| Portlethen to Odessa (Texas) | 4,754.73 mi (7,652.00 km) |
| Portlethen to Ogden (Utah) | 4,527.19 mi (7,285.81 km) |
| Portlethen to Oildale (California) | 5,069.95 mi (8,159.30 km) |
| Portlethen to Ojus (Florida) | 4,287.16 mi (6,899.51 km) |
| Portlethen to Okemos (Michigan) | 3,556.57 mi (5,723.75 km) |
| Portlethen to Oklahoma City (Oklahoma) | 4,390.87 mi (7,066.42 km) |
| Portlethen to Okmulgee (Oklahoma) | 4,331.40 mi (6,970.71 km) |
| Portlethen to Olathe (Kansas) | 4,113.70 mi (6,620.35 km) |
| Portlethen to Old Jamestown (Missouri) | 3,960.34 mi (6,373.55 km) |
| Portlethen to Oldsmar (Florida) | 4,265.56 mi (6,864.76 km) |
| Portlethen to Olean (New York) | 3,375.26 mi (5,431.95 km) |
| Portlethen to Olive Branch (Mississippi) | 4,151.73 mi (6,681.56 km) |
| Portlethen to Olivehurst (California) | 4,921.88 mi (7,921.00 km) |
| Portlethen to Olney (Maryland) | 3,472.24 mi (5,588.02 km) |
| Portlethen to Olympia (Washington) | 4,482.14 mi (7,213.31 km) |
