| Didcot to Chivasso | 608.87 mi (979.88 km) |
| Didcot to Ciampino | 939.91 mi (1,512.65 km) |
| Didcot to Cicciano | 1,048.23 mi (1,686.97 km) |
| Didcot to Cingoli | 880.26 mi (1,416.64 km) |
| Didcot to Cinisello Balsamo | 634.21 mi (1,020.66 km) |
| Didcot to Cinisi | 1,159.65 mi (1,866.28 km) |
| Didcot to Cirie | 597.59 mi (961.73 km) |
| Didcot to Ciro Marina | 1,220.92 mi (1,964.89 km) |
| Didcot to Cislago | 620.78 mi (999.05 km) |
| Didcot to Cisterna di Latina | 958.56 mi (1,542.65 km) |
| Didcot to Cisternino | 1,161.41 mi (1,869.11 km) |
| Didcot to Citta di Castello | 841.66 mi (1,354.51 km) |
| Didcot to Citta Sant'Angelo | 951.77 mi (1,531.73 km) |
| Didcot to Cittadella | 721.60 mi (1,161.30 km) |
| Didcot to Cittanova | 1,241.08 mi (1,997.32 km) |
