| Seia to Chojnice | 1,487.88 mi (2,394.51 km) |
| Seia to Chojnow | 1,352.75 mi (2,177.05 km) |
| Seia to Chorzow | 1,451.80 mi (2,336.44 km) |
| Seia to Choszczno | 1,393.19 mi (2,242.12 km) |
| Seia to Chrzanow | 1,467.38 mi (2,361.52 km) |
| Seia to Ciechanow | 1,579.65 mi (2,542.20 km) |
| Seia to Ciechocinek | 1,508.99 mi (2,428.49 km) |
| Seia to Cieszyn | 1,427.10 mi (2,296.69 km) |
| Seia to Czarna Bialostocka | 1,693.17 mi (2,724.89 km) |
| Seia to Czarnkow | 1,426.29 mi (2,295.38 km) |
| Seia to Czechowice-Dziedzice | 1,446.27 mi (2,327.54 km) |
| Seia to Czeladz | 1,458.10 mi (2,346.59 km) |
| Seia to Czersk Pomorski | 1,506.20 mi (2,424.00 km) |
| Seia to Czestochowa | 1,469.57 mi (2,365.05 km) |
| Seia to Czluchow | 1,480.17 mi (2,382.11 km) |
