| Siedlce to Chivasso | 811.76 mi (1,306.40 km) |
| Siedlce to Ciampino | 847.30 mi (1,363.59 km) |
| Siedlce to Cicciano | 855.45 mi (1,376.71 km) |
| Siedlce to Cingoli | 737.95 mi (1,187.61 km) |
| Siedlce to Cinisello Balsamo | 747.19 mi (1,202.48 km) |
| Siedlce to Cinisi | 1,063.41 mi (1,711.39 km) |
| Siedlce to Cirie | 820.24 mi (1,320.05 km) |
| Siedlce to Ciro Marina | 917.60 mi (1,476.73 km) |
| Siedlce to Cislago | 751.55 mi (1,209.50 km) |
| Siedlce to Cisterna di Latina | 854.37 mi (1,374.98 km) |
| Siedlce to Cisternino | 822.28 mi (1,323.32 km) |
| Siedlce to Citta di Castello | 758.90 mi (1,221.32 km) |
| Siedlce to Citta Sant'Angelo | 768.66 mi (1,237.04 km) |
| Siedlce to Cittadella | 654.16 mi (1,052.76 km) |
| Siedlce to Cittanova | 999.93 mi (1,609.24 km) |
