| Portlethen to Cermik | 2,283.61 mi (3,675.12 km) |
| Portlethen to Cesme | 1,825.55 mi (2,937.93 km) |
| Portlethen to Ceyhan | 2,213.24 mi (3,561.86 km) |
| Portlethen to Ceylanpinar | 2,372.51 mi (3,818.19 km) |
| Portlethen to Cicekdagi | 2,028.06 mi (3,263.84 km) |
| Portlethen to Cide | 1,861.98 mi (2,996.56 km) |
| Portlethen to Cifteler | 1,923.19 mi (3,095.07 km) |
| Portlethen to Ciftlik | 2,106.31 mi (3,389.77 km) |
| Portlethen to Ciftlikkoy | 1,797.25 mi (2,892.40 km) |
| Portlethen to Cihanbeyli | 2,026.42 mi (3,261.20 km) |
| Portlethen to Cildir | 2,268.23 mi (3,650.36 km) |
| Portlethen to Cilimli | 1,843.89 mi (2,967.46 km) |
| Portlethen to Cinar | 2,339.74 mi (3,765.45 km) |
| Portlethen to Cinarcik | 1,791.32 mi (2,882.86 km) |
| Portlethen to Cine | 1,921.42 mi (3,092.23 km) |
