| Portlethen to Carson (California) | 5,142.49 mi (8,276.04 km) |
| Portlethen to Carson City (Nevada) | 4,868.57 mi (7,835.20 km) |
| Portlethen to Carteret (New Jersey) | 3,296.21 mi (5,304.74 km) |
| Portlethen to Cartersville (Georgia) | 4,013.14 mi (6,458.52 km) |
| Portlethen to Carthage (Missouri) | 4,190.03 mi (6,743.20 km) |
| Portlethen to Cary (Illinois) | 3,714.61 mi (5,978.09 km) |
| Portlethen to Cary (North Carolina) | 3,709.06 mi (5,969.16 km) |
| Portlethen to Casa de Oro-Mount Helix (California) | 5,168.49 mi (8,317.88 km) |
| Portlethen to Casa Grande (Arizona) | 5,001.54 mi (8,049.20 km) |
| Portlethen to Casas Adobes (Arizona) | 5,010.89 mi (8,064.24 km) |
| Portlethen to Cascades (Virginia) | 3,488.85 mi (5,614.76 km) |
| Portlethen to Casper (Wyoming) | 4,268.25 mi (6,869.09 km) |
| Portlethen to Casselberry (Florida) | 4,182.00 mi (6,730.28 km) |
| Portlethen to Castaic (California) | 5,114.98 mi (8,231.76 km) |
| Portlethen to Castle Pines (Colorado) | 4,411.16 mi (7,099.07 km) |
