| Douglas to Ciampino | 1,206.67 mi (1,941.94 km) |
| Douglas to Cicciano | 1,319.46 mi (2,123.47 km) |
| Douglas to Cingoli | 1,160.72 mi (1,868.01 km) |
| Douglas to Cinisello Balsamo | 912.48 mi (1,468.49 km) |
| Douglas to Cinisi | 1,405.61 mi (2,262.12 km) |
| Douglas to Cirie | 862.25 mi (1,387.66 km) |
| Douglas to Ciro Marina | 1,494.86 mi (2,405.75 km) |
| Douglas to Cislago | 898.61 mi (1,446.17 km) |
| Douglas to Cisterna di Latina | 1,225.12 mi (1,971.64 km) |
| Douglas to Cisternino | 1,443.32 mi (2,322.80 km) |
| Douglas to Citta di Castello | 1,118.36 mi (1,799.83 km) |
| Douglas to Citta Sant'Angelo | 1,230.35 mi (1,980.05 km) |
| Douglas to Cittadella | 1,011.92 mi (1,628.54 km) |
| Douglas to Cittanova | 1,504.99 mi (2,422.05 km) |
| Douglas to Cividale del Friuli | 1,063.72 mi (1,711.89 km) |
