| Portlethen to Castle Rock (Colorado) | 4,415.43 mi (7,105.94 km) |
| Portlethen to Castro Valley (California) | 5,017.68 mi (8,075.18 km) |
| Portlethen to Catalina Foothills (Arizona) | 5,009.06 mi (8,061.31 km) |
| Portlethen to Cataño (Puerto Rico) | 4,184.60 mi (6,734.47 km) |
| Portlethen to Cathedral City (California) | 5,089.96 mi (8,191.50 km) |
| Portlethen to Catonsville (Maryland) | 3,454.24 mi (5,559.05 km) |
| Portlethen to Cave Spring (Virginia) | 3,677.70 mi (5,918.69 km) |
| Portlethen to Cayce (South Carolina) | 3,887.37 mi (6,256.12 km) |
| Portlethen to Cayey (Puerto Rico) | 4,203.75 mi (6,765.29 km) |
| Portlethen to Cedar City (Utah) | 4,764.50 mi (7,667.73 km) |
| Portlethen to Cedar Falls (Iowa) | 3,841.74 mi (6,182.68 km) |
| Portlethen to Cedar Hill (Texas) | 4,531.42 mi (7,292.62 km) |
| Portlethen to Cedar Lake (Indiana) | 3,729.77 mi (6,002.48 km) |
| Portlethen to Cedar Mill (Oregon) | 4,569.09 mi (7,353.24 km) |
| Portlethen to Cedar Park (Texas) | 4,676.83 mi (7,526.62 km) |
