| Ronkonkoma to Chivasso | 3,927.38 mi (6,320.51 km) |
| Ronkonkoma to Ciampino | 4,247.13 mi (6,835.09 km) |
| Ronkonkoma to Cicciano | 4,362.67 mi (7,021.04 km) |
| Ronkonkoma to Cingoli | 4,219.12 mi (6,790.02 km) |
| Ronkonkoma to Cinisello Balsamo | 3,973.65 mi (6,394.97 km) |
| Ronkonkoma to Cinisi | 4,401.56 mi (7,083.63 km) |
| Ronkonkoma to Cirie | 3,913.53 mi (6,298.22 km) |
| Ronkonkoma to Ciro Marina | 4,537.63 mi (7,302.60 km) |
| Ronkonkoma to Cislago | 3,959.74 mi (6,372.59 km) |
| Ronkonkoma to Cisterna di Latina | 4,264.66 mi (6,863.30 km) |
| Ronkonkoma to Cisternino | 4,498.88 mi (7,240.24 km) |
| Ronkonkoma to Citta di Castello | 4,173.61 mi (6,716.78 km) |
| Ronkonkoma to Citta Sant'Angelo | 4,285.36 mi (6,896.62 km) |
| Ronkonkoma to Cittadella | 4,080.14 mi (6,566.36 km) |
| Ronkonkoma to Cittanova | 4,530.10 mi (7,290.50 km) |
