| Portlethen to Romeoville (Illinois) | 3,739.22 mi (6,017.69 km) |
| Portlethen to Romulus (Michigan) | 3,543.94 mi (5,703.43 km) |
| Portlethen to Ronkonkoma (New York) | 3,244.88 mi (5,222.13 km) |
| Portlethen to Roosevelt (New York) | 3,267.86 mi (5,259.11 km) |
| Portlethen to Rosamond (California) | 5,080.12 mi (8,175.66 km) |
| Portlethen to Rosaryville (Maryland) | 3,482.44 mi (5,604.44 km) |
| Portlethen to Roscoe (Illinois) | 3,729.78 mi (6,002.51 km) |
| Portlethen to Rose Hill (Virginia) | 3,491.76 mi (5,619.44 km) |
| Portlethen to Roseburg (Oregon) | 4,720.69 mi (7,597.21 km) |
| Portlethen to Rosedale (California) | 5,077.36 mi (8,171.23 km) |
| Portlethen to Rosedale (Maryland) | 3,442.54 mi (5,540.24 km) |
| Portlethen to Roselle (Illinois) | 3,720.85 mi (5,988.14 km) |
| Portlethen to Roselle (New Jersey) | 3,294.02 mi (5,301.22 km) |
| Portlethen to Roselle Park (New Jersey) | 3,293.65 mi (5,300.61 km) |
| Portlethen to Rosemead (California) | 5,123.66 mi (8,245.73 km) |
