| Mariehamn to Ciampino | 1,302.19 mi (2,095.67 km) |
| Mariehamn to Cicciano | 1,342.01 mi (2,159.76 km) |
| Mariehamn to Cingoli | 1,189.88 mi (1,914.93 km) |
| Mariehamn to Cinisello Balsamo | 1,097.15 mi (1,765.69 km) |
| Mariehamn to Cinisi | 1,544.68 mi (2,485.93 km) |
| Mariehamn to Cirie | 1,145.41 mi (1,843.36 km) |
| Mariehamn to Ciro Marina | 1,437.50 mi (2,313.44 km) |
| Mariehamn to Cislago | 1,094.81 mi (1,761.92 km) |
| Mariehamn to Cisterna di Latina | 1,314.09 mi (2,114.83 km) |
| Mariehamn to Cisternino | 1,342.39 mi (2,160.38 km) |
| Mariehamn to Citta di Castello | 1,193.81 mi (1,921.26 km) |
| Mariehamn to Citta Sant'Angelo | 1,240.00 mi (1,995.58 km) |
| Mariehamn to Cittadella | 1,052.78 mi (1,694.29 km) |
| Mariehamn to Cittanova | 1,512.18 mi (2,433.61 km) |
| Mariehamn to Cividale del Friuli | 1,003.02 mi (1,614.20 km) |
