| Quincy to Chivasso | 3,781.62 mi (6,085.92 km) |
| Quincy to Ciampino | 4,102.08 mi (6,601.66 km) |
| Quincy to Cicciano | 4,217.59 mi (6,787.55 km) |
| Quincy to Cingoli | 4,073.24 mi (6,555.24 km) |
| Quincy to Cinisello Balsamo | 3,827.51 mi (6,159.79 km) |
| Quincy to Cinisi | 4,258.38 mi (6,853.20 km) |
| Quincy to Cirie | 3,767.79 mi (6,063.67 km) |
| Quincy to Ciro Marina | 4,392.69 mi (7,069.35 km) |
| Quincy to Cislago | 3,813.60 mi (6,137.40 km) |
| Quincy to Cisterna di Latina | 4,119.66 mi (6,629.95 km) |
| Quincy to Cisternino | 4,353.27 mi (7,005.91 km) |
| Quincy to Citta di Castello | 4,027.86 mi (6,482.22 km) |
| Quincy to Citta Sant'Angelo | 4,139.68 mi (6,662.17 km) |
| Quincy to Cittadella | 3,933.60 mi (6,330.52 km) |
| Quincy to Cittanova | 4,385.94 mi (7,058.49 km) |
