (7,042.02 km) |
| Duluth to Czestochowa | 4,555.72 mi (7,331.72 km) |
| Duluth to Czluchow | 4,363.83 mi (7,022.91 km) |
